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   Implementation Document for the
Polyether Polyols Production NESHAP
        (40 CFR 63, Subpart PPP)
                   Prepared for:

  Information Transfer and Program Integration Division (ITPID)
      Program Implementation and Review Group (PIRG)
        Office of Air Quality Planning and Standards
          U. S. Environmental Protection Agency
            Research Triangle Park, NC 27711

                   Prepared by:

                 EC/R Incorporated
              2327 Englert Dr., Suite 100
                 Durham, NC 27713

                  September 2000

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                 What is the legal status of this guide?

The Office of Air Quality Planning and Standards (OAQPS) and the Office of Enforcement and
Compliance Assistance (OECA) of the U. S. Environmental Protection Agency (EPA) have
reviewed this document and approved it for publication.

When using this document, remember that it isn't legally binding and doesn't replace the final
rule - "National Emission Standard for Hazardous Air Pollutants for Polyether Polyols
Production" (published in the Federal Register, 06/01/99,64 FR 29420) or any State, local or
tribal rules that may apply to your facility.

This document isn't intended, nor can you rely on it, to create any rights enforceable by any party
in litigation with the United States. The EPA may change this document at any time without
public notice.

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                                   Thank You

This document was prepared by a joint partnership among the Environmental Protection Agency
(EPA, or we), State and local agencies for air pollution control, trade associations, and
organizations who produce polyether polyols. At the time of publication, the development team
had the following members:

       Joanne Herman, EPA, OECA
       Kavita Bhatia, EC/R Incorporated
       Lesley Fritz, EC/R Incorporated
       Janet McDonald, EC/R Incorporated
       Phil Norwood, EC/R Incorporated
       Bob Rosensteel, EPA, OAQPS
       David Svendsgaard, EPA, OAQPS, ESD
       Ingrid Ward, EPA, OAQPS, ITPID
We thank these people for their participation.  Their technical insights, experiences, and
suggestions were essential to this guide's development.
                                         11

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                       Table of Contents
Chapter 1 - Introduction
What does this chapter cover?	1
Why should I use this document?  	1
Is there anything I should know before using this document?	1
How do I get copies of this document?	I
We want your feedback	2

Chapter 2 - Regulatory Overview
What does this chapter cover?	4
How do I use this document?	4
Where can I find the regulation? 	4
When was the regulation proposed and promulgated?  	4
When do I need to comply with Subpart PPP?	 . . .'	4
What are the testing and reporting dates? 	6

Chapter 3 -  Applicability
What does this chapter cover?	8
Does this rule apply to me?
Is my facility subject to this rule?  	9
What parts of my facility does the rule cover? 	10
What parts of my facility are exempt from the rule?	10
What parts of my facility do not have any requirements under Subpart PPP? 	H
What parts of my facility have requirements under Subpart PPP? 	H
What are the requirements if I don't use any organic HAP in my PMPU?	12
Primary  Product Determination
What do we mean by "primary product"?	14
How do I  determine my primary product?	14
What requirements must I meet if my process unit is a PMPU?	15
What if my process unit isn't a PMPU?	15
What are my requirements if my PMPU stops producing polyether polyols?	15
Flexible  Operation Unit
What is a flexible operation unit?  	_17
Are my flexible operating units subject to Subpart PPP?  	17
What are the requirements for flexible operation units? 	18
What is an existing affected source?  	21
What is a  new affected source?	:	21
What types of changes are "process changes"?	22
                                    in

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                      Table of Contents
Chapter 4- Determining Group Status
What does this chapter cover?	23
When must I determine Group 1 or Group 2 status?	21
What is a Group 1 continuous process vent?	21
What is a Group 2 continuous process vent?	24
What is a Group 1 storage vessel?	24
What is a Group 2 storage vessel?	24
What is a Group 1 wastewater stream? 	24
What is a Group 2 wastewater stream? 	21
What is a Group 1 combination of batch process vents?	25
What is a Group 2 combination of batch process vents?	25

Chapter 5 -  Startup. Shutdown. Malfunctions and
 Non-Operation
What does this chapter cover?	26
Startup, Shutdown, and Non-operation
What if my PMPU isn't operating?	27
Am I subject during Startup, Shutdown, and Malfunction? 	27
What requirements must I follow during SSMs?	27
Would I ever follow Subpart PPP during SSM or non-operation? 	28
Startup, Shutdown, and Malfunction Plans
What is a Startup, Shutdown and Malfunction Plan? 	29
When must I develop my SSMP?	29
What information should my SSMP contain?	29
Who sees my SSMP and how long do I keep it?	30
Do I have to modify my SSMP periodically? 	30
Do I have to maintain any records when operating under my SSMP?	31
Do I have to submit any reports when I operate under my SSMP?	3_2
                                    IV

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                       Table of Contents
Chapter 6 - Process Vents
What does this chapter cover?	33
What is a process vent?	33
What process vents does Subpart PPP.cover?	•	33
Are there other requirements for process vents?	35
What are my monitoring installation and operation requirements?	35
What are my parameter monitoring requirements?	39
What are my recordkeeping and reporting requirements?	39
What is an excursion?  	47
Can I request an alternative method of monitoring for my process vents?	51.
Can I request an alternative method of recordkeeping for my process vents?	5j
Can I request an alternative method of reporting for my process vents?	5_I

Chapter 7 - Requirements for Process Vents Using THF
What does this chapter cover?	52
What are my monitoring installation and operation requirements?	53
What are my parameter monitoring requirements?	53
What are my recordkeeping and reporting requirements?	53
What is an excursion?  	: ...... 53
Can I request an alternative monitoring, recordkeeping, or reporting?	53

Chapter 8 - Requirements for Process Vents Using Epoxides
What does this chapter cover?	54
What compliance options do I have for new sources?	54
What compliance options do I have for existing sources?	55_
What are my monitoring installation and operation requirements?	56
What are my parameter monitoring requirements?	56
What are my recordkeeping and reporting requirements?	56
What is an excursion?  	56
Can I request alternative monitoring, recordkeeping, or reporting? 	56

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                      Table of Contents
Chapter 9 - Requirements for Process Vents Using Nonepoxide
HAP to Make or Modify the Product
What does this chapter cover?	57
How do I determine the group status of my combination of batch process vents?	57
How do I determine the group status of my continuous process vents? 	58
How do I calculate the TRE index value for my continuous process vent?  	59
How do I calculate TRE if I combine batch and continuous process vents?  	.59
What are my monitoring installation and operation requirements?	60
What are my compliance, monitoring, recordkeeping, and reporting requirements? ... 60
What is a process change?	66
What  must I do if I have a process change?	66
How do I redetermine group status for Group 2 batch process vents?  	67
How do I redetermine group status for Group 2 continuous process vents?	67
What are my parameter monitoring requirements?	68
What are my recordkeeping and reporting requirements?	68
What is an excursion?   	68
Can I request alternative monitoring, recordkeeping, or reporting? 	68

Chapter 10 - Process Vent Requirements for Nonepoxide HAP
Emissions from Catalyst Extraction
What does this chapter cover?	69
What do we mean by "catalyst extraction"? 	69
What compliance options do I have for new and existing sources? 	69
What are my monitor installation and operation requirements? 	69
What are my parameter monitoring requirements?	69
What are my recordkeeping and reporting requirements?	69
What is an excursion?   	70
Can I request alternative monitoring, recordkeeping, or reporting? 	70

Chapter 11 - Process Vent Requirements For Processes Using
Extended Cookout
What does this chapter cover?	71
What do we mean by "extended cookout"? 	7_i
What is a product class?	71
What compliance options do I have when using ECO?	72
What are the requirements for new and existing sources using ECO? 	73
What is an excursion?   	77
What if I use a new polyether polyol or change operations?	77
                                   VI

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                      Table of Contents

Chapter 12 - Storage Vessels
What does this chapter cover?	79
What is a storage vessel?	79
Which storage vessels does Subpart PPP cover?	79
What compliance options do I have?	80
Must I follow all of the HON requirements for storage vessels?	80
What monitoring must I  do? 	8J_
What records must I keep?	82
What reports must I submit? 	82

Chapter 13 - Waste water
What does this chapter cover?	84
What is wastewater?  	84
Which wastewater streams does Subpart PPP cover?        	84
What are Group 1 and Group 2 wastewater streams?  	84
What compliance options do I have?	£5.
Must I follow all the HON requirements for wastewater?	85
What monitoring must I  do? 	86
What is an excursion of a monitoring parameter?	86
What records must I keep?	87
What reports must I submit? 	87

Chapter 14 - Equipment Leaks
What does this chapter cover?	88
What is an equipment leak?	88
What equipment leaks does this rule cover?  	88
What are the requirements for equipment leaks?	8j?
Must I follow all HON requirements for equipment leaks?	88.
When must I comply with the requirements for compressors?	89
What records must I keep?	89
What reports must I submit? 	89

Chapter 15 - Heat  Exchange Systems
What does this chapter cover?	90
What is a heat exchange  system?	90
Which heat exchange systems does Subpart PPP cover?  	90
What are the requirements for heat exchanger systems?	9J_
Must I follow all HON requirements for heat exchanger systems?	91_
What records must I keep?	91^
What reports must 1 submit? 	9j_
                                   vn

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                      Table of Contents
Chapter 16 - General Recordkeeping. Notification, and Reporting
Requirements
What does this chapter cover?	92
Where do I send my reports and notifications?	92
How do I meet the notification and reporting requirements? 	92
General Recordkeeping Requirements
What records must I keep?	93
How long must I keep records?	93
What records must I keep for Continuous Monitoring Systems? 	93
How do I request an alternative to continuous monitoring and recordkeeping?	94
What is the reduced recordkeeping program?	96
When can I stop taking daily records?	97
What notifications must I submit for the reduced recordkeeping program? -	98
Notifications
When must I submit an Initial Notification?	98
What must I include in the Notification of Compliance Status?	98
What must I include in the Notification of Inspection?	101
Reports
What reports must I submit? 	102
What must I include in my Precompliance Report? 	103
When may I use a supplement to the Precompliance Report?	105
What must I include in my Periodic Reports?	105
What must I include in my Quarterly Reports?	108
How do I report process changes or additions?	108

Chapter 17 - Other Requirements and Information
What does this chapter cover?	109
Who administers this regulation?  	109
Do I need a Title V permit?	109
How do I change my permit to include this rule? 	109
What parts of the General Provisions apply?	•	110

Chapter 18 - Getting Additional Help
What does this chapter cover?	Ill
Where do I go for help?	Ill
Can I get more information on the Web?	112
                                   vm

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                     Table of Contents
Chapter 19 - Inspection Checklist
^Vhat does this chapter cover?	115
How do I use the checklist?	115

Appendix A  - Final Rule

Appendix B  - Example Forms
Application for Approval of Construction or Reconstruction	B-2
Precompliance Report 	B-6
Notification of Compliance Status For Equipment Leaks	B-10
Notification of Compliance Status	B-13
                                 IX

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                       Chapter 1  - Introduction

What does this chapter cover?

This chapter explains how and why to use this document.

Why should I use this document?

This document can help plant owners and operators (you) understand the Polyether Polyols
Production NESHAP (also known as 40 CFR part 63, subpart PPP) by helping you determine
five main things.

    •   if the rule applies to your plant and process
    •   what compliance options are available for the different emission points

    •   whether particular emission points are "Group 1" or "Group 2"

    •   what to monitor, record, and report

    •   dates by which you must meet requirements

Is there anything I should know before using this document?

When using this document, remember that it doesn't replace the final rule and that it covers only
requirements published on or before May 8,2000. You should keep up with new requirements
printed after this date by periodically checking the Federal Register and the Code of Federal
Regulations (CFR). You can download Federal Register notices by going to the Government
Printing Office (GPO) website at www.access.gpo.gov/su  docs/aces/acesl40.html.

We've included a copy of the final  rule and amendments in Appendix A (as published in the
Federal Register, 06/01/99, 64 FR 29420 and 05/8/2000, 65 FR 26491), so that you can
reference the rule while you're using this document.

How do I get copies of this document?

You can get copies of this document in four ways:

   •   EPA's Unified Air Toxics Website (www.epa.gov/ttn/uatw).  Look under Rules and
       Implementation, polyether polyols, or www.epa.gov/ttn/uatw/polvols/polvols.html.
       Library Services Office, (MD-35), U.S. EPA, Research Triangle Park, NC 27711, or
       www.epa.gov/natlibra/ols.html (limited supply)

       National Technical Information Services (NTIS), 5285 Port Royal Road, Springfield,
       VA 22161, or 1-(800)- 553-6847, or www.ntis.gov/index.html (NTIS will charge you a
       fee for this document)

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                                                                 Chapter 1 - Introduction

    •    National Center for Environmental Publications and Information, 1-(800)-490-9198 or
        www. epa.gov/ncepihom/index.html.

We want your feedback

To serve you better, we've included a survey on the usefulness of this document. If you'd like to
participate, please fill out the survey on.page 3 and return it to the address indicated. We'll keep
your responses confidential if you desire, but will use them to help us improve future documents.
               Help us publish better documents by filling out our survey

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                  Survey on the Plain Language Guide to the Polyether Polyols Production NESHAP

 Please help us gauge this document's usefulness by completing this short form.  We'll keep your responses confidential if you desire, but
 use them to help improve future documents.  Check this box if you would like us to keep your responses confidential n

 1. What type of business do you work for? (check one of the following)
       Manufacturing D         Contractor D        Tribe D    Government (specify Federal, State, local)	
       Other	

 2. What are your job responsibilities? (check any that apply)
       Plant Operator D         Maintenance  D      Plant Manager D    Environmental Staff n
       Regulator  D             Other:	

 3. How did you hear about this guidance?  (check any that apply)
       Co-worker  D       EPA TTN via dial up modem  D        EPA TTN via the Web D
       Other	

 Please check the box under the number that most closely shows your agreement with the following statements
                                                                                1= Strongly Agree to 5 = Strongly Disagree
Statement
The guidance was timely
The document provides a good overview of the rule
The document provides the type of information my
organization needs to comply.
The guidance helped us achieve compliance more
quickly than we would have without it
We have incorporated parts of this document into
our own policy documents
The format of this document was well organized and
easy to understand.
1






2






3






4






5






N/A






4. What did you like about this document or what helped you the most? (be as specific as you can)
5. What did you not like about this document or what helped you the least? (be as specific as you can)
6. What would you change about this document (e.g., formatting, or things that you didn't see in the document)?
7. Overall, did you find this document to be:
       extremely useful n       very useful
somewhat useful   n     not useful at all o
8.  Other comments:
Provide additional comment on the back of this form or on a separate sheet of paper.
Return survey to: ATTN: Polyether Polyols Implementation Contact, U.S. Environmental Protection Agency (EPA), Information
Transfer and Program Integration Division (MD-12), Research Triangle Park, NC 27711, or fax (919) 541-2664.

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                 Chapter 2 - Regulatory Overview
What does this chapter cover?

This chapter gives you some general information about Subpart PPP and tells you how to use this
document.  It also describes compliance, testing, and reporting deadlines.

How do I use this document?

This document summarizes the major requirements of the NESHAP for polyether polyols
production facilities. While we've attempted to be as complete as possible, you shouldn't use
this summary as a substitute for the final rule and any subsequent amendments. This document
includes only requirements from the final rule and rule amendments published 5/8/2000.


In addition to the requirements summarized in this section, you're also subject to §§63.1 through
63.15 of the General Provisions. See Table 1 in subpart PPP (which can be found in
Appendix A of this document) for specific requirements, since we haven't included them here.

Where can I find the regulation?

You can find this regulation in the Code of Federal Regulations (CFR, revised as of July 1, 1999)
at 40 CFR 63 Subpart PPP, §§63.1-420 through 63.1439.

When was the regulation proposed and promulgated?

Subpart PPP was proposed on 9/4/97 [62 FR 46804].  It was promulgated on 6/1/99 [64 FR
29420]. A Correction Notice was published on 6/14/99 [64 FR 31895]. Amendments to the rule
were promulgated on 5/8/2000 [65 FR 26491].

When do I need  to comply with Subpart PPP?

When you will have to comply with the rule depends on whether you have an existing affected
source or a new affected source. Table 1 summarizes your compliance dates for new and existing
affected sources.  In general, if your affected source is an existing source, you must comply by
June 1,2002, which is three years after the rule's effective date of June 1,1999. (That is, the
effective date is the date the final rule was published in the Federal Register.)  However, the
new and existing does allow you to request an extension of up to one additional year for the
compliance date for existing sources. If you're a new source, you must comply upon startup.
[§63.1422(b-c)] For more information on new and existing sources, see Chapter 3 on
Applicability.

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                                                                 Chapter 2 - Regulatory Overview
                 Table 1.  Compliance Dates for Existing and New Sources
 If ...
Then your1...
And you must comply by
 construction or reconstruction of
 your affected source began on or
 before 09-04-97
affected source is an
existing source
06/01/022  [§63.1422(c)J
 construction or reconstruction of
 your affected source began after
 09-04-97
affected source is a new
source
6/1/99 or upon initial startup,
whichever is later [§63.1422(b)]
 your facility is a major source and
 you've added a new PMPU that
 meets the criteria in
 §63.1420(g)(l)(i)
new PMPU and
associated equipment is
a new source
6/1/99 or upon initial startup,
whichever is later
[§63.1420(g)(l)(i)]
 your facility is a major source and
 you've added a new PMPU that
 doesn't meet the criteria in
 §63.1420(g)(l)(i)
new PMPU and
associated equipment is
an existing source
06/01/02 or upon initial startup , or
by 6 months after notifying the
Administrator that a process unit has
been designated as a PMPU,
whichever is later.
 you've replaced a component at an
 existing affected source that the
 replacement meets the criteria for
 reconstruction in
 §63.1420(g)(2)(i)
affected source is a new
source
06/01/99 or upon initial startup,
whichever is later
[§63.1420(g)(2)(i)]
 you've added an emission point or
 made a process change to an
 existing affected source that
 doesn't meet the criteria in
 §63.1420(g)(2)(i) but adds a new
 Group 1 emission point (process
 vent, storage vessel, or wastewater
 stream)
emission point is an
existing source
06/01/02 or upon initial startup,
whichever is later
[§63.1420(g)(2)(ii)]
    'When determining if a source is new or existing, the General Provisions (40 CFR 63, Subpart A,
    §63.2) require us to use the proposal date of the rule as the cut-off date. In the case of subpart
    PPP, the rule was proposed on 09/04/97 [62 FR 46804].
    2 §63.1422(d) outlines compliance dates for affected sources subject to the compressor provisions in
    §63.1464. Compliance dates for compressors are addressed in Chapter 14, Equipment Leaks.
Figure 1 provides a visual timeline of your compliance dates.

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                                                    Chapter 2 - Regulatory Overview
What are the testing and reporting dates?
   See Figure 1 for information on performance testing and reporting dates.

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                                      Figure  1.   Compliance  and  Reporting  Time  Line
           Existing
           sources
                   Effective date
                   Junel. 1999
                                            December I, 1999
Equipment Leak ^
Compliance Date
 (§63 I422(d))
                                              Upon initial
                                                startup
                                                                             June 1.2001
Precompliance Report
  (563 M39(e)(3))
                                                                                   I
                               Due with application
                               for construction or
                               reconstruction
                                                               At least 30 days
                                                               before conducting
                                                               performance test
Notification of Planned
  Performance Test
    (563 M37(aX4))
                                 At least 30 days
                                 before conducting
                                 performance test
                                                                                                                                               February I. 2002
                                                                                                                                  Compliance Extension
                                                                                                                                        Request
                                                                                                                                     (563 I422(e))
                                                                                                                                                (Not applicable)
       I
Editing
sources        jme 11 2002          November 1. 2002




                         5 1       Notification of
           Compliance Date            Compliance
             («63 1422)              Status (NOCS)
                                   (563 1439(e)<5))




                       ,         November 1,1999
             June I, 1999               or
                                 150 days after the
                                  initial startup
                                                                    December 1, 2002     m(
                                                  July 1,2003
                                            id every 6 months or 12 months
                                                   afterwards
                                                                     Performance Test
                                                                       Completion
                                                                       (§63 7(a)(2))
                                                Periodic Reports
                                                (§63 I439(e)(6))
                                                                     180 days after
                                                                      initial startup
                                                 July 1,2000 and
                                                 every 6 months or
                                                12 months afterwards
                                                      February I, 2003
                                                and every 6 months or 12 months
                                                        afterwards
                                                 Reports of Startup. Shutdown,
                                                     and Malfunction
                                                     §63 !439
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                        Chapter 3 -  Applicability
What does this chapter cover?

This chapter contains information about when Subpart PPP applies. It has four sections.
 Does this rule apply to
 me?
 Primary Product
 Determination
 Flexible Unit Operation
This section explains the basic criteria for whether
your facility is subject.  It also explains which
parts of your facility the rule covers and which
parts do and do not have regulatory requirements.

The rule does not apply unless you manufacture
polyether polyols as your primary product.  This
section explains how to determine whether
polyether polyols are your primary product.
Figure 2 presents the information visually.

A flexible unit operation is one that produces
polyether polyols some of the time and other
products some of the time. This section describes
your requirements for flexible unit operations,
which are different from those for units that
produce polyether polyols all the time. You must
determine whether a unit is a flexible unit
annually. Figure 3 and Figure 4 show this process.
 Existing and New Sources
The requirements for new and existing facilities
are different. This section explains when a facility
is new or existing. It also explains what happens
when a process change occurs.

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                                                                            Chapter 3- Applicability
                      Does this rule apply  to me?

Is my facility subject to this rule?

Your facility is subject to this rule if it meets all of the following criteria. [§63.1420(a)(2-3)]

    •   contains a group of one or more polyether polyol manufacturing process units (PMPUs)
        and associated equipment
    •   is located at a major source of Hazardous Air Pollutants (HAP) (that is, potential to emit
        at least 10 tons/yr of any HAP or at least 25 tons/yr of any combination of HAP)
    Definition.  Polyether Polyols means a compound formed through the polymerization of ethylene oxide
    (EO) or propylene oxide (PO) or other cyclic ethers with compounds having one or more reactive
    hydrogens (i.e., a hydrogen atom bonded to nitrogen, oxygen, phosphorus, sulfur, etc.) to form polyethers
    (i.e., compounds with two or more ether bonds). Polyether polyols do not include cellulose ethers (such as
    methyl cellulose, carboxymethyl cellulose, hydroxy ethyl cellulose, and hydroxypropyl methyl cellulose), or
    materials regulated under 40 CFR part 63, subparts F, G, and H (the HON), such as glycols and glycol
    ethers.

    Polyether polyol manufacturing process unit (PMPU) means a process unit that manufactures a polyether
    polyol as its primary product, or a process unit designated as a polyether polyol manufacturing unit in
    accordance with §63.1420(e)(2) [i.e., primary product determination and applicability]. A polyether polyol
    manufacturing process unit consists of more than one unit operation. This collection of equipment includes
    purification systems, reactors and their associated product separators and recovery devices, distillation units
    and their associated distillate receivers and recovery devices, other associated unit operations, storage
    vessels, surge control vessels, bottoms receivers, product transfer racks, connected ducts and piping,
    combustion, recovery, or recapture devices or systems, and the equipment (i.e., all pumps, compressors,
    agitators, pressure relief devices, sampling connection systems, open-ended valves or lines, valves,
    connectors, and instrumentation system that are associated with PMPU) that are subject to the equipment
    leak provisions as specified in §63.1434 [i.e., equipment leak provisions].
For a list of regulated HAPs, check our Unified Air Toxics Website (UATW) at
http://ww.epa.gov/ttn/uatw/188polls.txt.  To determine whether the primary product at a PMPU
is a polyol, see the section on Primary Production Determination.

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                                                               Chapter 3- Applicability
                  Does this rule apply to me?

What parts of my facility does the rule cover?

The "affected source" is all the parts of your facility that the rule covers. The affected source
includes each PMPU and the following associated emission points and equipment.
[§63.1420(a)(2),(a)(4)]

    •   each waste management unit
    •   maintenance wastewater
    •   each heat exchange system
    •   equipment required by or used for compliance purposes, including control techniques
       and recovery devices
    •   product finishing operations
    •   each feed and catalyst operation

What parts of my facility are exempt from the rule?

Some parts of your facility are exempt from subpart PPP. That is, they are not part of the
affected source.  They are not part of the PMPU and associated equipment. The rule does not
apply to them. This includes all of the following. [§63.I420(d)]

    •   research and development facilities

    •   solvent reclamation, recovery, or recycling operations at hazardous waste treatment,
       storage, and disposal facilities (TSDF) that require a permit under 40 CFR part 270 and
       aren't part of a PMPU to which this subpart applies. That is, if the TSDF is at your
       plantsite, but is not part of the PMPU, it is not subject to this rule.
    •   reactions or processing that occur after epoxide polymerization is complete and all
       catalyst is removed.
                                        10

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                                                              Chapter 3- Applicability
                  Does this rule apply to me?

What parts of my facility do not have any requirements under
Subpart PPP?
Some parts of your polyether polyol production facility are subject to Subpart PPP and part of
the affected source, but don't have any requirements. They are all of the following.
[§63.1420(c)J
   •   stormwater managed in segregated sewers
   •   water from fire-fighting and deluge systems in segregated sewers
   •   spills
   •   water from safety showers
   •   water from testing of deluge systems
   •   water from testing of firefighting systems
   •   vessels that store or handle material that contains no organic HAP, or organic HAP as
       impurities only
   •   equipment that operates in organic HAP service for less than 300 hours during the
       calendar year
   •   loading racks, loading arms, or loading hoses that only transfer liquids containing HAP
       as impurities
   •   loading racks, loading arms, or loading hoses that vapor balance during all loading
       operations
   •   utility fluids, such as heat transfer fluids

What parts of my facility have  requirements under Subpart PPP?
The following parts of your facility are subject to subpart PPP, part of the affected source, and
subject to emission standards. The emission standards and other requirements for each are
addressed in a separate section within this document. [§63.1424(a)]

 process vents (see Chapter 6)               equipment leaks (see Chapter 14)
 storage vessels (see Chapter 12)             heat exchangers (see Chapter 15)
 wastewater  (see Chapter 13)
                                       11

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                   Does this rule apply to me?
                                                                  Chapter 3- Applicability
What are the requirements if I don't use any organic HAP  in my
PMPU?

If you own or operate a PMPU that's part of an affected source but don't use or manufacture any
organic HAP during production, your affected source is only subject to the requirements in
Table 2.
     Table 2.  Requirements for Process Units without Organic HAP Emissions
 If your PMPU does not use or manufacture
 organic HAP to produce polyether polyols,
 then you must comply with either Column 1 OR
 Column!. [§63.1420(b)(l)]
If your PMPU uses or manufacturers organic HAP
in the production of polyether polyols, but your
facility uses a HAP that is not an organic HAP
in the production of a polyol that is not a
polyether polyol non-organic HAP in the
production of a non-polyether polyol,  then you
must comply with either Column 1 OR Column 2
during the production of the non-polyether polyol
product that doesn't use or manufacture organic
HAP. [§63.1420(b)(2)]
                 Column 1
                Column 2
 Retain the information, data, and analyses you
 used to determine why the PMPU doesn't use or
 manufacture any organic HAP.  This
 documentation could include records of
 chemicals purchased for the process, analyses of
 the process composition, engineering
 calculations, process knowledge, etc.
Demonstrate that the PMPU doesn't use or .
manufacture any organic HAP when requested to
do so by the Administrator.
Products or raw materials containing organic HAP as impurities aren't considered organic HAP for the
purposes of determining if your affected source uses organic HAP in the PMPU process. [§63.1420(b)]
                                         12

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                                                                     Chapter 3- Applicability
                 Does this rule  apply to me?
Definition  "Organic HAP" includes all of the following chemicals, or any other chemical, if they're
knowingly produced/ introduced into the polyether polyol manufacturing process (that is, not an
impurity). It also includes chemicals listed in Table 2 of 40 CFR part 63, subpart F in the HON.
[§63.1423 and Table 4 of subpart PPP]
            1,3 Butadiene (CAS 106990)
            Epichlorohydrin (CAS 106898)
            Ethylene oxide (CAS 75218)
            n-Hexane (CAS 110543)
            Methanol (CAS 67561)
            Propylene oxide (CAS 75569)
            Toluene (CAS 108883)
An impurity is a substance that is produced coincidentally with the primary product, or is present in a raw
material. An impurity does not serve a useful purpose in the production or use of the primary product and
is not isolated. [§63.1423]

CAS = Chemical abstracts service registry number.
                                           13

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                                                              Chapter 3 - Applicability
                   Primary Product Determination

This section describes how you'll determine if your PMPU produces polyether polyols as a
primary product.  Your facility is subject to Subpart PPP if it's a major source of HAPs and it
contains a group of one or more process units that manufacture polyether polyols as their
primary product.

What do we mean by "primary product"?

Many process units used to produce polyether polyols can also be used to produce other
polymers or products. Only process units that predominantly manufacture polyether polyols are
covered under subpart PPP.

Subpart PPP requires that you look at each of your process units to determine if polyether
polyols are your "primary product" at these process units. If they are, your process unit is a
PMPU and is subject to Subpart PPP.

However, if you change the primary product of a PMPU from a polyether polyol to a product
that's subject to another NESHAP, the process unit may then be subject to the other NESHAP,
and not to Subpart PPP. This process is described in §63.1420(e)(10).

How do I determine my  primary product?

We've included several figures to help you determine if you produce polyether polyols as your
primary product.  The figures will help you  do an initial determination of whether each process
unit has  polyether polyols as a primary product and is subject to Subpart PPP. They will also
help you understand whether Subpart PPP applies if you later start to produce polyether polyols
at a process unit that was not previously covered or if you stop producing polyether polyols in
the future.

Figure 2 illustrates the procedures you'll follow to determine the primary product at existing and
new sources. If you anticipate starting polyether polyol production at a process unit that isn't a
PMPU, determine if it is a PMPU by using  Figure 2.

Subpart PPP also addresses changes in production trends.  Figure 3 shows the procedures for
evaluating non-PMPUs that have recently produced polyether polyols.  Figure 4 illustrates your
procedures for determining if a PMPU is still subject to subpart PPP based on recent production
and your future plans for production.
                                        14

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                                                         Chapter 3 - Applicability
                 Primary Product Determination

What requirements must I meet if my process unit is a PMPU?

If your PMPU manufactures polyether polyols as its primary product, it's considered a PMPU
and subject to Subpart PPP. Your requirements for PMPUs are discussed later in this document.

What if my process unit isn't a PMPU?

If your PMPU doesn't manufacture polyether polyols as its primary product, it isn't considered a
PMPU and isn't subject to Subpart PPP.  If you determine that a process unit isn't subject to this
subpart, maintain all the information, data, and analyses that you used to determine that the
process unit isn't a PMPU.  As an alternative to keeping records, you may demonstrate that the
process unit isn't a PMPU when requested to do so by the Administrator. [§63.1420(e)(8)]

What are my requirements if my PMPU stops producing
polyether polyols?

If your PMPU stops the production of polyether polyol and you don't anticipate the production
of a polyether polyol in the future, your process unit is no longer a PMPU and isn't subject to
Subpart PPP after notification is made to the Administrator. In your notification, include a
rationale for why you anticipated that no polyether polyol will be produced in the process unit in
the future. [§63.1420(e)(9)]
                                     15

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                    Figure 2.  Primary Product Determination
  Do you make
 more than one
 product at this
  process unit?
  §631420(6X1)
                                     Is the product
                                      a polyether
                                       polyol?
                                     §63 1420(6X1X0
                                         &('V)
                                                                                 Was
                                                                              a polyether
                                                                            polyol produced
                                                                           5% or more of the
                                                                           total operating time
                                                                          since 9/4/97 (existing
                                                                          sources), or any time
                                                                             in the first year
                                                                             (new sources)?
                                                                            §63 1420(eX2XnXA)
                                                                                 or(B)
   You have a
   flexible unit
operation Can yo
  determine the
primary product for
  the 5-yr period
 beginning 9/4/97?
  §631420(eK1X'l')
   Do you
 make more
  than one
product at the
 same time?
§631420(eX1X'0
   Can you be
sure that a polyether
 polyol won't be the
 primary product?
   §63 1420(6X2X0
              Does
         a polyether polyol
         have, or share with
        another product, the
          greatest annual
         design capacity?
         §631420(eX1X"XA)
             Of(B)or
            (eX1X"'XA)
              or(B)
                                                                        Not a PMPU
                                                                          and not
                                                                         subject to
                                                                        subpart PPP
                                                                        at this time
                                                                       §63 1420(eX1X>v)
     Process unit is a
     PMPU & is subject
     to subpart PPP
      §63 1420(6X1 X'V)
A 1-yr projection is required for new process units
                                                        16

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                                                               Chapter 3 - Applicability
                        Flexible Operation Unit

This section describes the requirements for flexible operation units.


What is a flexible operation unit?

A flexible operation unit is a process unit that manufactures different chemical products by
periodically alternating the raw materials fed into the process unit or alternating the operating
conditions at the process unit.  These units are also sometimes called campaign plants or blocked
operations. Under Subpart PPP, a flexible operation unit is a process unit that sometimes
produces polyether polyols and sometimes produces other products.  [§63.1420(e)(5)]

Are  my flexible operating  units subject to Subpart PPP?

If you are producing polyether polyols as your primary product (see Figure 2). your flexible
operating unit is subject to Subpart PPP. Your flexible operation unit isn't required to comply
with Subpart PPP when it is producing any of the following products. [§63.1420(e)(5)(iv)]

    •   products in which no organic HAP is used or manufactured, if you are complying with
       §63.1420(b)(2) [that is, requirements for PMPUs without organic HAP ]

    •   products that make the process unit subject to 40 CFR part 63, Subpart GGG (that is,
       Pharmaceuticals Production NESHAP)

You must  designate which process units are flexible operation units and whether they are subject
to Subpart PPP in your Notification of Compliance Status. [§63.1420(e)(l)(iii);
§63.1439(d)(5)(iii)]. If you designate a flexible operation unit as not subject to subpart PPP, you
must re-evaluate whether it is subject to subpart PPP annually, beginning June 1, 2004.  Figure 3
describes this annual redetermination process.

Some flexible unit operations that are initially subject to subpart PPP may stop being subject to
subpart PPP. To determine whether your flexible operation unit is still subject to subpart PPP,
see Figure 4.  If you terminate production of all polyether polyols, and you have notified the
Administrator, the process unit is no longer subject to Subpart PPP.[§63.1420(e)(3) and (9)]
                                          17

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                         Flexible Operation Unit
                                                                  Chapter 3 - Applicability
What are the requirements for flexible operation units?

If the flexible operation unit is not using organic HAP, you must meet the requirements in
Table 2.  If the flexible operation unit is subject to the pharmaceutical MACT [40 CFR part 63,
Subpart GGG], you do not have any requirements under Subpart PPP. Otherwise, you must
comply with the control device and monitoring requirements in §63.1420(e)(i) - (e)(iii) of
Subpart PPP, which are described in Table 3.  These requirements vary according to whether
you are producing polyether polyols or not.
                   Table 3.  Requirements for Flexible Operating Units*
                   Producing polyether polyol
                                 Not producing polyether polyol
 Control
 Requirements
comply with all applicable
provisions in Subpart PPP
[§63.1420(e)(5)(i)(A)]
continue to operate any existing
combustion, recovery, or recapture devices
required for compliance during the
production of polyether polyols

if you use extended cookout (ECO) as your
control technique for epoxide emission
reduction and the non-polyether polyol
being produced uses epoxide monomers,
continue to use the ECO or an equivalent
control technique [§63.1420(e)(5)(i)(B)]
 Monitoring        establish a single parameter
 Requirements     monitoring level for each parameter
                   at each device that requires
                   monitoring under Subpart PPP. Do
                   this by following §63.1438(a). Your
                   parameter monitoring is based on
                   the emission point and control
                   techniques used while polyether
                   polyols are produced
                   [§63.1420(e)(5)(ii)(A)]
                   monitor each parameter at each
                   device that requires monitoring
                   under Subpart PPP
                   [§63.1420(e)(5)(ii)(B)J
                                 monitor each parameter at each device that
                                 requires monitoring under Subpart PPP
                                 [§63.1420(eX5Xii)(B)]
"These requirements do not apply if the flexible operation unit is not using organic HAP or if the flexible
operation unit is subject to Subpart GGG. As for other process units, the requirements do not apply unless
the flexible operation unit is making a polyol as a primary product.
                                           18

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Figure 3.  Annual Redetermination for Non-PMPU Flexible Operation Units
                             (Beginning June 1, 2004)
      Was a polyether polyol
          rimary |
          le last 5
                              No
                                                  Do you anticipate making a
                                                 ^polyether polyol in the future?
                                                       3 1420(e)(3)o<(
                                                             Yes
                                                     Determine primary
                                                    product (see FigureZ)
                                                       $63 1420
                                           19

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               Figure 4.   Redetermination for PMPUs Acting
                           as Flexible Operation Units
                                   §63.1420(e)(10)
      Did you make a process
     change that could cause a
     polyether polyol to no longer
      be your primary product'
          §63 1420(6X10)
No
  Re-evaluate the primary product
       of the process unit
         §63 1420(6X10}
     Is your primary product a
        polyether polyoP
         §63 1420(eX10)
       Are you subject to another
             MACT"?*
               Yes
                                      Not a PMPU anymore,
                                      and no longer subject to
                                      subpart PPP. You must
                                      submit a notification of
                                         the change in
                                        applicability to the
                                         Administrator
                                                                     The process unit remains
                                                                            subject
                                                                       to the requirements
                                                                         of subpart PPP
                                                                         $631420(6X10)
• With the exception of 40 CFR 63, subpart GGG (Pharmaceutical MAC!)
                                                20

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                                                                Chapter 3 - Applicability
                Existing and New Affected Sources


What is an existing affected source?

If a source is not a new affected source, it is an existing affected source.

What is a new affected source?

A new affected source is an affected source that meets any of the following criteria.

    •   Greenfield site. A facility without organic HAP emissions before 9/4/97 that
       commenced construction on a group of one or more PMPUs and associated equipment
       after 9/4/97 and is located at a facility that's a major source as defined in §63.2 of the
       General Provisions. [§63.1420(a)(3)(i)]

    •   Addition of a new PMPU. A PMPU may be added by constructing or reconstructing a
       process unit to produce polyether polyols, or a PMPU may be added due to changes in
       production such that the polyether polyol becomes the primary product of a non-PMPU
       process unit.
       You've added a new PMPU if you commenced construction on a group of one or more
       PMPUs (and associated equipment) after 9/4/97 and your PMPU meets at least one of
       the following criteria:  [§63.1420(a)(3)(ii), §63.140(g)(l)(i) (A)]
       »•      the new process unit has potential to emit 10 tons per year (tpy) or more of any
              organic HAP or 25 tpy of any combination of organic HAP, and polyether
              polyols are currently produced as a primary product at an affected source on the
              facility (that is, new unit emits organic HAP at major source levels)
              [§63.1420(g)(l)(i)(B)]
       *•      the new process unit will be installed at a facility that doesn't currently produce
              polyether polyols as its primary product, and the facility emits (or has the
              potential to emit after construction) HAPs greater than the major source
              threshold as defined in §63.2 of the General Provisions (that is, facility emits
              any HAP at major source levels) [§63.1420(g)(l)(i)(C)j

    •   Replacing components. If you've replaced any components of an existing source and
       the replacement meets the definition of reconstruction and reconstruction commenced
       after 9/4/97 [§63.140(g)(2)(i)(A-B)].


Addition of a new PMPU may occur if a process unit is constructed or reconstructed after 9/4/97.
                                         21

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                                                                     Chapter 3 - Applicability
                 Existing and New Affected Sources
              Definition. Reconstruction means the replacement of components of an affected
              source or of a previously unaffected stationary source that becomes an affected
              source as a result of the replacement, to such an extent that: (1) The fixed capital
              cost of the new components exceeds 50 percent of the fixed capital cost that
              would be required to construct a comparable new source; and (2) It is
              technologically and economically feasible for the reconstructed source to meet
              the provisions of this subpart.

              Note: To determine -whether the fixed capital cost of the new components exceeds
              50 percent, the equivalent capital cost shall be the entire potentially affected
              source [§63.1420(g)(2)(i)(A)].
However, if you have an addition or a process change that does not replace components but
that creates one or more Group 1 emission points (new Group 1 emission points or Group 2
emission points become Group 1), they are part of the existing affected source.
[§63.1420(g)(2)(ii)].

What types of changes are "process changes"?

Under §63.1420(g), a process change includes, but isn't limited to, any of the following.
[§63.1420(g)(3)]

    •    additions to process equipment that result in a change in capacity to produce

    •    production of a product outside the scope of the initial compliance demonstration

    •    replacement, removal, or addition of recovery equipment

A process change doesn't include any of the following. [§63.1420(g)(3)]

    •    process upsets and unintentional temporary process changes

    •    changes that do not alter equipment configuration and operating conditions
                                           22

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              Chapter 4-  Determining  Group Status
What does this chapter cover?

This chapter describes how group status is defined for specific emission points. Under Subpart
PPP, you'll be required to determine the group status of some emission points. Different
requirements apply to Group 1 and Group 2 emission points.  Often, the only requirements for
Group 2 emission points involve monitoring, setting parameter monitoring levels, and
recordkeeping and reporting. Specific requirements for each type of emission point will be
discussed in individual chapters later in this document.

When must I determine Group  1 or Group 2 status?

Under Subpart PPP, you must determine the group status for all of the following types of
emission points.

    •   continuous process vents associated with the use of a nonepoxide organic HAP to make
       or modify a polyether polyol product
    •   combinations of batch process vents associated with the use of a nonepoxide organic
       HAP to make or modify a polyether polyol product

    •   storage vessels
    •   wastewater streams
What is a Group 1 continuous process vent?

A Group 1 continuous process vent is a process vent from a continuous unit operation that's
associated with the use of a nonepoxide organic HAP to make or modify the product, and meets
all of the following criteria.

   •   has a flow rate greater than or equal to 0.005 standard cubic meters per minute (scmm)

   •   has a total organic HAP concentration greater than or equal to 50 parts per million by
       volume (ppmv)

   •   has a total resource effectiveness (TRE) index value less than or  equal to 1.0
                                      23

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                                                       Chapter 4 - Determining Group Status
                Definition. Continuous unit operation means a unit operation where the
                inputs and outputs flow continuously. Continuous unit operations typically
                approach steady-state conditions. Continuous unit operations typically
                involve the simultaneous addition of raw material and withdrawal of the
                product.
What is a Group 2 continuous process vent?

A Group 2 continuous process vent is a process vent from a continuous unit operation that's
associated with the use of a nonepoxide organic HAP to make or modify the product, and isn't a
Group 1 continuous process vent.

What is a Group 1 storage vessel?

A Group 1 storage vessel is a storage vessel from an existing or new affected source that meets
any of the following criteria.

   •   has a capacity greater than or equal to 75 cubic meters and less than 151 cubic meters,
       and its vapor pressure is greater than or equal to 13.1 kilopascals
   •   has a capacity greater than or equal to 151 cubic meters, and its vapor pressure is greater
       than or equal to 5.2 kilopascals

What is a Group 2 storage vessel?

A Group 2 storage vessel is a storage vessel from an existing or new affected source that doesn't
meet the definition of a Group 1 storage vessel.

What is a Group 1 wastewater stream?

A Group 1 wastewater  stream is a process wastewater stream at an existing or new affected
source that meets any of the following criteria.

   •   has a total annual average concentration of organic HAP that is greater than or equal to
       10,000 parts per million by weight (ppmw)
   •   has a total annual average concentration of organic HAP that is greater than or equal to
       1,000 ppmw and an annual average flow rate greater than or equal to 10 liters per minute
                                         24

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                                                      Chapter 4 - Determining Group Status

What is a Group 2 wastewater stream?

A Group 2 wastewater stream is a process wastewater stream at an existing or new affected
source that doesn't meet the definition of a Group 1 wastewater stream.

What is a Group 1 combination of batch  process  vents?

A Group 1 combination of batch process vents is a collection of process vents in a PMPU from
batch unit operations that's associated with the use of a nonepoxide organic HAP to make or
modify the product, and meets all of the following criteria.
               Definition. Batch unit operation means a unit operation involving
               intermittent or discontinuous feed into equipment, and, in general, involves
               the emptying of equipment after the batch cycle ceases and prior to
               beginning a new batch cycle. Mass, temperature, concentration and other
               properties of the process may vary with time. Addition of raw material and
               withdrawal of product do not simultaneously occur in a batch unit
               operation.
    •   has annual nonepoxide organic HAP emissions of 11,800 kg/yr or more

    •   has a cutoff flow rate that is greater than or equal to the annual average flow rate

What is a Group 2 combination of batch process vents?

A Group 2 combination of batch process vents is a collection of process vents in a PMPU from
batch unit operations that is associated with the use of a nonepoxide organic HAP to make or
modify the product, and that isn't a Group 1 combination of batch process vents.
                                        25

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      Chapter  5 -  Startup, Shutdown, Malfunctions and
                                   Non-Operation

Wha* does this chapter cover?

This chapter contains information about requirements for startup, shutdown, malfunction, and
non-operation. It has two sections.


        Startup, Shutdown,        Subpart PPP has special provisions when you
        Malfunction, and Non-  '   °Penfe your emi™ Point d,±lstartup'
                                        shutdowns and malfunctions (SSM) or when your
          "                             emission point isn't operating.  This section
                                        describes the procedures you'll follow while
                                        operating under these conditions.

        Startup  Shutdown and   This section describes the requirements for SSM
        Malfunction Plans '        plans (SSMP)
             Definition. Startup means the setting into operation of an affected source, a PMPU
             within the affected source, a waste management unit or unit operation within an
             affected source, equipment required or used to comply with this subpart, or a storage
             vessel after emptying and degassing. For all processes, startup includes initial startup
             and operation solely for testing equipment. Startup doesn't include the recharging of
             batch unit operations. For continuous unit operations, startup includes transitional
             conditions due to changes in product for flexible operation units. For batch unit
             operations, startup doesn't include transitional conditions due to changes in product
             for flexible operation units.

             Shutdown means the cessation of operation of an affected source, a PMPU within an
             affected source, a waste management unit or unit operation within an affected source,
             equipment required or used to comply with this subpart, or the emptying or degassing
             of a storage vessel. The purposes for a shutdown may include, but aren't limited to,
             periodic maintenance, replacement of equipment, or equipment repairs. Shutdown
             doesn't include the normal periods between batch cycles.. For continuous unit
             operations, shutdown includes transitional conditions due to changes in product for
             flexible operation units. For batch unit operations, shutdown doesn't include
             transitional conditions due to changes in product for flexible operation units. For
             purposes of the wastewater provisions, shutdown doesn't include the routine rinsing
             or washing of equipment between batch cycles.
                                             26

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                                 Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
Startup, Shutdown,  Malfunction, and Non-operation


What if my PMPU isn't operating?

Non-operation means an action that results in the cessation of the emissions to which this subpart
applies. [§63.1420(h)(l)] Except as provided below, emission limits under Subpart PPP do not
apply when you are not operating your affected source (or specific portion thereof).

If you're subject to the emission limit for equipment leaks under 40 CFR part 63, Subpart H (that
is, the HON Equipment Leak provisions), as referenced under §63.1434, you must comply with
§63.1434 at all times except during periods of non-operation where lines are drained and
depressurized and that action results in the cessation of the emissions subject to §63.1434.
[§63.1420(h)(2)]

In some cases, you're subject to Subpart PPP even during non-operation. See "Are there times
when I must follow Subpart PPP even if I have a SSM or period of non-operation?" for further
details.

Am I subject during Startup,  Shutdown, and Malfunction?

Except as identified below, emission limits under Subpart PPP do not apply during periods of
SSM as long as the affected source follows the provisions in its startup, shutdown and
malfunction plan (SSMP), as required under §63.6(e)(3) of the General Provisions.
[§63.1420(hXl)l

If you're subject to the emission limit for equipment leaks under 40 CFR part 63, Subpart H (that
is, the HON Equipment Leak provisions), as referenced in §63.1434, you must comply with
§63.1434 at all times except during periods of SSM or process unit shutdown where lines are
drained and depressurized and that action results in the cessation of the emissions subject to
§63.1434. [§63.1420(h)(2)]

In some cases, you're subject to Subpart PPP even during SSM. See "Are there times when I
must follow Subpart PPP even if I have a SSM or period of non-operation?" for further details.

What requirements must I follow during SSMs?

If you're operating during periods of SSM and emission limits under Subpart PPP don't apply,
you must take steps to prevent or minimize excess emissions to the extent practical. The
measures you'll take to reduce emissions during SSM must be identified in your SSMP.
Measures include, but aren't limited to: air pollution control technologies, recovery technologies,
work practices, pollution prevention, monitoring, and changes in the manner you operate the
                                       27

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                                 Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
Startup, Shutdown,  Malfunction,  and  Non-operation

affected sources. Use of back-up control techniques isn't required, but is allowed, if applicable.
[§63.1420(h)(4)]

Would I  ever follow Subpart PPP during SSM  or non-operation?

If one part of your affected source has a SSM or period of non-operation that doesn't affect the
ability of an emission point to comply with the emission limit to which it's subject, then you
must comply with the emission limit for that emission point even during the SSM or period of
non-operation.
                    Example. The degassing of a storage vessel would not affect
                    the ability of a process vent to meet the emission limitations
                    for process vents in §63.1425 - 63.14301.
Also, you can't shutdown items of equipment during SSM if emissions are routed to that
equipment and the equipment is required or used for compliance with Subpart PPP and the
shutdown would prevent the equipment from meeting applicable requirements. However, you
can shutdown equipment (other than monitoring systems) if it's malfunctioning or it will be
damaged due to a concurrent SSM of the affected source or portions thereof.  [§63.1420(h)(3)J

If you believe that monitoring equipment would be damaged if you don't shut it down during a
SSM of the affected source, you must document why in the Precompliance Report or in a
supplement to the Precompliance Report, as required under §63.1439(e)(4). You must get the
Administrator's approval before you have permission to stop collecting monitoring data during a
SSM.  Once approved by the Administrator, you must incorporate these provisions into your
SSMP for that  affected source.  [§63.1420(h)(3)] Then you can stop collecting monitoring data
if you have a SSM.
                                       28

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                                  Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
           Startup, Shutdown, and Malfunction Plans

Emission limits under Subpart PPP apply at all times except during periods of SSM as long as
the affected source follows the provisions in its SSMP. This section provides an overview of
what a SSMP is and what it should contain.

What is a Startup, Shutdown and  Malfunction Plan?

The purpose of the plan is to demonstrate how you'll do your best to maintain compliance with
Subpart PPP, even during SSM.  The plan will help you operate your affected source during
these periods by identifying how you'll do all of the following.

    •   Operate and maintain your affected source in a manner that's consistent with good air
       pollution control practices, and, which minimize excess emissions during startup,
       shutdown and malfunction. [§63.1420(h)(4)]

    •   correct malfunctions as soon as practicable after their occurrence to minimize emissions.
       [§63.6(e)(3)(i)(B)]
                Definition Excess emissions means emissions greater than those
                allowed by the emissions limitation which would apply during
                operational periods other than start-up, shutdown, and malfunction.
When must I develop my  SSMP?

You must develop your SSMP, which is due by the source's compliance date [§63.6(e)(3)(i)J.
See Table 1 for compliance dates for new and existing sources.

What information should my  SSMP contain?

For the purposes of Subpart PPP, you should have a plan that covers the affected source (that is,
each PMPU and associated equipment). If you're subject to the equipment leak provisions under
§63.1434, your SSMP is limited to combustion, recovery, or recapture devices and is optional for
other equipment. In addition, SSMPs aren't required for Group 2 emission points. [Subpart
PPP, Table 1, §63.6(e), §63.6(e)(3)(i)]
                                        29

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                                  Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
           Startup, Shutdown, and Malfunction Plans

Your plan should provide a detailed description of all the following:

    •  procedures you'll follow for operating and maintaining the source during periods of
       SSM. [§63.1439(b)(l), §63.6(e)(3)(i)]  Your SSMP may also include written procedures
       that identify conditions that justify a delay of repair. [Subpart PPP, Table 1]

    •  a program of corrective action you'll implement for the malfunctioning process and air
       pollution control equipment used to comply with the standard. [§63.1439(b)(l),
       §63.6(e)(3)(i)]

    •  any provisions approved by the Administrator that allows you to cease the collection of
       monitoring data during a SSM that would  otherwise be required by Subpart PPP.
       [§63.1420(h)(3), §63.1439(b)(l)]

A standard operating procedures (SOP) manual, or an Occupational Safety and Health
Administration (OSHA) manual or other plan can  be used to satisfy the requirements for writing
a plan as long as the plan meets all requirements above. [§63.6(e)(3)(vi)]

Who sees my SSMP and how  long do I  keep it?

Your SSMP must be retained on site and available for inspection for the life of the affected
source or until the source is no longer subject to Subpart PPP. If you revise your plan, you must
make the previous version available for inspection for 5 years after each revision.
[§63.1439(b)(l)]

Do I have to modify my SSMP periodically?

You must modify your SSMP if the Administrator asks you to or if you have a malfunction that
your existing plan doesn't identify. The Administrator (that is, the EPA or a State, local, or tribal
agency that has been delegated the authority to implement these provisions) can require you to
make changes to the plan if the plan:

    •  doesn't address a SSM event that has occurred [§63.6(e)(3)(vii)(A)]
       fails to provide for the operation  of the source during a SSM event in a manner
       consistent with air pollution control practices to minimize emissions to at least the levels
       required by the standard [§63.6(e)(3)(vii)(B)]
    •  does not provide adequate procedures for correcting the malfunctioning process or air
       pollution control equipment as quickly as practical [§63.6(e)(3)(vii)(C)]
                                         30

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                                   Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
            Startup, Shutdown, and Malfunction Plans

If your plan fails to address (or inadequately addresses) an event that meets the characteristics of
a malfunction, revise your plan within 45 days after the event to include procedures for operating
and maintaining the source during similar malfunction events. [§63.6(e)(3)(vii)]


Do I have to maintain any records when  operating under my
SSMP?

When operating under your SSMP, you must keep all of the following records (including all
reports and notifications).

    •   occurrence and duration of each SSM of process equipment or combustion, recovery, or
       recapture devices or continuous monitoring systems used to comply with Subpart PPP
       where excess emissions occur.  [§63.1439(b)(l)(i)(A)]

    •   each period during which a CMS is malfunctioning or inoperative (including out-of-
       control periods) [§63 .10(b)(3)(vi)]

In addition, records are required for SSMs where excess emissions occurred.  The type of
records you'll keep depend on whether the actions you took were consistent, or inconsistent
with your SSMP:  [§63.1439(b)(l)(i)(B)]

    •   if the actions you took are consistent with procedures outline in the plan, keep records
       for that event that demonstrate that you followed the procedures specified in your plan.

    •   if the actions you took aren't consistent with procedures outlined in your plan, keep
       records on the actions taken for that event.
                Example: If you have a startup, shutdown or malfunction and your SSMP
                includes procedures for routing a combustion, recovery, or recapture device to
                a backup system, keep records of whether the plan was followed.
Checklists or other effective forms of recordkeeping that show compliance with your SSMP are
acceptable.
                                         31

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                                  Chapter 5 - Startup, Shutdown, Malfunction, and Non-operation
           Startup, Shutdown, and Malfunction Plans


Do  I have to submit any reports when I operate under my SSMP?

If you have a SSM, you must submit a semiannual SSM report. You'll submit your semiannual
report on the same schedule as your other periodic reports required under §63.1439(e)(6).
[§63.1439(b)(l)(ii), §63.10(d)((5)(i)j

The information you must submit in your semiannual report will depend on whether the actions
you took were consistent or inconsistent with your SSMP. [§63.1439(b)(l)(ii), §63.10(d)(5)(i)]

   •   If the actions you took are consistent with procedures outline in your plan, state such
       information in a startup, shutdown, and malfunction report for the semiannual reporting
       period. You'll submit your semiannual malfunction reports by letter and include all of
       the following information: [§63.10(d)(5)(i)]

          >•   name of owner/operator

          ••   title
          >•   signature of owner/operator or other responsible official

          *•   statement that actions taken are consistent with the plan

   •   If actions you took aren't consistent with procedures you outlined in your plan, state
       such information in a startup, shutdown, and malfunction report for the semiannual
       reporting period. You'll  submit your semiannual malfunction reports by letter and
       include all of the following information: [§63.10(d)(5)(i)]

          ••   name of owner/operator

          ••   title

          *•   signature of owner/operator or other responsible official
          >•   explanation of the circumstances of the event
          >   actions you took that weren't consistent with the plan [§63.1439(b)(l)(ii)]
          *•   the reasons for not following the plan

          »•   whether any excess emissions and/or parameter monitoring exceedances are
              believed to have occurred
                                        32

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                        Chapter 6 -  Process Vents
What does this chapter cover?


This chapter covers the requirements that apply to all types of process vents, except process
vents producing (tetrahydrofuran) THF and Group 2 process vents.


What is a process vent?


             Definition. Process vent means a point of emission from a unit operation having
             a gaseous stream that is discharged to the atmosphere either directly or after
             passing through one or more combustion, recovery, or recapture devices. A
             process vent from a continuous unit operation is a gaseous emission stream
             containing more than 0.005 weight-percent total organic HAP. A process vent
             from a batch unit operation is a gaseous emission stream containing more than
             225 kg per year (500 pounds per year) or organic HAP emissions. Unit
             operations that may have process vents are condensers, distillation units, reactors,
             or other unit operations within the PMPU. Process vents exclude pressure relief
             valve discharges, gaseous streams routed to a fuel gas system, and leaks from
             equipment regulated under §63.1434.
What process vents does Subpart PPP cover?

There is one set of process vent control requirements for sources producing polyether polyols
using epoxides and another set of process vent control requirements for sources producing
polyether polyols using THF.

If you use an epoxide to produce polyether polyols and also use nonepoxide organic HAP to
modify your product or for catalyst extraction you'll have additional vent control requirements.
If you use nonepoxide organic HAP to make or modify your product, your requirements will
vary depending on whether the combination of process vents is Group 1 or Group 2.  If you are
producing polyether polyols using epoxides and you are using extended cookout to reduce
epoxide emissions or maintain an emission factor , there are also additional requirements.

Figure 5 summarizes the various process vent requirements in Subpart PPP and shows how they
relate to each other.
                                          33

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         Figure 5. Illustration of Different Types of Polyether
Polyols Production Plants and the Applicable Control Requirements
                             for Process Vents
          Plants that produce
        polyether polyols using
        tetrahydrofuran (THF)
       Plants that produce polyether
         polyols using epoxides
              163.1425(b)|
                        Control Requirements
      Comply with the Hazardous
   Organics NESHAP (HON) process
     vent requirements in sections
      63.113 through 63.118, with
   the exceptions noted in b? 142?( I").
  At new affected sources, reduce total epoxide
     emissions by 99.9%, maintain an outlet
  concentration of total epoxides or TOC of 20
  ppmv or less, or maintain an emission factor
  of 4.43 x 10-3 kilogram epoxide emissions per
    megagram of product (pounds of epoxide
  emissions per 1000 pounds of product) or less,
   using a combustion, recovery, or recapture
          device, or ECO 163.1427 j.

    At existing affected sources, reduce total
  epoxide emissions using a flare, reduce total
  epoxide emissions by 98%, maintain an outlet
  concentration of total epoxides or TOC of 20
 ppmv or less, or maintain an emission factor of
  1.69 x 10-2 kilogram epoxide emissions per
    megagram of product (pounds of epoxide
  emissions per 1000 pounds of product) or less,
usinga combustion, recovery, or recapture device,
             or ECO 163.1427!.
   If you ALSO use NONEPOXIDE organic
        HAP to make or modify the
  polyether polyol product, you are subject to
        the control requirements in
          63.1425(c)and 63.1428.
          If you ALSO use NONEPOXIDE
         organic HAP for catalyst extraction,
           you are subject to the control
            requirements in 63.1425(d).
                                          34

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                                                                 Chapter 6 - Process Vents

Are there other requirements for process vents?

In addition to the requirements in this chapter, there are more requirements for the various types
of process vents. Table 4 explains where you will find those requirements.
                  Table 4. Process Vent Requirements in Subpart PPP
If you are producing polyether   Then you must also
polyols using...
                                                                     Find these
                                                                     requirements
                                                                     in...
 epoxides
                                meet the epoxide emission limits in
                                §1425(b)
Chapter 8
 epoxides and using nonepoxide
 organic HAP to make or modify the
 product
                                meet the epoxide emission limits in       Chapter 8 and
                                § 1425(b) and meet the nonepoxide        Chapter 9
                                organic HAP emission limits in §1425(c)
 epoxides and using nonepoxide
 organic HAP to make or modify the
 product and you have a Group 2
 combination of process vents
                                meet the requirements in §1428
Chapter 8 and
Chapter..9
 epoxides and using nonepoxide
 organic HAP during catalyst
 extraction
                                meet the epoxide emission limits in       Chapter 8 and
                                § 1425(b) and meet the nonepoxide        Chapter 10
                                organic HAP emission limits in §1425(d)
 epoxides and you are using extended
 cookout to reduce epoxide emissions
 or maintain an emission factor
                                meet the emission limits  in
Chapter 8 and
Chapter 11
                                §1425(b)(2)(ii), or §1425(b)(2)(iv) and
                                meet the requirements in §1427
 tetrahydrofuran (THF)
                                meet the emission limits in § 1425(f)
Chapter 7
What are my monitoring installation and operation
requirements?
For all process vents except THF and Group 2 process vents, you must install and operate
monitoring equipment according to the requirements in §63.1429, which are summarized in
Table 5. All monitoring equipment must be installed, calibrated, maintained, and operated
according to the manufacturers' specifications or other written procedures that provide adequate
assurance that the equipment would reasonably be expected to monitor accurately. [§63.1429(a)J
                                         35

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                  Table 5. Monitor Installation and Operation Requirements for Process Vent Control Devices
Control Device
                Monitor Installation and Operation
       Parameter(s) to Monitor
Each Process Vent
System with bypass lines
that could divert
emissions away from the
combustion, recovery or
recapture device and to
the atmosphere*
Install, maintain, and operate a flow indicator that takes a reading at least
once at approximately equal intervals of about 15 minutes. Flow
indicator must be installed at the entrance to any bypass line that could
divert emissions away from the combustion, recovery or recapture device
and to the atmosphere. [§63.1429(c)(l)]
                           OR
flow
                           Secure the bypass line valve in the non-diverting position with a car-seal
                           or a lock-and-key type of configuration, and visually inspect the seal or
                           closure mechanism at least once every month, to ensure that the valve is
                           maintained in the non-diverting position and that emissions are not
                           diverted through the bypass line.  [§63.1429(c)(2)]
                                                                    valve position and emission route
Thermal Incinerators,
Boilers, and Process
Heaters**
Equip with a temperature monitoring device with a continuous recorder in
a position before any substantial heat exchange occurs.
[§63.1429(a)(l)(i)]
Firebox temperature
Catalytic Incinerator
Equip with temperature monitoring devices with continuous recorders in
the gas stream immediately before and after the catalyst bed
[§63.1429(a)(l)(ii)]
Temperature upstream of catalyst bed
AND
Temperature downstream of catalyst bed
AND
Temperature difference across catalyst
bed
Flare
Install a device (including, but not limited to, a thermocouple, ultra-violet
beam sensor, or infrared sensor) capable of continuously detecting the
presence of a pilot flame. [§63.1429(a)(2)J
Presence of a flame at the pilot light.
                                                                 36

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                  Table 5. Monitor Installation and Operation Requirements for Process Vent Control Devices
Control Device
                Monitor Installation and Operation
       Parameter(s) to Monitor
Absorbers (Batch Vents)
Install a scrubbing liquid flow rate meter equipped with a continuous
recorder or a pressure monitoring device equipped with a continuous
recorder.  If you use an acid or base absorbent, you must also install a pH
monitoring device, to monitor scrubber effluent
If you use two or more absorbers in a series, you must install a scrubbing
liquid flow rate meter, or a pressure monitoring device that's equipped
with a continuous recorder, on each adsorber in the series.  You may
submit a request to the Administrator to install the scrubbing liquid flow
rate meter, or pressure monitoring device on only the final absorber in a
series by following §63.1429(a)(4) and §63.1439(f). [§63.1429(a)(4)]
Liquid flow rate into scrubber OR
Liquid flow rate out of scrubber OR
Pressure drop across scrubber
                                                                                                If using acid or base absorbent, also
                                                                                                scrubber effluent.
Absorbers (Continuous
Vents)
Install a scrubbing liquid flow rate meter equipped with a continuous
recorder or a pressure monitoring device equipped with a continuous
recorder.  If you use an acid or base absorbent, you must also install a pH
monitoring device, to monitor scrubber effluent
If you use two or more absorbers in a series, you must install a scrubbing
liquid flow rate meter, or a pressure monitoring device that's equipped
with a continuous recorder, on each adsorber in the series.  You may
submit a request to the Administrator to install the scrubbing liquid flow
rate meter, or pressure monitoring device on only the final absorber in a
series by following §63.1429(a)(4)  and §63.1439(f). [§63.1429(a)(4)]
Exit temperature of absorbing liquid
AND exit gravity of absorbing liquid
                                                                                                If using acid or base absorbent, also
                                                                                                scrubber effluent.
Condensers
Install condenser exit temperature (product side) monitoring device
equipped with a continuous recorder. [§63.1429(a)(5)]
Exit temperature (product side)
                                                                 37

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                   Table 5. Monitor Installation and Operation Requirements for Process Vent Control Devices
 Control Device
                Monitor Installation and Operation
       Parameter(s) to Monitor
 Carbon Adsorber
Install integrating regeneration stream flow monitoring device with an
accuracy of at least ±10%, capable of recording the total regeneration
stream mass or volumetric flow for each regeneration cycle.  Also install
and use a carbon bed temperature monitoring device capable of recording
the carbon bed temperature after each regeneration and within 15 minutes
of completing any cooling cycle. [§63.1429(a)(6)]
Total regeneration stream mass or
volumetric flow AND
Carbon bed temperature
 Absorber, Condenser,
 Carbon Adsorber (if not
 using parameters above)
Organic monitoring device equipped with a continuous recorder.
[§63.1429(a)(7)]
Concentration at outlet of recovery
device
*   Equipment such as low leg drains, high point bleeds, analyzer vents, open-ended valves or lines, and pressure relief valves needed for safety
    purposes aren't required to comply with the bypass line requirements in §63.1429(c).


**  These requirements apply only to boilers or process heaters with a design heat input capacity less than 44 megawatts and where the process vents
    are not introduced with or used as the primary fuel.
                                                                 38

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                                                             Chapter 6 - Process Vents


What are my parameter monitoring requirements?


You must monitor parameters for each combustion, recovery, or recapture device used to control
process vent emissions, as well as for bypass lines. These monitoring requirements will depend
on what type of PMPU process you have (batch or continuous) and the type of control device
you're using. §63.1429 and Tables 5 and 6 of Subpart PPP list your process vent monitoring
requirements.  We've summarized these requirements in Table 6-


For all options except the use of carbon absorbers and flares, you must monitor using a
continuous recorder (that is, one that either records an instantaneous data value at least once
every 15 minutes for continuous processes or records 1 hour or more frequent block average
values for batch processes). You must record either each measured data value or each block
average value.  You must calculate the daily average value or each monitored parameter for each
operating day according to §63.1439(d). You must define the operating day for each control
device in your Notification of Compliance Status. [§63.1429(d)(3)J


For each parameter, you must establish a site-specific minimum or maximum level that indicates
compliance during the performance test or TRE determination.  Please see Table 7 of Subpart
PPP and §63.1429(d) for establishing parameter monitoring levels.


What are my recordkeeping and reporting requirements?


Chapter 16 in this document describes the general recordkeeping and reporting requirements that
apply to entire affected sources under this subpart. Table 6 includes the additional specific
requirements for all process vents that are not Group 2 process vents or process vents producing
polyether polyols using TFIF.
                                        39

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
                 Monitoring Requirement
                             Recordkeeping Requirement
                                    Reporting Requirement"
AH combustion,
recovery, and
recapture
devices
                                              information documenting your
                                              compliance status under §63.1430(b)
                                              information documenting your
                                              establishment of a parameter
                                              monitoring level under §63.1430(c)
                                              if you're complying with the percent
                                              reduction or annual epoxide emission
                                              limitations, record the percent
                                              reduction of organic HAP or TOC
                                              achieved [§63.1430(b)(2)(i)]
                                              if you're complying with an outlet
                                              concentration limitation, record the
                                              concentration of organic HAP or TDC
                                              at the outlet of the combustion
                                              [§63.1430(b)(2)(ii)]
                                                                  information documenting your
                                                                  compliance status under
                                                                  §63.1430(b)NOCS
                                                                  information documenting your
                                                                  establishment of a parameter
                                                                  monitoring level under
                                                                  §63.1430(c)NOCS
                                                                  t§63.1430(g)]
Each Process
Vent System
with bypass
lines that could
divert
emissions away
from the
combustion,
recovery or
recapture
device and to
the atmosphere
You must monitor flow indicator operation and process vent diversion OR monitor valves diverted and seals broken.
Flow indicator
operation
monitor whether the flow
indicator for bypass lines was
operating hourly (for batch
vents, only during batch
emission episodes selected for
control)
whether the flow indicator for bypass
lines was operating each hour
§63.1430(d)(3)
times of all periods when flow
indicator is not operating (for
batch vents, only during batch
emission episodes selected for
control)
                                                               40

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
                 Monitoring Requirement
                              Recordkeeping Requirement
                                     Reporting Requirement*
Each Process
Vent System
with bypass
lines that could
divert
emissions away
from the
combustion,
recovery or
recapture
device and to
the atmosphere
Process vent
diverted
                 Valves diverted
                 or seals broken
monitor whether process vent
was diverted from the
combustion, recovery or
recapture device hourly (for
batch vents, only during batch
emission episodes selected for
control)
any times when the process vent was
diverted from the combustion,
recovery or recapture device each hour
§63.1430(d)(3)
times of all periods when vent
stream is diverted.(for batch
vents, only during batch
emission episodes selected for
control)
§63.1430(h)(3)
                 monthly inspections whether
                 valves are in the diverting
                 position or a seal has been
                 broken
                              records that monthly inspections of the
                              seals or closure mechanisms were
                              performed


                              records of all occurrences when the
                              seal mechanism is broken, the bypass
                              line valve position has change, or the
                              key for a lock-and-key type
                              configuration has been checked out
                              records of any monthly inspection that
                              shows that a car-seal has broken.
                              §63.1430(d)(4)
                                     all monthly inspections that
                                     show valves are in the diverting
                                     position or that a seal has been
                                     broken
                                     §63.1430(h)(4)
                                                               41

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
                 Monitoring Requirement
                             Recordkeeping Requirement
                                    Reporting Requirement*
All Devices
Except Flares
and Carbon
Adsorbers
Operating
Parameters)
specified in
Table 8 of this
document
Over the period of the
performance test or during the
period of the TRE
determination (continuous)


At least every 15 minutes
Average during the performance test
or during the period of the TRE
determination (continuous)


If all recorded values for the operating
day are above the minimum or below
the maximum value established during
the performance test or TRE
determination, a record of such
[§63.1430(d)(2)(ii)]
Average during the performance
test or during the period of the
TRE determination (continuous)
NOCS


Each daily average value that is
below the minimum or above the
maximum value established in
the Notification of Compliance
Status or operating permit
§63.1430(h)(l)
                                                                                                   For batch processes, each
                                                                                                   instance when monitoring data
                                                                                                   are not collected.
                                                                                                   For continuous processes, each
                                                                                                   instance when sufficient
                                                                                                   monitoring data are not
                                                                                                   collected.
                                                                                                   §63.1430(h)(2)
                                                              42

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
                 Monitoring Requirement
                              Recordkeeping Requirement
                                    Reporting Requirement*
Boilers and
Process
Heaters
                                              for boilers and process heaters if your
                                              process vent streams are introduced
                                              with combustion air or are used as
                                              secondary fuel and aren't mixed with
                                              the primary fuel, you must record the
                                              percent reduction of organic HAP or
                                              TOC achieved, as required under
                                              §63.1426. [§63.1430(b)(2)(iv)]
                                                                Boilers and process heaters: record a
                                                                description of the location at which the
                                                                process vent is introduced into the
                                                               •boiler or process heater.
                                                                [§63.1430(b)(2)(iii) and Tables 5 and
                                                                6, 40 CFR part 63, subpart PPP]
                                                                reduction of organic HAP or TOC
                                                                achieved, as required under §63.1426.
                                                                [§63.1430(b)(2)(iv)]
Carbon
Adsorber
Total
regeneration
stream mass or
volumetric flow
monitor for each cycle during
performance test (batch) or
period of TRE determination
(continuous)


monitor for each cycle during
the semiannual reporting
period
record for each cycle during
performance test (batch) or period of
TRE determination (continuous)


record for each cycle during the
semiannual reporting period*
report for each cycle during
performance test NOCS


§63.1430(h)(3)
                                                               43

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            Table 6.  Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
Monitoring Requirement
Recordkeeping Requirement
Reporting Requirement*
Carbon          carbon bed        monitor after each
Adsorber        temperature       regeneration and within 15
                                  minutes of completing any
                                  cooling cycles during
                                  performance test (batch) or
                                  period of TRE determination
                                  (continuous)
                             record after each regeneration and
                             within 15 minutes of completing any
                             cooling cycles during performance test
                             (batch) or period of TRE
                             determination (continuous)
                                    report for each regeneration
                                    during the period of the
                                    performance test or TRE
                                    determination NOCS
                                                                 §63.1430(h)(6)
                                  monitor after each
                                  regeneration and within 15
                                  minutes of completing each
                                  cooling cycle during the
                                  semiannual reporting period
                                                              44

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices"
Control Device   Parameter
                 Monitoring Requirement
                              Recordkeeping Requirement
                                     Reporting Requirement**
Flare
Presence of
flame at the
pilot light
whether monitor is operating
and flame is present
hourly records of whether the monitor
was continuously operating and
whether a flame was continuously
present at the pilot light during each
hour
                                                                record the presence of a flame at the
                                                                pilot light over the full period of the
                                                                compliance determination
report the presence of a flame at
the pilot light ovei the full period
of the compliance determination
report the times and durations of
all periods when all pilot flames
of a flare were absent
[§63.1430(h)(5)]
                                                                record the times and durations of all
                                                                periods when all flames were absent or
                                                                the monitor was not monitoring, as
                                                                required by §63.1437(c)
                                                                record the flare design and all visible
                                                                emission readings, heat content
                                                                determinations, flow rate
                                                                determinations, and exit velocity
                                                                determinations made during the flare
                                                                specification determination, as
                                                                required under §63.1437(c).
                                                                [§63.1430(b)(l) and Tables 5 and 6,
                                                                40 CFR part 63, subpart PPP]
                                                               45

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             Table 6. Monitoring, Recordkeeping, and Reporting Requirements for Process Vent Control Devices*
Control Device   Parameter
                 Monitoring Requirement
                             Recordkeeping Requirement
                                    Reporting Requirement**
Absorber,
Condenser,
Carbon
Adsorber (if
monitoring
HAP
concentration)
HAP
concentration
level or reading
at outlet of the
recovery device
Over the period of the
performance test or during the
period of the TRE
determination (continuous)


At least every 15 minutes over
the semiannual reporting
period
Average concentration level or reading
measured during the performance test
(batch) or TRE determination
(continuous)
                                                               Daily average concentration level
Average concentration level or
reading measured during the
performance test (batch) or TRE
determination (continuous)
NOCS
                                                                                  Each daily average concentration
                                                                                  level or reading that is above the
                                                                                  maximum concentration
                                                                                  established in the NOCS or
                                                                                  operating permit
                                                                                                   All instances when monitoring
                                                                                                   data not collected
      Requirements are from Tables 5 and 6, 40 CFR part 63, subpart PPP, except where otherwise noted.
      Report in Periodic Report unless Table 6 states Notification of Compliance Status (NOCS)
                                                              46

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                                                                 Chapter 6 - Process Vents


What is an excursion?


An excursion is when the daily average value of one or more monitored parameters is outside of
the maximum or minimum level or when monitoring data is insufficient.  [§63.1438(e) and (f)]
You're allowed a certain number of excursions (that is, "excused excursions") for each
combustion, recovery, or recapture device for each semiannual reporting period.  For each
combustion , recovery, or recapture device, you're allowed the following number of excused
excursions.  [§63.1438(g)]


    •       6 excused excursions for the first semiannual reporting period (that is, the 6-month
           period immediately following the date your Notification of Compliance Status
           (NOCS) is due)
    •       5 excused excursions for the second semiannual reporting period

    •       4 excused excursions for the third semiannual reporting period
    •       3 excused excursions for the fourth semiannual reporting period

    •       2 excused excursions for the fifth semiannual reporting period
    •       1 excused excursion for the sixth and all subsequent semiannual reporting periods


Any excursion that is not an excused excursion is a violation of the emission limitation or
the operating limit. [§63.1438(e)]


Table 7 explains what an excursion is for each type of combustion, recovery, or recapture device.
It also states whether the excursion is a violation of the emission limit or the operating limit.
                                         47

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                                                       Table 7.  Excursions
For each...
An excursion is..,
The excursion is a
violation
of the...
Condenser
t§63.1438(e)(l)(i)]
when the daily average exit temperature (product side) for an operating day is
higher than the maximum value established during the performance test (batch
vents) or TRE determination (continuous vents)
Emission limit
Recovery or recapture device other
than a condenser where an organic
monitoring device is used to monitor
HAP concentration at the outlet of
the control device
[§63.1438(e)(l)(ii)]
when the daily average HAP concentration level or reading at the outlet of the
control device for an operating day is higher than the maximum value established
during the performance test (batch vents) or TRE determination (continuous
vents)
Emission limit
Storage vessel where continuous
monitoring is required AND each
process vent from continuous unit
operations using combustion,
recovery, or recapture devices AND
for process wastewater
streams [§63.1438(f)(l)]
when the daily average value for one or more monitored parameters for an      •   Emission limit
operating day is higher than the maximum value or below the minimum value
established during the performance test §63.1438(f)(l)(i)

Not including periods of SSM or non-operation, the period of combustion,         Operating limit
recovery, or recapture device operation in an operating day is 4 hours or greater
and monitoring data are insufficient to constitute a valid hour of data for at least
75 percent of the operating hours §63.1438(0(1)00
                                      Not including periods of SSM or non-operation, the period of combustion,
                                      recovery, or recapture device operation in an operating day is less than 4 hours
                                      and monitoring data are insufficient to constitute a valid hour of data for at least 2
                                      of the operating hours §63.1438(f)(l)(iii)
                                                                           Operating limit
                                                                48

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                                                       Table 7. Excursions
For each...
An excursion is...
The excursion is a
violation
of the...
Storage vessel where continuous
monitoring is NOT required
[§63.1438(f)(2)]
when the average value of one or more parameters, averaged over the time during   Operating limit
which the storage vessel is being filled (that is, when the liquid level in the
storage vessel is being raised), is above the maximum level or below the
minimum level established for the given parameters §63.1438(f)(2)(i)(A)

when measured values are not available for at least 75 percent of the specific        Emission limit
intervals at which parameters are to be monitored or recorded during which the
storage vessel is being filled
§63.1438(f)(2Xi)(B)
                                      an operating requirement included in the monitoring plan is not met (for example,
                                      the disposable carbon canister is not exchanged before the expiration of its rated
                                      service life) §63.1438(0(2)(ii)
                                                                            Operating limit
Process vent from batch operations
[§63.1438(0(3)]
the daily average value of one or more monitored parameters is above the
maximum or below the minimum established level for the given parameter
[§63.1438(0(3)(i)]
Operating limit
                                      when monitoring data is insufficient for an operating day. That is, when
                                      measured values are not available due to monitoring system breakdowns, repairs,
                                      calibration checks, or zero (low-level) and high-level adjustments, for at least 75
                                      percent of the 15-minute periods when batch emission episodes selected to be
                                      controlled are being vented to the control device during the operating day
                                      [§63.1438(0(3)(ii)]
                                                                            Emission limit
                                                                 49

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                                                       Table 7.  Excursions
For each...
An excursion is...
The excursion is a
violation
of the...
Process vent using ECO to reduce
epoxide emissions
when the time from the end of the epoxide feed to the end of the ECO is less than    Operating limit
the time established in the NOCS [§63.1427(i)(3)(i)]
                                      when the reactor epoxide partial pressure at the end of the ECO is greater than the   Operating limit
                                      partial pressure established in the NOCS [§63. 1427(i)(3)(ii)]
when the epoxide concentration in the reactor liquid at the end of the ECO is
greater than the epoxide concentration established in the NOCS
                                                                                                                 Operating limit
when the parameter is not measured and recorded at the end of the ECO
                                                                                                                 Operating limit
                                      when the alternative monitoring parameter is outside the range established for       Operating limit
                                      proper operation of ECO as a control technique [§63.1427(i)(3)(v)]
                                                                50

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                                                              Chapter 6 - Process Vents
Can I request an alternative method of monitoring for my
process vents?
If you're subject to the monitoring parameters under §63.. 1429 for process vents, you may submit
a request to use an alternative monitoring procedure. You may submit a request to use an
alternative monitoring parameter if you meet any of the following conditions.


   •   You use a combustion device other than an incinerator, boiler, process heater or flare.
       [§63.1429(b)(2)J
   •   Your Group 2 continuous process vent maintains a TRE greater than 1.0 but less than or
       equal to 4.0 without a recovery device or with a recovery device other than the recovery
       devices listed in §63.1429(a). [§63.1429(b)(3)j
   •   You use an incinerator, flare, boiler, process heater, adsorber, condenser or carbon
       adsorber as identified in §63.1429(a), but you wish to monitor a parameter other than
       those identified in §63.1429(a). [§63.1429(b)(4)]


Your request for an alternative monitoring parameter must be approved by the Administrator
before you can begin operating under that parameter. [§64.1429(b)] For additional information,
see §63.1429(b) of Subpart PPP and §63.8(f) of the part 63 General Provisions.       . .
Can I request an alternative method of recordkeeping for my
process vents?

If you're subject to the continuous parameter operating and recordkeeping provisions under
§63.1429 for process vents, you may submit a request to use an alternative continuous
monitoring and recordkeeping procedure. For additional information, see §63.1439(g) of
Subpart PPP and 63.10(f) of the part 63 General Provisions.

Can I request an alternative method of reporting for my process
vents?
If you're subject to the continuous parameter operating and recordkeeping provisions under
§63.1429 for process vents, you may submit a request to use an alternative reporting procedure.
For additional information, see §63.1430(k) and §63.1439(h) of Subpart PPP and 63.10(f) of the
part 63 General Provisions.
                                       51

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  Chapter 7 - Requirements for Process Vents Using THF
What does this chapter cover?

This chapter covers the requirements for PMPU producing polyether polyols using THF.  For
these PMPU,  you must follow the Hazardous Organic NESHAP (HON) process vent
requirements in §§63.113 through 63.118, except as noted in §63.1425(f)(l)-(10). The
exceptions in §63.1425(f)(l)-(10) are summarized in Table 8.

                         Table 8.  THF Process Vent Requirements
 For each THF process
 vent subject to HON...
Then replace...
With (for the purposes of Subpart
PPP)...
 §63.113 [process vents]     the 12/31 /92 date in §63.113            9/4/97

 §63.114(c) and           §63.151(f) [alternative monitoring        §63.1439(f) and §63.1439(e)(8)
 §63.117(e)              parameters] and §63.152(e) [submission
                        of operating permit application]

 §63.114, §63.117 and      §63.152(b)  [Notification of Compliance   §63.1439(e)(5) [Notification of
 §63.118                 Status]                             Compliance Status]

 §63.117 and §63.118      §63.152(c) [Periodic Reports]           §63.1439(e)(6) [Periodic Reports]

 §63.118(f)(2)            §63.152(c)(2)(ii)(A) [excursion]         §63.1438(f) [definition of excursion]

 §63.114(e)              §63.152(b)  [provisions for establishing    §63.1438 [provisions for establishing the
                        the parameter monitoring level]          parameter monitoring level] and comply
                                                          with§63.1439(e)(5)(ii)or
                                                          §63.1439(e)(8) to report information
                                                          related to parameter monitoring levels.

 §63.114, §63.117 and      "range"                            "level"
 §63.118

 §63.118(g), (h), (i) or (j)    HON §63.18(g), (h), (i) or (j)            §63.1425(f)(7)(i) - (iv) [reports of
                        requirements for reporting process        process changes]
                        changes

 §63.118                 §63.152(f) [recordkeeping requirements]   §63.1439(d) [recordkeeping
                                                          requirements]

 §63.115 and §63. II6       "HAP" in Table 2 of 40 CFR part 60,     "organic" HAP
                        Subpart F

 63.116(c)(3) and (4)        Method 18,40 CFR part 60, appendix A   Either Method 18 or Method 25A, 40
                                                          CFR part 60, appendix A. However, if
                                                          you use Method 25 A, you must comply
                                                          with §63.1425(f)91)(i) and (ii).
                                            52

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                                                        Chapter 7 - THF Vents


What are my monitoring installation and operation
requirements?


You can find these requirements in the HON at §63.114(a).


What are my parameter monitoring requirements?


You will find these requirements in the HON at §63.114. However, you must establish your
parameter monitoring range and report monitoring data according to the requirements in Subpart
PPP, which are described in Table 6.


What are my recordkeeping and reporting requirements?


See Chapter 16 for general recordkeeping and reporting requirements.


What is an excursion?


See Table 7 in Chapter 6, which describes excursions for all process vents, including those
producing polyether polyols using THF.


Can I request an alternative monitoring, recordkeeping, or
reporting?


See the alternative monitoring, recordkeeping, and reporting sections in Chapter 6.
                                   53

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     Chapter 8 - Requirements for Process Vents Using
                                   Epoxides


What does this chapter cover?

This chapter covers requirements for process vents producing polyether polyols using epoxides.

What compliance options do I have for new sources?

Table 9 explains four compliance options for your new process vents producing polyether
polyols using epoxides.
  Table 9. Compliance Options for New Process Vents Producing Polyether Polyols Using
                                      Epoxide
 Compliance
 Option
Description
To meet these
requirements, you may use
a(n)...
 Option 1
 §63.1425(b)(l)(i)
Reduce total epoxide emissions from the
group of process vents in the PMPU by an
aggregated 99.9 percent.
incinerator, adsorber, carbon
adsorber, or condenser
 Option 2
 §63.1425(b)(l)(ii)
Maintain an outlet concentration of total
epoxides or TOC after each combustion,
recapture, or recovery device within the
PMPU of 20 ppmv or less.
incinerator, adsorber, carbon
adsorber, or condenser
 Option 3
 §63.1425(b)(l)(iii)
Maintain an emission factor of no greater
than 4.43 x 10~3 kilogram epoxide emissions
per megagram of product for all process
vents in the PMPU.
incinerator, adsorber, carbon
adsorber, condenser, or boiler or
process heater
 Option 4            Reduce total epoxide emissions from a
 §63.1425(b)(l)       group of process vents in the PMPU by an
                    aggregated 99.9 percent. Then, for all
                    process vents that haven't reduced
                    aggregated emissions to 99.9 percent,
                    maintain an outlet concentration of total
                    epoxides or TOC (after each combustion,
                    recapture, or recovery device) of 20 ppmv
                    or less.
                                     incinerator, adsorber, carbon
                                     adsorber, or condenser
                                        54

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                                                             Chapter 8 - Epoxide Process Vents

What compliance options do I  have for existing  sources?

Table 10 shows your six compliance options for your existing process vents using epoxides.
         Table 10. Compliance Options for Existing Process Vents Using Epoxide
 Compliance
 Option
Emission Limitation
Meet the limitation
using a(n)...
 Option 1

 §63.1425(bX2XO
Reduce the total epoxide emissions from each
process vent in the PMPU using a flare.
flare
 Option 2

 §63.1425(b)(2)(ii)
Reduce total epoxide emissions from the group
of process vents in the PMPU by an aggregated
98 percent.
incinerator, adsorber,
carbon adsorber, or
condenser
 Option 3

 §63.1425(b)(2)(iii)
Maintain an outlet concentration of total
epoxides or TOC after each combustion,
recapture, or recovery device within the PMPU
of 20 ppmv or less.
incinerator, adsorber,
carbon adsorber, or
condenser
 Option 4
 §63.1425(b)(2)(iv)
Maintain an emission factor of no greater than
1.69 X 10"2 kilogram epoxide emissions per
megagram of product (1.69 X 10"^ pounds
epoxide emissions per 1,000 pounds of product)
for all process vents in the PMPU. You may use
an incinerator, adsorber, carbon adsorber, or
condenser to meet these requirements.
incinerator, adsorber,
carbon adsorber, condenser,
or boiler or process heater
 Option 5
 §63.1425(b)(2)
Reduce total epoxide emissions from a group of
process vents in the PMPU by an aggregated 98
percent. Then, for all process vents that haven't
reduced aggregated emissions to 98 percent,
maintain an outlet concentration of total
epoxides or TOC (after each combustion,
recapture, or recovery device) of 20 ppmv or
less.
incinerator, adsorber,
carbon adsorber, or
condenser
 Option 6

 §63.1425(b)(2)
Reduce the total epoxide emissions from each
process vent in the PMPU using a flare. AND
maintain an outlet concentration of total
epoxides or TOC after each combustion,
recapture, or recovery device within the PMPU
of 20 ppmv or less.
flare and  incinerator,
adsorber, carbon adsorber,
or condenser
                                            55

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                                                 Chapter 8 - Epoxide Process Vents


What are my monitoring installation and operation
requirements?

You'll find these requirements in §63.1429, and in Table 5.

What are my parameter monitoring requirements?

You'll find these requirements in Table 6 and in §63.1429 and Tables 5 and 6 of Subpart PPP .


What are my recordkeeping and reporting requirements?

Chapter 16 in this document describes the general recordkeeping and reporting requirements that
apply to entire affected sources under this subpart. Table 6 includes the additional specific
requirements for all process vents, including epoxide process vents.

What is an excursion?

See Table 7, which describes excursions for process vents, including those producing polyether
polyols using epoxides.

Can I request alternative monitoring, recordkeeping, or
reporting?

See the alternative monitoring sections in Chapter 6.
                                   56

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     Chapter 9 - Requirements for Process Vents Using
       Nonepoxide HAP to Make or Modify the Product


What does this chapter cover?

This chapter describes the requirements for new or existing process vents using nonepoxide HAP
to make or modify the product. You'll find these requirements in the rule at §63.1425(c). This
chapter also covers group determinations for process vents using nonepoxide HAP to make or
modify the product, which are in the rule at §63.1428.
            Definition Make or modify the product means to produce the poiyether polyol by
            polymerization of epoxides or other cyclic ethers with compounds having one or more
            reactive hydrogens, and to incorporate additives (e.g., preservatives, antioxidants, or
            diluents) in order to maintain the equality of the finished products before shipping.
            Making and modifying the product for this regulation doesn't include grafting,
            polymerizing the polyol, or reacting it with compounds other than EO or PO.



How do I determine the group status of my combination of batch

process vents?


Your combination of batch process vents is Group 1  if it has annual nonepoxide organic HAP
emissions of more than 11,800 kg/yr, AND if the cutoff flow rate for that combination of batch
process vents is greater or equal to the annual average flow rate. Use Table 11 to determine
annual nonepoxide HAP emissions, annual average flow rate, and cutoff flow rate.  If the
combination of batch process vents is not Group 1, it is Group 2.
                                      57

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                                        Chapter 9 - Nonepoxide HAP to Make/Modify the Product
        Table 11.  Group Determinations for Combinations of Batch Process Units
     Procedure
                            Description
 Determine annual
 nonepoxide organic
 HAP emissions
 from combination of
 batch process vents
 Determine annual
 average flow rate
 Determine cutoff
 flow rate for each
 PMPU using
 Equation 14 in
 subpart PPP:
 [§63.1428(e)]
First, you need to determine the annual nonepoxide organic HAP emissions
(using the methods described in §63.488(b) of subpart U) for each process vent
from a batch unit operation associated with the use of a nonepoxide organic HAP
to make or modify a polyether polyol product [§63.1428(b)J

Next, you must add up the annual nonepoxide organic HAP emissions from all
individual process vents from batch unit operations associated with the use of a
nonepoxide organic HAP to make or modify a polyether polyol product.

First, you must determine the annual average flow rate (using the methods
described in §63.488(e) of subpart U) for each process vent from a batch unit
operation associated with the use of a nonepoxide organic HAP to make or
modify the product [§63.1428(d)(l)]

Next, you must add up the annual average flow rates from all individual process
vents from batch unit operations in the PMPU, to obtain the total annual
average flow rate for the combination of process vents associated with the use
of a nonepoxide organic HAP to make or modify the product  [§63.1428(d)(2)]

CFR = (0.00437)(AE)-5.16

In this equation, "CFR" stands for "cutoff flow rate," in standard cubic meters
per minute (scmm). "AE" stands for "Annual TOC or nonepoxide organic HAP
emissions from the combination of process vents from batch unit operations that
are associated with the use of nonepoxide organic HAP to make or modify the
product" in kilograms per year (kg/yr).
How do I determine the group status of my continuous process
vents?

A process vent with all of the following characteristics is a Group 1 continuous process vent.

    •   It is from a continuous unit operation that is associated with the use of a nonepoxide
       organic HAP to make or modify the product.
    •   It has a flow rate greater than or equal to 0.005 standard cubic meters per minute.
    •   It has a total organic HAP concentration greater than or equal to 50 parts per million by
       volume (ppmv).
    •   It has a total resource effectiveness (TRE) index value less than or equal to 1.0.
                                           58

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                                      Chapter 9 - Nonepoxide HAP to Make/Modify the Product

 A Group 2 continuous process vent is a process vent from a continuous unit operation that is
 associated with the use of a nonepoxide organic HAP to make or modify the product, and that
 does not meet the conditions which identify a process vent as a Group 1 continuous process vent.

 How do I calculate the TRE index value for my continuous
 process vent?

 You must determine the TRE index value at the point in the production process where all
 applicable control techniques have been applied to reduce epoxide emissions (i.e., after the last
 nonepoxide recovery device; at the exit of the combustion, recovery, or recapture device; or at
 the exit of the continuous unit operation, if extended cookout is used without a recovery device).
 You must use the following equation (as described in §63.115(d)(3) of subpart G) to calculate
 the TRE index value:


                   TRE = -=r~\a + b(Qs] + c(Hr} + d(EToc}\
                           LHAP L                              J

 In this equation, "TRE" represents the TRE index value, "EHAP" represents the hourly emission
 rate of total organic HAP (kg/hr), "Qs" represents the vent stream flow rate (scmm), "Era"
 represents the emission rate of TOC (minus methane and ethane), kg/hr, and "a", "b", "c", and
 "d" are coefficients presented in Table 1 of subpart G of part 63.

 However, if your Group 1 continuous process vent is subject to the control requirements under
 §63.1425(c)(3), you don't have to determine the TRE index for each process vent stream.
 [§63.1430(e)(2)].

 How do I calculate TRE if I combine batch  and continuous
 process vents?

If you combine a process vent from a batch unit operation that is associated with the use of
nonepoxide organic HAP to make or modify a product with a process vent from a continuous unit
operation that is associated with the use of a nonepoxide, either prior to the epoxide control
technique or prior to a nonepoxide recovery device that is after the epoxide control technique,
then the following requirements apply to your combined process vents.

       You are not required to include the process vent from that batch unit operation in the
       group determination for the "combination of process vents from batch unit operations."
       [§63.1428(i)(l)]
                                        59

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                                   Chapter 9 - Nonepoxide HAP to Make/Modify the Product

   •   You must calculate the TRE index value of the combined stream as it would be for any
       other process vent from a continuous unit operation, but during a period when
       nonepoxide organic HAP emissions are being generated by the batch unit operation.
       [§63.1428(iX2>]

What are my monitoring installation and operation
requirements?

For Group 1 unit operations and Group 2 continuous process vents, you'll find these
requirements in §63.1429, and in Table 5. There are  no monitoring requirements for Group 2
combinations of batch process vents.


What are my compliance, monitoring, recordkeeping, and
reporting requirements?

Table 12 explains these requirements. For Group 2 combinations of batch process vents, you
will need to determine the annual total emissions for one batch cycle for each unique product
class. For a discussion of determining product class,  see Chapter 11.
                                      60

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Table 12. Requirements for Process Vents Using Nonepoxide HAP to Make or Modify the Product
Process
Vents
Group 1 Batch
Compliance Options
Reduce nonepoxide organic HAP
emissions using a flare
[§63.1425(c)(l)(i)]OR
Reduce nonepoxide organic HAP
emissions by 90 percent using a
Monitoring
Requirements
Meet the
monitoring
requirements in
§63. 1429, which
are described in
Table 6.
Recordkeeping Requirements
Meet the recordkeeping requirements
in §63.1430(b-d), which are described
in Table 6.

Reporting
Requirements*
Meet the reporting
requirements in
§63. 1430(g), which are
described in Table 6.
  combustion, recovery, or recapture
  device.  You may use an incinerator,
  adsorber, carbon adsorber, or condenser
  to meet these requirements.
  [§63.1425(c)(l)(ii)]
                                               61

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               Table 12. Requirements for Process Vents Using Nonepoxide HAP to Make or Modify the Product
Process
Vents
Compliance Options
Monitoring
Requirements
Recordkeeping Requirements
Reporting
Requirements*
Group 2 Batch   None. If you make a process change
                that affects a Group 2 combination of
                batch process vents such that the change
                could change the group status from
                Group 2 to Group 1, reevaluate group
                status.
None
If the total annual emissions are <
1 1 ,800 kg/yr, only need description
and an emission estimate for each
batch emission episode; total emissions
for one batch cycle for each unique
product class ; and total annual
uncontrolled TOC or nonepoxide
organic HAP emissions
information on group
determination NOCS
[§63.1430(g)(2)]

report of process
change that causes unit
to become Group 1
[§63.1430(i)]
                                                                        If the total annual emissions are ^
                                                                        1 1 ,800 kg/yr, also need the annual
                                                                        average flow rate; cutoff flow rate; and
                                                                        results of the PMPU group
                                                                        determination  [§63. 1430(e)(l)(iii-v)]

                                                                        combined total annual nonepoxide
                                                                        organic HAP emissions
                                                                        [§63.1430(f)(l)]
                                                               62

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Table 12. Requirements for Process Vents Using Nonepoxide HAP to Make or Modify the Product
Process
Vtnts
Group 1
Continuous
Compliance Options
Reduce nonepoxide organic HAP
emissions using a flare.
[§63.1425(c)(3)(i)]OR
Reduce nonepoxide organic HAP
emissions by 98 percent using a
Monitoring
Requirements
Meet the
monitoring
requirements in
§63. 1429, which
are described in
TableJJ.
Recordkeeping Requirements
Meet the recordkeeping requirements
in §63.1430(b-d), which are described
in Table 6.
For continuous unit operations with
flow rates < 0.005 scmm: any process
Reporting
Requirements*
Meet the reporting
requirements in
§63. 1430(g), which are
described in Table 6.
  combustion, recovery, or recapture
  device. You may use an incinerator,
  adsorber, carbon adsorber, or condenser
  to meet these requirements.
  [§63.1425(c)(3)(ii)]
change that increases the process vent
stream flow rate and any recalculation
of the flow rate [§63.1430(f)(4Xi-ii)]

For continuous unit operations with
organic HAP concentration < 50 ppmv,
any process change that increases the
organic HAP concentration of the
process vent stream and any
recalculation of the concentration
[§63.I430(f)(5)(i-ii)]
                                                 63

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Table 12. Requirements for Process Vents Using Nonepoxide HAP to Make or Modify the Product
Process
Vents
Group 2
Continuous
with TRE index
value > 1 .0 and
<4.0
Compliance Options
Recalculate the TRE index value
according to §63.1428(h)(2) whenever
you make a change to the process that
could change your Group 2 combination
of process vents to Group 1.
[§63.1425(c)(4)(i)]
Monitoring
Requirements
Meet the
requirements in
§63.1429, which
are described in
Table 6.
Recordkeeping Requirements
Meet the recordkeeping requirements
in§63.1430(d). See Table 6.
For continuous unit operations with
flow rates < 0.005 scmm: any process
change that increases the process vent
Reporting
Requirements*
information on group
determination NOCS
t§63.1430(g)(3)]
                                                         stream flow rate and any recalculation
                                                         of the flow rate. Also, TRE
                                                         determination if flow rate increases to
                                                         £ 0.005 scmm [§63.1430(f)(4)(i-iii)]

                                                         For continuous  unit operations with
                                                         organic HAP concentration < 50 ppmv,
                                                         any process change that increases the
                                                         organic HAP concentration of the
                                                         process vent stream and any
                                                         recalculation of the concentration.
                                                         Also, TRE determination if organic
                                                         HAP concentration £ 50 ppmv
                                                         [§63.1430(f)(5)(i-iii)]

                                                         records of measurements and
                                                         calculations to determine TRE index
                                                         value of each process stream
                                                         [§63.1430(e)(2)]

                                                         records of .combined total annual
                                                         nonepoxide organic HAP emissions
                                                         [§63.1430(f)(l)]
                                                64

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               Table 12. Requirements for Process Vents Using Nonepoxide HAP to Make or Modify the Product
Process
Vents
Compliance Options
Monitoring
Requirements
Recordkeeping Requirements
Reporting
Requirements*
Group 2         None. Recalculate the TRE index value
Continuous      according to §63.1428(h)(2) whenever
with TRE index  you make a change to the process that
value  > 4.0      could change your Group 2 combination
                of process vents to Group 1.
                f§63.1425(c)(4Xii)]
None
records of measurements and
calculations to determine TRE index
value of each process stream
[§63.1430(e)(2)]

any process changes and any
recalculation of the TRE index value
[§63.1430(f)(3)(i-ii)]

For continuous unit operations with
flow rates < 0.005 scmm: any process
change that increases the process vent
stream flow rate and any recalculation
of the flow rate. Also, TRE
determination if flow rate increases to
;> 0.005 scmm [§63.1430(f)(4)(i-iii)]

For continuous unit operations with
organic HAP concentration < 50 pptnv,
any process change that increases the
organic HAP concentration of the
process vent stream and any
recalculation of the concentration.
Also, TRE determination if organic
HAP concentration £ 50 ppmv
[§63.1430(f)(5Xi-'ii)]
information on group
determination NOCS
[§63.1430(g)(3)]

information regarding
process change that
causes unit to change to
Group 2 with TRE
index value <4.0
[§63.14300X1)]

information regarding
process change that
causes unit to increase
flow rate above
0.005scmm
[§63.1430(j)(2)]

information regarding
process change that
causes unit to increase
organic HAP above 50
ppmv and TRE index
<4.0 [§63.1430(JX3)]
   Report in Periodic Report, except where Table 12 indicates Notification of Compliance Status. (NOCS)
                                                               65

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                                      Chapter 9 - Nonepoxide HAP To Make/Modify the Product
What is a process change?
Any change that could reasonably be expected to change the status of the process vent or
combination of batch process vents from Group 2 to Group 1 is considered to be a process
change. Table 13 lists changes that are and are not considered process changes. [§63.1428(g)(l)
and (h)(2)]
                             Table 13. Process Changes
 Actions that are process changes
Actions that are not process changes
 increases in production capacity or
 production rate
process upsets
 changes in feedstock type or catalyst type   unintentional, temporary process changes
 whenever there is replacement, removal,
 or modification of recovery equipment
For Group 2 continuous process vents, changes
that are within the range on which the original
THE calculation was based.
 For Group 2 combinations of batch vents,
 any change that results in an increase
 (over the estimate used in the group
 determination) in the annual nonepoxide
 organic HAP emissions
For Group 2 combinations of batch vents,
changes that are within the margin of variation
on which the original group determination was
based.
What must I do if I have a process change?

If you have a process change, you must redetermine the Group status of your continuous unit
operation process vents or combination of batch vents. If the Group status changes from Group 2
to Group 1, you must comply with the Group 1 requirements and submit a report of the process
change in the next Periodic Report that covers the period  during which the process change
occurred. [§63.1428(g)(3)(i-ii) and (h)(ii-iii)]
                                         66

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                                      Chapter 9 - Nonepoxide HAP To Make/Modify the Product

How do I  redetermine group status for Group 2 batch  process
vents?

You may choose between two options following a process change affecting your Group 2
combination of batch process vents.  [§63.1428(g)(2)]
    Option 1:  redetermine the group status of the combination of batch process vents by
    repeating the procedures in §63.1428(b) through (e), as applicable, and determining if the
    combination of process vents is a Group 1 combination of batch process vents.  Table 11
    describes these procedures.

    Option 2:  use engineering assessments under §63.488(b)(6)(i) to determine the effects of a
    process change.

How do I redetermine group status for Group 2 continuous
process vents?

After a process change, redetermine group status according to and meet the requirements in
Table 14.
             Table 14. Group Determinations for Continuous Process Vents
 First, redetermine Group Status
 Using One of These Options
 l§63.1428(h)(l) and
Then, if your recalculation
shows any of the following, the
continuous unit operation is
Group 1 and you must meet the
requirements for Group 1
continuous process vents.
[§63.1428(h)(2)]
If your recalculation shows any
of the following, you must also
submit the recalculation in the
next Periodic Report. You are
not subject to the Group 1
requirements. [§63.1430(j)(2)
& G)(3)l
 Option 1: Recalculate TRE
 index value based on process
 vent stream flow rate, TOC,
 nonepoxide organic HAP, HON
 heating values in §63.115(d)(l)
 or (2) and the TRE equation in
 §63.115(d)(3).
The recalculated TRE index
value is less than or equal to 1.0.
the recalculated flow rate is
greater than or equal to 0.005
                            scmm
 Option 2: Recalculate TRE
 index value based on best
 engineering assessments
 according to the HON
 provisions in §63.115(d)(l).
The TRE index value was
greater than 4.0 before the
process change, and the
recalculated TRE index value is
between 1.0 and 4.0.
the recalculated concentration is
greater than or equal to SO ppmv
[§63.14300X2) & (JX3)1
                                         67

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                                 Chapter 9 - Nonepoxide HAP To Make/Modify the Product



What are my parameter monitoring requirements?

You'll find these requirements in Table 6 and in §63.1429 and Tables 5 and 6 of Subpart PPP .


What are my recordkeeping and reporting requirements?

 Chapter 16 in this document describes the general recordkeeping and reporting requirements that
apply to entire affected sources under .this subpart. Table 6 includes the additional specific
requirements for all process vents, including epoxide process vents.


What is an excursion?

See Table 7. which describes excursions for process vents, including those producing polyether
polyols using epoxides.


Can  I request alternative monitoring, recordkeeping, or
reporting?

See the alternative monitoring sections in Chapter 6.
                                    68

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 Chapter 10 - Process Vent Requirements for Nonepoxide
           HAP Emissions from Catalyst Extraction

What does this chapter cover?

This chapter describes the requirements for controlling nonepoxide HAP emissions from new or
existing process vents that use catalyst extraction to produce polyether polyols. You'll find
these requirements in §63.1425(d).

What do we mean by "catalyst extraction"?

The term "catalyst extraction" refers to the removal of catalysts using either solvent or physical
extraction methods. [§63.1423]

What compliance options do I have for new and existing
sources?

You have two compliance options for new or existing process vents that use catalyst extraction
to produce polyether polyols.

   •   Option  1: Reduce emissions of nonepoxide organic HAP from all process vents
      associated with catalyst extraction by using a flare. [§63.1425(d)(l)]

   •   Option  2: Reduce emissions of nonepoxide organic HAP emissions from the sum total
      of all process vents associated with catalyst extraction by an aggregated 90 percent for
      each PMPU. You may use an incinerator, adsorber, carbon adsorber, or condenser to
      meet these requirements.  [§63.1425(d)(2)]

What are my monitor installation and operation requirements?

You'll find these requirements in  §63.1429,  and in Table 5.


What are my parameter monitoring requirements?

You'll find these requirements in  Table 6 and in §63.1429 and Tables 5 and 6 of Subpart PPP .

What are my recordkeeping and reporting requirements?

Chapter 16 in this document describes the general recordkeeping and reporting requirements that
apply to entire affected sources under this subpart. Table 6 includes the additional specific
requirements for all process vents, including epoxide process vents.
                                   69

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                                                    Chapter 10 - Catalyst Extraction


What is an excursion?

See Table 7. which describes excursions for process vents, including those producing polyether
polyols using epoxides.


Can  I request alternative monitoring, recordkeeping, or
reporting?

See the alternative monitoring sections in Chapter 6.
                                    70

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 Chapter 11 - Process Vent Requirements For Processes
                       Using  Extended Cookout
What does this chapter cover?

This chapter identifies requirements for new and existing affected sources using extended
cookout as a control technique when producing polyether polyols using epoxides. These
requirements are found in Subpart PPP at §63.1427.

What do we mean by "extended cookout"?

"Extended Cookout," or ECO, is a control technique that reduces the amount of unreacted
ethylene oxide and/or propylene oxide (epoxides) in the reactor, simultaneously reducing
potential epoxide emissions. This is accomplished by allowing the product to react for a longer
time period, thereby having less unreacted epoxides and reducing epoxides emissions that may
have otherwise occurred.  [§63.1423]

What is a product class?

If each of the polyether polyols has a similar pressure decay curve and is manufactured within
similar operating conditions, then they are a product class. You'll determine the pressure
decay curve for each product by using Equation 13 under §63.1427(h). The following operating
conditions must be similar. [§63.1423]

      •   a minimum reaction temperature
      •   the same number of-OH groups in the polyol
      •   a minimum catalyst concentration
      •   the same type of catalyst
      •   the epoxide ratio or range for that ratio
      •   the same reaction conditions for the system

                 Definition. Pressure decay curve is a graph of the reactor pressure versus
                 time from the point when epoxide feed is stopped until the reactor pressure is
                 constant, indicating that most of the epoxide has reacted out of the vapor and
                 liquid phases. This curve shall be determined with no leaks or vents from the
                 reactor.
                                       71

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                                                          Chapter 11 - Extended Cookout

What compliance options do I  have when using ECO?

You have two compliance options when using ECO to comply with Subpart PPP [§63.1427(a)].

    Option 1:  Meet a percent emission reduction.

    Option 2:  Maintain an emission factor.

If you are using ECO to maintain an emission factor, you must determine emissions at the end of
ECO according to §63.1427(d). If you are using ECO to meet a percent emission reduction,
follow the requirements in Table 15.

               Table 15.  Using ECO To Meet Percent Emission Reduction
 If uncontrolled
 epoxide
 emissions are...
Then you must...
You must also.
  < 10 tons (9.1 mg)   Determine emissions at the end of ECO
 per year            according to §63.1427(d) and

                    determine percent epoxide emission reduction
                    according to §63.1427(e)
  £ 10 tons (9.1 mg)
 per year
Directly measure the concentration of the
unreacted epoxide for one product from each
product class and compare with the estimated
epoxide concentration. If the calculated
epoxide concentration is within 25 % of the
directly measured concentration, use it instead
of direct measurement. OR

Directly measure the concentration of the
unreacted epoxide for each product from each
product class.
Define the end of epoxide feed
according to §63.1427(b)

Define the onset of ECO
according to§63.1427(c)

Determine emissions at the end
of ECO according to
§63.1427(d)

Determine percent epoxide
emission reduction according
to§63.1427(e)
If you use additional control devices to further reduce HAP emissions from a process vent
already controlled by ECO, then you must comply with the testing, monitoring, recordkeeping
and reporting requirements for that control device under §63.1426, §63.1429, and §63.1430.
[§63.1427(a>] You'll  find these requirements in Table 6.
                                          72

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                                                Chapter 11 - Extended Cookout


What are the requirements for new and existing sources using
ECO?

The monitoring, recordkeeping, and reporting requirements will depend on your compliance
option. Table 16 shows these requirements for new and existing sources.
                                  73

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                                                Table 16.  Requirements for ECO4
 Affected
  Source
Compliance
   Option
Monitoring
Recordkeeping
Reporting
Existing      Option 1: Reduce
             the total epoxide
             emissions by an
             aggregated 98
             percent.
             [§63.1425(b)(2)(ii)]
                  Establish and monitor one
                  of the following parameters
                  [§63.1427(i)(2)]: time from
                  end of epoxide feed to end
                  of ECO; reactor epoxide
                  partial pressure at end of
                  ECO; epoxide
                  concentration in reactor
                  liquid at end of ECO when
                  reactor liquid is still in
                  reactor, or after reactor
                  liquid has been transferred
                  to another vessel; an
                  alternative monitoring
                  parameter approved by the
                  Administrator.
                     For batch processes, keep the following records
                     for each batch cycle.

                     Listing of all products in each product class and
                     information on operating conditions for each
                     product within a product class, including
                     information in  §63.14270(1).  Update each time
                     a product class or product is added or changed.
                     [§63.1427(1 and m)].

                     Initial determination of percent epoxide emission
                     reduction information.  Include information in
                     §63.14270X1)- Record  initial determin'ation
                     each time there is a new product or a product
                     class is added or changed. [§63.1427(1) and (m)].

                     If able to define end of epoxide feed by  reactor
                     epoxide partial pressure at time when all epoxide
                     reactants have been added to the reactor,
                     information in  §63.1427(j)( 1 )(x). If not,
                     information in  §63.1427(JXl)(i-ix).

                     For batch cycles, value of parameter monitored to
                     determine whether an excursion has occurred.
                     [§64.14270X2)001

                     Records of time and duration of any epoxide
                     emissions occurring before end of ECO.
                     [§64.14270)(2)(v)]
                                Precompliance Report
                                containing information in
                                §63.1427(k)(l)

                                within 180 days after
                                beginning production of
                                new polyether polyol
                                product, submit an
                                updated product list with
                                your next Periodic Report.
                                 [§63.1427(0(1)00]

                                initially and within 180
                                days after beginning
                                production of new
                                polyether polyol product
                                class, submit information
                                in§63.1427(k)(2XOand
                                (ii) in a Notification of
                                Compliance Status
                                Report.

                                Periodic Reports
                                containing information in
                                [§63.1427(kX3)]
                                                                 74

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                                              Table 16. Requirements for ECO*
 Affected
  Source
Compliance
  Option
Monitoring
Recordkeeping
Reporting
New         Option 1:  Reduce
             total epoxide
             emissions by an
             aggregated 99.9
             percent.
             [§63.1425(b)(l)(i)]
                  Same as above for Existing    Same as above for Existing sources, Option 1.
                  sources, Option 1.
                                                                  Same as above for
                                                                  Existing sources, Option
                                                                  1.
Existing      Option 2:  Maintain
             an emission factor of
             no greater than 1.69
             x 10'2 kilogram
             epoxide emissions
             per megagram of
             product for all
             process vents.
             [§63.1425(b)(2)(iv)]
                  Same as above for Existing
                  sources, Option 1.
                  [§63.1427(d)(3)]
                     Meet requirements in Table 6. [§63.1427(d)(4)]
                                Meet requirements in
                               "Table 6.
                                [§63.1427(d)(4)]

                                Submit estimate of annual
                                epoxide emissions after
                                extended cookout with
                                Precompliance Report or
                                operating permit
                                application.
                                t§63.1427(d)(l)]

                                Submit annual epoxide
                                emissions after extended
                                cookout with NOCS.
                                [§63.1427(dX2)]
                                                               75

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                                                          Chapter 11  - Extended Cookout
Table 16. Requirements for ECO*
Affected
Source
New
Sources
Compliance Monitoring Recordkeeping
Option
Option!: Maintain Same as above for Existing Meet requirements in Table_6. [§63. 1427(d)(4)]
an emission factor of sources, Option 1 .
no greater than 4.43
x 10"' kilogram
epoxide emissions
per megagram of
product for all
process vents.
[§63.1425(b)(l)(iii)]
Reporting
Meet requirements in
Table 6.
[§63.1427(d)(4)]
Submit estimate of annual
epoxide emissions after
extended cookout with
Precompliance Report or
operating permit
application.
t§63.1427(d)(l)]
                                                                                                       Submit annual epoxide
                                                                                                       emissions after extended
                                                                                                       cookout with NOCS.
                                                                                                       [§63.1427(dX2)J
If you use additional control devices to further reduce HAP emissions from a process vent already controlled by ECO, then you must comply with
the testing, monitoring, recordkeeping and reporting requirements for that control device under §63.1426, §63.1429, and §63.1430. [§63.1427(a)]
You'll find these requirements in Table 6.
                                                            76

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                                                         Chapter 11 - Extended Cookout

What is an excursion?
For each batch cycle where ECO is used to reduce epoxide emissions, you must record the value
of the monitored parameter at the end of the ECO and compare it with the level established in
§63.1427(2)(i)(2) to determine if an excursion has occurred. You have an ECO excursion when
any of the following events occur.
    •   The time from the end of the epoxide feed to the end of the ECO is less than the
       established minimum time. [§63.1427(i)(3)(i)]
    •   The reactor epoxide partial pressure at the end of the ECO is greater than the established
       partial pressure. [§63.1427(i)(3)(ii)j
    •   The epoxide concentration in the reactor liquid at the end  of the ECO is greater than the
       established epoxide concentration. [§63.1427(i)(3)(iii)]
    •   The necessary parameters are not measured and recorded at the end of the ECO.
       [§63.1427(i)(3)(iv)]
    •   The alternative monitoring parameter is outside of the  established range for proper
       operation of the ECO as a control technique.  [§63.1427(i)(3)(v)]

What if I use a new  polyether polyol or change operations?
If you want to use ECO when producing a new polyether polyol of if you change operations, you
must meet additional requirements according to Table 17. A change in operation includes a
change in catalyst. Polyetherpolyol has occurred if any of the following criteria is met.
[§63.1427(m)(l)]
   •   significant change in reaction kinetics
   •   different oxide reactant
   •   different EO/PO ratio
   •   lower reaction temperature
   •   lower catalyst feed on a mole/mole fraction OH basis
   •   shorter cookout
   •   lower reactor pressure
   •   different type of reaction (for example, a self-catalyzed instead of a catalyzed reaction)
   •   marked change in reaction conditions (for example, a markedly different liquid level)
                                         77

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  Table 17. Requirements when Adding Products or Changing Operations While Using
                                           ECO
If you are...
Then you must...
Making a new product in the   Update the list of products for the product class and record the
same product class            information in §63.1427(j)(l)OXA-F). [§63.1427(1X1X0]

                            Submit the updated product list within 180 days in a periodic report.
Making a new product in a
new product class or
changing operations such that
you create a new product
class
Changing operations but the
product class does not
change
Establish the batch cycle percent epoxide emission reduction.
[§63.1427(l)(2)(i); §63.1427(m)(3Xii)(A)]

Establish records in §63.1427(j)(l) for product class.
[§63.1427(0(2)(iO;§63.1427(m)(3XiO(B)]

Submit the updated product class information in §63.1427(kX2)(i) and
(ii) within 180 days in a periodic report. [§63.1427(1)0X");
§63.1427(m)(3)(iiXc)]

Update your records of the operating conditions  for the product class.
[§63.1427(m)(2)]
Changing operations such
that a product switches
product classes
Update lists of products in each product class. For the product that
switched product classes, update your records of the operating
conditions. [§63.1427(m)(3)OXA)]

Submit the updated product list within 180 days in a periodic report.
[§63.1427(m)(3)(i)(B)]
                                             78

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                    Chapter 12 - Storage Vessels


What does this chapter cover?

This chapter covers the requirements for storage vessels subject to subpart PPP.

What is  a storage vessel?

A storage vessel is a tank or other vessel that is used to store liquids that contain one or more
organic HAP. The following emission points are not considered to be storage vessels under
subpart PPP: [§63.1423]

    •   vessels permanently attached to motor vehicles such as trucks, railcars, barges, or ships

    •   pressure vessels designed to operate in excess of 204.9 kilopascals and without
       emissions to the atmosphere
    •   vessels with capacities smaller than 38 cubic meters

    •   vessels that store and/or handle material that contains no organic HAP or organic HAP as
       impurities only
    •   surge control vessels and bottoms receiver tanks

    •   wastewater storage tanks


Which storage vessels does Subpart  PPP  cover?

If your storage vessel meets all of the following criteria, then it is subject to subpart PPP and you
must meet the requirements in the rule.   [§63.1420(c) and (f)( 1)]

    •   It was not already subject to another subpart of 40 CFR part 63 on June 1, 1999
       [§63.1420(f)(l)]
    •   It is used to store liquids/material that contain one or more organic HAP.
    •   It is assigned to a PMPU subject to this rule.

The following storage vessels are part of the affected source (that is, they are subject to subpart
PPP),  but are not subject to the storage vessel requirements in subpart PPP. [§63.1420(c)]

    •   vessels that store and/or handle material that contains no organic HAP or organic HAP as
       impurities only [§63.1420(c)(8)]

    •   vessels that store organic HAP for less than 300 hours during the calendar year
                                        79

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                                                             Chapter 12 - Storage Vessels


What compliance options do I have?

You must comply with the requirements for storage vessels in the HON, which are found at
§§63.119 through 63.123 [§63.1432(a)].  The HON storage vessel provisions are not
summarized in this document, but are described at http://www.epa.gov/ttn/uatw/hon/honpg.html


Must I follow all of the HON requirements for storage vessels?

You must follow all requirements in the HON rule for storage vessels, with the following
exceptions. [§63.1432(a)J

    •   The definitions of "group 1 storage vessel" and "group 2 storage vessel" that are
       contained in §63.1423 will be used instead of the HON definition in §63.111.
       [§63.1432(c)and(d)]

    •   The definition of "storage vessel" in §63.1423 will be used instead of the HON definition
       in  §63.101.  [§63.1432(b)]

    •   The proposal date and the promulgation date for 40 CFR part 63 subpart PPP will apply
      • to  your source (in particular, when designating "new" or "existing" sources and
       determining their compliance dates) instead of the HON proposal and promulgation
       dates. [§63.1432(e)and(f>]

    •   You are not required to prepare a design evaluation for a combustion, recovery, or
       recapture device if that  device is also used to comply with the subpart PPP requirements
       for any other emission point and you have demonstrated compliance with those other
       subpart PPP requirements, provided that the performance test that you used to
       demonstrate compliance demonstrates that the device achieves the control efficiency
       required by the HON storage vessel requirements under §63.119(e)(l) or (e)(2) and the
       the performance test is  submitted as part of the Notification of Compliance Status
        [§63.1432(g)(l-2)]

    •   The term "level" applies, instead of the term "range" [as used in §63.120(d)(3)(i)]
        [§63.1432(h)]

    •   You may use the General Provisions' alternative nonopacity emission provisions in
        §63.6(g), but not the determination of equivalence criteria in the HON at §63.102(b)
        [§63.1432(o)]

    •    The compliance dates outlined in Figure 1 and described in §63.1422 apply to polyether
       polyols producers, instead of the compliance dates for storage vessels that are described
        in  the HON.  [§63.1432(p)]
                                         80

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                                                                   Chapter 12 - Storage Vessels
        You must meet the Periodic Reporting requirements in Subpart PPP instead of those in
        the HON. [§63.1432(1)]
What monitoring  must I do?
You have two options for monitoring storage vessels. Table 18 describes these options, as well
as the excursions from the requirements.
                   Table 18.  Storage Vessel Monitoring and Excursions
               Monitoring
                   Excursion
 Option 1:  Follow continuous monitoring requirements in §63.1438.
 Establish the parameters to indicate
 continuous compliance by conducting a
 performance test or using engineering
 assessment and manufacturer's
 recommendations.

 Set a daily average maximum or minimum
 level that indicates compliance for each
 parameter to be monitored.

 Include the parameters to be monitored and
 the maximum or minimum level for each
 parameter in the monitoring plan.

 Monitor each parameter at least once every 15
 minutes.
The daily average value for any parameter is above the
maximum level or below the minimum level in your
monitoring plan.

The period of combustion, recovery, or recapture is at
least 4 hours a day and you have insufficient
monitoring data for 3 or less hours.

The period of combustion, recovery, or recapture is
less than 4 hours a day and you have insufficient
monitoring data for 2 or more hours.
 Option 2: Follow the monitoring plan provisions in the HON at §63.120(d)(2)(i)
 A description of the parameter(s) to be
 monitored, to ensure that the device is being
 properly operated and maintained

 An explanation of the criteria used for
 selecting the parameters

 The frequency that the monitoring will be
 performed
The average value of one or more parameters, averaged
over the time when the liquid level in the storage vessel
is being raised, is above the maximum level or below
the minimum level.

You do not have monitoring data for at least 75 percent
of the specific intervals at which parameters are to be
monitored and recorded, during which the liquid level
in the storage vessel is being raised.
                                            81

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                                                             Chapter 12 - Storage Vessels


What records must I keep?

You must keep the records specified in the HON at §63.123 and the following parameter
monitoring records.

       •  each measured data value
       •  block average values for 1 hour or shorter periods

If you are complying with the storage vessel provisions using a monitoring plan and the
monitoring plan does not specify continuous monitoring, you must also keep the following
records.

    •   all times when the liquid level in the storage vessel is being raised, including the time
       when each filling period begins and ends  [§63.1432(q)]


What reports must I submit?

For your storage vessels, you must submit the notification and reporting requirements in the
polyether polyols production rule at in §63.1439(e), which are described below and in Chapter
Ij6 of this document, instead of the notification and reporting requirements in the HON at
§63.152(b) through (d). [§§63.1432(j) through (n) & (q) and 63.1439(e)]
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                              Table 19. Storage Vessel Reports
 Report
 Contents
 Precompliance Report
 [§63.1439(e)(4)(viii)(A)j
 description of how you intend to establish the parameter
 monitor;ng levels for each storage vessel
 Initial Notification
 [§§63.1432(n) and 63.1432(e)(3)]
 Only for new affected sources with
 an initial startup before August 30,
 1999. [§63.1439(e)(3)j
 your name and mailing address

 physical address of the affected source

 identification of the storage vessels subject to subpart PPP

 statement of whether affected source is a major source
 Notification of Compliance Status
 [§§63.1432(k) and 63.1432(e)(5)J
 specific maximum or minimum parameter monitoring level(s)
 for each storage vessel

 results for each predominant use determination
 [§63.1439(e)(5)(v)]

 If following the HON monitoring plan requirements, a
 monitoring plan with description of parameters to be monitored
 to ensure combustion, recovery, or recapture device is being
 properly operated and maintained; explanation of criteria used
 for selecting monitoring parameters; description of monitoring
 frequency; and parameter values established by performance
 test, engineering assessment, or Manufacturer's specifications
 [§63.1432(i) and 0)]
Periodic Reports
 [§63.1432(1)]
all information specified in the HON periodic reporting
requirements in §63.122(a)(4)

the daily average values of monitored parameters for all
excursions [ §63.1439(e)(6)(iii)(B)]

the periods when monitoring data were not collected
[§63.1439(e)(6)(iii)(Q]

notification of process changes that cause a change in the group
status of any storage vessel  [§63.1439(e)(6)(iii)(D)Q)]

notification if a storage vessel is added to a PMPU (and
notification of the group status of the new storage vessel)
t§63.1439(eX6)(iiiXD)(2)]
Notifications [§§63.1432(m) and
63.1439(e)(7)(i)]
inspections of storage vessels
                                              83

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                      Chapter 13 - Wastewater

What does this chapter cover?

This section covers the requirements for wastewater in §63.1433, which are based on the HON
wastewater requirements in §63.132 through 149.


What is wastewater?

Wastewater is process wastewater or maintenance water.  If a wastewater stream meets the
requirements in Table 20, it is a process wastewater stream. Wastewater that is discarded from a
PMPU that is part of an affected source is maintenance wastewater.


                          Table 20. Process Wastewater

 Each wastewater stream is a process       And the annual average flow rate is...
 wastewater stream if the total annual
 concentration of compounds in Table 4
 ofsubpartPPPis....	

 ;> 5 ppm by weight                       £ 0.02 liter per minute

 ^ 10,000 ppm by weight                   any flow rate
Which wastewater streams does Subpart PPP cover?

Subpart PPP covers all process and maintenance wastewater streams, except the following.
[§63.1420(c)]

   •   stormwater managed in segregated sewers
   •   water from fire-fighting and deluge systems in segregated sewers
   •   spills
   •   water from safety showers
   •   water from testing of deluge systems
   •   water from testing of firefighting systems

What are Group 1 and Group  2 wastewater streams?

If the process wastewater stream meets the criteria in Table 21. it is a Group 1  process
wastewater stream. All other process wastewater streams are Group 2.
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                                                                Chapter 13 - Wastewater


                        Table 21. Group 1 Process Wastewater

 Each wastewater stream is a Group 1 process         And the annual average flow rate
 wastewater stream if the total annual concentration   is...
 of compounds in Table 4 of subpart PPP is....
  £ 10,000 ppm by weight                               any flow rate

  ^ 1,000 ppm by weight	£ 10 liters per minute	



What compliance options do I have?

You must comply with the requirements for wastewater in the HON, which are found at
§§63.119 through 123. The HON wastewater provisions are not summarized in this document,
but are described at http://www.epa.gov/ttn/uatw/hon/honpg.html.


Must I follow all the HON requirements for wastewater?

You must follow all requirements in the HON rule for wastewater, with the following exceptions.

   •   Do not follow the HON requirements for new wastewater streams. Instead, follow the
       HON requirements for existing wastewater sources for all affected wastewater streams.
       [§63.1433(a)(l)]
       You are only required to control emissions of hazardous air pollutants that meet the
       definition of organic HAP in §63.1423. (In other words, you may disregard references
       to Table 8 of subpart G or to List 1 or 2 of Table 36 of subpart G in the HON wastewater
       requirements.) [§63.1433(a)(2)j

       When the HON wastewater requirements refer to the HON storage vessel requirements
       (in §§63.119 through 63.123), you should refer to the subpart PPP storage vessel
       requirements instead of the HON storage vessel requirements. [§63.1433(a)(4)]
   •   Similarly, the definitions of the terms existing affected source, new affected source.
       Group 1 wastewater stream, and Group 2 wastewater stream in subpart PPP apply to
       your polyether polyols production facility, and you may disregard the parallel
       definitions of those terms in subpart F or subpart G in the HON. [§63.1433(a)(7), (a)(8),
       Exempted wastewater streams are those in §63.1420(c), which are those described
       above.

       To apply for an alternative standard, use the procedures in the General Provisions at
       §63.6(g) instead of those in the HON at 63.102(b).  [§63.1433(a)(3>]
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                                                                Chapter 13 - Wastewater

    •   Use the compliance dates in Subpart PPP.  [§63.1433(a)(9)]
    •   You do not have to comply with the 95 percent mass removal requirement for biological
       treatment processes in §63.138(g).  [§63.1433(a)(38)]
    •   You may use Method 18 or Method 25 A to test for concentration of Table 4 compounds
       in vented gas streams exiting the combustion process.  [§63.1433(a)(19)]

What monitoring must I do?

You must monitor wastewater streams by following the continuous monitoring requirements in
§63.1438 for combustion, recovery, or recapture devices controlling each wastewater stream.
They are as follows.

    •   Establish a daily average parameter monitoring level (that indicates continuous
       compliance for each parameter to be monitored) either by conducting a performance test
       supplemented by engineering assessments and manufacturer's recommendations or by
       solely using engineering assessments and manufacturer's recommendations.
       [§§63.1433(a)(15)and(a)(16)and§63.1438(c)or(d)]

    •   Monitor each parameter at least once every 15 minutes and record either each measured
       data value or block average values for 1 hour or shorter periods.

What is  an  excursion of a monitoring parameter?

You have an excursion of a monitoring parameter if one of the following occurs.

    •   the daily average value for any parameter is above the maximum level or below the
       minimum level in your monitoring plan

    •   the period of combustion, recovery, or recapture is at least 4 hours a day and you have
       insufficient monitoring data for 3 or more  hours

    •   the period of combustion, recovery, or recapture is less than 4 hours a day and you have
       insufficient monitoring data for 2 or more hours
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                                                                 Chapter 13 - Wastewater


What records  must I keep?

You must keep the following records.

    •   a monitoring plan, including the parameters to be monitored, and the maximum or
       minimum level for each parameter monitoring level for each combustion, recovery, or
       recapture device

    •   each measured data value or block average value

    •   each daily average value for each monitored parameter

However, if all recorded values for a monitored parameter during an operating day are above the
minimum level or below the maximum level, you may just record that all values are above the
minimum level or below the maximum level. [§§63.1433(a)(6) and 63.1439(d)(l-6)]


What reports must I submit?

In addition to the general reporting requirements outlined in Chapter 16 of this document, you
must also comply with the following requirements.

    •   Submit a Notification of Compliance Status report containing the name and location of
       any Group 1  wastewater stream that is being sent to a treatment facility rather than being
       treated on site, and information on parameter levels [§§63.1433(a)(13) & (a)(17) and
       63.1439(e)(5)]

    •   Submit Periodic Reports containing the name and location (and the information required
       in the HON at §§63.122(a)(4) and 63.146(c)-(f)) of any Group 1 wastewater stream that
       is being sent to a treatment facility rather than being treated on site, as the result of a
       process change [§§63.1433(a)(14) and 63.1439(e)(6)]

    •   If you are requesting to monitor alternative monitors, you must follow the reporting
       requirements that accompany a request to monitor alternative parameters, as described in
       §63.1439(f), and you may disregard the similar HON requirements described  in
       §§63.146(a) and 63.152(g) or (e)  [§63.1433(a)(5)]
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                  Chapter 14 - Equipment Leaks


What does this chapter cover?

This chapter covers the requirements for equipment leaks subject to Subpart PPP, which are
based on the HON wastewater requirements in §63.132 through §63.147.

What is an equipment leak?

Equipment leak means emissions of organic HAP from a connector, pump, compressor, agitator,
pressure relief device, sampling connection system, open-ended valve or line, valve, surge
control vessel, bottoms receiver, or instrumentation system in organic HAP service.

What equipment leaks does this rule cover?

This rule covers leaks from all equipment in organic HAP service. Equipment that is in organic
service is any piece of equipment that contains or contacts a fluid that is at least 5 percent total
organic HAP (by weight) on an annual average  basis [§63.1423(d)(l)]

What are the requirements for equipment  leaks?

You must comply with the requirements for equipment leaks in the HON, which are found in
§§63.160 through 63.182. The HON equipment leak provisions are not summarized in this
document, but are described at http://www.epa.gov/ttn/uatw/hon/honpg.html.

Must I follow all HON  requirements for equipment leaks?

You must follow all requirements in the HON for equipment leaks, with the following
exceptions. [§63.1434(a)]

   •    You must follow the notification and reporting requirements in the polyether polyols
       production rule in §63.1439(e) [described in the Chapter 16 of this document], instead of
       the notification, recordkeeping and reporting requirements in the HON at §63.152(b)
       through (d) [§63.1434(d) through (f)]
   •    You must meet the compliance dates in subpart PPP. [§63.1434(b)]
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                                                           Chapter 14 - Equipment Leaks


When must I comply with the requirements for compressors?

For most components in HAP service, you must be in compliance on the same date as for the rest
of the source (see Figure IV For a compressor at an existing source that does not meet any of the
criteria in Table 22 (below), you must comply with the.equipment leak provisions no later than
December 1, 1999. The riile allows compressors to come into compliance at a later date if they
are being upgraded to reduce the possibility of equipment leaks. Those compressors must be in
compliance according to the dates in Table 22.


                     Table 22. Compliance Dates for Compressors

 If you upgrade the compressor and you...                         You must comply...

 replace the seal system, install a barrier fluid system, utilize a new barrier      no later than June 1,
 fluid that will require changes to the existing system, or modify the          2000
 compressor to connect it to a closed vent system                         [§63.1422(d)(l)]

 can accomplish the work without a shutdown, need additional time to get      no later than December
 parts because of factors beyond your control, and you submitted a           1, 2000
 compliance extension request prior to October 18, 1999

 cannot achieve compliance without replacing the compressor, recasting the    June 1, 2002
 distance piece, or completing design modifications to connect it to the close              .  .
 vent system.

You must comply with the surge control vessel and bottoms receiver provisions no later than
June 1,2002.

What records must I keep?

You must keep the records in the HON rule at §63.181. [§63.1434(a)]

What reports must I submit?

You must submit the reports described in Chapter 16 of this document. They must contain the
specific information for equipment leaks that is specified in the HON rule at §63.182.
                                        89

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              Chapter 15 - Heat Exchange Systems
What does this chapter cover?

This chapter covers the requirements for heat exchanger systems subject to Subpart PPP, which
are based on the requirements in the HON at §63.. 104.

What is a heat exchange system?

A heat exchange system is any cooling tower system or once-through cooling water system (for
example, river or pond water). A heat exchange system can include more than one heat
exchanger and can include an entire recirculating or once-through cooling system. [§63.101]

Which heat exchange systems does Subpart PPP cover?

Subpart PPP covers each heat exchange system used to cool process equipment in a PMPU
subject to Subpart PPP. However, the following heat exchanger systems are not covered and are
not subject to the requirements of the rule.  [§63.1435(a); §63.104(a)].

   •   The heat exchange system is operated with the minimum  pressure on the cooling water
       side at least 35 kilopascals greater than the maximum pressure on the process side.

   •   There is an intervening cooling fluid, containing less than 5 percent by weight of total
       hazardous air pollutants listed in Table 4 of Subpart PPP, between the process and the
       cooling water. This intervening fluid serves to isolate the cooling water from the process
       fluid and the intervening fluid is not sent through a cooling tower or discharged.
       Discharge does not include emptying for maintenance purposes.

   •   The once-through heat exchange system is subject to a National Pollution Discharge
       Elimination System (NPDES) permit with an allowable discharge limit of 1 ppm or less
       above influent concentration or 10 percent or less above influent concentration,
       whichever is greater.

   •   The once-through heat exchange system is subject to an NPDES permit that requires
       monitoring of a parameter(s) or condition(s) to detect a leak of process fluids into
       cooling water; specifies or includes the normal range of the parameter or condition;
       requires monitoring for the parameters selected as leak indicators no less frequently than
       monthly for the first six months and quarterly thereafter; and requirements the owner or
       operator to report and correct leaks to the cooling water when the parameter or condition
       exceeds the normal range.

   •   The recirculating heat exchange system is used to cool process fluids that contain less
       than 5 percent by weight of total hazardous air pollutants in Table 4 of Subpart PPP.
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                                                    Chapter 15 - Heat Exchange Systems

   •   The once-through heat exchange system is used to cool process fluids that contain less
       than 5 percent by weight of the total hazardous air pollutants listed in Table 4 of Subpart
       PPP.

What are the requirements for heat exchanger systems?

You must comply with the requirements for heat exchangers in the HON, which are found in
§63.104. The HON heat exchanger provisions are not summarized in this document, but are
described at http://www.epa.gov/ttn/uatw/hon/honpg.html.

Must I follow all HON requirements for heat exchanger systems?

You must follow all requirements in the HON for heat exchanger systems, with the following
exceptions.

   •   The organic HAP covered for heat exchangers. The organic HAP that are covered for
       heat exchangers are identified in the polyether polyols production rule in Table 4. Do
       not follow the HAP for heat exchangers in the HON rule at Table 4 to Subpart F.
   •   The notification, recordkeeping and reporting requirements in the HON at §63.152(b)
       through (d). Y'ou must follow the notification and reporting requirements in the polyether
       polyols production rule at in §63.1439(e). These are described in the Chapter 16 of this
       document.
   •   The compliance dates in the HON.  You must comply with the requirements for these
       emission units according to the schedule in Chapter 2 and Figure 1. [§63.1432(e) and
       (0]


What records must I keep?

You must keep the records in the HON rule at §63.104(f)(l).

What reports  must  I submit?

You must submit the reports described in Chapter 16 of this document. They must contain the
information in the HON rule at §63.104(f)(2).
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   Chapter 16 - General Recordkeeping, Notification, and
                       Reporting Requirements
What does this chapter cover?

This chapter lists and describes your general recordkeeping, notification, and reporting
requirements.  It tells you where to send your general notifications and reports, and what you
must do to meet the notification and reporting requirements.  These requirements are in addition
to the specific recordkeeping and reporting requirements that we have already described in
Chapters 6 through 15 for each type of process unit.
        General Recordkeeping    This section explains your general
        Requirements              recordkeeping requirements, including the
                                    requirements that apply to your whole facility
                                    rather than just to some process uriits. '

        Notifications               This section describes the notifications that you
                                    must submit and explains when to submit them.

        General Reporting         This section explains which reports you must
        Requirements              submit, when you must send them in, and what
                                    they must contain.


Where do I send my reports and notifications?

You must send all notifications and reports to the EPA at the applicable address or by electronic
mail. The applicable address is listed in the §63.13 for EPA Regional Offices, and State air
pollution control agencies are listed in the General Provisions.

How do I  meet the notification and reporting requirements?

If you meet all of the following criteria, then you will not be in violation of the requirements if
you do not submit a notification or report.

   •  The required information was not known in time for inclusion in the report.
   •  The owner or operator has  been diligent in obtaining the specified information,
   •  You submit the required information either in a report supplement, a request for revision
      to the operating permit, or with the first Periodic Report.
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                                           Chapter 16 - Records, Notifications, and Reports
          General Recordkeeping Requirements


What records must I keep?

You are required to keep the records specified in the General Provisions at 40 CFR part 63,
subpart A, which includes the following specific records.

    •  A start-up, shutdown, and malfunction plan [§63.1439(b)(l)]

    •  Applications for approval of construction or reconstruction as specified in §63.5
      excluding §§63.5(d)(l)(ii)(H). (d)(l)(iii), (d)(2) and (d)(3)(ii)

    •  HON equipment leak reporting and recordkeeping except as specified in §63.1343(b)-(g)
    •  Continuous records, except as in §63.1432(i), the  alternative monitoring plan for storage
      vessels


How long must I keep records?

You must keep all information, including reports and notifications, readily available for five
years. Material  from the most recent six months years must be kept on-site or accessible by a
central computer so that information may be provided within two hours after a request. You may
keep these records on paper, microfilm, computer, floppy disk, magnetic tape, or microfiche.

You are not required to keep copies of reports submitted to an EPA Regional Office. In addition,
you are not required to keep copies of reports if the EPA Regional Office has waived the
requirement for  submittal of copies of reports.
What records must I keep for Continuous Monitoring Systems?

You must keep the records in Table 23. unless an alternative recordkeeping system has been
approved or the reduced recordkeeping program is followed.
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                                              Chapter 16 - Records, Notifications, and Reports
           General Recordkeeping Requirements
              Table 23. Required Records for Continuous Monitoring Systems
 The records you must
 keep for continuous
 monitoring systems are...
The records must include...
You do not have to keep these
records if...
 CMS measurements
CMS data values for at least each 15-
minute interval OR block averages
for 1 hour or shorter periods
                        Daily averages of each continuously
                        monitored parameter
                               All recorded values for a
                               parameter are above the minimum
                               and below the maximum, you may
                               instead record that all values were
                               above the minimum and below the
                               maximum
 CMS inoperative periods
Date and time and duration for each
period CMS was inoperative,
including
source in-operation, startup,
shutdown, malfunction, and
monitoring system breakdown,
calibration, repair, low level
adjustment, high level adjustment
 CMS maintenance
Documentation of calibration checks
and maintenance procedures
according to manufacturer's
instructions
 CMS waiver of
 recordkeeping or
 reporting
Information, if any, specified as a
condition of the waiver
How do I request an alternative to continuous monitoring and
recordkeeping?

The General Provisions requirements for the use of an alternative monitoring method in
§63.8(f)(5)(i) governs the review and approval of requests. Requests must be submitted with the
Precompliance Report and include the information in Table 24.
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                                                Chapter 16 - Records, Notifications,  and Reports
          General  Recordkeeping  Requirements
                   Table 24. Requests for Alternative Monitoring
If you have...
The requested system must
provide...
Requests must include...
No automated monitoring
and recording system that
can measure once per 15-
minute interval
The ability to visually read and
record values at least one per
hour
A description of the planned
monitoring and recordkeeping
system

Documentation that the source does
not have an automated monitoring
and recording system

Justification for requesting the
alternative program

A demonstration that the proposed
monitoring frequency will
appropriately represent combustion,
recovery or recapture device
operating conditions
An automated data
compression recording
system that doesn't record
vales at a set frequency, but
records when criteria for
variation is met
A system that can measure at
least one per 15-minute period

Record at least  4 values per
hour of operation

Record the date and time the
monitors are turned off or on

Recognize unchanging data that
may signal malfunction, alert
the operator and record the
incident

Calculate daily averages of the
values based on all measured
A description of the monitoring
system and data compression
recording system

Criteria used to determine which
monitored values are recorded and
kept

The method for calculating daily
averages

A demonstration that the system
meets all the required monitoring
capabilities
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                                              Chapter 16 - Records, Notifications, and Reports

           General Recordkeeping Requirements


What is the reduced recordkeeping program?

Instead of continuous monitoring and recordkeeping, the reduced recordkeeping program allows
you to keep only daily records of a parameter value. You can discontinue recordkeeping after 6
months if you do not have any unexcused excursions. You must meet the requirements in Table
25.


                    Table 25. Reduced Recordkeeping Program

 The equipment you must have is...                      Data you must keep for this
                                                    monitoring system are...

 A monitoring system capable of detecting impossible data     Record each alarm (all alarms in one
 during periods of operation other than start-up, shutdown, or   operating day is considered a single
 malfunction, and can alert operator                       occurrence)

 A monitoring system that generates a running average of      Record all instances where running
 values, updated at least hourly, and this number is visible to    average is above maximum or below
 an observer                                          minimum limit

 A monitoring system capable of detecting unchanging data    Record all occurrences of these alerts
 when unexpected during normal operations and can alert an
 operator

 A monitoring system that will alert if the running average
 reaches a point appropriately related to the limit for that
 parameter
You must keep all of the following additional records for the reduced recordkeeping program.

   •   Verify proper functioning of monitoring system; document verifications occurred upon
       initial installation, annually after that, and after any change to monitoring system that
       may alter its functioning.

   •   Identification of each parameter and each item of equipment for which you will use the
       reduced recordkeeping program.

       Description of applicable monitoring systems and how reduced recordkeeping
       compliance will be achieved, including equipment location and record format kept.

   •   Description and date of any change to monitoring system that might affect functioning.

   •   A description of current system as long as description is current, with superseded
       descriptions kept available for 5 years, and kept tin-site for at least 6 months.
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                                            Chapter 16 - Records, Notifications,  and Reports
          General Recordkeeping Requirements

You must report using the reduced recordkeeping program in the Notification of Compliance
Status, or in the Periodic Report just before using it  if you have already submitted the
Notification of Compliance Status.


When can I stop taking daily records?

You may stop keeping daily records after 6 months if no inexcusable excursions (values below
the minimum or above the maximum) occur. The provisions you must follow if you stop taking
daily records  include all of the following:

   •   Notify the EPA of all changes in recordkeeping frequency in the next Periodic Report

   •   Identify each parameter and equipment unit for which you will stop keeping daily
       records in the notification

   •   After an inexcusable excursion, resume recording the daily average value until 6
       continuous months with no inexcusable excursions occurs

       Record and keep at least one parameter value taken during operation once per week, if no
       values are otherwise recorded
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                                            Chapter 16 - Records, Notifications, and Reports
                            Notifications

What notifications must I submit for the reduced recordkeeping
program?

You must submit notifications as indicated in Table 26. The citations in Table 26 refer to the
General Provisions at 40 CFR §§63.3 through 63.11. You must submit the notifications by the
applicable dates listed in Table 26.
                              Table 26. Notifications
 You must submit a(n)...    If you...
                        You must submit the notification ...
 Notification of compliance
 status [§63.9(h),
 §63.1439(e)(5)]
Are a new or existing
affected source
Within 150 days of compliance dates
specified in §63.1422
 Notifications of
 inspections
Meet the HON storage vessel
requirements in
§63.120(b)(a)
By the HON provisions in §63.122(h)(I)
and (2)
When must I submit an Initial  Notification?

An Initial Notification was only required all  new affected sources with an initial startup before 8-
30-99.  All other new affected sources must submit an Application for Approval of Construction
or Reconstruction. Existing affected sources are not required to submit an Initial Notification.

What must I include in the Notification of Compliance Status?

The notification of compliance must contain the information in Table 27.
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                       Table 27. Notification of Compliance Status
In the notification
you must include...
The information you must include is...
Test reports for each
test method for each
emission point
[§63.1439(e)(5)(i)]
Information required by HON in §63.182(c) for equipment leaks subject to
§63.1434

Results of any emission point group determinations

Determination that controls are needed

Process section applicability determinations

Performance test results

Inspection results

Continuous monitoring system performance evaluations

Values of monitored parameters during performance tests

Anything else from the HON for storage vessel provisions in §§63.1422(j),
63.122 or 63.1432 or process wastewater reporting provisions in §63.14

Brief process description for each emission point

Description of sampling and analysis procedures and any modifications to
standard procedures

Quality assurance  procedures

Record of operating conditions during the test

Record of preparation of standards
record of calibrations

Raw data sheets for field sampling
raw data sheets for field and lab analyses

Documentation of calculations

Any other information required by a test method to be in the test report
                                             99

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                        Table 27. Notification of Compliance Status
In the notification
you must include...
                        The information you must include is...
                        The established maximum or minimum level of the monitored parameter for
                        each emission point
Monitored parameter
maximum and
minimum level for
process vents, process    The rationale for that level
wastewater and storage
vessels                  Data and calculations used to develop the level
[§63.1439(e)(5)(ii)]
                        Description of how this level will ensure compliance

                        A definition of the source's operating day

Determination of         The primary product
applicability for
flexible operation  units
[§63.1439(e)(l)(iii)]

Parameter monitoring    The basis on which the levels were selected
levels for flexible         OR
operation units           A demonstration that the  levels are appropriate at all times
[§63.1439(e)(5)(iv)]

Results for               Determined predominant use
predominant use
determination for
storage vessels
[§63.1439(e)(5)(v)]

Option of standards      Statement of which rule's requirements will be followed if an emission point
[§63.1439(e)(5)(vi)]      is subject to this subpart and to those in §63.14220), and if §63.14220)
                        allows choice in provisions for testing, monitoring, reporting and
                        recordkeeping
Group 1 wastewater
stream or residual
transferee
[§63.1439(e)(5)(vi)]
                        Name and location of transferee

                        Description of stream or residual transferred
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                                         Chapter 16 - Records, Notifications, and Reports
                          Notifications


What must I include in the Notification of Inspection?

You must submit a statement of inspection will occur at least 30 days prior to the refilling of
each storage vessel or the inspection of each storage vessel.
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                                              Chapter 16 - Records, Notifications, and Reports
                                   Reports

What reports must I submit?

You must submit reports according to the requirements in Table 28.
                              Table 28.  Required Reports
 You must submit...     If you...
                                          You must submit the
                                          report...
 Precompliance Report
 [§63.1439(e)(4)]
Have an affected source requesting an
extension for compliance, are requesting
approval to use alternative monitoring,
recordkeeping or controls, are requesting an
approval to stop collecting monitoring data
during a start-up, shutdown or malfunction
under §63.1420(h)(3), or are requesting
approval to establish parameter monitoring
levels under §63.1438(c) or (d)
No later than 12 months
before the compliance date
                         Have a new affected source
                                          With the application for
                                          approval of construction or
                                          reconstruction
 Periodic Reports
 [§63.1439(e)(6)]
Have an existing or new affected source
No later than 60 days after
the end of each 180 day
period

The first report must be no
later than 240 days after
the date the Notification of
Compliance Status is due
 Quarterly Reports
 [§63.1439(e)(6)(viii)]
Have a combustion, recover)' or recapture
device with more excursions than allowed for
a semiannual period or the EPA requests
quarterly reports for an emission point or
process section
No later than 60 days after
the end of each 90 day
period
 Reports of changes to
 storage vessels
 [§63.1439(e)(7)(i)]
Have a source meeting HON storage vessel
provisions in §63.122(h)(l) or (h)(2)
In the Notification of
Inspection
 Reports of changes to
 the primary product for a
 PMPU or process unit
 [§63.1439(e)(7)(ii)]
Have a source meeting the provisions in
§63.1420(e)(9)or(e)(10)(iii)
Notification to the
Administrator
                                            102

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                                           Chapter 16 - Records, Notifications, and Reports
                                 Reports
                             Table 28.  Required Reports
 You must submit...     If you...
                                        You must submit the
                                        report...
 Reports for changes or
 additions to plant sites
 [§63.1439(e)(7)(iii)]
Have a PMPU or emission point subject to
provision for changes or additions to plant
sitesin§63.1420(g)(l)or(2)
180 days before
compliance date
 Alternative monitoring
 parameter report
 [§63.1439(e)(4)(iii)]
Are requesting alternative monitoring
parameters for storage vessels, process vents
or process wastewater
In the Precompliance
Report
 Alternative continuous
 monitoring and
 recordkeeping report
 [§63.1439(e)(4)(iv)]
Are requesting alternative continuous
monitoring and recordkeeping provisions
In the Precompliance
Report
What must I include  in my Precompiiance Report?

The precompliance report must contain the information in Table 29. Unless otherwise notified,
the precompliance report is automatically approved within 45 days after its receipt.
                                          103

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                             Table 29. Precompliance Report
The sections you must include are...
The information you must include in each section
is...
Any requests for extension for compliance
[§63.1439(e)(ii)]
The data outlined in the General Provisions in
§63.6(i)(6)(i)(A),(B), and (D)
Any requests for alternative monitoring
parameters
[§63.1439(e)(iii)]
A description of parameter to be monitored to ensure
it's operation is within its design limits and will meet
the emission limit

An explanation of criteria used to select the parameter

A description of the methods and procedures that will
be used to demonstrate proper operation

A schedule of the proper operation demonstration

A statement that a maximum or minimum level will be
established

A description of proposed monitoring, recordkeeping,
and reporting system, including frequency of each

Rationale of the monitoring, recordkeeping, and
reporting system if monitoring  and recordkeeping isn't
continuous or if daily average values won't be  included
in Periodic Reports
Any requests for alternative continuous
monitoring and recordkeeping requirements
[§63.1439(e)(iv)]
Information required in Table 2 of this publication
Any requests to use alternative controls
[§63.1439(e)(v)]
The intent to use alternative control
Parameter monitoring
[§63.]439(e)(viii)]
Identification of parameter monitoring procedures to
be use. Description of how parameter monitoring level
is to be established.
Any requests to stop collecting monitoring
data during a start-up, shutdown or
malfunction because it will harm the
monitoring equipment
[§63.1439(e)(vi)]
Documentation supporting claim that monitoring
equipment would be damaged if used during start-up,
shutdown or malfunction period

A request to incorporate a provision to stop collecting
monitoring data during start-up, shutdown, or
malfunction into the start-up, shutdown and
malfunction plan
                                             104

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                                       Chapter 16 - Records, Notifications, and Reports
                              Reports


When may I use a supplement to the Precompliance Report?

Supplements may be submitted to clarify or modify information already submitted, or to request
approval to use alternative monitoring parameters, alternative continuous monitoring and
recordkeeping, alternative controls, or to include a provisions in the start-up, shutdown, and
malfunction plan to stop monitoring during those times.


What must I include in my Periodic Reports?


Periodic reports must include the information in Table 30. Remember that we have already
described some additional specific information that must be included in the periodic reports for
various process units.
                                     105

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                                                  Table 30.  Periodic Reports
The sections you must
include are...
If...
The information you must include this section is..
Statement of no
compliance exceptions
[§63.1439(e)(6)(ii)]
No compliance exception
occurred in the 6 month
reporting period
Statement that no compliance exceptions occurred in the reporting period
Reports for storage
vessels and process
wastewater
t§63.1439(e)(6)(iii)]
You are complying with the
storage vessel or wastewater
provisions in §§63.1432
through 63.1433 for any
emission point
All information required by the HON for periodic reporting in §63.122(a)(4), and
§63.146(c) through (0

Daily averages of monitored parameters for all excursions

Periods when monitoring data were not collected

Notification  if a process change is made that changes group status frorr 2 to  1

Notification  if emission points or PMPU is added to an affected source, including:
•   A description of the addition

•   Notification of group status or control requirement for the additional point or all
    emission points in the PMPU

Reports of changes in identity of treatment facility or transferee of process wastewater
streams
Start-up shutdown and
malfunction reports
[§63.1439(b)(l)(ii)]
You are an affected source      Name, title, signature of official certifying accuracy
                             Records of each start-up, shutdown, and malfunction of process equipment, CMS, or
                             combustion, recovery, or recapture device during which excess emissions occurred

                             Documentation of whether procedures followed during a start-up, shutdown, or
                             malfunction were in accordance with the plan
                                                                106

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                                                   Table 30.  Periodic Reports
The sections you must
include are...
If...
The information you must include this section is..
Performance tests
You must complete any
performance tests
Test report for each test method for an emission point, containing:
Brief process description
description of sampling and analysis procedures and modification to standard
procedures
Record of operating conditions during the test
Record of preparation of standards, if appropriate
Record of calibrations
Raw data sheets for field sampling
Raw data sheets for field and lab analyses
Documentation of calculations

Information specifically required by test method to be in the test report
 for additional tests
Changes to primary
product
A change is made to the
primary product
The results of each change made to a primary product determination for a PMPU
Reevaluation of
applicability
A storage vessel begins        The results of each evaluation
receiving or sending material
to or from a process unit that
was not included in the initial
determination
Equipment leak periodic
report
You are subject to the
storage vessel provision of
the HON [§63.1434(0]
The periodic reports required by §63.182(a)(3) and §63.182(d)
                                                                 107

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                                        Chapter 16 - Records, Notifications, and Reports
                               Reports


What must I  include in my Quarterly Reports?

If you have excursions that are not excused excursions, you must submit Periodic Reports
quarterly instead of semiannually. You must include all the information required in periodic
reports for the applicable emission point or process section. You can return to semiannual
Periodic Reports when the number of excursions does not exceed the number of excused
excursions for 1 year.

How do I report process changes or additions?

If you've  added a PMPU or made process changes at your PMPU, submit a Precompliance
Report and include all of the following information: [§§63.1420(g)(4), 63.1439(e)(7)(ii)]

   •   provide a description of the process change or addition
   •   report the planned start-up date and the appropriate compliance date

   •   identify the group status of all changed or added emission points

You must submit the Precompliance Report no later than 180 days before the compliance date.
[§63.1'439(e)(7)(iii)(B)]
                                      108

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     Chapter 17 -  Other Requirements and Information
What does this chapter cover?

This chapter includes information about who regulates you, your permitting requirements, and
how the General Provisions apply to facilities subject to-subpart PPP.

Who administers this regulation?

Your State or local agency for air pollution control, or your EPA Regional Office, will regulate
you. If your plant is in Indian Country, then your Tribe or your EPA Regional Office will
regulate you. You will be regulated by more than one agency if a state, local or tribal agency has
been granted delegation of this rule.

Not all States have been granted delegation, or, if they have been granted delegation, they may
not have been delegated all portions of the rule.  Our EPA Regional Offices may also have
retained certain rights even after delegation (for example, you may continue to have dual
reporting requirements as explained in Chapter 16). You should check with your EPA Regional
Office or State for the latest information.


Do I need a Title  V permit?

You'll need a Title V permit if you're subject to the Polyether Polyols Production NESHAP.


How do I change my permit to  include this rule?

If you've already been issued a final title V permit and you have three or more years left on your
permit, your permitting authority will reopen your permit within 18 months of the publication
date of the final rule or final amendments. If you have less than three years left on your permit,
update your permit during your renewal period.  If your permit hasn't been issued in final form,
update your application or draft permit.
                                      109

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                                              Chapter 17- Other Requirements and Information

To summarize, your options are as follows.
As of 6-1-99, if you have . . .
Not been issued a final Title V permit
Less than three years left on your permit
Three or more years left on your permit
Then . . .
Update your permit application or draft permit.
Update your Title V permit during renewal.
Your permitting authority will reopen your permit
within 18 months after the publication date of the final
rule or final amendments.
Title V permitting rules may change after the publication of this document. Keep abreast of any
changes by checking the Federal Register or visit our Title V websites at
http://www.epa.gov/ttn/oarpg/t5main.html and http://www.epa.gov/oar/oaqps/permits/.


What parts of the General Provisions apply?

The General Provisions were published in the Federal Register on March 16, 1994 (Volume 59,
page 12408) and apply to all NESHAP, including the Polyether Polyols Production rule.

This means that when you became subject to this rule, you also became subject to the General
Provisions. Some sections in this rule over-ride the General Provisions. You'll find that Table 1
of the final rule shows you which sections of the General Provisions apply to this rule and which
don't. General Provision requirements, except for notification, recordkeeping, and reporting, are
not addressed in this document.
                                         110

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               Chapter 18 -  Getting Additional Help


What does this chapter cover?


This chapter gives information about where to go for help.


Where do I  go for help?


You can go to a lot of places for help, including all of the following.

    •   Your State, local or tribal agency for air pollution control
       Your State's Small Business Assistance Program (SBAP)
    •   Local, regional, or national trade associations

    •   Your EPA Regional Office

State and local contacts can change frequently. To get the most current contact information, go
to the STAPPA/ALAPCO website (www.4cleanair.org) and then the membership directory. The
directory will give you the latest contacts for major air programs (that is, emission standards for
toxic air pollutants, ozone, etc.) at the State and local level.
      Ifvou have questions about this rule, you should contact your Stale, local or Tribal agency before
             calling the EPA  Their rules may be more stringent than Federal requirements
                                        111

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                                                        Chapter 18 - Getting Additional Help
One Trade Association representing the polyether polyols industry is listed below. Trade
associations sometimes have rule information for their members.
           Trade Association               Telephone #                Address

 The Society of the Plastics Industry, Inc.       (202) 974-5200    Maureen A. Healey
 (SP1)                                                   Suite 600K
                                                        1801 K Street, NW
                                                        Washington, DC 20006-1301

 American Plastics Council (APC)           1-800-2-HELP-90   American Plastics Council
                                                        1300 Wilson Blvd., Suite 800
                                                        Arlington, VA 22209

 Alliance for Polyurethanes Industry (API)     (703) 253-0656    Alliance for Polyurethanes
                                                        Industry (API)  •
                                                        1300 Wilson Blvd., Suite 800
	Arlington, VA 22209	

Many States have a Small Business Assistance Program.  If you're a small business and don't
know how to contact your SBAP, you can call EPA's Control Technology Center Hotline [at
(919) 541-0800 or visit EPA's SBAP at www.epa.gov/oar/oaqps/sbap for help].

Contact numbers for EPA's Regional Air Division Offices may also change frequently.  To
obtain the most up-to-date information, you may want to visit your Regional Office's website.
Table 31  lists each of our Regional Offices, the Air Toxics Division Phone and Address, and the
Regions internet home page. Make all written inquiries to the attention of "Polyether Polyols
Production NESHAP Contact."

Can I get more information on the Web?

You can get a wealth of information on the World Wide Web (WWW).  Some of the more
popular ways to get information on this rule include the following.

    •   EPA's Unified Air Toxics Website (http://www.ena.pov/ttn/uatw)
       You can download copies of preambles, regulations, background information
       documents, policy memos, and other guidance materials here.  All rule pages can be
       found under the Rules and Implementation page. The Society of the Plastics Industry,
       Inc. can be found under www.plasticsindustrv.ore.

    •   EPA's Applicability Determination Index (ADI)
       (http://es.epa.gov/oeca/main/compasst/chem.htnU)
                                         112

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                                                       Chapter 18 - Getting Additional Help
        EPA's Office of Enforcement and Compliance Assurance (OECA) posts memos dealing
        with applicability and compliance at this site.

        OECA Compliance Assistance Centers (http://www.epa.gov/epahome/business.htm)
        You can find information on compliance with federal regulations at this site. There are
        centers for printing, automotive services and repair, agriculture, and metal finishing
        industries. We plan to add centers for the chemical industry, printed wiring board
        manufacture, transportation, and local governments.

    •    STAPPA/ALAPCO home page (http://www. 4cleanair. org)
        STAPPA/ALAPCO is the State and Territorial Air Pollution Program Administrators
        (STAPPA) and The Association of Local Air Pollution Control Officials (ALAPCO)
        organization. STAPPA/ALAPCO has members representing each State and local agency
        for air pollution control.

You can get air pollution information at this site, including a document entitled "Communicating
Air Quality: A Compendium of Resources." It lists educational materials on air pollution that
State and local agencies have created.
                                         113

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       Table 31.  - MACT Implementation Contact for EPA Regional Offices*
Region
Region I
Region
II
Region
III
Region
IV

Region
V
Region
VI

Region
VII
Region
VIII
Region
IX
Region
X
States
CT, ME,
MA, NH,
RI&VT
NJ.NY,
Puerto Rico
& Virgin
Islands
DE, MD,
PA, VA,
WV&DC
AL, FL,
GA, KY,
MS, NC,
SC&TN
IL, IN, MI,
WI, MN&
OH
AR, LA,
NM, OK &
TX

IA, KS,
MO&NE
CO, MT,
ND, SD,
UT&WY
AZ, CA,
HI, NV,
American
Samoa, &
Guam
AK, ID,
WA&OR
Address
Office of Environmental Stewardship (SEA) or
Office of Ecosystem Protection (CAP)
1 Congress Street, Suite 1100
Boston, MA 02114-2023
Attention: NESHAP (MACT) Contact
Division of Environmental Planning and
Protection
290 Broadway
2 1st Floor
New York, NY 10007-1866
Air Protection Division, 3 API 1 1
1650 Arch Street
Philadelphia, PA 19103-2029
Air, Pesticides and Toxics Management Division
Atlanta Federal Center
61 Forsyth Street
Atlanta, GA 30303-3104
Air and Radiation Division
77 West Jackson Blvd.
Chicago, IL 60604-3507
Multimedia Planning and Permitting Division
(6PD) or Compliance Assurance & Enforcement
Division (6EN)
1445 Ross Avenue
Dallas, TX 75202-2733
Air, RCRA and Toxics Division
901 North 5* Street
Kansas City, KS 66101
Office of Enforcement, Compliance and
Environmental Justice (ECEJ) or
Office of Partnerships and Regulatory Assistance
(OPRA)
999 18th Street
1 Denver Place, Suite 500
Denver, CO 80202-2405
Air Division
75 Hawthorne Street
San Francisco, CA 94105
Office of Air Quality
1200 Sixth Avenue
Seattle, WA 98101
Phone/Home Page
(617)918-1510
wwtv. epa. so v/resion 1
(212)637-3735
www. epa. eov/reeion2
(215)814-2056
www.epa.sov/resion3
(404) 562-9077
www.epa.sov/resion4

(312)353-2212
www. epa. sov/resion5
(214) 665-7250/
(214)665-7220
www. epa. sov/resion6

(913)551-7020
www.eiia.eov/resion 7
(303)312-70287
(303)312-6294
wwtv.eDa.eov/resion8
(415)744-1219
www. epa. sov/resion 9
(206)553-1505
www. epa. sov/reeion] 0
  * Information subject to change without notice. For the latest information, please visit the Regional Office
Website.
                                          114

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               Chapter 19-  Inspection Checklist


What does this chapter cover?

First, you will find instructions on using the inspection checklist. Then, you will find a
comprehensive checklist that you can use to determine if you are meeting all of the
requirements in Subpart PPP.  Start at the beginning of the checklist and work your way
through.


How do I use the checklist?

To complete the inspection, follow the checklist in chronological order. The checklist will
direct you regarding which questions you must answer for each part of your facility.  Here
is an overview of the questions in the checklist that apply to each part of your facility.
                                    115

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                            How do I use this checklist?
                                 Checklist Questions on Applicability
        Applicability                                                    Questions

        Is my facility subject to this rule?                                    1-2

        Is this vent, which does not use extended cookout, subject to the           3
        requirements  in the rule?

        Is this vent, which uses extended cookout, subject to the requirements in    77-78
        the rule?
Chapter 19 - Inspection Checklist                      116

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                         How do I use this checklist?
                       Checklist Questions on Process Vent Requirements

'
New Epoxide
Existing Epoxide
Groupl Batch Nonepoxide HAP
Group] Continuous Nonepoxide
HAP
Group 2 Batch Nonepoxide HAP
Group 2 Continuous Nonepoxide
HAP
Nonepoxide Organic HAP
Emissions from Catalyst
Extraction
THF
Halogenated Group 1 Process
Vents Using Tetrahydrofuran
Halogenated Group 2 Process
Vents Using Tetrahydrofuran
Process Vents Using Extended
Cookout

Monitorin
Compliance g
4-7 30-41
8-11 30-41
12-13 30-41
14-15 30-41
NA NA
16-17 30-41
18-19 30-41
20-22 30-41
23-25 30-41
26-29 30-41
68-76 77-79
Questions
Recordkeeping
42-49 unless using a
flare;
61-63 if using a flare
42-49 unless using a
flare;
61 -63 if using a flare
42-49 unless using a
flare;
61-63 if using a flare
42-49 unless using a
flare;
61-63 if using a flare
50-60
42-49 unless using a
flare;
61-63 if using a flare;
50-60 for all
42-49 unless using a
flare;
61-63 if using a flare
42-49 unless using a
flare;
61-63 if using a flare
42-49 unless using a
flare;
61-63 if using a flare
42-49 unless using a
flare;
61-63 if using a flare
80-101

Reportin
g
64-76
64-76
64-76
64-76
NA
64-76
64-76
64-76
64-76
64-76
102-106
Chapter 19 - Inspection Checklist
117

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                           How do I use this checklist?

       The requirements for storage tanks, wastewater, equipment leaks, and heat exchangers are
       the same as those in the Hazardous Organic NESHAP (HON). You will find inspection
       checklists for storage tanks, equipment leaks, and  wastewater at the following address:
       http://www.epa.gov/ttn/uatw/hon/honpg.html.  You will find the requirements for beat
       exchangers in the HON rule at §63.104.
                                Checklist for Other Emission Points

        Storage Vessels             HON Inspection Checklist, Chapter 7, pg. II-37

        Wastewater               HON Inspection Checklist, Chapter 8, pg. II-61

        Equipment Leaks           HON Inspection Checklist, Chapter 9, pg. 11-86

        Heat Exchangers           Compliance     Monitoring      Records       Reports
                                 §63.104(a),      §63.104(b-c)     §63.104(0(1)   §63.104(f>(2)
                                 (d), and (e)
Chapter 19 - Inspection Checklist                     118

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       Inspection Checklist for Compliance with Subpart PPP,

                       Polyether Polyol Production


      General Information


       Facility Name               	

       Facility Location             	



       Facility TRI ID#             	

       Date of Inspection            	^^^


       Inspector(s)

       Name                               Title/Affiliation            Phone
                                                                  Number
      If you answer YES to both questions 1 and 2, your facility is subject to the rule. If you
      answer no to either question, do not continue. This rule does not apply to your facility.
Chapter 19 - Inspection Checklist                 119

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                                      Applicability
        Facility Applicability
        #    Question                                               Answer           Comments

        1.    My facility contains a group of one or more process units that     n Yes  D No
             manufacture polyether polyols as their primary product (i.e.,
             polyether polyol manufacturing process units, or PMPU).
             |§63.1420(a)(2);(e)]

        2.    My facility is a major source (that is, emits at least 10 tons/yr of   O Yes  D No
             any HAP OR at least 25 tons/yr of any combination of
             Hazardous Air Pollutants (HAP)]. |§63.1420(a)(2)]
       Even if you answered yes to questions 1 and 2, some parts of your plant may be exempt from the
       requirements of this rule. Do not complete this checklist for any of the following.

           •   Polyether polyol processes devoted solely to research and development of new products
              and processes. (§63.1420(d)(l)]

           •   Solvent reclamation, recovery or recycling operations at a hazardous waste treatment,
              storage, and disposal facility (TSDF) requiring a permit under CFR part 270 that is not
              part of a Polyol Manufacturing Process Unit (PMPU) to which this rule applies.
              I§63.1420(d)(2)]

           •   Reactions or processes that occur after epoxide polymerization and all catalyst removal
              steps are complete. [§63.1420(d)(3)]
       If you answered yes to questions 1 and 2, you will need to answer questions for each part of your
       plant. Start with question 3 and answer each question that applies to you.
Chapter 19 - Inspection Checklist                         120

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         Compliance for Process Vents Without Extended Cookout
       This section covers requirements for all types of process vents located at PMPU that do not use
       extended cookout. The checklist requirements for process vents using extended cookout begin with
       question 77.


       Compliance Options for  Process Vents Using  Epoxides


         Applicability
#
3.
Question
Are vou using epoxides in the production of polyether polyols?
|§63il425(b)]
Answer Comments
OYes DNo
       If you answer no to question 3, skip to question 12. The process vent is not subject to the
       compliance requirements in questions 4 through 11 for process vents using epoxides to produce
       polyether polyols.  It may, however, be subject to other requirements in the rule.

       For each new process vent using epoxides to produce polyether polyols, to be in compliance you
       must answer yes to one of the following questions 4-7. In the comments column, list the
       identification number of each process vent using epoxides to produce polyether polyols that is
       using the identified compliance option.


         Compliance Options for New Epoxide Process Vents

         #    Question                                             Answer          Comments

         4.    I am reducing total epoxide emissions from the group of process   D Yes  a No
             vents by an aggregated 99.9 percent. (§63.142S(b)(l)(i)]

         5.    I am maintaining an outlet concentration of total epoxides or     D Yes  D No
             TOC after each combustion, recapture, or recovery device of 20
             ppmv or less. |§63.1425(b)(l)(ii)|

         6.    I am maintaining an emission factor of no greater than 4.43 x 10*   D Yes  D No
             3 kilogram epoxide emissions per megagram of product for all
             process vents in the PMPU. |§63.1425(b)(l)(iii)I

         7.    I am reducing total epoxide emissions from a group of process     D Yes  O No
             vents by an aggregated 99.9 percent, then maintain an outlet
             concentration of total epoxides or TOC (after each combustion,
             recapture, or recovery device) of 20 ppmv or less, for all other
             process vents in the PMPU. |§63.142S(b)(l)]
Chapter 19 - Inspection Checklist                         121

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        Compliance for Process Vents Without Extended Cookout
       For each existing process vent using epoxides to produce polyether polyols, to be in compliance you
       must answer yes to one of the following questions 8-11. In the comments column, list the
       identification number of each existing process vent using epoxides to produce polyether polyols
       that is using the identified compliance option.


        Compliance Options for Existing Epoxide Process Vents

        #    Question                                             Answer          Comments

        8.    I am reducing the total epoxide emissions from each process      O Yes O No
             vent using a Hare. |§63.142S(b)(2)(i) J

        9.    I am reducing the total epoxide emissions from the group of      D Yes d No
             process vents by an aggregated 98 percent. [§63.1425(b)(2)(ii)|

        10.   I am maintaining an outlet concentration of total epoxides or     D Yes D No
             TOC after each combustion, recapture, or recovery device of 20
             ppmv or less. |§63.142S(b)(2)(iii)]

        11.   I am maintaining an emission factor of no greater than 1.69 x     D Yes D No
             10  kilogram epoxide emissions per megagram of product (1.69
             x 10  pounds epoxide emissions per 1,000 pounds of product)
             for all process vents in the PMPU. l§63.1425(b)(2)(iv)]


       Compliance Options for Nonepoxide HAP Emission  Process Vents


       For each Group 1 combination of batch process vents using nonepoxide organic HAP to make or
       modify polyether polyols, to be in compliance you must answer yes to one of the following
       questions 12 -13. Do not answer these questions for Group 2 batch process vents. There are no
       control requirements for Group 2 batch process vents. Requirements for continuous process vents
       are found in questions 14-17. In the comments column, list the identification number of each
       process vent that is using the identified compliance option.


        Compliance Options for Nonepoxide Organic HAP Emissions from Group 1 Batch Process Vents	

        #    Question                                                     Answer       Comments

        12.   Are you reducing nonepoxide organic HAP emissions from each process    D Yes D No
             vent using a Hare? |§63.1425(c)(l)(i)|

        13.   Are you reducing nonepoxide organic HAP emissions by 90% using a      D Yes D No
         	combustion, recapture, or recovery device? (§63.1425(c)(l)(ii)]
Chapter 19 - Inspection Checklist                         122

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         Compliance for Process Vents Without Extended Cookout
        For each Group 1 continuous process vent using nonepoxide organic HAP to make or modify
        polyether polyols, to be in compliance you must answer yes to one of the following questions 14-15.
        Requirements for Group 2 continuous process vents are found in questions 16-17. In the
        comments column, list the identification number of each Group 1 continuous process vent that is
        using the identified compliance option.

         Compliance Options for Nonepoxide Organic HAP Emissions from Group 1 Continuous Process Vents

         #    Question                                                      Answer      Comments

         14.   Are you reducing nonepoxide organic HAP emissions from each process    b Yes D No
              vent using a flare? [§63.1425(c)(3)(i)l
         15.   Are you reducing nonepoxide organic HAP emissions by 98% using a      D Yes D No
              combustion, recapture, or recovery device? (§63.1425(c)(3)(ii)]

        For each Group 2 continuous process vent using nonepoxide organic HAP to make or modify
        polyether polyols, to be in compliance you must answer yes to one of the following questions 16-17.
        In the comments column, list the identification  number of each Group 2 continuous process vent
        that is using the identified compliance option.

         Compliance Options for Nonepoxide Organic HAP Emissions from Group 2 Continuous Process Vents

         #    Question                                                      Answer      Comments
         16.   If the TRE for the process vent is between 1.0 and 4.0, are you monitoring  d Yes D No
              according to §63.1429(a), keeping records according to §63.1420(d), and
              recalculating the TRE index value when process changes occur according
              to §63.1428(h)(2)? [§63.1425(c)(4)(i)]
         17.   If the TRE for the process vent is above 4.0, are you calculating the TRE   D Yes D ,\o
              value when process changes occur according to §63.1428(h)(2)?
              |§63.1425(c)(4)(ii)]
Chapter 19 - Inspection Checklist                         123

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       Compliance for Process Vents Without Extended Cookout
      Compliance Options for Nonepoxide Organic HAP Emissions from
      Catalyst Extraction

      If you are using nonexpoxide organic HAP emissions to produce polyether polyols using catalyst
      extraction, to be in compliance you must answer yes to either question 18 or 19 for each process
      vent. In the comments column, list the identification number of each process vent that is using the
      identified compliance option.
Compliance Options for Nonepoxide Organic HAP Emissions from Catalyst Extraction
#
18.
19.
Question Answer
Are you reducing nonepoxide organic HAP emissions from each process D Yes Q No
vent associated with catalyst extraction using a flare? (§63.1425(d)(l)]
Are you reducing emissions of nonepoxide organic HAP from all process D Yes n No
vents associated with catalyst extraction by 90% overall for each PMPU?
[§63.1425(d)(2)J
Comments


      Compliance Options for Non-halogenated Group 1 Process Vents

      Using Tetrahydrofuran


      For each non-halogenated Group 1 process vent in a PMPU that uses tetrahydrofuran (THF) to
      produce one or more polyether polyol products, to be in compliance you must answer yes to at least
      one of the questions 20-22.


       Compliance Options for Non-halogenated Group 1 Process Vents Using Tetrahydrofuran

       #    Question                                                Answer     Comments

       20.   Are you reducing organic HAP emissions using a flare? (§63.113(a)(l)|     Q Yes  D No

       21.   Are you reducing emissions of total organic HAP by 98 weight percent or    D Yes  D No
            to a concentration of 20 ppmv? (§63.113(a)(2)]

       22.   Are you achieving and maintaining a TRE index value greater than 1.0 at   D Yes  D No
            the outlet of the final recovery device, or prior to release of the vent
            stream to the atmosphere? |§63.113(a)(3)]
Chapter 19 - Inspection Checklist                      124

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        Compliance for Process Vents Without Extended Cookout
       Compliance Options for Halogenated Group 1 Process Vents Using

       Tetrahydrofuran


       For each halogenated Group 1 process vent in a PMPU that uses tetrahydrofuran (THF) to
       produce one or more polyether polyol products, to be in compliance you must answer yes to
       question 23, and to question 24 or 25, if applicable.


        Compliance Options for Halogenated Group 1  Process Vents Using Tetrahydrofuran

        #     Question                                                     Answer       Comments

        23.   If you are using a combustion device to reduce organic HAP emissions to   D Yes O No
              98 percent or to a concentration of 20 ppmv, is the vent stream exiting the
              combustion device ducted to a halogen reduction device before it is
              discharged to the atmosphere? |§63.113(c)(l)]

        24.   If the halogen reduction device was installed  on or after September 4,      n Yes n No
              1997, does it reduce overall emissions of hydrogen halides and halogens by
              99 percent, or reduce the outlet mass of total hydrogen halides and
              halogens to less than 0.45 kg/hr? (§63.113(a)(l)(i)]

        25.   If the halogen reduction device was installed  prior to September 4,1997,    D Yes D No
            •  does it reduce overall emissions of hydrogen halides and halogens by 95
              percent, or reduce the outlet mass of total hydrogen halides and halogens
              to less than 0.45 kg/hr? |§63.113(a)(l)(ii)]
Chapter 19 - Inspection Checklist                         125

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        Compliance for Process Vents Without Extended Cookout
      Compliance Options for Group 2 Process Vents Using

      Tetrahydrofuran


      For each Group 2 process vent in a PMPU that uses tetrahydrofuran (THF) to produce one or
      more polyether polyol products, to be in compliance you must be able to answer yes to question 26,
      27,28, or 29, as appropriate.


        Compliance Options for Halogenated Group 2 Process Vents Using Tetrahydrofuran

        #    Question                                                   Answer      Comments

        26.   If your Group 2 process vent has a flow rate greater than or equal to 0.005  D Yes d No
             scmm, a HAP concentration greater than or equal to 50 ppmv, and a TRE
             index value greater than 1.0 but less than 4.0, are you maintaining the
             TRE index value above  1.0? (§63.113(d)]

        27.   If your Group 2 process vent has a TRE index value greater than or equal   O Yes O No
             to 4.0, are you maintaining the TRE index value above 4.0? [§63.113(e)|

        28.   If your Group 2 process vent has a flow rate less than 0.005 scmm, are you  O Yes O No
             maintaining the flow rate at less than 0.005 scmm? |§63.113(01

        29.   If your Group 2 process vent has a HAP concentration less than 50 ppmv,   O Yes O No
             are you maintaining the HAP concentration below SO ppmv? |§63.113(g)]
Chapter 19 - Inspection Checklist                        126

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          Monitoring for Process Vents Without Extended  Cookout

        The monitoring requirements for all types of process vents without extended cookout are the same.
        Questions 30-41 apply to epoxide HAP emissions, nonepoxide organic HAP emissions, catalyst
        extraction, and process vents using THF. You are meeting the monitoring requirements if you
        answer yes to all portions of questions 30-41 for each of these types of process vents, as
        appropriate. List the identification number for each control device in  the comments column.

          Monitoring Requirements for Any Process Vent Without Extended Cookout
#
30.
Question
Is each incinerator equipped with a temperature monitoring
device with a continuous recorder? (§63.1429(a)(l)]
Answer Comments
DYes a No
         31.   Is the monitoring device for each incinerator that is not a        DYes  D No
               catalytic incinerator installed in the firebox of the ductwork
               immediately downstream of the firebox in a position before any
               substantial heat exchange occurs? |§63.1429(a)(l)(i)]

         32.   For each catalytic incinerator, is the temperature monitoring    O Yes  Q No
               device installed in the gas stream immediately before and after
               the catalyst bed? [§63.1429(a)(l)(ii>]

         33.   Is each flare equipped with a device capable of continuously     DYes  D No
               detecting the pilot flame presence? [§63.1429(a)(2)|

         34.   Is each boiler or process heater of less than 44 megawatts        D Yes  D No
               design heat input capacity equipped with a temperature
               monitoring device with a continuous recorder in the firebox?
               j§63.1429(«)(3)]

         35.   Is either a scrubbing liquid flow rate meter, a pressure         D Yes  D No
               monitoring device, or an organic monitoring device equipped
               with a continuous recorder installed on each absorber?
               l§63.1429(a)(4)]

         36.   If you are using acid or base absorbent, is each absorber        DYes  D No
               equipped with a pH monitoring device to monitor scrubber
               effluent? (§63.1429(a)(4)j

         37.   Is each  condenser equipped with either a  condenser exit         D Yes  D No
               temperature (product side) monitoring device or an organic
               monitoring device equipped with a continuous recorder?
         38.    Is each carbon adsorber equipped with an integrated           D Yes  D No
               regeneration stream flow monitoring device with an accuracy
               of at least +10 percent or better, capable of recording the total
               regeneration stream mass or volumetric flow for each
               regeneration cycle, and a carbon bed temperature monitoring
               device capable of recording the carbon bed temperature after
               each regeneration and within IS minutes of completing any
               cooling cycle? (§63.1429(a)(6)j
Chapter 19 - Inspection Checklist                           127

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         Monitoring for Process Vents Without Extended Cookout
         Monitoring Requirements for Any Process Vent Without Extended Cookout

         #    Question                                                Answer           Comments

         39.   For each process vent system that contains bypass lines that      D Yes  O No
              could divert a process vent stream away from a required
              combustion, recovery, or recapture device, have you either
              installed a flow indicator at the entrance to the bypass line or
              secured the bypass line with a car lock and seal? [§63.1429(c)J

         40.   If you have installed a flow indicator at the bypass line, does it    O Yes  D No
              take a reading approximately every 15 minutes?
              |§63.1429(c)(l)J               ]

         41.   If you have a car lock and seal, do you visually inspect the seal    O Yes  O No
              or closure mechanism at least once every month?
              |§63.1429(c)(2)]
Chapter 19 - Inspection Checklist                          128

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      Recordkeeping for Process Vents Without Extended Cookout

       For each new source and each existing source not using a flare for emission control, you are
       meeting the recordkeeping requirements if you answer yes to each portion of questions 42-49 for
       each process vent, as appropriate. List the identification number for each control device in the
       comments column.

       To meet the recordkeeping requirements for each Group 2 process vent, you must also answer yes
       to questions 50-54.
Records for Process Vents without Extended Cookout
#
42.
43.
44.
Question
If you're complying using a thermal incinerator, do you keep the
following records? |§63.1430(d)(l) and Table 5 of Subpart PPP]
• Continuous records of firebox temperature
• Average firebox temperature during performance test
• Daily average firebox temperature
If you are complying using a catalytic incinerator, do you keep the
following records? |§63.1430(d)(l) and Table 5 of Subpart PPP]
• Continuous records of the temperature upstream and downstream of
the catalyst bed
• Average upstream and downstream temperatures
• Average temperature difference across the catalyst bed during
performance test
• Daily average upstream temperature
• Daily average temperature difference across the catalyst bed
If you are complying using an absorber for process vents from batch unit
operations, do you keep the following records? [§63.I430(d)(l) and Table
5 of Subpart PPP]
• Either the liquid flow rate into or out of the scrubber, or pressure
drop across the scrubber every 15 minutes
• Either the average liquid flow rate into or out of the scrubber, or
average pressure drop across the scrubber
• pH of the scrubber effluent recorded once daily
• Average pH of scrubber effluent during performance test
Answer Comments
DYes P No
OYes D No
DYes DNo
OYes ONo
DYes ONo
DYes DNo
DYes DNo
DYes DNo
DYes DNo
D Yes D No
DYes DNo
DYes DNo
Chapter ] 9 - Inspection Checklist                      129

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      Recordkeeping for Process Vents Without Extended Cookout
         Records for Process Vents without Extended Cookout
         #     Question                                                            Answer       Comments
         45.    If you are complying using an absorber for process vents from continuous
               unit operations, do you keep the following records? |§63.1430(d)(l) and
               Table 5 of Subpart PPP]
               •   Continuous records of the exit temperature and specific gravity of      D Yes  D No
                   absorbing liquid                                                Q ^  p ^
               •   Exit temperature and specific gravity of absorbing liquid averaged
                   over full period of TRE determination
               •   Daily average exit temperature and specific gravity ?
         46.    If you are complying using a condenser, do you keep the following
               records? (§63.1430(d)(l) and Table 5 of Subpart PPP]
               •   Continuous records of exit (product side) temperature                O Yes  D No
               •   Average exit temperature during performance test (for batch unit      „.,   _ .,
                   operations) or during TRE determination (for continuous unit
                   operations)
         47.    If you are complying using a carbon  adsorber, do you keep the following
               records? |§63.1430(d)(l) and Table 5 of Subpart PPP)
               •   Total regeneration stream  mass or volumetric flow for each carbon     D Yes  D No
                   bed regeneration cycle, including during the performance test or TRE
                   determination                                                 n Yes  D No
               •   Temperature of the carbon bed  after each regeneration and within 15
                   minutes of completing any cooling cycles, including during
                   performance test or TRE determination
         48.    If you are complying using an absorber, condenser, and carbon adsorber,
               do you keep the following records? [§63.1430(d)(l) and Table 5 of Subpart
               PPP]
               •   Continuous records of concentration level or reading indicated by the   D Yes  D No
                   organic monitoring device  at the outlet of the recovery device
               •   Average concentration or reading during performance test or TRE     D Yes  D No
                   determination                                                 Q YM  D ^
               •   Daily average concentration level  or reading
Chapter 19 - Inspection Checklist                            130

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       Recordkeeping for Process Vents Without Extended Cookout
         Records for Process Vents without Extended Cookout
         #     Question                                                          Answer       Comments

         49.   If you are complying using a boiler or process heater, do you keep the      D Yes  D No
               following record? [§63.1430(b)(2)(iii)]

               •   A description of the location at which the process vent is introduced

                   into the boiler or process heater

                                                                              DYes  DNo
               In addition, if you have a new source and are complying by maintaining an
               emission factor no greater than 4.43 x 103kg epoxide emissions per Mg
               product, do you keep the following records for your boiler or process
               heater with a design heat capacity of less than 44 megawatts?
               |§63.1430(b)(2)(iv)]

               •   Records of the percent reduction of organic HAP or TOC, if the
                   process vent steam is introduced with combustion air or is used as a

                   secondary fuel not mixed with primary fuel

                                                                              D Yes  D No
               OR, if the process vents are not introduced or used with the primary fuel,   ._..,    ....,
               do you have the following records?                                  a .,      N
               •   Continuous records of firebox temperature

               •   Average firebox temperature during performance test

               •   Daily average firebox temperature
Chapter 19 - Inspection Checklist                           131

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      Recordkeeping  for Process Vents Without Extended Cookout


       For each Group 2 process vent that is associated with the use of nonepoxide organic HAP to make
       or modify the product, you are meeting the recordkeeping requirements for the Group 2
       determination if you answer yes to questions 50-54. You will need the Group 2 Determination
       records to demonstrate that each process vent is not a Group 1  process vent. If you are declaring
       all process vents as Group 1 process vents, you do not need the  records in questions 50-54.


        Records for Group 2 Determination for Process Vents Using Nonepoxide HAP

        #     Question                                                        Answer        Comments

        50.   Do you have a record of the description and the emission estimate for each  n Yes o No
              batch emission episode and the total emissions associated with one batch
              cycle for each unique product class in the PMPU? [§63.1430(e)(l)(i)l

        51.   Do you have a record of the total annual uncontrolled TOC or nonepoxide  D Yes D No
              organic HAP emissions from the combination of process vents form batch
              unit operations associated with the use of nonepoxide organic HAP to
              make or modify the product? [§63.1430(e)(l)(ii)]

        52.   If the total annual emissions are 11,800 kg per year or more, do you have a  D Yes O No
              record of the annual average flow rate for the combination of process
              vents from batch unit operations associated with the use of organic HAP
              to make or modify the product? (§63.1430(e)(l)(iii)]

        53.   If the total annual emissions are 11,800 kg per year or more, do you have a  D Yes O No
              record of the cutoff flow rate?  |§63.1430(e)(l)(iv)]

        54.   Do you have a record of the measurements and calculations performed to   D Yes O No
              determine the TRE index value of each continuous process vent stream?
              |§63.1430(e)(l)(vii)]
Chapter 19 - Inspection Checklist                          132

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       Recordkeeping for Process Vents Without Extended Cookout


        For each Group 2 process vent that is associated with the use of nonepoxide organic HAP to make
        or modify the product, you are meeting the recordkeeping requirements if you answer yes to
        questions 55- 60.


          Records for Group 2 Process Vents Using-Nonepoxide HAP

          #     Question                                                          Answer        Comments

          55.   For each combination of batch process vents, do you have a record of the    D Yes  O No
               combined total annual nonepoxide organic HAP emissions?
               |§63.1 430(0(1)]

          56.   For each continuous process vent using a recovery device to achieve a       D Yes  D No
               TRE index value greater than 1.0 but less than 4.0, do you have a
               continuous record of the equipment operating parameters?
         57.   For each continuous process vent using a recovery device or means other    D.Yes  .Cl No
               than a carbon adsorber to achieve a TRE index value greater than  1.0 but
               less than 4.0, do you have records of the daily average value of each
               continuously monitored parameter for each operating day?
               [§63.1430(0(2)00]

         58.   For each continuous process vent with TRE index value greater than 4.0     O Yes  D No
               or 1.0, do you have a record of process changes and a record of any
               recalculation of the TRE value? (§63.1430(l)(3)(i) and (ii)]

         59.   For each continuous process vent complying by maintaining a flow rate     O Yes  Q No
               less than 0.005 standard cubic meters  per minute, do you have a record of
               any process changes that increase the vent stream flow rate and any
               recalculation or measure of the flow rate? |§63.1430(f)(4)(i) and (ii)]

         60.   For each continuous process vent complying by maintaining a total         D Yes  D No
               organic concentration less than 50 ppmv, do you  have a record of any
               process changes that increase the total organic concentration and a record
               of the recalculation or measurement of the concentration?
               |§63.1430(f)(5)(i) and (ii)]
Chapter 19 - Inspection Checklist                           133

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      Recordkeeping for Process Vents Without Extended Cookout

       For each process vent using a flare for emission control, you are meeting the recordkeeping
       requirements if you answer yes to questions 61-63.

         Records for Flares
         #    Question                                                         Answer       Comments
         61.   Do you have records of the flare design? |§63.1430(b)(l)J                 D Yes D No
         62.   Do you have the following records from flare specification determination?
              (§63.1430(b)(l)]
              •   All visible emission readings  .                                  D Yes D No
                  „,,.,..                                      O Yes O No
              •   Heat content determinations                                    _ v   _. N
              •   Flow rate determinations                                      D Yes O No
              •   Exit velocity determinations
         63.   Do you have the following records for each operating period? [Table 5 of
              Subpart PPP)
              •   Hourly records of whether the monitor was continuously operating     D Yes D No
                  during batch emission episodes selected for control                  _...   _ ...
                      fe              K                                      D Yes O No
              •   Hourly records of whether a flame was continuously present at the
                  pilot light during batch emission episodes selected for control         „ ,,   „ N
              •   Records of the presence of a flame at the pilot light over the full
                     .,,,.,..                                DYes DNo
                  period of compliance determination
              •   Records of the time and durations of all periods when any flames
                  were absent or the monitor was not monitoring
Chapter 19 - Inspection Checklist                           134

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          Reporting for Process Vents Without Extended  Cookout


        For each process vent that is not using ECO, you are meeting the process change periodic
        reporting requirements if you answer yes to questions 64-66.


         Process Change Reports for Process Vents without Extended Cookout

         #     Question                                                 Answer           Comments

         64.    If you have made a process change that caused a Group 2         O Yes  Q No
               combination of batch process vents to become a Group 1
               combination of batch process vents, did you submit a report
               within 180 days after the process change ?

               Did the report include a description of the process change?       D Yes  Q No
               (§63.14300)]

         65.    If you have made a process change that causes a Group 2         O Yes  O No
               process vent from a continuous unit operation to become a
               Group 1 process vent from a continuous unit operation, did you
               submit a report within 180 days after the process  change, either
               in a Periodic Report or in a separate submittal to  the
               Administrator?

               Did the report include a description of the process change, a      O Yes  D No
               statement that you intend to comply with the requirements for a
               Group 1 process vent from a continuous unit operation, the
               results of the recalculation of the TRE index value?
               ]§63.1430(j)l

         66.    If you wish to use an alternative combustion, recovery, or         O Yes  D No
               recapture device to monitor an alternative parameter, or to use
               extended cookout and monitor an alternative parameter, did
               you submit a plan of your planned reporting and  recordkeeping
               procedures as part of your Precompliance Report?
               [§63.1430(k)l
Chapter ] 9 - Inspection Checklist                            135

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          Reporting for Process Vents Without Extended  Cookout


       For each process vent that is not using ECO, you are meeting the Notification of Compliance
       Status reporting requirements if you answer yes to questions 67-71.  List the identification
       number for each control device in the comments column.


         Notification of Compliance Status for Process Vents without Extended Cookout	

         #     Question                                                  Answer            Comments

         67.    If you are using a flare to comply with the process vent
               requirements, did you report the following? |§63.1430(g)]

               •    flare design (i.e., steam-assisted, air-assisted, or non-        D Yes  D No
                   assisted)

               •    all visible emission readings, heat content determinations,
                   flow rate determination, exit velocity determinations made   DYes  D No
                   during the flare specification determination

               •    all periods during the flare specification determination
                   when all pilot flames were absent.
                                                                      DYes  DNo

         68.    If you are using a combustion, recovery, or recapture device
               other than a flare to comply with the process vent requirements,
               did you report the following? |§63.1430(g)]

               •    percent reduction of organic HAP or TOC achieved, if you   DYes  D No
                   are complying with the percent reduction or annual
                   epoxide emission limitations.

               •    concentration of organic HAP or TOC at the outlet of the
                   combustion device if you are complying with an outlet
                   concentration limitation                               Q Yes  O No

         69.    If you are using a boiler or a process heater, did you  include a   DYes  DNo
               description of the location at which the process  vent is
               introduced into the boiler or process heater? (§63.1430(g)]

         70.    If you are using a boiler or process heater with  a design heat     DYes  DNo
               capacity of less than 44 megawatts and the process vent stream
               is introduced with combustion air or is used as a secondary fuel
               and is not mixed with the primary fuel, did you report the
               percent reduction of organic HAP or TOC achieved?
               |§63.1430(g)]
Chapter 19 - Inspection Checklist                            136

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          Reporting for Process Vents Without Extended  Cookout


         Notification of Compliance Status for Process Vents without Extended Cookout	

         #  .   Question                                               Answer           Comments

         71.    Did you include the following information? |§63.1430(g)]

               •   Documentation showing the establishment of each          O Yes  O No
                  parameter monitoring level that indicates that a
                  combustion, recovery, or recapture device is operated in a
                  manner that ensures compliance

               •   Documentation of parameter monitoring data used to       O Yes  D No
                  establish parameter monitoring levels

               •   Information used to perform the group determination for    E Yes  O No
                  each Group 2 process vent or combination of process vents
Chapter 19 - Inspection Checklist                          137

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          Reporting for Process Vents Without  Extended Cookout


       For each process vent that is not using ECO, you are meeting the periodic reporting requirements
       if you answer yes to questions 72-76.


         Periodic Reports for Process Vents without Extended Cookout

         #      Question                                                 Answer           Comments

         72.    For each periodic report, did you report the daily average        G Yes  O No
               values of monitored parameters for all operating days when the
               daily average values recorded were above the maximum, or
               below the minimum, level established in the Notification of
               Compliance Status ?  |§63.1430(h)(l)]

         73.    For each periodic report, did you report all periods in which a    D Yes  D No
               seal or closure mechanism is broken, a bypass line valve
               position has changed, or the key to unlock the bypass line valve
               has been checked out [§63.1430(h)(4)J

         74.    For each periodic report, did you report the times  and           d Yes  O No
               durations of all periods during which a flare had no pilot flame
               present? |§63.1430(h)(5)l

         75.    For each periodic report, did you report the duration of periods   D Yes  D No
               when monitoring data was not collected, for each excursion
               caused by insufficient collection of monitoring data?
               (§63.1430(h)(2)]

         76.    For each periodic report, did you report the times  and           O Yes  D No
               durations of all periods when the process vent stream is
               diverted away from the combustion, recovery, or recapture
               device through a bypass line? [§63.1430(h)(3)l
Chapter 19 - Inspection Checklist                           13 8

-------
         Requirements for Process Vents  Using Extended Cookout


         Applicability for Process Vents Using Extended Cookout

         #     Question                                                         Answer       Comments

         77.    Are you using ECO as a control technique to reduce epoxide emissions by   O Yes O No
               99.9% for new sources or 98% for existing sources? |§63.1427(a)]

         78.    For sources using epoxides, are you using ECO to maintain an emission     Q Yes Q No
               factor no greater than 4.43 x 10° for new sources or 1.69 x 102 for existing
               sources? [§63.1427(a)l	


        If you answered NO to questions 77 and 78, do not continue.  The process vent is not subject to
        these requirements. If you answered yes to either question 77 or 78, you must follow the extended
        cookout (ECO) requirements.  You are in compliance with ECO requirements if you answer yes to
        questions 79- 87.  List the identification number of each control device in the comments column.


         Compliance Requirements for Process Vents Using  Extended Cookout

         #     Question                                                         Answer       Comments

         79.    Did you determine the batch cycle percent epoxide emission reduction for   n Yes O No
               the polyether polyol that is manufactured with the slowest pressure decay
               curve? [§63.1427(a)(l)]

         80.    Unless uncontrolled epoxide emissions prior to the end of the ECO are     Q Yes Q No
               under 10 tons per year, did you determine the batch cycle emission
               reduction by directly measuring the concentration of unreacted epoxide or
               by using an estimation method that is determined  to be less than 25%
               different from actual measurements?
               [§§63.1427(a)(2)(i)and (ii)|

         81.    Did you define the end of epoxide feed? |§63.1427(b)]                   D Yes D No

         82.    Did you define the onset of the ECO? [§63.1427(c)J                     D Yes D No

         83.    Did you determine emissions at the end of the ECO? |§63.1427(d)]         D Yes a No

         84.    Did you determine the percent epoxide emission reduction? [§63.1427(e)J    Q Yes D No

         85.    Did you determine the epoxide concentrations? |§63.1427(f)]              D Yes D No

         86.    Did you determine total pressure of the system? (§63.1427(g)|             D Yes D No

         87.    Did you determine whether pressure decay curves for different products    d Yes D No
        	are similar? |§63.1427(h)]	


        For each process vent using extended cookout, you are meeting the monitoring requirements if you
        answer yes to each question 88-90, as appropriate. List the identification number of each process
        vent in the comments column.
Chapter 19 - Inspection Checklist                          139

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        Requirements for Process Vents Using Extended Cookout
Monitoring Requirements for Any Process Vent Using Extended Cookout
#
88.




89.



90.
Question
Did you monitor one of the following? [§63.1427(i)(l)j
• Time from end of epoxide feed to end of ECO
• The epoxide partial pressure in the closed reactor
• Epoxide concentration in the reactor liquid at the end of the ECO
when the liquid is still in the reactor or after transfer to another
vessel
• Another parameter approved by the EPA
Did you establish a level to be maintained during periods of operation for
one of the following parameters for each product class? |§63.1427(i)(2)]
• Time from end of epoxide feed to the end of ECO
• Reactor epoxide partial pressure at the end of ECO
• Epoxide concentration in the reactor liquid at the end of ECO, when
the liquid is still in the reactor or afer transfer to another vessel
• Another parameter approved by the EPA
Did you record the value of the monitored value at the end of ECO for
• each batch cycle where ECO is used to reduce epoxide emissions?
|§63. 1427(i)(3)]
Answer Comments
D Yes
DYes
0 Yes

DYes


Q Yes
DYes
DYes

DYes
DYes
DNo
a NO
DNo

DNo


DNo
DNo
DNo

DNo
DNo
       For each process vent using extended cookout, you are meeting the recordkeeping requirements if
       you answer yes to each portion of questions 91-107 for each process vent, as appropriate.  List the
       identification number for each process vent  in the comments column.


        Records for Process Vents Using Extended Cookout

        #      Question                                                       Answer       Comments

        91.     For each product in each product class, do you have records of pressure    DYes DNo
               decay curve? |§63.1427(j)(l)(i)(A)]

        92.     For each product in each product class, do you have records of minimum   DYes DNo
               reaction temperature? [§63.1427(j)(l)(i)(B)]

        93.     For each product in each product class, do you have record of the        n Yes n No
               number of reaction hydrogens in the raw material? [§63.1427(j)(l)(i)(Q]

        94.     For each product in each product class, do you have records of the        DYes DNo
               minimum catalyst concentration? |§63.1427(j)(l)(i)(D)]

        95.     For each product in each product class, do you have records of the ratio    D Yes D No
               of EO/PO at the end of the epoxide feed? |§63.1427(j)(l)(i)(E)]
Chapter 19 - Inspection Checklist                          140

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          Requirements for Process Vents Using Extended Cookout


          Records for Process Vents Using Extended Cookout

          #      Question                                                             Answer        Comments

          96.    For each product in each product class, do you have records of reaction     d Yes O No
                 conditions, including the size of the reactor or batch?
                 [§63J4270)(l)(i)(F)],

          97.    For each product in each product class, do you have a list of all the         O Yes d No
                 products in the product class for each product? |§63.1427(j)0)(ii)]

          98.    For each product in each product class, do you have records of the         D Yes O No
                 uncontrolled epoxide emissions at the onset of the ECO with the
                 background data, measurements, and assumptions used in calculation in
                 initial determination of percent epoxide emission reduction?
                 [§63.1427(j)(l)(v)]

          99.    For each product in each product class, do you have records of the         D Yes O No
                 epoxide emissions at the end of the ECO with background data,
                 measurements, and assumptions  used in calculation in initial
                 determination of percent epoxide emission reduction? [§63.1427(j)(l)(vi)|

          100.    For each product in each product class, do you have records of the         D Yes D No
                 percent epoxide reduction for the batch cycle with background data,
                 measurements, and assumptions  used in calculation in initial
                 determination of percent epoxide emission reduction?
          101.    For each product in each product class, do you have records of the        D Yes  n No
                 established parameter level to maintain in initial determination of
                 percent epoxide emission reduction? |§63.1427(j)(l)(viii)]

          102.    For each product in each product class, do you have records of the time    D Yes  D No
                 and duration of all emission episodes that occur before the end of the
                 ECO in initial determination of percent epoxide emission reduction?
                 [§63.I427(j)(l)(ix)]

          103.    For each product in each product class, do you have records of each       D Yes  D No
                 product produced and its product class for each batch cycle?
                 |§63.1427(|)W)(i)]

          104.    For each product in each product class, do you have records of the values  D Yes  n No
                 of all parameters measured in determining excursions?
          105.    For each product in each product class when you are using combustion,    D Yes  O No
                 recovery, or recapture devices in conjunction with ECO, do you have
                 records for those devices in addition to those for the ECO?
          106.    For each product in each product class, do you have records of the time    O Yes  D No
                 and duration of all epoxide emission episodes that occurred before the
                 end of the ECO? (§63.1427(j)(2)(v)]
Chapter 19 - Inspection Checklist                             141

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        Requirements for Process Vents Using Extended Cookout


        Records for Process Vents Using Extended Cookout

        #     Question                                                   Answer       Comments

        107.   If you are using ECO as a control option for a new polyether polyol not    D Yes D No
              previously assigned to a product class, have you updated your records to
              include information for the new product? f§63.1427(l)(l)(i);
              63.1427(m)(2)]
Chapter 19 - Inspection Checklist                         142

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            Requirements for Process Vents Using  Extended Cookout
        If any of the following occur, you must keep additional records for each product in each product
        class, and you must answer yes to questions 108-112 to be in compliance with this portion of the
        rule.

        -  Epoxide is emitted before the end of the ECO

        -  ECO is not the only control technique used to reduce epoxide emissions

        -  You determine percent epoxide emission reduction for the ECO using reactor epoxide partial
           pressure.


         Additional Records for ECO	

         108.   Do you have records of the concentration of epoxide at the end of        HI Yes D No
               epoxide feed in initial determination of percent epoxide emission
               reduction? (§63.1427(j)(l)(iii)]

         109.   Do you have records of the concentration of epoxide at the onset of the     d Yes O No
               ECO in initial determination of percent epoxide emission reduction?
               |§63.1427(j)(l)
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             Requirements for Process Vents  Using Extended Cookout
        For each process vent using ECO, you are meeting the notification and reporting requirements if
        you answer yes to questions 113-117.

         Notifications and Reports
         #      Question                                                          Answer        Comments
         113.    Did you submit a Precompliance Report with the following information?
                |§63.1427(k)(l)]
                •    The standard operating procedure for taking reactor liquid samples   D Yes  D No
                    and the method that will be used to determining the epoxide
                    concentration in the liquid                                     D Yes  D No
                •    Requests to monitor alternate parameters, if applicable
         114.    Did you submit a Notification of Compliance Status with the following
                information?  |§63.1427(k)(2))
                •    All the operating conditions for each product class                 O Yes  d No
                •    A list of all products produced in a product class                   „ ,,    „ .,
                •    The percent epoxide emission reduction                          d Yes  O No
                                                                               D Yes  d No
                •    The parameter for each product class
                •    A list of times and durations of all epoxide emissions that occur
                                                                               D Yes  D No
                    before the end of the ECO during the initial demonstration of batch
                    cycle efficiency
                •    Records to demonstrate compliance and establishment of parameter
                    monitoring levels for combustion, recovery or recapture devices used
                    in addition to ECO to reduce emissions
         115.    Did you submit a Periodic Report with the following information?
                §63.1427(k)(3)
                •    Reports of each batch cycle for which an ECO excursion occurred     D Yes  D No
                •    The time and duration of each batch cycle where epoxide emissions   ^ ,,    a ^
                    occur before the end of the ECO  exceeds the time and duration  of
                    the emission episodes that occurred during the initial epoxide
                    emission  percentage reduction determination
         116.    If you are using ECO as a control option and you have a change in the     O Yes  D No
                polyether polyol products or operating conditions, have you  submitted a
                report updating the product list and containing the information required
                for a Notification of Compliance Status within 180 days?
                |§63.1427(m)(3)(i)(B);63.1427(m)(3)(ii)(B)l
Chapter 19 - Inspection Checklist                            144

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             Requirements for Process Vents Using Extended Cookout
         Notifications and Reports
         #      Question                                                          Answer        Comments

         117.   If you are using ECO as a control optjon for anew polyether polyol not    D Yes  O No
                previously assigned to a product class, have you submitted a report
                updating the product list and containing the information required for a
                Notification of Compliance Status within 180 days? |§63.1427(l)(l)(i);
        	§63.1427(l)(2)(iii)j	
        If you answered yes to questions 6,11, or 78, you must complete questions 118-122.  To be in
        compliance, you must answer yes to each question that applies to you.


         Requirements for Process Vents Complying Using an Emission Factor

         #      Question                                                       Answer         Comments

         118.   Did you develop an epoxides emission factor plan and submit it with      O Yes  D No
                either the Precompliance Report or the operating permit application?
                |§63.1431(b); §63.1431(c)(l); §63.1431(d)(l); §63.1341(e)(l)|

         119.   If you are not using extended cookout and you are using a combustion,    D Yes  d No
                recovery, or recapture device, did you determine annual epoxide
                emissions using Equation IS and submit the annual epoxide emissions
                with the Notification of  Compliance Status? |§63.1431(c)(2)l
        	......I[[[	...•...•......*......*>.....,...................1...'....................u......
         120.   If you are using extended cookout and you are not using a combustion,    D Yes  D No
                recovery, or recapture device, did you determine annual epoxide
                emissions according to §63.1427(d) and submit the annual epoxide
                emissions with the Notification of Compliance Status? [§63.1431 (d)(2)]

         121.   If you are using extended cookout and you are using a combustion,       O Yes  D No
                recovery, or recapture device, did you determine annual epoxide
                emissions and submit the annual epoxide emissions with the Notification
                of Compliance Status? |§63.1431(e)(2)]

         122.   If you are not using extended cookout and  you are not using a            D Yes  n No
                combustion, recovery, or recapture device, did you  determine annual
                epoxide emissions and submit the annual epoxide emissions with the

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       Appendix A - Final Rule
     40 CFR part 63, subpart PPP
You can find the final rule at the following address:

  http://www.epa.gov/ttn/uatw/polvol/polvolpg.html
                  A-l

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Tuesday
June 1, 1999
Part II



Environmental

Protection  Agency

40 CFR Part 63
National Emission Standards for
Hazardous Air Pollutants for Polyether
Polyols Production; Final Rule

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29420
Federal  Register/Vol. 64, No.  104/Tuesday, June 1,  1999/Rules and Regulations
ENVIRONMENTAL PROTECTION
AGENCY

40 CFR Part 63
[FRL-6344-7]
RIN 2060-AE-86

National Emission Standards for
Hazardous Air Pollutants for Polyether
Polyols Production

AGENCY: Environmental Protection
Agency (EPA).
ACTION: Final rule.

SUMMARY: This rule promulgates
national emission standards for
hazardous air pollutants (NESHAP) for
new and existing plant sites that
manufacture polyether polyols. The
hazardous air pollutants (HAP)  emitted
by the facilities covered by this rule
include ethylene oxide (EO), propylene
oxide (PO), hexane, toluene, and
incidental emissions of several other
HAP. Some of these pollutants are
considered to be probable human
carcinogens when inhaled, and all can
cause toxic effects following exposure.
The rule is estimated to reduce
emissions of these pollutants by 1,810
Megagrams per year (Mg/yr) (2,000 tons
per year (tons/yr)). Because all of the
pollutants are also volatile organic
compounds (VOC), which are
precursors to ambient ozone, the
promulgated rule will also aid in the
reduction of tropospheric ozone.
DATES: This regulation is effective on
June 1, 1999.
ADDRESSES: Docket. Docket No. A-96-
38, containing information considered
by the EPA in development of the
promulgated standards, is available for
public inspection from 8:00 a.m. to 5:30
p.m., Monday through Friday, at the
following address in room M-1500,
                        Waterside Mall (ground floor): U.S.
                        Environmental Protection Agency, 401
                        M Street SW, Washington, DC 20460,
                        telephone number (202) 260-7548. A
                        reasonable fee may be charged for
                        copying docket materials.
                        FOR FURTHER INFORMATION CONTACT: For
                        information concerning this final rule or
                        the analyses performed in developing
                        this rule, contact Mr. David
                        Svendsgaard, Organic Chemicals Group,
                        Emission Standards Division (MD-13),
                        Office of Air Quality Planning and
                        Standards, U.S. EPA, Research Triangle
                        Park, North Carolina 27711, telephone
                        number (919) 541-2380, facsimile
                        number (919) 541-3470, electronic mail
                        address svendsgaard.dave@epa.gov. For
                        information concerning applicability
                        and rule determinations, contact your
                        State or local representative or the
                        appropriate EPA Regional Office
                        representatives. For a listing of EPA
                        Regional contacts, see the following.
                        SUPPLEMENTARY INFORMATION:

                        Electronic Access
                         These final standards and all other
                        information considered by the EPA in
                        the development of these final standards
                        are available in Docket Number A-96-
                        38 by request from the EPA's Air and
                        Radiation Docket and Information
                        Center (see ADDRESSES). Electronic
                        versions of documents from the Office
                        of Air and Radiation (OAR) are available
                        through the EPA's OAR Technology
                        Transfer Network Web site (TTNWeb).
                        The TTNWeb is a collection of related
                        Web sites containing information about
                        many areas of air pollution science,
                        technology, regulation, measurement,
                        and prevention.  The TTNWeb is directly
                        accessible from the Internet via the
                        World Wide Web location at the
                        following address: http://www.epa.gov/
                        ttn. Electronic versions of this preamble
and rule are located under the OAR
Policy and Guidance Information Web
site, at http://www.epa.gov/ttn/oarpg/,
under the Federal Register notices
section. If more information on the
TTNWeb is needed, contact  the Systems
Operator at (919) 541-5384.
EPA Regional Office Contacts

Director, Office of Environmental
  Stewardship, Attn: Air Compliance
  Clerk, U.S. EPA Region 1,1 Congress
  Street,  Suite 1100 (SEA), Boston, MA
  02114-2023(617)918-1740
Umesh Dholakia, U.S. EPA Region II,
  290 Broadway Street, New York. NY
  10007-1866. (212) 637-4023
Dianne Walker, U.S. EPA Region in,
  1650 Arch Street, Philadelphia, PA
  19103, (215) 814-3297
Lee Page, U.S. EPA, Region IV, 61
  Forsyth Street, SW, Atlanta, GA
  30303-3104, (404) 562-9131
Bruce Varner, U.S. EPA. Region V, 77
  West Jackson Boulevard, Chicago, IL
  60604-3507, (312) 886-6793
Jim Yang, U.S. EPA, Region  VI, 1445
  Ross Avenue, Suite 1200 (6EN-AT),
  Dallas, TX 75202, (214) 665-7578
Gary Schlicht, U.S. EPA, Region VII. 726
  Minnesota Avenue, Kansas City, KS
  66101, (913) 551-7097
Tami Thomas-Burton, U.S. EPA, Region
  VIE, 999  18th Street, Suite 500,
  Denver, CO 80202, (303) 312-6581
Ken Bigos, U.S. EPA, Region IX, 75
  Hawthorne Street, San Francisco, CA
  94105, (415) 744-1200
Dan Meyer, U.S. EPA, Region X, 1200
  Sixth Street, Seattle, WA 98101, (206)
  553-4150
Regulated Entities
  Entities regulated by this action are
polyether polyols production facilities.
Regulated categories and entities
include:
Category
Industry 	

Standard industrial classification
(SIC) codes
Typically, 2843 and 2869 	

North American industrial classi-
fication system (NAICS) codes
Typically 325199 and 325613

Examples of potentially regulated
entities
Producers of polyether polyols
and polyether mono-ols.
This table is not intended to be
exhaustive, but rather provides a guide
for readers regarding entities likely to be
regulated by this action. This table lists
the types of entities that the EPA is now
aware could potentially be regulated by
this action. Other types of entities not
listed in the table could also be
regulated. To determine whether your
facility, company, business
organization, etc., is subject to this rule,
you should carefully examine the
applicability criteria in 40 CFR 63.1420.
                        If you have questions regarding the
                        applicability of this action to a
                        particular entity, consult the person
                        listed in the preceding FOR FURTHER
                        INFORMATION CONTACT section.

                        Judicial Review

                         National emission standards for
                        polyether polyols production were
                        proposed in the Federal Register on
                        September 4, 1997 (62 FR 46804).
                        Today's Federal Register action
                        announces the EPA's final decision on
the rule. Under section 307(b)(l) of the
Clean Air Act (CAA), judicial review of
the final rule is available by filing a
petition for review in the U.S. Court of
Appeals for the District of Columbia
Circuit within 60 days of today's
publication of this final rule. Under
section 307 (b) (2) of CAA, the
requirements that are the subject of
today's final rule may not be challenged
later in civil or criminal proceedings
brought by the EPA to enforce these
requirements.

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               Federal Register/Vol.  64,  No.  104/Tuesday, June 1, 1999/Rules and Regulations
                                                                      29421
  The following outline is provided to
aid in reading the preamble to the final
rule.
I. List of Source Categories
II. Summary of Considerations Made in
   Developing This Standard
  A. Background and Purpose of the
   Regulation
  B. Source of Authority
  C. Stakeholder and Public Participation
III. Summary of Promulgated Standards
  A. Affected Sources
  B. Storage Vessels
  C. Process Vents
  D. Wastewater Operations
  £. Equipment Leaks
  F. Heat Exchangers
  G. General Testing Requirements
  H. Monitoring Levels and Excursions
  I. General Provisions
  J. General Record keeping and Reporting
   Requirements
IV. Control Technology Basis of the Standard
V. Summary of Impacts
  A. Air Impacts
  B. Other Environmental Impacts
  C. Energy Impacts
  D. Cost Impacts
  E. Economic Impacts
VI. Significant Comments and Changes to the
   Proposed Standards
  A. Primary Product Determination
  B. Definition of "Polyether Polyol"
  C. Definition of "Process Vent"
  D. Outlet Concentration Limit as an
   Alternative Epoxide. Process Vent
   Emission Limit for New Sources
  E. Flares as a Reference Control
   Technology
  F. Group Determination on an Individual
   Process Vent Basis for Nonepoxide
   Organic HAP Emissions from Making or
   Modifying the Product
  G. Possibility of Dual Controls for
   Nonepoxide Organic HAP Emissions
   from Making or Modifying the Product
  H. Worst-Case Testing Requirements
  I. Engineering Calculations as an
   Alternative to Performance Testing
  J. Allowable Test Methods for Control
   Efficiency Determinations
  K. Site-Specific Onset of Extended Cookout
  L. Parameter Monitoring Excursion
   Definitions
  M. Monitoring During Start-ups,
   Shutdowns, and Malfunctions
  N. Process Vent Control Requirement for
   Epoxide Emissions from New Sources
VII. Administrative Requirements
  A. Docket
  B. Executive Order 12866
  C. Executive Order 13045
  D. Paperwork Reduction Act
  E. Regulatory Flexibility Act
  F. Submission to Congress and the
   Comptroller General
  G. Unfunded Mandates
  H. Executive Order 12875
  I. Executive Order 13084
  ]. National Technology Transfer and
   Advancement Act

I. List of Source Categories
  The EPA identified a total of
approximately 84 plant sites producing
polyether polyols. Of the 84 facilities,
78 were considered in the analysis
supporting the proposed rule and are
believed to be major sources according
to the 1990 CAA Amendments' criteria
of having the potential to emit 10 tons/
yr (9.1 Mg/yr) of any one HAP or 25
tons/yr (22.7 Mg/yr) of combined HAP.
Today's final rule applies to all major
sources that produce polyether polyols.
Area sources are not subject to today's
final rule.
  In developing the background
information to support the proposed
rule, the EPA decided it was appropriate
to subcategorize the source category for
purposes of analyzing the maximum
achievable control technology (MACT)
floors and regulatory alternatives. The
subcategories were: polyether polyols
made from the polymerization of
epoxides, and polyether polyols made
from the polymerization of
tetrahydrofuran (THF). An "epoxide" is
a chemical compound consisting of a
three-membered cyclic ether. Ethylene
oxide and propylene oxide are the only
epoxides that are listed as HAP under
section 112(b) of the CAA.
Subcategorization was necessary due to
the distinctively different nature of the
epoxide and THF processes and their
effect on the applicability of controls.
One noteworthy distinction between the
two subcategories is that the first group,
polyols made with epoxides, uses a
HAP as the monomer, whereas the
second group, polyols made with THF,
does not use a HAP monomer.
Additionally, the first group (epoxide
reactants) performs the reaction
primarily on a batch basis, while the
second group (THF) performs the
reaction on a continuous basis.
  The Agency obtained data from
facilities that make polyether products
by polymerizing a compound having
multiple reactive hydrogen atoms,
resulting in the formation of a "polyol,"
and from facilities that make polyethers
by polymerizing a compound with a
single reactive hydrogen, which forms a
"mono-ol." The Agency then
investigated the distinctions between
the production units and the emissions
controls for products from these two
groups. The Agency found no
fundamental difference between the
processes, the chemistry, the emissions,
or the types of control equipment.
Further, many producers use the same
process equipment to produce polyols
and mono-ols, yet they genetically refer
to both types of products as "polyols."
Therefore, for the purposes of this
regulation, the Agency uses the term
"polyether polyols" to represent both
polyether polyols and polyether mono-
ols.
II. Summary of Considerations Made in
Developing This Standard

A. Background and Purpose of the
Regulation

  The CAA was created in part "to
protect and enhance the quality of the
Nation's air resources so as to promote
the public health and welfare and the
productive capacity of its population."
(section 101(b)(l)). Section 112(b) of the
CAA, as revised in 61  FR 30816 (June
18, 1996), lists 188 HAP believed to
cause adverse health or environmental
effects. Section 112(d) requires that
emission standards be promulgated for
all categories and subcategories of
"major" sources of these HAP, and for
many smaller "area" sources listed for
regulation, pursuant to section 112(c).
Major sources are defined as those that
emit or have the potential to emit at
least 10 tons/yr (9.1 Mg/yr) of any one
HAP or 25 tons/yr  (22.7  Mg/yr) of any
combination of HAP.
  On July 16, 1992 (57 FR 31576), the
EPA published a list of categories of
sources slated for regulation. This list
included the polyether polyol
production source  category regulated by
the standards being promulgated today.
The statute requires emissions standards
for the listed source categories to be
promulgated between November 1992
and November 2000. On December 3,
1993, the EPA published a schedule for
promulgating these standards (58 FR
63941). Standards for the polyether
polyols production source category
covered by this rule were proposed on
September 4, 1997 (62 FR 46804).
  The final standards give existing
affected sources 3 years  from the date of
promulgation to  comply with the
emission limitations for storage vessels,
process vents, wastewater, and heat
exchangers. Subject to certain limited
exceptions, this is the maximum
amount of time allowed under the CAA.
The final standards give existing
affected sources 6 months to comply
with the equipment leak provisions.
New affected sources are required to
comply with the standards upon initial
startup. The EPA believes these
standards to be achievable for all
affected sources within the time
provided.
  Monitoring, recordkeeping, and
reporting requirements are also
included in this final rule. All of these
components are necessary to ensure that
sources will comply with the standards
both initially and over time. However,
the EPA has made every effort to
simplify the requirements in the rule.

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 29422
Federal  Register/Vol. 64, No.  104/Tuesday, June 1,  1999/Rules and Regulations
 B. Source of Authority
  The amended CAA requires the EPA
 to promulgate national emission
 standards for sources of HAP. Section
 112(d) provides that these standards
 must reflect:
 * *  * the maximum degree of reduction in
 emissions of the HAP * *  *  that the
 Administrator, taking into consideration the
 cost of achieving such emission reduction,
 and any nonair quality health and
 environmental impacts and energy
 requirements, determines is achievable for
 new or existing sources in the category or
 subcategory to  which such emission standard
 applies.* * *(42U.S.C. §7412(d)(2)).
 This level of control is referred to as the
 MACT. The CAA goes on to establish
 the least stringent level of control for
 MACT; this level is termed the "MACT
 floor."
  According to the CAA, new source
 standards for a source category or
 subcategory "shall not be less stringent
 than the emission control that is
 achieved in practice by the best
 controlled similar source, as determined
 by the Administrator" (section
 112(d)(3)). Existing source standards
 shall be no less stringent than the
 average emission limitation achieved by
 the best performing 12 percent of the
 existing sources for source categories
 and subcategories with  30 or more
 sources, or the average emission
 limitation achieved by the best
 performing 5  sources for sources or
 subcategories with fewer than 30
 sources (section 112(d)(3)). These two
 minimum levels of control define the
 MACT floor for new and existing
 sources. When the EPA considers
 control levels more stringent than the
 MACT floor described above, the
 selection of MACT must take into
 consideration the cost of achieving the
 emission reduction, any non-air quality,
 health, and environmental impacts, and
 energy requirements.

 C. Stakeholder and Public Participation
  Numerous representatives of the
 polyether polyol production industry
 were consulted during the development
 of this standard. Industry
 representatives have included both
 trade associations and polyether polyol
 producers. The EPA also received input
 from representatives from State
 environmental agencies. Representatives
 from other EPA offices and programs
participated in the regulatory
 development process as members of the
work group. The work group was
involved in the regulatory development
process and was given opportunities to
review and comment on the standards
before proposal and promulgation.
Therefore, the EPA believes that the
                        impact on other EPA offices and
                        programs has been adequately
                        considered during the development of
                        these standards. Finally, industry
                        representatives, regulatory authorities,
                        environmental groups, and the public,
                        as a whole, had the opportunity to
                        comment on the proposed standards
                        and to provide additional information
                        during the public comment period that
                        followed proposal.
                         The Polyether Polyols NESHAP was
                        proposed in the Federal Register on
                        September 4,1997 (62 FR 46804). The
                        preamble and Basis and Purpose
                        Document for the proposed standards
                        for polyether polyols sources (published
                        on September 4, 1997) described the
                        rationale for the proposed standards.
                        Public comments on the Polyether
                        Polyols NESHAP were solicited at the
                        time of its proposal.
                         In addition, amendments to the
                        Polymers and Resins I NESHAP (which
                        some of the requirements in this final
                        rule cross-reference that existing rule)
                        were proposed on March 9, 1999 (63 FR
                        11560). Public comments were solicited
                        by the EPA regarding how those
                        proposed amendments, and die
                        incorporation of concepts in the
                        Polymers and Resins proposed rule into
                        subpart PPP, would affect sources
                        subject to the Polyether Polyols final
                        rule.
                         To provide interested individuals the
                        opportunity for oral presentation of
                        data, views, or arguments concerning
                        the proposed standards, a public
                        hearing was offered at proposal of these
                        requirements. However, the public did
                        not request a hearing and, therefore, one
                        was not held. The public comment
                        period for the proposed rule was from
                        September 4, 1997 to December 3, 1997.
                        A total of 11 comment letters were
                        received during the public comment
                        period, and 4 comment letters were
                        received after the end of the public
                        comment  period. Commenters included
                        Industry representatives and trade
                        organizations. The comments were
                        carefully considered, and changes were
                        made in the promulgated standards
                        when determined by the EPA to be
                        appropriate. A detailed discussion of
                        these comments and responses can be
                        found in the Basis and Purpose
                        Document for Final Standards, which is
                        referenced in Section V of this preamble
                        and serves as the basis for the revisions
                        that have been made to these standards
                        between proposal and promulgation.
                        Section V of this preamble discusses
                        some of the major changes made to the
                        proposed standards.
III. Summary of Promulgated
Standards

  This section provides a summary of
the final standards contained in subpart
PPP. The full regulatory text is printed
in today's final rule and is also available
in Docket No. A-96-38, directly from
the EPA, or from the Technology
Transfer Network (TTN) on the EPA's
electronic bulletin boards. More
information on how to obtain a copy of
the proposed regulation is provided at
the beginning of the SUPPLEMENTARY
INFORMATION section of this document.

A. Affected Sources

  For this final rule, an affected source
is defined as each group of one or more
polyether polyols manufacturing
process units (PMPUs) that is located at
a plant site that is a major source.
Polyether polyols are defined as the
products formed by the reaction of EO,
PO, or other cyclic ethers with
compounds having one or more reactive
hydrogens (i.e., a hydrogen atom
bonded to nitrogen, sulfur, oxygen,
phosphorous, etc.) to form polyethers
(i.e., compounds with two or more ether
bonds). The definition of "polyether
polyol" excludes hydroxy ethyl
cellulose and materials regulated under
the Hazardous Organics NESHAP
(HON), such as glycols and glycol
ethers.
  An existing affected source is any
affected source that is not a new affected
source. A new affected source can be
created by one of four ways. If a plant
site with an existing polyols-affected
source adds one or more new PMPUs,
the added group of one or more new
PMPUs is a new affected source if the
added group of one or more new PMPUs
has the potential to emit more than 10
tons/yr (9.1 Mg/yr) of any one HAP or
25 tons/yr (22.7 Mg/yr) of all HAP. In
this situation, the plant site would have
an existing affected source and a new
affected source. Each subsequent set of
one or more added PMPUs with
potential HAP  emissions above the 107
25 levels cited above would be a
separate new affected source.
  New affected sources are also created
when one or more PMPUs are
constructed at  a major source plant site
where polyether polyols were not
previously produced (with no
consideration of the potential HAP
emissions from the PMPU). Another
instance where a new affected source is
created is if one or more PMPUs are
constructed at a new plant site (i.e.,
green field site) that will be a major
source. The final manner in which a
new affected source is created  is when

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              Federal Register/Vol. 64, No.  104/Tuesday, June 1,  1999/Rules and Regulations
                                                                   29423
an existing affected source undergoes
reconstruction.
  Affected sources covered by the
promulgated rule emit a variety of HAP
from several different types of emission
points. The most significant emissions
are of the following HAP: EO, PO,
hexane, and toluene. These final
standards regulate emissions of these
compounds, as well as all other organic
HAP that are emitted during the
production of polyether polyols.
  Emissions from the following types of
emission points (i.e., emission source
types) are being covered by the
promulgated rule: storage vessels,
process vents, heat exchange systems,
equipment leaks, and wastewater
operations. Tables 1 and 2 summarize
the level of control for existing and new
affected sources, respectively, for each
of these types of emission points. Where
the applicability criteria and required
level of control are the same as the HON
(40 CFR Part 63, subparts F, G, and H),
this is indicated in Tables 1 and 2 as
"HON." "Epoxides," in Tables 1 and 2,
refer to EO and PO. "Nonepoxide
organic HAP" refers to organic HAP
other than EO and PO that are used in
the polyether polyols production
process. The following sections describe
these standards in more detail, by
emission source type.
                TABLE 1.—SUMMARY OF LEVEL OF THE STANDARDS FOR EXISTING AFFECTED SOURCES


Polyether Polyols
made with
tetrahydro-furan.

Polyether Polyols
made with epoxides.

sources
HON 	


HON 	



HON 	

Epoxide emissions
98 percent aggre-
gate emission
reduction; or
flare emissions
from all vents;
or maintain out-
let cone. < 20
ppmv; or main-
tain emiss. fac-
tor < 1.69 x
10-2 kg epox./
Mg product.
Storage
Process vents


Nonepoxide organic HAP
emissions from making or
modifying product
Group 1 combination of
process vents from batch
unit operations: 90 per-
cent aggregate emission
reduction; or flare emis-
sions from all vents..
Group 1 process vents from
continuous unit oper-
ations: 98 percent emis-
sion reduction; or flare
emissions.




Nonepoxide or-
ganic HAP in cat-
alyst extraction
90 percent aggre-
gate emission
reduction; or
flare emissions
from all vents.

Waste-
water
HON 	


HON 	

Heat
exch.
syst.
HON 	


HON 	


leaks
HON.


HON.

                  TABLE 2.—SUMMARY OF LEVEL OF THE STANDARDS FOR NEW AFFECTED SOURCES




Polyether Polyols
made with
tetrahydro-furan.



Polyether Polyols
made with epoxides.












Storage
Existing
source
HON.



Existing
source
HON.












HON 	



Epoxide emissions

99.9 percent ag-
gregate emis-
sion reduction;
or maintain out-
let cone. £ 20
ppmv; or main-
tain emiss. fac-
tor < 4.43 x
10~3 kg epox./
Mg product.

Emission sources


Process vents



Nonepoxide organic HAP
emissions from making or
modifying product
Group 1 combination of
process vents from batch
unit operations: 90 per-
cent aggregate emission
reduction; or flare emis-
sions from all vents-
Group 1 process vents from
continuous unit oper-
ations: 98 percent emis-
sion reduction; or flare
emissions..







Nonepoxide or-
ganic HAP in cat-
alyst extraction
90 percent aggre-
gate emission
reduction; or
flare emissions
from all vents.









Waste-
water
Exist,
source
HON.



Exist.
source
HON.









neat

syst.
HON 	





HON 	













leaks
HON.





HON.










 B. Storage Vessels

  For polyether polyols made with
 either epoxides or THF, the storage
affected sources are nearly identical to
the HON storage vessel requirements in
subpart G for existing sources. The final
rule specifies procedures for
assigned to a PMPU. Group 1 storage
vessels require control, while Group 2
storage vessels do not If a storage vessel
has a capacity below 75 cubic meters, it
 ciuici cpu,uu«, ui inr, LUC 3iL-i«.gC       mle specifies procedures for             has a capacity below 75 cubic meters ;
 vessel requirements at new and existing  determining whether a storage vessel is   is Group 2. For vessels with capacities

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Federal  Register/Vol. 64. No. 104/Tuesday,  June 1, 1999/Rules and  Regulations
 between 75 and 151 cubic meters, they
 are Group 1 if the vapor pressure of the
 liquid being stored is 13.1 kilopascals or
 greater. Storage vessels with capacities
 greater than 151 cubic meters are Group
 1 if the vapor pressure of the liquid
 being stored is 5.2 kilopascals or greater.
   The storage vessel provisions require
 that me of the following control
 systems be applied to Group 1 storage
 vessels:  (1) An internal floating roof
' with proper seals and fittings; (2) an
 external floating roof with proper seals
 and fittings; (3) an external floating roof
 converted to an internal floating roof
 with proper seals and fittings; or (4) a
 closed vent system with a 95 percent
 efficient combustion, recovery,  or
 recapture device. The storage vessel
 provisions give details on the types of
 seals and fittings required. Monitoring
 and compliance provisions include
 periodic visual inspections of vessels,
 roof seals, and fittings, as well as
 internal inspections. If a closed vent
 system and combustion, recovery, or
 recapture device is used, the owner or
 operator must establish appropriate
 monitoring procedures. Reports and
 records of inspections, repairs, and
 other information necessary to
 determine compliance are also required
 by the storage vessel provisions.
 C. Process Vents
   There are separate process vent
 provisions for affected sources that
 produce polyether polyols using
 epoxide reactants and affected sources
 that produce polyether polyols using
 THF. The control requirements  for each
 type of affected source are discussed
 below, followed by a discussion of the
 monitoring, reporting, and
 recordkeeping provisions.
 1. Polyether Polyols That Use Epoxides
 as a Reactant
   For the polyether polyols that use
 epoxides as a reactant, the process vent
 provisions are separated into three
 groups that are based on the function of
 the organic HAP in the production
 process. These groups are: (1) Epoxide
 (i.e., EO and PO) emissions resulting
 from the use of these chemicals as
 reactants; (2) emissions of organic HAP
 other than EO or PO  (i.e., "nonepoxide
 organic HAP") resulting from their use
 in making or modifying the polyether
 polyol product; and (3) emissions of
 nonepoxide organic HAP resulting from
 their use in catalyst extraction.
   a. Requirements for epoxide
 emissions. The existing source
 requirement for epoxide emissions from
 process vents is to reduce epoxide
 emissions by 98 weight-percent. For
 new sources, this requirement is 99.9
                        weight-percent. This is an aggregated
                        percent reduction applied to all process
                        vents that emit epoxides in the PMPU.
                        Therefore, the owner or operator has the
                        flexibility to select which vents to
                        control, provided that the overall
                        epoxide emission reduction from the
                        PMPU is equal to, or greater than, the
                        required efficiency.
                          In addition to using a combustion,
                        recovery, or recapture device to achieve
                        the 98 percent reduction (or 99.9
                        percent for new sources), the final rule
                        allows the use of "extended cookout"
                        (ECO) as a means of reducing emissions
                        by the required percentage. This
                        pollution prevention technique reduces
                        emissions by extending the time of
                        reaction, thus leaving less unreacted
                        epoxides to be emitted downstream.
                          Instead of complying with the 98 (or
                        99.9) weight-percent reduction
                        limitation, an owner or operator may
                        comply by demonstrating that each
                        outlet stream has a concentration of 20
                        parts per million  by volume (ppmv)
                        epoxide or total organic compound
                        (TOC). This option is available for
                        existing and new affected sources, but
                        only if a combustion, recovery, or
                        recapture device is used.
                          As another alternative to the 98
                        percent emission reduction, owners or
                        operators of existing affected sources
                        may maintain an  epoxide emission
                        factor from the PMPU of no more than
                        1.69 x 10 ~ 2 kilograms of epoxide
                        emissions per megagram of product
                        made (kg/Mg), or 1.69 x 10 ~2 pounds of
                        epoxide emissions per 1,000 pounds of
                        product made (lb/1000 Ib). The
                        corresponding emission factor for new
                        affected sources is 4.43 x 10 ~3 kg/Mg
                        (4.43 x 10 -3 lb/1000 Ib). Compliance
                        with this alternative limitation is
                        achieved by developing and following
                        an epoxide annual emissions plan,
                        which must include provisions for the
                        monitoring of the process and any
                        combustion, recovery, or recapture
                        device parameters to demonstrate
                        continuous compliance with the
                        emission limitation.
                          Finally, for affected existing sources,
                        if a flare is used to reduce epoxide HAP
                        emissions from all process vents in the
                        PMPU, then a demonstration of 98
                        percent epoxide emission reduction is
                        not required. If an owner or operator of
                        an new affected source wants to use
                        only a flare, a demonstration that the
                        flare will achieve 99.9 percent epoxide
                        emission reduction Is required.
                          An owner or operator can also choose
                        to use a combination of the percent
                        reduction, 20 ppmv, and flare
                        compliance options discussed above in
                        a single PMPU.
  b. Requirements for emissions
resulting from the use of nonepoxide
organic HAP to make or modify the
product. For nonepoxide organic HAP
emissions that result from the use of
nonepoxide organic HAP to make or
modify the product, the final rule uses
a "group" approach, where those vents
that are classified as Group 1 are
required to be controlled. This provision
only applies if a nonepoxide organic
HAP is used to make or modify the
product.
  In many instances, the process vent
stream containing these nonepoxide
organic HAP will also contain epoxides.
The combustion, recovery, or recapture
device used to comply with the epoxide
emission provisions discussed above
may also reduce nonepoxide emissions.
It is for this reason that the final rule
requires that the group determination
for nonepoxide organic HAP emissions
from making or modifying the product
be conducted after the emissions exit
the epoxide combustion, recovery, or
recapture  device (or after the ECO).
Therefore, any nonepoxide emission
reduction that is  coincidentally
achieved in the epoxide combustion,
recovery, or recapture device will
impact whether the process vent is
classified  as Group 1.
  The group determination approach for
process vents from batch unit operations
differs from that for  process vents from
continuous unit operations. Each
approach  is discussed below.
  For process vents  from batch unit
operations, the approach is to determine
if the collection of process vents in each
PMPU that is associated with the use of
nonepoxide organic HAP to make or
modify the product is Group 1 or Group
2. If the combination of batch process
vents is determined  to be Group 1, the
aggregate nonepoxide organic HAP
emissions are required to be reduced by
90 weight-percent As with the epoxide
percent emission reduction
requirement, this requirement is on an
aggregated basis.  Therefore, the owner
or operator has the flexibility to select
which vents to control, provided that
the overall nonepoxide emission
reduction from the PMPU Is equal to, or
greater than, 90 weight-percent. If a flare
is used to  reduce these nonepoxide
organic HAP emissions from all process
vents associated with the use of a
nonepoxide organic HAP to make or
modify the product, then a
demonstration of 90 weight-percent
emission reduction is not required.
These requirements  are the same for
new and existing affected sources.
  The group status for the combination
of batch vents in  a PMPU is determined
by calculating the annual emissions

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               Federal Register/Vol. 64,  No. 104/Tuesday, June  1,  1999/Rules and Regulations
                                                                    29425
from all of the applicable vents. If the
total nonepoxide organic HAP
emissions are less than 11,800 kilograms
per year (26,000 pounds per year), then
the collection of vents is classified as
Group 2, and no control is required. If
the emissions are greater than 11,800
kilograms per year (26,000 pounds per
year), they are used to calculate a "cut-
off" flow rate. This cutoff flow rate is
then compared to the actual combined
annual average flow rate for all the
vents. If the actual combined annual
average flow rate is less than the cutoff
flow rate, the group of vents is Group 1.
  For process vents from continuous
unit  operations, the approach is to
determine if each process vent in the
PMPU that is associated with the use of
nonepoxide organic HAP to make or
modify the product is Group 1. If a
continuous process vent is determined
to be Group 1, the nonepoxide organic
HAP emissions are required to be
reduced by using a flare or by 98
weight-percent. As with batch vents,
these requirements are the same for  new
and existing affected sources.
  A continuous process vent is Group 1
if it has a flow rate greater than or equal
to 0.005 standard cubic meters per
minute, a HAP concentration greater
than or equal to 50 ppmv, and a total
resource effectiveness (TRE) index value
less than or equal to 1.0. The final rule
directly refers to the HON TRE equation
in subpart G.
  c. Requirements for nonepoxide
organic HAP emissions from catalyst
extraction. This provision only applies
if a nonepoxide organic HAP is used in
the catalyst extraction process. The
promulgated process vent provisions
require the owner or operator of existing
affected sources using epoxides to
reduce the aggregate total nonepoxide
organic HAP emissions by 90 weight-
percent from process vents associated
with catalyst extraction at new or
existing affected sources. This is also an
aggregate emission reduction
requirement for the PMPU. If a flare is
used to reduce these nonepoxide
organic HAP emissions from all process
vents associated with catalyst
extraction, then a demonstration of 90
weight-percent emission reduction is
not required.
   Uncontrolled nonepoxide organic
HAP emissions from continuous or
batch catalyst extraction unit operations
are measured after the exit from the
continuous or batch unit operation,  but
before any recovery devices; and
controlled emissions are measured at
the outlet of the combustion, recovery,
or recapture device. Primary condensers
operating as reflux condensers are
considered to be  part of the unit
operation and are not considered to be
recovery devices.

2. Polyether Polyols That Use THF as a
Reactant

  The promulgated rule directly
references the HON process vent
provisions in subpart G for polyether
polyols processes that use THF as a
reactant. These provisions require a
Group I/Group 2 determination. A
group 1  process vent Is one with a flow
rate greater than or equal to 0.005
standard cubic meters per minute, a
HAP concentration greater than or equal
to 50 ppmv, and a TRE less than or
equal to 1.0. Owners or operators of
Group 1 process vents at THF facilities
are required to either reduce organic
HAP emissions by 98 weight-percent,
maintain an outlet concentration of 20
ppmv, or route emissions to a flare.

3. Monitoring, Reporting, and
Recordkeeping Provisions for Process
Vents

  Monitoring, reporting, and
recordkeeping provisions necessary to
demonstrate compliance are also
included in the process vent provisions.
Compliance with the monitoring
provisions is based on parametric
monitoring of the combustion, recovery,
or recapture device, or monitoring of the
process  parameters if ECO is used to
control epoxide emissions.

D. Wastewater Operations

  The final wastewater provisions in
subpart  PPP refer directly to the HON
wastewater provisions. Water that is
discarded from a PMPU is considered to
be wastewater if the water has an annual
average  concentration of organic HAP of
5 parts per million by weight (ppmw) or
greater and an annual average flow rate
of 0.02 liters per minute (0.0053 gallons
per minute) or greater, or an annual
average  concentration of organic HAP of
at least 10,000 ppmw at any flow rate.
There are two types of wastewater:
maintenance wastewater and process
wastewater. The requirements for each
type of wastewater are discussed below.

1. Maintenance Wastewater

  The final rule directly incorporates
the HON requirements In § 63.105 of
subpart  F for maintenance wastewater.
The provisions of § 63.105 require
owners  or operators to prepare a
description of procedures that will be
used to  manage HAP-containing
wastewater created during maintenance
activities and to implement these
procedures.
2. Process Wastewater
  The final rule also directly
incorporates HON provisions for
process wastewater, which are
contained in §63.132 through §63.149
of subpart G. These provisions employ
a Group I/Group 2 approach with
Group  1 process wastewater streams
requiring control. However, subpart PPP
does not incorporate the HON new
source Group 1 process wastewater
stream criteria. That is, the Group 1
process wastewater stream criteria for
new and existing affected sources are
equivalent to the HON existing source
Group  1 criteria. These criteria are as
follows. A Group 1 wastewater stream is
a wastewater stream with a total annual
average concentration of organic HAP
greater than or equal to 10,000 ppmw at
any flow rate, or a total annual average
concentration greater than  or equal to
1,000 ppmw and an annual average flow
rate greater than or equal to 10 liters per
minute (2.6 gallons per minute).
  An owner or operator may determine
the organic HAP concentration and flow
rate of wastewater streams  either (1) at
the point of determination  (where the
wastewater exits the PMPU); or (2)
downstream of the point of
determination, provided that
adjustments are made for changes that
occur to the stream from the point of
determination to the downstream
location. Both the applicability
determination and the Group 1/Group 2
determination must reflect the
wastewater characteristics  before losses
due to volatilization, a concentration
differential due to dilution, or a change
in organic HAP concentration or flow
rate due to treatment.
  There are requirements for wastewater
tanks, surface impoundments,
containers,  individual drain systems,
and oil/water separators that handle
Group  1 wastewater streams. These
provisions require either that specified
measures be undertaken to suppress
organic emissions from the wastewater
stream, or that emissions be vented  to a
control device.
  There are also treatment requirements
for Group 1 wastewater streams to
reduce the organic HAP content in the
wastewater prior to placement in units
without air emissions controls. There
are a number of treatment options for
Group 1 wastewater streams. These
include reducing the total concentration
of organic HAP  to a level less than 50
ppmw, treating the stream  in a steam
stripper meeting specified  design
criteria, reducing the organic HAP mass
flow rate by 99 percent (or by the
fraction removed, or Fr, value for the
HAP), achieving the required mass

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Federal  Register/Vol. 64, No. 104/Tuesday, June  1, 1999/Rules and Regulations
removal (RMR) for the HAP, achieve a
RMR of 95 percent in a biological
treatment process, or treating the stream
in a unit complying with specified
Resource Conservation and Recovery
Act (RCRA) requirements. Also, there is
an exemption if the total source organic
HAP mass flow rate is less than 1 Mg/
yr (1.1 tons/yr).
  The rule requires that inspections be
conducted on waste management units.
It also requires that design steam
strippers and biological treatment units
be monitored, along with control
devices on waste management units.
The rule also contains extensive
provisions outlining how to
demonstrate compliance, including
reporting and recordkeeping provisions.
For more information regarding the
wastewater provisions in this final rule,
consult the January 17, 1997
amendments to the HON (62 FR 2722).
E. Equipment Leaks
  The equipment leak provisions in the
promulgated rule refer directly to the
HON requirements contained in 40 CFR
part 63, subpart H. These final standards
apply to equipment in organic HAP
service for 300 or more hours per year
that is associated with a PMPU,
including valves, pumps, connectors,
compressors, pressure relief devices,
open-ended valves or lines, sampling
connection systems, instrumentation
systems, surge control vessels, bottoms
receivers, and agitators. The provisions
also apply to closed-vent systems and
combustion, recovery, or recapture
devices used to control emissions from
any of the listed equipment.
  The promulgated standard requires
leak detection and repair (LDAR) for
pumps in light liquid service and for
valves in gas or light liquid service. The
LDAR program involves a periodic
check for organic vapor leaks with a
portable instrument  using Method  21 of
appendix A of part 60. If leaks are
found, they must be  repaired within a
certain period of time. These provisions
contain programs where owners or
operators that have demonstrated
success in eliminating leaking
equipment can increase the interval
between leak inspections.
  The final rule also requires LDAR of
connectors in gas or light liquid service.
The monitoring frequency for
connectors is determined by the percent
leaking connectors in the process unit
and the consistency of performance.
  Subpart H also contains standards for
compressors, open-ended lines, pressure
relief devices, and sampling connection
systems. Compressors are required to be
                        controlled using a barrier-fluid seal
                        system, by a closed vent system to a
                        combustion, recovery, or recapture
                        device, or must be demonstrated to have
                        no leaks greater than 500 parts per
                        million (ppm) HAP. Sampling
                        connections must be a closed-purge or
                        closed-loop system, or must be
                        controlled using a closed vent system to
                        a combustion, recovery, or recapture
                        device. Agitators must either be  .
                        monitored for leaks or use systems that
                        are better designed such as dual
                        mechanical seals. Pumps, valves,
                        connectors, and agitators in heavy
                        liquid service; instrumentation systems;
                        and pressure relief devices in liquid
                        service are subject to instrumental
                        monitoring only if evidence  of a
                        potential leak is found through sight,
                        sound, or smell. Instrumentation
                        systems consist of smaller pipes  and
                        tubing that carry samples of process
                        fluids to be analyzed to  determine
                        process operating conditions or systems
                        for measurement of process conditions.
                          Surge control vessels and bottoms
                        receivers are required to be controlled
                        using a closed vent system vented to a
                        combustion, recovery, or recapture
                        device. However, the applicability of
                        controls to surge  control vessels and
                        bottoms receivers is based on the size of
                        the vessel and the vapor pressure of the
                        contents. The criteria for determining
                        whether controls are required for surge
                        control vessels and bottoms receivers
                        are the same as the criteria for
                        determining whether controls are
                        required for storage vessels.
                          The standards require certain records
                        to  demonstrate compliance with the
                        standard, and the records must be
                        retained in a readily accessible
                        recordkeeping system. Subpart H
                        requires that the following records be
                        maintained for equipment that would be
                        subject to the standards: records  of
                        testing associated with batch processes;
                        design specifications of closed vent
                        systems and combustion, recovery, or
                        recapture devices; and test results from
                        performance tests.
                        F. Heat Exchangers
                          The final standards for heat exchange
                        systems directly refer to the heat
                        exchange provisions listed in subpart F
                        of the HON at § 63.104. These
                        provisions require that the owner or
                        operator monitor heat exchange systems
                        for leaks and repair any leaks that are
                        detected.

                        G. General Testing Requirements
                          Specific testing requirements related
                        to each emission  source type are
Included in the applicable sections of
the final rule. Section 63.1437 of the
final rule addresses conditions for
performance tests and compliance
determination procedures for flares.
  Section 63.1437 requires that
performance testing be conducted
during maximum operating conditions
for all emissions sources except for
process vents from batch unit
operations. Tests for process vents from
batch unit operations are to be
performed at worst-case conditions.
  This section limits the time frame for
the maximum operating and worst-case
conditions to either the 6-month period
that ends 2 months before the
Notification of Compliance Status is
due, or the 6-month period that begins
3 months before  the performance test
and ends 3 months after the
performance test. This section also
Indicates that tests should not be
performed under conditions that: (1)
Cause damage to equipment, (2)
necessitate that product made does not
meet an existing specification for sale to
a customer, (3) necessitate that product
made is in excess of demand, or (4)
cause plant or testing personnel to be
subject to unsafe conditions.
  This section clarifies that a
performance test is not required for
flares, and requires that a compliance
determination be conducted for flares in
accordance with § 63.11 (b) of the
General Provisions.

H. Monitoring Levels and Excursions

  Specific monitoring requirements
related to each emission source type are
Included in the applicable sections of
the final rule. Section 63.1438 of the
final rule addresses the establishment of
parameter monitoring levels and
excursions.
  This section specifies how parameter
monitoring levels are to be established.
The three methods are: (1) To establish
parameter levels based exclusively on
performance testing; (2) to establish
parameter monitoring levels based on
performance tests, supplemented by
engineering assessments and/or
manufacturer's recommendations; and
(3) to establish parameter monitoring
levels based on engineering assessments
and/or manufacturer's
recommendations.
  This section also provides definitions
of excursions and how excursions are
related to compliance. Table 3 in this
preamble illustrates instances that are
defined as excursions.

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               Federal Register/Vol. 64,  No.  104/Tuesday, June  1.  1999/Rules and Regulations
                                                                                29427
                                         TABLE 3.—SUMMARY OF EXCURSIONS
      Emission source type
       Type of excursion
                   Description of excursion
Storage vessels, where continuous
  monitoring is required.

Storage vessels, where continuous
  monitoring is not required.
Process  wastewater streams, heat
  exchange systems, or equipment
  leaks.
Continuous  process  vents  using
  combustion,  recovery, or recap-
  ture devices.
Batch process vents using combus-
  tion,  recovery, or recapture de-
  vices.
Process vents using ECO
Daily average exceedance
Insufficient monitoring data 	
If monitoring plan specifies moni-
  toring a parameter,  a filling pe-
  riod exceedance.
If monitoring plan specifies that a
  value must be recorded at spe-
  cific intervals, insufficient moni-
  toring data.
[See the HON]	
Daily average exceedance
                               Insufficient monitoring data
Daily average exceedance
                               Insufficient monitoring data
Batch cycle  parameter  exceed-
  ance.
When the daily average of a monitored parameter is above the max-
  imum, or below the minimum, established level.
Depends on the monitoring plan.
When the average value of one or more parameters, averaged over
  the duration of the filling period for the storage vessel, is above the
  maximum level or below the minimum level.
When measured values are not available for at least 75 percent of
  the specific intervals at which parameters are to be monitored and
  recorded, according to the monitoring plan, during the filling period
  for the storage vessel.
[See the HON Requirements.]
When the daily average of a monitored parameter is above the max-
  imum, or below the minimum, established level.

Insufficient monitoring  data is when an owner or operator fails to ob-
  tain a valid hour of data for at least 75 percent of the  operating
  hours during an operating  day. Four 15-minute parameter meas-
  urements must be obtained to constitute a valid hour of data.
When the daily average of a monitored parameter is above the max-
  imum, or below the minimum, established level.

Insufficient monitoring  data is when an owner or operator fails to ob-
  tain valid parameter measurements for at  least  75  percent of the
  15-minute periods during an operating day.
If time is monitored, when the time from the end of the epoxide feed
  to the end of an ECO is shorter than the minimum duration estab-
  lished for the product class.
If reactor partial pressure  is monitored, when the reactor epoxide par-
  tial pressure at the end of an ECO is above the maximum pressure
  established for the product class.
If epoxide  concentration is monitored, when the epoxide concentra-
  tion in the reactor at the end of an ECO is above the maximum ep-
  oxide concentration  established for the product class.
  The owner or operator Is allowed a
certain number of "excused"
excursions. In the first semiannual
period, the owner or operator is allowed
to excuse six excursions. This
diminishes to one excused excursion for
each semiannual period after the sixth
semiannual period.
  For each excursion that is not
excused, the owner or operator is
deemed to be out of compliance with
the provisions of the final rule. If a
condenser is used and temperature is
the parameter monitored, or if another
recovery or recapture device is used and
organic HAP concentration is the
parameter monitored, then the
excursion is a violation of the emission
limitation. For all other parameter
monitoring situations, an excursion is a
violation of the operating limit.

/. General Provisions
  The final rule incorporates by
reference the General Provisions in
subpart A as promulgated on March 13,
1994. However, the EPA is in the
process of drafting amendments to the
General Provisions. After the
promulgation of the amendments to the
General Provisions, the amended
         General Provisions will be automatically
         considered to be incorporated into this
         subpart. For that reason, as amendments
         are proposed for the General Provisions,
         owners and operators are encouraged to
         comment on how those amendments
         could potentially affect owners and
         operators subject to subpart PPP of part
         63.
           The final rule references the start-up,
         shutdown, and malfunction plan
         requirements in § 63.6(e) (3) of the
         General Provisions. The start-up,
         shutdown, and malfunction plan
         developed for each affected source must
         describe procedures for operating and
         maintaining the affected source during
         periods of start-up, shutdown, and
         malfunction, and must describe
         procedures and a program for corrective
         action for malfunctioning process and
         air pollution equipment used to comply
         with this subpart.

         /. General Recordkeeping and Reporting
         Requirements
           Specific recordkeeping and reporting
         requirements related to each emission
         source type are included in the
         applicable sections of the final rule.
         Section 63.1439 of the final rule
                   provides more general reporting,
                   recordkeeping, and testing
                   requirements. The following are the
                   types of reports that must be submitted
                   to the Administrator, as appropriate:
                   Initial Notification, Precompliance
                   Report, Notification of Compliance
                   Status, Periodic Reports, and Other
                   Reports. The requirements for each of
                   the types of reports are summarized
                   below.
                     Section 63.1434 of the final rule
                   incorporates the reporting requirements
                   of subpart H. The subpart H reporting
                   requirements include an Initial
                   Notification, a Notification of
                   Compliance Status, and Periodic
                   Reports. The information required by
                   subpart H should be submitted along
                   with the information specified in
                   subpart PPP for the applicable report.
                   1. Initial Notification
                     For existing sources, the Initial
                   Notification is required to be submitted
                   June 1, 2000. For new sources, the due
                   date is dependent  on the date of initial
                   start-up date. The  Initial Notification
                   must include the following information:
                     a. The name and address of the owner
                   or operator.

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  b. The address (i.e., physical location)
of the affected source.
  c. An identification of the relevant
standard, or other requirement, that is
the basis of the notification and the
source's compliance date.
  d. An identification of the kinds of
emission points within the affected
source.
  e. A statement of whether or not the
affected source is a major source.

2. Precompliance Report
  Affected sources making one or more
of the following requests must submit a
Precompliance Report 1 year before
their compliance date: (1) Requesting an
extension for compliance; (2) requesting
approval to use alternative monitoring
parameters, alternative continuous
monitoring and recordkeeping, or
alternative controls;  (3) requesting
approval to incorporate a provision for
ceasing to collect monitoring data,
during a start-up, shutdown, or
malfunction, into the start-up,
shutdown, and malfunction plan, when
that monitoring equipment would be
damaged if it did not cease to collect
monitoring data; or (4) requesting to
establish parameter monitoring levels
based on engineering assessments and
manufacturing recommendations.
Supplements to the Precompliance
Report may also be submitted after the
due date of the Precompliance Report, if
the owner or operator finds it necessary
to clarify or modify information
previously submitted under the original
Precompliance Report. In addition, the
final rule provides that, unless the
Administrator has objected to a request
made in the Precompliance Report or a
supplement to the Precompliance
Report within 45 days of its receipt, the
lequest shall be automatically deemed
"approved."
  An owner or operator who submits an
operating permit application may
submit the information specified in the
Precompliance Report, as applicable,
with the operating permit application,
in addition to any other information
required to be included in the operating
permit application.
3. Notification of Compliance Status
  The Notification of Compliance Status
is required to be submitted within 150
days after the source's compliance date.
The information required to show
compliance for each emission point
must be included in the Notification of
Compliance Status. Such information
includes, but is not limited to, results of
any performance tests, design analyses,
and parameter monitoring levels for
each emission point and supporting
data for the designated level.
                        4. Periodic Reports

                          Generally, Periodic Reports are
                        required to be submitted semiannually.
                        However, if a combustion, recovery, or
                        recapture device for a particular
                        emission point or process section has
                        more than the excused number of
                        excursions, or if the regulatory authority
                        requests it of the owner  or operator,
                        quarterly reports may be required for 1
                        year for that emission point. After 1
                        year, semiannual reporting may be
                        resumed, if no additional excursions
                        occur.
                          The Periodic Report must report when
                        excursions occur, as well as results of
                        any performance tests conducted during
                        the reporting period. For equipment
                        leaks, Periodic Reports must contain
                        summary information on the LDAR
                        program, changes in monitoring
                        frequency or monitoring alternatives,
                        and/or initiation of a quality
                        improvement program (QIP).

                        5. Other Reports

                          Other reports required under the final
                        rule include: (1) Reports of process
                        changes that change the compliance
                        status of process vents; (2) reports of
                        changes to the primary product of a
                        PMPU  or process unit that becomes a
                        PMPU  as a result of the  change; (3)
                        reports of the addition of a new PMPU
                        or emission point (other than an
                        equipment leak); (4) reports of
                        reconstruction or new source
                        construction; (5) requests for approval to
                        use alternative monitoring parameters,
                        alternative continuous monitoring or
                        recordkeeping, or alternative controls;
                        and (5) requests for extensions of the
                        allowable repair period  and
                        notifications of inspections for storage
                        vessels and wastewater.
                        IV. Control Technology  Basis of the
                        Standard

                          The rule requirements are based on
                        the MACT floor level of control for the
                        following emission types for polyether
                        polyols made with epoxides: storage
                        vessels, process vent epoxide emissions,
                        process vent nonepoxide emissions
                        from catalyst extraction, and equipment
                        leaks. The Agency selected
                        requirements more stringent than the
                        floor for wastewater emissions and for
                        nonepoxide organic HAP process vent
                        emissions from making  or modifying the
                        product. For polyether polyols made
                        with THF, the Agency selected
                        requirements more stringent than the
                        MACT floor level of control for all of the
                        emission types (i.e., storage, process
                        vent emissions, equipment leaks and
                        wastewater). These MACT control levels
have not changed since the September
4, 1997 proposal (62 FR 46804).
  The HON control basis establishes
MACT for both polyether polyols made
with epoxides and polyether polyols
made with THF, although forpolyether
polyols made with THF, the HON
control level is above the floor. The only
exception to this HON control basis is
where control levels established in the
"Control of Volatile Organic Compound
Emissions From Batch Processes—
Alternative Control Techniques
Information Document," Document No.
EPA-453/R-94-020 (i.e.. the Batch
ACT), are the above the floor control
basis for process vents from batch unit
operations.
  The HON level of control establishes
the basis for MACT for this standard
because the continuous unit operations
in polyether polyols manufacturing
plants are fairly similar to the process
units at sources that are subject to the
HON. Given the similarity of PMPUs to
process units subject to the HON and
the fact that the HON level of control
had received extensive evaluation
during the development of the HON, the
EPA concluded that the cost and other
impacts of the HON levels were
representative of those that could be
expected for the polyether polyols
production industry. The estimated cost
effectiveness for the Batch ACT was
determined to be comparable to the cost
effectiveness of the HON continuous
vent provisions and is expected to be
comparable to the cost effectiveness of
the process vent requirements in this
final rule.
V. Summary of Impacts
  The impacts discussed in this section
are presented relative to a baseline
reflecting the level of control in the
absence of the rule. See the baseline
emissions memorandum in the
Supplementary Information Document
for Proposed Standards (EPA-453/R-
97-OlOc, May 1997) for a detailed
discussion of this approach. The
impacts for existing sources were
estimated by bringing each facility's
control level up to the levels of the
standards. According to industry
representatives, no new sources were
projected to be constructed in the next
5 years. Therefore, no new source
impacts were estimated.

A. Air Impacts
  These promulgated standards are
estimated to reduce HAP emissions
from all existing sources of polyether
polyols by 1,810 Mg/yr (2,000 tons/yr).
This represents a 47 percent reduction
from the baseline level of emissions.
This reduction is relatively low, since

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               Federal Register/Vol. 64, No.  104/Tuesday, June 1, 1999/Rules  and Regulations
                                                                     29429
several affected facilities have already
installed stringent pollution controls in
response to State air toxics rules.

B. Other Environmental Impacts
  All the HAP being reduced by this
regulation are also volatile organic
compounds (VOC); thus, a reduction of
1,810 Mg/yr (2,000 tons/yr) of VOC is
anticipated as a result of implementing
these standards. However, emissions of
other criteria pollutants are estimated to
increase by 80 Mg/yr (88 tons/yr) as a
result of operating process vent and
wastewater emission control systems to
comply with the standards. Therefore,
the net reduction in criteria pollutants
resulting from  this regulation is
anticipated to be 1,730 Mg/yr (1,900
tons/yr).

C, Energy Impacts
  The total nationwide  energy demands
that will result from implementing the
process vent and wastewater
requirements are around 4.7 x 10 10
British thermal units annually (Btu/yr).
D. Cost Impacts
  Cost impacts include  the capital costs
of new control equipment, the cost of
energy (supplemental fuel, steam, and
electricity) required to operate control
equipment, operation and maintenance
costs, and  the cost savings generated by
reducing the loss of valuable raw
materials in the form of emissions. Also,
cost impacts include the costs of
monitoring, recordkeeping, and
reporting associated with these
promulgated standards.
  Under the final rule, it is estimated
that total capital costs for existing
sources will be $10.2 million (August
1996 dollars) and that total annual costs
will be $7.7 million per year. The actual
compliance cost impacts of the final
rule could be less than estimated, due
to the potential to use common
combustion, recovery, or recapture
devices, upgrade existing combustion,
recovery, or recapture devices, use other
less expensive control technologies, or
implement pollution prevention.
Because the effect of such practices is
highly site-specific and data were
unavailable to  estimate  how often the
lower cost compliance practices could
be utilized, it is not possible to quantify
the amount by which actual compliance
costs will be reduced.

E. Economic Impacts
  The goal of the economic impact
analysis (EPA Document No. EPA-453/
R-97-013, May 1997) is to estimate the
market response of the polyether
polyols industry to the emission
standards and determine any adverse
effects that may result from the
regulation. Approximately 78 facilities
owned by 36 different companies
producing polyether polyols
domestically may potentially be affected
by the regulation.
  Since the nationwide annualized cost
of this regulation of $7.7 million
represents approximately 0.06 percent
of the estimated 1996 sales revenues for
domestically produced polyether
polyols, the EPA determined that the
regulation is not likely to have a
significant economic impact on this
industry as a whole. For this reason, a
streamlined economic analysis was
performed to determine facility-specific
impacts. Facility-specific impacts were
examined by calculating the ratio of the
estimated annualized costs of controls
for each facility to the estimated
revenues per facility (i.e., cost-to-sales
ratio) to assess the likelihood of facility
closures and employment impacts. A
cost-to-sales ratio exceeding 1 percent
was determined to be an initial
indicator of the potential for a
significant facility impact.
  Costs exceeded 1 percent of sales for
only one facility out of the 78 facilities
affected by the regulation. This firm is
estimated to potentially experience a
cost-to-sales ratio of 1.5 percent. Based
on an analysis of the costs of
compliance compared to facility and
company financial data for this firm, the
EPA concluded that it was unlikely that
the company owning this facility would
choose to close it. The company is
financially robust and the costs are a
small share of the total company sales
and net income. Therefore, the facility-
specific impacts are not considered to
be significant for any facility affected by
this promulgated regulation. The
generally small scale of the impacts
suggests that there will also be no
significant impacts on markets for the
products made using polyether polyols,
such as polyurethanes. For more
information, consult the economic
impact report entitled "Economic
Analysis Of Air Pollution Regulations:
Polyether Polyols Production, May
1997" in the docket for today's rule.

VI. Significant Comments and Changes
to the Proposed Standards
  Comments on the proposed rule were
received from industry and trade
organizations. A detailed discussion of
these comments and responses can be
found in the Basis and Purpose
Document for the Final Standards
(EPA-453/R-99-002b).
  There were a number of comments
submitted that were considered to be
significant by the EPA. These significant
comments covered many aspects of the
rule. The Agency's review of the
significant issues raised by the
commenters resulted in changes to the
proposed rule in many instances. This
section summarizes the significant
comments raised and provides the
EPA's response.

A. Primary Product Determination
  One commenter expressed confusion
over aspects of the primary product
determination in the proposed rule,
particularly the provision that specified
how a non-PMPU could become a
PMPU after the initial  determination
based on actual production. The EPA
agrees that this portion of the proposed
primary product provisions needed
clarification. In fact, the EPA conducted
an overall review of the proposed
primary product provisions, and
concluded that several structural and
clarifying changes were needed. In
addition, the EPA noted some potential
situations that could occur that were not
addressed in the proposed provisions.
  The specific concern raised  by the
commenter was addressed by clearly
stipulating how owners or operators of
non-PMPUs are to determine whether
they have become subject to the rule
after the initial primary product
determination. The final rule specifies
that non-PMPUs that have produced
polyether polyols in the past 5 years are
to annually re-determine the primary
product using actual production values.
The rule also specifies how a non-PMPU
process unit is to determine the primary
product if it has not produced polyether
polyols in the past 5 years, but plans to
produce polyether polyols in the future.
  The proposed provisions required that
initial primary product determination
be based on a 5-year prediction of
anticipated production by the owner or
operator. The EPA is aware that, in
some instances, the owner or operator
may not be able to make such a
prediction. Clarifications and/or
revisions were made to the primary
product provisions to address this
situation. First, in the initial
determination, the time frame for which
production must be anticipated for new
process units was changed to 1 year.
Also, provisions were added for owners
or operators that cannot determine their
primary product based on anticipated 5-
year (or 1-year) production. To
summarize, if polyether polyols have
been produced in an existing process
unit for 5 percent or greater of the time
since September 4, 1997, then the
process unit is designated as a PMPU
and is subject to the existing source
provisions of subpart PPP. For new
process units, if polyether polyols will
be produced at any time during the first

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 year of production, then the unit is a
 PMPU and is subject to the new source
 provisions of subpart PPP.
   In addition to the provisions
 discussed above that specify how non-
 PMPUs are to determine If they become
 PMPUs (i.e., subject to subpart PPP), the
 EPA has also clarified and expanded the
 provisions that specify how the PMPU
 designation can be removed from a
 process unit. The first case, which is
• retained from the proposed rule, is
 where production of polyether polyols
 ceases and the owner or operator does
 not anticipate the production of
 polyether polyols in the future. Also,
 the EPA has added provisions that
 specify procedures for a primary
 product reevaluation based on actual
 production. If an owner or operator of
 a PMPU finds that another product has
 been produced for a greater amount of
 time than polyether polyols over a
 specified time period (previous 5 years
 or since beginning the production of
 polyether polyols), then the PMPU
 designation could possibly be removed.
 The stipulation is that production of the
 "new" primary product must make the
 process unit subject to another part 63
 NESHAP. If the new primary product is
 not subject to another part 63 NESHAP
 and polyether polyols continue to be
 produced, the process unit continues to
 be classified as a PMPU and continues
 to be subject to subpart PPP.
   The EPA has also added provisions
 addressing the determination of the
 primary product in situations where two
 or more products are produced
 simultaneously. Also, clarifications
 were made in the reporting and
 recordkeeping requirements associated
 with the primary product
 determination. A more in-depth
 explanation of the primary product
 determination procedures in
 §63.1420(e)  can be found in the
 preamble to the proposed amendments
 to the Polymers and Resins I and IV
 NESHAP (64 FR 11563). The primary
 product provisions in § 63.1420 (e)
 mirror those proposed  in §§63.480(f)
 and63.1310(f).

 B. Definition of "PolyetherPolyol"
   In the proposed rule a "Polyether
 Polyol" was defined as:
 * * *  a compound formed through the
 polymerization of ethylene oxide (EO) or
 propylene oxide (PO) or other cyclic ethers
 with compounds having one or more reactive
 hydrogens (i.e., a hydrogen atom bonded to
 nitrogen, oxygen, phosphorus, sulfur, etc.) to
 form polyethers. This definition excludes
 materials regulated under the HON, such as
 glycols and glycol ethers.
   One commenter requested that the
 EPA revise the definition of "polyether
                        polyol" to clarify that the production of
                        typical alkanolamines, which lack
                        repeating ether units, is not regulated
                        under subpart PPP. Another commenter
                        explained that hydroxy ethyl cellulose
                        is formed through the reaction of EO on
                        cellulose polymer molecules. This
                        commenter requested that the EPA
                        clarify whether hydroxy ethyl cellulose
                        manufacturing is included or excluded
                        from the definition of "polyether
                        polyol."
                          The EPA has revised the definition of
                        "polyether polyol" in the final rule
                        addressing both of these issues by
                        excluding the production of hydroxy
                        ethyl cellulose and by specifying that a
                        polyether must have two or more ether
                        bonds.

                        C. Definition of "Process Vent"
                          The definition of "process vent" in
                        the proposed rule did not include any
                        cutoffs based on the flow or HAP
                        concentration of the process vent. One
                        commenter was concerned that the
                        definition of "process vent" did not
                        have a de minimis cutoff, as does the
                        definition of "process vent" in the HON.
                        The cutoff suggested by the commenter
                        (0.005 weight-percent total organic
                        HAP) has been incorporated into the
                        final definition of a process vent, for
                        process vents from continuous unit
                        operations. This decision was based on
                        the fact that the EPA considers it to be
                        impractical to impose requirements for
                        process vent streams with such low
                        HAP concentrations (less than 0.005
                        weight percent organic HAP).  For
                        similar reasons, a de minimis  cutoff for
                        process vents from batch unit operations
                        was also added in the final rule. In the
                        Polymers and Resins I and IV NESHAP,
                        the batch process vent definition
                        contains a de minimis cutoff of 225 kg/
                        yr uncontrolled HAP emissions. The
                        EPA believes that this level is also an
                        appropriate de minimis level for process
                        vents from batch unit operations in the
                        polyether polyols industry.

                        D. Outlet Concentration Limit as an
                        Alternative Epoxide Process Vent
                        Emission Limit for New Sources
                          The proposed rule did not include a
                        concentration limit as an alternative
                        epoxlde process vent emission limit for
                        new sources. The preamble to the
                        proposed rule solicited comments on
                        this subject, to which four commenters
                        responded. AH four recommended a 20
                        ppmv alternative concentration limit.
                        The commenters indicated that the
                        preambles for the New Source
                        Performance Standards for VOC
                        Emissions from Synthetic Organic
                        Chemical Manufacturing Industry
                        (SOCMI) Distillation Operations (40
CFR part 60, subpart NNN), and the
HON (40 CFR part 63, subpart G)
provided rationales for a 20 ppmv
limitation that also are applicable to the
polyether polyols rule.
  In subpart NNN's preamble (48 FR
48932, October 21, 1983), the EPA
stated that the outlet concentration of 20
ppmv was established based on kinetic
calculations of incinerators. It was
demonstrated that, at a given
temperature and residence time, a
stream with a low inlet concentration
could not demonstrate an outlet
concentration below 20 ppmv. In the
preamble to the proposed amendments
to the HON (61 FR 43698, August 26,
1996), the EPA expanded the
application of this lower bound
concentration performance standard to
control/recovery devices other than
incinerators. In the HON preamble, the
EPA explained that recovery devices are
designed to typically reduce emissions
to the same outlet concentration level
given a relatively wide range of inlet
concentrations. When the inlet
concentration is substantially below the
design maximum leading conditions
(and begins to approach the residual
level in the outlet stream), the recovery
device efficiency will decrease.
  The EPA agrees that the rationales for
the 20 ppmv concentration limit
provided in the preambles discussed
above are also applicable to subpart
PPP. Further, the technological
limitations that form the basis for this
alternative 20 ppmv limit are applicable
to combustion, recovery, and recapture
devices that may be used at existing
affected sources or new affected sources.
Therefore, the EPA believes it is
appropriate to also allow this alternative
for new sources.
  Therefore, the final rule contains an
alternative concentration limit of 20
ppmv for both new and existing sources.
This concentration is measured at the
outlet of the combustion, recovery, or
recapture device.
  Another commenter advocated that
the alternative 20 ppmv concentration
limit should apply more  broadly to
process vents that do not utilize a
combustion, recovery, or recapture
device to reduce epoxide emissions. The
examples provided by the commenter
included vents from equipment
practicing a very long ECO or vents from
equipment where the epoxide content is
very low and emissions are very small.
  As discussed above, the lower outlet
concentration limit recognizes that there
is a lower outlet concentration
boundary, below which combustion,
recapture and control devices cannot
achieve. The EPA understands that the
outlet concentration after ECO may be

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                                                                    29431
as low as that after a combustion,
recovery, or recapture device. However,
this is not based on technological
limitations  of ECO, as is the basis for the
20 ppmv concentration limit for
combustion, recovery, and recapture
devices. Therefore, the EPA believes
that allowing the 20 ppmv
concentration limit for ECO is not
appropriate.
 . Further, the EPA does not believe that
it is appropriate to use this alternative
concentration requirement as a  de
minim is cutoff for vents where  the
epoxide content is very low and
emissions are very small. The EPA
believes that the HAP concentration and
emission de minimis cutoffs in
definition of the process vent (discussed
above in Section V.C) adequately
address these vents.
  Finally, the proposed existing source
concentration limit was 20 ppmv of
total epoxides. Other rules, such as the
HON, allow the option of determining
outlet concentration limits on a TOC
basis. In many instances in the
polyether polyols industry, the  EPA
believes that all the TOC in the  emission
stream will be epoxides, making the
TOC and epoxide concentration
equivalent.  In fact, if there were other
TOC in the  stream, compliance  with a
20 ppmv TOC limit would mean that
the epoxide concentration would
necessarily be less than 20 ppmv. For
these reasons, the EPA believes that
having the alternative concentration
limits based on total epoxides or TOC is
appropriate for this rule.  As discussed
later in Section V.J, the EPA decided to
allow Method 25A (which is designed to
measure TOC) to determine compliance
with the alternative concentration
limits.

E. Flares as a Reference Control
Technology
  Two commenters requested that the
EPA allow  flares as a reference  control
technology for process vents at  existing
and new sources. The EPA agreed with
the commenters that flares are an
acceptable  reference control technology
for situations where the required
organic HAP emission reduction is 98
percent or less. The final rule allows
flares as a reference control technology
for epoxide process vent emissions at
existing sources, for Group 1
nonepoxide organic HAP process vent
emissions at new and existing sources,
and for nonepoxide organic HAP
process vent emissions from catalyst
extraction at new and existing sources.
However, the data presented by the
commenters do not support a
destruction efficiency of 99.9 percent for
flares combusting EO and PO, which is
die equivalent percent reduction
efficiency for the epoxide process vent
limitation for new sources. Therefore,
the EPA cannot allow flares as a
reference control technology for epoxide
process vent emissions at new sources.

F. Group Determination on an
Individual Process Vent Basis for
Nonepoxide Organic HAP Emissions
From Making or Modifying the Product
  In addition to the use of epoxides
reactants, some polyether polyol
producers use organic HAP as initiators,
solvents, viscosity adjusters, or in other
ways to provide special properties to the
final products. To address emissions of
these nonepoxide organic HAP, the
proposed rule contained requirements
for "nonepoxide organic HAP used in
making or modifying the product." To
determine whether control of these
nonepoxide organic HAP emissions was
required, the proposed rule used a
"group" applicability approach, where
vents that were classified as Group 1
were required to be controlled by 90
percent. The proposed rule required diat
the group determination be performed
on an aggregate basis. That is, the stream
characteristics for all process vents from
continuous unit operations within the
PMPU  dial were associated with die use
of die nonepoxide organic HAP to make
or modify die product were combined
and die group criteria applied to die
theoretical  combined stream. Similarly,
die batch vent group determined was on
an aggregate basis.
  Two commenters raised the point diat
die equations and other criteria for
deciding whether a vent is Group 1 or
Group  2 were based on cost-
effectiveness decisions related to
controlling individual process vents,
and that those equations were borrowed
from other rules, where diey were
applied on an individual vent basis. The
commenters requested dial owners or
operators have the option of making the
group determinations for nonepoxide
process vents on a vent-by-vent basis,
rather than being required to do the
group determination for the
combination of all process vents.
  The EPA agrees with the statement
that die Group 1 criteria are essentially
cost-effectiveness decisions. The group
determinadon criteria in odier MACT
standards, specifically the HON  (for
process vents from continuous unit
operations) and Polymers and Resins I
and IV (for process vents from batch
unit operations), are based on cost
effectiveness. Prior to proposal, the EPA
concluded  that the cost-effectiveness
based group criteria from the HON and
die Polymers and Resins rules were also
appropriate measures of the cost
effectiveness of controlling process vent
streams at polyedier polyols facilities,
given die similarities in die process vent
stream parameters between die affected
industries. Therefore, these group
determination criteria were borrowed
for the proposed subpart PPP. However,
the EPA does recognize that in all three
of die rules cited above, the group
determinadon is applied to individual
process vents.
  The EPA agrees diat die TRE index
approach was developed for, and has
been applied to, individual vents. The
EPA further agrees dial applying die
TRE approach to the combination of
process vents from continuous unit
operations in a PMPU is not appropriate
widiout conducting an analysis to
validate die equations for die
combination of vents, or developing
new equations. Rather dian take this
approach, the EPA has decided, in the
final rule, to apply die Group 1 criteria
for process vents from condnuous unit
operations that use nonepoxide organic
HAP to make or modify die product to
individual process vents.
  For process vents from batch unit
operations that use nonepoxide organic
HAP to make or modify the product,  the
Group 1 equations are the same
equations employed in die Polymers
and Resins I and IV MACT standards
(40 CFR part 63, subparts U and JJJ,
respectively). The EPA agrees widi the '
commenters diat in these polymers and
resins standards, die Group criteria are
applied to individual vents. However,
unlike die TRE for process vents from
condnuous unit operations, die group
determination approach diat is used  in
subparts U, JJJ, and PPP, was originally
developed to be used for either
individual vents or the combination  of
vents.
  The original source of die batch vent
group determination approach is the
Batch ACT document. On page 7-5 of
diat document, the EPA states "The
control option requirements presented
in Chapter 6 apply to (1) individual
batch VOC process vents to which die
annual mass emissions and average
flowrate cutoffs are applied directly,
and (2) aggregated VOC process vents
for which a singular annual mass
emission total and average flowrate
cutoff value is calculated and for which
die option is applied across an aggregate
of sources." Therefore, for process vents
from batch unit operations, die EPA
disagrees with die statements diat  die
group determination equations are being
used "in a totally different context" and
diat diere is no supporting rationale  for
using diem. The final rule retains the
requirement that die Group criteria be
applied to the nonepoxidte organic HAP

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 emissions from the combination of
 process vents from batch unit operations
 associated with the use of nonepoxide
 organic HAP to make or modify the
 product.
 G. Possibility of Dual Controls for
 Nonepoxide Organic HAP Emissions
 From Making or Modifying the Product
   As discussed above, the proposed rule
 required group determinations for the
 nonepoxide organic HAP process vent
 emissions from making or modifying the
 product. One commenter pointed out
 that the proposed rule was not clear
 about when and where to make this
 group determination. The commenter
 also noted that a process vent that uses
 a control technique for epoxides only
 (e.g., a scrubber or ECO) would require
 a second control technique for the
 nonepoxide organic HAP emissions.
   The EPA considered the commenter's
 points and the options suggested by the
 commenter. The final rule requires that
 the group determination for nonepoxide
 organic HAP emissions be made after
 the stream has been controlled for the
 epoxide emissions. The EPA believes
 that this approach addresses the
 situation regarding the possibility of
 dual control. If the epoxide control
 device also reduces nonepoxide
 emissions, then that control would
 impact whether the vent (or group of
 batch vents) is Group 1. Therefore,
 control of nonepoxide emissions along
 with the epoxides will impact whether
 controls are required at all. If the vent
 (or group of vents) still has sufficient
 nonepoxide organic HAP emissions
 after the epoxide control device to
 satisfy the Group 1 criteria, the EPA
 does not believe it is unreasonable to
 require an additional control device to
 achieve the specified percent reduction
 of the nonepoxide emissions.
 H. Worst-Case Testing Requirements
  The proposed rule required that
 performance tests for process vents be
 conducted during worst-case operating
 conditions for the process. Four
 commenters requested that this
 requirement be deleted from  the rule.
  Worst-case testing requirements were
 not deleted from the final rule, but were
 revised. The EPA's reason for requiring
 compliance testing under worst-case
 conditions is so that the reduction
 efficiency of the control device is
 documented under the most challenging
 conditions for that control device,
 especially since commenters  noted how
 difficult it is to represent a typical
venting episode. The phrase "worst-
 case" in die proposed rule referred to
the operating conditions of the process
 (or PMPU). The worst-case testing
                        requirement has been revised to require
                        testing during the worst-case conditions
                        with respect to the combustion,
                        recovery, or recapture (i.e., control)
                        device.
                          Presumably, die control device should
                        function as well or better under
                        conditions that are not as challenging.
                        By revising the rule to require testing
                        during the worst-case conditions with
                        respect to the control device,
                        continuous monitoring of operating
                        parameters established during the test
                        provides a reasonable measure of
                        continuous compliance with the
                        efficiency requirement under all
                        conditions.
                          The commenters asserted that there is
                        no obvious technological difference that
                        would require a different approach to
                        performance testing in this rule from
                        other regulations that have allowed
                        performance tests during representative
                        operating conditions. The EPA disagrees
                        with the commenters' rationale. The
                        EPA believes that there are obvious
                        technological differences from the
                        polyether polyols industry to industries
                        previously regulated (particularly
                        SOCMI type industries) since polyether
                        polyols are produced on a batch basis.
                        There is much more variance in the
                        process vent parameters (i.e., flow and
                        concentration) for process vent streams
                        from batch unit operations, compared to
                        process vents from continuous unit
                        operations. In fact, this point was
                        stressed by commenters. The EPA
                        believes that it is  more appropriate to
                        compare the requirements of this rule
                        with other rules dial also regulate
                        industries that operate on a batch basis.
                        For this rule, the EPA not only
                        compared the worst-case testing
                        conditions with other rules regulating
                        batch processes, but adopted similar
                        language to that which is contained in
                        the Pharmaceutical Production NESHAP
                        (40 CFR part 63, subpart GGG).
                          The EPA would like to clarify a
                        misconception related to these worst-
                        case testing provisions. It is not the
                        intent that production schedules be
                        significantly altered,  or that impractical
                        scenarios be created for testing that
                        would never occur In actual production.
                        In other words, the EPA intends that
                        testing be conducted for the worst-case
                        situation that can reasonably be
                        expected to occur during normal
                        production. In order to clarify this
                        Intent, the EPA has added language in
                        § 63.1438, the general testing section of
                        the rule. This new language specifies
                        that absolute worst case testing
                        conditions does not include situations
                        that could cause damage to equipment,
                        situations dial necessitate that the
                        owner or operator make products that
 do not meet an existing specification for
 sale to a customer, or situations that
 necessitate that the owner or operator
 make products in excess of demand.
   The added language in § 63.1438 also
 specifies the time period in which the
 worst-case conditions are to be
 determined. This time period is either
 the 6-month period that ends 2 months
 before the Notification of Compliance
 Status is due, or the 6-month period that
 begins 3 months before the performance
 test and ends 3 months after the
 performance test By limiting the worst-
 case conditions to one of these 6-month
 periods, the rule eliminates the need for
 an owner or operator to consider
 endless possible production scenarios,
 and allows them to focus on those
 production scenarios in the 6-month
 period selected by the owner  or
 operator.
   In conclusion, die EPA believes that
 requiring that performance tests for
 process vents from batch unit operations
 during absolute worst-case conditions is
 necessary to ensure that the emission
 limitations in the rule are achieved. The
 EPA also believes that, with the
 modifications to the rule made after
 proposal, that the worst-case provisions
 are reasonable and workable for the
 polyether polyols industry.

 1, Engineering Calculations as an
 Alternative to Performance Testing
   Three commenters voiced concern
 over the feasibility, accuracy,  expense,
 and safety of measuring emissions from
 process vents from batch unit
 operations. The commenters stated that
 a performance test on these short
 duration, variable vents is  likely to be
 very inaccurate and potentially
 dangerous. Two of the commenters
 recommended that a  material  balance
 based on common engineering
 calculations should be allowed in the
 final rule as a compliance
 demonstration option. The commenters
 stated that engineering calculations
 would provide a more accurate, less
 costly, and significantly safer means to
 verify compliance.
  The EPA recognizes that there are
 issues related to the feasibility,
 accuracy, and expense of testing process
vents from batch unit operations. The
 EPA would refer readers to Section 7.3
 of the Batch ACT for a detailed
 discussion of these issues. However, the
 EPA does believe that accurate emission
 tests can be conducted for these process
vents.
  One reason that the EPA has
historically required performance
 testing for control devices that reduce
emissions from process vents, when
 engineering analyses  are allowed for

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                                                                    29433
other emission sources (such as storage
vessels), is that emissions from process
vents are typically significantly larger
than those from other emission sources.
When emissions are larger, the EPA
believes that it is important that the
effectiveness of the control device be
accurately determined by a performance
test.
  Given that the magnitude of the
emissions was a part of the basis for
requiring performance tests, the EPA
believes that it is reasonable to allow an
alternative to performance testing for a
process vent control device if emissions
being routed to the device are
comparable to the emissions that would
be vented to control devices for other
emission sources for which performance
tests are not required. Therefore, the
EPA decided that engineering
assessments could be allowed in lieu of
performance testing for "small" control
devices that reduce HAP emissions from
process vents. For the Pharmaceutical
Production NESHAP, the EPA also
determined that it was appropriate to
allow engineering calculations as an
alternative to performance testing for
small control devices, where a small
control device is defined as one with
uncontrolled annual HAP emissions of
less than 10 tons/yr (9!l Mg/yr). The
EPA believes that this level of
uncontrolled emissions is also
appropriate to define a small control
device for the polyether polyols
industry. Therefore, the final rule allows
the use of a design evaluation instead of
a performance test if the control device
receives less than 10 tons/yr  (9.1 Mg/yr)
uncontrolled emissions from one or
more PMPUs.
  The exemption from performance
testing for small control devices
discussed above should help to alleviate
some of the concerns raised by the
commenters. Many of the concerns
related to the feasibility, accuracy, and
expense of testing these batch vents are
due to the short duration, variable
nature of batch venting episodes. The
EPA believes that if a control device
receives more than 10 tons/yr (9.1 Mg/
yr) of uncontrolled HAP-emissions, it is
likely that the vent streams being routed
to the device are of longer duration and
less variable, thus making it easier to
conduct the performance test.
  However, the EPA also recognizes that
the small control device exemption will
not totally eliminate the concerns raised
by the commenters. Therefore, the EPA
made other changes to the testing
requirements to address potential
problems related to the testing of batch
process vents, which are briefly
discussed below.
  Since batch emission episodes can be
less than 1 hour, the rule was changed
to specify that test runs be conducted
for the complete duration of the batch
venting episode or 1 hour, whichever is
less. Other references to 1-hour periods
were also removed.
  The proposed rule required the use of
Method 1 or 1A to select sampling sites.
Commenters claimed that, in many
instances, neither method would be
appropriate for the batch vent streams.
The rule was restructured by separating
the paragraph addressing the use of
Method 1 or 1A for sample or velocity
traverses from the paragraphs specifying
the sampling site location. In other
words, if the owner or operator
conducts a sample or velocity traverse,
the final rule requires that Method 1 or
1A be used. However, it does not
require that these methods be used to
select sampling sites.
  With regard to the safety issue, the
final rule states that, in cases where it
is imperative to limit any leakage of
emissions into the work atmosphere, a
sampling port with a double seal should
be installed so that the probe can be
inserted and removed without any
leakage of exhaust gas into the work
atmosphere. Further, the final rule
requires that permanent sampling ports
be Installed at the inlet to the control
device during a period when it is most
convenient (or least disruptive) to shut
the process down (e.g., during a
scheduled maintenance outage). In
addition to these specific requirements,
a general requirement was added that
allows owners or operators to eliminate
potential testing scenarios if the test
could create a situation which could
cause plant or testing personnel to be
subject to unsafe conditions.
  In conclusion, the EPA acknowledges
that issues exist with regard to the
testing of emissions from batch process
units. Changes have been made to the
final rule to address these issues.
However, the Agency maintains that
numerous other industries that utilize
batch processes are regulated by MACT
standards, and are able to conduct
performance tests. The EPA believes
that the commenters did not provide
sufficient rationale why die polyether
polyols industry presents unique testing
problems that are not present in these
other industries that utilize batch
processes. Therefore, the final rule
requires that control devices diat receive
more than 10 tons/yr (9.1 Mg/yr) of
uncontrolled organic HAP emissions
conduct tests to demonstrate control
device performance.
/. Allowable Test Methods for Control
Efficiency Determinations
  The proposed rule required test
Method 18  (40 CFR part 60, appendix
A), or any other method or data that
have been validated according to
Method 301 (40 CFR part 63, appendix
A) for control device efficiency
determinations. Three commenters
noted that this requirement was
inconsistent with the test methods used
by die facility whose data established
the new source MACT floor for epoxide
process vent emissions (Method 25A of
40 CFR part 60, appendix A, was used).
These commenters also discussed the
expense of Method 301 validations, and
noted that the proposed rule relied on
Method 25 A in other parts of the rule
(for wastewater), and that other rules
(such as the Polymers and Resins IV
rule) allow  Method 25A without
Method 301 validation.
  The EPA agrees that allowing of the
use of Method 25A would provide more
flexibility, and potentially provide the
opportunity for less costly testing.
However, the EPA believes that Method
25A should be used only after an
accurate response factor has been
determined. The importance of
calibrating  a flame ionization detector
(FID) reading obtained using Method
25A with respect to a certain compound
(adjustment by response factor)  depends
on how the Method will be used to
demonstrate compliance with the
standard. In general, the EPA believes
that an accurate response factor is
necessary in cases where Method 25A is
used to demonstrate control efficiency
across a device where the composition
of the stream may change, or in
situations where multiple components,
including non-HAP VOC, are present.
Because the relative proportion of
organic compounds may change across
the control device, appropriate response
factors are needed to accurately quantify
TOC at the inlet and outlet of a control
device. In addition, the EPA believes
that owners and operators should have
the opportunity to demonstrate
compliance at die outlet of a control
device by measuring 20 ppmv TOC or
less. Therefore, die final rule does allow
die use of Mediod 25A under certain
condidons. The following describes the
choices of test methods allowed in die
final rule: (1) Method 18 (40 CFR part
60, appendix A) to determine HAP
concentration in any control device
efficiency determination; (2) Mediod 25
(40 CFR part 60, appendix A) to
determine total gaseous nonmediane
organic concentration for control
efficiency determinations in combusdon
devices; (3) Method 25A  (40  CFR part

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Federal  Register/Vol. 64, No.  104/Tuesday,  June 1, 1999/Rules and Regulations
60, appendix A) to determine the HAP
or TOC concentration for control device
efficiency determinations under the
conditions specified in Method 25 (40
CFR part 60, appendix A) for direct
measurement of an effluent with a flame
ionization detector, or in demonstrating
compliance with the 20 ppmv TOC
outlet standard. As an alternative, any
other method or data that have been
validated according to the applicable
procedures in Method 301 (40 CFR part
63, appendix A) may be used.
K. Site-Specific Onset of Extended
Cookout
  In the proposed rule, the EPA
recognized that extended cookout, or
ECO, is a pollution prevention
alternative used by some polyether
polyols producers to reduce epoxide
emissions. The proposed rule required
that owners or operators of existing
sources using ECO achieve the same 98
percent emission reduction (99.9
percent for new sources) that was
required for owners or operators using
combustion, recovery, or recapture
devices. In order to demonstrate a
percent efficiency, it was necessary to
designate the basis, or the
"uncontrolled" emissions, for assessing
the percent reduction. The point where
uncontrolled emissions were to be
assessed, called the "onset" of the ECO,
was defined in the proposed rule as the
point when the epoxide concentration
in the reactor liquid is equal to 25
percent of the concentration of epoxide
in the liquid at the end of the epoxide
feed. Commenters supported this
default ECO onset, and it has been
retained in the final rule.
  In addition to using this "default"
definition of the ECO onset, the
proposed rule allowed owners and
operators the option of defining the
onset of the ECO for their specific
process, at another point. The factors
required to allow an owner or operator
to set a site-specific ECO onset were the
profit variable margin (the difference
between variable costs (raw materials
and energy) of the product and the cost
of the raw material). One commenter
objected to allowing the establishment
of a site-specific ECO onset based on
economics, stating that economics can
be subjective, making it easy to
demonstrate a 98-percent emission
reduction.
  A late submittal from one commenter
challenged the first commenter's
argument that the onset of ECO is
subjective, noting that one of the pieces
of economic information, the price of
the raw material, comes from the
Chemical Market Reporter. However,
the other variable in defining the onset
                        of ECO, the product variable margin and
                        the selling price, was the variable that
                        provoked the original commenter's
                        concern. In fact, the commenter
                        providing the late comment stated that
                        the product variable margin has "a
                        much stronger correlation between
                        product profitability and the economic
                        onset of ECO."
                          Due to the subjectivity of the product
                        variable margin, and the strong
                        correlation between the product variable
                        margin and the ECO onset, the EPA
                        agreed with the first commenter. The
                        EPA revised the final rule, removing the
                        option of setting site-specific ECO
                        onsets. Allowing the determination of a
                        site-specific ECO onset is not consistent
                        with the concept of MACT, since, given
                        the subjectivity of this approach, it
                        could effectively result in different
                        levels of control for facilities in the
                        same source category.
                        L. Parameter Monitoring Excursion
                        Definitions
                          As a result of public comments, the
                        EPA decided to restructure and expand
                        the sections associated with parameter
                        monitoring excursions in order to
                        simplify and clarify these provisions in
                        subpart PPP. The goal of these revisions
                        was to include all of the necessary
                        information about excursions and
                        compliance in one location.
                          At proposal, the definitions of
                        excursions and the statement that
                        owners and operators were out of
                        compliance for each parameter
                        monitoring excursion were located in
                        separate paragraphs. In the final rule,
                        these concepts are combined into the
                        same paragraph (§ 63.1438(fJ).
                          Basically, there are two ways for
                        excursions to occur. The first is if the
                        average parameter value measured is
                        above a maximum, or below a
                        minimum, established value. The
                        second is if Insufficient monitoring data
                        are collected. Revisions were made for
                        both of these instances.
                          Provisions were added specifying that
                        monitoring data recorded during start-
                        ups, shutdowns, and malfunctions, and
                        during periods of non-operation of the
                        affected source (or portion thereof) are
                        not to be included in any average
                        computed. In addition, the EPA has
                        added paragraphs that describe the
                        periods that are not to be included when
                        determining the period of control or
                        recovery device operation, for purposes
                        of determining whether sufficient
                        monitoring data were collected. Under
                        the new provisions, the following
                        periods are not to be used when
                        determining if sufficient monitoring
                        data are available for the owner or
                        operator to avoid having an excursion:
periods of monitoring system
breakdowns, repairs, calibration checks,
and zero (low-level) and high-level
adjustments; start-ups; shutdowns;
malfunctions; and periods of non-
operation of the affected source that
result in the cessation of emissions to
which the monitoring applies.
M. Monitoring During Start-ups,
Shutdowns, and Malfunctions
  The proposed rule required dial
monitoring data be collected during
periods of start-up, shutdown, or
malfunction (SSM). Commenters
requested that the EPA allow a
provision for ceasing to collect
monitoring data at a particular control
device if operating that monitoring
device during periods of SSM would
damage the monitoring device. The EPA
revised the final rule to allow the owner
or operator to cease collecting
monitoring data if the owner or operator
has illustrated that the monitoring
device would be damaged or destroyed
if it were not shut down during the SSM
period. Such a provision must be
included in the Start-up, Shutdown, and
Malfunction Plan. Getting such a
provision in the Start-up,  Shutdown,
and Malfunction Plan is accomplished
by submitting a request, and rationale
defending the request, in the
Precompllance Report or in a
supplement to the Precompliance
Report.
N. Process Vent Control Requirement for
Epoxide Emissions From New Sources
  A major issue raised in the public
comments that did not result in a rule
change was related to the  new source
limitation for process vent epoxide
emissions. The proposed rule included
a requirement that epoxide emissions
from process vents at new affected
sources be reduced by 99.9 percent or
greater. Several commenters objected to
this requirement, and provided
numerous reasons supporting their
objections. Most of these reasons were
related to the facility Identified by the
EPA as the "best performing facility."
upon which this new source limitation
was based. The commenters felt that
this facility was not representative of
the industry, and that a separate
subcategory should be created for this
facility. The commenters also pointed
out that there were inconsistencies
between the test methods  used by this
best performing facility to verify their
epoxide emission reduction and the test
methods that were contained in the
proposed rule. Further, the commenters
stated that the 99.9 percent limitation
would force new sources to utilize
combustion technology, which would

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                                                                     29435
increase criteria pollutants and create
potential safety hazards.
  The EPA spent a great deal of time
evaluating all aspects of this issue. The
EPA concluded that the available data
do not support the assertion that the
polyether polyols source category
should be subcategorized in the manner
suggested by the commenters. Also, the
fact that specific test data (which were
analyzed in detail by the Agency) are
available for this facility and that permit
conditions are in place requiring
compliance at the 99.9 percent level
leaves the Agency little latitude in
establishing new source MACT at a less
stringent level. Discussion of each of the
individual points raised by commenters
is provided below.

1. Subcategorization
  As noted above, several commenters
stated their belief that the facility that
formed the basis for the 99.9 percent
new source epoxide emission
requirement was not representative of
the industry, and that  a separate
subcategory should be created for this
facility. The commenters discussed
three characteristics of this facility to
support this assertion. The first was the
method of operation. The other two
were the'facility's size and the fact that
the facility utilized two incinerators.
  By "method of operation,"
commenters were referring to the
venting method employed during the
reaction phase of the production
process. The commenters stated that.the
best performing facility is not a similar
source, due to the fact that the reactor
vents during the epoxide feed step of
the reaction. The commenters claimed
that such an operation would send high
concentrations of epoxides to the
control device as a continuous or semi-
continuous stream, resulting in an
artificially high destruction efficiency
(compared to a facility that does not
vent unreacted epoxides continuously).
  Prior to the development of the
proposed rule, the EPA understood the
technical merits of this argument, but
did not have sufficient data to allow a
comparison of the venting and emission
characteristics of this  facility with other
polyether polyols production facilities.
Therefore, the EPA requested additional
data in order to conclude whether or not
Subcategorization was warranted on this
basis. Therefore, the preamble to the
proposed rule stated this data need and
specifically requested facility-specific
information, in order to allow for further
evaluation of this issue (62 FR 46814).
  In response to this request, one
 commenter presented a comparison of
uncontrolled and controlled epoxide
emissions for a facility owned by the
commenter that does not vent during
the epoxide feed (i.e., a "nonvented"
facility) with the best controlled facility,
which does vent during the epoxide
feed (i.e., "vented"). Another
commenter provided a comparison of
two facilities owned by the same
company that were reported to be
similar in most aspects, except with
respect to when the facility vents the
reactor (one was vented and one was
nonvented). In addition, one commenter
presented a hypothetical comparison
between a venting facility and a
nonventing facility. All of these
comparisons led to conclusions by these
commenters that uncontrolled
emissions at vented facilities are much
higher than uncontrolled emissions at
nonvented facilities, which would give
vented facilities an unfair advantage in
achieving a higher epoxide emission
reduction.
  The EPA appreciated these
comparisons. However, several
inconsistencies and assumptions were
identified that caused the Agency to
conclude that these comparisons do not,
independently, provide a sufficient
basis for subcategorizing the polyether
polyols source category into vented and
nonvented subcategories. Some of EPA's
concerns with these comparisons are
discussed below.
  With regard to the comparison of an
actual facility with the best performing
facility, the EPA found that the epoxide
emission estimates used for the best
performing facility in the commenter's
comparison were drastically different
from the emission data that were
directly submitted to the EPA by the
best performing facility. Also, the
emission data from the commenter's
facility had been updated from the data
originally submitted during an EPA
plant site visit to that facility. The
estimates provided in the comments
were lower than the original estimates
due to process improvements at the
facility (that were not related to the
method of operation). The EPA
conducted  a similar comparison of the
uncontrolled epoxide emissions at these
same two facilities using the data
originally submitted to the EPA by the
two companies. The results were not In
accordance with those presented by the
commenter. In fact, the uncontrolled
emission factor for the commenter's
facility was higher than the best
controlled facility's factor. Clearly, the
analysis of the data available to the
Agency does not support this
commenter's analysis.
   The actual facility analysis conducted
by a second commenter stated that their
analysis consisted of two facilities
owned by the commenter that were
"similarly sized units." However, the
EPA found that the production capacity
for the nonvented reactor was larger
than that for the vented reactor, and the
emissions were not adjusted
accordingly.
  Finally, the hypothetical analysis
assumed that a water-cooled condenser
was used at the reactor vent The EPA
believes that the use of more efficient
refrigerated condensers, which would
result in considerably lower
uncontrolled emissions, is more
representative of practice in the
industry.
  Given these and other inconsistencies
in the facility comparisons provided by
commenters, the EPA could not
conclude that Subcategorization was
necessary.
  No commenters submitted the facility-
specific data that were requested in the
proposal preamble. Therefore, even if
the examples provided by the
commenters had led to the conclusion
that Subcategorization was warranted,
the EPA did not have sufficient facility
information to allow a complete
Subcategorization evaluation.
  However, the Agency still wanted to
attempt to address the commenters'
concerns on this issue. Given  the lack of
facility-specific data provided by the
industry prior to proposal and during
the public comment period, the EPA
conducted a brief telephone survey to
inquire specifically about the method of
operation at polyether polyol
production facilities. Representatives
from all the facilities in the process vent
database were called and asked to
describe their method of venting during
epoxide feed. Of the facilities for which
the EPA was able to collect method-of-
venting data, 24 percent (including the
best-controlled facility) reported venting
during the epoxide feed step,  and 76
percent reported that their facilities did
not vent during the epoxide feed step.
Therefore, the EPA concluded that the
manner of operation of the best-
controlled facility was not "unique," as
was claimed by several of the
commenters.
  The EPA then sought to determine
whether the different venting modes
during epoxide feed resulted  in
differences In the amount and pattern of
emissions and the achievable degree of
emission reduction. The EPA
determined that using a facility's
uncontrolled emission factor  (mass
uncontrolled epoxide emissions per
mass of polyol product produced) was
the best method of comparison, and
calculated such a factor for each facility
for which sufficient information was
available. For the vented facilities, the
median uncontrolled emission factor

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Federal Register/Vol.  64,  No. 104/Tuesday, June 1,  1999/Rules  and Regulations
 was 0.17 Ib epoxide emissions per 1000
 Ib of product. The mean uncontrolled
 emission factor was considered to be an
 inadequate measure of central tendency,
 because the data points for vented
 facilities had a widely varied
 distribution, with two orders of
 magnitude difference between the ends
 cf the range. For the nonvented
 facilities, the median uncontrolled
 emission factor was 1.09. The
' commenters asserted that uncontrolled
 epoxide emissions at vented facilities
 are considerably higher than those at
 nonvented facilities. However, the
 results of the EPA's analysis, based on
 the best information available, clearly
 do not support this assertion, since the
 median uncontrolled emission factor
 calculated for nonvented facilities is
 over six times higher than the median
 uncontrolled emission factor for vented
 facilities.
   In conclusion, based on all of the
 information available to the Agency, the
 EPA was unable to determine a different
 emission trend between the vented and
 nonvented groups from the data made
 available to the Agency between
 proposal and promulgation. Therefore,
 the EPA did not subcategorize the
 industry based on the method of
 operation.
   The commenters' second rationale for
 supporting their claim that the best-
 controlled facility is not a similar source
 was that the facility's production
 capacity is many times that of other
 sources in the source category. It is the
 EPA's policy (57 FR 31576; July  16,
 1992) that subcategories, or subsets of
 similar emission sources within a
 source category, be defined if technical
 differences in emissions characteristics,
 processes, control device applicability,
 or opportunities for pollution
 prevention exist within the source
 category. The EPA does not believe that
 the fact that the best-controlled facility
 has a larger production capacity satisfies
 any of these criteria. Further, since one
 facility in the process vent database has
 a capacity that is 83 percent of the best-
 controlled facility's capacity, the EPA
 also disagrees that the production
 capacity at the best-controlled facility is
 unusually large in comparison to the
 rest of the source category.
   The third argument given by the
 commenters to support their claim that
 the best-controlled facility is not similar
 to other affected sources was that this
 facility has two incinerators, and that no
 other source uses incineration. The EPA
 disagrees with the commenters' claim
 that the best-controlled facility is the
 only source using an incinerator to
 control epoxide emissions, since there is
 another facility in the database that also
                        uses incineration. Further, the fact that
                        a source has a better control than all
                        other facilities in the source category
                        through the use of one or more
                        incinerators is not a sufficient basis for
                        asserting that the source should be
                        subcategorized. The purpose of MACT
                        is to ensure that regulated sources meet
                        the control standards achieved by the
                        best performing sources in the category.
                        Subcategorization on the basis of the
                        control technology utilized would
                        undermine the very concept of MACT.
                          In addition to the evaluation of the
                        individual points raised by commenters,
                        the EPA also considered whether these
                        characteristics of the best-controlled
                        facility collectively form a basis for
                        Subcategorization. The EPA concluded
                        that, based on the facility-specific
                        process, emissions, and emissions
                        control information provided to the
                        Agency by the polyether polyol
                        industry, a separate subcategory should
                        not be created solely for the best-
                        controlled facility.

                        2. Inconsistency in Test Methods
                          An additional concern raised by two
                        commenters was that the data from the
                        best-controlled facility do not support
                        the new source standard because the
                        Agency used information from the State
                        permit and its corresponding
                        performance test reports as data for the
                        best-controlled facility. The commenters
                        claimed that these data were  submitted
                        to the State agency to demonstrate
                        compliance with permit emission
                        limitations for VOC, not HAP, and to
                        document that the incinerators were
                        meeting the required VOC  destruction
                        efficiency. They noted that there are
                        several significant inconsistences
                        between the test methods used and the
                        methods required in the proposed
                        standards.
                          The EPA disagrees with the
                        commenters' statement that the data
                        from the best-controlled facility do not
                        support the new source standard
                        because the performance test was
                        conducted to determine VOC
                        destruction efficiency instead of
                        epoxide emission destruction efficiency,
                        and that the permit conditions are
                        specific to VOC. The primary pollutant
                        in the stream was propylene oxide (PO),
                        and this is the pollutant for which
                        Method 18, at the inlet of the
                        incinerator, and Method 25A, at the
                        outlet of the incinerator, were calibrated
                        during the test at the best-controlled
                        facility. Therefore, even though the test
                        and permit cite VOC destruction
                        efficiency, it is clear that it is the
                        destruction of PO that was tested and
                        regulated at the best-controlled facility.
                        The commenters' concerns about
inconsistencies between the test reports
and the proposed standards was
discussed in greater detail earlier in this
document, in relation to the changes to
the test method requirements.
3. Increase in Criteria Pollutant
Emissions
  Two commenters explained that the
combustion technology utilized by the
best-controlled facility (which would be
necessary to meet the 99.9 percent
requirement) results in an increase in
criteria pollutants,  which were not
included in EPA's MACT floor analysis,
while alternative control technologies,
such as scrubbers or ECO, would be
expected to cause significantly lower
nitrogen oxides (NOx) emissions. The
EPA is aware that incineration has
secondary criteria pollutant emissions.
However, MACT floor decisions, under
the Clean Air Act, are based on the
reduction of HAP emissions, and not on
their secondary impacts. The EPA also
realizes that an increase in criteria
pollutants could trigger Prevention of
Significant Deterioration (PSD) and/or
New Source Review (NSR).  The EPA has
addressed this issue in previous
NESHAP, by referring to a July 1,1994
guidance memorandum issued by the
EPA (available on the Technology
Transfer Network; see "Pollution
Control Projects  (PCP) and NSR
Applicability" from John S. Seitz,
Director, Office of Air Quality Planning
and Standards to EPA Regional Air
Division Directors). In that
memorandum, the  EPA provided
guidance for permitting authorities
regarding their ability to approve the
PCP exemptions (from PSD  review and
major NSR) for source categories other
than electric utilities that use add-on
controls and switching to less-polluting
fuels to reduce emissions of toxic
pollutants. In the July 1, 1994 guidance
memorandum, the  EPA specifically
identified the combustion of organic
toxic pollutants as  an example of an
add-on control that could be considered
a PCP and an appropriate candidate for
a case-by-case exclusion from major
NSR. The EPA is alert to potential NSR
conflicts and feels that this
memorandum will  alleviate most NSR/
PSD review concerns. In the event that
it will not, the EPA will attempt to
create implementation flexibility on a
case-by-case basis.

4. Safety Concerns
  The commenters claimed that the EPA
has failed to account for potential
process safety considerations associated
with the combustion of ethylene oxide
(EO). The safety issues of incineration of
epoxides were adequately addressed at

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                                                                     29437
the best-controlled facility and the other
facility in the database that has
incineration. Therefore, the EPA did not
find these reasons to be sufficient to
justify eliminating the data from the
best-controlled facility when
determining the MACT floor for new
sources.

VII. Administrative Requirements

A. DocAet
  The docket is an organized and
complete file of all the information
submitted to or otherwise considered by
the EPA in the development of the final
standards. The principal purposes of the
docket are:
  (1) To allow interested parties to
readily identify and locate documents
so that they can intelligently and
effectively participate in the rulemaking
process; and
  (2) To serve as the record in case of
judicial review (except for interagency
review materials (section 307(d)(7)(A))).

B. Executive Order 12866
  Under  Executive Order 12866 (58 FR
51735, October 4, 1993), the EPA must
determine whether the regulatory action
is "significant" and therefore subject to
Office of Management and Budget
(OMB) review and the requirements of
the Executive Order. The Executive
Order defines "significant regulatory
action" as one that is likely to result in
standards that may:
  (1) Have an annual effect on the
economy of $100 million or more or
adversely affect, in a material way, the
economy, a sector of the economy,
productivity, competition, jobs, the
environment, public health or safety, or
State, local, or tribal governments or
communities;
  (2) Create a serious inconsistency or
otherwise interfere with an action taken
or planned by another agency;
  (3) Materially alter the budgetary
impact of entitlement, grants, user fees,
or loan programs or the rights and
obligations of recipients thereof; or
  (4) Raise novel legal or policy issues
arising out of legal mandates, the
President's priorities, or the principles
set forth  in the Executive Order.
  The EPA has determined that this rule
does not meet any of the criteria
enumerated above and therefore, does
not constitute a "significant regulatory
action" under the terms of Executive
Order 12866.

C. Executive Order 13045
  Executive Order 13045,  "Protection of
Children from Environmental Health
Risks and Safety Risks" (62 FR 19885,
April 23,1997), applies to any rule that:
(1) Is determined to be "economically
significant'' as defined under Executive
Order 12866, and (2) concerns an
environmental health or safety risk that
the EPA has reason to believe may have
a disproportionate effect on children. If
the regulatory action meets both criteria,
the Agency must evaluate the
environmental health or safety effects of
the planned rule on children, and
explain why the planned regulation is
preferable to other potentially effective
and reasonably feasible alternatives
considered by the Agency.
  The EPA interprets Executive Order
13045 as applying only to those
regulatory actions that are based on
health or safety risks, such that the
analysis required under section 5-501 of
the Order has the potential to influence
the regulation.  This final rule falls into
that category only in part: The
minimum rule stringency is set
according to a congressionally-
mandated, technology-based lower limit
called the "floor," while a decision to
increase the stringency beyond this floor
can be based on risk considerations.
Only to the extent that the Agency may
consider the inherent toxiciry of a
regulated pollutant, and any differential
impact such a pollutant may have on
children's health, in deciding whether
to adopt control requirements more
stringent than the floor level.
  This final rule is  not subject to
Executive Order 13045 because it is not
economically significant as defined in
Executive Order 12866. No children's
risk analysis was performed for this
rulemaking because no alternative
technologies exist that would provide
greater stringency at a reasonable cost,
and therefore the results of any such
analysis would have no impact on the
stringency decision.

D. Paperwork Reduction Act

  The information collection
requirements in this rule have been
submitted for approval to the Office of
Management and Budget (OMB) under
the Paperwork Reduction Act. 44 U.S.C.
3501 etseq. An Information Collection
Request OCR) document has been
prepared by EPA (ICR No. 1811.02) and
a copy may be  obtained from Sandy
Farmer by mail at OP Regulatory
Information Division; U.S.
Environmental Protection Agency
(2137); 401 M St., SW.; Washington, DC
20460, by email at
farmer.sandy@epa.gov, or by calling
(202) 260-2740. A copy may also be
downloaded off the internet at http://
www.epa.gov/icr. The information
requirements are not effective until
OMB approves them.
  The public recordkeeping and
reporting burden for this collection of
information is estimated to average
1,046 hours per respondent for the first
year and 162 hours for each of the
second and third years (following
promulgation of the rule). Burden
means the total time, effort, or financial
resources expended by persons to
generate, maintain, retain, or disclose or
provide information to or for a Federal
agency. This includes the time needed
to review instructions; develop, acquire,
install, and utilize technology and
systems for the purposes of collecting,
validating, and verifying information,
processing and maintaining
information, and disclosing and
providing information; adjust the
existing ways to comply with any
previously applicable instructions and
requirements; train personnel to be able
to respond to a collection of
information; search data sources;
complete and review the collection of
information; and transmit or otherwise
disclose die information.
  An Agency may not conduct or
sponsor, and a person is not required to
respond to a collection of information
unless it displays a currently valid OMB
control number. The OMB control
numbers for EPA's regulations are listed
in 40 CFR part 9 and 48 CFR Chapter
15.
E. Regulatory Flexibility Act
  The EPA has determined that it is not
necessary to prepare a regulatory
flexibility analysis in connection with
this final rule. The EPA has also
determined that this rule will not have
a significant adverse economic impact
on a substantial number of small
businesses. Consistent with Small
Business Administrative (SBA) size
standards, a polyether polyols
producing firm is classified as a small
entity if it has less dian 750 employees
and is unaffiliated with a larger
domestic entity. Based upon this
standard, 7 of the 36 polyedier polyol
producing firms are classified as small
entities (i.e., having fewer than 750
employees). The EPA determined that
none of these seven small entities will
experience an increase in costs as a
result of the promulgation of today's
rule that is greater than one percent of
revenues. This does not qualify as a
significant economic impact on a
substantial number of small businesses.
F. Submission to Congress and the
Comptroller General
  The Congressional Review Act, 5
U.S.C. 801 et seq., as added by the Small
Business Regulatory Enforcement
Fairness Act of 1996, generally provides

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 that before a rule may take effect, the
 agency promulgating the rule must
 submit a rule report, which includes a
 copy of the rule, to each House of the
 Congress and to the Comptroller General
 of the United States. The EPA will
 submit a report containing this rule and
 other required information to the U.S.
 Senate, the U.S. House of
 Representatives, and the Comptroller
 General of the United States prior to
 publication of the rule in the Federal
 Register. This rule is not a "major rule"
 as defined by 5 U.S.C. § 804(2).

 G. Unfunded Mandates
  Title II of the Unfunded Mandates
 Reform Act of 1995 (UMRA), Pub. L.
 104-4, establishes requirements for
 Federal agencies to assess the effects of
 their regulatory actions on State, local.
 and tribal governments and the private
 sector. Under section 202 of the UMRA,
 the EPA generally must prepare a
 written statement, including a cost-
 benefit analysis, for proposed and final
 rules with "Federal mandates" that may
 result in expenditures to State,  local,
 and tribal governments, in the aggregate,
 or to the private sector,  of $100 million
 or more in any 1 year. Before
 promulgating an EPA rule for which a
 written statement is needed, section 205
 of the UMRA generally requires the EPA
 to identify and consider a reasonable
 number of regulatory alternatives and
 adopt the least costly, most cost-
 effective or least burdensome alternative
 that achieves the objectives of the rule.
 The provisions of section 205 do not
 apply when they are inconsistent with
 applicable law. Moreover, section 205
 allows the EPA to adopt an alternative
 other than the least costly,  most cost-
 effective, or least burdensome
 alternative if the Administrator
 publishes with the final rule an
 explanation why that alternative was
 not adopted. Before the EPA establishes
 any regulatory requirements that may
 significantly or uniquely affect small
 governments, including tribal
 governments, it must have  developed
 under section 203 of the UMRA a small
 government agency plan. The plan must
 provide for notifying potentially
 affected small governments, enabling
 officials of affected small governments
 to have meaningful and timely input in
 the development of EPA regulatory
 proposals with significant Federal
 intergovernmental mandates, and
 informing, educating, and advising
 small governments on compliance with
 the regulatory requirements.
  The EPA has determined that this rule
 does not contain a Federal mandate that
may result in expenditures of $100
million or more for State, local, and
                        tribal governments, in aggregate, or the
                        private s'ector in any 1 year, nor does the
                        rule significantly or uniquely impact
                        small governments, because it contains
                        no requirements that apply to such
                        governments or impose obligations
                        upon them. Thus, the requirements of
                        the UMRA do not apply to this rule.

                        H. Executive Order 12875
                          Under Executive Order 12875, EPA
                        may not issue a regulation that is not
                        required by statute and that creates a
                        mandate upon a State, local or tribal
                        government,  unless the Federal
                        government provides the funds
                        necessary to pay the direct compliance
                        costs incurred by those governments or
                        EPA consults with those governments. If
                        EPA complies by consulting, Executive
                        Order  12875  requires EPA to provide to
                        the Office of Management and Budget a
                        description of the extent of EPA's prior
                        consultation with representatives of
                        affected State, local and tribal
                        governments, the nature of their
                        concerns, copies of any written
                        communications from the governments,
                        and a statement supporting the need to
                        issue the regulation. In addition,
                        Executive Order 12875 requires EPA to
                        develop an effective process permitting
                        elected officials and other
                        representatives of State, local and tribal
                        governments "to provide meaningful
                        and timely input in the development of
                        regulatory proposals containing
                        significant unfunded mandates."
                          Today's rule implements
                        requirements specifically set forth by
                        the Congress  in section 112 of the CAA
                        without the exercise of any discretion
                        by the EPA. Accordingly, the
                        requirements of section 1 (a) of
                        Executive Order 12875 do not apply to
                        this rule.
                        /. Executive Order 13084
                          Under Executive Order 13084, EPA
                        may not issue a regulation that is not
                        required by statute, that significantly or
                        uniquely affects the communities of
                        Indian tribal governments, and that
                        Imposes substantial direct compliance
                        costs on those communities, unless the
                        Federal government provides the funds
                        necessary to pay the direct compliance
                        costs incurred by the tribal
                        governments, or EPA consults those
                        governments. If EPA complies by
                        consulting, Executive Order 13084
                        requires EPA to provide to the Office of
                        Management and Budget, in a separately
                        identified section of the preamble to the
                        rule, a  description of the extent of EPA's
                        prior consultation with representatives
                        of affected tribal governments, a
                        summary of the nature of their concerns,
                        and a statement supporting the need to
issue the regulation. In addition,
Executive Order 13084 requires EPA to
develop an effective process permitting
elected officials and other
representatives of Indian tribal
governments "to provide meaningful
and timely input in the development of
regulatory policies on matters that
significantly or uniquely affect their
communities."
  Today's rule does not significantly or
uniquely affect the communities of
Indian tribal governments. The rule
does not affect these entities because
they do no own or operate sources
subject to this  rule and therefore are not
required to purchase control systems to
meet the requirements of this rule.
Accordingly, the requirements of
section 3(b) of Executive Order 13084
do not apply to this rule.
J. National Technology Transfer and
Advancement Act
  Section 12(d) of the National
Technology Transfer and Advancement
Act (NTTAA),  Pub. L. 104-113 (March
7, 1996), directs all Federal agencies to
use voluntary consensus standards in
regulatory and procurement activities
unless to do so would be inconsistent
with applicable law or otherwise
impracticable. Voluntary consensus
standards are technical'standards (e.g.,
materials specifications, test methods,
sampling procedures, and business
practices) developed or adopted by one
or more voluntary consensus bodies.
The NTTAA requires Federal agencies
to provide Congress, through annual
reports to OMB, with explanations
when an agency does not use available
and applicable voluntary consensus
standards. This section summarizes the
EPA's response to the requirements of
the NTTAA for the analytical and test
methods to be  required by this final
rule.
  Consistent with the NTTAA. the EPA
conducted a search to identify voluntary
consensus standards. The search
identified 15 voluntary consensus
standards that  appeared to have possibk
use in lieu of EPA standard reference •
methods in this rule. However, after
reviewing available standards, EPA
determined that eight of the candidate
consensus standards identified for
measuring emissions of the HAP or
surrogates subject to emission standards
in the rule would not be practical due
to lack of equivalency, documentation,
validation data or other important
technical and policy considerations.
Seven of the remaining candidate
consensus standards are new standards
under development that EPA plans to
follow, review  and consider adopting at
a later date.

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                                                                     29439
  One consensus standard, ASTM
Z7420Z, is potentially practical for EPA
use in lieu of EPA Method 18 (See 40
CFR part 60, appendix A). At the time
of EPA's search, the ASTM standard
was still under development and EPA
had provided comments on the method.
The EPA also compared a draft of this
ASTM standard to methods previously
approved as alternatives to EPA Method
18 with specific applicability
limitations. These methods, designated
as ALT-017 and CTM-028, are available
through EPA's Emission Measurement
Center Internet site at www.epa.gov/ttn/
emc/tmethods.html. The proposed
ASTM Z7420Z standard is very similar
to these approved alternative methods.
When finalized and adopted by ASTM,
the standard may be equally suitable for
specific applications. However, today's
rule does not adopt the ASTM standard
at this time as it is not practical to do
so until the potential candidate is final
and EPA has reviewed the final
standard. The EPA plans to continue to
follow the progress of the standard and
will consider adopting the ASTM
standard at a later date.
  This rule requires standard EPA
methods known to the industry and
States. Approved alternative methods
also may be used with prior EPA
approval.

List of Subjects in 40 CFR Part 63
  Environmental protection, Air
pollution control, Hazardous
substances, Reporting and
recordkeeping requirements.
  Dated: May 12, 1999.
Carol M. Browner,
Administrator.
  For the reasons set out in the
preamble, part 63 of title 40, chapter I
of the Code of Federal Regulations is
amended as follows:

PART 63— NATIONAL EMISSION
STANDARDS FOR HAZARDOUS AIR
POLLUTANTS FOR AFFECTED
SOURCE CATEGORIES

   1. The authority citation for part 63
continues to read as follows:
  Authority: 42 U.S.C. 7401, et. seq.
   2. Part 63 is amended by adding
subpart PPP to read as follows:
Subpart PPP—National Emission Standards
for Hazardous Air Pollutant Emissions for
Polyether Polyols Production
Sec.
63.1420 Applicability and designation of
    affected sources.
63.1421  Delegation of authority.
63.1422 Compliance dates and relationship
    of this rule to existing applicable rules.
63.1423 Definitions.
63.1424  Emission standards.
63.1425  Process vent control requirements.
63.1426  Process vent requirements for
   determining organic HAP concentration,
   control efficiency, and aggregated
   organic HAP emission reduction for a
   PMPU.
63.1427  Process vent requirements for
   processes using extended cookout as an
   epoxide emission reduction technique.
63.1428  Process vent requirements for
   group determination of PMPUs using a
   nonepoxide organic HAP to make or
   modify the product.
63.1429  Process vent monitoring
   requirements.
63.1430  Process vent reporting and
   recordkeeping requirements.
63.1431  Process vent annual epoxides
   emission factor plan requirements.
63.1432  Storage vessel provisions.
63.1433  Wastewater provisions.
63.1434  Equipment leak provisions.
63.1435  Heat exchanger provisions.
63.1436  [Reserved]
63.1437  Additional requirements for
   performance testing.
63.1438  Parameter monitoring levels and
   excursions.
63.1439  General recordkeeping and
   reporting provisions.
Table 1 to Subpart PPP of Part 63—
   APPLICABILITY OF GENERAL
   PROVISIONS TO SUBPART PPP
   AFFECTED SOURCES
Table 2 to Subpart PPP of Part 63—
   APPLICABILITY OF SUBPARTS F, G, H,
   AND U TO SUBPART PPP AFFECTED
   SOURCES
Table 3 to Subpart PPP of Part 63—GROUP
   1 STORAGE VESSELS AT EXISTING
   AND NEW AFFECTED SOURCES
Table 4 to Subpart PPP of Part 63—KNOWN
   ORGANIC HAP FROM POLYETHER
   POLYOL PRODUCTS
Table 5 to Subpart PPP of Part 63—PROCESS
   VENTS FROM BATCH UNIT
   OPERATIONS—MONITORING,
   RECORDKEEPING, AND REPORTING
   REQUIREMENTS
Table 6 to Subpart PPP of Part 63—PROCESS
   VENTS FROM CONTINUOUS UNIT
   OPERATIONS—MONITORING,
   RECORDKEEPING, AND REPORTING
   REQUIREMENTS
Table 7 to Subpart PPP of Part 63—
   OPERATING PARAMETERS FOR
   WHICH MONITORING LEVELS ARE
   REQUIRED TO BE ESTABLISHED FOR
   PROCESS VENTS STREAMS
Table 8 to Subpart PPP of Part 63—ROUTINE
   REPORTS REQUIRED BY THIS
   SUBPART

Subpart PPP—National Emission
Standards for Hazardous Air Pollutant
Emissions for Polyether  Polyols
Production

§ 63.1420  Applicability and designation of
affected sources.

  (a) Definition of affected source. The
provisions of this subpart apply to each
affected source. Affected  sources are
described in paragraphs (a)(l) through
(4) of this section.
  (1) An affected source is either an
existing affected source or a new
affected source. Existing affected source
is defined In paragraph (a) (2) of this
section, and new affected source is
defined In paragraph (a) (3) of this
section.
  (2) An existing affected source is
defined as the group of one or more
polyether polyol manufacturing process
units (PMPUs) and associated
equipment, as listed in paragraph (a) (4)
of this section, that is not part of a new
affected source, as defined in paragraph
(a) (3) of this section, and that Is located
at a plant site that is a major source.
  (3) A new affected source is defined
as a source that meets the criteria of
paragraph (a)(3)(i), (ii), or (iii) of this
section. The situation described in
paragraph (a)(3)(i) of this section is
distinct from those situations described
in paragraphs (a)(3)(ii) and (iii) of this
section.
  (i) At a site without organic HAP
emission points before September 4,
1997 (i.e., a "greenfleld" site), the group
of one or more PMPUs and associated
equipment, as listed in paragraph (a) (4)
of this section, that is part of a major
source, and on which construction for
the PMPU(s) commenced after
September 4, 1997;
  (ii) The group of one or more PMPUs
meeting the criteria in paragraph
(g)(l)(i) of this section; or
  (iii) A reconstructed affected source
meeting the criteria in paragraph
(g) (2) (i) of this section.
  (4) The affected source also includes
the emission points and equipment
specified in paragraphs (a)(4)(i) through
(vi) of this section that are associated
with a PMPU (or a group of PMPUs)
making up an affected source, as
defined in §63.1423.
  (i) Each waste management unit.
  (ii) Maintenance wastewater.
  (Ill) Each heat exchange system.
  (iv) Equipment required by or utilized
as a method of compliance with this
subpart which may include control
techniques and recovery devices.
  (v) Product finishing operation.
  (vi) Each feed or catalyst operation.
  (b) PMPUs without organic HAP. The
owner or operator of a PMPU that is part
of an affected source, as defined in
paragraph (a) of this section, but that
does not use or manufacture any organic
HAP during the production of one or
more products is only subject to the
provisions of this subpart as specified in
paragraph (b)(l) or (2) of this section, as
applicable. Products or raw material(s)
containing organic HAP as impurities

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 only are not considered organic HAP for
 the purposes of this paragraph.
   (1) If an organic HAP is not used or
 manufactured in the production of
 polyether polyols, the PMPU is not
 subject to any provisions of this subpart,
 except that the owner or operator shall
 comply with either paragraph  (b)(l)(i) or
 (ii) of this section. The owner or
 operator is not required to comply with
 the provisions of 40 CFR part 63,
 subpart A (the General Provisions) for
 that PMPU.
   (i) Retain information, data,  and
 analyses used to document the basis for
 the determination that the PMPU does
 not use or manufacture any organic
 HAP. Types of information that could
 document this determination include,
 but are not limited to, records of
 chemicals purchased for the process,
 analyses of process stream composition,
 engineering calculations, or process
 knowledge.
   (ii) When requested by the
 Administrator, demonstrate that the
 PMPU does not use or manufacture any
 organic HAP.
   (2) If an organic  HAP is used or
 manufactured in the production of
 polyether polyols,  but an organic HAP
 is not used in the production of one or
 more products that are not polyether
 polyols, the PMPU is not subject to any
 provision of this subpart other than
 paragraph (b)(l)(i)  or (ii) of this section
 during the production of the non-
 polyether polyol products that do not
 use or manufacture any organic HAP.
   (c) Emission points included in the
 affected source but not subject to the
 provisions of this subpart. The affected
 source includes the emission points
 listed in paragraphs (c)(l) through (12)
 of this section, but these emission
 points are not subject to the
 requirements of this subpart or the
 provisions of 40 CFR part 63, subpart A.
   (1) Equipment that does not contain
 organic HAP or that contains organic
 HAP as impurities only and is located
 at a PMPU that is part of an affected
 source.
   (2) Stormwater managed in segregated
 sewers.
   (3) Water from fire-fighting and
 deluge systems in segregated sewers.
   (4) Spills.
   (5) Water from safety showers.
   (6) Water from tsstlng of deluge
 systems.
   (7) Water from testing of firefighting
systems.
   (8) Vessels that store and/or handle
material that contains no organic HAP
or organic HAP as impurities only.
   (9) Equipment that operates in organic
HAP service for less than 300 hours
during the calendar year.
                          (10) Loading racks, loading arms, or
                        loading hoses that only transfer liquids
                        containing HAP as impurities.
                          (11) Loading racks, loading arms, or
                        loading hoses that vapor balance during
                        all loading operations.
                          (12) Utility fluids, such as heat
                        transfer fluids.
                          (d) Processes exempted from the
                        affected source. The processes specified
                        in paragraphs (d)(l) through (3) of this
                        section are not part of the affected
                        source and are exempted from the
                        requirements of both this subpart and
                        subpart A of this part.
                          (1) Research and development
                        facilities.
                          (2) Solvent reclamation, recovery, or
                        recycling operations at hazardous waste
                        treatment, storage, and disposal
                        facilities (TSDF) requiring a permit
                        under 40 CFR part 270 that are not part
                        of a PMPU to which this subpart
                        applies.
                          (3) Reactions or processing that occur
                        after the epoxide polymerization is
                        complete and after all catalyst removal
                        steps, if any, are complete.
                          (e) Primary product determination
                        and applicability. An owner or operator
                        of a process unit that produces or plans
                        to produce a polyether polyol shall
                        determine if the process unit is subject
                        to this subpart  in accordance with this
                        paragraph.
                          (1) Initial primary product
                        determination. The owner or operator
                        shall initially determine the primary
                        product of each process unit in
                        accordance with paragraphs (e)(l)(i)
                        through (iii) of this section.
                          (i) If a process unit manufactures  only
                        one product, then that product shall
                        represent the primary product of the
                        process unit.
                          (ii) If a process unit produces more
                        than one intended product at the same
                        time, the primary product shall be
                        determined in accordance with
                        paragraph (e) (1) (ii) (A) or (B) of this
                        section.
                          (A) The product for which the process
                        unit has the greatest annual design
                        capacity on a mass basis shall represent
                        the primary product of the process unit,
                        or
                          (B) If a process unit has the same
                        maximum annual design capacity on a
                        mass basis for two or more products and
                        if one of those products is a polyether
                        polyol, then the polyether polyol shall
                        represent the primary product of the
                        process unit.
                          (iii) If a process unit is designed and
                        operated as a flexible operation unit, the
                        primary product shall be determined as
                        specified in paragraph (e)(l)(iii)(A) or
                        (B) of this section based on the
                        anticipated operations for the 5 years
 following September 4, 1997 for existing
 process units, or for the first year after
 the process unit begins production of
 any product for the new process units.
 If operations cannot be anticipated
 sufficiently to allow the determination
 of the primary product for the specified
 period, applicability shall be
 determined in accordance with
 paragraph (e) (2) of this section.
  (A) If the flexible operation unit will
 manufacture one product for the greatest
 operating time over the specified 5-year
 period for existing process units, or the
 specified 1-year period for new process
 units, then that product shall represent
 the primary product of the flexible
 operation unit.
  (B) If the flexible operation unit will
 manufacture multiple products equally
 based on operating time, then the
 product with the greatest expected
 production on a mass basis over the
 specified 5-year period for existing
 process units, or the specified 1-year
 period for new process units shall
 represent the primary product of the
 flexible operation unit.
  (iv) If, according to paragraph (e)(l)(i),
 (ii), or (iii) of this section, the primary
 product of a process unit is a polyether
 polyol, then that process unit shall be
 designated as a PMPU. If the plant site
 is a major source, that PMPU and
 associated equipment, as listed in
 paragraph (a) (4) of this section, is either'
 an affected source or part of an affected
 source comprised of one or more other
 PMPUs and associated equipment, as
 listed in paragraph (a) (4) of this section.
 and subject to this subpart. If the
 primary product of a process unit is not
 a polyether polyol, then that process
 unit is not a PMPU.
  (2) Provisions if primary product
 cannot be determined. If the primary
 product cannot be determined for a
 flexible operation unit in accordance
 with paragraph (e)(l)(iii) of this section,
 applicability shall be determined in
 accordance with this paragraph.
  (i) If the owner or operator can
 determine that a polyether polyol is not
 the primary product, then that flexible
 operation unit is not a PMPU.
  (ii) If the owner or operator cannot
 determine that a polyether polyol is not
 the primary product as specified in
paragraph (e)(2)(i) of this section,
applicability shall be determined in
accordance with paragraph (e)(2)(ii)(A)
or (B) of this section.
  (A) If the flexible operation unit is an
existing process unit, the flexible
operation unit shall be designated as a
PMPU if a polyether polyol was
produced for 5 percent or greater of the
total operating time of the flexible
operation unit since September 4,1997.

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                                                                     29441
  (B) If the flexible operation unit is a
new process unit, the flexible operation
unit shall be designated as a PMPU if
the owner or operator anticipates that a
polyether polyol will be manufactured
in the flexible operation unit at any time
in the first year after the date the unit
begins production of any product.
  (3) Annual applicability
determination for non-PMPUs that have
produced a polyether polyol. Once per
year beginning June 1, 2004 the owner
or operator of each flexible operation
unit that is not designated as a PMPU,
but that has produced a polyether
polyol at any time in the preceding 5-
year period or since the date that the
unit began production of any product,
whichever is shorter, shall perform the
evaluation described in paragraphs
(e)(3)(i) through (Hi) of this section.
  (i) For each product produced in the
flexible operation unit, the owner or
operator shall calculate the percentage
of total operating time over which  the
product was produced during the
preceding 5-year period.
  (ii) The  owner or operator shall
identify the primary product as the
product with the highest percentage of
total operating time for the preceding 5-
year period.
  (iii) If the primary product identified
in paragraph (e)(3)(ii) is a polyether
polyol, the flexible operation unit shall
be designated as a PMPU. The owner or
operator shall  notify the Administrator
no later than 45 days after determining
that the flexible operation unit is a
PMPU, and shall comply with the
requirements of this subpart in
accordance with paragraph (g) (1) of this
section for the flexible operation unit.
   (4) Applicability determination for
non-PMPUs that have not produced a
polyether polyol. The owner or operator
that anticipates the production of a
polyether polyol in a process unit  that
is not designated as a PMPU, and in
which no polyether polyol products
have been produced in the previous 5-
year period or since the date that the
process unit began production of any
product, whichever is shorter, shall use
the procedures in paragraph (e)(l) or (2)
of this section to determine if the
process unit is designated as a PMPU,
with the exception that for existing
process units, owners or operators shall
project production for the 5 years
following the date that the owner or
operator anticipates initiating the
production of a polyether polyol,
instead of the 5 years following
September 4, 1997. If the unit is
 designated as a PMPU, the owner or
operator shall comply in accordance
with paragraph (g)(l) of this  section.
  (5) Applicability of requirements for
PMPUs that are flexible operation units.
The owner or operator of PMPUs that
are flexible operation units shall comply
with the provisions of this subpart in
accordance with paragraphs (e)(5)(i)
through (iii) of this section.
  (i) Control requirements. The owner
or operator shall comply with the
control requirements of this subpart in
accordance with paragraphs (e)(5)(i)(A)
and (B) of this section. '
  (A) During periods when the PMPU
produces polyether polyols, the owner
or operator shall comply with the
provisions of this subpart.
  (B) During periods when the PMPU
produces products other than polyether
polyols, the owner or operator is not
required to install additional
combustion, recovery, or recapture
devices (to otherwise demonstrate
compliance).  However, the owner or
operator shall continue to operate any
existing combustion, recovery, or
recapture  devices that are required for
compliance during the production of
polyether polyols, with the exceptions
provided in paragraph (e)(5)(iv) of this
section. If extended  cookout (ECO) is
the control technique chosen for
epoxide emission reduction, then ECO
or a control technique providing an
equivalent reduction in epoxide
emissions should continue to be used
for epoxide emission reduction, if the
non-polyether polyol being produced
uses epoxide monomers.
   (ii) Monitoring requirements. The
owner or operator shall comply with the
monitoring requirements of this subpart
in accordance with paragraphs
(e)(5)(ii)(A) and (B) of this section, and
paragraph (e)(5)(ii)(C)  of this section if
applicable.
   (A) The owner or  operator shall
establish a single parameter monitoring
level (for each parameter required to be
monitored at each device subject to
monitoring requirements) in accordance
with §63.1438(a) based on emission
point and control technique
characteristics when polyether polyol is
being produced.
   (B)The owner or operator shall
monitor each parameter at each device
subject to monitoring requirements at all
times (during periods when the PMPU
produces polyether polyols, and during
periods when the PMPU produces
products other than polyether polyols),
with the exceptions provided in
paragraph (e)(5)(iv)  of this section.
   (C) If ECO is used to reduce epoxide
emissions, a parameter monitoring level
shall be established for the production
of non-polyether polyol products as the
average of the established parameter
levels for all  product classes produced.
During periods when products other
than polyether polyols are produced,
the ECO shall be performed so that the
parameter monitoring level established
for the production of non-polyether
polyol products is maintained when the
ECO is used as a control technique.
  (iii) Group determinations. For
emission points where the owner or
operator is required to determine if the
emission point is Group 1 according the
definitions in §63.1423 (storage vessels,
process vents for nonepoxide organic
HAP emissions used to make or modify
the product, and wastewater), the owner
or operator shall determine the group
status based on emission point
characteristics when polyether polyol is
being manufactured. Group 1 emission
points shall be controlled in accordance
with paragraph (e)(5)(i) of this section.
  (iv) Exceptions. During periods when
products described in paragraphs
(e) (5) (iv) (A) and (B) of this section are
produced, the owner or operator is not
required  to comply with the provisions
of this subpart.
   (A) Products in which no organic
HAP is used or manufactured, provided
that the owner or operator comply with
paragraph (b)(2)  of this section.
   (B) Products that make the PMPU
subject to 40 CFR part 63, subpart GGG
(Pharmaceuticals Production NESHAP).
   (6) [Reserved]
   (7) [Reserved]
   (8) Requirements for process units
that are not PMPUs. If it is determined
that a process unit is not subject to this
subpart, the owner or operator shall
either retain all information, data, and
analysis  used to document the basis for
the determination that the process unit
is not a PMPU, or, when requested by
the Administrator, demonstrate that the
process unit is not a PMPU.
   (9) PMPUs terminating production of
polyether polyols products. If a PMPU
terminates the production of polyether
polyol and does not anticipate the
production of a polyether polyol in the
future, the process unit is no longer a
PMPU and is not subject to this subpart
after notification is made to the
Administrator. This notification shall be
accompanied by a rationale for why it
is anticipated that no polyether polyol
will be produced in the process unit in
the future.
   (10) Redetermination of applicability
to PMPUs that are flexible operation
units. Whenever changes in production
occur that could reasonably be expected
to change the primary product of a
PMPU that is operating as a flexible
operation unit from a polyether polyol
to a product that would make the
process unit subject to another subpart
of this part, the owner or operator shall

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 reevaluate the primary product, in
 accordance with paragraphs (e) (3) (i) and
 (ii) of this section. If the conditions in
 paragraphs (e)(10)(i) through (iii) of this
 section are met, the flexible operation
 unit shall no longer be designated as a
 PMPU after the compliance date of the
 other subpart, and shall no longer be
 subject to the provisions of this subpart
 after the date that the process unit Is
 required to be in compliance with the
' provisions of the other subpart. If the
 conditions In paragraphs (e)(10)(i)
 through (iii) of this section are not met,
 the flexible operation unit shall
 continue to be considered a PMPU and
 subject to the requirements of this
 subpart.
   (i) The product identified as the
 primary product is not polyether polyol;
   (ii) The production or the product
 identified as the primary product is
 subject to another subpart of this part;
 and
   (iii) The owner or operator submits a
 notification to the Administrator of the
 pending change in applicability.
   (f) Storage vessel ownership
 determination. The owner or operator
 shall follow the procedures specified in
 paragraphs (f)(l) through (7) of this
 section to determine to which process
 unit a storage vessel shall be assigned.
   (1) If a storage vessel is already
 subject to another subpart of 40 CFR
 part 63 (National Emission Standards
 for Hazardous Air Pollutants for Source
 Categories) on June 1, 1999,  that storage
 vessel shall be assigned to the process
 unit subject to the other subpart, and
 none of the other provisions in this
 subpart shall apply to that storage
 vessel.
   (2) If a storage vessel is dedicated to
 a single process unit, the storage vessel
 shall be assigned to that process unit.
   (3) If a storage vessel is shared among
 process units, then the storage vessel
 shall be assigned to that process unit
 located on the same plant site as the
 storage vessel that has the greatest input
 into or output from the storage vessel
 (i.e., the process unit that has the
predominant use of the storage vessel.)
   (4) If predominant use cannot be
determined for a storage vessel that  is
shared among process units and if only
one of those process units is a PMPU
subject to this subpart, the storage vessel
shall be assigned  to that PMPU.
   (5) If predominant use cannot be
determined for a storage vessel that  is
shared among process units and if more
than one of the process units are PMPUs
that have different primary products
and that are subject to this subpart, then
the owner or operator shall assign the
storage vessel to any one of the PMPUs
sharing the storage vessel.
                          (6) If the predominant use of a storage
                        vessel varies from year to year, then
                        predominant use shall be determined
                        based on the utilization that occurred
                        during the year preceding June 1,1999
                        or based on the expected utilization for
                        the 5 years following June 1,1999 for
                        existing affected sources, whichever is
                        more representative of the expected
                        operations for that storage vessel, and
                        based on the expected utilization for the
                        5 years after initial start-up for new
                        affected sources. The determination of
                        predominant use shall be reported in
                        the Notification of Compliance Status,
                        as required by §63.1439(e)(5)(v).
                          (7) Where a storage vessel is located
                        at a major source that includes one or
                        more process units which place material
                        into or receive material from the storage
                        vessel, but the storage vessel is located
                        in a tank farm (including a marine tank
                        farm), the applicability of this subpart
                        shall be determined according to the
                        provisions in paragraphs (f)(7)(i)
                        through (iv) of this section.
                          (i) The storage vessel may only be
                        assigned to a process unit that utilizes
                        the  storage vessel and does not have an
                        intervening storage vessel for that
                        product (or raw materials, as
                        appropriate). With respect to any
                        process unit, an intervening storage
                        vessel means a storage vessel connected
                        by hard-piping to both the process unit
                        and the storage vessel in the tank farm
                        so that product or raw material entering
                        or leaving the process unit flows into (or
                        from) the intervening storage vessel and
                        does not flow directly into (or from) the
                        storage vessel in the tank farm.
                          (ii) If there is no process unit at the
                        major source that meets the criteria of
                        paragraph (fj(7)(i) of this section with
                        respect to a storage vessel, this subpart
                        does not apply to the storage vessel.
                          (iii) If there is only one process unit
                        at the major source that meets the
                        criteria of paragraph (f)(7)(i) of this
                        section with respect to a storage vessel,
                        the storage vessel shall be assigned to
                        that process unit.
                          (iv) If there are two or more process
                        units at the major source that meet the
                        criteria of paragraph (f)(7)(i) of this
                        section with respect to a storage vessel,
                        the storage vessel shall be assigned to
                        one of those process units according to
                        the provisions of paragraphs (f)(3)
                        through (6) of this section. The
                        predominant use shall be determined
                        among only those process units that
                        meet the criteria of paragraph (f)(7)(i) of
                        this section.
                          (8) If the storage vessel begins
                        receiving material from (or sending
                        material to) a process unit that was not
                        included in the initial determination, or
                        ceases to receive material from (or send
 material to) a process unit that was
 included in the initial determination,
 the owner or operator shall reevaluate
 the applicability of this subpart to that
 storage vessel.
   (g) Changes or additions to plant sites.
 The provisions of this paragraph apply
 to the owner or operator that changes or
 adds tc their plant site or affected
 source.
   (1) Adding a PMPU to a plant site.
 The provisions of paragraphs (g)(l)(i)
 and (ii) of this section apply to the
 owner or operator that adds one or more
 PMPUs to a plant site. A PMPU may be
 added to a plant site by constructing or
 reconstructing  a process unit to produce
 polyether polyols. A PMPU may also be
 added to a plant site due to changes in
 production (anticipated production or
 actual past production) such that a
 polyether polyol becomes the primary
 product of a process unit that was not
 previously a PMPU.
   (i) If a group  of one or more PMPUs
 is added to a plant site, the added group
 of one or more  PMPUs and their
 associated equipment, as listed in
 paragraph (a)(4) of this section, shall be
 a new affected source and shall comply
 with the requirements for a new affected
 source in this subpart upon initial start-
 up or by June 1, 1999, whichever is
 later, if the criteria specified in
 paragraph (g)(l)(i)(A) is met and either
 the criteria in paragraph (g)(l)(i)(B) or
 (C) of this section are met.
   (A) The process units are new process
 units, as defined in §63.1423.
   (B) The added group of one or more
 PMPUs and associated equipment, as
 listed in paragraph (a) (4) of this section,
 has the potential to  emit 10 tons per
 year (9.1 megagrams per year) or more
 of any organic HAP or 25 tons per year
 (22.7 megagrams per year) or more of
 any combination of organic HAP, and
 polyether polyols are currently
 produced at the plant site as the primary
 product of an affected source.
  (C) A polyether polyol is not currently
 produced at the plant site as the primary
 product of an affected source, and the
 plant site meets, or after the addition Is
 constructed will meet, the General
 Provisions' definition of a major source
 in §63.2.
  (ii) If a group of one or more PMPUs
 is added to a  plant site, and the added
 group of one  or more PMPUs does not
 meet the criteria specified in paragraph
 (g) (1) (i) (A) of this section and one of the
 criteria specified in either paragraph
 (g)(l)(i)(B) or (C) of this section, and the
plant site meets, or after the addition
will meet, the definition of a major
source, the owner or operator of the
added group of one or more PMPUs and
associated equipment, as listed in

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                                                                    29443
paragraph (a) (4) of this section, shall
comply with the requirements for an
existing affected source in this subpart
upon initial start-up; by June 1, 2002; or
by 6 months after notifying the
Administrator that a process unit has
been designated as a PMPU (in
accordance with paragraph (g)(3) of this
section), whichever is later.
  (2) Adding emission points or making
process changes to existing affected
sources. The provisions of paragraphs
(g) (2) (i) and (ii)  of this section apply to
the owner or operator that adds
emission points or makes process
changes to an existing affected source.
  (i) If any process change or addition
is made to an existing affected source
that meets the criteria specified in
paragraphs (g)(2)(i)(A) and (B) of this
section, the entire affected source shall
be a new affected source and shall
comply with the requirements for a new
affected source  in this subpart upon
initial start-up or by June 1,1999.
  (A) It is a process change or addition
that meets the definition of
reconstruction in §63.1423(b). For
purposes of determining whether the
fixed capital cost of the new
components exceeds  50 percent of the
fixed capital cost that would be required
to construct an  entire affected source,
the equivalent capital cost shall be the
entire potentially affected source; and
  (B) Such reconstruction commenced
after September 4. 1997.
  (ii) If any process change is made or
emission point  is added to an existing
affected source, and the process change
or addition does not meet the criteria
specified in paragraph (g)(2)(i)(A) of this
section, the resulting emission point(s)
shall be subject to the requirements for
an existing affected source in this
subpart. The resulting emission point(s)
shall be in compliance upon initial
start-up or by the appropriate
compliance date specified in §63.1422
(i.e., December 1, 1999 for most
equipment leak components, and June
1, 2002 for emission points other than
equipment leaks).
   (3) Determining what are and are not
process changes. For purposes of
paragraph (g) of this section, examples
of process changes include, but are not
limited to, additions  in process
equipment resulting in changes in
production capacity; production of a
product outside the scope of the
compliance demonstration; or whenever
there is a replacement, removal, or
addition of recovery equipment. For
purposes of paragraph (g) of this section,
process changes do not include: Process
upsets, unintentional temporary process
changes, and changes that are within the
equipment configuration and operating
conditions documented in the
Notification of Compliance Status report
required by § 63.1439(e)(5).
  (4) Reporting requirements for owners
or operators that change or add to their
plant site or affected source. An owner
or operator that changes or adds to their
plant site or affected source, as
discussed in paragraphs (g)(l) and (2) of
this section, shall submit a report as
specified in § 63.1439{e)(7){ii).
  (h) Applicability of this subpart
during periods of start-up, shutdown,
malfunction, or non-operation.
Paragraphs (h)(l) through (4) of this
section shall be followed during periods
of start-up, shutdown, malfunction, and
non-operation of the affected source or
any part thereof.
  (1) The emission limitations set forth
in this subpart and the emission
limitations referred to in this subpart
shall apply at all times except during
periods of non-operation of the affected
source (or specific portion thereof)
resulting in cessation of the emissions to
which this subpart applies. These
emission limitations shall not apply
during periods of start-up, shutdown, or
malfunction, during which the owner or
operator shall follow the applicable
provisions of the start-up, shutdown,
and malfunction plan required by
§ 63.6(e)(3). However, if a start-up,
shutdown, malfunction, or period of
non-operation of one portion of an
affected source does not affect the
ability of a particular emission point to
comply with the emission limitations to
which it is subject, then that emission
point shall still be required to comply
with the applicable emission limitations
of this subpart during the start-up,
shutdown, malfunction, or period of
non-operation. For example, if there is
an overpressure in the reactor area, a
storage vessel that is part of the affected
source would still be required to be
controlled in accordance with the
storage tank provisions in § 63.1432.
Similarly, the degassing of a storage
vessel would not affect the ability of a
process vent to meet the emission
limitations for process vents in
§§63.1425 through 63.1430.
  (2) The emission limitations set forth
in 40 CFR part 63, subpart H, as referred
to in the equipment leak provisions in
§ 63.1434, shall apply at all times except
during periods of non-operation of the
affected source (or specific portion
thereof) in which the lines are drained
and depressurized resulting in cessation
of the emissions to which § 63.1434
applies, or during periods of start-up,
shutdown, malfunction, or process unit
shutdown (as defined in § 63.161).
   (3) The owner or operator shall not
shut down items of equipment that are
required or utilized for compliance with
this subpart during periods of start-up,
shutdown, or malfunction during times
when emissions (or, where applicable,
wastewater streams or residuals) are
being routed to such items of equipment
if the shutdown would contravene
requirements applicable to such items of
equipment This paragraph does not
apply if the item of equipment is  '
malfunctioning. This paragraph also
does not apply if the owner or operator
shuts down the compliance equipment
(other than monitoring systems) to avoid
damage due to a contemporaneous start-
up, shutdown, or malfunction of the
affected source or portion thereof. If the
owner or operator has reason to believe
that monitoring equipment would be
damaged due to a contemporaneous
start-up, shutdown, or malfunction of
the affected source or portion thereof,
the owner or operator shall provide
documentation supporting such a claim
in the Precompliance Report or in a
supplement to the Precompliance
Report, as provided for in
§63.1439(e)(4). Once approved by the
Administrator in accordance with
§63.1439(e)(4)(vii), the provision for
ceasing to collect, during a start-up,
shutdown, or malfunction, monitoring
data that would otherwise be required
by the provisions of this subpart shall be
incorporated into the start-up,
shutdown, malfunction plan for that
affected source, as stated in
§63.1439(b)(l).
   (4) During start-ups, shutdowns, and
malfunctions when the emission
limitations of this subpart do not apply
pursuant to paragraphs (h)(l) through
(3) of this section, the owner or operator
shall implement, to the extent
reasonably available, measures to
prevent or minimize excess emissions to
the extent practical. For purposes of this
paragraph, the term "excess emissions"
means emissions in excess of those that
would have occurred if there were no
start-up, shutdown, or malfunction and
the owner or operator complied with the
relevant provisions of this subpart. The
measures to be taken shall be identified
in the applicable start-up, shutdown,
and malfunction plan, and may include,
but are not limited to, air pollution
control technologies, recovery
technologies, work practices, pollution
prevention, monitoring, and/or changes
in the manner of operation of the
affected source. Use of back-up control
techniques is not required, but is
allowed, if available.

% 63.1421  Delegation of authority.
   (a) In delegating implementation and
enforcement authority to a State under
section 112(1) of the Act, the authorities

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contained in paragraph (b) of this
section shall be retained by the
Administrator and not transferred to a
State.
  (b) Authorities which will not be
delegated to the States: the permission
to use an alternative means of emission
limitation, from §63.6(g), and the
authority of §63.177.

§ 63.1422 Compliance dates and
relationship of this rule to existing
applicable rules.
  (a) [Reserved]
  (b) New affected sources that
commence construction or
reconstruction after September 4, 1997
shall be in compliance with this subpart
upon initial start-up or by June 1, 1999,
whichever is later, as provided in
§63.6(b).
  (c) Existing affected sources shall be
in compliance with this subpart (except
for § 63.1434 for which compliance is
covered by paragraph (d) of this section)
no later than June 1, 2002, as provided
in §63.6(c), unless an extension has
been granted as specified in paragraph
(e) of this section.
  (d) Except as provided for in
paragraphs (d)(l) through (5) of this
section, existing affected sources shall
be in compliance with § 63.1434 no later
than December 1, 1999 unless an
extension has been granted as specified
in paragraph (e) of this section.
  (1) Compliance with the compressor
provisions of § 63.164 shall occur no
later than June 1, 2000 for any
compressor meeting one or more of the
criteria in paragraphs (d)(l)(i) through
(iv) of this section, if the work can be
accomplished without a process unit
shutdown, as defined in §63.161.
  (i) The seal system will be replaced.
  (ii) A  barrier fluid system will be
installed.
  (iii) A new barrier fluid will be
utilized which requires changes to the
existing barrier fluid system.
  (iv) The compressor shall be modified
to permit connecting the compressor to
a closed vent system.
  (2) Compliance with the compressor
provisions of § 63.164 shall occur no
later than December 1, 2000, for any
compressor meeting all the criteria in
paragraphs (d)(2)(i) through (iv) of this
section.
  (i) The compressor meets one or more
of the criteria specified In paragraphs
(d)(l)(i)  through (iv) of this section.
  (ii) The work can be accomplished
without a process unit shutdown as
defined  in §63.161.
  (iii) The additional time Is necessary,
due to the unavailability of parts beyond
the control of the owner or operator.
  (iv) The owner or operator submits
the request for a compliance extension
                        to the appropriate U.S. Environmental
                        Protection Agency Regional Office at the
                        addresses listed in §63.13 no later than
                        45 days before December 1, 1999. The
                        request for a compliance extension shall
                        contain the information specified in
                        § 63.6(i)(6)(i)(A), (B), and (D). Unless the
                        EPA Regional Office objects to the
                        request for a compliance extension
                        within 30 days after receipt of the
                        request, the request shall be deemed
                        approved.
                          (3) If compliance with the compressor
                        provisions of § 63.164 cannot reasonably
                        be achieved without a process unit
                        shutdown, as defined in § 63.161, the
                        owner or operator shall achieve
                        compliance no later than June 1, 2001.
                        The owner or operator who elects to use
                        this provision  shall submit a request for
                        an extension of compliance in
                        accordance with the requirements of
                        paragraph (d)(2)(iv) of this section.
                          (4) Compliance with the compressor
                        provisions of § 63.164 shall occur not
                        later than June 1, 2002 for any
                        compressor meeting one or more of the
                        criteria in paragraphs (d)(4)(i) through
                        (iii) of this section. The owner or
                        operator who elects to use these
                        provisions shall submit a request for an
                        extension of compliance in accordance
                        with the requirements of paragraph
                        (d) (2) (iv) of this section.
                          (i) Compliance cannot be achieved
                        without replacing the compressor.
                          (ii) Compliance cannot be achieved
                        without recasting the distance piece.
                          (iii) Design modifications are required
                        to connect to a closed-vent system.
                          (5) Compliance with the surge control
                        vessel and bottoms receiver provisions
                        of § 63.170 shall occur no later than
                        June 1, 2002.
                          (e) Pursuant to section 112(i)(3)(B) of
                        the Act, an owner or operator may
                        request an extension allowing the
                        existing affected source up to 1
                        additional year to comply with section
                        112(d) standards. For purposes of this
                        subpart, a request for an extension shall
                        be submitted to the permitting authority
                        as part of the operating permit
                        application or  to the Administrator as a
                        separate submittal or as part of the
                        Precompliance Report Requests for
                        extensions shall be submitted no later
                        than 120  days  prior to the compliance
                        dates specified in paragraphs (b)
                        through (d) of this section, except as
                        discussed in paragraph (e)(3) of this
                        section. The dates specified in § 63.6(i)
                        for submittal of requests for extensions
                        shall not  apply to this subpart.
                          (1) A request for an extension of
                        compliance shall include the data
                        described in §  63.6(i)(6)(i)(A), (B), and
                        (D).
  (2) The requirements in § 63.6(i)(8)
through (14) shall govern the review and
approval of requests for extensions of
compliance with this subpart.
  (3) An owner or operator may submit
a compliance extension request after the
date specified in paragraph (e) of this
section, provided that the need for the
compliance extension arose after that
date, and the need arose due to
circumstances beyond reasonable
control of the owner or operator. This
request shall include, in addition to the
information specified in paragraph (e)(l)
of this section, a statement of the
reasons additional time is needed and
the date when the owner or operator
first learned of the problem.
  (i) Table 1 of this subpart specifies the
requirements in 40 CFR part 63, subpart
A (the General Provisions) dial apply
and those that do not apply to owners
and operators of affected sources subject
to this subpart. For the purposes of this
subpart, Table 3 of 40 CFR part 63,
subpart F is not applicable.
  (g) Table 2 of tills subpart summarizes
the provisions of 40 CFR part 63,
subparts F, G, and H (collectively
known as the "HON") that apply and
those diat do not apply to owners and
operators of affected sources subject to
this subpart.
  (h) (1) After the compliance dates
specified in this section, an affected
source subject to this subpart that is also
subject to the provisions of 40 CFR part
63, subpart I, is required to comply only
with the provisions of this subpart.
  (2) Sources subject to the provisions
in 40 CFR part 63, subpart I, that have
elected to comply through a quality
improvement program, as specified in
§63.175 or §63.176 or both, may elect
to continue these programs without
interruption as a means of complying
with this subpart. In other words,
becoming subject to this subpart does
not restart or reset the "compliance
clock" as it relates to reduced burden
earned through a quality improvement
program.
  (i) After the compliance dates
specified in this section, a storage vessel
that is assigned to an affected source
subject to this subpart that is also
subject to the 40 CFR part 60, subpart
Kb  (Standards of Performance for
Volatile Organic Liquid Storage Vessels
(Including Petroleum Liquid  Storage
Vessels) for Which Construction,
Reconstruction, or Modification
Commenced after July 23,1984) is
required to comply only with the
provisions of this subpart After the
compliance dates specified in this
section, that storage vessel shall no
longer be subject to 40 CFR part 60,
subpart Kb.

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                                                                     29445
   (j) After the compliance dates
 specified in this subpart, if any
 combustion device, recovery device or
 recapture device subject to this subpart
 is also subject to monitoring,
 recordkeeping, and reporting
 requirements for hazardous waste,
 disposal, and treatment facilities in 40
 CFR part 264, subpart AA (Air Emission
 Standards for Process Vents) or subpart
• CC (Air Emission Standards for Tanks,
 Surface Impoundment, and Containers),
 the owner or operator may comply with
 either paragraph (j)(l) or (2) of this
 section. If, after the compliance dates
 specified in this subpart, any
 combustion device, recovery device, or
 recapture device subject to this subpart
 is subject to monitoring and
 recordkeeping requirements hazardous
 waste treatment, storage, and disposal
 facilities in 40 CFR part 265, subpart AA
 (Air Emission Standards for Process
 Vents) or subpart CC  (Air Emission
 Standards for Tanks,  Surface
 Impoundments, and Containers), the
 owner or operator may comply with
 either paragraph (j) (1) or (3) of this
 section. If the owner or operator elects
 to  comply with either paragraph (j)(2) or
 (3) of this section, the owner or operator
 shall notify the Administrator of this
 choice in the Notification of Compliance
 Status required by §63.1439(e)(5).
   (1) The owner or operator shall
 comply with the monitoring,
 recordkeeping and reporting
 requirements of this subpart.
   (2) The owner or operator shall
 comply with the monitoring,
 recordkeeping and reporting
 requirements in 40 CFR part 264, with
 the following exception. All excursions,
 as defined in §63.1438(f), shall be
 reported in the periodic report.
 Compliance  with this paragraph shall
 constitute compliance with the
 monitoring, recordkeeping and
 reporting requirements of this subpart.
    (3) The owner or operator shall
 comply with the monitoring and
 recordkeeping requirements of 40 CFR
 part 265, subpart AA or subpart CC, and
 the periodic reporting requirements
 under 40 CFR part 264, subpart AA or
 subpart CC, that would apply to the
 device if the facility had final-permitted
 status, with the following exception. All
 excursions, as defined in § 63.1438(1),
 shall be reported in the periodic report.
 Compliance with  this paragraph shall
 constitute compliance with the
 monitoring,  recordkeeping and
 reporting requirements of this subpart.
    (k) Paragraphs (k)(l) and (2) of this
 section address instances in which
 requirements from other regulations
 overlap for the same  heat exchange
system (s) or waste management unit(s)
that are subject to this subpart.
  (1) After the applicable compliance
date specified in this subpart, if a heat
exchange system subject to this subpart
is also subject to a standard identified
in paragraph (k)(l)(i) or (ii) of this
section, compliance with the applicable
provisions of the standard identified in
paragraph (k)(l)(i) or (ii) shall constitute
compliance with the applicable
provisions of this subpart with respect
to that heat exchange system.
  (i) 40 CFR part 63, subpart F.
  (ii) A subpart of this part which
requires compliance with the HON heat
exchange system requirements in
§ 63.104 (e.g., 40 CFR part 63, subpart JJJ
or IS).
  (2) After the applicable compliance
date specified in this subpart, if any
waste management unit subject to this
subpart is also subject to a standard
identified in paragraph (k)(2)(i) or (ii) of
this section, compliance with the
applicable provisions of the standard
identified in paragraph (k)(2)(i) or (ii)
shall constitute compliance with the
applicable provisions of this subpart
with respect to that waste management
unit.
  (i) 40 CFR part 63, subpart G.
  (ii) A subpart of this part which
requires compliance with the HON
process wastewater provisions in
§§63.132 through 63.147 (e.g., subpart
JJJ or U).
  (1) All terms in this subpart that
define a period of time for completion
of required tasks (e.g., monthly,
quarterly, annual),  unless specified
otherwise in the section or subsection
that imposes the requirement, refer to
the standard calendar periods, unless
altered by mutual agreement between
the owner or  operator and the
Administrator in accordance with
paragraph (1) (1) of this section.
  (1) Notwithstanding time periods
specified in this subpart for completion
of required tasks, such time periods may
be changed by mutual agreement
between the owner or operator and the
Administrator, as specified in the
General Provisions in 40 CFR part 63,
subpart A (e.g., a period could begin on
the compliance date or another date.
rather than on the first day of the
standard calendar period). For each time
period that is changed by agreement, the
revised period shall remain in effect
until it is changed. A new request is not
necessary for each recurring period.
  (2) Where the period specified for
compliance is a standard calendar
period, if the initial compliance date
occurs after the beginning of the period,
compliance shall be required according
to the schedule specified in paragraphs
(l)(2)(i) or (ii) of this section, as
appropriate.
  (i) Compliance shall be required
before the end of the standard calendar
period within which the compliance
deadline occurs, if there remains at least
2 weeks for tasks that shall be
performed monthly, at least 1 month for
tasks that shall be performed each
quarter, or at least 3 months for tasks
that shall be performed annually; or
  (ii) In all other cases, compliance
shall be required before the end  of the
first full standard calendar period after
the period within which the initial
compliance deadline occurs.
  (3) In all instances where a provision
of this subpart requires completion of a
task during each of multiple successive
periods, an owner or operator may
perform the required task at any time
during the specified period, provided
that the task is conducted at a
reasonable interval after completion of
the task during the previous period.

§63.1423 Definitions.
  (a) The following terms used in this
subpart shall have the meaning given
them in subparts A (§63.2), F(§ 63.101),
G (§63.111), and H (§63.161) as
specified after each term:
Act (subpart A)
Administrator (subpart A)
Automated monitoring and recording system
  (subpart G)
Boiler (subpart G)
Bottoms receiver (subpart H)
By-product (subpart F)
Car-seal (subpart G)
Closed-vent system (subpart G)
Combustion device (subpart G)
Commenced (subpart A)
Compliance date (subpart A)
Continuous monitoring system (subpart A)
Emission standard (subpart A)
EPA (subpart A)
Equipment (subpart H)
Flow indicator (subpart G)
Fuel gas (subpart F)
Fuel gas system (subpart F)
Hard-piping (subpart G)
Heat exchange system (subpart F)
Impurity (subpart F)
Incinerator (subpart G)
Major source (subpart A)
Malfunction (subpart A)
Open-ended valve or line (subpart H)
Operating permit (subpart F)
Organic monitoring device (subpart G)
Owner or operator (subpart A)
Performance evaluation (subpart A)
Performance test (subpart A)
Permitting authority (subpart A)
Plant site (subpart F)
Potential to emit (subpart A)
Primary fuel (subpart G)
Process heater (subpart G)
Process unit shutdown (subpart H)
Reactor (subpart G)
Recapture device (subpart G)
Relief valve (subpart G)

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Research and development facility (subpart
  F)
Run (subpart A)
Secondary fuel (subpart G)
Sensor (subpart H)
Specific gravity monitoring device (subpart
  G)
Start-up, shutdown, and malfunction plan
  (subpart F)
State (subpart A)
Surge control vessel (subpart H)
Temperature monitoring device (subpart G)
Test method (subpart A)
Total resource effectiveness Index value
  (subpart G)
Treatment process (subpart G)
Visible emission (subpart A)
  (b) All other terms used in this
subpart shall have the meaning given
them in this section.
  Annual average concentration, as
used in conjunction with the
wastewater provisions,  means the flow-
weighted annual average concentration
and is determined by the procedures in
§ 63.144(b), except as provided in
§ 63.1433(a) (2).
  Annual average flow rate, as used in
conjunction with the wastewater
provisions, is determined by the
procedures in §63.144(c).
  Batch cycle means the step or steps,
from start to finish, that occur in a batch
unit operation.
  Batch unit operation  means a unit
operation involving intermittent or
discontinuous feed into equipment, and,
in general,  involves the emptying of
equipment after the batch cycle ceases
and prior to beginning a new batch
cycle. Mass, temperature, concentration
and other properties of the process may
vary with time. Addition of raw material
and withdrawal of product do not
simultaneously occur in a batch unit
operation.
  Catalyst  extraction means the removal
of the catalyst using either solvent or
physical extraction method.
  Construction means the on-site
fabrication, erection, or installation of
an affected source. Construction also
means the on-site fabrication, erection,
or installation of a process unit or a
combination of process units which
subsequently becomes an affected
source or part of an affected source due
to a change in primary product.
  Continuous record means
documentation, either in hard copy or
computer readable form, of data values
measured at least once during
approximately equal intervals of 15
minutes and recorded at the frequency
specified in §63.1439(d).
  Continuous recorder is defined in
§63.111, except that when the
definition in § 63.111 reads "or records
15-minute or more frequent block
average values," the phrase "or records
                        1-hour or more frequent block average
                        values" shall apply for purposes of this
                        subpart.
                          Continuous  unit operation means a
                        unit operation where the inputs and
                        outputs flow continuously. Continuous
                        unit operations typically approach
                        steady-state conditions. Continuous unit
                        operations typically involve the
                        simultaneous addition of raw material
                        and withdrawal of the product.
                          Control technique means any
                        equipment or process control used for
                        capturing, recovering, or oxidizing
                        organic hazardous air pollutant vapors.
                        Such equipment includes, but is not
                        limited to, absorbers, adsorbers, boilers,
                        condensers, flares, Incinerators, process
                        heaters, and scrubbers, or any
                        combination thereof. Process control
                        includes extended cookout (as defined
                        in this section). Condensers operating as
                        reflux condensers that are necessary for
                        processing, such as liquid level control,
                        temperature control, or distillation
                        operation, shall be considered
                        inherently part of the process and will
                        not be  considered control techniques.
                          Emission point means an individual
                        process vent, storage vessel, wastewater
                        stream, or equipment leak.
                          Epoxide means a chemical compound
                        consisting of a three-membered cyclic
                        ether. Only emissions of epoxides listed
                        in Table 4 of this subpart (i.e., ethylene
                        oxide and propylene oxide) are
                        regulated by the provisions of this
                        subpart.
                          Equipment leak means emissions of
                        organic HAP from a pump, compressor,
                        agitator, pressure relief device, sampling
                        connection system, open-ended valve or
                        line, valve, surge control vessel, bottoms
                        receiver, or instrumentation  system in
                        organic HAP service.
                          Extended Cookout (ECO) means a
                        control technique that reduces the
                        amount of unreacted ethylene oxide
                        (EO) and/or propylene oxide (PO)
                        (epoxides) In the reactor. This is
                        accomplished by allowing the product
                        to react for a longer time period, thereby
                        having less unreacted epoxides and
                        reducing epoxides emissions that may
                        have otherwise occurred.
                          Flexible operation unit means a
                        process unit that manufactures different
                        chemical products by periodically
                        alternating raw materials fed to the
                        process unit or operating conditions at
                        the process unit. These units are also
                        referred to as campaign plants or
                        blocked operations.
                          Group 1 combination of batch process
                        vents means a collection of process
                        vents in a PMPU from batch unit
                        operations that are associated with the
                        use of a nonepoxlde organic HAP to
make or modify the product that meet
all of the following conditions:
  (1) Has annual nonepoxlde organic
HAP emissions, determined in
accordance with § 63.1428(b), of 11,800
kg/yr or greater, and
  (2) Has a cutoff flow rate, determined
in accordance with § 63.1428(e), that is
greater than or equal to the annual  .
average flow rate, determined in
accordance with § 63.1428(d).
  Group 2 combination of batch process
vents means a collection of process
vents in a PMPU from batch unit
operations that are associated with the
use of a nonepoxide organic HAP to"
make or modify the product that is not
classified as a Group 1 combination  of
batch process vents.
  Group 1 continuous process vent
means a process vent from a continuous
unit operation that is associated with
the use of a nonepoxide organic HAP to
make or modify die product that meets
all of the following conditions:
  (1) Has a flow rate greater than or
equal to 0.005 standard cubic meters per
minute,
  (2) Has a total organic HAP
concentration greater than or equal to 50
parts per million by volume, and
  (3) Has a total resource effectiveness
index value, calculated in accordance
with §63.1428(h)(l), less than or equal
to 1.0.
  Group 2 continuous process vent
means a process vent from a continuous
unit operation that is associated with
the use of a nonepoxide organic HAP to
make or modify the product that is not
classified as a Group 1  continuous
process vent.
  Group 1 storage vessel means a
storage vessel that meets the
applicability criteria specified in Table
3 of this  subpart.
  Group 2 storage vessel means a
storage vessel that does not fall within
the definition of a Group 1 storage
vessel.
  Group 1 wastewater stream means a
process wastewater stream at an existing
or new affected source that meets  the
criteria for Group 1 status in §63.132(c),
with the exceptions listed in
§ 63.1433(a)(2) for the purposes of this
subpart (i.e., for organic HAP listed  on
Table 4 of this subpart only).
  Group 2 wastewater stream means any
process wastewater stream as defined in
§ 63.101  at an existing affected source
that does not meet the definition (in this
section) of a Group 1 wastewater stream.
  In organic hazardous air pollutant
service or in organic HAP service means
that a piece of equipment either
contains or contacts a fluid (liquid or
gas) that Is at least 5 percent by weight
of total organic HAP (as defined in this

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                                                                    29447
section), as determined according to the
provisions of §63.180(d). The
provisions of §63.180(d) also specify
how to determine that a piece of
equipment is not in organic HAP
service.
  Initial start-up means the first time a
new or reconstructed affected source
begins production, or, for equipment
added or changed as described in
§ 63.1420(g), the first time the
equipment is put into operation to
produce a polyether polyol. Initial start-
up does not include operation solely for
testing equipment. Initial start-up does
not include subsequent start-ups of an
affected source or portion thereof
following malfunctions or shutdowns or
following changes in product for
flexible operation units. Further, for
purposes of §63.1422, initial start-up
does not include subsequent start-ups of
affected sources or portions thereof
following malfunctions or process unit
shutdowns.
  Maintenance wastewater is defined in
§63.101, except that the  term
"polyether polyol manufacturing
process unit" shall apply whenever the
term "chemical manufacturing process
unit" is used. Further, the generation of
wastewater from the routine rinsing or
washing of equipment in batch
operation between batches is not
maintenance wastewater, but is
considered to be process wastewater, for
the purposes of this subpart.
  Make or modify the product means to
produce the polyether polyol by
polymerization of epoxides or other
cyclic ethers with compounds having
one or more reactive hydrogens, and to
incorporate additives (e.g.,
preservatives, antioxidants, or diluents)
in order to maintain the quality of the
finished products before shipping.
Making and  modifying the product for
this regulation does not include grafting,
polymerizing the polyol, or reacting it
with compounds other than EO or PO.
  Maximum true vapor pressure is
defined in § 63.111, except that the
terms "transfer" and "transferred" shall
not apply for the purposes of this
subpart.
  New process unit means a process
unit for which the construction or
reconstruction commenced after
September 4, 1997.
  On-site or on site means, with respect
to records required to be maintained by
this subpart or required by another
subpart referenced by this  subpart, a
location within the plant site where the
affected source is located. On-site
storage of records includes, but is not
limited to, a location at the affected
source or PMPU to which the records
pertain or a  location elsewhere at the
plant site where the affected source is
located.
  Operating day refers to the 24-hour
period defined by the owner or operator
in the Notification of Compliance Status
required by § 63.1439(e)(5). That 24-
hour period may be from midnight to
midnight or another 24-hour period.
The operating day is the 24-hour period
for which daily average monitoring
values are determined.
  Organic hazardous airpollutant(s)
(organic HAP) means one or more of the
chemicals listed in Table 4 of this
subpart, or any other chemical which:
  (1) Is knowingly produced or
introduced into the manufacturing
process other than as an impurity; and
  (2) Is listed in Table 2 of 40 CFR part
63, subpart F in the HON.
  Polyether polyol means a compound
formed through the polymerization of
EO or PO or  other cyclic ethers with
compounds having one or more reactive
hydrogens (i.e., a hydrogen atom
bonded to nitrogen, oxygen,
phosphorus, sulfur, etc.) to form
polyethers (i.e., compounds with two or
more ether bonds). This definition of
"polyether polyol" excludes hydroxy
ethyl cellulose and materials regulated
under 40 CFR part 63, subparts F, G,
and H (the HON), such as glycols and
glycol ethers.
  Polyether polyol manufacturing
process unit (PMPU) means a process
unit that manufactures a polyether
polyol as its primary product, or a
process unit designated as a polyether
polyol manufacturing unit in
accordance with § 63.1420(e)(2). A
polyether polyol manufacturing process
unit consists of more than one unit
operation. This collection of equipment
includes purification systems, reactors
and their associated product separators
and recovery devices, distillation units
and their associated distillate receivers
and recovery devices, other associated
unit operations, storage vessels, surge
control vessels, bottoms receivers,
product transfer racks, connected ducts
and piping, combustion, recovery, or
recapture devices or systems, and the
equipment (i.e., all pumps, compressors,
agitators, pressure relief devices,
sampling connection systems, open-
ended valves or lines, valves,
connectors, and instrumentation
systems that are associated with the
PMPU) that  are subject to the equipment
leak provisions as specified in
§63.1434.
  Pressure decay curve is the graph of
the reactor pressure versus time from
the point when epoxide feed is stopped
until the reactor pressure is constant,
indicating that most of the epoxide has
reacted out of the vapor and liquid
phases. This curve shall be determined
with no leaks or vents from the reactor.
  Primary product is defined in and
determined by the procedures specified
in§63.1420(e).
  Process unit means a collection of
equipment assembled and connected by
pipes or ducts to process raw materials
and to manufacture a product.
  Process vent means a point of
emission from a unit operation having a
gaseous stream that is discharged to the
atmosphere either .directly or after
passing through one or more
combustion, recovery, or recapture
devices. A process vent from a
continuous unit operation is a gaseous
emission stream containing more than
0.005 weight-percent total organic HAP.
A process vent from a batch unit
operation is a gaseous emission stream
containing more than 225 kilograms per
year (500 pounds per year) of organic
HAP emissions. Unit operations that
may have process vents are condensers,
distillation units, reactors, or other  unit
operations within the PMPU. Process
vents exclude pressure relief valve
discharges, gaseous streams routed  to a
fuel gas system (s), and leaks from
equipment regulated under § 63.1434. A
gaseous emission stream is no longer
considered to be a process vent after the
stream has been controlled and
monitored in accordance with the
applicable provisions of this subpart.
  Process wastewater means wastewater
which, during manufacturing or
processing, comes into direct contact
with or results from the production or
use of any raw material, intermediate
product, finished product, by-product,
or waste product. Examples are product
tank drawdown or feed tank drawdown;
water formed during a chemical reaction
or used as a reactant; water used to
wash impurities from organic products
or reactants; equipment washes between
batches in a batch process; water used
to cool or quench organic vapor streams
through direct contact; and condensed
steam from Jet ejector systems pulling
vacuum on vessels containing organics.
  Product means a compound or
material which is manufactured by a
process unit By-products, isolated
intermediates, impurities, wastes, and
trace contaminants are not considered
products.
  Product class means a group of
polyether polyols with a similar
pressure decay curve (or faster pressure
decay curves) that are manufactured
within a given set of operating
conditions representing the decline in
pressure versus time. All products
within a product class shall have an
essentially similar pressure decay curve,
and operate within a given set of

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operating conditions. These operating
conditions are: a minimum reaction
temperature; the number of -OH groups
in the polyol; a minimum catalyst
concentration; the type of catalyst (e.g.,
self-catalyzed, base catalyst, or acid
catalyst); the epoxide ratio, or a range
for that ratio; and the reaction
conditions of the system (e.g., the size
of the reactor, or the size of the batch).
  Reactor liquid means the compound
or material made in the reactor, even
though the substance may  be transferred
to another vessel. This material may
require further modifications before
becoming a final product, in which case
the reactor liquid is classified as an
"intermediate." This material may be
complete at this stage, in which case the
reactor liquid is classified as a
"product."
  Reconstruction means the
replacement of components of an
affected source or of a previously
unaffected stationary source that
becomes an affected source as a result
of the replacement, to such an extent
that:
  (1) The fixed capital cost of the new
components exceeds 50 percent of the
fixed capital cost that would be required
to construct a comparable new source;
and
  (2) It is technologically and
economically feasible for the
reconstructed source to meet the
provisions of this subpart.
  Recovery device means an individual
ur.it of equipment capable  of and
normally used for the purpose of
recovering chemicals for fuel value (i.e.,
net positive heating value), use, reuse,
or for sale for fuel value, use, or reuse.
Examples of equipment that may be
recovery devices include absorbers,
carbon adsorbers, condensers  (except
reflux condensers), oil-water separators
or organic-water separators, or organic
removal devices  such as decanters,
strippers, or thin film evaporation units.
For the purposes of the monitoring,
recordkeeping, or reporting
requirements of this subpart, recapture
devices are considered to be recovery
devices.
  Residual is defined In § 63.111, except
that when the definition in § 63.111
uses the term "Table 9 compounds," the
term "organic HAP listed in Table 9 of
subpart G" shall  apply, for the purposes
of this subpart.
  Shutdown means the cessation of
operation of an affected source, a PMPU
within an affected source, a waste
management unit or unit operation
within an affected source, equipment
required or used  to comply with this
subpart, or the emptying or degassing of
a storage vessel. The purposes for a
                        shutdown may include, but are not
                        limited to, periodic maintenance,
                        replacement of equipment, or
                        equipment repairs. Shutdown does not
                        include the normal periods between
                        batch cycles. For continuous unit
                        operations, shutdown includes
                        transitional conditions dur to changes
                        in product for flexible operation units.
                        For batch unit operations, shutdown
                        does not include transitional conditions
                        due to changes in product for flexible •
                        operation units. For purposes of the
                        wastewater provisions, shutdown does
                        not include the routine rinsing or
                        washing of equipment between batch
                        cycles.
                          Start-up means the setting into
                        operation of an affected source, a PMPU
                        within the affected source, a waste
                        management unit or unit operation
                        within an affected source, equipment
                        required or used to comply with this
                        subpart, or a storage vessel after
                        emptying and degassing. For all
                        processes, start-up includes initial start-
                        up and operation solely for testing
                        equipment. Start-up does not include
                        the recharging of batch unit operations.
                        For continuous unit operations, start-up
                        includes transitional conditions due  to
                        changes in product for flexible
                        operation units. For batch unit
                        operations, start-up does not include
                        transitional conditions due to changes
                        in product for flexible operation units.
                          Steady-state conditions means that all
                        variables (temperatures, pressures,
                        volumes, flow rates, etc.) in a process do
                        not vary significantly with time; minor
                        fluctuations about constant mean values
                        may occur.
                          Storage vessel means a tank or other
                        vessel that is used to store liquids that
                        contain one or more organic HAP.
                        Storage vessels do not include:
                          (1) Vessels permanently attached to
                        motor vehicles such as trucks, railcars,
                        barges, or ships;
                          (2) Pressure vessels designed to
                        operate in excess of 204.9 kilopascals
                        and without emissions to the
                        atmosphere;
                          (3) Vessels with capacities smaller
                        than 38 cubic meters;
                          (4) Vessels and equipment storing
                        and/or handling material that contains
                        no organic HAP, or organic HAP as
                        impurities only;
                          (5) Surge control vessels and bottoms
                        receiver tanks;
                          (6) Wastewater storage tanks; and
                          (7) Storage vessels assigned to another
                        process unit regulated under another
                        subpart of part 63.
                          Total organic compounds (TOO) are
                        those  compounds, excluding methane
                        and ethane, measured according to the
procedures of Method 18 or Method
25A of 40 CFR part 60, appendix A.
  Unit operation means one or more
pieces of process equipment used to
make a single change to the physical or
chemical characteristics of one or more
process streams. Unit operations
include, but are not limited to, reactors,
distillation units, extraction columns,
absorbers, decanters, condensers, and
filtration equipment.
  Vent stream, as used in reference to
process vents, means the emissions from
a process vent.
  Waste management unit is defined in
§ 63.111, except that when the
definition in § 63.111 uses the term
"chemical manufacturing process unit,"
the term "PMPU" shall apply for the
purposes of this subpart.
  Wastewater means water that:
  (1) Contains either
  (i) An annual average concentration of
organic HAP listed in Table 4 of this
subpart of at least 5 parts per million by
weight and has an annual average flow
rate of 0.02 liter per minute or greater,
or
  (ii) An annual average concentration
of organic HAP listed on Table 4 of this
subpart of at least 10,000 parts per
million by weight at any flow rate; and
that
  <2) Is discarded from a PMPU  that is
part of an affected source. Wastewater is
process wastewater or maintenance
wastewater.

§63.1424  Emission standards.
  (a) Except as provided under
paragraph (b) of this section, the owner
or operator of an existing or new
affected source shall comply with the
provisions in:
  (1) Sections 63.1425 through 63.1430
for process vents;
  (2) Section 63.1432 for storage vessels;
  (3) Section 63.1433 for wastewater;
  (4) Section 63.1434 for equipment
leaks;
  (5) Section 63.1435 for heat
exchangers;
  (6) Section 63.1437 for additional test
methods and procedures;
  (7) Section 63.1438 for monitoring
levels and excursions; and
  (8) Section 63.1439 for general
reporting and recordkeeping
requirements.
  (b) When emissions of different kinds
(i.e., emissions from process vents
subject to §§63.1425 through 63.1430,
storage vessels subject to §63.1432,
process wastewater, and/or in-process
equipment subject to §63.149) are
combined, and at least one of the
emission streams would require control
according to the applicable provision in
the  absence of combination with other

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                                                                    29449
emission streams, the owner or operator
shall comply with the requirements of
either paragraph (b)(l) or (2) of this
section.
  (1) Comply with the applicable
requirements of this subpart for each
kind of emission in the stream as
specified in paragraphs (a)(l) through
(5) of this section; or
  (2) Comply with the most stringent set
of requirements that applies to any
individual emission stream that is
included in the combined stream, where
either that emission stream would be
classified as requiring control in the
absence of combination with other
emission streams, or the owner chooses
to consider that emission stream to
require control for the purposes of this
paragraph.

§ 63.1425 Process vent control
requirements.
  (a) Applicability of process vent
control requirements. For each process
vent at an affected source, the owner or
operator shall  comply with the
provisions of this section. Owners and
operators of all affected sources using
epoxides in the production of polyether
polyols are subject to the requirements
of paragraph (b) of this section. Owners
or operators are subject to the
requirements of paragraph (c) of this
section only if epoxides are used in the
production of  polyether polyols and
nonepoxide organic HAP are used to
make or modify the product. Similarly,
owners or operators are subject to the
requirements of paragraph (d) of this
section only if epoxides are used in the
production of  polyether polyols and
organic HAP are used in catalyst
extraction. The owner or operator of an
affected source where polyether polyol
products are produced using
tetrahydrofuran shall comply with
paragraph (f) of this section.
  (b) .Requirements for epoxide
emissions. The owner or operator of an
affected source where polyether polyol
products are produced using epoxides
shall reduce epoxide emissions from
process vents  from batch unit operations
and continuous unit operations within
each PMPU in accordance with either
paragraph  (b)(l) or (2) of this section.
   (1) For new  affected sources, the
 owner or operator shall comply with
 paragraph  (b)(l)(i), (ii), or (iii) this
 section. The owner or operator also has
 the option of complying with a
 combination of paragraphs (b)(l)(i) and
 (ii) of this section. If the owner or
 operator chooses to comply with a
 combination of paragraphs (b)(l)(i) and
 (ii) of this section, each process vent not
 controlled in accordance with paragraph
 (b)(l)(ii) of this section shall be part of
the group of applicable process vents
that shall then comply with paragraph
(b)(l)(i) of this section.
  (i) Reduce the total epoxide emissions
from the group of applicable process
vents by an aggregated 99.9 percent;
  (ii) Maintain an outlet concentration
of total epoxides or TOC after each
combustion, recapture, or recovery
device of 20 ppmv or less; or
  (iii) Maintain an emission factor of no
greater than 4.43 x 10"3 kilogram
epoxide emissions per megagram of
product (4.43 x 10~3 pounds epoxide
emissions per 1,000 pounds of product)
for all process vents in the PMPU.
  (2) For existing affected sources, the
owner or operator shall comply with
either paragraph (b)(2)(i),  (ii), (iii), or
(iv) of this section. The owner or
operator also  has the option of
complying with a combination of
paragraphs (b)(2)(ii) and (iii) of this
section. If the owner or operator chooses
to comply with a combination of
paragraphs (b) (2) (ii) and (iii) of this
section, each  process vent that is not
controlled in  accordance with paragraph
(b) (2) (iii) of this section shall be part of
the group of applicable process vents
that shall then comply with paragraph
(b)(2)(ii) of this section. The owner or
operator also  has the option of
complying with a combination of
paragraphs (b)(2)(i) and (iii) of this
section.
   (i) Reduce the total epoxide emissions
from each process vent using a flare;
   (ii) Reduce the total epoxide
emissions from the group of applicable
process vents by an aggregated 98
percent;
   (iii) Maintain an outlet  concentration
of total epoxides or TOC after each
combustion, recapture or  recovery
devices of 20 ppmv or less; or
   (iv) Maintain an emission factor of no
greater than 1.69 x 10~2 kilogram
epoxide emissions per megagram of
product (1.69 x 10~2 pounds epoxide
emissions per 1,000 pounds of product)
for all process vents in the PMPU.
   (c) Requirements for nonepoxide
organic HAP emissions from making or
modifying the product. The owner or
operator of a  new or existing source
where polyether polyols are produced
using epoxides,  and where nonepoxide
organic HAP are used to make or modify
the product, shall comply with this
paragraph. For each process vent from  a
continuous unit operation that is
associated with the use of a nonepoxide
organic HAP to make  or modify the
product, the  owner or operator shall
determine if  the process vent is a Group
 1 continuous process vent, as defined in
§ 63.1423.  For the combination of
process vents from batch unit operations
that are associated with the use of a
nonepoxide organic HAP to make or
modify the product, the owner or
operator shall determine if the
combination of process vents is a Group
1 combination of batch process vents, as
defined in §63.1423.
  (1) Requirements for Group 1
combinations of batch process vents.
For each Group 1 combination of batch
process vents, as defined in § 63.1423,
the owner or operator shall comply with
either paragraph (c)(l)(i) or (ii) of this
section.
  (i) Reduce nonepoxide organic HAP
emissions using a flare.
  (ii) Reduce nonepoxide organic HAP
emissions by 90 percent using a
combustion, recovery, or recapture
device.
  (2) Requirements for Group 2
combinations of batch process vents.
For each Group 2 combination of batch
process vents,  as defined in §63.1423,
the owner or operator reassess the group
status when process changes occur, in
accordance with the provisions of
§63.1428(g). No control requirements
apply to these process vents.
  (3) .Requirements for Group 1
continuous process vents. For each
Group 1 continuous process vent, as
defined in § 63.1423, the owner or
operator shall  comply with either
paragraph  (c)(3)(i) or (ii) of this section.
  (i) Reduce nonepoxide organic HAP
emissions using a flare.
  (ii) Reduce nonepoxide organic HAP
emissions by 98 percent using a
combustion, recovery, or recapture
device.
  (4) Requirements for Group 2
continuous process vents. For each
Group 2 continuous process vent, as
defined in §63.1423, the owner or
operator shall comply with either
paragraph (c)(4)(i) or (ii) of this section.
  (i) If the TRE for the process vent is
greater than 1.0 but less than 4.0, the
owner or operator shall comply with the
monitoring provisions in §63.1429, the
recordkeeping provisions in
§ 63.1430(d), and recalculate the TRE
index value when process changes
occur, In accordance with the
provisions In § 63.1428(h)(2).
   (ii) If the TRE for the process vent is
greater than 4.0, the owner or operator
shall recalculate the TRE index value
when process changes occur, in
accordance with the provisions in
 §63.1428(h)(2).
   (d) Requirements for nonepoxide
 organic HAP emissions from catalyst
 extraction. The owner or operator of a
 new or existing affected source where
 polyether polyol products are produced
 using epoxide compounds shall comply
 with either paragraph (d)(l) or (2) of this

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Federal Register/Vol. 64, No. 104/Tuesday, June  1, 1999/Rules and Regulations
 section. A PMPU that does not use any
 nonepoxide organic HAP in catalyst
 extraction is exempt from the
 requirements of this paragraph.
   (1) Reduce emissions of nonepoxide
 organic HAP from all process vents
 associated with catalyst extraction using
 a flare; or
   (2) Reduce emissions of nonepoxide
 organic HAP from the sum total of all
 process vents associated with catalyst
' extraction by an aggregated 90 percent
 for each PMPU.
   (e) [Reserved]
   (i) Requirements for process vents at
 PMPUs that produce polyether polyol
 products using tetrahydrofuran. For
 each process vent in a PMPU that uses
 tetrahydrofuran (THF) to produce one or
 more polyether polyol products that is,
 or is part of, an affected source, the
 owner or operator shall comply with the
 HON process vent requirements in
 §§ 63.113 through 63.118, except as
 provided for in paragraphs (f)(l) through
 (10) of this section.
   (1) When December 31,  1992 is
 referred to in the HON process vent
 requirements in §63.113, it shall be
 replaced with September 4, 1997, for the
 purposes of this subpart.
   (2) When §63.151 (f), alternative
 monitoring parameters, and §63.152(e),
 submission of an operating permit
 application, are  referred to in
 §§63.114(c)and63.117(e),§63.1439(f),
 alternative monitoring parameters, and
 §63.1439(e)(8), submission of an
 operating permit application,
 respectively, shall apply for the
 purposes of this subpart.
   (3) When the Notification of
 Compliance Status requirements
 contained  in §63.152(b) are referred to
 in §§63.114, 63.117, and 63.118, the
 Notification of Compliance Status
 requirements contained in
 § 63.1439(e)(5) shall apply for the
 purposes of this subpart.
   (4) When the Periodic Report
 requirements contained in § 63.152(c)
 are referred to in §§63.117 and 63.118,
 the Periodic Report requirements
 contained in §63.1439(e)(6) shall apply
 for the purposes of this subpart.
   (5) When the definition of excursion
 in §63.152(c)(2)(ii)(A) is referred to in
 §63.118(f)(2), the definition of
 excursion in § 63.1438 (f) shall apply for
 the purposes of this subpart.
   (6) When §63.114(e) specifies that an
 owner or operator shall submit the
 information required in §63.152 (b) in
 order to establish the parameter
 monitoring range, the owner or operator
 shall comply with the provisions of
 § 63.1438 for establishing the-parameter
 monitoring level and shall comply with
 §63.1439(e)(5)(ii) or §63.1439(e)(8) for
                        the purposes of reporting information
                        related to the establishment of the
                        parameter monitoring level, for the
                        purposes of this subpart. Further, the
                        term "level" shall apply whenever the
                        term "range" is used in §§63.114,
                        63.117, and 63.118.
                          (7) When reports of process changes
                        are required under §63.118(g), (h), (i), or
                        0), paragraphs  (f)(7)(i) through (iv) of
                        this section shall apply for the purposes
                        of this subpart.  •
                          (i) For the purposes of this subpart,
                        whenever a process change, as defined
                        in § 63.115(e), is made that causes a
                        Group 2 process vent to become a Group
                        1 process vent, the owner or operator
                        shall submit a report within 180 days
                        after the process change is made or the
                        information regarding the process
                        change is known to the owner or
                        operator. This report may be included in
                        the next Periodic Report. A description
                        of the process change shall be included
                        in this report.
                          (ii) Whenever a process change, as
                        defined in § 63.115(e),  is made that
                        causes a Group 2 process vent with a
                        TRE greater than 4.0 to become a Group
                        2 process vent with a TRE less than 4.0,
                        the owner or operator shall submit a
                        report within 180 days after the process
                        change is made or the information
                        regarding the process change is known
                        to the owner or operator, unless the flow
                        rate is less than 0.005 standard cubic
                        meters per minute. This report may be
                        included in the next Periodic Report. A
                        description of the process change shall
                        be included in this report.
                          (iii) Whenever a process change, as
                        defined in § 63.115(e), is made that
                        causes a Group 2 process vent with a
                        flow rate less than 0.005 standard cubic
                        meter per minute (scmm) to become a
                        Group 2 process vent with a flow rate
                        of 0.005 scmm or greater and a TRE
                        index value less than or equal to 4.0, the
                        owner or operator shall submit a report
                        within  180 days after the process change
                        is made or the information regarding the
                        process change is known to the owner
                        or operator, unless the organic HAP
                        concentration is less than 50 ppmv. This
                        report may be included in the next
                        Periodic Report. A description of the
                        process change shall be submitted with
                        the report.
                          (iv) Whenever a process change, as
                        defined in § 63.115(e), is made that
                        causes a Group 2 process vent with an
                        organic HAP concentration less than 50
                        parts per million by volume (ppmv) to
                        become a Group 2 process vent with an
                        organic HAP concentration of 50 ppmv
                        or greater and a TRE index value less
                        than or  equal to 4.0, the owner or
                        operator shall submit a report within
                        180 days after the process change is
made or the information regarding the
process change is known to the owner
or operator, unless the flow rate is less
than 0.005 standard cubic meters per
minute. This report may be included in
the next Periodic Report. A description
of the process change shall be submitted
with this report.
  (8) When §63.118 refers to §63.152(f),
the recordkeeping requirements in
§ 63.1439(d) shall apply for the
purposes of this subpart.
  (9) When §§ 63.115 and 63.116 refer
to Table 2 of 40 CFR part 63, subpart F,
the owner or operator shall only
consider organic HAP as defined  in this
subpart.
  (10) When the provisions of
§ 63.116(c)(3) and (4) specify that
Method 18, 40 CFR part 60, appendix A
shall be used, Method 18 or Method
25A, 40 CFR part 60, appendix A may
be used for the-purposes of this subpart.
The use of Method 25A, 40 CFR part 60,
appendix A shall comply with
paragraphs (f)(10)(i) and (ii) of this
section.
  (i) The organic HAP used as the
calibration gas for Method 25A, 40 CFR
part 60, appendix A shall be the single
organic HAP representing the largest
percent by volume of the emissions.
  (ii) The use of Method 25A, 40  CFR
part 60, appendix A is acceptable if the
response from the high-level calibration
gas is at least 20 times the standard
deviation of the response from the zero
calibration gas when the instrument is
zeroed on the most sensitive scale.

§ 63.1426  Process vent requirements for
determining organic HAP concentration,
control efficiency, and aggregated organic
HAP emission reduction for a PMPU.
  (a) Use of a flare. When a flare is used
to comply with §63.1425(b)(l)(i)  (in
combination with other control
techniques), (b)(2)(i), (c)(l)(i),  (c)(3)(i),
or (d)(l), the owner or operator shall
comply with § 63.1437(c), and is not
required to demonstrate the control
efficiency for the flare, if the owner or
operator chooses to assume a 98 percent
control efficiency for that flare, as
allowed under paragraph (e)(2)(i)  of this
section. In order to use only a  flare to
comply with §63.1425(b)(l)(i), or to use
a flare and apply a control efficiency
greater than 98 percent, an owner or
operator shall submit a request in
accordance with § 63.6 (g) In either the
Precompliance Report described in
§ 63.1439(e)(4), or in a supplement to
the precompliance report, as described
in§63.1439(e)(4)(vii).
  (b) Exceptions to performance tests.
An owner or operator is not required to
conduct a performance test when  a
combustion, recovery, or recapture

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                                                                     29451
device specified in paragraphs (b)(l)
through (6) of this section is used to
comply with §63.1425(b), (c), or (d).
  (1) A boiler or process heater with a
design heat input capacity of 44
megawatts or greater.
  (2) A boiler or process heater where
the process vent stream is introduced
with the primary fuel or is used as the
primary fuel.
  (3) A combustion, recovery, or
recapture device for which a
performance test was conducted within
the preceding 5-year period, using the
same Methods specified in this section
and either no deliberate process changes
have been made since the test, or the
owner or operator can demonstrate that
the results of the performance test, with
or without adjustments, reliably
demonstrate compliance despite process
changes. The operating parameters
reported under the previous
performance test shall be sufficient to
meet the parameter monitoring
requirements in this subpart.
  (4) A boiler or process heater burning
hazardous waste for which the owner or
operator:
  (i) Has been issued a final hazardous
waste permit under 40 CFR  part 270 and
complies with the requirements for
hazardous waste burned in boilers and
industrial furnaces in 40 CFR part 266,
subpart H; or
  (ii) Has certified compliance with the
interim status requirements for
hazardous waste burned in boilers and
industrial furnaces in of 40 CFR part
266, subpart H.
  (5) A hazardous waste incinerator for
which the owner or operator has been
issued a final permit under 40 CFR part
270 and complies with the requirements
for  incinerators in 40 CFR part 264,
subpart 0, or has certified compliance
with the interim status requirements for
incinerators in 40 CFR part 265, subpart
O.
  (6) Combustion, recovery  or recapture
device (except for condensers)
performance may be determined by
using the design evaluation  described in
paragraph (i) of this section, provided
that the combustion, recovery or
recapture device receives less than 10
tons per year (9.1 megagrams per year)
of uncontrolled organic HAP emissions
from one or more PMPUs. determined in
accordance with paragraph (d) of this
section. If a combustion, recovery or
recapture device exempted from testing
in accordance with this paragraph
receives more than 10 tons per year (9.1
megagrams per year) of uncontrolled
organic HAP emissions from one or
more PMPUs, the owner or operator
shall comply with the performance test
requirements in paragraph (c) of this
section and shall submit the test report
in the next Periodic Report.
   (c) Determination of organic HAP
concentration and control efficiency.
Except as provided in paragraphs (a)
and (b) of this section, an owner or
operator using a combustion, recovery,
or recapture device to comply with an
epoxide or organic HAP percent
reduction efficiency requirement in
S63.1425(b)(l)(i). (b)(2)(ii), (c)(l)(ii).
(c)(3)(ii), or (d)(2); an epoxide
concentration limitation in
§63.1425(b)(l)(ii) or (b)(2)(ii); or an
annual epoxide emission limitation in
§63.1425 (b)(l)(iii) or (b)(2)(iv), shall
conduct a performance test using the
applicable procedures in paragraphs
(c)(l) through (4) of this section. The
organic HAP or epoxide concentration
and percent reduction may be measured
as total epoxide, total organic HAP, or
as TOC minus methane and ethane
according to the procedures specified.
When conducting testing in accordance
with this section, the owner or operator
is only required to measure HAP of
concerti for the specific requirement for
which compliance is being determined.
For instance, to determine compliance
with the epoxide emission requirement
of §63.1425(b), the owner or operator is
only required to measure  epoxide
control efficiency or outlet
concentration.
  (1) Sampling site location. The
sampling site location shall be
determined as specified in paragraphs
(c)(l)(i) and (ii) of this section.
  (i) For determination of compliance
with a percent reduction of total
epoxide requirement in
§63.1425(b)(l)(i). (b)(2)(ii), or a percent
reduction of total organic HAP
requirement in §63.1425(c)(l)(ii),
(c)(3)(ii), or (d)(2), sampling sites shall
be located at the inlet of the
combustion, recovery, or recapture
device as specified in paragraphs
(c)(l)(i)(A), (B), and (C) of this section,
and at the outlet of the combustion,
recovery, or recapture device.
  (A) For process vents from continuous
unit operations, the inlet sampling site
shall be determined in accordance with
either paragraph (c)(l)(i)(A)(J) or (2) of
this section.
  (1) To demonstrate compliance with
either the provisions for epoxide
emissions in §63.1425(b)  or the
provisions for nonepoxide organic HAP
emissions from catalyst extraction  in
§63.1425(d),  the inlet sampling site
shall be located after the exit from  the
continuous unit operation but before
any recovery devices, or
  (2) To demonstrate compliance with
the requirements for nonepoxide
organic HAP emissions from the use of
nonepoxide organic HAP in making or
modifying the product in §63.1425(c),
the inlet sampling site shall be located
after all control techniques to reduce
epoxide emissions and after the final
nonepoxide organic HAP recovery
device.
  (B) For process vents from batch unit
operations, the inlet sampling site shall
be determined in accordance with either
paragraph (c)(l)(i)(B)(J) or (2) of this
section.
  (1) To demonstrate compliance with
either the provisions for epoxide
emissions in § 63.1425(b) or the
provisions for nonepoxide organic HAP
emissions from catalyst extraction in
§ 63.1425(d), the inlet sampling site
shall be located after the exit from the
batch unit operation but before any
recovery device.
  (2) To demonstrate compliance with
the requirements for nonepoxide
organic HAP emissions in making or
modifying the product in §63.1425(c),
the inlet sampling site shall be located
after all control techniques to reduce
epoxide emissions but before any
nonepoxide organic HAP recovery
device.
  (C) If a process vent stream is
introduced with the combustion air or
as a secondary fuel into a boiler or
process heater with a design capacity
less than 44 megawatts, selection of the
location of the inlet sampling sites shall
ensure the measurement of total organic
HAP or TOC (minus methane and
ethane) concentrations in all process
vent streams and primary and secondary
fuels introduced into the boiler or
process heater.
  (ii) To determine compliance with a
parts per million by volume total
epoxide or TOC limit in
§63.1425(b)(l)(ii) or (b)(2)(iii),  the
sampling site shall be located at the
outlet of the combustion, recovery, or
recapture device.
  (2) [Reserved]
  (3) Testing conditions and calculation
of TOC or total organic HAP
concentration, (i) Testing conditions
shall be as specified in paragraphs
(c)(3)(i)(A) through (E) of this section, as
appropriate.
  (A) Testing of process vents from
continuous unit operations shall be
conducted at maximum representative
operating conditions, as described in
§ 63.1437 (a) (1). Each test shall consist of
three 1-hour runs. Gas stream volumetric
flow rates shall be measured at
approximately equal intervals of about
15 minutes during each 1-hour run. The
organic HAP concentration (of the HAP
of concern) shall be determined from
samples collected in an integrated
sample over the duration of each 1-hour

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Federal Register/Vol.  64,  No. 104/Tuesday, June 1,  1999/Rules  and Regulations
test run, or from grab samples collected
simultaneously with the flow rate
measurements (at approximately equal
intervals of about 15 minutes). If an
integrated sample is collected for
laboratory analysis, the sampling rate
shall be adjusted proportionally to
reflect variations in flow rate. For gas
streams from continuous unit
operations, the organic HAP
concentration or control efficiency used
to determine compliance shall be the
average organic HAP concentration or
control efficiency of the three test runs.
   (B) Testing of process vents from
batch unit operations shall be
conducted at absolute worst-case
conditions or hypothetical worst-case
conditions, as defined in paragraphs
(c)(3)(i)(B)(7) through (5) of this section.
Worst-case conditions are limited to  the
maximum production allowed in a State
or Federal permit or regulation and the
conditions specified in §63.1437(a)(l).
Gas stream volumetric flow rates shall
be measured at 15-minute intervals, or
at least once during the emission
episode. The organic HAP or TOC
concentration shall be determined from
samples collected in an integrated
sample over the duration of the test,  or
from grab samples collected
simultaneously with the flow rate
measurements (at approximately equal
intervals of about 15 minutes). If an
integrated sample is collected for
laboratory analysis, the sampling rate
shall be adjusted proportionally to
reflect variations in flow rate.
                          (1) Absolute worst-case conditions are
                        defined by the criteria presented In
                        paragraph (c) (3) (i)(B) (;)(/) or (ii) of this
                        section if the maximum load is the most
                        challenging condition for the control
                        device. Otherwise, absolute worst-case
                        conditions are defined by the conditions
                        in paragraph (c)(3)(i)(B)(J)(iij) of this
                        section.
                          (i) The period in which the inlet to the
                        control device will contain at least 50
                        percent of the maximum HAP load (in
                        Ibs) capable  of being vented to the
                        control device over any 8-hour period.
                        An emission profile as described in
                        paragraph (c)(3)(i)(B)(3)(i) of this section
                        shall be used to identify the 8-hour
                        period that includes the maximum
                        projected HAP load.
                          (ii) A period of time in which the inlet
                        to the control device will contain the
                        highest HAP mass loading rate capable
                        of being vented to the control device.
                        An emission profile as described in
                        paragraph (c)(3)(i)(B)(3)(i) of this section
                        shall be used to identify the period of
                        maximum HAP loading.
                          (iii) The period of time when the HAP
                        loading or stream composition
                        (including non-HAP) is most
                        challenging for the control device.
                        These conditions include, but are not
                        limited to the following: periods when
                        the stream contains  the highest
                        combined VOC and  HAP load described
                        by the emission profiles in paragraph
                        (c)(3)(i)(B)(3) of this section; periods
                        when the streams contain HAP
                        constituents that approach limits of
                        solubility for scrubbing media; or
periods when the streams contain HAP
constituents that approach limits of
adsorptivity for carbon adsorption
systems.
  (2) Hypothetical worstose
conditions are simulated test conditions
that, at a minimum, contain the highest
hourly HAP load of emissions that
would be predicted to be vented to the
control device from the emissions
profile described in paragraph
(c)(3)(i)(B)(3)W) or  (iii) of this section.
  (3) The owner or operator shall
develop an emission profile for the vent
to the control device that describes the
characteristics of the vent stream at the
inlet to the control device under worst
case conditions. The emission profile
shall be developed based on any one of
the procedures described in paragraphs
(c)(3)(i)(B)(3) (i) through (iii) of this
section, as required by paragraph
(c)(3)(i)(B) of this section.
  (i) The emission profile shall consider
all emission episodes that could
contribute to the vent  stack for a period
of time that is sufficient to include all
processes venting to the stack and shall
consider production scheduling. The
profile shall describe the HAP load to
the device that equals  the highest sum
of emissions from the episodes that can
vent to the control device in any given
period, not to exceed 1 hour. Emissions
per episode shall be divided by the
duration of the episode only if the
duration of the episode is longer than 1
hour, and  emissions per episode shall
be calculated using the procedures
specified in Equation  1;
                                                                       [Equation 1]
Where:
E = Mass of HAP emitted.
V = Purge flow rate at the temperature
    and pressure of the vessel vapor
    space.
R = Ideal gas law constant.
T = Temperature of the vessel vapor
    space (absolute).
P, = Partial pressure of the individual
    HAP.
Pj = Partial pressure of individual
    condensable VOC compounds
    (including HAP).
PT = Pressure of the vessel vapor space.
MWi = Molecular weight of the
    individual HAP.
t = Time of purge.
n = Number of HAP compounds in the
    emission stream.
i = Identifier for a HAP compound.
                        j = Identifier for a condensable
                            compound.
                        m = Number of condensable compounds
                            (including HAP) in the emission
                            stream.

                          (it) The emission profile shall consist
                        of emissions that meet or exceed the
                        highest emissions that would be
                        expected under actual processing
                        conditions. The profile shall describe
                        equipment configurations used to
                        generate the emission events, volatility
                        of materials processed in the equipment,
                        and the rationale used to identify and
                        characterize the emission events. The
                        emissions may be based on using
                        compounds more volatile than
                        compounds actually used in the
                        process(es), and the emissions may be
generated from all equipment in the
process (es) or only selected equipment.
  (iii) The emission profile shall
consider the capture and control system
limitations and the highest emissions
that can be routed to the control device,
based on maximum flow rate and
concentrations possible because of
limitations on conveyance and control
equipment (e.g., fans, LEL alarms and
safety bypasses).
  (4) Three runs, each at a minimum of
the complete duration of the batch
venting episode or 1 hour, whichever is
shorter, and a maximum of 8 hours, are
required  for performance testing. Each
run shall occur over the same worst-case
conditions, as  defined in paragraph
(c)(3)(i)(B) of this section.

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                                                                     29453
  (5) If a condenser is used to control
the process vent stream (s), the worst
case emission episode(s) shall represent
a period of time in which a process vent
from the batch cycle or combination of
cycles (if more than one cycle is vented
through the same process vent) will
require the maximum heat removal
capacity, in Btu/hr, to cool the process
vent stream to a temperature that, upon
calculation of HAP concentration, will
yield  the required removal efficiency for
the entire cycle. The calculation of
maximum heat  load shall be based on
the emission profile described in
paragraph (c) (3) (i) (B) (3) of this section
that will allow calculation of sensible
and latent heat loads.
  (ii) The concentration of either TOC
(minus methane or ethane) or total
organic HAP (of the HAP of concern)
shall be calculated according to
paragraph (c)(3)(ii)(A) or (B) of this
section.
  (A) The TOC concentration (CToc) is
the sum of the concentrations of the
individual components and  shall be
computed for each run using Equation
2:
  r =
  *-c  *
             17.9
          20.9-%O
                   2d
[Equation 3]
  CTOC = S             [Equation 2]
         0=0
Where:
CTOC = Concentration of TOC (minus
    methane and ethane), dry basis,
    parts per million by volume.
Cj, = Concentration of sample
    components j of sample i, dry basis,
    parts per million by volume.
n = Number of components in the
    sample.
x = Number of samples in the sample
    run.
  (B) The total organic HAP
concentration (CHAP) shall be computed
according to Equation 2, except that
only the organic HAP species shall be
summed.
  (iii) The concentration of TOC or total
organic HAP shall be corrected to 3
percent oxygen if a combustion device
is used.
  (A) The emission rate correction
factor or excess air, integrated sampling
and analysis procedures of Method 3B
of 40 CFR part 60, appendix A shall be
used to determine the oxygen
concentration (%02d). The samples shall
be taken during the same time that the
TOC (minus methane or ethane) or total
organic HAP samples are taken.
  (B) The concentration corrected to 3
percent oxygen shall be  computed using
Equation 3, as follows:
 Where:
 Cc = Concentration of TOC or organic
    HAP corrected to 3 percent oxygen,
    dry basis, parts per million by
    volume.
 Cm = Concentration of TOC (minus
    methane and ethane) or organic
    HAP, dry basis, parts per million by
    volume.
 %02d = Concentration of oxygen, dry
    basis, percent by volume.
  (4) Test methods. When testing is
 conducted to measure emissions from
 an affected source, the test methods
 specified in paragraphs (c)(4)(i) through
 (iv) of this section shall be used, as
 applicable.
  (i) For sample and velocity traverses,
 Method 1 or 1A of appendix A of part
 60 shall be used, as appropriate, except
 that references to paniculate matter in
 Method 1A do not apply for the
 purposes of this subpart.
  (ii) The velocity and gas volumetric
 flow rate shall be determined using
 Method 2, 2A, 2C, or  2D of 40 CFR part
 60, appendix A, as appropriate.
  (iii) The concentration measurements
 shall be determined using the methods
 described in paragraphs (c)(4)(iii) (A)
 through (C) of this section.
  (A) Method 18 of appendix A of part
 60 may be used to determine  the HAP
 concentration in any control device
 efficiency determination.
  (B) Method 25 of appendix A of part
 60 may be used to determine  total
 gaseous nonmethane  organic
 concentration for control efficiency
 determinations in combustion devices.
  (C) Method 25 A of appendix A  of part
 60 may be used to determine  the HAP
 or TOC concentration for control device
 efficiency determinations under the
 conditions specified in Method 25 of
 appendix A of part 60 for direct
 measurements of an effluent with a
 flame ionization detector, or in
 demonstrating compliance with the 20
 ppmv standard, the instrument shall be
 calibrated on methane or the
 predominant HAP. If  calibrating on the
 predominant HAP, the use of Method
 25A of appendix A of part 60 shall
 comply with paragraphs (c)(4)(iii)(C) (1)
through (3) of this section.
  (1) The organic HAP used as the
 calibration gas for Method 25A of
appendix A of part 60 shall be the single
 organic HAP representing the largest
percent by volume.
  (2) The use of Method 25 A, 40 CFR
part 60, appendix A, is acceptable if the
response from the high level calibration
gas is at least 20 times the standard
deviation of the response from the zero
calibration gas when the instrument is
zeroed on the most sensitive scale.
  (3) The span value of the analyzer
shall be less than 100 ppmv.
  (iv) Alternatively, any other method
or data that have been validated
according to the applicable procedures
in 40 CFR part 63, appendix A, Method
301 may be used.
  (5) Calculation of percent reduction
efficiency. The following procedures
shall be used to calculate percent
reduction efficiency:
  (i) Test duration shall be as specified
in paragraphs (c)(3)(i) (A) through (B) of
this section, as appropriate.
  (ii) The mass rate of either TOC
(minus methane and ethane) or total
organic HAP of the HAP of concern (E,,
E0) shall be computed.
  (A) The following equations shall be
used:
                                     [Equation 4]
                                      [Equation 5]
                                                                                        COJMOJ
             Where:
             Cy, Co, = Concentration of sample
                 component j of the gas stream at the
                 inlet and outlet of the combustion,
                 recovery, or recapture device,
                 respectively, dry basis, parts per
                 million by volume.
             E,, Eo = Mass rate of TOC (minus
                 methane and ethane) or total
                 organic HAP at the inlet and outlet
                 of the combustion, recovery, or
                 recapture device, respectively, dry
                 basis, kilogram per hour.
             My, MOJ = Molecular weight of sample
                 component j of the gas stream at the
                 inlet and outlet of the combustion,
                 recovery, or recapture device,
                 respectively, gram/gram-mole.
             Qi, Qo = Flow rate of gas stream at the
                 Inlet and outlet of the combustion,
                 recovery, or recapture device,
                 respectively, dry standard cubic
                 meter per minute.
             K2 m Constant, 2.494 x 10 -« (parts per
                 million) ~ ' (gram-mole per  standard
                 cubic meter) (kilogram/gram)
                 (minute/hour), where standard
                 temperature (gram-mole per
                 standard cubic meter) is 20 °C.
               (B) Where the mass rate of TOC is
             being calculated, all organic compounds
             (minus methane and ethane) measured
             by Method 18 of 40 CFR part 60,
             appendix A are summed using
             Equations 4 and 5 in paragraph
             (c) (5) (ii)(A) of this section.

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Federal  Register/Vol. 64, No. 104/Tuesday, June  1, 1999/Rules and Regulations
  (C) Where the mass rate of total
 organic HAP is being calculated, only
 the organic HAP species shall be
 summed using Equations 4 and 5 in
 paragraph (c)(5)(ii)(A) of this section.
  (iii) The percent reduction in TOC
 (minus methane and ethane) or total
 organic HAP shall be calculated using
 Equation 6 as follows:

  . R=Ei~B°(100)    [Equation 6]
          t,
 Where:
  R « Control efficiency of combustion,
 recovery, or recapture device, percent.
  E, = Mass rate of TOC (minus methane
 and ethane) or total  organic HAP at the
 inlet to the combustion, recovery, or
 recapture device as calculated under
 paragraph (c)(5)(ii) of this section,
 kilograms TOC per hour or kilograms
 organic HAP per hour.
 Eo = Mass rate of TOC (minus methane
    and ethane) or total organic HAP at
    the outlet of the combustion,
    recovery, or recapture device, as
    calculated under paragraph (c)(5)(ii)
    of this section, kilograms TOC per
    hour or kilograms organic HAP per
    hour.
  (iv) If the process  vent stream entering
 a boiler or process heater with a design
 capacity less than 44 megawatts is
 introduced with the combustion air or
 as a secondary fuel,  the weight-percent
 reduction of total organic HAP or TOC
 (minus methane and ethane) across the
 device shall be determined by
 comparing the TOC  (minus methane
 and ethane) or total  organic HAP in all
 combusted process vent streams and
 primary and secondary fuels with the
 TOC (minus methane and ethane) or
 total organic HAP, respectively, exiting
 the combustion device.
  (d)  Determination of uncontrolled
 organic HAP emissions. For each
 process vent at a PMPU that is
 complying with the process vent control
 requirements in §63.1425(b)(l)(i),
or (d) (2) using a combustion, recovery,
or recapture device, the owner or
operator shall determine the
                        uncontrolled organic HAP emissions in
                        accordance with the provisions of this
                        paragraph, with the exceptions noted in
                        paragraph (d)(l) of this section. The
                        provisions of §63.1427(c)(l) shall be
                        used to calculate uncontrolled epoxide
                        emissions prior to the onset of an
                        extended cook out.
                          (1) Exemptions.  The owner or
                        operator is not required to determine
                        uncontrolled organic HAP emissions for
                        process vents in a  PMPU if the
                        conditions in paragraph (d)(l)(i), (ii), or
                        (iii) of this section are met.
                          (i) For PMPUs where all process vents
                        subject to the epoxide emission
                        reduction requirements of §63.1425(b)
                        are controlled at all times using a
                        combustion, recovery, or recapture
                        device, or extended cookout, the owner
                        or operator is not required to determine
                        uncontrolled epoxide emissions.
                          (ii) For PMPUs where the
                        combination of process vents from batch
                        unit operations associated with the use
                        of nonepoxide organic HAP to make or
                        modify the product is subject to the
                        Group 1 requirements of §63.1425(c)(l),
                        the owner or operator is not required to
                        determine uncontrolled nonepoxide
                        organic HAP emissions for those process
                        vents if every process vent from a batch
                        unit operation  associated with the use of
                        nonepoxide organic HAP to make or
                        modify the product in the PMPU is
                        controlled at all times using a
                        combustion, recovery, or recapture
                        device.
                          (iii) For PMPUs  where all process
                        vents associated with catalyst extraction
                        that are subject to  the organic emission
                        reduction requirements of
                        § 63.1425(d)(2) are controlled at all
                        times using a combustion, recovery, or
                        recapture device, the owner or operator
                        is not required to determine
                        uncontrolled organic HAP emissions for
                        those process vents.
                          (2) Process vents from batch unit
                        operations.  The uncontrolled organic
                        HAP emissions from an individual
                        batch cycle for each process vent from
                        a batch unit operation shall be
                        determined using the procedures in the
                        NESHAP for Group I Polymers and
Resins (40 CFR part 63, subpart U),
§63.488(b)(l) through (9). Uncontrolled
emissions from process vents from batch
unit operations shall be determined
after the exit from the batch unit
operation but before any recovery
device.
  (3) Process vents from continuous unit
operations. The uncontrolled organic
HAP emissions for each process vent
from a continuous unit operation in a
PMPU shall be determined at the
location specified in paragraph (d)(3)(i)
of this section, using the procedures in
paragraph (d)(3)(ii) of this section.
  (i) For process vents subject to either
the provisions for epoxide emissions in
§ 63.1425 (b) or the provisions for
organic HAP emissions from catalyst
extraction in § 63.1425(d), uncontrolled
emissions shall be determined after the
exit from the continuous unit operation
but before any recovery device.
  (ii) The owner or operator shall
determine the hourly uncontrolled
organic HAP emissions from each
process vent from a continuous unit
operation in accordance with paragraph
(c)(4)(ii) of this section, except that the
emission rate shall be determined at the
location specified in paragraph (d)(2){i)
of this section.
  (e) Determination of organic HAP
emission reduction fora PMPU. (1) The
owner or operator shall determine the
organic HAP emission reduction for
process vents in a PMPU that are
complying with § 63.1425(b)(l)(i),
(b)(2)(ii),(c)(l)(ii), or (d)(2) using
Equation 7. The organic HAP emission
reduction shall be determined for each
group of process vents subject to the
same paragraph (i.e., paragraph (b), (c),
or (d)) of §63.1425. For instance,
process vents that emit epoxides are
subject to paragraph (b) of §63.1425.
Therefore, if the owner or operator of an
existing affected  source is complying
with the 98 percent reduction
requirement in §63.1425(b)(2)(ii), the
organic HAP (i.e., epoxide) emission
reduction shall be determined for the
group of vents in a PMPU that are
subject to this paragraph.
                                RED,
                                    'PMPU ~
                                                 * 100    [Equation 7]
Where:

  REDpv,pu = Organic HAP emission
reduction for the group of process vents
                        subject to the same paragraph of
                        §63.1425, percent.
  Eunc.! = Uncontrolled organic HAP
emissions from process vent i that Is
controlled using a combustion,

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               Federal Register/Vol. 64, No.  104/Tuesday, June 1, 1999/Rules and Regulations
                                                                     29455
recovery, or recapture device, or
extended cookout, kg/batch cycle for
process vents from batch unit
operations, kg/hr for process vents from
continuous unit operations.
n = Number of process vents in the
    PMPU that are subject to the same
    paragraph of §63.1425 and that are
    controlled using a combustion,
    recovery, or recapture device, or
    extended cookout.
  Ri'= Control efficiency of the
combustion, recovery, or recapture
device, or extended cookout, used to
control organic HAP emissions from
vent i,  determined in accordance with
paragraph (e) (2) of this section.
  Euncj = Uncontrolled organic HAP
emissions from process vent j that is not
controlled using a combustion,
recovery, or recapture device, kg/batch
cycle for process vents from batch unit
operations, kg/hr for process vents from
continuous unit operations.
m = Number of process vents in the
    PMPU that are subject to the same
    paragraph of § 63.1425 and that are
    not controlled using a combustion,
    recovery, or recapture device.
  (2) The control efficiency, Ri, shall be
assigned as specified below in
paragraph (e)(2)(i), (ii),  (Hi), or (iv) of
this section.
  (i) If the process vent is controlled
using a flare (and the owner or operator
has not previously obtained approval to
assume a control efficiency greater than
98 percent in accordance with § 63.6(g))
or a combustion device specified  in
paragraph (b)(l), (2), (4), or (5) of this
section, and a performance test has not
been conducted, the control efficiency
shall be assumed to be 98 percent.
  (ii) If the process vent is controlled
using a combustion, recovery, or
recapture device for which a
performance test has been conducted in
accordance with the provisions of
paragraph (c) of this section, or for
which a performance test that meets the
requirements of paragraph (b)(3) of this
section has been previously performed,
the control efficiency shall be the
efficiency determined by the
performance test.
   (iii) If epoxide emissions from the
process vent are controlled using
extended cookout, the control efficiency
shall be the efficiency determined in
accordance with § 63.1427(e).
   (iv) If the process vent is controlled
using a flare, and the owner or operator
has obtained approval to assume  a
control efficiency greater than 98
percent in accordance with § 63.6(g), the
control efficiency shall be the efficiency
approved in accordance with § 63.6(g).
   (f) Design evaluation. A design
evaluation is required for those control
techniques that receive less than 10 tons
per year (9.1 megagrams per year) of
uncontrolled organic HAP emissions
from one or more PMPU, if the owner
or operator has chosen not to conduct a
performance test for those control
techniques in accordance with
paragraph (b) (6) of this section. The
design evaluation shall include
documentation demonstrating that the
control technique being used achieves
the required control efficiency under
worst-case conditions, as determined
from the emission profile described in
§63.1426(c)(3)(i)(B)(3>(fl.
  (1) Except for ECO whose design
evaluation is presented in paragraph
(f)(2) of this section, to demonstrate that
a control technique meets the required
control efficiency, a design evaluation
shall address the composition and
organic HAP concentration of the vent
stream, immediately preceding the use
of the control technique. A design
evaluation shall also address other vent
stream characteristics and control
technique operating parameters, as
specified in any one of paragraphs
(f)(l)(i) through (vi)  of this section,
depending on the type of control
technique that is used. If the vent stream
is not the only inlet to the control
technique, the owner or operator shall
also account for all other vapors, gases,
and liquids, other than fuels, received
into the control technique from one or
more PMPUs, for purposes of the
efficiency determination.
   (i) For an enclosed combustion
technique used to comply with the
provisions of §63.1425(b)(l), (c)(l), or
(d), with a minimum residence time of
0.5 seconds and a minimum
temperature of 760° C, the design
evaluation shall document that these
conditions exist.
   (ii) For a combustion control
technique that does not satisfy the
criteria in paragraph (f)(l)(i) of this
section, the design evaluation shall
document the control efficiency and
address the characteristics listed in
paragraphs (f)(l)(ii)(A) through (C) of
this section, depending on the type of
control technique.
   (A) For a thermal vapor incinerator, in
the design evaluation the owner or
operator shall consider the autoignition
temperature of the organic HAP, shall
consider the vent stream flow rate, and
shall establish the design minimum and
average temperatures in the combustion
zone and the combustion zone residence
time.
   (B) For a catalytic vapor incinerator,
in the design evaluation the owner or
operator shall consider the vent stream
flow rate and shall establish the design
minimum and average temperatures
across the catalyst bed inlet and outlet
  (C) For a boiler or process heater, in
the design evaluation the owner or
operator shall consider the vent stream
flow rate; shall establish the design
minimum and average flame zone
temperatures and combustion zone
residence time; and shall describe the
method and location where the vent
stream is introduced into the flame
zone.
  (iii) For a condenser, in the design
evaluation the owner or operator shall
consider the vent stream flow rate,
relative humidity, and temperature, and
shall establish the design outlet organic
HAP compound  concentration level,
design average temperature of the
exhaust vent stream, and the design
average temperatures of the coolant
fluid at the condenser inlet and outlet.
The temperature of the gas stream
exiting the condenser shall be measured
and used to establish the outlet organic
HAP concentration.
  (iv) For a carbon adsorption system
that regenerates the carbon bed directly
onsite as part of the control technique
(such as a fixed-bed adsorber), in the
design evaluation the owner or operator
shall consider the vent stream flow rate,
relative humidity, and temperature, and
shall establish the design exhaust vent
stream organic compound concentration
level, adsorption cycle time, number
and capacity of carbon beds, type and
working capacity of activated carbon
used for the carbon beds, design  total
regeneration stream mass or volumetric
flow over the period of each complete
carbon bed regeneration cycle, design
carbon bed temperature after
regeneration, design carbon bed
regeneration time, and design service
life of the carbon. For vacuum
desorption,  the pressure drop shall also
be included.
  (v) For a carbon adsorption system
that does not regenerate the carbon bed
directly onsite as part of the control
technique (such as a carbon canister), in
the design evaluation the owner  or
operator shall consider the vent stream
mass or volumetric flow rate, relative
humidity, and temperature, and shall
establish the design exhaust vent stream
organic compound concentration level,
capacity of the carbon bed, type and
working capacity of activated carbon
used for the carbon bed, and design
carbon replacement Interval based on
the total carbon working capacity of the
control technique and source operating
schedule.
  (vi) For a scrubber, in the design
evaluation the owner or operator shall
consider the vent stream composition,
constituent concentrations, liquid-to-

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vapor ratio, scrubbing liquid flow rate
and concentration, temperature, and the
reaction kinetics of the constituents
with the scrubbing liquid. The design
evaluation shall establish the design
exhaust vent stream organic compound
concentration level and shall include
the additional information in
paragraphs (f)(l)(vi) (A) and (B) of this
section for trays and a packed column
scrubber.
  (A) Type and total number of
theoretical and actual trays.
  (B) Type and total surface area of
packing for entire column and for
individual packed sections, if the
column contains more than one packed
section.
  (2) For ECO, the design evaluation
shall establish the minimum duration
(time) of the ECO, the maximum
pressure at the end of the ECO, or the
maximum epoxide concentration in the
reactor liquid at the end of the ECO for
each product class.

§ 63.1427  Process vent requirements for
processes using extended cookout as an
epoxide emission reduction technique.
  (a) Applicability of extended cookout
requirements. Owners or operators of
affected sources that produce polyether
polyols using epoxides, and that are
using ECO as a control technique to
reduce epoxide emissions in order to
comply with percent emission reduction
requirements in §63.1425(b)(l)(i) or
(b) (2) (ii) shall comply with the
provisions of this  section. The owner or
operator that is using ECO in order to
comply with the emission factor
requirements in §63.1425(b)(l)(iii) or
§63.1425(b)(2)(iv) shall demonstrate
that the specified emission factor is
achieved by following the requirements
in §63.1431. If additional control
devices are used to further reduce the
HAP emissions from a process vent
already controlled by ECO, then the
owner or operator shall also comply
with the testing, monitoring,
recordkeeping, and reporting
                        requirements associated with the
                        additional control device, as specified
                        in §§63.1426, 63.1429, and 63.1430,
                        respectively.
                          (1) For each product class, the owner
                        or operator shall determine the batch
                        cycle percent epoxide emission
                        reduction for the most difficult to
                        control product in the product class,
                        where the most difficult to control
                        product is the polyether polyol that is
                        manufactured With the slowest pressure
                        decay curve.
                          (2) The owner or operator may
                        determine the batch cycle percent
                        epoxide emission reduction by directly
                        measuring the concentration of the
                        unreacted epoxide, or by using process
                        knowledge, reaction kinetics, and
                        engineering knowledge, in accordance
                        with paragraph (a)(2)(i) of this section.
                          (i) If the owner or operator elects to
                        use any method other than direct
                        measurement, the epoxide
                        concentration shall be determined by
                        direct measurement for one product
                        from each product class and compared
                        with the epoxide concentration
                        determined using the selected
                        estimation method, with the exception
                        noted in paragraph (a)(2)(ii) of this
                        section. If the difference between the
                        directly determined epoxide
                        concentration and the calculated
                        epoxide concentration is less than 25
                        percent, then the selected estimation
                        method will be considered to be an
                        acceptable alternative to direct
                        measurement for that class.
                          (ii) If uncontrolled epoxide emissions
                        prior to the end of the ECO are less than
                        10 tons per year (9.1 megagrams per
                        year), the owner or operator is not
                        required to perform the direct
                        measurement required in paragraph
                        (a)(2)(i) of this section. Uncontrolled
                        epoxide emissions prior to the end of
                        the ECO shall be determined by the
                        procedures in paragraph (d) (1) of this
                        section.
  (b) Define the end of epoxide feed.
The owner or operator shall define the
end of the epoxide feed In accordance
with paragraph (b)(l) or (2) of this
section.
  (1) The owner or operator shall
determine the concentration of epoxide
in the reactor liquid at the point in time
when all epoxide has been added to the
reactor and prior to any venting. This
concentration shall be determined in
accordance with the procedures in
paragraph (f)(l)(i) of this section.
  (2) If the conditions in paragraphs
(b)(2)(i), (ii), and (iii) of this section are
met, the end of the epoxide feed may be
defined by the reactor epoxide partial
pressure at the point in time when all
epoxide reactants have been added  to
the reactor. This reactor epoxide partial
pressure shall be determined in
accordance with the procedures in
paragraph (g) of this section.
  (i) No epoxide is emitted before the
end of the ECO;
  (ii) Extended cookout is the only
control technique to reduce epoxide
emissions; and
  (iii) The owner or operator elects to
determine the percent epoxide  emission
reduction for the ECO using reactor
epoxide partial pressure in accordance
with paragraph (e)(2) of this section.
  (c) Define the onset of the ECO. The
owner or operator shall calculate the
uncontrolled emissions for the  batch
cycle by calculating the epoxide
emissions, if any, prior to the onset of
the ECO, plus the epoxide emissions at
the onset of the ECO. The onset of the
ECO is defined as the point in time
when the combined unreacted epoxide
concentration in the reactor liquid is
equal to 25 percent of the concentration
of epoxides at the end of the epoxide
feed, which was determined in
accordance with paragraph (b) of this
section.
  (1) The uncontrolled epoxide
emissions for the batch cycle shall be
determined using Equation 8.
                                                                                [Equation 8]
Where:
  .u = Uncontrolled epoxide emissions
    at the onset of the ECO, kilograms
    per (kg/)batch.
  q.i = Concentration of epoxide in the
    reactor liquid at the onset of the
    ECO, which is equal to 25 percent
    of the concentration of epoxide at
    the end of the epoxide feed,
    determined in accordance with
                            paragraph (b)(l) of this section,
                            weight percent.
                        Viiq.i = Volume of reactor liquid at the
                            onset of the ECO. liters.
                        Diiq,i = Density of reactor liquid, kg/liter.
                        Cv«P,i = Concentration of epoxide in the
                            reactor vapor space at the onset of
                            the ECO, determined in accordance
                            with paragraph (f)(2) of this section,
                            weight percent.
                        Vv.p,, = Volume of the reactor vapor
                            space at the onset of the ECO, liters.
Dv.p.i = Vapor density of reactor vapor
    space at the onset of the ECO, kg/
    liter.
  Ecpox.bcf = Epoxide emissions that
occur prior to the onset of the ECO,
determined in accordance with the
provisions of §63.1426(d), kilograms.

  (2) If the conditions in paragraphs
(b)(2)(i), (ii), and (iii) of this section are
met, the owner or operator may define
the onset of the  ECO as the point in time

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                                                                      29457
when the reactor epoxide partial
pressure equals 25 percent of the reactor
epoxide partial pressure at the end of
the epoxide feed, and is not required to
determine the uncontrolled epoxide
emissions in accordance with paragraph
(c)(l) of this section.
  (d) Determine emissions at the end of
the ECO. The owner or operator shall
calculate the epoxide emissions at the
end of the ECO, where the end of the
ECO is defined as the point immediately
before the time when the reactor
contents are emptied and/or the reactor
vapor space purged to the atmosphere or
to a combustion, recovery, or recapture
device.
   (1) The epoxide emissions at the end
of the ECO shall be determined using
Equation 9.
                           EC.E =(c,iq,f)(v)iq,f)(DHqif) + (Cvlp,f)(vvipif)(Dv^f)    [Equation 9]
Where:
EC.E = Epoxide emissions at the end of
    the ECO, kg.
Ci,q,f = Concentration of epoxide in the
    reactor liquid at the end of the ECO,
    determined in accordance with
    paragraph (f) (1) of this section,
    weight percent.
Vhq.t = Volume of reactor liquid at the
    end of the ECO, liters.
Di,q,t = Density of reactor liquid, kg/liter.
Cvap.t = Concentration of epoxide in the
    reactor vapor space as it exits the
    reactor at the end of the ECO,
    determined in accordance with
    paragraph (f)(2) of this section,
    weight percent.
Vv.p.f = Volume of the reactor vapor
    space as it exits the reactor at the
    end of the ECO, liters.
Dv.p.f = Vapor density of reactor vapor
    space at the end of the ECO, kg/
    liter.
  (2) If the conditions in paragraphs
(b)(2)(i), (ii), and (iii) of this section are
met, the owner or operator may
determine the reactor epoxide partial
pressure at the end of the ECO instead
of determining the uncontrolled epoxide
emissions at the end of the ECO in
accordance with paragraph (d)(l) of this
section.
  (e) Determine percent epoxide
emission reduction. (1) The owner or
operator shall determine the percent
epoxide emission reduction for the
"batch cycle using Equation 10.

                                                                            100    [Equation 10]
Where:
Rbatchcycic = Epoxide emission reduction
    for the batch cycle, percent.
EC,E = Epoxide emissions at the end of
    the ECO determined in accordance
    with paragraph (d)(l) of this
    section, kilograms.
Raddon.i = Control efficiency of
    combustion, recovery, or recapture
    device that is used to control
    epoxide emissions after the ECO,
    determined in accordance with the
    provisions of §63.1426(c), percent.
Ec.o = Epoxide emissions that occur
    before the end of the ECO,
    determined in accordance with the
    provisions of § 63.1426 (d),
    kilograms.
Raddonj = Control efficiency of
    combustion, recovery, or recapture
    device that is used to control
    epoxide emissions that occur before
    the end of the ECO, determined in
    accordance with the provisions of
    §63.1426(c), percent.
EC.U = Uncontrolled epoxide emissions
    determined in accordance with
    paragraph (c)(l) of this section,
    kilograms.
  (2) If the conditions in paragraphs
(b)(2)(i), (ii), and (iii) of this section are
met, the owner or operator may
determine the percent epoxide emission
reduction for  the batch cycle using
reactor epoxide partial pressure and
Equation 1 1 , instead of using the
procedures in paragraph (e)(l) of this
section.
Where:
          = Epoxide emission
reduction for the batch cycle, percent.
  Pcpox.i = Reactor epoxide partial
pressure at the onset of the ECO,
determined in accordance with
paragraph (c) (2) of this section, mm Hg.
  Pcpox.f = Reactor epoxide partial
pressure at the end of the ECO,
determined in accordance with
paragraph (c) (2) of this section, mm Hg.
  (f) Determination of epoxide
concentrations. The owner or operator
shall determine the epoxide
concentrations in accordance with the
procedures in this paragraph.
  (1) The owner or operator shall
determine the concentration of epoxide
in the reactor liquid using either direct
measurement in accordance with
paragraph (f)(l)(i) of this section, or
reaction kinetics in accordance with
paragraph (f)(l)(ii) of this section. An
owner or operator may also request to
use an alternative methodology in
accordance with paragraph (f)(l)(iii)  of
this section.
  (i) The owner or operator shall submit
a standard operating procedure for
obtaining the liquid sample, along with
the test method used to determine the
epoxide concentration. This information
shall be submitted in the Precompliance
Report.
  (ii) Determine the epoxide
concentration in the reactor liquid using
Equation 12.  [Equation 12]

    Ciiq,f = Clkl,ie-kt     [Equation 12]

  Ciiq.f = Concentration of epoxide in the
reactor liquid at the end of the time
period, weight percent.
  Ci,q., = Concentration of epoxide in the
reactor liquid at the beginning of the
time period, weight percent.
k = Reaction rate constant, 1/hr.
t = Time, hours.
  Note: This equation assumes a first order
reaction with respect to epoxide
concentration, where:
  (iii) If the owner/operator deems that
the methods listed in paragraphs (f)(l)(i)
and (ii) of this section are not
appropriate for the reaction system for
a PMPU, then the owner/operator may
submit a request for the use of an
alternative method.
  (2) The owner or operator shall
determine the concentration of epoxide
in the reactor vapor space using either
direct measurement in accordance with
paragraph (f)(2)(i) of this section, or  by
engineering estimation in accordance

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Federal Register/Vol.  64, No.  104/Tuesday,  June 1, 1999/Rules and Regulations
 with paragraph (f)(2)(ii) of this section.
 An owner or operator may also request
 to use an alternative methodology in
 accordance with paragraph (f)(2)(iii) of
 this section.
   (i) The owner or operator shall take
 two representative samples from a bleed
 valve off the reactor's process vent. The
 owner or operator shall determine the
 total epoxide concentration using 40
 CFR part 60, appendix A, Method 18.
   (ii) Determine the epoxide
 concentration in the vapor space using
 Raoult's Law or another appropriate
 phase equilibrium equation and the
 liquid epoxide concentration,
                        determined in accordance with
                        paragraph (f)(l) of this section.
                          (iii) If the owner/operator deems that
                        the methods listed in paragraphs (f)(l)(i)
                        and (ii) of this section are not
                        appropriate for the reaction system for
                        a PMPU, then the owner/operator may
                        submit a request for the use of an
                        alternative method.
                          (g) Determination of pressure. The
                        owner or operator shall determine the
                        total pressure of the system using
                        standard pressure measurement devices
                        calibrated according to the
                        manufacturer's specifications or other
                        written procedures that provide
                        adequate assurance that the equipment
would reasonably be expected to
monitor accurately.
   (h) Determination if pressure decay
curves are similar. The owner or
operator shall determine the pressure
decay curve as defined in §63.1423.
Products with similar pressure decay
curves constitute a product class. To
determine if two pressure decay curves
are similar when the pressure decay
curves for products have different
starting and finishing pressures, the
owner or operator shall determine the
time when the pressure has fallen to
half its total pressure by using Equation
13:
                               Time (Phalf') ~ Time (Phajfj)< 20 % TAVG PAVO    [Equation 13]
 Where:
 Phait' = Half the total pressure of the
     epoxide for product 1.
 Time (Phai» 1) = Time when the pressure
     has fallen to half its total pressure
     for product 1.
 Phau 2 = Half the total pressure of the
     epoxide for product 2.
 Time (Phaif2) = Time when the pressure
     has fallen to half its total pressure
     for product 2.
 TAVG PAVO = The average time to
     cookout to the point where the
     epoxide pressure is 25 percent of
     the epoxide pressure at the end of
     the feed step for products 1 and 2.
   (i) ECO monitoring requirements. The
 owner or operator using ECO shall
 comply with the monitoring
 requirements of this paragraph to
 demonstrate continuous compliance
 with this subpart. Paragraphs (i)(l)
 through (3) of this section address
 monitoring of the extended cookout.
   (1) To comply with the provisions of
 this section, the owner or operator shall
 monitor one of the parameters listed in
 paragraphs (i)(l)(i) through (iii) of this
 section, or may utilize the provision in
 paragraph (i)(l)(iv) of this section.
   (i) Time from the end of the epoxide
 feed;
   (ii) The epoxide partial pressure in
 the closed reactor;
   (iii) Direct measurement of epoxide
 concentration in the reactor liquid at  die
 end of the ECO, when die reactor liquid
 is still in the reactor, or after the reactor
 liquid has been transferred to another
 vessel; or
   (iv) An owner or operator may submit
a request to the Administrator to
monitor a parameter other than the
parameters listed in paragraphs (i)(l)(i)
 through (iii) of this section, as described
in§63.1439(f).
                          (2) During the determination of the
                        percent epoxide emission reduction in
                        paragraphs (b) through (e) of this
                        section, the owner or operator shall
                        establish, as a level that shall be
                        maintained during periods of operation,
                        one of the parameters in paragraphs
                        (i)(2)(i) through (iii) of this section, or
                        may utilize the procedure in paragraph
                        (i)(2)(iv) of this section, for each product
                        class.
                          (i) The time from the end of the
                        epoxide feed to the end of the ECO;
                          (ii) The reactor epoxide partial
                        pressure at the end of the ECO;
                          (iii) The epoxide concentration in the
                        reactor liquid at the end of the ECO,
                        when the reactor liquid is still in the
                        reactor, or after the reactor liquid has
                        been transferred to another vessel; or
                          (iv) An owner or operator may submit
                        a request to the Administrator to
                        monitor a parameter other than the
                        parameters listed in paragraphs (i) (2) (i)
                        through (iii) of this section, as described
                        in§63.1439(f).
                          (3) For each batch cycle where ECO is
                        used to reduce epoxide emissions, the
                        owner or operator shall record the value
                        of the monitored parameter at the end
                        of the ECO. This parameter is then
                        compared with the level established in
                        accordance with paragraph (i)(2) of this
                        section to determine if an excursion has
                        occurred. An ECO excursion is defined
                        as one of the situations described in
                        paragraphs (i)(3)(i) through (v) of this
                        section.
                          (i) When the time from the end of the
                        epoxide feed to the end of die ECO is
                        less than the time established in
                        paragraph (i)(2)(i) of this section;
                          (ii) When die reactor epoxide partial
                        pressure at the end of the ECO is greater
                        than the partial pressure established in
                        paragraph (i)(2)(ii) of this section;
  (iii) When the epoxide concentration
in the reactor liquid at the end of the
ECO is greater dian die epoxide
concentration established in paragraph
(i)(2)(iii) of this section;
  (iv) When die parameter is not
measured and recorded at the end of the
ECO; or
  (v) When the alternative monitoring
parameter is outside the range
established under §63.1439(f) for proper
operation of the ECO as a control
technique.
  (j) Recordkeeping requirements. (1)
The owner or operator shall maintain
die records specified in paragraphs
(j)(l)(i) and (ii) of this section, for each
product class. The owner or operator
shall also maintain the records related
to die initial determination of die
percent epoxide emission reduction
specified in paragraphs  (j)(l)(iii)
through (x) of this section, as applicable,
for each product class.
  (i) Operating conditions of the
product class, including:
(A) Pressure decay curve;
(B) Minimum reaction temperature;
(C) Number of reactive hydrogens in die
    raw material;
(D) Minimum catalyst concentration;
(E) Ratio of EO/PO at the end of die
    epoxide feed; and
(F) Reaction conditions, including the
    size of the reactor or batch.
  (ii) A listing of all products in die
product class, along with the
information specified in paragraphs
(j)(l)(i)(A) through (F) of this section, for
each product.
  (iii) The concentration of epoxide at
the end of the epoxide feed, determined
in accordance with paragraph (b)(l) of
this section.
  (iv) The concentration of epoxide at
die onset of die ECO, determined in

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                                                                      29459
accordance with paragraph (c) of this
section.
  (v) The uncontrolled epoxide
emissions at the onset of the ECO,
determined in accordance with
paragraph (c)(l) of this section. The
records shall also include all the
background data,  measurements, and
assumptions used to calculate the
uncontrolled epoxide emissions.
  (vi) The epoxide emissions at the end
of the ECO, determined in accordance
with paragraph (d)(l)  of this section.
The records shall also include all the
background data,  measurements, and
assumptions used to calculate the
epoxide emissions.
  (vii) The percent epoxide reduction
for  the batch cycle, determined in
accordance with paragraph (e)(l) of this
section. The records shall also  include
all the background data, measurements,
and assumptions  used to calculate the
percent reduction.
  (viii) The parameter level, established
in accordance with paragraph (i) (3) of
this section.
  (ix) If epoxide emissions occur before
the end of the ECO, the owner  or
operator shall maintain records of the
time and duration of all such emission
episodes, that occur during the initial
demonstration of batch cycle efficiency.
  (x) If the conditions in  paragraphs
(b)(2)(i), (ii), and  (iii) of this section are
met, the owner or operator is not
required to maintain the records
specified  in paragraphs (j)(l)(iii)
through (iv) of this section, but shall
maintain the records specified in
paragraphs (j)(l)(x)(A), (B), and (C) of
this section.
  (A) The reactor epoxide partial
pressure at the following times:
  (1) At end of the epoxide feed,
determined in accordance with
paragraph (b)(2) of this section;
  (2) At the onset of the ECO,
established in accordance with
paragraph (c) (2) of this section; or
   (3) At the end of the ECO, determined
in accordance with paragraph  (d)(2) of
this section.
   (B) The percent epoxide reduction for
the batch cycle, determined in
 accordance with  paragraph (e)(2) of this
 section. The records shall also include
 all the measurements and assumptions
 used to calculate the percent reduction.
   (C) The reactor epoxide partial
 pressure at the end of the ECO.
   (2) The owner  or operator shall
 maintain the records specified in
 paragraphs (j)(2)(i) through (iv) of this
 section.
   (i) For each batch cycle, the product
 being produced and the product class to
 which it belongs.
  (ii) For each batch cycle, the owner or
operator shall record the value of the
parameter monitored in accordance
with paragraph (i)(3) of this section.
  (iii) If a combustion, recovery, or
recapture device is used in conjunction
with ECO, the owner or operator shall
record the information specified in
§ 63.1430(d) and comply with the
monitoring provisions In § 63.1429.
  (iv) If a combustion, recovery, or
recapture device is used to reduce
emissions, the owner or operator shall
maintain the records specified in
§63.1430(d).
  (v) If epoxide emissions occur before
the end of the ECO, the owner or
operator shall maintain records of the
time and duration of all such emission
episodes.
  (k) Reporting requirements. The
owner or operator shall comply with the
reporting requirements in this
paragraph.
  (1) The information specified in
paragraphs (k)(l)(i) through (ii) of this
section shall be provided in the
Precompliance Report, as specified in
§63.1439(e)(4).
  (i) A standard operating procedure for
obtaining the reactor liquid sample and
a method that will be used to determine
the epoxide concentration in the liquid,
in accordance with paragraph (f)(l)(i) of
this section.
  (ii)  A request to monitor a parameter
other than those specified in paragraph
(i)(l)(i), (ii), or (iii) of this section, as
provided for in paragraph (i)(l)(iv) of
this section.
  (2)  The information specified in
paragraphs (k)(2)(i) through (iv) of this
section shall be provided in the
Notification of Compliance Status, as
specified in §63.1439(e)(5).
  (i) For each product class, the
information specified in paragraphs
(k)(2)(i)(A) through (C) of this section.
  (A) The operating conditions of this
product  class, as specified in paragraph
(j)(l)(i) of this section.
  (B) A list of all products in the
product  class.
  (C) The percent epoxide emission
reduction, determined in accordance
with  paragraph (e) of this section.
   (ii) The parameter for each product
class, as determined in accordance with
paragraph (i)(2) of this section.
   (iii) If a combustion, recovery, or
recapture device is used in addition to
ECO  to reduce emissions, the
information specified in §63.1430(g)(l).
   (iv) If epoxide  emissions occur before
the end of the ECO, a listing of the time
 and duration of all such emission
 episodes that occur during the initial
 demonstration of batch cycle efficiency.
   (3) The information specified in
 paragraphs (k)(3)(i) through (iii) of this
section shall be provided in the Periodic
Report, as specified in § 63.1439(e)(6).
  (i) Reports of each batch cycle for
which an ECO excursion occurred, as
defined in paragraph (i)(3) of this
section.
  (ii) Notification of each batch cycle
when the time and duration of epoxide
emissions before the end of the ECO,
recorded in accordance with paragraph
(|)(2)(iv) of this section, exceed the time
and duration of the emission episodes
during the initial epoxide emission
percentage reduction determination, as
recorded in paragraph (j)(l)(viii) of this
section.
  (iii) If a  combustion, recovery, or
recapture  device is used to reduce
emissions, the information specified in
§63.1430(h).
  (1) New  polyether polyol products. If
an owner  or operator wishes to utilize
ECO as a control option for a polyether
polyol not previously assigned to  a
product class arid reported to the
Agency in accordance with either
paragraph (k)(2)(i)(B), (l)(l)(ii), or
(l)(2)(iii) of this section, the owner or
operator shall comply with the
provisions of paragraph (1) (1) or (2) of
this section.
  (1) If the operating conditions of the
new polyether polyol are consistent
with the operating conditions for  an
existing product class, the owner  or
operator shall comply with the
requirements in paragraphs  (l)(l)(i) and
(ii) of this section.
  (i) The owner or operator shall  update
the list of products for the product class
required by paragraph (j)(l)(ii) of this
section, and shall  record the
information in paragraphs (j)(l)(i)(A)
through (F) of this section for the  new
product.
   (ii) Within 180 days after the
production of the  new polyether polyol,
the owner or operator shall submit a
report updating the product list
previously submitted for the product
class. This information may be
submitted along with the next Periodic
Report.
   (2) If the operating conditions of the
new polyether polyol do not conform
with the operating characteristics of an
existing product class, the owner or
operator shall establish a new product
class and shall comply with provisions
of  paragraphs (l)(2)(i) through (iii) of
this section.
   (i) The  owner or operator shall
establish  the batch cycle percent
epoxide emission reduction in
 accordance with paragraphs (b) through
 (g) of this section  for the product class.
    (ii) The owner or operator shall
 establish  the records specified in

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 paragraph (j)(l) of this section for the
 product class.
   (iii) Within 180 days of the
 production of the new polyether polyol,
 the owner or operator shall submit a
 report containing the information
 specified in paragraphs (k) (2) (i) and (ii)
 of this section.
   (m) Polyether polyol product changes.
 If a change in operation, as defined in
 paragraph (m)(l)  of this section, occurs
 for a polyether polyol that has been
 assigned to a product class and reported
 to the Agency in  accordance with
 paragraph (k)(2)(i)(B).  (l)(l)(ii), or
 (l)(2)(iii) of this section, the owner or
 operator shall comply  with the
 provisions of paragraphs (m)(2) through
 (3) of this section.
   (1) A change in operation for a
 polyether polyol  is defined as  a change
 in any one of the  parameters listed in
 paragraphs (m)(l)(i) through (ix) of this
 section.
   (i)  A significant change in reaction
 kinetics;
   (ii) Use of a different oxide reactant;
   (iii) Use of a different EO/PO ratio;
   (iv) A lower reaction temperature;
   (v) A lower catalyst feed on a mole/
 mole fraction OH basis;
   (vi) A shorter cookout;
   (vii) A lower reactor pressure;
   (viii)  A different type of reaction, (e.g.,
 a self-catalyzed vs. catalyzed reaction);
 or
   (ix) A marked change in reaction
 conditions (e.g., a markedly different
 liquid level).
   (2) If the operating conditions of the
 product after the change in  operation
 remain within the operation conditions
 of the product class to which the
 product was assigned, the owner or
 operator shall update the records
 specified in paragraphs (j)(l)(i)(A)
 through (F) of this section for the
 product.
   (3)  If the operating conditions of the
 product after the change in operation
 are outside of the  operating conditions
 of the product class to which the
 product was assigned, the owner or
 operator shall comply with the
 requirements in paragraph (m)(3)(i) or
 (ii) of this section, as appropriate.
  (i) If the new operating conditions of
 the polyether polyol are consistent with
 the operating conditions for another
 existing product class, the owner or
 operator shall comply with the
 requirements in paragraphs (m)(3)(i)(A)
 and (B) of this section.
  (A) The owner or operator shall
 update the list of products for the
product class that the product is
 leaving, and for the product class that
the product is entering, and shall record
the new information in paragraphs
                        (j)(l)(i)(A) through (F) of this section for
                        the product.
                          (B) Within 180 days after the change
                        in operating conditions for the polyether
                        polyol product, the owner or operator
                        shall submit a report updating the
                        product lists previously submitted for
                        the product class. This information may
                        be submitted along with the next
                        Periodic Report.
                          (ii) If the new operating conditions of
                        the polyether polyol product do not
                        conform with the operating
                        characteristics of an existing product
                        class, the owner or operator shall
                        establish a new  product class and shall
                        comply with provisions of paragraphs
                        (m)(3)(ii)(A) through (C) of this section.
                          (A) The owner or operator shall
                        establish the batch cycle percent
                        epoxide emission reduction in
                        accordance with paragraphs (b) through
                        (g) of this section for die product class.
                          (B) The owner or operator shall
                        establish the records specified in
                        paragraph (j)(l)  of this section for the
                        product class.
                          (C) Within 180 days of the change in
                        operating conditions for the polyether
                        polyol, the owner or operator shall
                        submit a report containing the
                        information specified in paragraphs
                        (k)(2)(i) and (ii) of this section.

                        § 63.1426  Process vent requirements for
                        group determination of PMPUs using a
                        nonepoxide organic HAP to make or modify
                        the product.
                          (a) Process vents from batch unit
                        operations. The  owner or operator shall
                        determine, for each PMPU located at an
                        affected source, if the combination of all
                        process vents from batch unit operations
                        that are associated with the use of
                        nonepoxide organic HAP to make or
                        modify the product is a Group 1
                        combination of batch process vents, as
                        defined in § 63.1423. The annual
                        uncontrolled nonepoxide organic HAP
                        emissions, determined in accordance
                        with paragraph (b) of this section, and
                        annual average flow rate, determined In
                        accordance with paragraph (c) of this
                        section, shall be  determined for all
                        process vents from batch unit operations
                        associated with the use of a nonepoxide
                        organic HAP to make or modify the
                        product, with the exception of those
                        vents specified in paragraph (i) of this
                        section, at the location after all
                        applicable control techniques have been
                        applied to reduce epoxide emissions in
                        accordance with paragraph (a)(l) or (2)
                        of this section.
                         (1) If the owner or operator is using
                        a combustion, recovery, or recapture
                        device to reduce epoxide emissions, this
                        location shall be at the exit of the
 combustion, recovery, or recapture
 device.
   (2) If the owner or operator is using
 ECO to reduce epoxide emissions, this
 location shall be at the exit from the
 batch unit operation. For the purpose of
 these determinations, the primary
 condenser operating as a reflux
 cordenser on a reactor or distillation
 column shall be considered part of the
 unit operation.
   (b) Determination of annual
 nonepoxide organic HAP emissions. The
 owner or operator shall determine, for
 each PMPU,  the total annual
 nonepoxide organic HAP emissions
 from the combination of all process
 vents from batch unit operations that are
 associated with the use of a nonepoxide
 organic HAP to make or modify the
 product in accordance with paragraphs
 (b)(l) and (2) of this section.
   (1) The annual nonepoxide organic
 HAP emissions for each process vent
 from a batch unit operation associated
 with the use  of a nonepoxide organic
 HAP to make or modify the product
 shall be determined using the batch
 process vent procedures in the NESHAP
 for Group I Polymers and Resins (40
 CFR part 63,  subpart U), §63.488(b).
   (2) The owner or operator shall sum
 the annual nonepoxide organic HAP
 emissions from all individual process
 vents from batch unit operations in a
 PMPU, determined in accordance with
 paragraph (b)(l)  of this section, to obtain
 the total nonepoxide organic HAP
 emissions from the combination of
 process vents associated with the use of
 a nonepoxide organic HAP to make or
 modify the product, for the PMPU.
   (c) Minimum emission level
 exemption. If the annual emissions of
 TOC or nonepoxide organic HAP from
 the combination of process vents from
 batch unit operations that are associated
 with the use of nonepoxide organic HAP
 to make or modify a polyether polyol for
 a PMPU are less  than 11,800 kg/yr, the
 owner or operator of that PMPU is not
 required to comply with the provisions
 in paragraphs (d) and (e) of this section.
  (d)  Determination of average now rate
 and annual average flow rate. The
 owner or operator shall determine, for
 each PMPU, the total annual average
 flow rate for the combination of all
process vents from batch unit operations
that are associated with the use of a
nonepoxide organic HAP to make or
modify a product in accordance with
paragraphs (d)(l) and (2) of this section.
  (1) The annual average flow rate for
each process vent from batch unit
operations that is associated with the
use of nonepoxide organic HAP to make
or modify the product shall be
determined using the batch process vent

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                                                                    29461
procedures in the NESHAP for Group I
Polymers and Resins (40 CFR part 63,
subpartU),§ 63.488 (e).
  (2) The owner or operator shall sum
the annual average flow rates from the
individual process vents from batch unit
operations in a PMPU, determined in
accordance with paragraph (d)(l) of this
section, to obtain the total annual
average flow rate for the combination of
process vents associated with the use of
a nonepoxide organic HAP to make or
modify the product, for the PMPU.
  (e) Determination of cutoff now rate.
For each PMPU at an affected source
that uses nonepoxide organic HAP to
make or modify the product, the owner
or operator shall calculate the cutoff
flow rate using Equation 14.
                                     CFR = (0.00437)(AE) -516    [Equation 14]
Where:
CFR = Cutoff flow rate, standard cubic
    meters per minute (scmm).
AE = Annual TOC or nonepoxide
    organic HAP emissions from the
    combination of process vents from
    batch unit operations that are
    associated with the use of
    nonepoxide organic HAP to make or
    modify the product, as determined
    in paragraph (b) (2) of this section,
    kg/yr.
  (f) [Reserved]
  (g) Process changes affecting Group 2
combinations of process vents in a
PMPU that are from batch unit
operations. Whenever process changes,
as described in paragraph (g)(l) of this
section, are made that affect a Group 2
combination of batch process vents and
that could reasonably be expected to
change the group status from Group 2 to
Group 1, the owner or operator shall
comply with paragraphs (g) (2) and (3) of
this section.
  (1) Examples  of process changes
include, but are not limited to, increases
in production capacity or production
rate, changes in feedstock type or
catalyst type; or whenever there is
replacement, removal, or modification
of recovery equipment considered part
of the batch unit operation. Any change
that results in an increase in the annual
nonepoxide organic HAP  emissions
from the estimate used in the previous
group determination constitutes a
process change for the purpose of these
provisions. Process changes do not
include: process upsets; unintentional,
temporary process changes; and changes
that are within the margin of variation
on which the original group
determination was based.
   (2) For each process affected by a
process change, the owner or operator
shall redetermine the group status by
repeating the procedures specified in
paragraphs (b) through (e) of this
section, as applicable, and determining
if the combination of process vents is a
Group 1 combination of batch process
vents, as denned in §63.1423.
Alternatively, engineering assessment,
as described in §63.488(b)(6)(i), may be
used to determine the effects of the
process change.
  (3) Based on the results of paragraph
(g)(2) of this section, the owner or
operator shall comply with either
paragraph (g)(3)(i) or (ii) of this section.
  (i) If the redetermination described in
paragraph (g) (2) of this section indicates
that the group status of the combination
of process vents from batch unit
operations in a PMPU that are
associated with the use of nonepoxide
organic HAP to make or modify the
product changes from Group 2 to Group
1 as a result of the process change, the
owner or operator shall submit a report
as specified in §63.1439(e)(6)(iii)(D)U)
and shall comply with Group 1
combination of batch process vents
provisions in this subpart, as specified
in§63.1420(g)(3).
  (ii) If the redetermination described in
paragraph (g)(2) of this section indicates
no change in group status, the owner or
operator is not required to submit a
report.
  (h) Process vents from continuous
unit operations. (1) The owner or
operator shall determine the total
resource effectiveness (TRE) index value
for each process vent from a continuous
unit operation that is associated with
the use of nonepoxide organic HAP to
make or modify the product. To
determine the TRE index value, the
owner or operator shall conduct a TRE
determination and calculate the TRE
index value according to the HON
process vent group determination
procedures in §63.115(d)(l) or (2) and
the TRE equation in § 63.115 (d) (3). The
TRE index value shall be determined at
the location after all applicable control
techniques have been applied to reduce
epoxide emissions in accordance with
paragraph (h)(l)(i), (ii), or (iii) of this
section.
  (i) If the owner or operator uses one
or more nonepoxide recovery devices
after all control techniques to reduce
epoxide emissions, this location shall be
after the last nonepoxide recovery
device.
  (ii) If the owner or operator does not
use a nonepoxide recovery device after
a combustion, recovery, or recapture
device to reduce epoxide emissions, this
location shall be at the exit of the
combustion, recovery, or recapture
device.
  (iii) If the owner or operator does not
use a nonepoxide recovery device after
extended cookout to reduce epoxide
emissions, this location shall be at the
exit from the continuous unit operation.
For the purpose of these determinations,
the primary condenser operating as a
reflux condenser on a reactor or
distillation column shall be considered
part of the unit operation.
  (2) The owner or operator of a Group
2 continuous process vent shall
recalculate the TRE index value as
necessary to determine whether the
process vent is Group 1 or Group 2,
whenever process changes are made that
could reasonably be expected to change
the process vent to Group 1. Examples
of process changes include, but are not
limited to, increases in production
capacity or production rate, changes in
feedstock type or  catalyst type, or
whenever there is replacement, removal,
or addition of recovery equipment. For
purposes of this paragraph, process
changes do not include: process upsets;
unintentional, temporary process
changes; and changes that are within the
range on which the original TRE
calculation was based.
  (i) The TRE index value shall be
recalculated based on measurements of
process vent stream flow rate, TOC, and
nonepoxide  organic HAP
concentrations, and heating values as
specified in the HON process vent group
determination procedures in §63.115(a),
(b), (c), and (d), as applicable, or on best
engineering assessment of the effects of
the change. Engineering assessments .
shall meet the specifications  in
§63.115(d)(l).
  (ii) Where the recalculated TRE index
value is less than or equal to  1.0, or,
where the TRE index value before the
process change was greater than 4.0 and
the recalculated TRE index value is less
than or equal to 4.0 but greater than 1.0,
the owner or operator shall submit a
report as specified in the process vent
reporting and recordkeeping provisions
in § 63.1430Q) or  (k), and shall comply
with the appropriate provisions in the
process vent control requirements in
§63.1425 by the dates specified in

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 §63.1422 (the section describing
 compliance dates for sources subject to
 this subpart).
   (iii) Where the recalculated TRE index
 value is greater than 4.0, the owner or
 operator is not required to submit a
 report.
   (i) Combination of process vents from
 batch unit operations and process vents
 from continuous unit operations. If an
 owner or operator combines a process
' vent from a batch unit operation that is
 associated with the use of a nonepoxide
 organic HAP to make or modify the
 product with a process vent from a
 continuous unit operation that is
 associated with the use of a nonepoxide
 prior to the epoxide control technique,
 or prior to a nonepoxide recovery device
 that is after the epoxide control
 technique,  then the provisions in
 paragraphs (i)(l) and (2) of this section
 shall apply.
   (1) The process vent from the batch
 unit operation is not required to be
 included in the group determination
 required  by paragraphs (a) through  (e) of
 this section.
   (2) The TRE index value of the
 combined stream shall be determined in
 accordance with paragraph  (h)  of this
 section, and the TRE index value shall
 be calculated during a.period when
 nonepoxide organic HAP emissions are
 being generated by the batch unit
 operation.

 § 63.1429  Process vent monitoring
 requirements.
   (a) Monitoring equipment
 requirements. The owner or operator of
 a process vent that uses a combustion,
 recovery, or recapture device to comply
 with the  process vent control
 requirements in §63.1425(b)(l), (b)(2),
 (c)(l), (c)(3), or (d) shall install
 monitoring equipment specified in
 paragraph (a)(l), (2), (3), (4), (5), (6), or
 (7) of this section, depending on the
 type of device used. Also, the owner or
 operator  that uses a recovery or
 recapture device to comply with
 § 63.1425(c)(4) shall install monitoring
 equipment  as specified In paragraph
 (a) (4), (5), (6), or (7) of this section. All
 monitoring equipment shall be
 installed, calibrated, maintained, and
 operated  according to manufacturers'
 specifications or other written
 procedures that provide adequate
 assurance that the equipment would
 reasonably be expected to monitor
 accurately.
   (1) Where an incinerator is used, a
 temperature monitoring device
 equipped with a continuous recorder is
 required.
   (i) Where an incinerator other than a
 catalytic incinerator is used, a
                        temperature monitoring device shall be
                        installed in the firebox or in the
                        ductwork immediately downstream of
                        the firebox in a position before any
                        substantial heat exchange occurs.
                          (ii) Where a catalytic incinerator is
                        used, temperature monitoring devices
                        shall be installed in the gas stream
                        immediately before and after the
                        catalyst bed.
                          (2) Where a flare is used, the  -
                        following monitoring equipment is
                        required: a device (including but not
                        limited to a thermocouple, ultra-violet
                        beam sensor, or infrared sensor) capable
                        of continuously detecting the presence
                        of a pilot flame.
                          (3) Where a boiler or process heater of
                        less than 44  megawatts design heat
                        input capacity is used, the following
                        monitoring equipment is required: a
                        temperature monitoring device in  the
                        firebox equipped with a continuous
                        recorder. Any boiler or process heater in
                        which  all process vent streams are
                        introduced with primary fuel or are
                        used as the primary fuel is exempt from
                        this requirement.
                          (4) Where an absorber is used, a
                        scrubbing liquid flow  rate meter or a
                        pressure monitoring device is required
                        and should be equipped with a
                        continuous recorder. If an acid or base
                        absorbent is  used, a pH monitoring
                        device to monitor scrubber effluent is
                        also required. If two or more absorbers
                        in series are  used, a scrubbing liquid
                        flow rate meter, or a pressure
                        monitoring device, equipped with a
                        continuous recorder, is required for
                        each absorber in the series. An owner or
                        operator may submit a request to instead
                        install  the scrubbing liquid flow rate
                        meter,  or a pressure monitoring device,
                        equipped with a continuous recorder,
                        on only the final absorber in a series, in
                        accordance with the alternative
                        parameter monitoring reporting
                        requirements in § 63.1439(f).
                          (5) Where  a condenser is used, a
                        condenser exit temperature (product
                        side) monitoring device equipped with
                        a continuous recorder is required.
                          (6) Where  a carbon adsorber is used,
                        an integrating regeneration stream flow
                        monitoring device having an accuracy of
                        + 10 percent or better, capable of
                        recording the total regeneration stream
                        mass or volumetric flow for each
                        regeneration cycle, and a carbon bed
                        temperature  monitoring device, capable
                        of recording  the carbon bed temperature
                        after each regeneration and within 15
                        minutes of completing any cooling cycle
                        are required.
                          (7) As an alternative to paragraphs
                        (a) (4) through (6) of this section, the
                        owner  or operator may install an organic
monitoring device equipped with a
continuous recorder.
  (b) Alternative parameters. An owner
or operator of a process vent may
request approval to monitor parameters
other than those listed in paragraph (a)
of this section. The request shall be
submitted according to the procedures
specified in the process vent repo-ting
and recordkeeping requirements in
§63.1430(1) and the alternative
parameter monitoring reporting
requirements in §63.1439(f). Approval
shall be requested if the owner or
operator:
  (1) Uses a combustion device other
than an incinerator, boiler, process
heater, or flare; or
  (2) For a Group 2 continuous process
vent, maintains a TRE greater than 1.0
but less than or equal to 4.0 without a
recovery device or with a recovery
device other than the recovery devices
listed in paragraph (a) of this section; or
  (3) Uses one of the combustion,
recovery,  or recapture devices listed in
paragraph (a) of this section, but seeks
to monitor a parameter other than those
specified in paragraph (a) of this
section.
  (c) Monitoring of bypass lines. The
owner or operator of a process vent
using a process vent system that
contains bypass lines that could divert
a process vent stream away from the
combustion, recovery, or recapture
device used to comply with the process
vent control requirements in
§63.1425(b), (c), or (d) shall comply
with paragraph (c)(l) or (2) of this
section. Equipment such as low leg
drains, high point bleeds, analyzer
vents, open-ended valves or lines, and
pressure relief valves needed for safety
purposes are not subject to paragraphs
(c)(l) or (2) of this section.
  (1) Properly install, maintain, and
operate a flow indicator that takes a
reading at least once at approximately
equal intervals of about 15 minutes.
Records shall be generated as specified
in the process vent reporting and
recordkeeping provisions in
§63.1430(d)(3). The flow indicator shall
be installed at the entrance to any
bypass line that could divert emissions
away from the combustion, recovery, or
recapture  device and to the atmosphere;
or
  (2) Secure the bypass line valve in the
non-diverting position with a car-seal or
a lock-and-key type configuration. A
visual inspection of the seal or closure
mechanism shall be performed at least
once every month to ensure that the
valve is maintained in the non-diverting
position and emissions are not diverted
through the bypass line. Records shall
be generated as specified in the process

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                                                                      29463
vent reporting and recordkeeping
provisions in §63.1430(d)(4)(i).
  (d) Establishment of parameter
monitoring levels. Parameter monitoring
levels for process vents from continuous
or batch unit operations using a
combustion, recovery, or recapture
device to comply with the process vent
control requirements in §63.1425(b), (c),
or (d) shall be established as specified
in paragraphs (d)(l) through (3) of this
section.
  (1) For each parameter monitored
under paragraph (a) or (b) of this
section, the owner or operator shall
establish a level, defined as either a
maximum or minimum operating
parameter as denoted in Table 5 of this
subpart (the table listing the monitoring,
recordkeeping, and reporting
requirements for process vents from
batch unit operations), that indicates
that the combustion, recovery, or
recapture device is operated in a
manner to ensure compliance with the
provisions of this subpart. The level
shall be established in accordance with
the procedures specified in the process
vent control requirements in
§ 63.1430(d). The level may be based
upon a prior performance test
conducted for determining compliance
with a regulation promulgated by the
EPA, and the owner or operator is not
required to conduct a performance test
under the process vent requirements for
determining organic HAP concentration,
control efficiency, and aggregated
organic HAP emission reductions in
§ 63.1426, provided that the prior
performance test meets the conditions of
§63.1426(b)(3).
  (2) The established level, along with
supporting documentation, shall be
submitted in the Notification of
Compliance Status or the operating
permit application as required in  the
Notification of Compliance Status
requirements in §63.1439(e)(5) or in the
operating permit application
requirements in §63.1439(e)(8),
respectively.
  (3) The operating day shall be defined
as part of establishing the parameter
monitoring level and shall be submitted
with the information in paragraph (d) (2)
of this section. The definition of
operating day shall specify the time(s) at
which an operating day begins and
ends.

§ 63.1430 Process vent reporting and
recordkeeping requirements.
  (a) [Reserved]
  (b) Records to demonstrate
compliance. The owner or operator
complying with the process vent control
requirements in §63.1425(b), (c), or (d)
shall keep the following records, as
applicable, readily accessible:
   (1) When using a flare to comply with
the process vent control requirements in
§63.1425(b)(2)(i), (c)(l)(i), (c)(3)(i), or
   (i) The flare design (i.e., steam-
assisted, air-assisted, or non-assisted);
   (ii) All visible emission readings, heat
content determinations, flow rate
determinations, and exit velocity
determinations made during the flare
specification determination required by
§63.1437(c);and
   (iii) All periods during the flare
specification determination required by
§ 63.1437(c) when all pilot flames are
absent.
   (2)  The following information when
using a combustion, recovery, or
recapture device (other than a flare) to
achieve compliance with the process
vent control requirements in
§63.1425(b), (c).or(d):
   (i) For a combustion, recovery, or
recapture device being used to comply
with a percent reduction requirement of
§63.1425(b)(l)(i), (b)(2)(ii), (c)(l)(ii),
(c)(3)(ii), or (d)(2), or the annual epoxide
emission limitation in
§63.1425(b)(l)(iii) or (b)(2)(iv), the
percent reduction of organic HAP or
TOC achieved, as determined  using the
procedures specified in the process vent
requirements in §63.1426;
   (ii)  For a combustion device being
used to comply with an outlet
concentration limitation of
§63.1425(b)(l)(ii) or (b)(2)(iii), the
concentration of organic HAP  or TOC
outlet of the combustion device, as
determined using the procedures
specified in the process vent
requirements in § 63.1426;
   (iii) For a boiler or process heater, a
description of the location at which the
process vent stream is introduced into
the boiler or process heater;
   (iv) For a boiler or process heater with
a design heat input capacity of less than
44 megawatts and where the process
vent stream is introduced with
combustion air or is used as a  secondary
fuel and is not mixed with the primary
fuel, the percent reduction of organic
HAP or TOC achieved, as determined
using the procedures specified in
§63.1426.
   (c) Records related to the
establishment of parameter monitoring
levels. For each parameter monitored
according to the process vent
monitoring requirements in §63.1429(a)
and Table 5 of this subpart, or for
alternate parameters and/or parameters
for alternate control techniques
monitored according to the alternative
parameter monitoring reporting
requirements in §63.1439(f) as allowed
  under §63.1429(b), maintain
  documentation showing the
  establishment of the level that indicates
  that the combustion, recovery, or
  recapture device is operated in a
  manner to ensure compliance with the
  provisions of this subpart, as required
  by the process vent monitoring
  requirements in §63.1429(d).
    (d) Records to demonstrate
  continuous compliance. The owner or
  operator that uses a combustion,
  recovery, or recapture device to comply
  with the process vent control
  requirements in §63.1425(b),  (c), or (d)
  shall keep the following records readily
  accessible:
    (1) Continuous records of the
  equipment operating parameters
  specified to be monitored under the
  process vent monitoring requirements in
  § 63.1429(a) as applicable, and listed in
  Table 5 of this subpart, or specified by
  the Administrator in accordance with
.  the alternative parameter monitoring
  reporting requirements in §63.1439(f),
  as allowed under § 63.1429(b). These
  records shall be kept as specified under
  §63.1439(d), except as specified in
  paragraphs (d)(l)(i) and (ii) of this
  section.
    (i) For flares, the records specified in
  Table 5 of this subpart shall be
  maintained in place of continuous
  records.
    (ii) For carbon adsorbers used for
  process vents from batch unit
  operations, the records specified in
  Table 5 of this subpart shall be
  maintained in place of daily averages.
    (2) Records of the daily average value
  for process vents from continuous unit
  operations or batch unit operations of
  each continuously monitored  parameter,
  except as provided in paragraphs
  (d)(2)(i) and (ii) of this section.
    (i) Monitoring data recorded during
  periods of monitoring system
  breakdowns, repairs, calibration checks,
  and zero (low-level) and high-level
  adjustments shall not be included in
  computing the daily averages. In
  addition, monitoring data recorded
  during periods of non-operation of the
  process (or specific portion thereof)
  resulting in cessation of organic HAP
  emissions, (or periods of start-up,
  shutdown, or malfunction) shall not be
  included in computing the daily
  averages.
    (ii) If all recorded values for a
  monitored parameter during an
  operating day are above the minimum or
  below the maximum parameter
 monitoring level established in
  accordance with the process vent
 monitoring requirements  in
  § 63.1429(d), the owner or operator may
  record that all values were above the

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minimum or below the maximum level
established, rather than calculating and
recording a daily average for that
operating day.
  (3) Hourly records of whether the flow
indicator for bypass lines specified
under § 63.1429(c)(l) was operating and
whether a diversion was detected at any
time during the hour. Also, records of
the time(s) of all periods when the
process vent was diverted from the
combustion, recovery, or recapture
device, or the flow indicator specified in
§63.1429(c)(l) was not operating.
  (4) Where a seal or closure
mechanism is used to comply with the
process vent monitoring requirements
for bypass lines in §63.1429(c)(2),
hourly records of flow are not required.
For compliance with §63.1429(c)(2), the
owner or operator shall record whether
the monthly visual inspection of the
seals or closure mechanism has been
done, and shall record the occurrence of
all periods when the seal mechanism is
broken, the bypass line valve position
has changed, or the key for a lock-and-
key type configuration has been checked
out, and records of any car-seal that has
been broken.
  (5) Records specifying the times and
duration of periods of monitoring
system breakdowns, repairs, calibration
checks, and zero  (low-level) and high
level adjustments. In addition, records
specifying any other periods of process
or combustion, recovery, or recapture
device operation when monitors are not
operating.
  (e) Records related to the group
determination for process vents that are
associated with the use ofnonepoxide
organic HAP to make or modify the
product. (1) Process vents from batch
unit operations. Except as provided in
paragraphs (e)(l)(vi) and (vii) of this
section, the owner or operator of an
affected source shall maintain the
records specified in paragraphs (e)(l)(i)
through (v) of this section for each
PMPU that uses a nonepoxide organic
HAP to make or modify the product in
batch unit operations. The records
required to be maintained by this
paragraph are limited to the information
developed and used to make the group
determination under the process vent
requirements for processes using a
nonepoxide organic HAP to make or
modify the product in § 63.1428(a)
through (e), as appropriate. If an owner
or operator did not need to develop
certain information (e.g., annual average
flow rate) to determine the group status,
the owner or operator is not required to
develop additional information. The
owner or  operator may elect Group 1
status for process vents without making
a Group I/Group 2 determination. In
                        such event, none of the records
                        specified in paragraphs (e)(l)(i) through
                        (v) are required.
                          (i) A description of, and an emission
                        estimate for, each batch emission
                        episode, and the total emissions
                        associated with one batch cycle for each
                        unique product class made in the
                        PMPU.
                          (ii) Total annual uncontrolled TOG or
                        nonepoxide organic HAP emissions
                        from the combination of process vents
                        from batch unit operations associated
                        with the use of nonepoxide organic HAP
                        to make or modify the product, as
                        determined in accordance with the
                        process vent requirements for group
                        determinations in § 63.1428(b).
                          (iii) The annual average flow rate for
                        the combination of process vents from
                        batch unit operations associated with
                        the use of organic HAP to make or
                        modify the product, as determined in
                        accordance with the process vent
                        requirements for group determinations
                        in§63.1428(d).
                          (iv) The  cutoff flow rate, determined
                        in accordance with the process vent
                        requirements for group determinations
                        in§63.1428(e).
                          (v) The results of the PMPU group
                        determination (i.e., whether the
                        combination of process vents is Group
                        1 or Group 2).
                          (vi) If the combination  of all process
                        vents from batch unit operations
                        associated with the use of an organic
                        HAP to make or modify the product is
                        subject to the Group 1 batch process
                        vent control requirements for
                        nonepoxide HAP emissions from
                        making or  modifying the  product in
                        §63.1425(c)(l), none of the records in
                        paragraphs (b)(l)(i) through (v) of this
                        section are required.
                          (vii) If the total annual  emissions from
                        the combination of process vents from
                        batch unit  operations associated with
                        the use of an organic HAP to make or
                        modify the product are less than 11,800
                        kg per year, only the records in
                        paragraphs (b)(l)(i) and (ii) of this
                        section are required.
                          (2) Process vents from continuous unit
                        operations. The owner or operator of an
                        affected source that uses nonepoxide
                        organic HAP to make or modify the
                        product in continuous unit operations
                        shall keep  records regarding the
                        measurements and calculations
                        performed to determine the TRE index
                        value of each process vent stream. The
                        owner or operator of Group 1
                        continuous process vents that are
                        subject to the control requirements of
                        § 63.1425(c)(3) is not required to keep
                        these records.
                          (f) Records for Group 2 process vents
                        that are associated with the use of
nonepoxide organic HAP to make or
modify the product. The following
records shall be maintained for PMPUs
with a Group 2 combination of batch
process vents and/or one or more Group
2 continuous process vents.
  (1) Process vents from batch unit
operations—emission records. The
owner or operator shall maintain
records of the combined total annual
nonepoxide organic HAP emissions
from process vents associated with the
use of nonepoxide organic HAP to make
or modify the product for each PMPU
where the combination of these process
vents is classified as Group 2.
  (2) Process vents from continuous unit
operations—monitoring records for
vents with TRE between 1.0 and 4.0. The
owner or operator using a recovery
device or other means to achieve and
maintain a TRE index value greater than
1.0 but less than 4.0 as specified in the
HON process vent requirements in
§63.113(a)(3) or§63.113(d) shall keep
the following records readily accessible:
  (i) Continuous records of the
equipment operating parameters
specified to be monitored under
§63.114(b) and listed in Table 5 of this
subpart or specified by  the
Administrator in accordance with
§63.114(c)and§63.117(e);and
  (ii) Records of the daily average value
of each continuously monitored
parameter for each operating day
determined according to the procedures
specified in §63.152(f). If carbon
adsorber regeneration stream flow and
carbon bed regeneration temperature are
monitored, the records specified in
Table 5 of this subpart shall be kept
instead of the daily averages.
  (3) Process vents from continuous unit
operations—records related to process
changes. The owner or operator subject
to the provisions of this subpart who
has elected to demonstrate compliance
with the TRE index value greater than
4.0 under § 63.113(e) or greater than 1.0
under§63.113(a)(3) or§63.113(d) shall
keep readily accessible records of:
  (i) Any process changes as defined in
§ 63.115(e); and
  (ii) Any recalculation of the TRE
Index value pursuant to § 63.115(e).
  (4) Process vents from continuous unit
operations—records for vents with a
flow rate less than 0.005 standard cubic
meter per minute. The owner or
operator who elects to comply by
maintaining a flow rate less than 0.005
standard cubic meter per minute under
§ 63.113(f), shall keep readily accessible
records of:
  (i) Any process changes as defined in
§ 63.115(e) that increase the process
vent stream flow rate;

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                                                                    29465
  (ii) Any recalculation or measurement
of the flow rate pursuant to §63.115(e);
and
  (iii) If the flow rate increases to 0.005
standard  cubic meter per minute or
greater as a result of the process change,
the TRE determination performed
according to the procedures of
§63.115(d).
  (5) Process vents from continuous unit
operations—records for vents with an
organic HAP concentration less than 50
pans per million. The owner or operator
who elects to comply by maintaining an
organic HAP concentration less than 50
parts per million by volume organic
HAP concentration under § 63.113(g)
shall keep readily accessible records of:
  (i) Any process changes as defined in
§63.115(e) that increase the organic
HAP concentration of the process vent
stream;
  (ii) Any recalculation or measurement
of the concentration pursuant to
§63.115(e);and
  (iii) If the organic HAP concentration
increases to 50 parts per million by
volume or greater as a result of the
process change, the TRE determination
performed according to the procedures
of§63.115(d).
  (g) Notification of Compliance Status.
The owner or operator of an affected
source shall submit the information
specified in paragraphs (g)(l) through
(3) of this section, as appropriate, as part
of the Notification of Compliance Status
specified in §63.1439(e)(5).
  (1) For the owner or operator
complying with the process vent control
requirements in §63.1425(b), (c)(l),
(c) (3), or  (d), the information specified
in paragraph (b) of this section related
to the compliance demonstration, and
the information specified in paragraph
(c) of this section related to the
establishment of parameter monitoring
levels,
  (2) For each PMPU where the
combination of process vents from batch
unit operations that are associated  with
the use of nonepoxide organic HAP to
make or modify the product is Group 2,
the information related to the group
determination specified in paragraph
(e)(l) of this section.
  (3) For each process vent from a
continuous unit operation that is
associated with the use of nonepoxide
organic HAP to make or modify the
product that is Group 2, the information
related to the group determination
specified in paragraph (e)(2) of this
section.
  (h) Periodic Reports. The owner  or
operator of an affected source shall
submit Periodic Reports of the recorded
information specified in paragraphs
(h)(l) through (6) of this section, as
appropriate, according to the schedule
for submitting Periodic Reports in
§63.1439(e)(6)(i).
  (1) Reports of daily average values of
monitored parameters for all operating
days when the daily average values
recorded under paragraph (d)(2) of this
section were above the maximum, or
below the minimum, level established
in the Notification of Compliance Status
or operating permit.
  (2) Reports of the duration of periods
when monitoring data are not collected
for each excursion caused by
insufficient monitoring data as defined
in §63.1438(f)(l)(iv), (f)(2)(i)(B), or
  (3) Reports of the times and durations
of all periods 'recorded under paragraph
(d) (3) of this section when the process
vent stream is diverted from the
combustion, recovery, or recapture
device through a bypass line.
  (4) Reports of all periods recorded
under paragraph (d)(4) of this section in
which the seal mechanism is broken,
the bypass line valve position has
changed, or the key to unlock the bypass
line valve was checked  out.
  (5) Reports of the times and durations
of all periods recorded under paragraph
(d)(l)(i) of this section in which all pilot
flames of a flare were absent.
  (6) Reports, of all carbon bed
regeneration cycles during which the
parameters recorded under paragraph
(d) (1) (ii) of this section were above the
maximum, or below the minimum,
levels established in the Notification of
Compliance  Status or operating permit.
  (i) Reports of process changes.
Whenever a process change, as defined
in §63.1420(g)(3), is made that causes a
Group 2 combination of batch process
vents at a PMPU that are associated with
the use of nonepoxide organic HAP to
make or modify the product to become
Group 1, the owner or operator shall
submit a report within 180 days after
the process change is made or the
information regarding the process
change is known to the  owner or
operator. This report may be included in
the next Periodic Report or in a separate
submittal to  the Administrator, as
specified in §63.1439(e)(6)(iii)(D)(l). A
description of the process change shall
be submitted with the report.
  (j) Reporting requirements for Group 2
continuous process  vents. (1) Whenever
a process change, as defined in
§ 63.1420(g)(3), is made that causes a
Group 2 continuous process vent with a
TRE greater than 4.0 to become a Group
2 continuous process vent with a TRE
less than 4.0, the owner or operator
shall submit a report within 180
calendar days after the process change
is made or the information regarding the
process change is known, unless the
flow rate is less than 0.005 standard
cubic meters per minute. The report
may be submitted as part of the next
periodic report. The report shall
include:
  (i) A description of the process
change;
  (ii) The results of the recalculation of
the TRE index value required under
§63.1428(h)(2), and recorded under
paragraph (f) (3) of this section; and
  (iii) A statement that the owner or
operator will comply with the process
vent monitoring requirements specified
in §63.1429, as appropriate.
  (2) Whenever a process change, as
defined in §63.1420(g)(3), is made that
causes a Group 2 continuous process
vent with a flow rate less than 0.005
standard cubic meters per minute to
become a Group 2 continuous process
vent with a flow rate of 0.005 standard
cubic meters per minute or greater, the
owner or operator shall submit a report
within 180 calendar days after the
process change is made or the
information regarding the process
change is known, unless the organic
HAP concentration is less than 50
ppmv. The report may be submitted as
part of the next periodic report. The
report shall include:
  (i) A description of the process
change;
  (ii) The results of the calculation of
the TRE index value required under
§63.1428(h)(2), and recorded under
paragraph (f) (3) of this section; and
  (iii) A statement that the owner or
operator will comply with the process
vent monitoring requirements specified
in §63.1429, as appropriate.
  (3) Whenever a process change, as
defined in §63.1420(g)(3), is made that
causes a Group 2 continuous process
vent with an organic HAP concentration
less than 50 ppmv to become a Group
2 continuous process vent with an
organic HAP concentration of 50 ppmv
or greater and a TRE index value less
than 4.0, the owner or operator shall
submit a report within 180 calendar
days after the process change is made or
the information regarding the process
change is known, unless the flow rate is
less than 0.005 standard cubic meters
per minute. The report may be
submitted as part of the next periodic
report. The report shall include:
  (i) A description of the process
change;
  (ii) The results of the calculation of
the TRE index value required under
§63.1428(h)(2), and recorded under
paragraph (f)(3) of this section; and
  (iii) A statement that the owner or
operator will comply with the process

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vent monitoring requirements specified
in §63.1429, as appropriate.
  (k) Alternative requests. If an owner or
operator uses a combustion, recovery, or
recapture device other than those
specified in the process vent monitoring
requirements in §63.1429 (a) (1) through
(7) and listed in Table 5 of this subpart;
requests approval to monitor a
parameter other than those specified in
§63.1429(a)(l) through (7) and listed in
Table 5 of this subpart; or uses ECO and
requests to monitor a parameter other
than those listed in §63.1427(i)(l)(i)
through (iii), as allowed under
§ 63.1427(i)(l)(iv), the owner or operator
shall submit a description of planned
reporting and recordkeeping
procedures, as specified in
§63.1439(f)(3), as part of the
Precompliance Report as required under
§63.1439(e)(4), or to the Administrator
as a separate submittal. The
Administrator will specify appropriate
reporting and recordkeeping
requirements as part of the review of the
Precompliance Report.

§ 63.1431  Process vent annual epoxides
emission factor plan requirements.
  (a) Applicability of emission factor
plan requirements. An owner or
operator electing to comply with an
annual epoxide emission factor
limitation in §63.1425(b)(l)(iii) or
                        (b) (2) (iv) shall develop and implement
                        an epoxides emission factor plan in
                        accordance with the provisions of this
                        section.
                          (b) Emission factor plan requirements.
                        The owner or operator shall develop an
                        epoxides emission factor plan.
                          (1) If epoxide emissions are
                        maintained below the epoxide emission
                        factor limitation through the use of a
                        combustion,  recovery, or recapture
                        device (without extended cookout), the
                        owner or operator shall develop and
                        implement the plan in accordance with
                        paragraph (c) of this section.
                          (2) If epoxide emissions are
                        maintained below the epoxide emission
                        factor limitation through the use of
                        extended cookout (without a
                        combustion,  recovery, or recapture
                        device), the owner or operator shall
                        develop and  implement the plan in
                        accordance with paragraph (d) of this
                        section.
                          (3) If epoxide emissions are
                        maintained below the epoxide emission
                        factor limitation through the use of
                        extended cookout in conjunction with a
                        combustion,  recovery, or recapture
                        device, the owner or operator shall
                        develop and  implement the plan in
                        accordance with paragraph (e) of this
                        section.
                          (c) Compliance with epoxide emission
                        factor limitation using a combustion.
recovery, or recapture device. (1) The
owner or operator shall notify the
Agency of the intent to use a
combustion, recovery, or recapture
device to comply with the epoxide
emission factor limitation in
§63.1425(b)(l)(iii) or (b)(2)(iv). The
owner or operator shall prepare an
estimate of the annual epoxide
emissions and the actual production
rate In accordance with paragraphs
(c)(l)(i) through (iv) of this section. This
notification and emission estimate shall
be submitted in the Precompliance
Report as specified in § 63.1439(e)(4), or
in the operating permit  application, as
allowed in §63.1439(e)(8).
  (i) Annual uncontrolled epoxide
emissions. These emission estimates
shall be determined in accordance with
the batch process vent group
determination procedures in the
NESHAP for Group I Polymers and
Resins (40 CFR part 63, subpart U,
§63.488(b)) and shall be based on
anticipated production.
  (ii) A description of the combustion,
recovery, or recapture device, along
with the expected percent efficiency.
  (iii) Annual emissions after the
combustion, recovery, or recapture
device. The expected annual emissions
after control shall be determined using
Equation 15.
                                  AE.
                                     control '
                                          1--I-H    [Equation 15]
Where:
AEcomroi = Annual epoxide emissions
    after control, kg/yr.
AEuncontroiicd - Annual uncontrolled
    epoxide emissions, determined in
    accordance with paragraph (c)(l)(i)
    of this section, kg/yr.
R = Expected control efficiency of the
    combustion, recovery, or recapture
    device, percent, as determined in
    §63.1426(c).
  (iv) The actual annual production rate
means the annual  mass of polyether
polyol product produced from the
applicable PMPU. This production rate
shall be for the same annual time period
as the annual emission estimate as
calculated in accordance with paragraph
(c)(l)(iii) of this section.
  (2) The owner or operator shall
conduct a performance test in
accordance with § 63.1426(c) to
determine the epoxide control efficiency
of the combustion, recovery, or
recapture device. The owner or operator
shall then recalculate the annual
epoxide emissions after control using
                        Equation 15, except that the control
                        efficiency, R, shall be the measured
                        control efficiency. This information
                        shall be submitted as part of the
                        Notification of Compliance Status, as
                        provided in §63.1439(e)(5).
                          (3) The owner or operator shall
                        comply with the process vent
                        monitoring provisions in § 63.1429.
                          (4) The owner or operator shall
                        comply with the process vent
                        recordkeeping requirements in
                        paragraphs §63.1430(b) through (d), and
                        the process vent reporting requirements
                        in§63.1430(g)(l)and(h).
                          (d) Compliance with epoxide emission
                        factor limitation using extended
                        cookout. (1) The owner or operator shall
                        notify the Agency of the intent to use
                        extended cookout to comply with the
                        epoxide emission factor limitation in
                        §63.1425(b)(l)(iii) or (b)(2)(iv).The
                        owner or operator shall prepare an
                        estimate of the annual epoxide
                        emissions after the extended cookout.
                        This notification and emission estimate
                        shall be submitted in the Precompliance
Report as specified in §63.1439(e)(4), or
in the operating permit application, as
allowed in §63.1439(e)(8).
  (2) The owner or operator shall
determine the annual epoxide emissions
in accordance with § 63.1427(d), based
on anticipated production. This
information shall be submitted as part of
the Notification of Compliance Status,
as provided in §63.1439(e)(5).
  (3) The owner or operator shall
comply with the ECO monitoring
provisions in §63.1427(1).
  (4) The owner or operator shall
comply with the process vent
recordkeeping and reporting
requirements in §63.1430.
  (e) Compliance with the epoxide
emission factor limitation through the
use of extended cookout in conjunction
with one or more combustion, recovery,
and/or recapture device. (1) The owner
or operator shall notify the Agency of
the intent to use extended cookout in
conjunction with one or more
combustion, recovery, and/or recapture
device to comply with the annual

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                                                                     29467
epoxide emission factor limitation in
§63.1425(b)(l)(iii) or (b)(2)(iv). The
owner or operator shall prepare an
estimate of the annual epoxide
emissions after control. This notification
and emission estimate shall be
submitted in the Precompliance Report
as specified in § 63.1439(e)(4), or in the
operating permit application, as allowed
under §63.1439(e)(8).
  .(2) The owner or operator shall
determine the annual epoxide emissions
after control. This information shall be
submitted as part of the Notification of
Compliance Status, as provided in
§63.1439(e)(5).
   (3) The owner or operator shall
comply with the ECO monitoring
provisions in §63.1427(i).
   (4) The owner or operator shall
comply with the ECO recordkeeping
and reporting requirements in
§63.1427(j) and (k).
   (f) Compliance with epoxide emission
factor limitation without using extended
cookout or a combustion, recovery, or
recapture device. (1) The  owner or
operator shall notify the Agency of the
intent to comply with the epoxide
emission factor limitation in
§63.1425(b)(l)(iii) or (b)(2)(iv) without
the use of ECO or a combustion,
recovery, or recapture device. The
owner or operator shall prepare an
estimate of the annual epoxide
emissions. This notification and
emission estimate shall be submitted in
the Precompliance Report as specified
in §63.1439(e)(4), or in the operating
permit application, as allowed in
§63.1439(e)(8).
   (2) Each year after the compliance
date, the owner or operator shall
calculate the epoxides emission factor
for the previous year. This information
shall be submitted in the  second
Periodic Report submitted each year, as
specified in §63.1439(e)(6).

§ 63.1432  Storage vessel provisions.
   (a) For each storage vessel located at
an affected source, the owner or
operator shall comply with the HON
storage vessel requirements of §§ 63.119
through 63.123 and the HON leak
inspection provisions In § 63.148, with
the differences noted in paragraphs (b)
through (p) of this section, for the
purposes of this subpart.
   (b)  When the term  "storage vessel" is
used in the HON storage vessel
requirements in §§ 63.119 through
63.123, the definition of this term in
§ 63.1423 shall apply for  the purposes of
this subpart.
   (c) When the term "Group 1 storage
vessel" is used in the HON storage
vessel requirements in §§ 63.119
through 63.123, the definition of this
term in § 63.1423 shall apply for the
purposes of this subpart.
  (d) When the term "Group 2 storage
vessel" is used in the HON storage
vessel requirements in §§ 63.119
through 63.123, the definition of this
term in § 63.1423 shall apply for the
purposes of this subpart.
  (e) When the HON storage vessel
requirements in § 63.119 refer to
"December 31, 1992," the phrase
"September 4, 1997" shall apply
instead, for the purposes of this subpart.
  (f) When the HON storage vessel
requirements in § 63.119 refer to "April
22,1994," the phrase "June 1, 1999,"
shall apply instead, for the purposes of
this subpart.
  (g) The owner or operator of an
affected source shall comply with this
paragraph instead of § 63.120(d)(l)(ii)
for the purposes of this subpart. If the
combustion, recovery, or recapture
device used to comply with § 63.119(e)
is also used to comply with any of the
requirements found in §§ 63.1425
through 63.1431 and/or §63.1433, the
performance test required in or accepted
by §§63.1425 through 63.1431 and/or
§ 63.1433 is acceptable for
demonstrating compliance with the
HON storage vessel requirements in
§ 63.119(e), for the purposes of this
subpart. The owner or operator will not
be required to prepare a design
evaluation for the combustion, recovery,
or recapture device as described in
§63.120(d)(l)(i), if the performance test
meets the criteria specified in
paragraphs (g) (1) and (2) of this section.
  (1) The performance test demonstrates
that the combustion, recovery, or
recapture device achieves greater than
or equal to the required control
efficiency specified in the HON storage
vessel requirements in § 63.119(e)(l) or
(2), as applicable; and
  (2) The performance test is submitted
as part of the Notification of Compliance
Status required by §63.1439(e)(5).
  (h) When the HON storage vessel
requirements in §63.120(d)(3)(i) uses
the term "operating range," the term
"level," shall apply instead, for the
purposes of this subpart
  (i) For purposes of this subpart, the
monitoring plan required by the HON
storage vessel requirements in
§ 63.120(d)(2) shall specify for which
combustion, recovery, or recapture
device the owner or operator has
selected to follow the procedures for
continuous monitoring specified in
§ 63.1438. For the combustion, recovery,
or recapture device(s) for which the
owner or operator has selected not to
follow the procedures for continuous
monitoring specified in § 63.1438, the
monitoring plan shall include a
description of the parameter^) to be
monitored to ensure that the
combustion, recovery, or recapture
device is being properly operated and
maintained, an explanation of the
criteria used for selection of that
parameters), and the frequency with
which monitoring will be performed
(e.g., when the liquid level in the
storage vessel is being raised), as
specified in § 63.120(d) (2) (i).
  (J) For purposes of this subpart, the
monitoring plan required by § 63.122 (b)
shall be included in the Notification of
Compliance Status required by
§63.1439(e)(5).
  (k) When the HON Notification of
Compliance Status requirements
contained in §63.152(b) are referred to
in §§63.120, 63.122, and  63.123, the
Notification of Compliance Status
requirements contained in
§63.1439(e)(5) shall apply for the
purposes of this subpart.
  (1) When the HON Periodic Report
requirements contained in §63.152(c)
are referred to in §§63.120, 63.122, and
63.123, the Periodic Report
requirements contained in
§ 63.1439 (e) (6) shall apply for the
purposes of this subpart.
  (m) When other reports as required in
§63.152(d) are referred to in §63.122,
the reporting requirements contained in
§ 63.1439 (e) (7) shall apply for the
purposes of this subpart.
  (n) When the HON Initial Notification
requirements contained in § 63.151 (b)
are referred to in § 63.119 through
§ 63.123, the owner or operator shall
comply with the Initial Notification
requirements contained in
§63.1439(e)(3), for the purposes of this
subpart.
  (o) When the determination of
equivalence criteria in §63.102(b) are
referred to in the HON storage vessel
requirements in §63.121 (a), the General
Provisions' alternative nonopacity
emission provisions in §63.6(g) shall
apply for the purposes of this subpart.
  (p) The compliance date for storage
vessels at affected sources subject to the
provisions of this section is specified in
§63.1422.
  (q) In addition to the records required
by  § 63.123, the owner or operator shall
maintain records of all times when the
storage tank is being filled (i.e., when
the liquid level in the storage vessel is
being raised). These records shall
consist of documentation of the time
when each filling period  begins and
ends.

§ 63.1433  Wastewater provisions.
  (a) Process wastewater. Except as
specified in paragraph (c) of this
section, the owner or operator of each

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 affected source shall comply with the
 HON wastewater requirements in
 §§63.132 through 63.147 for each
 process wastewater stream originating at
 an affected source, with the HON leak
 inspection requirements in § 63.148,
 and with the HON requirements in
 § 63.149 for equipment that is subject to
 §63.149, with the differ ances noted in
 paragraphs (a)(l) through (20) of this
 section. Further, the owner or operator
' of each affected source shall comply
 with the requirements of § 63.105 (a) for
 maintenance wastewater, as specified in
 paragraph (b) of this section.
   (1) Owners and operators of affected
 sources are not required to comply with
 the HON new source wastewater
 requirements in §63.132(b)(l) and
 §63.132(d), for the purposes of this
 subpart. Owners or operators of all new
 affected sources, as defined in this
 subpart, shall comply with the HON
 requirements for existing sources in
 §§63.132 through 63.149.
   (2) When the HON requirements in
 §§ 63.132 through 63.149 refer to Table
 9 or Table 36 of 40 CFR part 63, subpart
 G, the owner or operator is only
 required to consider organic HAP listed
 in Table 9 or Table 36 of 40 CFR part
 63, subpart G, that are also listed on
 Table 4 of this subpart, for the purposes
 of this subpart. Owners and operators
 are exempt from all requirements in
 §§ 63.132 through 63.149 that pertain
 solely and exclusively to organic HAP
 listed on Table 8 of 40 CFR part 63,
 subpart G. In addition, when §§63.132
 through 63.149 refer to List 1 or List 2,
 as listed in Table 36 of 40 CFR part 63,
 subpart G, the owner or operator is only
 required to consider organic HAP
 contained in those lists that are also
 listed on Table 4 of this subpart, for the
 purposes of this subpart.
   (3) When the determination of
 equivalence criteria in § 63.102 (b) is
 referred to in §§63.132, 63.133, and
 63.137, the General Provisions'
 alternative nonopacity emission
 standard provisions in §63.6(g) shall
 apply for the purposes of this subpart.
   (4) When the HON storage vessel
 requirements contained in §§63.119
 through 63.123 are referred to in
 §§63.132 through 63.148, the HON
 storage vessel requirements in §§ 63.119
 through 63.123 are applicable, with the
 exception of the differences referred to
 in the storage vessel requirements in
 § 63.1432, for the purposes of this
 subpart.
   (5) When the HON process
 wastewater reporting requirements in
 §63.146(a) require the submission of a
 request for approval to monitor
 alternative parameters according to the
 procedures specified in §63.151(g) or
                        § 63.152(e), the owner or operator
                        requesting to monitor alternative
                        parameters shall follow the procedures
                        specified in § 63.1439(f), for the
                        purposes of this subpart.
                          (6) When the HON process
                        wastewater recordkeeping requirements
                        in § 63.147(d) require the owner or
                        operator to keep records of the daily
                        average value of each continuously
                        monitored parameter for each operating
                        day as specified in the HON
                        recordkeeping provisions in § 63.152(f),
                        the owner or operator shall instead keep
                        records of the daily average value of
                        each continuously monitored parameter
                        as specified in §63.1439(d), for the
                        purposes of this subpart.
                          (7) When the HON requirements in
                        §§63.132 through 63.149 refer to an
                        "existing source," the term "existing
                        affected source," as defined in
                        § 63.1420(a)(3) shall apply, for the
                        purposes of this subpart.
                          (8) When the HON requirements in
                        §§ 63.132 through 63.149 refer to a "new
                        source," the term "new affected
                        source," as defined in §63.1420(a)(4)
                        shall apply, for the purposes of this
                        subpart.
                          (9) When the HON process
                        wastewater provisions in § 63.132 (a)
                        and (b) refer to the "applicable dates
                        specified in § 63.100 of subpart F of this
                        part," the applicable compliance dates
                        specified in § 63.1422 shall apply, for
                        the purposes of this subpart.
                          (10) Whenever the HON process
                        wastewater provisions in §§ 63.132
                        through 63.147 refer to a Group 1
                        wastewater stream or a Group 2
                        wastewater stream, the definitions of
                        these terms contained in §63.1423 shall
                        apply, for the purposes of this subpart.
                          (11) When the  HON control
                        requirements for certain liquid streams
                        in open systems, in § 63.149(d), refer to
                        "§63.100(f) of subpart F," the phrase
                        "§63.1420(c)," shall apply for the
                        purposes of this subpart. In addition,
                        where §63.149(d) states "and the item
                        of equipment is not otherwise exempt
                        from controls by  the provisions of
                        subparts A, F, G, or H of this part," the
                        phrase "and the item of equipment is
                        not otherwise exempt from controls by
                        the provisions of subparts A, F. G, H, or
                        PPP of this part," shall apply for the
                        purposes of this subpart.
                          (12) When the  HON control
                        requirements for certain liquid streams
                        in open systems, in § 63.149(e) (1) and
                        (2), refer to "a chemical manufacturing
                        process unit subject to the new source
                        requirements of 40 CFR 63.100(1)  (1) or
                        (2)," the phrase "a new affected source
                        as described in § 63.1420(a)(4)," shall
                        apply for the purposes of this subpart.
  (13) When the HON Notification of
Compliance Status requirements
contained in §63.152(b) are referred to
in the HON process wastewater
provisions in §63.138 or §63.146, the
Notification of Compliance Status
requirements contained in
§63.1439(e)(5) shall apply for the
purposes of this subpart In addition,
when the HON process wastewater
provisions in §63.138 or §63.146
require that information be reported
according to § 63.152(b) in the HON
Notification of Compliance Status,
owners or operators of affected sources
shall report the specified information in
the Notification of Compliance Status
required by §63.1439(e)(5), for the
purposes of this subpart.
  (14) When the HON Periodic Report
requirements contained in §63.152(c)
are referred to in the HON process
wastewater provisions in § 63.146, the
Periodic Report requirements contained
in § 63.1439(e)(6) shall apply for the
purposes of this subpart. In addition,
when § 63.146 requires that information
be reported in the HON Periodic Reports
required in §63.152 (c), owners or
operators of affected sources shall report
the specified information in the Periodic
Reports required in  §63.1439(e)(6), for
the purposes of this suhpart.
  (15) When the term "range" is used in
the HON requirements in §§ 63.132
through 63.149, the  term "level" shall
be used instead, for  the purposes of this
subpart. This level shall be determined
using the procedures specified in
parameter monitoring procedures in
§63.1438.
  (16) When the HON process
wastewater monitoring and inspection
provisions in §63.143 (f) specify that the
owner or operator shall establish the
range that indicates proper operation of
the treatment process or control
technique, the owner or operator shall
instead comply with the requirements
§63.1438 (c) or (d) for establishing
parameter level maximums/minimums,
for the purposes of this subpart.
  (17) When the HON process
wastewater provisions in § 63.146(b) (7)
and (8) require that  "the information on
parameter ranges specified in
§ 63.152(b)(2)" be reported in the HON
Notification of Compliance Status,
owners and operators of affected sources
are instead required to report the
information on parameter levels in the
Notification of Compliance Status as
specified in §63.1439(e)(5)(ii), for the
purposes of this subpart.
  (18) For the purposes of this subpart,
the owner or operator is not required to
comply with the HON process
wastewater emission reduction
provisions in §63.138(g).

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              Federal Register/Vol.  64, No. 104/Tuesday, June 1, 1999/Rules and  Regulations
                                                                    29469
  (19) When the provisions of HON
process wastewater provisions in
§63.139(c)(l)(ii), §63.145(d)(4), or
§ 63.145(i)(2) specify that Method 18, 40
CFR part 60, appendix A shall be used,
Method 18 or Method 25A, 40 CFR part
60, appendix A may be used for the
purposes of this subpart. The use of
Method 25A, 40 CFR part 60, appendix
A shall comply with paragraphs (a) (19)
(i) and (ii) of this section.
  (i) The organic HAP used as the
calibration gas for Method 25A, 40 CFR
part 60, appendix A shall be the single
organic HAP representing the largest
percent by volume of the emissions.
  (ii) The use of Method 25A, 40 CFR
part 60, appendix A is acceptable if the
response from the high-level calibration
gas is at least 20 times the standard
deviation of the response from the zero
calibration gas when the instrument is
zeroed on the most sensitive scale.
  (20) The owner or operator of a
facility which receives a Group 1
wastewater stream, or a residual
removed from  a Group 1 wastewater
stream, for treatment pursuant to the
HON provisions in §63.132(g) is subject
to the requirements of § 63.132(g), with
the differences identified in this section,
and is not subject to the NESHAP from
off-site waste and recovery operations in
40 CFR part 63, subpart DD, with
respect to the received material.
  (b) Maintenance wastewater. The
owner or operator of each affected
source shall comply with the HON
maintenance wastewater requirements
in § 63.105, with the exceptions noted
in paragraphs  (b) (1),  (2), and (3) of this
section.
   (1) When the HON  maintenance
wastewater provisions in §63.105(a)
refer to "organic HAPs," the definition
of "organic HAP" in §63.1423 shall
apply, for the purposes of this subpart.
   (2) When the term "maintenance
wastewater" is used in the HON
maintenance wastewater provisions in
§63.105, the definition of "maintenance
wastewater" in § 63.1423 shall apply,
for the purposes of this subpart.
   (3) When the term "wastewater" is
used in the HON maintenance
wastewater provisions in § 63.105, the
definition of "wastewater" in § 63.1423
shall apply, for the purposes of this
subpart.
   (c) Compliance date. The compliance
 date for the affected source subject to
the provisions of this section is
specified in §63.1422.

 § 63.1434  Equipment  leak provisions.
   (a) The owner or operator of each
affected source shall  comply with the
HON equipment leak requirements in 40
 CFR part 63, subpart H for all
equipment in organic HAP service,
except as specified in paragraphs (b)
through (g) of this section.
  (b) The compliance date for the
equipment leak provisions in this
section is provided in §63.1422 (d).
  (c) Affected sources subject to the
HON equipment leak provisions in 40
CFR part 63, subpart I shall continue to
comply with 40 CFR part 63, subpart I
until the compliance date specified in
§ 63.1422. After the compliance date in
§ 63.1422. the source shall be subject to
this subpart  (40 CFR part 63, subpart
PPP), and shall no longer be subject to
40 CFR part  63, subpart I. However,
sources subject to 40 CFR part 63,
subpart I that have elected to comply
through a quality improvement
program, as specified in the HON
quality improvement plans for valves or
pumps in §63.175 or §63.176 or both,
may elect to continue these programs
without interruption as a means of
complying with this subpart. In other
words, becoming subject to this subpart
does not restart or reset the "compliance
clock" as it relates to reduced burden
earned through a quality improvement
program.
  (d) When the HON equipment leak
Initial Notification requirements
contained in §63.182(a)(l) and
§ 63.182(b) are referred to in 40 CFR part
63, subpart H,  the owner or operator
shall comply with the Initial
Notification requirements contained in
§ 63.1439(e)(3), for the purposes of this
subpart. The Initial Notification shall be
submitted no later than June 1, 2000 for
existing sources, as stated in
§63.1439(e)(3)(ii)(A).
  (e) The HON equipment leak
Notification of Compliance  Status
required by  § 63.182 (a) (2) and
§ 63.182(c) shall be submitted within
 150 days (rather than 90 days) of the
applicable compliance date specified in
§ 63.1422 for the equipment leak
provisions. The notification may be
submitted as part of the Notification of
Compliance Status required by
§63.1439(e)(5).
   (f) The Periodic Reports required by
§63.182(a)(3) and §63.182(d) may be
submitted as part of the Periodic
Reports required by §63.1439(e)(6).
   (g) If specific items of equipment,
 comprising  part of a process unit subject
 to this subpart, are managed by different
 administrative organizations (e.g.,
 different companies, affiliates,
 departments, divisions, etc.), those
 items of equipment may be aggregated
 with any PMPU within the affected
 source for all purposes under subpart H,
 providing there is no delay in achieving
 the applicable compliance date.
  (h) The phrase "the provisions of
subparts F, I, or PPP of this part" shall
apply instead of the phrase "the
provisions of subparts F or I of this
part." and instead of the phrase "the
provisions of subpart F or I of this part"
throughout §§ 63.163 and 63.168, for the
purposes of this subpart. In addition,
the phrase "subparts F, I, and PPP"
shall apply instead of the phrase
"subparts F and I" in §63.174(c)(2)(iii),
for the purposes of this subpart.

§ 63.1435  Heat exchanger provisions.
  (a) The owner or operator of each
affected source shall comply with the
requirements of § 63.104 for heat
exchange systems, with the exceptions
noted in paragraphs (b) through (e) of
this section.
  (b) When the term "chemical
manufacturing process unit" is used in
§63.104, the term "polyether polyols
manufacturing process unit" shall apply
for the purposes of this subpart. Further,
when the phrase "a chemical
manufacturing process unit meeting the
conditions of §63.100(b)(l)  through (3)
of this subpart, except for chemical
manufacturing process units meeting
the condition specified in § 63.100(c) of
this subpart" is used in §63.104(a), the
term "PMPU, except for PMPU meeting
the conditions specified  in §63.1420(b)"
shall apply for the purposes of this
subpart.
   (c) When the HON heat exchange
system requirements in §63.104(c)(3)
and §63.104(f)(l) specify that the
monitoring plan and records required by
§63.104(f)(l)(i) through (iv) shall be
kept as specified in the HON general
compliance, reporting, and
recordkeeping provisions in § 63.103(c),
the provisions of the general
recordkeeping and reporting
requirements in §63.1439(a) and the
applicable provisions of the General
Provisions in 40 CFR part 63, subpart A,
as specified in Table 1 of this subpart,
shall apply for the purposes of this
subpart.
   (d) When the HON heat exchange
system requirements in § 63.104(f)(2)
require information to be reported in the
Periodic Reports required by the HON
general reporting provisions in
§63.152(c), the owner or operator shall
instead report the information specified
in §63.104(f)(2) in the Periodic Reports
required by the general reporting
requirements in § 63.1439(e)(6), for the
purposes of this subpart.
   (e) When the HON heat exchange
system requirements in § 63.104 refer to
Table 4 of 40 CFR part 63, subpart F or
Table 9 of 40 CFR part 63, subpart G, the
 owner or operator is only required to
 consider organic HAP listed in Table 4

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 of 40 CFR part 63, subpart F or 40 CFR
 part 63, Table 9 of subpart G that are
 also listed on Table 4 of this subpart, for
 the purposes of this subpart.

 §63.1436  [Reserved]

 § 63.1437  Additional requirements for
 performance testing.
   (a) Performance testing shall be
 conducted In accordance with
 §63.7(a)(l),(a)(3), (d), (e)(l),(e)(2),
 (e)(4), (g), and (h), with the exceptions
 specified in paragraphs (a) (1) through
 (4) of this section and the additions
 specified in paragraph (b) of this
 section.
   (1) Performance tests shall be
 conducted according to the General
 Provisions' performance  testing
 requirements in §63.7(e)(l) and (2),
 except that for all emission sources
 except process vents from batch unit
 operations, performance  tests shall be
 conducted during maximum
 representative operating  conditions for
 the process achievable during one of the
 time periods described in paragraph
 (a) (l)(i) of this section, without causing
 any of the situations described in
 paragraph (a)(l)(ii) or (iii) of this section
 to occur. For process vents from batch
 unit operations, performance tests shall
 be conducted at absolute worst-case
 conditions, as defined in
 §63.1426(c)(3)(i)(B), that are achievable
 during one of the time periods described
 in paragraph (a)(l)(i) of this section,
 without causing any of the situations
 described in paragraph (a)(l)(ii) or (iii)
 of this section to occur.
   (i) The 6-month period that ends 2
 months before the Notification of
 Compliance Status is due, according to
 §63.1439(e)(5); or the 6-month period
 that begins 3 months before the
 performance  test and ends 3 months
 after the performance test.
   (ii) Causing damage to equipment;
 necessitating that the owner or operator
 make a product that does not meet an
 existing specification for  sale  to a
 customer; or necessitating that the
 owner or operator make a product in
 excess of demand.
  (iii) Causing plant or testing personnel
 to be subject to unsafe conditions.
 Owners or operators that  limit testing
 based on this paragraph shall  maintain
 documentation that demonstrates the
 nature of the unsafe conditions and
 explains measures considered by the
 owner or operator to overcome these
 conditions. If requested, this
 documentation shall be provided to the
 Administrator.
  (2) When the General Provisions'  data
analysis, recordkeeping, and reporting
requirements in § 63.7(g) refer to the
                        Notification of Compliance Status
                        requirements in § 63.9(h), the
                        Notification of Compliance Status
                        requirements in §63.1439(e)(5) shall
                        instead apply, for the purposes of this
                        subpart.
                          (3) Because the General Provisions'
                        site-specific test plan in § 63.7 (c) (3) is
                        not required, the General Provisions'
                        requirement for the Administrator to
                        approve or deny site-specific test plans,
                        in § 63.7(h)(4)(ii), is not applicable for
                        the purposes of this subpart.
                          (4) The owner or operator of an
                        affected source shall provide the
                        Administrator at least 30 days prior
                        notice of any performance test, except as
                        specified under other subparts, to afford
                        the Administrator the opportunity to
                        have an observer present. If after 30
                        days notice for an initially scheduled
                        performance test, there is a delay (due
                        to operational problems, etc.) in
                        conducting the scheduled performance
                        test, the owner or operator of an affected
                        source shall notify the Administrator (or
                        delegated State or local agency) as soon
                        as possible of any delay in the original
                        test date, either by providing  at least 7
                        days prior notice of the rescheduled test
                        date of the performance test, or by
                        arranging a rescheduled date  with the
                        Administrator (or delegated State or
                        local agency) by mutual agreement.
                          (b) Data shall be reduced in
                        accordance with the EPA approved
                        methods specified in the applicable
                        subpart or, if other test methods are
                        used, the data and methods shall be
                        validated according to the protocol in
                        Method 301, 40 CFR part 63, appendix
                        A.
                          (c) Notwithstanding any other
                        provision of this subpart, if an owner or
                        operator of an affected source uses a
                        flare to comply with any of the
                        requirements of this subpart, the owner
                        or operator shall comply with
                        paragraphs (c)(l)  through (3) of this
                        section. The owner or operator is not
                        required to conduct a performance test
                        to determine percent emission reduction
                        or outlet organic HAP or TOC
                        concentration. If a compliance
                        demonstration has been conducted
                        previously for a flare, using the
                        techniques specified in paragraphs (c)(l)
                        through (3) of this section, that
                        compliance demonstration may be used
                        to satisfy the requirements of this
                        paragraph if either no deliberate process
                        changes have been made since the
                        compliance demonstration, or the
                        results of the compliance demonstration
                        reliably demonstrate compliance despite
                        process changes.
                          (1) Conduct a visible emission test
                        using the techniques specified in
                        § 63.11 (b) (4) of the General Provisions;
   (2) Determine the net heating value of
 the gas being combusted, using the
 techniques specified in § 63.11 (b) (6) of
 the General Provisions; and
   (3) Determine the exit velocity using
 the techniques specified in either
 §63.11(b)(7)(i) (and §63.11(b)(7)(iii),
 where applicable) or §63.11 (b)1(8) of the
 General Provisions, as appropriate.

 § 63.1438  Parameter monitoring levels and
 excursions.
   (a) Establishment of parameter
 monitoring levels^ The owner or
 operator of a combustion, recovery, or
 recapture device that has one or more
 parameter monitoring level
 requirements specified under this
 subpart shall establish a maximum or
 minimum level for each measured
 parameter. If a performance test is
 required by this subpart for a
 combustion, recovery, or recapture
 device, the owner or operator shall use
 the procedures in either paragraph (b)  or
 (c) of this section to establish the
 parameter monitoring level(s). If a
 performance test is not required by this
 subpart for a combustion, recovery, or
 recapture device, the owner or operator
 may use the procedures in paragraph
 (b), (c), or (d) of this section to establish
 the parameter monitoring levels. When
 using the procedures specified in
 paragraph (c) or (d) of this section, the
 owner or operator shall submit the
 information specified in
 §63.1439(e)(4)(viii) for review and
 approval, as part of the Precompliance
 Report.
   (l) The owner or operator shall
 operate combustion, recovery, and
 recapture devices such that the daily
 average value of monitored parameters
 remains at or above the minimum
 established level, or remains at or below
 the maximum established level, except
 as otherwise provided in this subpart.
   (2)  As specified in § 63.1439(e)(5)(ii),
 all established levels, along with their
 supporting documentation and the
 definition of an operating day, shall be
 submitted as part of the Notification of
 Compliance Status.
   (3) Nothing in this section shall be
 construed to allow a monitoring
 parameter excursion caused by an
 activity that violates other applicable
 provisions of 40 CFR part 63, subparts
 A,F.G,orH.
   (b) Establishment of parameter
 monitoring levels based exclusively on
performance tests. In cases where a
 performance test is required by this
subpart, or the owner or operator of the
affected source elects to do a
performance test in accordance with the
provisions of this subpart, and an owner
or operator elects to establish a

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                                                                      29471
parameter monitoring level for a
combustion, recovery, or recapture
device based exclusively on parameter
values measured during the
performance test, the owner or operator
of the affected source shall comply with
the procedures in paragraph (b)(l) or (2)
of this section, as applicable.
  (1) Process vents from continuous unit
operations. During initial compliance
testing, the appropriate parameter shall
be continuously monitored during the
required 1-hour runs for process vents
from continuous unit operations. The
monitoring level(s) shall then be
established as the average of the
maximum (or minimum) point values
from the three 1-hour test runs. The
average of the maximum values shall be
used when establishing a maximum
level, and the average of the minimum
values shall be used when establishing
a minimum level.
  (2) Process vents from batch unit
operations. For process vents from batch
unit operations, during initial
compliance testing, the appropriate
parameter shall be monitored
continuously during the entire test
period. The monitoring level(s) shall be
those established during from the
compliance test.
  (c) Establishment of parameter
monitoring levels based on performance
tests, supplemented by engineering
assessments and/or manufacturer's
recommendations. Parameter
monitoring levels established under this
paragraph shall be based on the
parameter values measured during the
performance test supplemented by
engineering assessments and/or
manufacturer's recommendations.
Performance testing is not required to be
conducted over the entire range of
expected parameter values. The
information specified in paragraphs
(c)(l) and (2) of this section shall be
provided in the Notification of
Compliance Status.
   (1) The specific level of the monitored
parameter(s) for each emission point.
   (2) The rationale for the specific level
for each parameter for each emission
point, including any data and
calculations used to develop the level
and a description of why the level
indicates proper operation of the
combustion, recovery, or recapture
device.
   (d) Establishment of parameter
monitoring based on engineering
 assessments and/or manufacturer's
recommendations. If a performance test
 is not required by this subpart for a
 combustion, recovery, or recapture
 device, the maximum or minimum level
may be based solely on engineering
 assessments and/or manufacturers'
recommendations. As required in
paragraph (a) (2) of this section, the
determined level and all supporting
documentation shall be provided in the
Notification of Compliance Status.
  (e) Monitoring violations. (1) With the
exception of excursions excused in
accordance with paragraph (g) of this
section, each excursion, as defined in
paragraphs (f)(l)(i), (f)(2)(i)(A), (f)(2)(ii),
(f)(3)(i), and (f)(4) of this section,
constitutes a violation of the provisions
of this subpart in accordance with
paragraph (e)(l)(i), (ii), or (iii) of this
section.
  (i) For each condenser, each excursion
constitutes a violation of the emission
limit.
  (ii) For each recovery or recapture
device other than a condenser, where an
organic monitoring device is used to
monitor concentration, each excursion
constitutes a violation of the emission
limit.
  (iii) For each combustion, recovery, or
recapture device other than a condenser,
each excursion constitutes a violation of
the operating limit.
  (2) With the exception of excursions
excused in accordance with paragraph
(g) of this section, each excursion, as
defined in paragraphs (f)(l)(ii), (f)(l)(iii),
(f)(2)(i)(B), and (f)(3)(ii) of this section
constitutes a violation of the operating
limit.
  (f) Parameter monitoring excursion
definitions.  Parameter monitoring
excursions are defined in paragraphs
(f)(l) through (3) of this section.
  (1) With respect to storage vessels
(where the applicable monitoring plan
specifies continuous monitoring),
process vents from continuous unit
operations using combustion, recovery,
or recapture devices for purposes of
compliance, and for process wastewater
streams, an excursion means any of the
three cases listed in paragraphs (f)(l)(i)
through (iii) of this section.
  (i) The daily average value of one or
more monitored parameters is above the
maximum level or below the minimum
level established for the given
parameters.
  (ii) The period of combustion,
recovery, or recapture device operation,
with the exception noted in paragraph
(f)(l)(v) of this section, is 4 hours or
greater in an operating day and
monitoring data are insufficient, as
defined in paragraph (f)(l)(iv) of this
section, to constitute a valid hour of
data for at least 75 percent of the
operating hours.
   (iii) The period of combustion,
recovery, or recapture device operation,
with the exception noted in paragraph
 (f)(l)(v) of this section, is less than 4
hours in an operating day and more
than 2 of the hours during the period of
operation do not constitute a valid hour
of data due to insufficient monitoring
data, as defined in paragraph (f)(l)(iv) of
this section.
  (iv) Monitoring data are insufficient to
constitute a valid hour of data, as used
In paragraphs (f)(l)(ii) and (iii) of this
section, if measured values are
unavailable due to monitoring system
breakdowns, repairs, calibrated checks,
or zero (low-level) and high level
adjustments, for any of the 15-minute
periods within the hour. For data
compression systems approved under
§ 63.1439(g)(3), monitoring data are
insufficient to calculate a valid hour of
data if there are less than four data
measurements made during the hour.
  (v) The periods listed in paragraphs
(f)(l)(v)(A) through (D) of this section
are not considered to be part of the
period of combustion, recovery, or
recapture device operation, for the
purposes of paragraphs (f)(l)(ii) and (iii)
of this section.
  (A) Start-ups;
  (B) Shutdowns;
  (C) Malfunctions; or
  (D) Periods of non-operation of the
affected source (or portion thereof),
resulting in cessation of the emissions to
which the monitoring applies.
  (2) For storage vessels where the
applicable monitoring plan does not
specify continuous monitoring, an
excursion is defined in paragraph
(f)(2)(i) or (ii) of this section, as
applicable.
  (i) If the monitoring plan specifies
monitoring a parameter and recording
its value at specific intervals (such as
every 15 minutes or every hour), either
of the cases listed in paragraph
(f)(2)(i)(A) or (B) of this section is
considered a single excursion for the
combustion device.
  (A) When the average value of one or
more parameters, averaged over the time
during which the storage vessel is being
filled (i.e., when the liquid level in the
storage vessel is being raised), is above
the maximum level or below the
minimum level established for the given
parameters.
  (B) When monitoring data are
insufficient. Monitoring data shall be
considered insufficient when measured
values are not available, due to
monitoring system breakdowns, repairs,
calibration checks, or zero (low-level)
and high-level adjustments, for at least
75 percent of the specific intervals at
which parameters are to be monitored
and recorded, according to the storage
vessel's monitoring plan, during which
the storage vessel is being filled.
   (ii) If the monitoring plan does not
specify monitoring a parameter and

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recording its value at specific intervals
(for example, if the relevant operating
requirement is to exchange a disposable
carbon canister before expiration of its
rated service life), the monitoring plan
shall define an excursion in terms of the
relevant operating requirement.
  (3) With respect to process vents from
batch unit operations, an excursion
means one of the two cases listed in
paragraphs (f)(3)(i) and (ii) of this
section.
  (i) When the daily average value of
one or more monitored parameters is
above the maximum or below the
minimum established level for the given
parameters.
  (ii) When monitoring data are
insufficient for an operating day.
Monitoring data  shall be considered
insufficient when measured values are
not available, due to monitoring system
breakdowns, repairs, calibration checks,
or zero (low-level) and high-level
adjustments, for  at least 75 percent of
the 15-minute periods when  batch
emission episodes selected to be
controlled are being vented to the
control device during the operating day,
using the procedures specified  in
paragraphs (f) (3)  (ii) (A) through (D) of
this section.
  (A) Determine  the total amount of
time during the operating day when
batch emission episodes selected to be
controlled are being vented to the
control device.
  (B) Subtract the time during the
periods listed in  paragraphs
(f)(3)(ii)(B)(J) through (4) of this section
from the total amount of time
determined above in paragraph
(f)(3)(ii)(A) of this section, to obtain the
operating time used to determine if
monitoring data are insufficient.
  (1) Start-ups;
  (2) Shutdowns;
  (3) Malfunctions; or
  (4) Periods of non-operation of the
affected source (or portion thereof),
resulting in cessation of the emissions to
which the monitoring applies.
  (C) Determine  the total number of 15-
minute periods in the operating time
used to determine If monitoring data are
insufficient, as was determined in
accordance with  paragraph (f)(3)(ii)(B)
of this section.
  (D) If measured values are not
available for at least 75 percent of the
total number of 15-minute periods
determined in paragraph (f)(3)(ii)(C) of
this section, the monitoring data are
insufficient for the operating day.
  (4) With respect to process vents
using ECO to reduce epoxide emissions,
an excursion means any of the
situations described in § 63.1427(i)(3)(i)
through (v). For each excursion, the
                        owner or operator shall be deemed out
                        of compliance with the provisions of
                        this subpart, in accordance with
                        paragraph (e) of this section, except as
                        provided in paragraph (g) of this
                        section.
                          (g) Excused excursions. A number of
                        excused excursions shall be allowed for
                        each combust'on, recovery, or recapture
                        device for each semiannual period. The
                        number of excused excursions for each
                        semiannual period is specified in
                        paragraphs (g)(l) through (6) of this
                        section. This paragraph applies to  -
                        affected sources required to submit
                        Periodic Reports semiannually or
                        quarterly. The first semiannual period is
                        the 6-month period starting the date the
                        Notification  of Compliance Status is
                        due.
                          (1) For the first semiannual period—
                        six excused excursions.
                          (2) For the second semiannual
                        period—five excused excursions.
                          (3) For the third semiannual period—
                        four excused excursions.
                          (4) For the fourth semiannual
                        period—three excused excursions.
                          (5) For the fifth semiannual period-
                        two excused excursions.
                          (6) For the sixth and all subsequent
                        semiannual periods—one excused
                        excursion.

                        § 63.1439 General recordkeeplng and
                        reporting provisions.
                          (a) Data retention. Unless otherwise
                        specified in this subpart, the owner or
                        operator of an affected source shall keep
                        copies of all  applicable records and
                        reports required by this subpart for at
                        least 5 years. All applicable records
                        shall be maintained in such a manner
                        that they can be readily accessed. The
                        most recent 6 months of records shall be
                        retained on site or shall be accessible
                        from a central location by computer or
                        other means  that provide access within
                        2 hours after a request. The remaining
                        4 and one-half years of records may be
                        retained offsite. Records may be
                        maintained in hard copy or computer-
                        readable form including, but not limited
                        to, on microfilm, computer, floppy disk,
                        magnetic tape, or microfiche. If an
                        owner or operator submits copies of
                        reports to the applicable EPA Regional
                        Office, the owner or operator is not
                        required to maintain copies of reports.
                        If the EPA Regional Office has waived
                        the requirement of §63.10(a)(4)(ii) for
                        submittal of copies of reports, the owner
                        or operator is not required to maintain
                        copies of reports.
                          (b) Subpart A requirements. The
                        owner or operator of an affected source
                        shall comply with the applicable
                        recordkeeping and reporting
                        requirements in  40 CFR part 63, subpart
A (the General Provisions) as specified
in Table 1 of this subpart. These
requirements Include, but are not
limited to, the requirements specified in
paragraphs (b) (1) and (2) of this section.
  (1) Start-up, shutdown, and
malfunction plan. The owner or
operator of an affected source shall
develop and implement a written start-
up, shutdown, and malfunction plan as
specified in the General Provisions'
requirements for a Startup, Shutdown,
and Malfunction Plan in § 63.6(e) (3).
This plan shall describe, in detail,
procedures for operating and
maintaining the affected source during
periods  of start-up, shutdown, and
malfunction and a program for
corrective action for malfunctioning
process  and air pollution control
equipment used to comply with this
subpart. A provision for ceasing to
collect, during a start-up, shutdown, or
malfunction, monitoring data that
would otherwise be required by the
provisions of this  subpart may be
included in the start-up, shutdown, and
malfunction plan  only if the owner or
operator has demonstrated to the
Administrator, through the
Precompliance Report or a supplement
to the Precompliance Report, that the
monitoring system would be damaged
or destroyed if it were not shut down
during the start-up, shutdown, or
malfunction. The  owner or operator of
the affected source shall keep the start-
up, shutdown, and malfunction plan on
site. In addition, if the start-up,
shutdown, and malfunction plan is
revised, the owner or operator shall
keep previous (i.e., superseded) versions
of the start-up, shutdown, and
malfunction plan for a period of 5 years
after each revision to the plan. If the
new version of the start-up, shutdown,
and malfunction plan  includes a
provision for ceasing to collect, during
a start-up, shutdown, or malfunction,
monitoring data that would otherwise
be required, the owner or operator shall
submit a supplement to the
Precompliance Report to the
Administrator for  the Administrator's
approval, documenting that the
monitoring system would be damaged
or destroyed if it were not shut down
during the start-up, shutdown, or
malfunction. Records associated with
the  plan shall be kept as specified in
paragraphs (b)(l)(i)(A) and (B) of this
section.  Reports related to the plan shall
be submitted as specified in paragraph
(b)(l)(ii) of this section.
  (i) The owner or operator shall keep
the  records specified in paragraphs
(b)(l)(i)(A) and (B) of this section.
  (A) Records of the occurrence and
duration of each start-up, shutdown.

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                                                                     29473
and malfunction of operation of process
equipment or combustion, recovery, or
recapture devices or continuous
monitoring systems used to comply
with this subpart during which excess
emissions (as defined in §63.1420(h)(4))
occur.
  (B) For each start-up, shutdown, or
malfunction during which excess
emissions (as defined in §63.1420(h)(4))
occur, records reflecting whether the
procedures specified in the affected
source's start-up, shutdown, and
malfunction plan were followed, and
documentation of actions taken that are
not consistent with the plan. For '
example, if a start-up, shutdown, and
malfunction plan includes procedures
for routing a combustion, recovery, or
recapture device to a backup
combustion, recovery, or recapture
device, records shall be kept of whether
the plan was followed. These records
may take the form of a "checklist," or
other form of recordkeeping that
confirms conformance with the start-up,
shutdown, and malfunction plan for the
event.
  (ii) For the purposes of this subpart,
the semiannual start-up, shutdown, and
malfunction reports shall be submitted
on the same  schedule as the Periodic
Reports required under paragraph (e) (6)
of this section instead of according to
the General Provisions' Periodic
Reporting schedule specified in
§63.10(d)(5)(i). The reports shall
include the information specified in
paragraphs (b)(l)(i)(A) and  (B) of this
section and shall contain the name, title,
and signature of the owner or operator
or other responsible official who is
certifying its accuracy.
  (2) Application for approval of
construction or reconstruction. For new
affected sources, the owner or operator
shall comply with the General
Provisions' requirements for the
application for approval of construction
or reconstruction, as specified in § 63.5,
excluding the provisions specified in
§63.5(d)(l)(ii)(H), (d)(l)(iii), (d)(2), and
  (c) Subpart H requirements. The
owner or operator of an affected source
shall comply with the HON equipment
leak reporting and recordkeeping
requirements in 40 CFR part 63, subpart
H, except as specified in § 63.1434 (b)
through (g).
  (d) Recordkeeping and
documentation. The owner or operator
required to keep continuous records
shall keep records as specified in
paragraphs (d) (1) through (7) of this
section, unless an alternative
recordkeeping system has been
requested and approved as specified in
paragraph (g) of this section, and except
as provided in paragraph (h) of this
section. If a monitoring plan for storage
vessels pursuant to § 63.1432(1) requires
continuous records, the monitoring plan
shall specify which provisions, if any, of
paragraphs (d) (1) through (7) of this
section apply. As described in
§ 63.1432(i), certain storage vessels are
not required to keep continuous records
as specified in this paragraph. The
owner or operator of such storage
vessels shall keep records as specified
In the monitoring plan required by
§63.1432(1).
  (1) The monitoring system shall
measure data values at least once during
approximately equal 15-minute
intervals.
  (2) The owner or operator shall record
either each measured data value or
block average values for 1 hour or
shorter periods calculated from all
measured data values during each
period. If values are measured more
frequently than once per minute, a
single value for each minute may be
used to calculate the hourly (or shorter
period) block average instead of all
measured values. The owner or operator
of process vents from batch unit
operations shall record each measured
data value.
  (3) Daily average values of each
continuously monitored parameter shall
be calculated for each operating day as
specified in paragraphs (d)(3)(i) through
(ii)  of this section, except as specified in
paragraphs (d) (6) and (7) of this section.
  (i) The daily average value shall be
calculated as the average of all
parameter values recorded during the
operating day, except as specified in
paragraph (d) (7) of this section. The
calculated average shall cover a 24-hour
period if operation is continuous. If
intermittent emissions episodes occur
resulting in emissions being vented to a
combustion, recapture, or recovery
device for a period of less than 24 hours
in the operating day, the daily average
shall be calculated based only on the
period when emissions are being vented
to the combustion, recapture, or
recovery device. For example, If a batch
unit operation operates such that
emissions are vented to a combustion
device for 6 hours, then the daily
average is the average of the temperature
measurements taken during those 6
hours.
  (ii) The operating day shall be the 24-
hour period that the owner or operator
specifies in the operating permit or the
Notification of Compliance Status, for
purposes of determining daily average
values.
  (4) [Reserved]
  (5) [Reserved]
  (6) If all recorded values for a
monitored parameter during an
operating day are above the minimum
level or below the maximum level
established in the Notification of
Compliance Status or operating permit,
the owner or operator may record that
all values were above the minimum
level or below the maximum level rather
than calculating and recording a daily
average for that operating day.
  (7) Monitoring data recorded during
periods identified in paragraphs (d)(7)(i)
through (v) of this section shall not be
Included in any average computed
under this subpart. Records shall be
kept of the times and durations of all
such periods and any other periods
during process or combustion, recovery,
or recapture device operation when
monitors are not operating.
  (i) Monitoring system breakdowns,
repairs, calibration checks, and zero
(low-level) and high-level adjustments;
  (ii) Start-ups;
  (iii) Shutdowns;
  (iv) Malfunctions; or
  (v) Periods of non-operation of the
affected source (or portion thereof),
resulting in cessation of the emissions to
which the monitoring applies.
  (8) For continuous monitoring
systems used to comply with this
subpart, records documenting the
completion of calibration checks, and
records documenting the maintenance
of continuous monitoring systems that
are specified in the manufacturer's
Instructions or that are specified in
other written procedures that provide
adequate assurance that the equipment
would reasonably be expected to
monitor accurately.
  (9) The owner or operator of an
affected source granted a waiver of
recordkeeping or reporting requirements
under the  General Provisions'
recordkeeping and reporting
requirements in §63.10(f) shall maintain
the information, if any, specified by the
Administrator as a condition of the
waiver of recordkeeping or reporting
requirements.
  (e) Reporting and notification. In
addition to the reports and notifications
required by 40 CFR part  63, subpart A,
as specified in this subpart, the owner
or operator of an affected source shall
prepare and submit the reports listed in
paragraphs (e)(3) through (8) of this
section, as applicable. All reports
required by this subpart, and the
schedule for their submittal, are listed
In Table 8 of this subpart.
  (1) Violation of reporting
requirements. Owners and operators
shall not be in violation  of the reporting
requirements of this paragraph (e) for
failing to submit information required to

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 be included in a specified report if the
 owner or operator meets the
 requirements in paragraphs (e)(l)(i)
 through (iii) of this section. Examples of
 circumstances where this paragraph
 may apply include information related
 to newly-added equipment or emission
 points, changes in the process, changes
 in equipment required or utilized for
 compliance with the requirements of
 this subpart, or changes in methods or
1 equipment  for monitoring,
 recordkeeping, or reporting.
   (i) The information was not known in
 time for inclusion in the report specified
 by this subpart.
   (ii) The owner or operator has been
 diligent in obtaining the information.
   (iii) The owner or operator submits a
 report according to the provisions of
 paragraphs (e)(l)(iii)(A) through (C) of
 this section.
   (A) If this subpart expressly provides
 for supplements to the report in which
 the information is required, the owner
 or operator shall submit the information
 as a supplement to that report. The
 information shall be submitted no later
 than 60 days after it is obtained, unless
 otherwise specified in this subpart.
   (B) If this subpart does not expressly
 provide for supplements, but the owner
 or operator must submit a request for
 revision of an operating permit pursuant
 to the State operating permit programs
 in part 70 or the Federal operating
 permit programs in part 71, due to
 circumstances to which the information
 pertains, the owner or operator shall
 submit the information with the request
 for revision to the operating permit.
   (C) In any case not addressed by
 paragraph (e)(l)(iii)(A) or (B) of this
 section, the owner or operator shall
 submit the information with the first
 Periodic Report, as required by this
 subpart, which has a submission
 deadline at least 60 days after the
 information is obtained.
   (2) Submittal of reports. All reports
 required under this subpart shall be sent
 to the Administrator at the applicable
 address listed in the General Provisions'
 list of addresses of State air pollution
 control agencies and EPA Regional
 Offices, in §63.13. If acceptable to both
 the Administrator and the owner or
 operator of a source, reports may be
 submitted on electronic media.
   (3) Initial Notification. The owner or
 operator of an existing or new affected
 source shall submit a written Initial
 Notification to the Administrator,
 containing the information described in
 paragraph (e) (3) (i) of this section,
 according to the schedule in paragraph
 (e)(3)(ii) of this section. The General
 Provisions' Initial Notification
 requirements in §63.9 (b) (2), (3), and (6)
                        shall not apply, for the purposes of this
                        subpart.
                          (i) The Initial Notification shall
                        include the following information:
                          (A) The name and address of the
                        owner or operator;
                          (B) The address (physical location) of
                        the affected source;
                          (C) An identification of the kinds of
                        emission points within the affected
                        source;
                          (D) An identification of the relevant
                        standard, or other requirement, that is
                        the basis of the notification and the
                        source's compliance date; and
                          (E) A statement of whether or not the
                        affected source is a major source.
                          (ii) The Initial Notification shall be
                        submitted according to the schedule in
                        paragraph (e)(3)(ii)(A), (B), or (C) of this
                        section, as applicable.
                          (A) For an existing source, the Initial
                        Notification shall be submitted no later
                        than June 1, 2000.
                          (B) For a new source that has an
                        initial start-up on or after August 30,
                        1999, the application for approval of
                        construction or reconstruction required
                        by the General Provisions in § 63.5(d)
                        shall be submitted in lieu of the Initial
                        Notification. The application shall be
                        submitted as soon as practical before
                        construction or reconstruction is
                        planned to commence (but it need not
                        be sooner than August 30, 1999).
                          (C) For a new source that has an
                        initial start-up prior to August 30, 1999,
                        the Initial Notification shall be
                        submitted no later than August 30,
                        1999. The application for approval of
                        construction or reconstruction described
                        in the General Provisions' requirements
                        in §63.5(d)  is not required for these
                        sources.
                          (4) Precompliance Report. The owner
                        or operator of an affected source
                        requesting an extension for compliance;
                        requesting approval to use alternative
                        monitoring parameters, alternative
                        continuous  monitoring and
                        recordkeeping, or alternative controls;
                        requesting approval to incorporate a
                        provision for ceasing to collect
                        monitoring data, during a start-up,
                        shutdown, or malfunction, into the
                        start-up, shutdown, and malfunction
                        plan, when that monitoring equipment
                        would be damaged if it did not cease to
                        collect monitoring data, as permitted
                        under § 63.1420(h)(3); or requesting
                        approval to  establish parameter
                        monitoring levels according to the
                        procedures contained in §63.1438(c) or
                        (d) shall submit a Precompliance Report
                        according to the schedule described in
                        paragraph (e)(4)(i) of this section. The
                        Precompliance Report shall contain the
                        information specified in paragraphs
(e)(4)(ii) through (viii) of this section, as
appropriate.
  (i) The Precompliance Report shall be
submitted to the Administrator no later
than 12 months prior to the compliance
date. Unless the Administrator objects
to a request submitted in the
Precompliance Report within 45 days
after its receipt, the request shall be
deemed approved. For new affected
sources, the Precompliance Report shall
be submitted to the Administrator with
the application for approval of
construction or reconstruction required
in paragraph (b)(2) of this section.
Supplements to the Precompliance
Report may be submitted as specified in
paragraph (e)(4)(vii) of this section.
  (ii) A request for an extension for
compliance, as specified in § 63.1422(e),
may be submitted in the Precompliance
Report. The request for a compliance
extension shall include the data
outlined in the General Provisions'
compliance requirements in
§63.6(1)(6)(i)(A), (B), and (D), as
required in §63.1422(e)(l).
  (iii) The alternative monitoring
parameter information required in
paragraph (f) of this section shall  be
submitted in the Precompliance Report
if, for any emission point, the owner or
operator of an affected source seeks to
comply through the use of a control
technique other than those for which
monitoring parameters are specified  in
this subpart or in 40 CFR part 63,
subpart G, or seeks to comply by
monitoring a different parameter than
those specified in this subpart or in 40
CFR part 63, subpart G.
  (iv) If the affected source seeks to
comply using alternative continuous
monitoring and recordkeeping as
specified in paragraph (g) of this
section, the owner or operator shall
submit a request for approval in the
Precompliance Report.
  (v) The owner or operator shall report
the intent to use alternative controls to
comply with the provisions of this
subpart in the Precompliance Report.
The Administrator may deem
alternative controls to be equivalent  to
the controls required by the standard,
under the procedures outlined in the
General Provisions' requirements for use
of an alternative nonopacity emission
standard, in §63.6(g).
  (vi) If the owner or operator is
requesting approval to incorporate a
provision for ceasing to collect
monitoring data, during a start-up,
shutdown, or malfunction, Into the
start-up, shutdown, and malfunction
plan, when that monitoring equipment
would be damaged if it did not cease to
collect monitoring data, the information
specified in paragraphs (e)(4)(vi)(A) and

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                                                                     29475
 (B) of this section shall be supplied in
 the Precompliance Report or in a
 supplement to the Precompliance
 Report. The Administrator shall
 evaluate the supporting documentation
 and shall approve the request only if, in
 the Administrator's judgment, the
 specific monitoring equipment would
 be damaged by the contemporaneous
 start-up, shutdown, or malfunction.
   (A) Documentation supporting a claim
 that the monitoring equipment would be
 damaged by the contemporaneous start-
 up, shutdown, or malfunction; and
   (B) A request to incorporate such a
 provision for ceasing to collect
 monitoring data during a start-up,
 shutdown, or malfunction, into the
 start-up, shutdown, and malfunction
 plan.
   (vii) Supplements to the
 Precompliance Report may be submitted
 as specified in paragraph (e) (4) (vii) (A) of
 this section, or as specified in paragraph
 (e)(4)(vli)(B) of this section. Unless the
 Administrator  objects to a request
 submitted in a supplement to the
 Precompliance Report within 45 days
 after its receipt, the request shall be
 deemed approved.
   (A) Supplements to the
Precompliance Report may be submitted
 to clarify or modify information
 previously submitted.
   (B) Supplements to the Precompliance
 Report may be submitted to request
 approval to use alternative monitoring
 parameters, as  specified in paragraph
 (e)(4)(iii) of this section; to use
 alternative continuous monitoring and
 recordkeeping, as specified in paragraph
 (e) (4) (iv) of this section; to use
 alternative controls, as specified in
 paragraph (e)(4)(v) of this section; or to
 include a provision for ceasing to collect
 monitoring data during a start-up,
 shutdown, or malfunction, in the start-
 up, shutdown,  and malfunction plan,
when that monitoring equipment would
 be damaged if it did not cease to collect
 monitoring data,  as specified in
 paragraph (e)(4)(vi) of this section.
   (viii) If an owner or operator
 establishes parameter monitoring levels
 according to the procedures contained
 in the parameter monitoring provisions
 in §63.1438(c) or (d), the following
 information shall be submitted in the
Precompliance Report:
   (A) Identification of which procedures
 (i.e., § 63.1438(c) or (d)) are to be used;
and
  (B) A description of how the
parameter monitoring level is to be
established. If the procedures in
§ 63.1438(c) are to be  used, a description
of how performance test data will be
used shall be included.
   (5) Notification of Compliance Status.
For existing and new affected sources, a
Notification of Compliance Status shall
be submitted within 150 days after the
compliance dates specified in §63.1422.
For equipment leaks subject to
§63.1434, the owner or operator shall
submit the information specified in the
HON equipment leak Notification of
Compliance Status requirements in
§63.182(c), in the Notification of
Compliance Status required by this
paragraph. For all other emission points,
including heat exchange systems, the
Notification of Compliance Status shall
contain the information listed in
paragraphs (e)(5)(i) through (vii) of this
section.
   (i) The results of any emission point
group determinations, process section
applicability determinations,
performance tests, inspections,
continuous monitoring system
performance evaluations, any other
information required by the test method
to be in the test report used to
demonstrate compliance, values of
monitored parameters established
during performance tests, and any other
information required to be included in
a Notification of Compliance Status
under the requirements for overlapping
regulations in § 63.1422 (j), the HON
storage vessel reporting provisions in
§ 63.122 and the storage vessel
provisions in §63.1432, and the HON
process wastewater reporting provisions
in §63.146. In addition, the owner or
operator shall comply with paragraphs
(e)(5)(i)(A) and (B) of this section.
  (A) For performance tests, group
determinations, or determination that
controls are needed, the Notification of
Compliance Status shall include one
complete test report, as described in
paragraph (e)(5)(i)(B) of this section, for
each test method used for a particular
kind of emission point. For additional
tests performed for the same kind of
emission point using the same method,
the results and any other information
required by the test method to be in the
test report shall be submitted, but a
complete test report is not required.
  (B) A complete test report shall
include a brief process description,
sampling site description, description of
sampling and analysis procedures and
any modifications to standard
procedures, quality assurance
procedures, record of operating
conditions during the test, record of
preparation of standards (if the owner or
operator prepares the standards), record
of calibrations, raw data sheets for field
sampling, raw data sheets for field and
laboratory analyses, documentation of
calculations, and any other information
 required by the test method to be in the
 test report.
   (ii) For each monitored parameter for
 which a maximum or minimum level is
 required to be established under the
 HON process vent monitoring
 requirements in §63.114(e) and the
 process vent monitoring requirements in
 §63.1429(d), the HON process
 wastewater parameter monitoring
 requirements in §63.143(f), paragraph
 (e)(8) of this section, or paragraph (f) of
 this section, the information specified in
 paragraphs (e)(5)(ii)(A) through (C) of
 this section shall be submitted. Further,
 as described in the storage vessel
 provisions in §63.1432(k), for those
 storage vessels for which the parameter
 monitoring plan (required to be
 submitted under the HON Notification
 of Compliance Status requirements for
 storage vessels in § 63.120(d) (3))
 specifies compliance with the parameter
 monitoring provisions of § 63.1438, the
Downer or operator shall provide the
 information specified in paragraphs
 (e)(5)(ii)(A) through (C) of this section
 for each monitoring parameter. For
 those storage vessels for which the
 parameter monitoring plan required to
 be submitted under the HON
 Notification of Compliance Status
 requirements for storage vessels in
 § 63.120(d) (2)  does not require
 compliance with the provisions of
 § 63.1438, the owner or operator shall '
 provide the information specified in
 §63.120(d)(3)  as part of the Notification
 of Compliance Status.
  (A) The required information shall
 include the specific maximum or
 minimum level of the monitored
 parameters) for each emission point.
  (B)  The required information shall
 include the rationale for the specific
 maximum or minimum level for each
 parameter for each emission point,
 including any data and calculations
 used to develop the  level and a
 description of why the level indicates
 that the combustion, recovery, or
 recapture device is operated in a
 manner to ensure compliance with the
 provisions of this subpart.
  (C) The required information shall
 include a definition of the affected
 source's operating day, as specified in
 paragraph (d)(3)(ii) of this section, for
 purposes of determining daily average
 values of monitored parameters.
  (iii) The determination of
 applicability for flexible operation units
 as specified in §63.1420(e)(l)(iii).
  (iv) The parameter monitoring levels
 for flexible operation units, and the
 basis on which these levels were
 selected, or a demonstration that these
 levels are appropriate at all times, as
 specified in §63.1420(e)(7).

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  (v) The results for each predominant
use determination made under
§63.1420(f)(l) through (7), for storage
vessels assigned to an affected source
subject to this subpart.
  (vi) If any emission point is subject to
this subpart and to other standards as
specified in §63.1422(j), and if the
provisions of §63.1422(j) allow the
owner or operator to choose which
testing, monitoring, reporting, and
recordkeeping provisions will be
followed, then the Notification of
Compliance Status shall indicate which
rule's requirements will be followed for
testing, monitoring, reporting, and
recordkeeping.
  (vii) An owner or operator who
transfers a Group 1 wastewater stream
or residual removed from a Group 1
wastewater stream for treatment
pursuant to § 63.132(g) shall include in
the Notification of Compliance Status
the name and location of the transferee
and a description of the Group 1
wastewater stream or residual sent to
the treatment facility.
  (6) Periodic Reports. For existing and
new affected sources, the owner or
operator shall submit Periodic Reports
as specified  in paragraphs (e)(6)(i)
through (viii) of this section. In
addition,.for equipment leaks subject to
§ 63.1434, the owner or operator shall
submit the information specified in the
HON periodic reporting requirements in
§ 63.182(d), and for heat exchange
systems subject to §63.1434, the owner
or operator shall submit the information
specified in the HON heat exchange
system reporting requirements in
§ 63.104 (f) (2), as part of the Periodic
Report required by this paragraph (e)(6).
  (i) Except as specified in paragraphs
(e) (6) (viii) of this section, a report
containing the information in paragraph
(e)(6)(ii) of this section or paragraphs
(e)(6)(iii) through (vii) of this section, as
appropriate, shall be submitted
semiannually no later than 60 days after
the end of each 180-day period. The first
report shall be submitted no later than
240 days after the date the Notification
of Compliance Status is due and shall
cover the 6-month period beginning on
the date the Notification of Compliance
Status is due. Subsequent reports shall
cover each preceding 6-month period.
  (ii) If none of the compliance
exceptions in paragraphs (e)(6)(iii)
through (vii) of this section occurred
during the 6-month period, the Periodic
Report required by paragraph (e)(6)(i) of
this section shall be a statement that
there were no compliance exceptions, as
described in this paragraph, for the 6-
month period covered by that report and
that none of the activities specified in
paragraphs (e)(6)(iii) through (vii)  of this
                        section occurred during the period
                        covered by that report.
                          (iii) For an owner or operator of an
                        affected source complying with the
                        provisions of §§ 63.1432 through
                        63.1433 for any emission point, Periodic
                        Reports shall include:
                          (A) All information specified in the
                        HON periodic reporting requirements in
                        § 63.122(a)(4) for storage vessels and in
                        §63.146(c) through §63.146(f) for
                        process wastewater.
                          (B) The daily average values of
                        monitored parameters for all excursions,
                        as defined in §63.1438(f).
                          (C) The periods when monitoring data
                        were not collected shall be specified;
                        and
                          (D) The information in paragraphs
                        (e)(6)(iii)(D)U) through (3) of this
                        section, as applicable:
                          (1) Notification if a process change is
                        made such that the group status of any
                        emission point changes from Group 2 to
                        Group 1. The owner or operator is not
                        required to submit a notification of a
                        process change if that process change
                        caused the group status of an emission
                        point to change from Group 1 to Group
                        2. However, until the owner or operator
                        notifies the Administrator that the group
                        status of an emission point has changed
                        from Group 1 to Group 2, the owner or
                        operator is required to continue to
                        comply with the Group 1 requirements
                        for that emission point. This notification
                        may be submitted at any time.
                          (2) Notification if one or more
                        emission points (other than equipment
                        leak components subject to §63.1434),
                        or one or more PMPU is added to an
                        affected source. The owner or operator
                        shall submit the information contained
                        in paragraphs (e) (6) (iii) (D) (2) (i) and (ii)
                        of this  section.
                          (i) A description of the addition to the
                        affected source.
                          (if) Notification of the group status or
                        control requirement for the additional
                        emission point or all emission points in
                        the PMPU.
                          (3) For process wastewater streams
                        sent for treatment pursuant to
                        § 63.132 (g), reports of changes in the
                        identity of the treatment facility or
                        transferee.
                          (E) The information in paragraph
                        (b)(l)(ii) of this section for reports of
                        start-up, shutdown, and malfunction.
                          (iv) If any performance tests are
                        reported in a Periodic Report, the
                        following information shall be included:
                          (A) One complete test report shall be
                        submitted for each test method used for
                        a particular kind of emission point
                        tested. A complete test report shall
                        contain the information specified in
                        paragraph (e)(5)(i)(B) of this section.
  (B) For additional tests performed for
the same kind of emission point using
the same method, results and any other
information required by the test method
to be in the test report shall be
submitted, but a complete test report is
not required.
  (v) The results for each change made
to a primary product determination for
a PMPU made under § 63.1420(e)(3) or
(10).
  (vi) The results for each reevaluation
of the applicability of this subpart to a
storage vessel that begins receiving
material from (or sending material to) a
process unit that was not included in
the initial determination, or a storage
vessel that ceases to receive material
from (or send material to) a process unit
that was included in the initial
determination, in accordance with
§63.1420(f)(8).
  (vii) The Periodic Report required by
the equipment leak provisions in
§ 63.1434 (f) shall  be submitted as part of
the Periodic Report required by
paragraph (e)  (6) of this section.
  (viii) The owner or operator of an
affected source shall submit quarterly
reports for particular emission points
and process sections as specified in
paragraphs (e) (6) (viii) (A) through (D) of
this section.
  (A) The owner or operator of an
affected source shall submit quarterly   •
reports for a period of 1 year for an
emission point or process section if the
emission point or process section meets
the conditions in  paragraph
(e) (6) (viii) (A)  (1) or (2) of this section.
  (1) A combustion, recovery, or
recapture device for a particular
emission point or process section has
more excursions, as defined in
§ 63.1438(f), than the number of excused
excursions allowed under §63.1438(g)
for a semiannual reporting period; or
  (2) The Administrator requests the
owner or operator to submit quarterly
reports for that emission point or
process section.
  (B) The quarterly reports shall include
all information specified in paragraphs
(e)(6)(iii) through (vii) of this section, as
applicable to  the emission point or
process section for which quarterly
reporting is required under paragraph
(e) (6) (viii) (A)  of this section.
Information applicable to other
emission points within the affected
source shall be submitted in the
semiannual reports required under
paragraph (e)(6)(i) of this section.
  (C) Quarterly reports shall be
submitted no  later than 60 days after the
end of each quarter.
  (D) After quarterly reports have been
submitted for an emission point for 1
year without  more excursions occurring

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                                                                     29477
(during that year) than the number of
excused excursions allowed under
§63.1438(g), the owner or operator may
return to semiannual reporting for the
emission point or process section.
  (7) Other reports. The notifications of
inspections required by the storage
vessel provisions in §63.1432 shall be
submitted, as specified in the HON
storage vessel provisions in
§63.122(h)(l) and (2), and in paragraphs
(e)(7)(i) and (ii)  of this section.
  (i) When the conditions in the HON
storage vessel provisions in
§§63.1420(e)(3)(i) or 63.1420(e)(4)(i) are
met, reports of changes to the primary
product for a PMPU or process unit, as
required by §63.1420(e)(3)(ii) or
§63.1420(g)(3),  respectively, shall be
submitted.
  (ii) Owners or operators of PMPU or
emission points (other than equipment
leak components subject to § 63.1434)
that are subject  to provisions for
changes or additions to plant sites in
§63.1420(g)(l) or (2) shall submit a
report as specified in paragraphs
(e)(7)(ii)(A) and (B) of this section.
  (A) Reports shall include:
  (1) A description of the process
change or  addition, as appropriate;
  (2) The planned start-up date and the
appropriate compliance date, according
to§63.1420(g)(l)or(2);and
  (3) Identification of the group status of
emission points (except equipment leak
components subject to the requirements
in §63.1434) specified in paragraphs
(e)(7)(ii)(A)(3)(i) through (Hi) of this
section, as applicable.
  (i) All the emission points in the
added PMPU, as described in
§63.1420(g)(l).
  (ii) All the emission points in an
affected source  designated as a new
affected source  under §63.1420(g)(2)(i).
  (Hi) All  the added or created emission
points as described in § 63.1420(g)(2)(ii).
  (4) If the owner or operator wishes to
request approval to use alternative
monitoring parameters, alternative
continuous monitoring or
recordkeeping,  alternative controls, or
wishes to  establish parameter
monitoring levels according to the
procedures contained in §63.1438(c) or
(d), a Precompliance Report shall be
submitted in accordance with paragraph
(e)(7)(ii)(B) of this section.
   (B) Reports shall be submitted as
specified in paragraphs (e)(7)(ii)(B)U)
through (3) of this section, as
appropriate.
   (1) Owners or operators of an added
PMPU subject to § 63.1420(g)(l) shall
submit a report no later than 180 days
prior to the compliance date for the
PMPU.
  (2) Owners or operators of an affected
source designated as a new affected
source under §63.1420(g)(2)(i) shall
submit a report no later than 180 days
prior to the compliance date for the
affected source.
  (3) Owners and operators of any
emission point (other than equipment
leak components subject to § 63.1434)
subject to §63.1420(g)(2)(ii) shall submit
a report no later than 180 days prior to
the compliance date for those emission
points.
  (8) Operating permit application. An
owner or operator who submits an
operating permit application instead of
a Precompliance Report shall submit the
information specified in paragraph (e)(4)
of this section, as applicable, with the
operating permit application.
  (f) Alternative monitoring parameters.
The owner or operator who has been
directed by any section of this subpart,
or any section of another subpart
referenced by this subpart, that
specifically references this paragraph to
set unique monitoring parameters, or
who requests approval to monitor a
different parameter than those listed in
§63.1432 for storage vessels, §63.1427
for ECO, § 63.1429 for process vents, or
§ 63.143 for process wastewater shall
submit the information specified in
paragraphs (f)(l) through (3) of this
section in the Precompliance Report, as
required by paragraph (e) (4) of this
section. The owner or operator  shall
retain for a period of 5 years each record
required by paragraphs (f)(l) through (3)
of this section.
  (1) The required information shall
include a description of the parameter(s)
to be monitored to ensure the
combustion, recovery, or recapture
device; control technique; or pollution
prevention measure is operated in
conformance with its design and
achieves the specified emission limit,
percent reduction, or nominal
efficiency, and an explanation of the
criteria used to select the parameters).
  (2) The required information shall
include a description of the methods
and procedures that will be used to
demonstrate that the parameter
indicates proper operation, the schedule
for this demonstration, and a statement
that the owner or operator will establish
a level for the monitored parameter as
part of the Notification of Compliance
Status report required in paragraph
(e) (5) of this section, unless this
information has already been included
in the operating permit application.
  (3) The required information shall
include a  description of the proposed
monitoring, recordkeeping, and
reporting system, to include the
frequency and content of monitoring,
recordkeeping, and reporting. Further,
the rationale for the proposed
monitoring, recordkeeping, and
reporting system shall be included if
either condition in paragraph (f)(3)(i) or
(ii) of this section is met:
  (i) If monitoring and recordkeeping is
not continuous; or
  (ii) If reports of daily average values
will not be  included in Periodic Reports
when the monitored parameter value is
above the maximum level or below the
minimum level as' established in the
operating permit or the Notification of
Compliance Status.
  (g) Alternative continuous monitoring
and recordkeeping. An owner or
operator choosing not to implement the
continuous parameter operating and
recordkeeping provisions listed in
§ 63.1429 for process vents, and
§ 63.1433 for wastewater, may instead
request approval to use alternative
continuous monitoring and
recordkeeping provisions according to
the procedures specified in paragraphs
(g)(l) through (4) of this  section.
Requests shall be submitted in  the
Precompliance Report as specified in
paragraph (e) (4) (iv) of this section, and
shall contain the information specified
in paragraphs (g)(2)(ii) and (g)(3)(ii) of
this section, as applicable.
  (1) The provisions  in the General
Provisions  requirements for the use of
an alternative monitoring method in
§63.8(f)(5)(i) shall govern the review
and approval of requests.
  (2) An owner or operator of an
affected source that does not have an
automated  monitoring and recording
system capable of measuring parameter
values at least once during
approximately equal 15-minute
intervals and that does not generate
continuous records may request
approval to use a nonautomated system
with less frequent monitoring,  in
accordance with paragraphs (g)(2)(i) and
(ii) of this section.
   (i) The requested system shall include
visual reading and recording of the
value of the relevant operating
parameter no less frequently than once
per hour. Daily averages shall be
calculated  from these hourly values and
recorded.
   (ii) The request shall contain:
   (A) A description of the planned
monitoring and recordkeeping system;
   (B) Documentation that the affected
source does not have an automated
monitoring and recording system;
   (C) Justification for requesting an
alternative monitoring and
recordkeeping system; and
   (D) Demonstration that the proposed
monitoring frequency is sufficient to
represent combustion, recovery, or

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recapture device operating conditions,
considering typical variability of the
specific process and combustion,
recovery, or recapture device operating
parameter being monitored.
  (3) An owner or operator may request
approval to use an automated data
compression recording system that does
not record monitored operating
parameter values at a set frequency (for
example, once at approximately equal
intervals of about 15 minutes), but that
records all values that meet set criteria
for variation from previously recorded
values, in accordance with paragraphs
(g)(3)(i) and (ii) of this section.
  (i) The requested system shall be
designed to:
  (A) Measure the operating parameter
value at least once during
approximately equal  15-minute
intervals;
  (B) Record at least four values each
hour during periods of operation;
  (C) Record the date and time when
monitors are turned off or on;
  (D) Recognize unchanging data that
may indicate the monitor is not
functioning properly, alert the operator,
and record the incident;
  (E) Calculate daily average values of
the monitored operating parameter
based on all measured data; and
  (F) If the daily average is not an
excursion, as defined in §63.1438(f), the
data for that operating day may be
converted to hourly average values and
the four or more individual records for
each hour in the operating day may be
discarded.
  (ii) The  request shall contain:
  (A) A description of the  monitoring
system and data compression recording
system, including the criteria used to
determine which monitored values are
lecorded and retained;
  (B) The  method for calculating daily
averages; and
  (C) A demonstration that the system
meets all criteria in paragraph (g) (3) (i) of
this section.
  (4) An owner or operator may request
approval to use other alternative
monitoring systems according to the
procedures specified in the General
Provisions' requirements for using an
alternative monitoring method in
§63.8(f)(4).
  (h) Reduced recordkeeping program.
For any parameter with respect to any
item of equipment, the owner or
operator may implement the
recordkeeping requirements in
paragraph (h)(l) or (2) of this section as
alternatives to the continuous operating
parameter monitoring and
recordkeeping provisions that would
otherwise apply under this subpart. The
owner or operator shall retain for a
                        period of 5 years each record required
                        by paragraph (h)(l) or (2) of this section.
                          (1) The owner or operator may retain
                        only the daily average value, and is not
                        required to retain more frequent
                        monitored operating parameter values,
                        for a monitored parameter with respect
                        to an item of equipment, if the
                        requirements of paragraphs (h)(l)(i)
                        through (iv) of this section are met. An
                        owner or operator electing to comply
                        with the requirements of paragraph
                        (h) (1) of this section shall notify the
                        Administrator in the Notification of
                        Compliance Status or, if the Notification
                        of Compliance Status has already been
                        submitted, in the Periodic Report
                        immediately preceding implementation
                        of the requirements of paragraph (h) (1)
                        of this section.
                          (i) The monitoring system is capable
                        of detecting unrealistic or impossible
                        data during periods of operation other
                        than start-ups, shutdowns or
                        malfunctions (e.g., a temperature
                        reading of  - 200°C on a boiler), and will
                        alert the operator by alarm or other
                        means. The owner or operator shall
                        record the occurrence. All instances of
                        the alarm or other alert in an operating
                        day constitute a single occurrence.
                          (ii) The monitoring system generates,
                        updated at least hourly throughout each
                        operating day, a running average of the
                        monitoring values that have been
                        obtained during that operating day, and
                        the capability to observe this running
                        average is readily available to the
                        Administrator on-site during the
                        operating day. The owner or operator
                        shall record the occurrence of any
                        period meeting the criteria in
                        paragraphs (h)(l)(ii)(A) through (C) of
                        this section. All instances in an
                        operating day constitute a single
                        occurrence.
                          (A) The running average is above the
                        maximum or below the minimum
                        established limits;
                          (B) The running average is based on
                        at least six 1-hour average values; and
                          (C) The running average reflects a
                        period of operation other than a start-
                        up, shutdown, or malfunction.
                          (iii) The monitoring system is capable
                        of detecting unchanging data during
                        periods of operation other than start-
                        ups, shutdowns or malfunctions, except
                        in circumstances where the presence of
                        unchanging data are the expected
                        operating condition based on past
                        experience (e.g., pH in some scrubbers),
                        and will alert the operator by alarm or
                        other means. The owner or operator
                        shall record the occurrence. All
                        instances of the alarm or other alert in
                        an operating day constitute a single
                        occurrence.
  (iv) The monitoring system will alert
the owner or operator by an alarm or
other means, if the running average
parameter value calculated under
paragraph (h)(l)(ii) of this section
reaches a set point that is appropriately
related to the established limit for the
parameter that is being monitored.
  (v) The owner or operator shall verify
the proper functioning of the monitoring
system, including its ability to comply
with the requirements of paragraph
(h)(l) of this section, at the times
specified in paragraphs (h)(l)(v)(A)
through (C) of this section. The owner
or operator shall document that the
required verifications occurred.
  (A) Upon initial installation.
  (B) Annually after initial installation.
  (C) After any change to the
programming or equipment constituting
the monitoring system, which might
reasonably be expected to alter the
monitoring system's ability to comply
with the requirements of this section.
  (vi) The owner or operator shall retain
the records identified in paragraphs
(h)(l)(vi)(A) through (D) of this section.
  (A) Identification of each parameter.
for each item of equipment, for which
the owner or operator has elected to
comply with the requirements of
paragraph (h) of this section.
  (B) A description of the applicable
monitoring system (s), and how
compliance will be achieved with each
requirement of paragraphs (h)(l)(i)
through (v) of this section. The
description shall identify the location
and format (e.g., on-line storage,  log
entries) for each required record. If the
description changes, the owner or
operator shall retain both the current
and the most recent superseded
description, as specified in paragraph
(h)(l)(vi)(D) of this section.
  (C) A description, and the date, of any
change to the monitoring system that
would reasonably be expected to affect
its ability to comply with the
requirements of paragraph (h)(l)  of this
section.
  (D) The owner or operator subject to
paragraph (h)(l)(vi)(B)  of this section
shall retain the current description of
the monitoring system as long as the
description is current. The current
description shall, at all times, be
retained on-site or be accessible from a
central location by computer or other
means that provides access within 2
hours after a request. The owner  or
operator shall retain all superseded
descriptions for at least 5 years after the
date of their creation. Superseded
descriptions shall be retained on-site (or
accessible from a central location by
computer or other means that provides
access within 2 hours after a request) for

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              Federal Register/Vol. 64, No.  104/Tuesday, June 1,  1999/Rules and Regulations
                                                                     29479
at least 6 months after their creation.
Thereafter, superseded descriptions may
be stored off-site.
  (2) If an owner or operator has elected
to implement the requirements of
paragraph (h)(l) of this section for a
monitored parameter with respect to an
item of equipment and a period of 6
consecutive months has passed without
an excursion as defined in paragraph
(h) (2) (iv) of this section, the owner or
operator is no longer required to record
the daily average value, for any
operating day when the daily average is
less than the maximum, or greater than
the minimum established limit. With
approval by the Administrator,
monitoring data generated prior to the
compliance date of this subpart shall be
credited toward the period of 6
consecutive months, if the parameter
limit and the monitoring accomplished
during the period prior to the
compliance date was required and/or
approved by the Administrator.
  (i) If the owner or operator elects not
to retain the daily average values, the
owner or operator shall notify the
Administrator in the next Periodic
Report. The notification shall identify
the parameter and unit of equipment.
  (ii) If, on any operating day after the
owner or operator has ceased recording
daily average values as provided in
paragraph (h)(2) of this section, there is
an excursion as defined in paragraph
(h)(2)(iv)  of this section, the owner or
operator shall immediately resume
retaining the daily average value for
each operating day and Shall notify the
Administrator in the next Periodic
Report. The owner or operator shall
continue  to retain each daily average
value  until another period of 6
consecutive months has passed without
an excursion as defined in paragraph
(h) (2) (iv)  of this section.
  (iii) The owner or operator shall retain
the records specified in paragraph (h)(l)
of this section, for the duration specified
in paragraph (h) of this section. For any
calendar week, if compliance with
paragraphs (h)(l)(i) through (iv) of this
section does not result in retention of a
record of at least  one occurrence or
measured parameter value, the owner or
operator shall record and retain at least
one parameter value during a period of
operation other than a start-up,
shutdown, or malfunction.
  (iv) For the purposes of paragraph (h)
of this section, an excursion means that
the daily average of monitoring data for
a parameter is greater than the
maximum, or less than the minimum
established value, except as provided in
paragraphs (h)(2)(iv)(A) and (B) of this
section.
  (A) The daily average value during
any start-up, shutdown, or malfunction
shall not be considered an excursion for
purposes of paragraph (h)(2) of this
section, if the owner or operator follows
the applicable provisions of the start-up,
shutdown, and malfunction plan
required by the General Provisions in
§63.6(e)(3).
  (B) An excused excursion, as
described in §63.1438(g), shall not be
considered an excursion for the
purposes of paragraph (h)(2) of this
section.
    TABLE 1 TO SUBPART PPP OF PART 63.—APPLICABILITY OF GENERAL PROVISIONS To SUBPART PPP AFFECTED
                                                    SOURCES
Reference
63.1 (a)(1) 	
63.1(a)(2) 	
63.1 (a)(3) 	
63.1(aM4) 	
63.1 (a)(5) 	
63.1(a)(6)-(8) 	
63.1(a)(9) 	
63.1(a)(10) 	
63.1(a)(11) 	
63.1(a)(12M14) 	
63.l(b)(1) 	
63.1(b)(2) 	
63.1(b)(3) 	
63.1 (c)(1) 	
63.1(c)(2) 	
63.1 (c)(3) 	
63.1(c)(4) 	
63.1(c)(5) 	
63.1 (d) 	
63.1 (e) 	
63.2 	
63.3 	
63.4(a)(1H3) 	
63.4(a)(4) 	
63.4(a)(5) 	
63.4(b) 	
63.4(c) 	
63.5(a)(1) 	
63.5(a)(2) 	
63.5(b)(1) 	

Applies to
subpart PPP
Yes 	
Yes.
Yes 	
Yes
No 	
Yes.
No 	
Yes.
Yes.
Yes.
No
Yes.
Yes.
Yes 	
No 	
No
Yes.
Yes
No
Yes.
Yes
Yes.
Yes.
No
Yes.
Yes.
Yes.
Yes
Yes.
Yes 	

Explanation
§63.1423 specifies definitions in addition to or that apply instead of definitions in
§63.2.
§63.1422(f) through (k) of this subpart and §63.160(b) identify those standards
which overlap with the requirements of sub parts PPP and H and specify how
compliance shall be achieved.
Subpart PPP (this table) specifies the applicability of each paragraph in subpart A
to subpart PPP.
Reserved.
Reserved.
§63.1420(a) contains specific applicability criteria.
Subpart PPP (this table) specifies the applicability of each paragraph in subpart A
to subpart PPP.
Area sources are not subject to subpart PPP.
Reserved.
Except that affected sources are not required to submit notifications overridden by
this table.
Reserved.
§63.1423 specifies those subpart A definitions that apply to subpart PPP.
Reserved.
Except the terms "source" and "stationary source" should be interpreted as having
the same meaning as "affected source".
Except §63.1420(g) defines when construction or reconstruction is subject to new
source standards.

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29480
Federal Register/Vol. 64, No. 104/Tuesday, June 1, 1999/Rules and Regulations
TABLE 1 TO SUBPART PPP OF PART 63.— APPLICABILITY OF GENERAL PROVISIONS To SUBPART PPP AFFECTED
SOURCES — Continued
Reference
63 5(b)(2)
63.5(b)(3) 	
635(b)(4) 	
63.5(b)(5) 	
63.5(b)(6) 	
63.5(c) 	
63.5(d)(1)(i) 	
63.5(d)(1)(ii) 	
63.5(d)(1)(iii) 	
63.5(d)(2) 	 	
63.5(d)(3) 	
63.5(d)(4) 	
63.5(e) 	
63.5(f)(1) 	
63.5(f)(2) 	
63.6(a) 	
63.6(b)(1) 	
63.6(b)(2) 	
63.6(b)(3) 	
63,6(b)(4) 	
63.6(b)(5) 	
63.6(b)(6) 	
63.6(b)(7) 	
63.6(c)(1) 	
63.6(c)(2) 	
63.6(c)(3) 	
63.6(c)(4) 	
63.6(c)(5) 	
63.6(d) 	
63.6(e) 	
63.6(e)(1)(i) 	
63.6(e)(1)(ii) 	
63.6(e)(1)(iii) 	
63.6(e)(2) 	
63.6(e)(3)(i) 	
63.6(e)(3)(i)(A) 	
63.6(e)(3)(i)(B) 	
63.6(e)(3)(i)(C) 	
63.6(e)(3)(ii) 	
63.6(e)(3)(iii) 	
63.6(e)(3)(iv) 	
63.6(e)(3)(v) 	
63.6(e)(3)(vi) 	
63.6(e)(3)(vii) 	
63.6(e)(3)(vii)(A) 	
63.6(e)(3)(vii)(B) 	
63.6(e)(3)(vii)(C) 	
63.6(e)(3)(viii) 	
63.6(f)(1) 	
63.6(f)(2) 	
63.6(f)(3) 	
63.6(g) 	
63.6(h) 	
63.6(i)(1) 	
63.6(i)(2) 	
63.6(i)(3) 	
63.6(i)(4)(i)(A) 	
63.6(i)(4)(i)(B) 	

Applies to
subpart PPP
No 	
Yes.
Yes 	
Yes.
Yes 	
No 	
Yes.
Yes 	
No 	
No.
Yes 	
Yes.
Yes.
Yes.
Yes 	
Yes.
Yes.
Yes,
Yes.
Yes.
Yes.
No
No.
Yes
No.
No 	
No 	
Yes.
No
Yes
No 	
Yes.
Yes.
Yes.
Yes
Yes
Yes.
Yes.
Yes.
No
No
No
Yes.
Yes.
Yes.
Yes
Yes.
Yes.
Yes.
Yes
Yes.
Yes.
No
Yes.
Yes.
Yes.
Yes.
No .

Explanation
Reserved.
Except that the Initial Notification requirements in §63.1439(e)(3) shall apply instead
of the requirements in §63.9(b).
Except that § 63.1 420(g)- defines when construction or reconstruction is subject to
the new source standards.
Reserved.
Except that §63.5(d)(1)(ii)(H) does not apply.
§63.1439(e)(5) and §63.1434(e) specify Notification of Compliance Status require-
ments.
Except §63.5(d)(3)(ii) does not apply, and equipment leaks subject to §63.1434 are
exempt.
Except that where §63.9(b)(2) is referred to, the owner or operator need not com-
ply.
Reserved,
§63.1422 specifies the compliance date.
Reserved. ' '
Reserved.
Reserved.
Except as otherwise specified for individual paragraphs (below), and §63.6(e) does
not apply to Group 2 emission points.*
This is addressed by §63.1420(h)(4).
For equipment teaks (subject to §63.1434), the start-up, shutdown, and malfunction
plan requirement of §63.6(e)(3)(i) is limited to combustion, recovery, or recapture
devices and is optional for other equipment. The start-up, shutdown, and malfunc-
tion plan may include written procedures that identify conditions that justify a
delay of repair.
This is also addressed by §63.1420(h)(4).
Recordkeeping and reporting are specified in §63.1439(b)(1).
Recordkeeping and reporting are specified in §63.1439(b)(1).
Requirement is specified in §63.1439(b)(1).
Except the plan shall provide for operation in compliance with §63.1420(i)(4).
Except 63.7(c), as referred to in §63.6(f)(2)(iii)(D) does not apply, and except that
§63.6(f)(2)(ii) does not apply to equipment leaks subject to §63.1434.
Subpart PPP does not require opacity and visible emission standards.
Dates are specified in §63.1422(e) and §63.1439(e)(4)(i) for all emission points ex-
cept equipment leaks, which are covered under §63.182(a)(6)(i).

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         Federal Register/Vol. 64, No. 104/Tuesday, June 1, 1999/Rules and Regulations
29481
TABLE 1 TO SUBPART PPP OF PART 63.—APPLICABILITY OF GENERAL PROVISIONS To SUBPART PPP AFFECTED
                                    SOURCES—Continued
Reference
63.6(i)(4)(ii) 	
63.6(i)(5)(14) 	
636(i)T~15) 	 	
63.6(i)(16) 	
63.6(i) 	
63.7(a)(1) 	
63 7(a)(2)
637(a)(3) 	
63 7(b)
63.7(c) 	
63.7(d) 	
63 7(e)(1) 	
637(e)(2) 	
637(e)(3)
63 7(e)(4) 	
63.7(f) 	
637(q) 	
637(h) 	 	
63.8(a)(1) 	
63.8(a)(2) 	 •. 	
63.8(a)(3) 	
63.8(aX4) 	
638(b)(1) 	
63.8(b)(2) 	
638(bX3) 	 	
63.8(c (1 	
63.8(01(1X0 	 	
63.8(c)(1)(ii) 	
63.8(c)(1)(iii) 	
638(c)(2) 	
63.8(c)(3) 	 	
638(c)(4) 	
63.8(c)(5)-(8) 	 	
63.8(d) 	
63.8(e) 	
63.8(f)(1M3) 	
63.8(fi(4)(i) 	
63.8(f)(4)(ii) 	
63.8(f)(4)(iii) 	
63.8(f)(5)(i) 	
63 8(f)(5)(ii) 	
63.8(f)(5)(iii) 	
63.8(f)(6) 	
63.8(Q) 	
63.9(a) 	
63.9(b) 	
639(c) 	 	 	
63.9(d) 	
63.9(e) 	
63.9(f) 	
63.9(q) 	
63.9(h) 	 	
63.9W 	
63.9(i) 	
63.10(a) 	
Applies to
subpart PPP
No
Yes.
No 	
Yes.
Yes.
Yes.
No 	
Yes.
No 	
No 	
Yes.
Yes 	
Yes.
No
Yes.
Yes 	
Yes 	
Yes . .
Yes.
No.
No 	
Yes.
Yes.
No 	
Yes
Yes.
Yes.
No 	
Yes.
Yes.
Yes.
No
No
No.
No.
Yes.
Yes
Yes.
Yes.
Yes.
No
Yes.
No ..
No .
Yes.
No 	
Yes
Yes.
No
No ...
No.
No ..
Yes.
No.
Yes.
Explanation


Reserved.



§63.1439(e)(5) and §63.1439(e)(6) specify the submittal dates of performance test
results for. all emission points except equipment leaks; for equipment leaks, com-
pliance demonstration results are reported in the Periodic Reports.
§63.1437(a)(4) specifies notification requirements
Except if the owner or operator chooses to submit an alternative nonopacity emis-
sion standard for approval under §63.6(g).
Except that all performance tests shall be conducted during worst case operating
conditions.
Subpart PPP specifies requirements

Since a site specific test plan is not required, the notification deadline in
§63.7(f)(2)(i) shall be 60 days prior to the performance test, and in §63.7(f)(3)
approval or disapproval of the alternative test method shall not be tide to the site
specific test plan.
Except that references to the Notification of Compliance Status report in §63.9(h)
are replaced with the requirements in §63.1439(e)(5). In addition, equipment
leaks subject to §63.1434 are not required to conduct performance tests.
Except §63.7(h)(4)(ii) is not applicable since the she-specific test plans in
§63.7(c)(2) are not required.

Reserved.


Support PPP specifies locations to conduct monitoring.



For all emission points except equipment leaks, comply with §63.1439(b)(1)(i)(B);
for equipment leaks, comply with §63.181(g)(2)(ii).


§63 1438 specifies monitoring requirements' not applicable to equipment leaks be-
cause §63.1434 does not require continuous monitoring systems.



Except the timeframe for submitting request is specified in §63.1439(f) or (g)- not
applicable to equipment leaks, because §63.1434 (through subpart H) specifies
acceptable alternative methods.




Subpart PPP does not require CEM's
Data reduction procedures specified in §631439(d) and (h)' not applicable to
equipment leaks.
The Initial Notification requirements are specified in §63.1439(e)(3)


§63 1437(a)(4) specifies notification deadline
Subpart PPP does not require opacity and visible emission standards

§ 63 1 439(e)(5) specifies Notification of Compliance Status requirements




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29482
Federal Register/Vol. 64,  No.  104/Tuesday, June 1,  1999/Rules and Regulations
    TABLE 1 TO SUBPART PPP OF PART 63.—APPLICABILITY OF GENERAL PROVISIONS To SUBPART PPP AFFECTED
                                         SOURCES—Continued
Reference
63 10(b)(1)
63 10(b)(2)
6310(bK3) 	
63 1 0(c)
63.10(d)(1) 	
63.10(d)(2) 	
63.10(d)(3) 	
63.10(d)(4) 	
6310WK5) 	
63.10(e) 	
63.10(f) 	
6311 	
63.12 	
63.13-63.15 	
Applies to
subpart PPP
No 	
No 	
Yes.
No 	
Yes.
No 	
No 	
Yes.
Yes 	
No 	
Yes.
Yes.
Yes 	
Yes.
Explanation
§ 63.1439(a) specifies record retention requirements.
Subpart PPP specifies recordkeeping requirements.
§63.1439 specifies recordkeeping requirements.
§63.1439(e)(5) and §63.1439(e)(6) specify performance test reporting require-
ments; not applicable to equipment leaks.
Subpart PPP does not require opacity and visible emission standards.
Except that reports required by §63.10(d)(5)(i) shall be submitted at the same time
as Periodic Reports specified in §63.1439(e)(6). The start-up, shutdown, and
malfunction plan, and any records or reports of start-up, shutdown, and malfunc-
tion do not apply to Group 2 emission points,
§63.1439 specifies reporting requirements.
Except that the authority of §63.177 (for equipment leaks) will not be delegated to
States.
 •The plan, and any records or reports of start-up, shutdown, and malfunction do not apply to Group 2 emission points.

  TABLE 2 TO SUBPART PPP OF PART 63.—APPLICABILITY OF SUBPARTS F, G, H, AND U TO SUBPART PPP AFFECTED
                                               SOURCES
Reference
Subpart F
63.100 	
63.101 	
63.102-63.103 	
63.104 	
63.105 	
63.106 	
Subpart G:
63.110 	
63.111 	
63.112 	
63.113-63.118 	
63.119-63.123 . .. .
63.124-63.125 	
63.126-63 130 . .
63.131 	
63.132-63.147 	
63.148-63.149 	
63.150 	
63.151-63.152 	
Subpart H:
63.160-63.182 	
Subpart U:
63.480-63 487 . .
63.488 	
63.489-63.506 	

Applies to
subpart PPP
No.
Yes . .. .
No.
Yes 	
Yes 	
No.
No.
Yes 	
No.
Yes 	
No 	
Yes
No 	
No.
No 	
Yes
Yes
No.
No.
Yes
No.
Yes
No.
Explanation
Several definitions from 63.101 are referenced at 63.1423 	
With the differences noted in 63 1435(b) through (d)
With the differences noted in 63 1433(b)
Several definitions from 63.111 are incorporated by reference
into 63.1423.
For THF facilities, with the differences noted in 63.1425(f)(1)
through (f)(10).
For epoxide facilities, except that 63.115(d) is used for TRE
determinations.
With the differences noted in 63.1432(b) through 63.1432(p)
Reserved.
Reserved.
With the differences noted in 63.1433(a)(1) through
63.1433(a)(19).
With the differences noted in 63.1432(b) through 63.1432(p)
and 63.1433(a)(1) through 63.1433(a)(19).
Subpart PPP affected sources shall comply with all require-
ments of subpart H, with the differences noted in
63.1422(d), 63.1422(h), and 63.1434{b) through (g).
Portions of 63.488(b) and (e) are cross-referenced in subpart
PPP..
Applicable section of subpart
PPP
63.1423.
63.1435.
63.1433.
63.1423.
63.1425.
63.1428.
63.1432.
63.1433.
63.1432 and 63.1433.
63.1434.

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               Federal Register/Vol.  64, No.  104/Tuesday, June 1, 1999/Rules and Regulations
                                                                                   29483
  TABLE 3 TO SUBPART PPP OF PART 63.—GROUP 1  STORAGE VESSELS AT EXISTING AND NEW AFFECTED SOURCES

75 < capacity
capacity 2 1

< 151 	
51 	
Vessel
(cubic


capacity
meters)


Vapor Pressure*
(kilopascals)
213.1
25.2
  •Maximum true vapor pressure of total organic HAP at storage temperature.

         TABLE 4 TO SUBPART PPP OF  PART 63—KNOWN ORGANIC HAP FROM POLYETHER POLYOL PRODUCTS

                                                Organic HAP/Chemical Name
                                                         (CAS No.)

                                                   1,3 Butadiene (106990)
                                                   Ethylene Oxide (75218)
                                                     n-Hexane(110543)
                                                      Methanol (67561)
                                                   Propylene Oxide (75569)
 	Toluene (108883)	

  CAS No. = Chemical Abstracts Service Registry Number

       TABLE 5 TO SUBPART PPP OF PART 63.—PROCESS VENTS FROM BATCH UNIT OPERATIONS—MONITORING,
                                    RECORDKEEPING, AND REPORTING REQUIREMENTS
        Control technique
   Parameter to be monitored
Recordkeeping and reporting requirements for monitored parameters
Thermal Incinerator
Firebox temperature1
Catalytic Incinerator
Temperature upstream and down-
  stream of the catalyst bed.
Boiler or Process Heater with a de-
  sign heat input capacity less than
  44  megawatts and  where  the
  process  vents are not introduced
  w'rth or used as the primary fuel,
Flare
Firebox temperature1
Presence of a flame  at the pilot
  light.
Absorber'
Liquid flow rate into or out of the
  scrubber, or the pressure  drop
  across the scrubber.
1. Continuous records as specified in § 63.1429.b
2. Record and report the average firebox temperature measured dur-
  ing the performance test—NCS.C

3.  Record the daily average firebox temperature  as  specified in
  §63.1429.

4. Report all daily average temperatures that are below the minimum
  operating temperature established in the NCS or operating permit
  and all instances when monitoring data are not collected—PR.de
1. Continuous records as specified in § 63.1429.b
2.  Record and report the average upstream and downstream tem-
  peratures and the average temperature difference across the cata-
  lyst bed measured during the performance test—NCS.C
3.  Record the daily average upstream temperature and temperature
  difference across catalyst bed as specified in §63.1429.
4. Report all daily average upstream temperatures that are below the
  minimum upstream temperature  established in the NCS or oper-
  ating permit—PR.d«
5.  Report all daily average temperature differences across the cata-
  lyst bed that are below the minimum difference established in the
  NCS or operating permit—PR.d«
6. Report all instances when monitoring data are not collected.e
1. Continuous  records as specified in § 63.1429.b
2. Record and report the average firebox temperature measured dur-
  ing the performance test—NCSc
3.  Record the daily average firebox temperature  as  specified in
  §63.1429."*
4. Report all daily average temperatures that are below the minimum
  operating temperature established in the NCS or operating permit
  and all instances when monitoring data are not collected—PR.dc
1. Hourly records of whether the monitor was continuously operating
  during batch emission episodes  selected for control and whether a
  flame was continuously present at the pilot light during each hour.
2.  Record and  report the presence of a flame at the pilot light over
  the full period of the compliance determination—NCS.C
3.  Record the times and durations of all periods during batch  emis-
  sion episodes when all flames at the pilot light of a flare are absent
  or the monitor is not operating.
4.  Report the  times and durations of all periods during batch  emis-
  sion episodes selected for control when all flames at the pilot light
  of a flare are absent—Pr.d
1.  Records every  15 minutes, as specified in § 63.1429.b
2.  Record and report the average liquid flow rate into or out of the
  scrubber, or the pressure drop across the scrubber, measured dur-
  ing the performance test—NCS.

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29484
Federal  Register/Vol. 64, No.  104/Tuesday, June 1,  1999/Rules  and Regulations
       TABLE 5 TO SUBPART PPP OF PART 63.—PROCESS VENTS FROM BATCH UNIT OPERATIONS—MONITORING,
                               RECORDKEEPING, AND REPORTING REQUIREMENTS—Continued
        Control technique
                     Parameter to be monitored
 Recordkeeping and reporting requirements for monitored parameters
Condenser'
Carbon Adsorber'
Absorber,  Condenser,  and Carbon
  Adsorber (as an alternative to the
  above).
All Combustion, recovery, or recap-
  ture devices.
                                 pH of the scrubber,
                 Exit (product side) temperature	
                 Total regeneration stream mass or
                   volumetric flow during  carbon
                   bed regeneration cycle(s), and.
                                 Temperature  of  the  carbon bed
                                   after regeneration and within 15
                                   minutes of completing any cool-
                                   ing cycle(s).
                 Concentration level or reading in-
                   dicated by an organic monitoring
                   device at the outlet of the recov-
                   ery device.
                 Diversion to the atmosphere from
                   the combustion, recovery, or re-
                   capture device or.
                                 Monthly  inspections  of   sealed
                                   valves.
3. Record the liquid flow rate into or out of the scrubber, or the pres-
  sure drop across the scrubber, every 15  minutes, as specified in
  §63.1429.
4. Report all scrubber flow rates or pressure drop values that are
  below the minimum operating value established in the NCS or op-
  erating permit and all instances when monitoring data are not col-
  lected—PR.-*'
1. Once daily records as specified in §63.1429.0
2. Record and report the average pH of the scrubber effluent meas-
  ured during the performance test—NCS.C
3. Record at least once daily the pH of the scrubber effluent.
4. Report all pH scrubber effluent  readings  out of the  range  estab-
  lished in the NCS or operating  permit and all instances when moni-
  toring data are not collected—PR.d* If a base absorbent is used,
  report all pH values that are below the minimum operating values.
  If an acid absorbent is used, report all pH values that are above
  the maximum operating values.
1. Continuous records as specified in § 63.1429.b
2. Record and report the average exit temperature measured  during
  the performance test—NCS.
3. Record  the daily  average  exit temperature as  specified In
  §63.1429.
4. Report all daily average exit temperatures that are above the max-
  imum operating temperature established in the NCS or operating
  permit  and all instances when  monitoring  data are not collected—
  PR."«
1. Record of total regeneration stream mass  or volumetric flow for
  each carbon bed regeneration cycle.
2. Record and report the total regeneration stream mass or volu-
  metric flow during each carbon bed regeneration cycle during the
  performance test—NCS.C
3. Report all carbon bed regeneration cycles  when the total regenera-
  tion stream mass  or  volumetric flow  is above the maximum flow
  rate established in the NCS or operating permit—PR.<<«
1. Record the temperature of the carbon bed after each regeneration
  and within 15 minutes of completing any cooling cycle(s).
2. Record and report the temperature of the carbon bed after each
  regeneration and  within  15 minutes  of  completing any cooling
  cycle(s) measured during the performance test—NCS.c
3. Report all carbon bed regeneration cycles  when the temperature of
  the carbon bed after regeneration, or within 15 minutes of com-
  pleting  any cooling cyde(s), is above the maximum temperature
  established in the NCS or operating permit—PR.
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                Federal Register/Vol.  64, No.  104/Tuesday, June  1,  1999/Rules  and  Regulations         29485
       TABLE 5 TO SUBPART PPP OF PART 63.—PROCESS VENTS FROM BATCH UNIT OPERATIONS—MONITORING,
                              RECORDKEEPING, AND REPORTING REQUIREMENTS—Continued
        Control technique
    Parameter to be monitored
 Recordkeeping and reporting requirements for monitored parameters
ECO
Time from the end of the epoxide
  feed, or the epoxide partial pres-
  sure in the  reactor  or direct
  measurement  of  epoxide con-
  centration in the reactor liquid at
  the end of the ECO.
1. Records at the end of each batch, as specified in §63.1427(1).
2. Record and report the average parameter value of the parameters
  chosen, measured during the performance test.
3. Record the batch cycle ECO duration, epoxide  partial pressure, or
  epoxide concentration in the liquid at the end of the ECO
4. Report all batch cycle parameter values outside of the ranges es-
 . tablished in accordance with §63.1427(i)(3) and all instances when
  monitoring data were not collected—PR.de
  •Monitor may be installed in the firebox or in the ductwork immediately downstream of the firebox before any substantial heat exchange is en-
countered.
  b "Continuous records" is defined in §63.111.
  cNCS = Notification of Compliance Status described in §63.1429.
  d PR = Periodic Reports described in §63.1429.
  'The periodic reports shall include the duration of periods when monitoring data are not collected as specified in §63.1439.
  'Alternatively, these devices may comply with the organic monitoring device provisions listed at the end of this table.

    TABLE 6 TO SUBPART PPP OF PART 63.—PROCESS VENTS FROM CONTINUOUS  UNIT OPERATIONS—MONITORING,
                                    RECORDKEEPING, AND REPORTING REQUIREMENTS
        Control technique
    Parameter to be monitored
 Recordkeeping and reporting requirements for monitored parameters
Thermal Incinerator
Firebox temperature'
Catalytic Incinerator
Temperature upstream and down-
  stream of the catalyst bed.
Boiler or Process Heater with a de-
  sign heat input capacity less than
  44  megawatts  and  where  the
  process vents are not introduced
  with or used as the primary fuel.
Firebox temperature'
Flare
Presence  of a flame at the pilot
  light.
Absorber'
Exit temperature of the absorbing
  liquid, and.
1. Continuous records as specified in § 63.1429.b
2. Record and report the average firebox temperature measured dur-
  ing the performance test—NCS.c
3. Record the daily average firebox temperature for each operating
  day.
4. Report all daily average temperatures that are below the minimum
  operating temperature established in the  NCS or operating permit
  and  all instances when sufficient monitoring  data are  not col-
  lected— PR.*'
1. Continuous records as specified in §63.1429.b
2. Record  and report the  average  upstream arid 'downstream tem-
  peratures and the average temperature difference across the cata-
  lyst bed measured during the performance test—NCSC
3. Record the daily average  upstream temperature and temperature
  difference across catalyst bed for each operating day.
4. Report all daily average upstream temperatures that are below the
  minimum  upstream temperature established in the NCS or oper-
  ating permit—PR.d«
5. Report all daily average temperature differences across the cata-
  lyst bed that are below the minimum difference established in the
  NCS or operating permit—PR.de
6. Report all operating days when insufficient monitoring data are col-
  lected. °
1. Continuous records as specified in §63.1429.b
2. Record and report the average firebox temperature measured dur-
  ing the performance test—NCSc
3. Record the daily average firebox temperature for each operating
  day.d
4. Report all daily average temperatures that are below the minimum
  operating temperature established in the NCS or operating permit
  and all instances when insufficient monitoring data are collected—
  PR.<"
1. Hourly records of whether the monitor was continuously operating
  and whether a flame was continuously present at the pilot light dur-
  ing each hour.
2. Record and report the presence of a flame at the pilot light over
  the full period of the compliance determination—NCS.C
3. Record the times and  durations  of all periods when all flames at
  the pilot light of a flare are absent or the monitor is not operating.
4. Report the times and durations of all periods when all flames at
  the pilot light of a flare are absent—Pr.d
1. Continuous records as specified in § 63.1429.b
2. Record and report the exit temperature of the absorbing liquid
  averaged over the full period of the TRE determination—NCS.C
3. Record the daily average exit temperature of the absorbing liquid
  for each operating day.
4. Report all the daily average exit temperatures of the absorbing liq-
  uid that are below the minimum operating value established in the
  NCS or operating—PR.de

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 29486
Federal  Register/Vol.  64, No. 104/Tuesday, June  1,  1999/Rules  and  Regulations
    TABLE 6 TO SUBPART PPP OF PART 63.—PROCESS VENTS FROM CONTINUOUS UNIT OPERATIONS—MONITORING,
                              RECORDKEEPING, AND REPORTING REQUIREMENTS—Continued
        Control technique
                    Parameter to be monitored
 Reoordkeeping and reporting requirements for monitored parameters
                                 Exit specific gravity for the absorb-
                                   ing liquid.
 Condenser'
                 Exit (product side) temperature	
 Carbon Adsorber'
Absorber,  Condenser,  arid Carbon
  Adsorber (as an alternative to the
  above).
All Combustion, recovery, or recap-
  ture devices.
                 Total regeneration stream mass or
                   volumetric  flow  during  carbon
                   bed regeneration cycle(s), and.
                                 Temperature  of the  carbon  bed
                                   after regeneration and within 15
                                   minutes of completing any cool-
                                   ing cycle(s).
                 Concentration  level or reading in-
                   dicated by an organic monitoring
                   device at the outlet of the recov-
                   ery device.
                 Diversion to the atmosphere from
                  the combustion, recovery, or re-
                  capture device or.
                                 Monthly  inspections   of  sealed
                                   valves.
1. Continuous records as specified in §63.1429.b
2. Record and report the exit specific gravity averaged over the fuH
  period of the TRE determination—NCS.
3. Record the  daily average exit specific gravity ft" each operating
  day.
4. Report all daily average exit specific gravity values that are below
  •the minimum operating value established in  the NCS or oper-
  ating— PR.d«
1. Continuous records as specified in §63.1429.">
2. Record and report the exit temperature averaged over the full pe-
  riod of the TRE determination—NCS.
3. Record the daily average exit temperature for each operating day.
4. Report all daily average exit temperatures that are above the max-
  imum operating temperature established in the NCS or operating—
  PR.<"
1. Record of total regeneration stream  mass or volumetric flow for
  each carbon bed regeneration cycle.
2. Record and report the total regeneration stream mass or volu-
  metric flow during  each  carbon  bed regeneration cycle during the
  period of the TRE determination—NCS.C
3. Report all carbon bed regeneration cycles when the total regenera-
  tion stream mass or volumetric flow is above the maximum flow
  rate established in the NCS or operating permit—PR."''
1. Record the temperature of the carbon bed after each regeneration
  and within 15 minutes of completing any cooling cycle(s).
2. Record and report the temperature of the carbon bed after each
  regeneration during the period of the TRE determination—NCS*
3. Report all carbon bed regeneration cycles when the temperature of
  the carbon bed after regeneration is above the maximum tempera-
  ture established in the NCS or operating permit—PR.d*
1. Continuous records as specified in §63.1429."
2. Record and report the concentration level or reading averaged
  over the full period of the TRE determination—NCS.
3. Record the daily average concentration level  or reading for each
  operating day.
4. Report all daily average concentration levels or readings that are
  above the maximum concentration or reading established in the
  NCS or operating—PR.d«
1. Hourly records of whether the  flow indicator  was operating and
  whether a diversion was  detected at any time during each hour.
2. Record and report the times of all periods when the vent stream is
  diverted through a bypass line,  or the flow indicator is not oper-
  ating—PR.d
1. Records that monthly inspections were performed as specified in
  §63.1429.
2. Record and report all monthly  inspections that show that valves
  are in the diverting  position or that a seal has been broken—PR.d
  • Monitor may be installed in the firebox or in the ductwork immediately downstream of the firebox before any substantial heat exchanoe is en-
countered.
  6 "Continuous records" is defined in § 63.111.
  CNCS = Notification of Compliance Status described in §63.1429.
  " PR = Periodic Reports described in §63.1429.
  'The periodic reports shall include the duration of periods when monitoring data are not collected as specified in §63.1439.
  'Alternatively, these devices may comply with the organic monitoring device provisions listed at the end of this table.

TABLE 7 TO SUBPART PPP OF PART 63.—OPERATING PARAMETERS FOR WHICH MONITORING LEVELS ARE REQUIRED To
                                     BE ESTABLISHED FOR PROCESS VENTS STREAMS
             Control technique
                                   Parameters to be monitored
                         Established operating parameter(s)
Thermal incinerator
Catalytic incinerator
Boiler or process heater
Absorber 	
Condenser
                           Firebox temperature	
                           Temperature  upstream and  downstream  of
                            the catalyst bed.

                           Firebox temperature	
                           Liquid flow rate or pressure drop; and pH of
                            scrubber effluent, if an acid or base absorb-
                            ent is used.
                           Exit temperature	
                    Minimum temperature.
                    Minimum upstream  temperature; and  min-
                      imum  temperature difference  across the
                      catalyst bed.
                    Minimum temperature.
                    Minimum flow rate  or  pressure  drop; and
                      maximum pH if an acid absorbent is used,
                      or minimum pH if a base absorbent is used.'
                    Maximum temperature.

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                Federal Register/Vol.  64,  No.  104/Tuesday, June 1,  1999/Rules and  Regulations
                                                                                    29487
TABLE 7 TO SUBPART PPP OF PART 63.—OPERATING PARAMETERS FOR WHICH MONITORING LEVELS ARE REQUIRED To
                              BE ESTABLISHED FOR PROCESS VENTS STREAMS—Continued
             Control technique
                  Parameters to be monitored
                         Established operating parameter(s)
Carbon adsorber
Extended Cookout (ECO)
Other devices  (or  as  an  alternate  to the
  above). •
          Total regeneration stream mass or volumetric
            flow during carbon bed regeneration cycle;
            and temperature of the carbon bed after re-
            generation (and within 15 minutes of com-
            pleting any cooling cycle(s)).
          Time from the end of the epoxide feed to the
            end of the ECO, or the reactor epoxide par-
            tial pressure at the end of the ECO, or the
            epoxide concentration in  the reactor liquid
            at the end of the ECO.
          HAP concentration level or reading at outlet of
            device.
                    Maximum mass or volumetric flow; and max-
                      imum temperature.
                    Minimum  duration, or maximum partial  pres-
                      sure at the end of ECO, or maximum epox-
                      ide concentration in the reactor liquid at the
                      end of ECO.

                    Maximum HAP concentration or reading.
  •Concentration is measured instead of an operating parameter.

               TABLE 8 TO SUBPART PPP OF PART 63.—ROUTINE REPORTS REQUIRED BY THIS SUBPART
           Reference
      Description of Report
                          Due Date
§63.1439(b) and Subpart A

§63.1439(e)(3) 	
§63.1439(e)(4)
§63.1439(e)(5)
§63.1439(e)(6)
Refer to §63.1439(b), Table 1 of
  this subpart, and to subpart A.
Initial notification 	
Precompliance Report •
§63.1439(e)(6)(v)(iii)


§63.506(e)(7)(i)	
Notification of Compliance Status b
Periodic Reports 	

Quarterly reports for sources with
  excursions (upon  request of the
  Administrator).
Storage Vessels Notification of In-
  spection.
Refer to subpart A.

Existing affected sources: by 120 days after June 1, 1999.
New affected sources w/initial start-up at least 90 days after June 1,
  1999: submit the application for approval of construction or recon-
  struction in lieu of the Initial Notification.
New affected sources w/initial start-up prior to 90 days after June 1,
  1999: by 90 days after June 1, 1999.
Existing affected sources: 12 months prior to compliance date.
New affected sources: with the application for approval of construc-
  tion or reconstruction.
Within 150 days after the compliance date.
Semiannually, no later than 60 days after the end of each 6-month
  period. See §63.1439(e)(6)(i) for the due dale for this report.
No later than 60 days after the end of each quarter.


At least 30 days prior to the refilling of each storage vessel or the in-
  spection of each storage vessel.
  •There may be two versions of this report due at different times; one for equipment subject to §63.1434 and one for other emission points
subject to this subpart.
  bThere will be two versions of this report due at different times; one for equipment subject to §63.1434 and one for other emission points sub-
ject to this subpart.
[FR Doc. 99-12479 Filed 5-28-99; 8:45 am]

BILLING CODE 6560-50-P

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Appendix B - Example Forms
           B-l

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   Application for Approval of Construction or Reconstruction

This is a sample application for approval of construction or reconstruction, which must be
submitted for new sources with initial start-up on or after August 30,1999, to meet the
requirements in §63.1439(e)(3)(ii)(B).
                                    B-2

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Application for Approval of Construction or Reconstruction
Applicable Rule:    40 CFR Part 63, Subpart PPP - National Emission Standards
                   for Hazardous Air Pollutants for Polyether Polyols
                   Production. Initial Notification is being made in accordance
                   with §63.1439(e)(3).

1. Print or type the following general information for each plant in which
   polyether polyol production operations are performed (§63.1439(e)(3)):

   Owner/Operator/Title:	
   Street Address:	
   City:  	  State:	  Zip Code: _
   Plant Name:	
   Plant Contact/Title:	
   Plant Contact Phone Number (optional):	
   Plant Address (if different than owner/operator's)
   Street Address:	
   City:	     State: 	    Zip Code:
2. When do you plan to commence construction or reconstruction of the new
major affected source? 	
3. In addition to the information requested above, please include the following
information in each application for approval of construction or reconstruction:

•  Notification that you intend to construct a new major affected source or make
   any physical change or operational change to a major affected source that
   may meet or has been determined to meet the criteria for a "reconstruction,"
   as defined in §63.1423.

•  The expected completion date of the construction or reconstruction:	
•  The anticipated date of initial start-up of the source:
                                   B-3

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Application for Approval of Construction or Reconstruction

•  The type and quantity of HAP emitted by the source, reported in units and
   averaging times, or, if actual emissions data are not yet available, an estimate
   of the type and quantity of HAP expected to be emitted by your source (in
   units and averaging times):	:	.	
4. In addition to the information requested above, please include the following
information in each application for approval of reconstruction:

•  A brief description of the affected source and the components that are to be
   replaced:	
   A description of present and proposed emission control systems, including
   each control device, its estimated control efficiency, and calculations of
   emission estimates in sufficient detail for the EPA to evaluate the control
   efficiency determination:	
   An estimate of the fixed capital cost of the replacements:.
   An estimate of the cost of constructing a comparable entirely new source:
                                   B-4

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Application for Approval of Construction or Reconstruction

•   The estimated life of the affected source after the replacements	
   Discuss any economic or technical problems that you may have in complying
   with these requirements after the proposed replacements:	
                                B-5

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                        Precompliance Report

This is a sample Precompliance Report form that can be used by facilities at their
discretion to meet the requirements in §63.1439(e)(4).
                                   B-6

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                     Precompliance Report


Applicable Rule:    40 CFR Part 63, Subpart PPP - National Emission Standards
                  for Hazardous Air Pollutants for Polyether Polyols
                  Production. Initial Notification is being made in accordance
                  with §63.1439(e)(3).

1.  Print or type the following general information for each plant in which
   polyether polyol production operations are performed (§63.1439(e)(3)):

   Owner/Operator/Title:	
   Street Address:	
   City: 	 State:	 Zip Code: _
   Plant Name:	
   Plant Contact/Title:	
   Plant Contact Phone Number (optional):	
   Plant Address (if different than owner/operator's)
   Street Address:	
   City:	    • State:  	     Zip Code:	

2.  Are you requesting a compliance extension?  n Yes  n No

If yes, please provide the following information:
•  A description of the controls you will install to comply with the standard:
   Your compliance schedule, with a date by which each step towards
   compliance will be reached. At a minimum, provide the following information
   in your compliance schedule:

   (1)  The date by which contracts for emission control systems or process
   changes will be awarded (and/or the date by which you will issue orders for
   the purchase of necessary components):	
                                   B-7

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                  Precompliance Report

(2) The date by which on-site construction, installation of emission control
equipment, or process change will be initiated:	
(3) The date by which the above steps will be completed:.
(4) The date by which initial compliance will be achieved:.
Are you also requesting an extension of other applicable requirements in
subpart PPP?
 n Yes n No [If yes, please provide the information requested above for the
other requirements for which you are requesting a compliance extension.]

Do you wish to use a control technique other than those for which monitoring
parameters are specified by subpart PPP, and/or do you with to comply with
the  provisions of subpart PPP by monitoring a different parameter than those
specified in subpart PPP?  n Yes  n No

Do you wish to comply with the provisions of subpart PPP by using alternative
continuous monitoring and recordkeeping, as described in §63.1439(g)?
 o Yes n No [If yes, submit information in §63.8(f)(4)(ii)

Do you wish to comply with the provisions of subpart PPP by using alternative
controls (to those described in subpart PPP)?   n Yes  n No [If yes, submit
information in §63.69g)?

Are you requesting approval to incorporate a provision for ceasing to collect
monitoring data during a start-up, shutdown, or malfunction, into the start-up,
shutdown, and malfunction plan?  D Yes a No
If yes, please provide documentation supporting your claim that your
monitoring equipment would be damaged if you did not cease to collect
monitoring data during a contemporaneous start-up, shutdown, or
malfunction:
                                B-8

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                  Precompliance Report
Are you establishing your parameter monitoring levels based exclusively on
parameter values measured during a performance test?   n Yes  n No
If no, please identify the procedures (i.e., those in §63.1438(c) or (d)) that you
will use to establish your parameter monitoring levels, and describe how the
parameter monitoring levels will be established:	
                               B-9

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     Notification of Compliance Status For Equipment Leaks
This is a sample form for Notification of Compliance Status for Equipment Leaks that can
be used by facilities at their discretion to meet the requirements in §63.1439(e)(5) and
§63.182(c).
Applicable Rule:   40 CFR Part 63, Subpart PPP - National Emission Standards
                  for Hazardous Air Pollutants for Polyether Poiyols
                  Production.

1.  Print or type the following general information for your polyether polyol
   production plant:

   Owner/Operator/Title:	•
   Street Address:
   City: 	 State:	  Zip Code: _
   Plant Name:	
   Plant Contact/Title:	
   Plant Contact Phone Number (optional):	
   Plant Address (if different than owner/operator's)
   Street Address:	
   City:	     State:  	     Zip Code:

2.  For each process unit subject to subpart PPP, please list:

•  Process unit identification number:
   Number of each equipment type (e.g., valves or pumps), excluding equipment
   in vacuum service:
                                   B-10

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  Notification of Compliance Status For Equipment Leaks

 Equipment type          Number             Method of Compliance with
                                           the Standard
•  Planned compliance schedule for each phase of the equipment leak
   requirements.

3.  Are you using pressure testing to show compliance with the equipment leak
   requirements for batch product process equipment?  n Yes n No
   If yes, please list:
•  All batch products or product codes subject to the equipment leak provisions
   in subpart PPP:	
   Your planned schedule for pressure testing when equipment is producing
   polyether polyols:
                                B-l

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  Notification of Compliance Status For Equipment Leaks

4.  If your process vents are enclosed, so that all emissions from equipment leaks
   are vented through a closed-vent system to an approved control device, and
   the enclosure is maintained under negative pressure during all production
   periods, please provide the following information:
•  Process unit identification:	
   A description of the system used to create negative pressure in the enclosure
   and of the control device used:	
                                 B-12

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                  Notification of Compliance Status

This is a sample form for Notification of Compliance Status that can be used by facilities at
their discretion to meet the requirements in §63.1439(e)(5). Use this form for all emission
points, except Equipment Leaks.
Applicable Rule:    40 CFR Part 63, Subpart PPP - National Emission Standards
                   for Hazardous Air Pollutants for Polyether Polyols
                   Production.

1.  Print or type the following general information for your polyether polyol
   production plant:

   Owner/Operator/Title:	
   Street Address:	
   City: 	  State:	  Zip Code: _
   Plant Name:	
   Plant Contact/Title:	
   Plant Contact Phone Number (optional):	
   Plant Address (if different than owner/operator's)
   Street Address:	
   City:	     State: 	     Zip Code:
1.  Provide the following information, as appropriate:  (1) the results of all
   emission point group determinations; (2) the results of all process section
   applicability determinations; (3) the results of all performance tests; (4) the
   results of all inspections; (5) the results of all continuous monitoring system
   performance evaluations; (6) any other information required to be in the test
   report used to demonstrate compliance; (7) the values of monitored
   parameters established during performance tests;  and (8) any other
   information required to be included in the Notification of Compliance Status
   by subpart PPP.
                                   B-13

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                                         TECHNICAL REPORT DATA
                                    (Please read Instructions on reverse before completing)
  1. REPORT NO.
    EPA-456/R-00-002
                                                                            3. RECIPIENT'S ACCESSION NO.
  4. TITLE AND SUBTITLE
    Implementation Document for the Polyether Polyols Production
    NESHAP (40 CFR 62, Subpart PPP)
                    5. REPORT DATE
                      September 2000
                                                                            6. PERFORMING ORGANIZATION CODE
  7. AUTHOR(S)
    Janet McDonald, EC/R, Incorporated
                                                                             8. PERFORMING ORGANIZATION REPORT NO.
  9. PERFORMING ORGANIZATION NAME AND ADDRESS
   U.S. Environmental Protection Agency
   Office of Air Quality Planning and Standards
   MD-12
   Research Triangle Park, NC 27711	
                                                                             10. PROGRAM ELEMENT NO.
                    11. CONTRACT/GRANT NO.
                      68D60008
  12. SPONSORING AGENCY NAME AND ADDRESS
   Office of Air Quality Planning and Standards
    Office of Air and Radiation
    U.S. Environmental Protection Agency
    Research Triangle Park, NC 27711
                    13. TYPE OF REPORT AND PERIOD COVERED

                    Final
                    14. SPONSORING AGENCY CODE
                    EPA/200/04
  15. SUPPLEMENTARY NOTES
    Project Officer is Carolyn Wigington, Mail Drop 13 (919-541-5374)
    Work Assignment Manager is Ingrid Ward, Mail Drop 12 (919-541-0300)
  16. ABSTRACT

  National emission standards to control emissions of HAP from major sources producing polyether polyols were published in the
  Federal Register 6/1/99, 64 FR 29420.  This document contains information to help State and local agencies for air pollution
  control, as well as the regulated community, to carry out these standards. This document summarizes the NESHAP
  requirements and also provides inspection checklists and example notification and reporting forms. The electronic version of
  this document can be downloaded at www.epa.gv/ttn/uatw/polyol/polyolpg.html.
                                              KEY WORDS AND DOCUMENT ANALYSIS
                       DESCRIPTORS
                                                         k. IDENTIFIERS/OPEN ENDED TERMS
                                                                                                  o. COSATI FfeU/Grau>
  Air pollution                      NESHAP
  National emission standards         Compliance
  Hazardous air pollutants            40 CFR 63
  Polyether Polyols Production       Subpart PPP
  Title IH
Air Pollution control
Polyether polyols production
  18. DISTRIBUTION STATEMENT

   Release Unlimited
19. SECURITY CLASS (Ktfon)
  Unclassified
21. NO. OF PAGES
161 (UATW)
236 (hard copy)
                                                         20. SECURITY CLASS (Pagt)
                                                           Unclassified
                                          22. PRICE
                                          No cost
EPA Form 2ZZO-1 (Rev. 4-77)
                        PREVIOUS EDmON IS OBSOLETE

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