Oft* off #
The Plain Language
Implementation Assistance
Document for 40 CFR Part
63 Subpart DD fOff-Site
Waste and Recovery !
Operations
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EPA-456/R-99-Q07
The Plain Language Implementation Assistance
Document for 40 CFR 63 Subpart DD
(National Emissions Standards for Hazardous Air
Pollutants from Off-Site Waste and
Recovery Operations)
Prepared for:
Office of Air Quality Planning and Standards
US Environmental Protection Agency
Research Triangle Park, NC 27711
Prepared by:
Research Triangle Institute
Post Office Box 12194
Research Triangle Park, NC 27709
October 4 1999
U.S. Environmental Protection Agency
Region 5, Library (PL-12J)
77 West Jackson Boulevard, 12th Floor
Chicago, IL 60604-3590
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Thank You
This document was prepared by a joint partnership among the U.S. Environmental Protection
Agency, State and local air quality agencies personnel and the Chemical Manufactures
Association. EPA also worked closely (through a contract) with the Research Triangle Institute
(RTI) to develop this document. Special thanks goes out to:
Larry Brockman, EPA, OAQPS
Alexandra Dunn, CMA
Barry Feldman, EPA Region 6
Elaine Manning, EPA, OAQPS
Dave Morgan, MI-DEQ
Paul Peterson, RTI
Tony Petruska, EPA Region VII
Lisa Trembly, U.S. Navy
Bob Zerbonia, RTI
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Contents
Chapter Page
1 - Introduction 1-1
Why should I use this document? 1-1
How do I get copies of this document? 1-1
We want your feedback 1-2
2 - Applicability 2-1
What is the purpose of the OSWRO NESHAP? 2-1
What are the applicable rule citations in 40 CFR Part 63? 2-1
How can I determine if my facility is subject to the rule? 2-2
3 - General Standards 3-1
My facility is subject to the OSWRO NESHAP, what must I do to comply? 3-1
When do I need to comply? 3-1
What are the affected sources at my facility? 3-2
What is an off-site material management unit? 3-2
Which process vents are subject to the rule? 3-3
What types of equipment components are considered equipment leaks
affected sources? 3-3
How are the air emission control standards applied to affected sources? 3-4
What options do I have in complying with the general standards? 3-4
4 - Tank Air Emission Control, Inspection and Monitoring Requirements 4-1
What are the air emission control requirements for tanks? 4-1
What are the requirements for a tank using Level 1 controls? 4-1
What are the requirements for tank using Level 2 controls? 4-2
If I choose to use a tank equipped with a fixed roof with an internal floating roof,
how do I comply with the rule? 4-3
If I choose to use a tank equipped with an external floating roof, how do I
comply with the rule? 4-5
If I choose to vent to a control device, how do I comply with the rule? 4-8
If I choose to use a pressure tank, how do I comply with the rule? 4-10
If I choose to use an enclosure vented through a closed-vent system to an
enclosed combustion control device, how do ! comply with the rule? 4-11
5 - Oil-Water and Organic-Water Separator Air Emission Control, Inspection and
Monitoring Requirements 5-1
What are the air emission control standards for oil-water and
organic-water separators? 5-1
If I choose to use a separator equipped with an external floating roof, how do I
comply with the rule? 5-1
If I choose to use a fixed roof vented through a closed-vent system to a control
device, how do I comply with the rule? 5-3
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Chapter Page
If I choose to use a pressurized separator, how do I comply with the rule? 5-5
6 - Surface Impoundment Air Emission Control, Inspection, and Monitoring Requirements
What are the air emission control standards for surface impoundments? 6-1
If I choose to use a floating membrane cover, how do I comply with the rule? 6-1
If I choose to use a cover vented to a control device, how do I comply with the rule? 6-3
7 - Container Air Emission Control, Inspection, and Monitoring Requirements 7-1
What are the air emission control, inspection, and monitoring requirements
for containers? 7-1
If I have a container using Level 1 controls, how do I comply with the rule? 7-1
If I have a container using Level 2 controls, how do I comply with the rule? 7-3
If I have a container using Level 3 controls, how do I comply with the rule? 7-5
8 - Transfer System Air Emission Control, Inspection, and Monitoring Requirements . 8-1
What are the air emission control, inspection, and monitoring requirements for transfer
systems? 8-1
If I use an individual drain system subject to subpart RR, how do I comply
with the rule? 8-1
If I use any other type of transfer system subject to § 63.689(c), how do I comply
with the rule? 8-4
If I choose to use a transfer system using covers, how do I comply with
the rule? 8-4
If I choose to use hard piping, how do I comply with the rule? 8-6
If I choose to use a transfer system that is enclosed and vented through a
closed-vent system to a control device, how do I comply with the rule?8-6
9 - Process Vent Air Emission Control, Inspection, and Monitoring Requirements .... 9-1
What are the air emission control, inspection, and monitoring requirements for process
vents? 9-1
10 - Equipment Leak Air Emission Control, Inspection, and Monitoring Requirements 10-1
What are the air emission control, inspection, and monitoring requirements for
equipment leaks? 10-1
11 - Closed-Vent System Air Emission Control, Inspection, & Monitoring Requirements'1-1
What are the air emission control, inspection, and monitoring requirements for
closed-vent systems? 11-1
If I use a closed-vent system designed to operate with no detectable organic
emissions, how do I comply with the rule? 11-1
If I choose to use a closed-vent systems designed to operate at a pressure below
atmospheric pressure, how do I comply with the rule? 11-2
If I use a bypass device, what requirements must I meet? 11-3
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Chapter
12 - Control Device Air Emission Control, inspection, and Monitoring Requirements . 12-1
What are the air emission control, inspection, and monitoring requirements for control
devices? 12-1
What are the requirements for a carbon adsorption system? 12-1
How do I manage the carbon from my carbon adsorption system? 12-2
What are the requirements for a condenser? 12-3
What are the requirements for a vapor incinerator? 12-4
What are the requirements for boilers and process heaters? 12-5
What are the requirements for flare control devices? 12-7
Are there any other general requirements that I must meet for my control device? 12-8
How do I know if I have had an excursion? 12-9
What if inspection of my equipment is dangerous? 12-10
13 - Test Methods and Procedures 13-1
Does the rule require me to use any test methods? 13-1
14 - Recordkeeping, Notification, and Reporting Requirements 14-1
What do I have to report and when? 14-1
Can I get example reporting forms? 14-1
What records must I keep? 14-1
What reports must I submit? 14-2
15 - Other Requirements and Information 15-1
Who administers this regulation? 15-1
Do I need a title V permit? 15-1
How do I change my permit to include this rule? 15-2
What portions of the General Provisions apply? 15-2
Is a Startup, Shutdown, and Malfunction Plan required? 15-2
16 - Getting Additional Help 16-1
Whom can I ask for help? 16-1
Can I get more information on the Web? 16-2
Appendices
Appendix A - Contents for 40 CFR Part 63, Subpart DD, Final Rule A-1
Appendix B - General Inspection Guidance B-1
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Chapter 1 - Introduction
Knowing if you're
subject to the rule is
your first step in
complying with the
rule.
Keep informed of rule
changes by checking
the Federal Register
Checkout the web
page for this rule at
http://www.epa.gov/ttn
uatw 1 /offwaste/rioswa
o.html
Why should I use this document?
This document can help you understand the requirements for the
Off-Site Waste and Recovery Operations National Emission
Standards for Hazardous Air Pollutants (also known as OSWRO
NESHAP) by helping you determine four main things:
• if the rule applies to your facility and process
• what compliance options are available
• what to monitor, record, and report
• dates by which you must meet requirements
This document does not replace the final rule and we (the EPA) will
likely not update its contents to include any new requirements.
For a copy of the rule, see EPA's Unified Air Toxics Website
(htto//:www.epa.gov/ttnuatw1/offwaste/rioswao.html). You should
keep abreast of new requirements, printed after publication of this
document, by periodically checking the Federal Register and the
Code of Federal Regulations (CFR).
How do I get copies of this document?
You can get copies of this document in three ways.
• EPA's Unified Air Toxics Website
(http://www.epa.gov/ttnuatw1/offwaste/rioswao.html), look
under Rules and Implementation, Off-Site Waste and
Recovery Operations
• the Library Services Office (MD-35), US EPA, Research
Triangle Park, NC 27711 (limited supply)
• the National Technical Information Services (NTIS), 5285
Port Royal Road, Springfield, VA 22161 (NTIS will charge
you a fee for this document)
1-1
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Chapter 7 - Introduction
Help us publish a
better document by
filling out our survey.
We want your feedback
To serve you better, we have included a survey on the usefulness of
this document. If you would like to participate, please fill out the
survey on page 3 and return it to the address indicated. We will
keep your responses confidential, but use them to help improve
future documents.
1-2
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Off-Site Waste and Recovery Operations NESHAP Implementation Document Survey
Please help us gauge the usefulness of this document by completing this short form. We will keep you responses
confidential but use them to help improve future documents.
1 What type of business do you work for? (check one of the following)
Manufacturing a Contractor a
Government (specify Federal, State, local, tribal)
Tribe n
Other
2. What are your job responsibilities? (check any of the following that apply)
Plant operator Q Maintenance o Plant Manager n
Environmental Staff D Other
3 How did you hear about this guidance? (check one of the following)
Co-worker n EPA TIN via dial-up modem n EPA TIN via the Web D
Other
Please indicate your agreement with the following statements from 1 = Strongly Agree to 5 = Strongly Disagree
Statement
The guidance was timely.
The document provides a good overview of the rule.
This document provides the type information that my organization needs to comply.
The guidance helped us achieve compliance more quickly than if we had developed our own.
Portions of this document have been incorporated into internal 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., formats, excluding information or including things that you did not
find in the document)?
7. Did you find the overall usage of this document to be:
extremely useful n very useful D so-so useful D
8. Other comments:
not very useful at all n
Provide additional comment on the back of this form or on a separate paper
Return survey to: Larry Brockman, US Environmental Protection Agency (EPA), Research Triangle Park (RTP) MD-12,
Research Triangle Park, NC 27711, (919)541-5398, fax (919) 541-2664. e-mail brockmann.larrv@epa.KOV
1-3
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Chapter 2 - Applicability
What is the purpose of the OSWRO NESHAP?
The National Emission Standards for Hazardous Air Pollutants
from Off-Site Waste and Recovery Operations (OSWRO) are a set of
rules promulgated under 40 CFR part 63. These rules provide for
the control of hazardous air pollutants (HAP) emissions from
selected waste management and recovery operations that are not
subject to federal air standards under other subparts in Part 63.
For a list of HAP regulated by this rule, see Table 1 of the rule.
What are the applicable rule citations in 40 CFR Part 63?
The applicability, general standards, compliance requirements,
test methods and procedures, reporting, recordkeeping, and some
unit-specific air emission control requirements are specified in
40 CFR Part 63 Subpart DD - National Emission Standards for
Hazardous Air Pollutants from Off-Site Waste and Recovery
Operations. In addition, Subpart DD cross-references the following
other subparts in Part 63 for the air emissions control requirements
to be applied to specific types of affected sources.
• Subpart OO - National Emission Standards for
Tanks-Level 1
National Emission Standards for Containers
National Emission Standards for Surface
Impoundments
National Emission Standards for Individual
Drain Systems
National Emission Standards for Oil-Water
Separators and Organic-Water Separators
Subpart PP -
Subpart QQ -
Subpart RR -
Subpart VV-
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Chapter 2 - Applicability
How can I determine if my facility is subject to the rule?
This chapter will help you determine if your facility is subject to
the National Emission Standards for Hazardous Air Pollutants from
Off-Site Waste and Recovery Operations in 40 CFR part 63.
The OSWRO NESHAP is applicable if a facility meets all 3 of the
following conditions. If any one of these conditions does not apply
to the facility, then you are not subject to the rule.
Your facility is a major
source if there are
facility-wide emissions
of more than 10 tons
per year for a single
HAP or more than
25 tons per year for
multiple HAP.
Condition 1 - The facility is a "major source" of HAP
emissions as defined in General Provisions to
40 CFR Part 63.
Condition 2 - "Off-site material" is shipped or transferred
to the facility. An "off-site material" is
specified in the rule as a material that meets
all of the following criteria:
1. The material is one of the following as
defined in rule:
• Waste - any material generated from
industrial, commercial, mining, or agricultural
operations or from community activities
which is discarded, discharged, or is being
treated before being discarded or discharged.
(This definition is consistent with other
NESHAP with the exception of certain
specific types of wastes listed in the rule)
• Used oil - any oil refined from crude oil or
any synthetic oil that has been used and as a
result of such use is contaminated by physical
or chemical impurities. (Same definition of
"used oil" by RCRA in 40 CFR 279.1)
• Used solvent - a mixture of aliphatic
hydrocarbons or a mixture of one and two
ring aromatic hydrocarbons that has been
used as a solvent and as a result of such use is
contaminated by physical or chemical
impurities.
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Chapter 2 - Applicability
2. The waste, used oil, or used solvent is not
generated at the facility but is instead shipped
or transferred to the facility from another
location.
3. The waste, used oil, or used solvent contains
one or more of the specific organic chemical
compounds, isomers, and mixtures listed in
Table 1 in the rule.
Condition 3 - The "off-site material" is managed at the
facility in a waste management operation or
recovery operation listed below.
• RCRA hazardous waste management
operation regulated as a hazardous waste
treatment, storage, and disposal facility
(TSDF) under 40 CFR parts 264 or 265.
• RCRA hazardous wastewater treatment
operation exempted from air emission control
requirements under 40 CFR parts 264 or 265.
• Non-hazardous wastewater treatment
operation where this operation is the
predominate function conducted at the
facility and the facility is not a publicly-
owned treatment works.
• RCRA-exempt hazardous waste recycling
facility.
• Used solvent recovery operation.
• Used oil recovery operation.
The following questions will help you determine if your facility
meets all three of these conditions and is subject to this rule.
1. Is your facility a "major source" of HAP emissions?
Yes? Co to Question 2
No? Stop, your facility is not subject to
40 CFR 63 subpart DD.
2-3
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Chapter 2 - Applicability
2. Do you handle any of the following waste management
operations or recovery operations? Does your facility...
2a. Manage RCRA hazardous waste with any subject to the
RCRA permitting requirements under either 40 CFR
part 264 or 40 CFR part 265?
Yes? Go to Question 3.
No? Continue with Question 2b.
2b. Manage RCRA hazardous waste in a wastewater
treatment operation exempt from the RCRA permitting
requirements by the provisions in 40 CFR 264.1(g)(6) or
40CFR265.1(c)(10)?
Yes? Go to Question 3.
No? Continue with Question 2c.
2c. Recycle or reprocess RCRA hazardous waste in a
recovery operation that is exempt from the RCRA
permitting requirements by the provisions in 40 CFR
264.1 (g)(2) or 40 CFR 265.1 (c)(6)?
Yes? Go to Question 3.
No? Continue with Question 2d.
2d. Predominately treat wastewaters that are not RCRA
hazardous wastes, while not being owned by a "state" as
defined by Clean Water Act section 502(3) or a
"municipality" as defined by Clean Water Act
section 502(4)?
Yes? Go to Question 3.
No? Continue with Question 2e.
2e. Recycle or reprocess "used solvent"in a recovery
operation that is not part of a chemical, petroleum, or
other manufacturing process already using air emission
controls to comply with another subpart of 40 CFR part
63?
Yes? Go to Question 3.
No? Continue with Question 2f.
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Chapter 2 - Applicability
Wasfe means a material
generated from industrial,
commercial, mining, or
agricultural operations or
from community activities;
and this material is
discarded, discharged, or is
being accumulated, stored,
or physically, chemically,
thermally, or biologically
treated before being
discarded or discharged
[see 40CFR 63.681],
Used solvent means a
mixture of aliphatic
hydrocarbons or a mixture
of one and two ring
aromatic hydrocarbons
used as a solvent and
because of such use it is
contaminated by physical
or chemical impurities [see
40CFR 63 681].
Used oil means any oil
refined from crude oil or
any synthetic oil that has
been used and as a result of
such use is contaminated
by physical or chemical
impurities [see 40 CFR
279.1].
3f. Re-refine or reprocess "used oil" in a recovery
operation that is subject to 40 CFR 279 subpart F -
Standards for Used Oil Processors and Refiners?
Yes? Go to Question 3.
No? Stop. If you've answered no to all Questions 2a
through 2f your facility is not subject to 40 CFR 63
subpart DD.
3. Are any of the materials listed in Questions 3a through
3c shipped or transferred to your facility from other
facilities (i.e., not generated at your facility)? For the
purpose of subpart DD all of the following can be
considered off-site material. For a list of materials which
are not considered off-site material for the purpose of
subpart DD see Table 2.1.
3a. Is waste shipped or transferred to your facility?
Yes? Go to Question 4.
No? Continue with Question 3b.
3b. Is used solvent shipped or transferred to your facility?
Yes? Go to Question 4.
No? Continue with Question 3c.
3c. Is used oil shipped or transferred to your facility?
Yes? Go to Question 4.
No? Stop. If you've answered No to all questions 3a
through 3c then your facility is not subject to
40 CFR 63 subpart DD
4. Do any of the materials (waste, used oil, or used solvent)
being shipped or transferred to your facility contain
Hazardous Air Pollutants (HAP) from the list in Table 1 of
the rule?
Yes? Go to Question 5.
No? Stop. Your facility is not subject to 40 CFR 63
subpart DD.
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Chapter 2 - Applicability
5. Again, is your facility a "major source" of HAP
emissions? [Note: At this time if you have not
already done so, you must determine whether your
facility is a "major source" of HAP emissions (see
Question 1).
Yes? Then your facility is subject to
40 CFR 63 subpart DD.
No? Stop, your facility is not subject to
40 CFR 63 subpart DD.
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Chapter 2 - Applicability
Table 2.1 - Materials not considered off-site materials for the purpose of subpart DD
Material
Household waste
Radioactive mixed waste
Remedial activity waste
Residential household
waste containing HAPs
Waste transferred from a
chemical manufacturing
plant. (Must meet both
conditions).
Waste transferred from a
chemical manufacturing
plant, petroleum
refinery, or coke by-
product recovery plant
which is subject to
40 CFR 61 subpart FF.
(Must meet both
conditions).
Ship ballast water
Hazardous waste stored
less than 10 days
Citation(§)
63.680(b)(2)(i)
63.680(b)(2)(ii)
63.680(b)(2)(iii)
63.680(b)(2)(iv)
63.680(b)(2)(v)
63.680(b)(2)(vi)
63.680(b)(2)(vii)
63.680(b)(2)(viii)
Description/Conditions
As defined in 40 CFR 258.2
Must be managed in accordance with all
applicable regulations under the Atomic Energy
Act and Nuclear Waste Policy Act authorities.
Waste generated as a result of implementing
remedial activities under RCRA, CERCLA, or
similar Federal or State authorities.
Old paint, home garden pesticides, etc. collected
as a community service by government agencies,
businesses, or other organizations for the
purpose of promoting the proper disposal of
waste.
Such that:
1 . Management of waste must be required either
under 40 CFR 63, subpart F - National Emission
Standards for Organic Hazardous Air Pollutants
from the Synthetic Organic Chemical
Manufacturing Industry or under another subpart
of 40 CFR part 63 to meet the air emission
control standards for process wastewater
specified in 40 CFR 63.132 through 63.147; and
2. Comply with the provisions of 40 CFR
63.1 32(g)(1)(ii) and (g)(2).
Such that:
1 . The waste is not exempted from meeting the
air emission control standards of subpart FF by
the provisions of 40 CFR 61 .342(a); and
2. You have complied with the provisions of
40CFR61.342(f)(2).
Ballast water pumped from a ship to an onshore
wastewater treatment facility.
Must be in compliance with the provisions of
40 CFR 263. 12.
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Chapter 3 - General Standards
Table 3.1 summarizes
the compliance
options under the
general standards.
My facility is subject to the OSWRO NESHAP, what must I do to
comply?
You demonstrate compliance with § 63.680 through § 63.698 by
doing all of the foil owing:
1. Identify the affected sources at your facility (i.e., off-site
material management units, process vents, and
equipment leaks).
2. Identify the applicable compliance options allowed
under the general standards for each affected source (see
the "Options" section on page 3-4 of this chapter).
3. Choose and implement the compliance option for each
affected source.
4. Maintain the records described in Chapter 14 of this
document.
5. Submit the reports described in Chapter 14 of this
document.
When do I need to comply?
If your facility is an existing source, you must comply by February 1,
2000. If you are a new source, comply before you begin operating.
If you commenced
construction or
reconstruction
before Oct. 13, 1994
after Oct. 13, 1994
then. . .
you are an existing
source
you are a new
source
and must be in
compliance. . .
by February 1, 2000
upon initial startup
The rule also requires you to submit notifications and annual and
semiannual reports. Check Chapter 14 for reporting dates and
example forms.
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Chapter 3 - General Standards
For Tank
requirements see
Chapter 4.
For Oil-Water and
Organic-Water
Separators see
Chapter 5.
For Surface
Impoundment
requirements see
Chapter 6.
For Container
requirements see
Chapter 7.
For Transfer system
requirements see
Chapter 8.
What are the affected sources at my facility?
There are three groups of affected sources:
1. Off-site material management units
2. Process vents
3. Equipment leaks
What is an off-site material management unit?
An off-site material management unit is any one of the
following:
• Tanks used to manage "off-site material." A tank is a
stationary unit constructed of nonearthen materials
(wood, concrete, steel, fiberglass, or plastic) which holds
an accumulation of liquids or other material
• Oil-water and organic-water separators used to manage
"off-site material." An oil-water separator is a separator
designed to separate oil from water, and an organic-
water separator is a separator designed to separate
organics from water.
• Surface impoundments used to manage "off-site
material." A surface impoundment is a natural
topographical depression, man-made excavation, or
diked area formed primarily of earthen materials which is
designed to hold an accumulation of liquids.
• Containers used to manage "off-site material." A
container is a portable unit used to hold materials.
• Transfer systems used to manage "off-site material." A
transfer system is any system whose predominant
function is to convey liquids from one point to another
point within a waste management operation. (A
container, or self-propelled vehicle is not considered a
transfer system).
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Chapter 3 - General Standards
For Process Vent
requirements see
Chapter 9.
For Equipment Leak
requirements see
Chapter 10.
Which process vents are subject to the rule?
• Process vents which are installed on any of the following
operations used to treat off-site material are subject to
subpart DD:
1. Distillation processes
2. Fractionation processes
3. Thin-film evaporation
4. Solvent extraction
5. Steam stripping process
6. Air stripping process
• A process vent is an open-ended pipe, stack, or duct
through which a gas stream containing HAP is
discharged either intermittently or continuously (This
does not include pressure relief vents, vents used as
safety devices, any vent subject to the standards for
equipment leaks, or stacks or other vents used to exhaust
combustion gas from a boiler, furnace, process heater,
incinerator, or other combustion device.)
What types of equipment components are considered affected
equipment leak sources?
Any leak from equipment components (e.g., pumps and
valves) which meet all of the following criteria:
1. The equipment component is a pump, compressor,
agitator, pressure relief device, sampling connection
system, open-ended valve or line, valve, connector, or
instrumentation system.
2. The equipment component contains or contacts off-site
material having an organic HAP concentration >10
percent.
3. The equipment component is intended to operate for
300 hours or more during a 12 month period.
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Chapter 3 - General Standards
How are the air emission control standards applied to affected
sources?
• Air emission controls are required on those affected sources
(other than equipment leaks) receiving "off-site material"
having a volatile organic HAP (VOHAP) concentration ^ 500
ppm mass weighted average.
• The air standards under the rule do not apply to either of the
following units at the facility:
- A unit that does not manage "off-site material."
- A unit that is not part of one of the six types of
affected waste management and recovery operations
specified in the rule (see page 2-3).
What options do I have in complying with the general standards?
For each affected source other than equipment leaks, you
must comply with one of the following alternatives:
Option 1. Determine that the average VOHAP concentration of
"off-site material" managed in the affected source is
< 500 ppmw mass weighted average.
• Determination of VOHAP concentration is made
based on "off-site material" composition at the point
where it enters the facility ("point-of-delivery" as
defined in the rule).
• VOHAP concentration is measured using
Method 305 in 40 CFR 63 Appendix A.
• As an alternative to using Method 305, you may
determine the HAP concentration of an "off-site
material" using any one of the several alternative test
methods and then adjust the test results using factors
specified in the rule to determine the VOHAP
concentration.
Option 2. Install and operate air emission controls in accordance
with the applicable control requirements specified in the
rule.
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Chapter 3 - General Standards
Option 3 is explained
in Table 3.2.
Option 3. Treat the "off-site material" prior to placement in the
affected source to remove or destroy the HAP in
accordance with one of the alternative treatment
standards specified in the rule.
Option 4. Meet one of the unit-specific control requirement
exemptions specified in the rule.
• Rule exemptions for off-site material management units
can be found in § 63.683(b)(2).
• Rule exemptions for process vents can be found in
§ 63.683(c)(2)
• Facility wide exemptions can be found in § 63.680(d)
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Table 3.1
Off-Site Waste and Recovery Operations NESHAP
Compliance Options for Affected Sources: Process Vents and
Off-Site Material Management Units
If an off-site material
management unit or process
vent is part of the affected
source, four primary regulatory
options potentially exist.
Option 1
Perform VOHAP Determination
Option 2
Use Air Emission Controls
1
Option 3
Treat Off-Site Material
Determine before placing the
off-site material in the unit that
the average VOHAP
concentration of the material is
< 500 ppmw using the
procedures specified
in § 63.694(b)
I
Option 4
Meet Exemption
Control air emissions from the
unit in accordance with
standards specified in §§
63.685 through 63.690
1
Remove or destroy HAP in the
off-site material before placing
it in the unit in accordance
with § 63.684 (this does not
apply to process vents)
See Table 3.2
I
Meet one of the exemptions for
either a off-site material
management unit or a
process vent
n
So
T3
S
n
3
I
I
a-
-------
u>
Table 3.2
Option 3
Off-Site Waste and Recovery Operations NESHAP
Off-Site Waste Management Units
VOHAP Concentration"
IfVOHAPcono
every stream is
then reduce the
concentration tc
ppmw
HAP Mass Removal* '
(MR)
entration in
> 500 ppmw
VOHAP
less than 500
or
When you have a mixture of
OSWRO streams that have
VOHAP concentrations > 500
ppmw and OSWRO streams
that have VOHAP
concentrations < 500 ppmw
then reduce me VOHAP
concentration to less than CR
established for the process or
less than the lowest VOHAP
concentration determined for
each off-site material streams
entering the process
MR must be greater than
or equal to the Required
Mass Removal Ratp
(RMR)
HAP Reduction
Efficiency*1'3 (R)
Biological
Degradation *1-*
If the average VOHAP
concentration < 10,000
ppmw then the total
quantity of HAP must be
roducpd by 95%
or
If the average VOHAP
concentration J> 10,000
ppmw then the total
quantity of HAP must be
roduced by at least 95%
and VOHAP concentration
must be < 100 ppmw at
pomt-of-treatmen!
bio —
or
MRbio > RMF
;
Incineration
Use one of the following
Incinerator with permit
under 40 CF R 2 70 or is
in compliance with
40 CFR 265
or
Boiler or industrial
furnace with permit under
40 CFR 270 or is in
compliance with
40 CFR 266
• - You must demonstrate that the treatment process achieves the selected
performance level Initial demonstration must be no less than 30 days after the
beginning of the treatment Thereafter at least once every calendar year
1 Must continuously monitor the operation as per § 63 684(e)(1) through (3)
2 Must continuously monitor the operation as per § 63 684(e)(4)
i Not to be uspxl for open tanks or surface impoundments
4 pprformed in an open tanl< or surface impoundment
o
Ui
I
o
as
51
Q.
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Chapter 4 - Tank Air Emission Control, Inspection and
Monitoring Requirements
If you choose to use a
control device, be sure
to also see the
chapters on closed-
vent systems and
control devices.
As an alternative to
using Level 1 controls,
you may use Level 2
controls instead.
See Tab/e 4.1 for a
walk-through of tank
requirements.
What are the air emission control requirements for tanks?
You must first determine which required control level you
must use (Level 1 or 2) which is determined by tank capacity and the
vapor pressure of the material. Tank control level categories are
specified in the rule in Table 3 (for existing tanks) and Table 4 (for
new tanks) of the rule.
What are the requirements for a tank using Level 1 controls?
Design
• Use a fixed roof with a closure device which is designed
to form a continuous barrier over the entire surface area
of the liquid in the tank. The fixed roof can be a separate
cover or an integral part of the tank structural design.
• There must be no visible cracks, holes, gaps, or other
open spaces between roof section joints or where the
roof edge meets the tank wall.
• Each opening in the fixed roof must either be equipped
with a closure device or connected to a closed-vent
system vented to a control device which removes or
destroys organics in the vent stream.
• The fixed roof must also be made of suitable material that
will minimize exposure of the off-site material to the
atmosphere.
Operation
• Closuie devices must be maintained in the closed
position with the exception of the following times:
1. Routine inspection, maintenance, or other activities
needed for normal operation.
2. Removal of accumulated sludge from the bottom of
the tank.
3. Maintaining tank internal pressure in accordance
with tank design specifications.
4-1
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Chapter 4 - Tank Requirements
General
Recordkeeping
requirements are in
Chapter 14
4. Opening a safety device to avoid an unsafe
condition.
Inspection/Monitoring
• Visually inspect the fixed roof and its closure devices for
any defect that could result in air emissions (i.e., cracks
holes, gaps in the roof section between the roof and the
tank wall, damaged seals or gaskets on the closure
devices, and damaged or missing closure devices).
Perform the initial inspection immediately following
installation and thereafter at least once every calender
year. Make certain that you maintain all of the required
records for every inspection conducted which must
include the following.
1. Tank ID number (or other unique identifier)
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Any defect must be repaired within 45 calender days of
detection with the first effort at repair within 5 calender
days of detection. If you determine that a tank must be
emptied or taken out of service to perform the repair and
no alternative tank capacity is available, then repair may
be delayed until the next time the material generating
unit stops operation and must be completed before the
generating unit resumes operation. Under this
circumstance, you must record the reason for the delay
and the date the completion of the repair is expected.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
What are the requirements for tank using Level 2 controls?
Use any one of the following five alternatives:
1. A tank equipped with a fixed roof with internal floating
roof.
2. A tank equipped with an external floating roof
4-2
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Chapter 4 - Tank Requirements
3. A tank equipped with a vapor-tight cover vented to
^95% control device
4. A pressure tank
5. A tank inside enclosure vented to combustion control
device
If I choose to use a tank equipped with a fixed roof with an
internal floating roof, how do I comply with the rule?
Meet the standards in § 63.685(e) which are described as
follows:
Design
• The internal floating roof must be designed to float on
the liquid surface except when it must be supported by
leg supports. It must also be equipped with a continuous
seal between the wall of the tank and the floating roof
edge which must be either:
1. A single continuous seal that is either a liquid-
mounted seal or a metallic shoe seal.
or
2. Two continuous seals mounted one above the other.
The lower seal may be a vapor-mounted seal.
• The internal floating roof must also meet the following
specifications:
1. Each opening in a noncontact internal floating roof
(except for automatic bleeder vents and rim space
vents) must provide a projection below the liquid
surface.
2. Each opening (except for leg sleeves, automatic
bleeder vents, rim space vents, column wells, ladder
wells, sample wells, and stub drains) must be
equipped with a gasketed cover or a gasketed lid.
3. Each penetration of the roof for the purpose of
sampling must have a slit fabric that covers at least 90
percent of the opening.
4. Automatic bleeder vents and rim vents are to be
gasketed.
5. Penetrations which allow for a ladder must have a
gasketed sliding cover.
4-3
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Chapter 4 - Tank Requirements
6. Penetrations which allow for the supporting columns
of the fixed roof must have a flexible fabric sleeve or
gasketed sliding cover.
Operation
• Filling of the tank must be continuous and accomplished
as soon as practical. Prior to filling, each cover, access
hatch, gauge float well or lid on any opening in the
internal floating roof must be bolted or fastened closed.
• Automatic bleeder vents are to be set closed at all times
when the roof is floating with the exception of when it is
being floated off or is being landed on the leg supports.
Rim space vents must only be open when the internal
floating roof is not floating or when the pressure beneath
the rim exceeds the manufacturer's recommended
settings.
Inspection/Monitoring
• Visually inspect the floating roof and its closure devices
for any defects (as specified in § 63.695(b)(1)(i)). Defects
to check for may include: the internal floating roof not
floating on the surface of the liquid inside the tank; liquid
has accumulated on top of the internal floating roof; any
portion of the roof seals that have detached from the roof
rim; holes, tears, or other openings that are visible in the
seal fabric; etc. Make certain that you maintain all of the
required records for every inspection conducted which
must include the following.
1. Tank ID number (or other unique identifier)
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Inspect the internal floating roof components which
includes visual inspection of the internal floating roof
components through openings on the roof at least once
every calendar year after initial fill, and visually inspect
the internal floating roof, primary seal, secondary seal (if
in service), gaskets, slotted membranes, and sleeve
4-4
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Chapter 4 - Tank Requirements
sealsd'f any) each time the tank is emptied and degassed
and at least every 10 years.
• If an internal floating roof is equipped with two
continuous seals mounted one above the other, you must
visually inspect the internal floating roof, primary and
secondary seals, gaskets, slotted membranes, and sleeve
seals (if any) each time the tank is emptied and degassed
and at least every five years.
• Any defect should be repaired within 45 calender days of
detection. If within this 45-day period the defect cannot
be repaired, you may be allowed two 30-day extensions.
Under this circumstance, you must record a description
of the defect, explain why alternative storage capacity is
not available, and specify a schedule of actions to ensure
equipment will be repaired as soon as possible.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
If I choose to use a tank equipped with an external floating roof,
how do I comply with the rule?
Meet the standards in § 63.685(f) which are described as
follows:
Design
• The external floating roof must be designed to float on
the liquid surface except when it must be supported by
leg supports. It must also be equipped with two
continuous seals, one above the other, between the wall
of the tank and the roof edge (The primary being the
lower seal and the secondary being the upper seal). The
primary seal must meet the following specifications:
1. It must be a liquid-mounted seal or a metallic shoe
seal.
2. Total area of the gaps between the tank wall and the
primary seal must not exceed 212 cm2 per meter of
tank diameter and the width of any portion of these
gaps are not to exceed 3.8 cm.
4-5
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Chapter 4 - Tank Requirements
3. If a metallic shoe seal is used, it must be designed so
that one end extends into the liquid and the other
end extends a vertical distance of at least 61 cm
above the liquid surface.
The secondary seal must meet the following
specifications:
1. It is to be mounted above the primary seal and cover
the annular space between the floating roof and the
wall of the tank.
2. Total area of the gaps between the tank wall are not
to exceed 21.2 cm2 per meter of tank diameter, and
the width of any portion of these gaps are not to
exceed 1.8 cm.
The external floating roof must also meet the following
specifications:
1. Each opening in a noncontact external floating roof
must provide a projection below the liquid surface,
with the exception of automatic bleeder vents and
rim space vents.
2. Each opening must be equipped with a gasketed
cover, with the exception of automatic bleeder vents,
rim space vents, roof drains, and leg sleeves.
3. Each access hatch and gauge float well is to be
equipped with covers which can be bolted or
fastened when the cover is closed.
4. Each automatic bleeder vent and rim space vent is to
be equipped with a gasket.
5. Each roof drain which empties into the managed
liquid is to be equipped with a slotted membrane
fabric cover which covers at least 90 percent of the
opening.
6. Each unslotted and slotted guide pole is to be
equipped with a gasketed sliding cover or flexible
fabric sleeve seal.
7. Each unslotted guide pole is to have a gasketed cap
on the end of the pole.
8. Each slotted guide pole is to be equipped with a
gasketed float or other device which closes off the
surface from the atmosphere.
4-6
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Chapter 4 - Tank Requirements
If a tank ceases to hold
off-site material for a
period of one year or
more, subsequent
introduction of off-site
material into the tank
will be considered an
initial operation for the
purposes of
§§ 63.695(b)(2)(i)(A)
and (B).
9. Each gauge hatch and each sample well is to be
equipped with a gasketed cover.
Operation
• Filling of the tank must be continuous and accomplished
as soon as practical.
• Openings in the roof, with the exception of automatic
bleeder vents, rim space vents, roof drains, and leg
sleeves, must be maintained in the closed position
except when they must be opened for access.
• Covers on access hatches and gauge floats are to be
bolted or fastened when they are in the closed position.
• Automatic bleeder vents are to be set closed at all times
when the roof is floating with the exception of when it is
being floated off or is being landed on the leg supports.
Rim space vents must only be open when the external
floating roof is not floating or when the pressure beneath
the rim exceeds the manufacturer's recommended
settings.
• The cap on the end of each unslotted guide pole is to be
secured in the closed position at all times except when
measuring the level or collecting samples of the liquid in
the tank.
• The cover on each gauge hatch or sample well is to kept
closed at all times except when the hatch or well must be
opened for access.
• Both the primary seal and the secondary seal are to
completely cover the annular space between the external
floating roof and the tank wall at all times except during
inspections.
/nspect/on/Mon/'tor/ng
• Measure the gaps between the tank wall and the primary
seal as well as the gaps between the tank wall and the
secondary seal within 60 days after initial operations of
the tank following installation of the floating roof and,
thereafter, at least once every five years.
4-7
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Chapter 4 - Tank Requirements
General
Recordkeeping
requirements can be
found in Chapter 14.
If you choose to use a
control device, be sure
to also see the
chapters on closed-
vent systems and
control devices.
• Measure the total surface area of the gaps in the primary
seal and in the secondary seal individually. Measure at
one or more floating roof levels when the roof is floating
off the roof supports and measure around the entire
perimeter of the floating roof in each place where a 0.32
cm diameter uniform probe passes freely. Also measure
the circumferential distance of each measured location.
Use probes of different sizes to accurately determine the
width of the gap and multiply the width by its respective
circumferential distance. Total gap area is calculated by
summing all of the gap surface areas for both the primary
seal and the secondary seal individually, and then
dividing by the nominal diameter of the tank.
• Make certain that you maintain all of the required
records for every inspection conducted which must
include the following.
1. Tank ID number (or other unique identifier)
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Any defect must be repaired within 45 calender days of
detection. If within this 45-day period the defect cannot
be repaired, you may be allowed two 30-day extensions.
Under this circumstance, you must record a description
of the defect, explain why alternative storage capacity is
not available, and specify a schedule of actions to ensure
equipment will be repaired as soon as possible.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
If I choose to vent to a control device, how do I comply with the
rule?
Meet the standards in § 63.685(g) which are described as
follows:
Design
• Use a fixed roof with a closure device which is designed
to form a continuous barrier over the entire surface area
4-8
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Chapter 4 - Tank Requirements
of the liquid in the tank. The roof and the closure devices
are to be constructed of suitable materials so as to
minimize the exposure of the off-site material to the
atmosphere. Openings not vented to a control device
are to be equipped with a closure device.
• If the pressure in the vapor headspace is less than
atmospheric pressure then there must be no visible
cracks, holes, gaps or other open spaces in the closure
device or between the perimeter of the cover opening
and the closure device.
• If the pressure in the vapor headspace is greater than
atmospheric pressure, then the closure device is to
operate with no detectable organic emissions.
Operation
• Closure devices are to be maintained in a closed position
with the exception of the following times:
1. Accessing the tank for performing routine inspection,
maintenance, or other activities needed for normal
operation.
2. Removal of accumulated sludge or other residues
from the bottom of the tank.
3. Opening of a safety device to avoid an unsafe
condition.
Inspection/Mon itoring
• Check for defects that could result in air emissions by
visually inspecting the fixed roof and its closure devices.
Defects include: visible cracks, holes, or gaps in the roof
sections or between the roof and the separator wall;
broken, cracked, or otherwise damaged seals or gaskets
on closure devices; and broken or missing hatches,
access covers, caps, or other closure devices. Make
certain that you maintain all of the required records for
every inspection conducted which must include the
following.
1. Tank ID number (or other unique identifier)
2. The date of the inspection
4-9
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Chapter 4 - Tank Requirements
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Perform the initial inspection following installation of the
fixed roof and thereafter at least once every calendar
year, unless you determine that the inspection would
expose a worker to dangerous, hazardous, or otherwise
unsafe conditions. If this is the case, you must maintain
documentation which designates the equipment as
"unsafe" and explains why the equipment is unsafe. You
must also implement a written plan to inspect the
equipment as frequently as is practicable.
• Any defect must be repaired within 45 calender days of
detection. If within this 45-day period the defect cannot
be repaired, you may be allowed two 30-day extensions.
Under this circumstance, you must record a description
of the defect, explain why alternative storage capacity is
not available, and specify a schedule of actions to ensure
equipment will be repaired as soon as possible.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document
(see Chapter 14).
If I choose to uses a pressure tank, how do I comply with the rule?
Meet the standards in § 63.685(h) which are described as
follows:
Design
• The tank is to be designed so that it does not vent to the
atmosphere as a result of the compression of the vapor
headspace during filling.
• All closure devices are to be designed to operate with no
detectable organic emissions.
Operation
• The tank is to be operated as a closed system that does
not vent to the atmosphere with the exception of the
following conditions:
4-10
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Chapter 4 - Tank Requirements
Use "Procedure 1-
Criteria for and
Verification of a
Permanent or
Temporary Total
Enclosure" under 40
CFR 52.741.
1. Opening of a safety device to avoid an unsafe
condition.
2. Purging of the inerts from the tank so long as the
purge stream is routed to a closed-vent system and
control device (see section on closed-vent systems
and section on control devices for further guidance).
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
If I choose to use an enclosure vented through a closed-vent
system to an enclosed combustion control device, how do I comply
with the rule?
Meet the standards in § 63.685(i) which are described as
follows:
Design
• The tank is to be located inside an enclosure which
meets the criteria for a total permanent enclosure. The
enclosure may have permanent or temporary openings to
allow worker access; passage of material into or out of
the enclosure by conveyor, vehicles, or other mechanical
means; entry of permanent mechanical or electrical
equipment; or to direct airflow into the enclosure.
• The enclosure is to be vented through a closed-vent
system to an enclosed combustion control device which
meets the standards for either a vapor incinerator, boiler,
or process heater.
Operation
• Opening of a safety device is allowed at any time
conditions require it to avoid an unsafe condition.
• Closed-vent systems are to be operated in accordance
with the requirements for closed-vent systems (see
closed-vent system section).
• Combustion control devices are to be operated in
accordance with the requirements of control devices (see
control devices section).
4-11
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Chapter 4 - Tank Requirements
*see closed-vent
systems section and
control devices
section for further
inspection guidance
Inspection/Monitoring*
• You must perform the verification procedure for the
enclosure initially when the enclosure is first installed
and, thereafter, annually.
4-12
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Chapter 4 - Tank Requirements
Table 4.1. Standards: Tanks
Question No.
Compliance Requirement
1. Do you use a tank to manage off-site material with a
maximum HAP vapor pressure greater than or
equal to 76.6 kPA?
Yes, go to question 6
No, go to question 2
2. Do you use a tank to manage for a waste
stabilization process (defined in § 63.681)?
Yes, go to question 6
No, go to question 3
For new and existing sources, determine whether
you will need to use Tank Level 1 controls or Tank
Level 2 controls. For existing sources, this can be
determined in Table 3 of the rule. For new sources,
this can be determined in Table 4 of the rule.
Level 1, goto
question 4
Level 2, go to
question 5
If you use Tank Level 1 controls, meet the following
requirements:
Q Determine the maximum HAP vapor
pressure of the off-site material before the
first time it is placed in the tank.
Q Make a new determination any time a
change in the off-site material could make a
change in the maximum HAP vapor
pressure.
Q Control air emissions in accordance with
40CFR63 subpartOO.
Q As an alternative, control air emissions in
accordance with Tank Level 2
requirements.
Q As an alternative, a tank used as an interim
transfer point may operate without a cover
during those periods of transfer. At all other
times, air emissions must be controlled as
stated in subpart OO.
Level 1 controls must
meet the requirements
of§63.685(c)
If you meet Tank
Level 1 requirements,
you are done with this
section.
4-13
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Chapter 4 - Tank Requirements
Table 4.1. Standards: Tanks
Question No.
Compliance Requirement
5. If you use Tank Level 2 controls, use one of the
following tanks:
Check one of the following:
Q A fixed-roof tank equipped with an internal
floating roof that meets the requirements of
§ 63.685(e).
Q A tank equipped with an external floating
roof that meets the requirements of
§ 63.685(f).
Q A tank vented through a closed-vent system
to a control device in accordance with the
requirements of § 63.685(g).
Q A pressure tank designed and operated in
accordance with § 63.685(h).
Q A tank located inside an enclosure that is
vented through a closed-vent system to an
enclosed combustion control device in
accordance with § 63.685(i).
Level 2 controls must
meet the requirements
of%63.685(d)
If you meet Tank Level
2 requirements, you are
done with this section.
6. If your tank is used for a waste stabilization process,
control air emissions by using Tank Level 2
controls.
Co to question 5
If not go to question 7
7. If your tank manages off-site material having a
maximum HAP vapor pressure > 76.6 kPa use one
of the following tanks:
Check one of the following:
Q A tank vented through a closed-vent system
to a control device.
Q A pressure tank.
Q A tank located inside an enclosure that is
vented through a closed-vent system to an
enclosed combustion control device.
Follow the
requirements of
§ 63.685(g)
§ 63.685(h)
§ 63.6850),
respectively.
4-14
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Chapter 5 - Oil-Water and Organic-Water Separator Air
Emission Control, Inspection and Monitoring Requirements
See table 5.1 for a
walk-through of the
standards for oil-water
and organic-water
separators.
What are the air emission control standards for oil-water and
organic-water separators?
• Use air emission controls per 40 CFR 63 subpart W.
Use any one of the following three alternatives
1. A separator equipped with an external floating roof.
2. A separator equipped with a fixed roof vented through a
closed-vent system to a control device.
3. A pressurized separator that operates as a closed system.
If I choose to use a separator equipped with an external floating
roof, how do I comply with the rule?
Meet the standards in § 63.1043 which are described as
follows:
Design
• The external floating roof must be designed to float on
the liquid surface during normal operations. It must also
be equipped with two continuous seals, one above the
other, between the wall of the separator and the roof
edge (The primary being the lower seal and the
secondary being the upper seal). The primary seal must
meet the following specifications:
1. It must be a liquid mounted seal or a metallic shoe
seal.
2. Total area of the gaps between the separator wall and
the primary seal must not exceed 67 cm2 per meter
of separator wall perimeter and the width of any
portion of these gaps are not to exceed 3.8 cm.
The secondary seal must meet the following
specifications:
1. It is to be mounted above the primary seal and cover
the annular space between the floating roof and the
wall of the separator.
5-1
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Chapter 5 - Oil-Water and Organic-Water Separator Requirements
If a separator ceases to
hold off-site material for
a period of one year or
more, subsequent
introduction of off-site
material into the tank
will be considered an
initial operation for the
purposes of
§§63.W43(b)(1)(i)
and (ii).
2. Total area of the gaps between the separator wall are
not to exceed 6.7 cm2 per meter of separator wall
perimeter, and the width of any portion of these gaps
is not to exceed 1.3 cm.
• Each opening in the floating roof is to be equipped with
a closure device designed so that when the closure
device is closed there are no visible cracks, holes, gaps
or other open spaces in the closure device or between
the perimeter of the opening and the closure device.
• A floating roof may be equipped with an emergency roof
drain for the removal of stormwater. These drains are to
be equipped with either a slotted membrane that covers
at least 90 percent of the area of the opening or a flexible
fabric sleeve seal.
Operation
• The floating roof must float on the liquid and any closure
device must be maintained in the closed position with
the exception of the following times:
1. To provide access to the separator for performing
routine inspection, maintenance, or other activity
required for normal operations.
2. To remove accumulated sludge from the bottom of
the separator.
/nspect/on/Mon/tor/ng
• Measure the gaps between the separator wall and the
primary seal as well as the gaps between the separator
wall and the secondary seal within 60 days after initial
operations of the separator following installation of the
floating roof; thereafter, measure the gaps at least once
every five years.
• Measure the total surface area of the gaps in the primary
seal and in the secondary seal individually. Measure at
one or more floating roof levels when the roof is floating
off the roof supports and measure around the entire
perimeter of the floating roof in each place where a 0.32
cm diameter uniform probe passes freely. Also measure
5-2
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Chapter 5 - Oil-Water and Organic-Water Separator Requirements
For Genera/
Recordkeeping
requirements, see
Chapter 14.
If you choose to use a
control device, be sure
to also see the
chapters on closed-
vent systems and
control devices
(Chapters 77 and 12).
the circumferential distance of each measured location.
Use probes of different sizes to accurately determine the
width of the gap and multiply the width by its respective
circumferential distance. Total gap area is calculated by
summing all of the gap surface areas for both the primary
seal and the secondary seal individually, and then
dividing by the nominal diameter of the separator.
Maintain a record of all the measurements performed
including the raw data obtained and the calculations
performed to determine the total gap surface area.
• If your floating roof's total gap surface area exceeds the
allowed surface area, you must maintain records that
describe the repairs which were made and the date upon
which these repairs were made or when the separator
was emptied.
• Make certain that you maintain all of the required
records for every inspection conducted which must
include the following.
1. Separator ID number (or other unique identifier)
2. The date of the inspection
3. For each defect, record: The location of the defect,
the date of detection, and corrective action taken to
repair the defect.
• You must also maintain documentation describing the
design of the floating roof installed on the separator
including the dimensions of the floating roof. Be certain
to also maintain any records specified in the General
Recordkeeping requirements of this document.
If I choose to use a fixed roof vented through a closed-vent system
to a control device, how do I comply with the rule?
Meet the standards in § 63.1044 which are described as
follows:
Design
• Use a fixed roof with a closure device which is designed
to form a continuous barrier over the entire surface area
of the liquid in the separator. The roof and the closure
5-3
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Chapter 5 - Oil-Water and Organic-Water Separator Requirements
devices are to be constructed of suitable materials so as
to minimize the exposure of the off-site material to the
atmosphere. Openings not vented to a control device
are to be equipped with a closure device.
• If the pressure in the vapor headspace is less than
atmospheric pressure then there must be no visible
cracks, holes, gaps, or other open spaces in the closure
device or between the perimeter of the cover opening
and the closure device.
• If the pressure in the vapor headspace is greater than
atmospheric pressure, then the closure device is to
operate with no detectable organic emissions.
Operation
• Closure devices are to be maintained in a closed position
and the vapor headspace underneath the fixed roof is to
be vented to a control device with the exception of the
following times:
1. Accessing the separator for performing routine
inspection, maintenance, or other activities needed
for normal operation.
2. Removing accumulated sludge or other residues
from the bottom of the separator.
3. Opening of a safety device to avoid an unsafe
condition.
Inspection/Mon itoring
• Check for defects that could result in air emissions by
visually inspecting the fixed roof and its closure devices.
Defects include: visible cracks, holes, or gaps in the roof
sections or between the roof and the separator wall;
broken, cracked, or otherwise damaged seals or gaskets
on closure devices; and broken or missing hatches,
access covers, caps, or other closure devices. Make
certain that you maintain all of the required records for
every inspection conducted which must include the
following.
1. Separator ID number (or other unique identifier)
-------
Chapter 5 - Oil-Water and Organic-Water Separator Requirements
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Perform the initial inspection following installation of the
fixed roof and thereafter at least once every calendar
year, unless you determine that the inspection would
expose a worker to dangerous, hazardous, or otherwise
unsafe conditions. If this is the case, you must maintain
documentation which designates the equipment
as"unsafe" and explains why the equipment is unsafe.
You must also implement a written plan to inspect the
equipment as frequently as is practicable.
• Any defect must be repaired within 45 calender days of
detection with the first effort at repair within 5 calender
days of detection. If you determine that a separator must
be emptied or taken out of service to perform the repair
and no alternative separator capacity is available, then
repair may be delayed until the next time the material
generating unit stops operation and must be completed
before the generating unit resumes operation. Under this
circumstance, you must record the reason for the delay
and the date the completion of the repair is expected.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
It I choose to use a pressurized separator, how do I comply with
the rule?
Meet the standards in § 63.1045 which are described as
follows:
For General
Recordkeeping
requirements, see
Chapter 14.
Design
The separator is to be designed so that it does not vent to
the atmosphere during operation of the separator at its
design capacity.
All closure devices are to be designed to operate with no
detectable organic emissions.
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Chapter 5 - Oil-Water and Organic-Water Separator Requirements
Operation
• The separator is to be operated as a closed system that
does not vent to the atmosphere except under the
following conditions:
1. Opening of a safety device to avoid an unsafe
condition.
2. Purging of the inerts from the separator so long as the
purge stream is routed to a closed-vent system and
control device (see Chapter 11 on closed-vent
systems and Chapter 12 on control devices for further
guidance).
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document
(see Chapter 14).
5-6
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Chapter 5 - Oil-Water and Organic-Water Separator Requirements
Table 5.1. Standards: Oil-Water and Organic-Water Separators
Question No.
Compliance Requirement
1. Control air emissions from oil-water and organic-
water separators using one of the following:
Check one of the following:
Q A floating roof.
Q A fixed-roof that is vented through a closed-
vent system to a control device (where a
floating roof is infeasible).
Q A pressurized separator that operates as a
closed system.
Each option must
comply with the
applicable provisions in
40 CFR 63
subpart W-National
Emissions Standards for
Oil-Water Separators
and Organic-Water
Separators.
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Chapter 6 - Surface Impoundment Air Emission Control,
Inspection, and Monitoring Requirements
See Table 6.1 fora
walk-through of the
standards for surface
impoundments.
What are the air emission control standards for surface
impoundments?
• Use air emission controls per 40 CFR 63 subpart QQ
Use a surface impoundment equipped with either of the
following two alternatives:
1. Floating Membrane Cover
2. A cover that is vented through a closed-vent system to a
control device
If I choose to use a floating membrane cover, how do I comply
with the rule?
Meet the standards in § 63.942 which are described as
follows:
Design
• Design the floating membrane cover so that it floats on
the liquid surface during normal operations forming a
continuous barrier over the entire surface area of the
liquid. There must be no visible cracks, holes, gaps, or
other open spaces between the cover section seams or
between the interface of the cover edge and its
foundation mountings.
• There are two types of materials that can be used for the
cover construction. They are:
1. A high density polyethylene (HOPE) with a thickness
of no less than 2.5 mm.
2. A material or composite of materials which have
organic permeability properties equivalent to
(HOPE), and will maintain its integrity for its intended
service life.
or
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Chapter 6 - Surface Impoundment Requirements
• All openings are to be equipped with a closure device.
The rule does allow for an emergency cover drain for the
removal of stormwater so long as it is equipped with
either a slotted membrane fabric cover which covers at
least 90 percent of the opening, or a flexible fabric sleeve
seal. Closure devices are to be made of materials so as
to minimize exposure of the regulated material to the
atmosphere.
Operation
• The floating membrane cover must float on the liquid,
and any closure device must be maintained in the closed
position with the exception of the following times:
1. Accessing the separator for performing routing
inspection, maintenance, or other activity required
for normal operations.
2. Removing accumulated sludge from the bottom of
the separator.
3. Opening of a safety device to avoid an unsafe
condition.
• Spring-loaded pressure-vacuum relief valves,
conservation valves, or any other similar type of pressure
relief device may vent to the atmosphere during normal
operations in order to maintain the vapor headspace
underneath the cover within the design cover
specifications. At all other times, these devices must be
maintained so as to operate with no detectable organic
emissions.
Inspection/Monitoring
• Check for defects that could result in air emissions by
visually inspecting the cover and its closure devices.
Defects include: visible cracks, holes, or gaps in the
cover section seams or between the interface of the
cover edge and its foundation mountings; broken,
cracked, or otherwise damaged seals or gaskets on
closure devices; and broken or missing hatches, access
covers, caps, or other closure devices. Make certain that
you maintain all of the required records for every
inspection conducted which must include the following:
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Chapter 6 - Surface Impoundment Requirements
1. Surface impoundment ID number (or other unique
identifier)
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
repair the defect.
• Perform the initial inspection following installation of the
membrane cover and thereafter at least once every
calendar year, unless you determine that the inspection
would expose a worker to dangerous, hazardous, or
otherwise unsafe conditions. If this is the case, you must
maintain documentation which designates the equipment
as "unsafe" and explains why the equipment is unsafe.
You must also implement a written plan to inspect the
equipment as frequently as is practicable.
• Any defect must be repaired within 45 calender days of
detection with the first effort at repair within 5 calender
days of detection. If you determine that a separator must
be emptied or taken out of service to perform the repair
and no alternative separator capacity is available, then
repair may be delayed until the next time the material
generating unit stops operation and must be completed
before the generating unit resumes operation. Under this
circumstance, you must record the reason for the delay
and the date the completion of the repair is expected.
• Be certain to also maintain any records required in the
General Recordkeeping requirements of this document.
If I choose to use a cover vented to a control device, how do I
comply with the rule?
Meet the standards in § 63.943 which are described as
follows:
Design
• Use a cover which is designed to form a continuous
barrier over the entire surface area of the liquid in the
separator. Openings not vented to a control device are to
be equipped with a closure device. The cover and the
closure devices are to be constructed of suitable
materials so as to minimize the exposure of the off-site
For General
Recordkeeping
requirements, see
Chapter 14.
If you choose to use a
control device, be sure
to a/so see the
chapters on closed-
vent systems and
control devices
(Chapters 11 and 12).
6-3
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Chapter 6 - Surface Impoundment Requirements
material to the atmosphere.
• If the pressure in the vapor headspace is less than
atmospheric pressure then there must be no visible
cracks, holes, gaps or other open spaces in the closure
device or between the perimeter of the cover opening
and the closure device.
• If the pressure in the vapor headspace is greater than
atmospheric pressure, then the closure device is to
operate with no detectable organic emissions.
Operation
• Closure devices are to be maintained in a closed position
and the vapor headspace underneath the cover is to be
vented to a control device with the exception of the
following times:
1. Accessing the separator for performing routine
inspection, maintenance, or other activities needed
for normal operation.
2. Removing accumulated sludge or other residues
from the bottom of the separator.
3. Opening of a safety device to avoid an unsafe
condition.
/nspect/on/Mon/tor/ng
• Check for defects that could result in air emissions by
visually inspecting the cover and its closure devices.
Defects include: visible cracks, holes, or gaps in the
cover section seams or between the interface of the
cover edge and its foundation mountings; broken,
cracked, or otherwise damaged seals or gaskets on
closure devices; and broken or missing hatches, access
covers, caps, or other closure devices. Make certain that
you maintain all of the required records for every
inspection conducted which must include the following.
1. Surface container ID number (or other unique
identifier)
2. The date of the inspection
3. For each defect record: The location of the defect, the
date of detection, and corrective action taken to
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Chapter 6 - Surface Impoundment Requirements
General
Recordkeeping
requirements can be
found in Chapter 14.
repair the defect.
• Perform the initial inspection following installation of the
cover and thereafter at least once every calendar year,
unless, you determine that the inspection would expose
a worker to dangerous, hazardous, or otherwise unsafe
conditions. If this is the case, you must maintain
documentation which designates the equipment as
"unsafe" and explains why the equipment is unsafe. You
must also implement a written plan to inspect the
equipment as frequently as is practicable.
• Any defect must be repaired within 45 calender days of
detection with the first effort at repair within 5 calender
days of detection. If you determine that a separator must
be emptied or taken out of service to perform the repair
and no alternative separator capacity is available, then
repair may be delayed until the next time the material
generating unit stops operation and must be completed
before the generating unit resumes operation. Under this
circumstance, you must record the reason for the delay
and the date the completion of the repair is expected.
• Be certain to also maintain any records specified in the
General Recordkeeping requirements of this document.
6-5
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Chapter 6 - Surface Impoundment Requirements
Table 6.1. Standards: Surface Impoundments
Question No.
Compliance Requirement
1. Control air emissions from each surface
impoundment by using one of the following
Check one of the following:
Q A floating membrane cover.
Q A cover that is vented through a closed-vent
system to a control device, which meets the
standards in § 63.693.
Each option must
comply with the
applicable provisions in
40 CFR 63
subpart QQ-National
Emissions Standards for
Surface Impoundments.
6-6
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Chapter 7 - Container Air Emission Control, Inspection, and
Monitoring Requirements
Light material service
means that a container is
used to manage material
where the vapor pressure of
one or more organic
constituents is greater than
.3 Kpa at 20 °C and the
total concentration of the
pure organic constituents
having such vapor pressure
is equal to or greater than
20 percent by weight of the
off-site material.
See Table 7.1 for a
walk-through of the
standards for
containers.
Container Level 1
control standards can
be found in § 63.922.
What are the air emission control, inspection, and monitoring
requirements for containers?
• Use the required control level (Level 1, 2, or 3) as
determined by container size, organic content of the
off-site material, and how the container is used.
• There are no controls required by this rule for containers
< 0.1 m3(=26gal)
• Use Level 1 controls per 40 CFR 63, subpart PP for
containers < 0.46 m3 (= 119 gal), and for
containers > 0.46 m3 not in "light material service."
• Use Level 2 controls per 40 CFR 63, subpart PP for
containers > 0.46 m3 in "light material service."
• Use Level 3 controls per 40 CFR 63, subpart PP for
containers > 0.1 m3 used in a waste stabilization
process.
• The rule does allow you to use more stringent air
emission controls. For example, if you are required to
use Level 1 controls you may instead control air
emissions by using Level 2 or Level 3 controls. If you are
required to use Level 2 controls, you may use Level 3
controls instead.
If I have a container using Level 1 controls, how do I comply with
the rule?
There are three types of containers that can be used to meet
Level 1 controls. They are as follows:
1. A container that meets the applicable U.S. Department of
Transportation regulations on packaging hazardous
material for transportation.
2. A container equipped with a cover and closure devices
forming a continuous barrier over the container.
3. An open-top container with an organic vapor-suppressing
barrier placed on or over the regulated material so that
7-1
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Chapter 7 - Container Requirements
no material is exposed to the atmosphere.
Design
• The container and its closure devices are to be made of
suitable materials so as to minimize exposure of the
material to the atmosphere.
Operation
• You must install all covers and closure devices for the
container and maintain each closure device in the closed
position any time material is being kept in the container.
• Covers and closure devices may be opened for the
following occasions:
1. Adding material. All closure devices and covers are
to be closed upon completion of the fill if the fill is a
continuous process. For batch process, covers and
closure devices are to be closed at the end of each
batch fill any time there is a 15 minute interval
between batches, the person performing the fill
leaves the immediate vicinity, or there is a shutdown
in the generating facility.
2. Removing material. Empty containers may be left
open to the atmosphere. If the container is not
completely emptied, and there will be a 15 minute
interval before any more material is removed, or the
person performing the removal leaves the vicinity,
then the cover and closure devices must be
maintained in the closed position.
3. Access. Access is allowed for routine maintenance.
4. Maintain Internal Pressure. Pressure may be
maintained in accordance with the container design
specifications by opening a spring-loaded pressure-
vacuum relief valve, conservation vent, or similar
type of pressure relief valve. At all other times these
valves or vents are to remain closed.
5. Safety. A safety device may be opened to avoid an
unsafe condition.
7-2
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Chapter 7 - Container Requirements
For General
Recordkeeping
requirements, see
Chapter 14.
Container Level 2
control standards can
be found in § 63.923.
Inspection/Monitoring
• Any time a container which is not emptied arrives at a
facility, you must visually inspect it within 24 hours of
receiving the container. Check for cracks, holes, gaps, or
other open spaces into the interior of the container when
the cover and closure devices are secured in the closed
position. This inspection must be completed on or
before the time the container is accepted at the facility.
• If you have an container at your facility which has
remained unopened for one year or more, then the
container, its cover, and its closure devices are to be
inspected initially and at least once every 12 months.
Check for cracks, holes, gaps, or other open spaces into
the interior of the container when the cover and closure
devices are secured in the closed position.
• The first attempt to repair any defect must be made
within 24 hours of detecting the defect and repair is to be
completed no later than 5 calendar days after detection.
If this time schedule cannot be met, then the container is
to be emptied and taken out of service.
• Be certain to maintain any records required in the
General Recordkeeping requirements of this document.
If I have a container using Level 2 controls, how do I comply with
the rule?
There are three types of containers that can be used to meet
the Level 2 controls. They are as follows:
1. A container that meets the applicable U.S. Department of
Transportation regulations on packaging hazardous
material for transportation.
2. A container that has been demonstrated to operate with
no detectable organic emissions.
3. A container that has been demonstrated to be vapor-tight
using Method 27.
Handling of Material
• Transfer of material into or out of a container must be
done in a manner so as to minimize exposure of the
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Chapter 7 - Container Requirements
material to the atmosphere.
Operation
• You must install all covers and closure devices for the
container and maintain each closure device in the closed
position any time material is being kept in the container.
• Covers and closure devices may be opened for the
following occasions.
1. Adding material. All closure devices and covers are
to be closed upon completion of the fill if the fill is a
continuous process. For batch process, covers and
closure devices are to be closed at the end of each
batch fill any time there is a 15 minute interval
between batches, the person performing the fill
leaves the immediate vicinity, or there is a shutdown
in the generating facility.
2. Removing material. Empty containers may be left
open to the atmosphere. If the container is not
completely emptied, and there will be a 15 minute
interval before any more material is removed, or the
person performing the removal leaves the vicinity,
then the cover and closure devices must be
maintained in the closed position.
3. Access. Access is allowed for routine maintenance.
4. Maintain Internal Pressure. Pressure may be
maintained in accordance with the container design
specifications by opening a spring-loaded pressure-
vacuum relief valve, conservation vent, or similar
type of pressure relief valve. At all other times these
valves or vents are to remain closed.
5. Safety. A safety device may be opened to avoid an
unsafe condition.
Inspection/Monitoring
• Any time a container which is not emptied arrives at a
facility, you must visually inspect it within 24 hours of
receiving the container. Check for cracks, holes, gaps, or
other open spaces into the interior of the container when
the cover and closure devices are secured in the closed
position. This inspection must be completed on or
before the time the container is accepted at the facility.
7-4
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Chapter 7 - Container Requirements
Container Level 3
control standards can
be found in § 63.924.
// you choose to use a
control device, be sure
to also see the
chapters on closed-
vent systems and
control devices
(Chapters 11 and 12).
• If you have a container at your facility which has
remained unopened for one year or more, then the
container, its cover and closure devices are to be
inspected initially and at least once every 12 months.
Check for cracks, holes, gaps, or other open spaces into
the interior of the container when the cover and closure
devices are secured in the closed position.
• The first attempt to repair any defect must be made
within 24 hours of detecting the defect and repair is to be
completed no later than five calendar days after
detection. If this time schedule cannot be met, then the
container is to be emptied and taken out of service.
• Be certain to maintain any records required in the
General Recordkeeping requirements of this document.
If I have a container using Level 3 controls, how do I comply with
the rule?
You have two options for meeting the Level 3 controls. They
are as follows:
1. A container that is vented directly through a closed-vent
system to a control device.
or
2. A container that is vented inside an enclose which is
exhausted through a closed-vent system to a control
device.
A container vented directly through a closed-vent svstem to a control
device
• See the section on closed-vent systems and the section
on control devices for the appropriate Design, Operating,
and Inspection and Monitoring requirements.
A container vented inside an enclosure through a closed-vent svstem
to a control device
Design
• The container is to be located inside an enclosure which
meets the criteria for a total permanent enclosure. The
7-5
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Chapter 7 - Container Requirements
For General
Recordkeeping
requirements see
Chapter 14.
enclosure may have permanent or temporary openings to
allow worker access; passage of material into or out of
the enclosure by conveyor, vehicles, or other mechanical
means; entry of permanent mechanical or electrical
equipment; or to direct airflow into the enclosure.
• The enclosure is to be vented through a closed-vent
system to a control device.
/nspect/on/Mon itoring
• See the section on closed-vent systems and the section
on control devices for the Inspection/Monitoring
requirements.
• Maintain records of the most recent set of calculations
and measurements to verify that your enclosure meets
the criteria specified in "Procedure T-Criteria for and
Verification of a Permanent or Temporary Total
Enclosure" under 40 CFR 52.741, Appendix B. Be
certain to also maintain any general records required
which are explained in the General Recordkeeping
section of this document.
7-6
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Chapter 7 - Container Requirements
Table 6.1. Standards: Containers
Question No.
Compliance Requirement
1. Does the container have a design capacity greater
than 0.1 m3?
Yes, go to question 2
No, STOP, these
standards do not apply
to the container.
2. Is the container used for a waste stabilization
process?
Yes, go to question 9
No, go to question 3
3. Does the container have a design capacity greater
than 0.1 m3 and less than or equal to 0.46 m3?
Yes, go to quest/on 4
No, go to question 5
4. Control air emissions in accordance with the
following requirements:
Q Control air emissions in accordance with
the standards for Container Level 1 controls.
Q Alternatively, you may choose to control air
emissions in accordance with Container
Level 2 or Container Level 3 standards.
Container Level 1, 2,
and 3 controls are
found in 40 CFR 63
subpart PP-National
Emission Standards for
Containers.
5. Does the container have a design capacity greater
than 0.46 m3?
Yes, go to question 6
No, go to question 2 (If
you've already
answered question 2,
then you are done with
this section)
6. Is the container in light-material service as defined
in § 63.681?
Yes, go to question 8
No, go to question 7
7. Control air emissions in accordance with the
following requirements:
Q Control air emissions in accordance with
the standards for Container Level 1 controls.
Q Alternatively, you may choose to control air
emissions in accordance with Container
Level 2 or Container Level 3 standards.
Container Level 1, 2,
and 3 controls are
found in 40 CFR 63
subpart PP-National
Emission Standards for
Containers.
7-7
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Chapter 7 - Container Requirements
Table 6.1. Standards: Containers
Question No.
Compliance Requirement
8. If you answered "yes" to question 5 and question 6
then control air emissions in accordance with the
following requirements:
Q Control air emissions in accordance with
the standards for Container Level 2 controls.
Q Alternatively, you may choose to control air
emissions in accordance with Container
Level 3 standards.
Container Level 2 and 3
controls are found in
40 CFR 63 subpart
PP-National Emission
Standards for
Containers.
If the container has a design capacity greater than
0.1 m3 and is used for treatment of off-site material
by a waste stabilization process, control air
emissions in accordance with the standards for
Container Level 3 controls.
Container Level 3
controls are found in
40 CFR 63 subpart
PP-National Emission
Standards for
Containers.
7-8
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Chapter 8 - Transfer System Air Emission Control,
Inspection, and Monitoring Requirements
See Table 8.1 for a
walk-through of the
standards for transfer
systems.
What are the air emission control, inspection, and monitoring
requirements for transfer systems?
The requirements depend on the type of transfer system you
use. If...
...you use an individual drain system - use air emission
controls per 40 CFR 63, subpart RR.
...you use any other type of transfer system - use air
emission controls per § 63.689(c).
If I use an individual drain system subject to subpart RR, how do I
comply with the rule?
To comply with subpart RR you must use one or a
combination of the following to control air emissions from your
individual drain system:
1. Covers, water seals, and other air emission control
equipment. The standards for these items are discussed
later in this chapter.
2. Hard-piping.
3. Venting of the individual drain system through a closed-
vent system to a control device. The internal pressure in
the vapor headspace is to be kept below atmospheric
pressure when the control device is operating.
Design
Your individual drain system must be designed so that it
keeps the organic vapors, which come from the regulated material,
from entering into any other individual drain system that is not
controlled for air emissions in accordance with subparts RR and DD.
There are also several specific standards for each part of the drain
system. Standards exist for the following:
1. Drains
2. Junction Boxes
3. Sewer Lines
8-1
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Chapter 8 - Transfer System Requirements
If you choose to use a
control device, be sure
to also see the
chapters on closed-
vent systems and
control devices
(Chapters 77 and 12).
Drains
or
There are two options in controlling air emissions from
drains:
1. Use a water seal which either has the outlet to the
pipe discharging the regulated material extending
below the liquid surface of the water seal. OR Install
a flexible shield or other device which restricts wind
motion across the open space between the outlet of
the pipe discharging the regulated material and the
drain.
Use a closure device which is designed so that it has
no visible cracks, holes, gaps, or other open spaces
between the perimeter of the drain opening and the
closure device when it is secured in the closed
position.
Junction Boxes
• The junction box is to be equipped with a closure
device. The closure device must have no visible cracks,
holes, gaps, or other open spaces neither in the closure
device nor between the perimeter of the junction box
opening and the closure device when the closure device
is secured in the closed position.
• If a junction box is vented, it must be vented through a
closed-vent system to a control device. A junction box
may vent to the atmosphere if all of the following
conditions are met:
1. The junction box is filled and emptied by gravity flow
(no pump) or is operated with no more than slight
fluctuations in the liquid level.
2. The vent pipe installed on the junction box is at least
90 centimeters in length and no greater than 10.2 cm
in diameter.
3. Water seals are installed at the liquid entrance(s) or
exit from the junction box. (You may need to
demonstrate, upon request from EPA, that the
junction box water seal is properly designed and
restricts ventilation).
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Chapter 8 - Transfer System Requirements
Sewage Line
• Each sewer line is not to open to the atmosphere, and
must be covered or closed so that there are no visible
cracks, holes, gaps, or other open spaces in the sewer
line joints, seals, or other emission interfaces.
Operation
• Each closure device is to be maintained in the closed
position at any time there is regulated material in the
system. (Closure devices may be opened to facilitate
sampling, removal of material, equipment inspection,
maintenance, or repair.)
• The liquid in each water seal is to be maintained at the
appropriate level (see "Drains" section on page 8-2 for
the appropriate liquid level for water seals).
• If you are venting to a control device, you must also
comply with the standards for closed-vent systems and
control devices in subpart DD. (See Chapter 11 on
closed-vent systems and Chapter 12 on control devices
for guidance on these standards).
Inspection/Monitoring
• Inspect all of the following initially and thereafter at least
once every year.
1. Drain. If a water seal is used, inspect it to ensure that
appropriate liquid levels are being maintained. If a
closure device is being used, visually inspect the
drain to ensure that there are no defects.
2. Junction Box. Visually inspect each junction box to
ensure that the closure devices are in place and that
there are no defects.
3. Sewer Line. Visually inspect the unburied portion of
the sewer line to verify that all closure devices are in
place and that there are no defects.
• The first attempt at repairing any defect must be made no
later than five calendar days after detection. Repairs
must be completed no later than 15 calendar days after
detection. If you determine that the repair of any defect
8-3
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Chapter 8 - Transfer System Requirements
would require the emptying or temporary removal of
service of the individual drain system you may delay
repair until the next time the process unit or unit that is
generating the regulated material stops operation. The
repairs must be completed, however, before the process
unit resumes operation.
If I use any other type of transfer system subject to § 63.689(c),
how do I comply with the rule?
For any transfer system other than an individual drain system
you have three options to control air emissions. They are:
1. A transfer system that uses covers
2. A transfer system that consist of continuous hard piping
3. A transfer system that is enclosed and vented through a
closed-vent system to a control device
If I choose to use a transfer system using covers, how do I comply
with the rule?
Meet the standards in § 63.689(d) which are described as
follows:
Design
• The cover and its closure devices must form a
continuous barrier over the off-site material as it is
conveyed by the transfer system. The cover and its
closure devices must be made of suitable material so as
to minimize exposure of the off-site material to the
atmosphere. Inlet and Outlet openings are to be of a
minimum size.
• There must be no visible cracks, holes, gaps, or other
open spaces between the cover section joints or between
the interface of the cover edge and its mounting.
• All opening (with the exception of the inlet and outlet
openings) must be covered with closure devices. There
must be no visible cracks, holes, gaps, or other open
spaces between the perimeter of the opening and the
closure devices.
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Chapter 8 - Transfer System Requirements
Operation
• Each closure device must be kept in the closed position
at any time off-site material is in the transfer system.
Closure devices may, however, be opened when off-site
material is in the system under the following
circumstances:
1. Routine inspection, maintenance, repair, or other
activities needed for normal operation.
2. A safety device may be opened in order to avoid an
unsafe condition.
Inspection/Monitoring
• Check for defects, which could result in air emissions, by
visually inspecting the cover and its closure devices.
Defects include visible cracks, holes, or gaps in the cover
sections or between the cover and its mounting; broken
cracked, or otherwise damaged seals or gaskets on
closure devices; and broken or missing hatches, access
covers, caps, or other closure devices.
• Perform an initial inspection following installation of the
cover; thereafter, inspections must be performed at least
once every calendar year unless you determine that the
inspection would expose a worker to dangerous,
hazardous, or otherwise unsafe conditions. If this is the
case, you must maintain documentation which
designates the equipment as "unsafe" and explains why
the equipment is unsafe. You must also implement a
written plan to inspect the equipment as frequently as is
practicable.
• The first attempt at repairing any defect must be made no
later than five calendar days after detection. Repairs
must be completed no later than 45 calendar days after
detection. If you determine that the repair of any defect
would require the emptying or temporary removal of
service of the transfer system you may delay repair until
the next time the process unit or unit that is generating
the regulated material stops operation. The repairs must
be completed, however, before the process unit resumes
operation.
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Chapter 8 - Transfer System Requirements
General
Recordkeeping
requirements can be
found in Chapter 14.
*Be certain to maintain a record of any defect, including the
date detected, description of the defect, and the date of
repair.
If I choose to use hard piping, how do I comply with the rule?
Meet the standards in § 63.689(c)(2) which are described as
follows:
Design/Operation/Inspection/Monitoring
« All joints or seams between the pipe sections are to be
permanently or semi-permanently sealed.
• Be certain to also maintain any records required by the
General Recordkeeping requirements.
If I choose to use a transfer system that is enclosed and vented
through a closed-vent system to a control device, how do I comply
with the rule?
Design/Operation/Inspection/Monitoring
• Design the transfer system so that the internal pressure in
the vapor headspace in the enclosure is maintained at a
level less than atmospheric pressure when the control
device is operating.
• Be certain that you meet the requirements for closed-vent
systems and control devices including design, operation,
inspection/monitoring, recordkeeping, and reporting.
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Chapter 8 - Transfer System Requirements
Table 8.1. Standards: Transfer Systems
Question No.
Compliance Requirement
1. Is the transfer system an individual drain system?
Yes, go to quest/on 2
No, go to question 3
2. Control air emissions in accordance with 40 CFR
63 subpart RR-National Emission Standards for
Individual Drain Systems.
// you meet these
requirements, you are
done with this section.
3. Use one of the following transfer systems:
Check one of the following:
Q A transfer system that uses covers in
accordance with § 63.689(d).
Q A transfer system that consists of continuous
hard-piping, will all joints or seams between
the pipe sections being permanently or
semi-permanently sealed.
Q A transfer system that is enclosed and
vented through a closed-vent system to a
control device. The transfer system must be
operated so that the internal pressure in the
vapor headspace in the enclosure is
maintained at a level less than atmospheric
pressure when the control device is
operating, and the closed-vent system and
control device meet the requirements of
§ 63.693.
If the transfer system
uses covers then go to
question 4. If not, then
you are done with this
section.
4. If a transfer system uses covers, then you must meet
the following requirements:
Check all of the following:
G The cover and its closure devices must form
a continuous barrier over the entire surface
area of the off-site material as it is conveyed
by the transfer system.
There may be openings
in the inlet/outlet so
long as they are of a
minimal size for
practical operation.
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Chapter 8 - Transfer System Requirements
Table 8.1. Standards: Transfer Systems
Question No.
Compliance Requirement
4. (continued) G
There must be no cracks, holes, gaps or
other open spaces between cover section
joints or between the interface of the cover
edge and its mounting.
There must be no visible cracks, holes,
gaps, or other open spaces when the
closure device is secured in the closed
position.
The cover and its closure devices must be
made of material that will minimize
exposure of the off-site material to the
atmosphere.
Whenever an off-site material is in the
transfer system, the cover shall be installed
with the closure device secure in the closed
position.
Factors to consider
when selecting material
include: organic vapor
permeability; the effect
of contact with vapors;
exposure to wind,
moisture, and sunlight;
and the operating
systems on which the
cover is installed.
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Chapter 9 - Process Vent Air Emission Control, Inspection,
and Monitoring Requirements
What are the air emission control, inspection, and monitoring
requirements for process vents?
• Vent through a closed-vent system to >95% control
device.
Alternatively .....
You can determine, before placing the material in the
associated with the process vent, that
process equipment associated with the process vent, that
the average VOHAP concentration of the off-site material
the average VOHAP concentration of the ott-site materi;
is less than 500 parts per million by weight at the point
of delivery.
For process vent requirements see Table 9.1.
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Table 9.1
Off-Site Waste and Recovery Operations NESHAP
Compliance Options: Process Vents
If a process vent is part of an affected source, two primary regulatory
options exist. The following provides a condensed listing of the
compliance options and requirements that are available.
Meet the requirements of one
of the following.
Option 1
Option 2
Follow the standards in § 63.690
Route the vent stream from each
process vent through a closed-vent
system to a control device1 that meets
the standards of § 63.693.
Determine before placing material in
the process equipment associated
with the process vent that the average
VOHAP concentration2 of the off-site
material < 500 ppmw at the point of
delivery.
1. A primary condenser is not considered a control device;
however, a secondary condenser or other organic
recovery device that is operated downstream of the
primary condenser is considered a control device.
2. Perform the initial determination of the average VOHAP
concentration as specified in § 63.694(b). Thereafter
review and update this determination at least once every
calendar year.
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Chapter 10 - Equipment Leak Air Emission Control,
Inspection, and Monitoring Requirements
What are the air emission control, inspection, and monitoring
requirements for equipment leaks?
• These requirements apply to leaks from equipment
components (e.g., pumps and valves) that contain or
contact "off-site material" having an organic HAP
concentration > 10%.
• You must implement a leak detection and repair (LDAR)
program and meet the applicable equipment standards in
accordance with either:
- Fugitive Emission Sources NESHAP under 40 CFR 61
subpart V
or
- Hazardous Organic NESHAP (HON) under 40 CFR
63 subpart H
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Chapter 11 - Closed-Vent System Air Emission Control,
Inspection, and Monitoring Requirements
What are the air emission control, inspection, and monitoring
requirements for closed-vent systems?
There are two types of closed-vent systems you can use to
convey a vent stream to a control device. They are:
1. A closed-vent system designed to operate with no
detectable organic emissions
2. A closed-vent system designed to operate at a pressure
below atmospheric pressure
If I use a closed-vent system designed to operate with no
detectable organic emissions, how do I comply with the rule?
Meet the standards in § 63.683(c)(1 )(i) which are described
as follows:
Inspection/Monitoring
• At initial startup, monitor the closed-vent system
components and connections by using the procedures in
§ 63.694(k) (method 10 in Chapter 13 of this document)
to demonstrate that the closed-vent system operates with
no detectable organic emissions.
• After initial startup, visually inspect the closed-vent
system joints, seams, or other connections that are
permanently or semi-permanently sealed at least once a
year to check for defects that could result in air
emissions. Use the procedures specified in § 63.694(k)
(method 10 in Chapter 13 of this document) to
demonstrate that the system operated with no detectable
organic emission following any time a component is
repaired or replaced or a connection is unsealed.
• All other closed-vent system components or connections
other than those specified in the previous paragraph are
to be monitored at least once per year using the
procedures specified in § 63.694(k) (method 10 in
Chapter 13 of this document) to show that components
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Chapter 11 - Closed-Vent System Requirements
or connections operate with no detectable organic
emissions.
• Make the first attempt to repair any defect detected no
later than 5 calendar days after detection, and the repair
must be completed no later than 45 days after detection.
If repair is either infeasible without shutting down the
process or would result in more emissions than by
delaying the repair until the process could be stopped,
then repair may be delayed beyond the 45 day limit so
long as repair is completed before the process resumes
operation.
• Be certain to also maintain any records required in the
Recordkeeping section of the rule. Guidance for these
requirements is available in Chapter 14.
If I choose to use a closed-vent systems designed to operate at a
pressure at or below atmospheric pressure, how do I comply with
the rule?
Meet the standards in § 63.683(c)(1)(ii) which are described
as follows:
Inspection/Monitoring
• Check for defects in the closed-vent system that could
result in air emissions by visually inspecting the system.
Defects include: visible cracks, holes, or gaps in the
ductwork or piping; loose connections; or broken or
missing caps on other closure devices.
• Perform an initial inspection following installation of the
closed-vent system; thereafter, inspections must be
performed at least once every calendar year unless you
determine that the inspection would expose a worker to
dangerous, hazardous, or otherwise unsafe conditions. If
this is the case, you must maintain documentation which
designates the equipment as "unsafe" and explains why
the equipment is unsafe. You must also implement a
written plan to inspect the equipment as frequently as is
practicable.
• Make the first attempt to repair any defect detected no
later than 5 calendar days after detection, and the repair
If you use a closed-
vent system designed
to operate at or below
atmospheric pressure,
you must install a
pressure gauge to
monitor the pressure
in the closed-vent
system. You use this
gauge to verify that
the pressure in the
system is at or below
atmospheric pressure.
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Chapter 11 - Closed-Vent System Requirements
must be completed no later than 45 days after detection.
If repair is either infeasible without shutting down the
process or would result in more emissions than by
delaying the repair until the process could be stopped,
then repair may be delayed beyond the 45-day limit
when the process can be stopped so long as repair is
completed before the process resumes operation.
• Be certain to also maintain any records required in the
Recordkeeping section of the rule. Guidance for these
requirements is available in Chapter 14.
If I use a bypass device, what requirements must I meet?
If a closed-vent system includes a bypass device that could
be used to divert a vent stream to the atmosphere at a point
upstream of the control device inlet, then it must be equipped with
either a flow indicator, or a seal or locking device. Low leg drains,
high point bleeds, analyzer vents, open-ended valves or lines, or
pressure relief valves needed for safety reasons are exempt from this
requirement.
Flow Indicator
• The flow indicator is to be installed at the entrance to the
bypass line. It must indicate a reading at least once every
15 minutes. You must maintain records of the following:
1. Hourly records of whether the flow indicator was
operating, and whether flow was detected at any
time during that hour.
2. Records of all periods when the flow is detected or
the flow indicator is not operating.
Seal or Locking Device
• The bypass line valve must be secured in the non-
diverting position with a car-seal or lock-and-key type
configuration. The mechanism which controls the
bypass device must not be able to be moved to the
"diverting* position without either breaking the seal or
removing the lock. You must inspect the seal or closure
mechanism at least once every month to ensure that the
bypass line valve is maintained in the non-diverting
position.
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Chapter 12 - Control Device Air Emission Control,
Inspection, and Monitoring Requirements
What are the air emission control, inspection, and monitoring
requirements for control devices?
There are five options for controlling air emissions from off-
site material operations. They are:
1. Carbon Adsorption Systems
2. Condensers
3. Vapor Incinerators
4. Boilers and Process Heaters
5. Flares
The requirements for these five control device types will be
explained in this chapter.
What are the requirements for a carbon adsorption system?
Requ/rements
• Recover 95 percent or more of the Total Organic
Compounds (TOO contained in the vent stream entering
the system.
or
• Recover 95 percent or more, on a weight basis, of the
total HAP listed in Table 1 of subpart DD.
Compliance Demonstration
• You may choose to conduct a performance test to
demonstrate compliance. If you do, follow the
requirements of § 63.694(1) (method 11 of Chapter 13).
or
You may choose to perform a design analysis to
demonstrate compliance. If you do, follow the
requirements of § 63.693(d)(2)(ii)(A) or (B).
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Chapter 12 - Control Device Requirements
Monitoring
• You must use one of the following types of monitoring
systems for a carbon adsorption system:
1. For regenerative type systems you can use a
continuous parameter monitoring system to measure
and record stream mass flow or volumetric flow
during each carbon bed regeneration cycle. It must
have an accuracy of ± 10 percent along with a
continuous parameter monitoring system to measure
and record average carbon bed temperature during
the carbon bed steaming cycle and the actual carbon
bed temperature after regeneration within 15 minutes
of completing the cooling cycle. It must have an
accuracy of ±5 degrees Celsius or ± 1 percent of the
temperature being measured.
2. A continuous monitoring system (CMS) to measure
and record the daily average concentration level of
organic compounds in the exhaust gas stream from
the control device. It must have an accuracy of
± 1 percent.
3. A CMS that measures other alternative operating
parameters upon approval from the administrator.
How do I manage the carbon from my carbon adsorption system?
• Replace Carbon on a regular, predetermined time
schedule that is not longer than the carbon service life.
• Spent carbon must be either regenerated, reactivated, or
burned in one of the following units:
1. Thermal treatment unit (need permit under 40 CFR
part 270 implementing 40 CFR part 264 subpart X).
2. Regenerated or reactivated in a thermal treatment
unit equipped with and operating with air emission
controls in accordance with subpart DD.
3. Regenerated or reactivated in a thermal treatment
unit equipped with and operating with air emission
controls in accordance with another subpart in
40 CFR part 61 or part 63.
4. Burned in a hazardous waste incinerator (need
permit under 40 CFR part 270 implementing 40 CFR
part 264 subpart O).
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Chapter 72 - Control Device Requirements
5. Burned in a hazardous waste incinerator which you
design and operate in accordance with the interim
status requirements of 40 CFR part 265 subpart O.
6. Burned in a boiler or industrial furnace (need permit
under 40 CFR part 270 implementing 40 CFR part
266 subpart H).
7. Burned in a boiler or industrial furnace which you
design and operate in accordance with 40 CFR part
266 subpart H.
What are the requirements for a condenser?
Requirements
• Recover 95 percent or more of the Total Organic
Compounds (TOO contained in the vent stream entering
the system.
or
• Recover 95 percent or more, on a weight basis, of the
total HAP listed in Table 1 of subpart DD.
Compliance Demonstration
• You may choose to conduct a performance test to
demonstrate compliance. If you do, follow the
requirements of § 63.694(1) (method 11 of Chapter 13).
or
• You may choose to perform a design analysis to
demonstrate compliance. If you do, follow the
requirements of § 63.693(e)(2)(ii).
Monitoring
• You must choose one of the following types of
monitoring systems for a condenser control device:
1. A continuous parameter monitoring system to
measure and record the daily average temperature of
the exhaust gases from the control device. Accuracy
must be ± 1 percent of the temperature being
measured or + 5 degrees Celsius.
2. A continuous monitoring system (CMS) to measure
and record the daily average concentration level of
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Chapter 12 - Control Device Requirements
organic compounds in the exhaust gas stream from
the control device. It must have an accuracy of ± 1
percent.
3. A CMS that measures other alternative operating
parameters upon approval from the administrator.
What are the requirements for a vapor incinerator?
Requ/'rements
• Destroy the total organic compounds (TOO by 95
percent or more, on a weight basis; or achieve a total
incinerator outlet concentration, for the TOC, of less than
20 parts per million by volume (ppmv) on a dry basis
corrected to 3 percent oxygen.
or
• Destroy the HAP listed in Table 1 of subpart DD by 95
percent or more, on a weight basis; or achieve a total
incinerator outlet concentration, for the HAP listed in
Table 1, of 20 parts per million by volume (ppmv) on a
dry basis corrected to 3 percent oxygen.
or
• Maintain the conditions in the vapor incinerator
combustion chamber at a residence time of 0.5 seconds
or longer at a temperature of 760° C or higher.
Compliance Demonstration
• You may choose to conduct a performance test to
demonstrate compliance. If you do, follow the
requirements of § 63.694(1) (method 11 of Chapter 13).
or
• You may choose to perform a design analysis to
demonstrate compliance. If you do, follow the
requirements of § 63.693(f)(2)(ii)(A) or (B).
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Chapter 72 - Control Device Requirements
Monitoring
• You must choose one of the following types of
monitoring systems for a vapor incinerator control
device:
1. For a thermal vapor incinerator, you may use a
continuous parameter monitoring system to measure
and record the daily average temperature of the
exhaust gases from the control device. Accuracy
must be + 1 percent of the temperature being
measured expressed in degrees Celsius of ±0.5° C.
2. For a catalytic vapor incinerator, you may use a
temperature monitoring device capable of monitoring
temperature at two locations equipped with a
continuous recorder. The first sensor must be placed
as near to the catalyst bed inlet as is feasible. The
second sensor must be placed as near to the catalyst
bed outlet as is feasible.
3. A continuous monitoring system (CMS) to measure
and record the daily average concentration level of
organic compounds in the exhaust gas stream from
the control device. It must have an accuracy of ± 1
percent.
4. A CMS that measures other alternative operating
parameters upon approval from the administrator.
What are the requirements for boilers and process heaters?
Requirements
• Destroy the total organic compounds (TOO by
95 percent or more, on a weight basis; or achieve a total
incinerator outlet concentration, for the TOC, of less than
20 parts per million by volume (ppmv) on a dry basis
corrected to 3 percent oxygen.
or
• Destroy the HAP listed in Table 1 of subpart DD by
95 percent or more, on a weight basis; or achieve a total
incinerator outlet concentration, for the HAP listed in
Table 1, of 20 parts per million by volume (ppmv) on a
dry basis corrected to 3 percent oxygen.
or
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Chapter 72 - Control Device Requirements
• Maintain the conditions in the boiler or process heater
combustion chamber at a residence time of 0.5 seconds
or longer at a temperature of 760° C or higher.
or
• Introduce the vent stream with the fuel that provides the
predominate heat input for the boiler or process heater.
(Be certain to maintain the records which demonstrate
this).
or
• Introduce the vent stream to a boiler or process heater for
which you have a permit under 40 CFR 270 and
complies with the requirements of 40 CFR 266 subpart
H; or has certified compliance with the interim status
requirements of 40 CFR part 266 subpart H. (Be certain
to maintain the records that demonstrate this).
Compliance Demonstration
• You may choose to conduct a performance test to
demonstrate compliance. If you do, follow the
requirements of § 63.694(1) (method 11 of Chapter 13).
or
• You may choose to perform a design analysis to
demonstrate compliance. If you do, follow the
requirements of § 63.693(g)(2)(i)(B).
Monitoring
• You must choose one of the following types of
monitoring systems for a boiler or process heater control
device:
1. A continuous parameter monitoring system to
measure and record the daily average combustion
zone temperature. Accuracy must be + 1 percent of
the temperature being measured expressed in
degrees Celsius of ±0.5 degrees C.
2. A continuous monitoring system (CMS) to measure
and record the daily average concentration level of
organic compounds in the exhaust gas stream from
the control device. It must have an accuracy of
± 1 percent.
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Chapter 12 - Control Device Requirements
3. A CMS that measures other alternative operating
parameters upon approval from the administrator.
What are the requirements for flare control devices?
Requ/rements
• The flare must be designed and operated in accordance
with 40 CFR 63. 1Kb).
Compliance Demonstration
• Perform all of the following:
1 . Visible emission test (as specified in 40 CFR
63. 1Kb) (4)).
2. Determine the net heating value of the gas being
combusted in the flare (as specified in 40 CFR
3. Determine the flare exit velocity (as specified in
40CFR63.11(b)(7)or(8).
• A previous compliance demonstration may be used if the
following conditions are met:
1 . You used the same procedures as specified
previously.
2. No flare operating parameter or process changes
have occurred since completion of the compliance
demonstration which could affect the results.
Monitoring
• You must monitor the operation using a heat sensing
monitoring device that continuously detects the presence
of a pilot flame. You must record for each 1-hour period
whether the monitor was continuously operating and
whether a pilot flame was continuously present during
each hour.
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Chapter 12 - Control Device Requirements
Are there any other general requirements that I must meet for my
control device?
Inspection and monitoring requirements
• Use a continuous parameter monitoring system to
measure the operating parameter or parameters specified
for the control device in § 63.693(d) through § 63.693(g)
as applicable to the type and design of the control
device. The monitoring system must measure and
continuously record either an instantaneous value at least
once every 15 minutes. Calculate block average values
for each 1-hour or shorter period from all measured data
values recorded during each period. If the values are
measured more frequently than once per minute, a single
value for each minute may be used to calculate the
hourly block average instead of all measured values.
• The monitoring system must be installed, calibrated,
operated, and maintained in accordance with the
manufacturer's specifications or other written procedures
that provide reasonable assurance that the monitoring
equipment is operating properly.
• Calculate the daily average value for each monitored
operating parameter using data recorded by the
monitoring system. If operation of the control device is
continuous, the operating day is a 24-hour period. If the
control device operation is not continuous, the operating
day is the total number of hours of control device
operation per 24-hour period.
• Establish a minimum (or a maximum if applicable)
operating parameter value for each monitored operating
parameter to define the range of conditions at which the
control device must be operated to continuously achieve
the applicable performance requirements specified in
§ 63.693(b)(2). Each minimum or maximum operating
parameter value must be established using one of the
following:
1. Performance test: establish the minimum or
maximum operating parameter value based on values
measured during the performance test and
supplemented, as necessary, by the control device
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Chapter 12 - Control Device Requirements
design specifications, manufacturer
recommendations, or other applicable information.
2. Design Analysis: establish the minimum or maximum
operating parameter value based on the control
device manufacturer recommendations or other
applicable information.
How do I know if I have had an excursion?
• An excursion for a given control device is determined to
have occurred when the monitoring data or lack thereof
results in any one of the criteria specified below being
met. When multiple operating parameters are monitored
for the same control device and during the same
operating day more than one of these operating
parameters meets an excursion criterion specified in
§ 63.695(e)(4)(i) through § 63.695(e)(4)(iii), then a single
excursion is determined to have occurred for the control
device for that operating day. Any of the following is
considered an excursion:
1. The daily average value of a monitored operating
parameter is less than the minimum operating
parameter limit (or, if applicable, greater than the
maximum operating parameter limit) established for
the operating parameter in accordance with the
requirements of § 63.695(e)(3) of this section.
2. The period of control device operation is 4 hours or
greater in an operating day and the monitoring data
are insufficient to constitute a valid hour of data for at
least 75 percent of the operating hours. Monitoring
data are insufficient to constitute a valid hour of data
if measured values are unavailable for any of the
15-minute periods within the hour.
3. The period of control device operation is less than
four hours in an operating day and more than one of
the hours during the period does not constitute a
valid hour of data due to insufficient monitoring data.
Monitoring data are insufficient to constitute a valid
hour of data if measured values are unavailable for
any of the 15-minute periods within the hour.
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Chapter 12 - Control Device Requirements
• For each excursion, except as provided for in
§ 63.695(e)(6), it will be deemed that you have failed to
apply control in a manner that achieves the required
operating parameter limits. Failure to achieve the
required operating parameter limits is a violation of this
standard.
• An excursion is not a violation of this standard under any
one of the conditions specified in § 63.695(e)(6)(i) and
§ 63.695(e)(6)(ii) when the excursion occurs during any
one of the following periods:
1. A period of startup, shutdown, or malfunction when
the affected facility is operated during such period in
accordance with the facility's startup, shutdown, and
malfunction plan;
or
2. Periods of non-operation of the unit or the process
that is vented to the control device (resulting in
cessation of HAP emissions, to which the monitoring
applies).
• For each control device, one excused excursion is
allowed per semiannual period for any reason. The
initial semiannual period is the 6-month reporting period
addressed by the first semiannual report submitted by the
owner or operator in accordance with § 63.697(b)(4).
Nothing in § 63.695(e)(1) through § 63.695(e)(6) shall be
construed to allow or excuse a monitoring parameter
excursion caused by any activity that violates other
applicable provisions of 40 CFR Part 63 Subpart DD.
What if inspection of my equipment is dangerous?
• Subsequent inspection and monitoring of equipment
may be performed at intervals longer than one year if it is
determined that performing the required inspection or
monitoring procedures would expose a worker to
dangerous, hazardous, or otherwise unsafe condition and
the facility, and complies with the requirements specified
in § 63.695(f)(1) and § 63.695(f)(2) as follows:
1. You must prepare and maintain at the facility written
documentation identifying the specific air pollution
control equipment designated as "unsafe to
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Chapter 12 - Control Device Requirements
inspect and monitor." The documentation must
include, for each piece of air pollution control
equipment designated as such, a written explanation
of the reasons why the equipment is unsafe to inspect
or monitor using the applicable procedures under
this section.
You must also develop and implement a written plan
and schedule to inspect and monitor the air pollution
control equipment using the applicable procedures
specified in this section during times when a worker
can safely access the air pollution control equipment.
The required inspections and monitoring must be
performed as frequently as practicable but do not
need to be performed more frequently than the
periodic schedule that would be otherwise
applicable to the air pollution control equipment
under the provisions of this section. A copy of the
written plan and schedule must be maintained at the
facility.
12-11
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Chapter 13 - Test Methods and Procedures
Does the rule require me to use any test methods?
There are several test methods and equations that are applicable to
this rule. They are as follows:
1. Determining the average VOHAP concentration for off-site
material streams at the point-of-delivery [§ 63.694(b)].
2. Determining the average VOHAP concentration for treated
off-site material streams at the point-of-treatment
[§ 63.694(c)].
3. Determining the treatment process VOHAP concentration
limit (CR) [§ 63.694(d)].
4. Determining the treatment process required HAP mass
removal rate (RMR) [§ 63.694(e)].
5. Determining the treatment process actual HAP mass removal
rate (MR) [§ 63.694(f)].
6. Determining the treatment process required HAP reduction
efficiency (R) [§ 63.694(g)].
7. Determining the treatment process required HAP
biodegradation efficiency (Rb,0) [§ 63.694(h)].
8. Determining the treatment process required actual HAP mass
removal rate (MRblo) [§ 63.694(i)].
9. Determining the maximum organic HAP vapor pressure of
the off-site material in tanks [§ 63.694(j)].
10. Determining no detectable organic emissions [§ 63.694(k)].
11. Determining closed-vent system and control device
performance compliance [§ 63.694(1)].
12. Determining the process vent stream flow rate and total HAP
concentration [§ 63.694(m)].
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Chapter 13 - Test Methods and Procedures
1. Determining the average VOHAP concentration for an off-
site material stream at the point-of-delivery.
1a. Determine the average VOHAP concentration for off-site
material streams at the point-of-delivery using either
direct measurement as specified in 1 b or by knowledge
as specified in 1c.
1 b. Direct measurement
To determine the
average VOHAP
concentration of an
off-site material stream
at the point-of-delivery
follow the procedures
outlined in
§ 63.694(b)
For Methods 624 and
625, If the method is
used to analyze one or
more compounds that
are not on the
method's published
list of approved
compounds, the
Alternative Jest
Procedure specified in
40CFR 136.4 and
736.5 must be
followed.
1. Sampling. Collect samples in a manner such that
volatilization of material is minimized and the
sample adequately representative for a selected
method.
2. Record the averaging period (which may not exceed
one year). Handle all samples (of which at least four
shall be collected) in accordance with written
procedures which describe how the collecting
procedures comply with 1b(1) and maintain written
procedures on-site in the facility operating records.
3. Analysis. Prepare and analyze each collected sample
in accordance with one of the following methods.
B. Method 305 in 40 CFR part 63, appendix A
C. Method 25D in 40 CFR part 60, appendix A
C. Method 624 in 40 CFR part 136, appendix A
D. Method 625 in 40 CFR part 136, appendix A. For
the purpose of using this method to comply with
this subpart, you must perform corrections to these
compounds based on the "accuracy as recovery"
using the factors in Table 7 of the method.
E. Method 1624 in 40 CFR part 136, appendix A
F. Method 1625 in 40 CFR part 136, appendix A
13-2
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Chapter 13 - Test Methods and Procedures
G. Method 8260 and 8270. As an alternative, you may
use any more recent, updated version of
Method 8260 or 8270 approved by the EPA. For the
purpose of using Method 8260 or 8270 to comply
with 40 CFR Part 63 Subpart DD, you must maintain
a formal quality assurance program consistent with
Section 8 of Method 8260 or 8270, and this program
must include the following elements related to
measuring the concentrations of volatile compounds:
1. Documentation of site-specific procedures to
minimize the loss of compounds due to
volatilization, biodegradation, reaction, or
sorption during the sample collection, storage,
and preparation steps.
2. Documentation of specific quality assurance
procedures followed during sampling, sample
preparation, sample introduction, and analysis.
3. Measurement of the average accuracy and
precision of the specific procedures, including
field duplicates and field spiking of the off-site
material source before or during sampling with
compounds having similar chemical
characteristics to the target analytes.
H. Any other analysis methods that have been validated
in accordance with the procedures specified in
Section 5.1 and Section 5.3 and the corresponding
calculations in Section 6.1 or Section 6.3 of Method
301 in 40 CFR part 63, appendix A. The data are
acceptable if they meet the criteria specified in
Section 6.1.5 or Section 6.3.3 of Method 301. If
correction is required under Section 6.3.3 of Method
301, the data are acceptable if the correction factor is
within the range of 0.1 to 1.30. Other sections of
Method 301 are not required.
13-3
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Chapter 13 - Test Methods and Procedures
Calculations. Calculate the average VOHAP concentration
(C) on a mass-weighted basis by using the results for all
samples analyzed in accordance with 1b(3) and the
following equation. An owner or operator using a test
method that provides species-specific chemical
concentrations may adjust the measured concentrations to
the corresponding concentration values which would be
obtained had the off-site material samples been analyzed
using Method 305. To adjust these data, the measured
concentration for each individual HAP chemical species
contained in the off-site material is multiplied by the
appropriate species-specific adjustment factor (fm305) listed in
Table 1 in the rule.
C = y x £ (Q, x C,)
where:
Average VOHAP concentration of the off-site material at
the point-of-delivery on a mass-weighted basis, ppmw.
Individual sample "i" of the off-site material.
n = Total number of samples of the off-site material collected
(at least 4) for the averaging period (not to exceed
1 year).
Q, = Mass quantity of off-site material stream represented by
C,, kg/hr.
QT - Total mass quantity of off-site material during the
averaging period, kg/hr.
C, = Measured VOHAP concentration of sample "i" as
determined in accordance with the requirements of
§ 63.694(a), ppmw.
1c. Knowledge
1. Prepare documentation that presents the basis of the
knowledge.
2. If test data is used as the basis for the knowledge then
document the test method, sampling protocol and means
by which sampling variability and analytical variability
are accounted for.
13-4
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Chapter 13 - Test Methods and Procedures
To determine the
average VOHAP
concentration of an
off-site material stream
at the point-of-
treatment use the
procedures specified
in § 63.694(c).
3. If species-specific chemical concentration test data is
used as the basis of the knowledge then the data may be
adjusted as if it had been obtained under Method 305.
4. If the Administrator and the owner or operator disagree
over the VOHAP concentration gained by knowledge
then direct measurement shall be used.
2. Determining the average VOHAP concentration of an off-site
material stream at the point-of-treatment.
2a. To determine the average VOHAP concentration of an off-
site material stream at the point of treatment, samples of the
off-site material stream shall be collected at the point-of-
treatment in a manner such that volatilization of organics
contained in the sample is minimized and an adequately
representative sample is collected and maintained for
analysis by the selected method. Each collected sample shall
be prepared and analyzed in accordance with one of the
methods listed previously in 1b and in § 63.694(b)(2)(ii)(A)
through § 63.694(b)(2)(ii)(l) as applicable to the sampled off-
site material for the purpose of measuring the HAP listed in
Table 1 in the rule.
2b. Calculations. Calculate the average VOHAP concentration
(C) on a mass-weighted basis by using the results for all
samples analyzed in accordance with § 63.694(c)(2) and by
using the following equation. If you are using a test method
that provides species-specific chemical concentrations you
may adjust the measured concentrations to the
corresponding concentration values which would be
obtained had the off-site material samples been analyzed
using Method 305. To adjust these data, the measured
concentration for each individual HAP chemical species
contained in the off-site material is multiplied by the
appropriate species-specific adjustment factor (fm305) listed in
Table 1 in the rule.
C--L
n
E(Q,
13-5
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Chapter 73 - Test Methods and Procedures
To determine the
VOHAP concentration
limit use the
procedures specified
in § 63.694(d)
where:
C -
i
n
Q,
QT
C, •
Average VOHAP concentration of the off-site material on
a mass-weighted basis, ppmw.
Individual sample "i" of the off-site material.
Total number of samples of the off-site material collected
(at least 4) for the averaging period (not to exceed
1 year).
Mass quantity of off-site material stream represented by
C,, kg/hr.
Total mass quantity of off-site material during the
averaging period, kg/hr.
Measured VOHAP concentration of sample "i" as
determined in accordance with the requirements of
§ 63.694(a), ppmw
3.
Determining the treatment process VOHAP concentration
limit.
3a. Identify all off-site material streams entering the process.
Prepare and analyze the average VOHAP concentration of
each off-site material stream at the point-of-delivery in
accordance with one of the methods listed previously in 1b
and in § 63.694(b). Calculate the VOHAP concentration
limit by using the results determined for each individual off-
site material stream and the following equation:
m n
E(Qx *CX) + E(Qy* 500 ppmw)
X = 1
X = 1
E Q>
where,
x -
y -
m =
VOHAP concentration limit, ppmw
Individual off-site material stream "x" that has a VOHAP
concentration less than 500 ppmw at the
point-of-delivery
Individual off-site material stream *y" that has a VOHAP
concentration equal to or greater than 500 ppmw at the
point-of-delivery
Total number of *x" off-site material streams treated by
process
13-6
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Chapter 13 - Test Methods and Procedures
To determine required
HAP mass removal
rate (RMR) use the
procedures specified
in § 63.694(e).
n - Total number of "y" off-site material streams treated by
process
Qx - Total mass quantity of off-site material stream "x," kg/yr
Qy - Total mass quantity of off-site material stream "y," kg/yr
Cx - VOHAP concentration of off-site material stream "x" at
the point-of-delivery, ppmw
4. Determining required HAP mass removal rate (RMR).
4a. Identify each individual stream containing HAP that enters
the treatment process.
4b. Determine the average VOHAP concentration at the point-of
-delivery for each stream identified in 4a using the test
methods and procedures specified in § 63.694(b)
4c. For each stream identified in 4a that has an average VOHAP
concentration ^500 ppmw at the point-of-delivery,
determine the average volumetric flow rate and the density
of the off-site material stream at the point-of-delivery.
4d. Calculate the required HAP mass removal rate (RMR) by
using the average VOHAP concentration, average volumetric
flow rate, and density determined in 4c of this section for
each stream and the following equation:
RMR =
n
E
y=l
V
!y - 500 ppmw)
106
where:
RMR
y
n
V,,
Required HAP mass removal rate, kg/hr.
Individual stream "y" that has a VOHAP
concentration equal to or greater than 500 ppmw at
the point-of-delivery as determined in § 63.694(b).
Total number of "y" streams treated by process.
Average volumetric flow rate of stream "y" at the
point-of-delivery, mYhr.
Density of stream "y," kg/m3
Average VOHAP concentration of stream *y" at the
point-of-delivery as determined in § 63.694(b)(2),
ppmw.
13-7
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Chapter 13 - Test Methods and Procedures
5. Determining the actual HAP mass removal rate (MR).
5a. Base the actual HAP mass removal rate (MR) on the results
for a minimum of three consecutive runs, each having a
sampling time of one hour.
5b. Determine the HAP mass flow entering the process (Eb) and
exiting the process (Ea) using the test methods and
procedures specified in paragraphs 6b through 6d.
5c. Calculate the actual HAP mass removal rate using the
following equation:
MR - Eb-Ea
To determine actual
HAP mass removal
rate (MR) use the
procedures specified
in § 63.694(0.
Use the test methods
and procedures
specified in
§ 63.694(g)(2) through
§ 64.694(g)(4).
To determine the
treatment process
HAP reduction
efficiency (R) use the
procedures specified
in § 63.694(g).
where:
MR = Actual HAP mass removal rate, kg/hr
Eb - HAP mass flow entering process as determined in
paragraph 5b of this section, kg/hr.
Ea - HAP mass flow exiting process as determined in
paragraph 5b of this section, kg/hr.
6. Determining the treatment process HAP reduction
efficiency (R).
6a. Base the HAP reduction efficiency (R) for a treatment process
on the results for a minimum of three consecutive runs.
6b. Identify each individual stream containing HAP that enters
and exits the treatment process. Prepare a sampling plan for
measuring the identified streams that accurately reflects the
retention time of the material in the process.
6c. For each run:
1. Determine the mass quantity for each stream, identified
in paragraph 6b, entering the process (Qb) and exiting the
process (Qa).
2. Determine the average VOHAP concentration at the
point-of-delivery for each stream entering the process (Cb)
(identified in paragraph 6b) using the test methods and
13-8
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Chapter 13 - Test Methods and Procedures
procedures specified in §63.694(b).
3. Determine the average VOHAP concentration at the
point-of-treatment for each stream exiting the process (Ca)
(identified in 6b) using the test methods and procedures
specified in § 63.694(c).
6d. Calculate the HAP mass flow entering the process (Eb) and
exiting the process (Ea) using the results determined above
and the following equations:
where:
Eb = HAP mass flow entering process, kg/hr.
Ea - HAP mass flow exiting process, kg/hr.
m = Total number of runs (at least 3)
j - Individual run "}"
Qb) = Average mass quantity of material entering process
during run "j", kg/hr.
Qaj = Average mass quantity of material exiting process during
_ run "I", kg/hr.
Caj = Average VOHAP concentration of material exiting
process during run "j" as determined in 1b, ppmw.
Cb) - Average VOHAP concentration of material entering
process during run "j" as determined in 1b, ppmw.
6f. Calculate the HAP reduction efficiency (R) using the HAP
mass removal rates determined above and the following
equation:
EH - E,
R = -2 i x 100
13-9
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Chapter 13 - Test Methods and Procedures
where:
R - HAP reduction efficiency, percent.
Eb - HAP mass flow entering process as determined in
§ 63.694(g)(4) of this section, kg/hr.
Ea - HAP mass flow exiting process as determined in
accordance with the requirements of § 63.694(g)(4) of
this section, kg/hr.
7. Determining the HAP biodegradation efficiency (Rbio).
7a. Determine the fraction of HAP biodegraded (Fblo) using one
of the procedures specified in 40 CFR part 63, appendix C.
7b. Calculate the HAP biodegradation efficiency (Rblo) by using
the following equation:
Rb,o = Fbio
To determine the HAP
biodegradation
efficiency (Rblo) use the
procedures specified
in § 63.694(h)
To determine the
actual HAP mass
removal rate (MRblo)
use the procedures
specified in
§ 63.694(1)
where:
vbio
HAP biodegradation efficiency, percent.
Fblo = Fraction of HAP biodegraded as determined in
§ 63.694(h)(1).
8. Determining the actual HAP mass removal rate (MRbio)
8a. Base the actual HAP mass removal rate (MRblo) on the results
for a minimum of three consecutive runs, each having a
sampling time of one hour.
8b. Determine the HAP mass flow entering the process (Eb) using
the test methods and procedures specified in 6b through 6d.
8c. Determine the fraction of HAP biodegraded (Fblo) using the
procedure specified in 40 CFR part 63, appendix C.
8d. Calculate the actual mass removal rate by using the HAP
mass flow rates and fraction of HAP biodegraded determined
in 8b and 8c, respectively, and the following equation:
= Eb x Fbio
13-10
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Chapter 13 - Test Methods and Procedures
To determine the
maximum HAP vapor
pressure for off-site
material in a tank use
the procedures
specified in
§ 63.694(1).
where:
MR,
bio
1 bio
= Actual HAP mass removal rate, kg/hr.
= HAP mass flow entering process, kg/hr.
- Fraction of HAP biodegraded.
9. Determining the maximum HAP vapor pressure for off-site
material in a tank.
9a. Determine the maximum HAP vapor pressure of the off-site
material composition managed in a tank using either direct
measurement as specified in 9b or by knowledge of the off-
site material as specified by 9c.
9b. Direct measurement to determine the maximum HAP vapor
pressure of an off-site material.
1. Sampling. Collect a sufficient number of samples to be
representative of the off-site material contained in the
tank. All samples shall be collected and handled in
accordance with written procedures prepared by the
owner or operator and documented in a site sampling
plan, which describes the procedure by which
representative samples of the off-site material is collected
such that a minimum loss of organics occurs throughout
the sample collection and handling process and by
which sample integrity is maintained. Maintain a copy of
the written sampling plan on-site in the facility operating
records. An example of an acceptable sampling plan
includes a plan incorporating sample collection and
handling procedures in accordance with the
requirements specified in "Test Methods for Evaluating
Solid Waste, Physical/Chemical Methods," EPA
Publication No. SW-846 or Method 25D in 40 CFR part
60 appendix A.
2. Analysis. Any one of the following methods may be
used to analyze the samples and compute the maximum
HAP vapor pressure of the off-site material:
A. Method 25E in 40 CFR part 60 appendix A;
B. Methods described in American Petroleum Institute
Bulletin 2517, 'Evaporation Loss from External
13-11
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Chapter 13 - Test Methods and Procedures
Floating Roof Tanks,";
C. Methods obtained from standard reference texts;
D. ASTM Method 2879-83; or
E. Any other method approved by the administrator.
9c. Use of knowledge to determine the maximum HAP vapor
pressure of the off-site material. Prepare and record
documentation that presents the information used as the
basis for the knowledge that the maximum HAP vapor
pressure of the off-site material is less than the maximum
vapor pressure limit listed in Table 3 or Table 4 of the rule
for the applicable tank design capacity category.
10. Determining no detectable organic emission
For examples of
proper documentation
see § 63.694(j)(3).
To determine no
detectable organic
emission use the
procedures specified
in § 63.694(k).
10a. Conduct the test in accordance with the procedures
specified in Method 21 of 40 CFR part 60, appendix A.
Check each potential leak interface (i.e., a location where
organic vapor leakage could occur) on the cover and
associated closure devices. Potential leak interfaces that
are associated with covers and closure devices include, but
are not limited to: the interface of the cover and its
foundation mounting; the periphery of any opening on the
cover and its associated closure device; and the sealing
seat interface on a spring-loaded pressure-relief valve.
10b. Perform the test when the unit contains a material having a
total organic concentration representative of the range of
concentrations for the materials expected to be managed in
the unit. During the test, secure the cover and closure
devices in the closed position.
10c. The detection instrument shall meet the performance
criteria of Method 21 of 40 CFR part 60, appendix A,
except the instrument response factor criteria in
section 3.1.2(a) of Method 21 shall be for the average
composition of the organic constituents in the material
placed in the unit, not for each individual organic
constituent.
13-12
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Chapter 13 - Test Methods and Procedures
10d. Calibrate the detection instrument before use on each day
of its use by the procedures specified in Method 21 of
40 CFR part 60, appendix A, using the following
calibration gases.
1. Zero air (less than 10 ppmv hydrocarbon in air); and
2. A mixture of methane or n-hexane in air at a
concentration of approximately, but less than
10,000 ppmv.
10e. You may choose to adjust or not adjust the detection
instrument readings to account for the background organic
concentration level. If you choose to adjust the instrument
readings for the background level, the background level
value must be determined according to the procedures in
Method 21 of 40 CFR part 60 appendix A.
10f. Check each potential leak interface by traversing the
instrument probe around the potential leak interface as
close to the interface as possible, as described in Method
21. In the case when the configuration of the cover or
closure device prevents a complete traverse of the
interface, all accessible portions of the interface shall be
sampled. In the case when the configuration of the closure
device prevents any sampling at the interface and the
device is equipped with an enclosed extension or horn
(e.g., some pressure relief devices), place the instrument
probe inlet at approximately the center of the exhaust area
to the atmosphere.
10g. You must determine if a potential leak interface operates
with no detectable emissions using the applicable
procedure specified as follows.
1. If you choose not to adjust the detection instrument
readings for the background organic concentration
level, then the maximum organic concentration value
measured by the detection instrument is compared
directly to the applicable value for the potential leak
interface as specified in 10h.
2. If you choose to adjust the detection instrument
readings for the background organic concentration
13-13
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Chapter 73 - Test Methods and Procedures
Control device
performance test
procedures are found
in § 63.694(1)
Control device
percent reduction
equipment.
lOi.
level, the value of the arithmetic difference between
the maximum organic concentration value measured
by the instrument and the background organic
concentration value as determined in 10e is compared
with the applicable value for the potential leak
interface as specified in 10h.
A potential leak interface is determined to operate with no
detectable emissions using the applicable criteria specified
as follows
1. For a potential leak interface other than a seal around a
shaft that passes through a cover opening, the potential
leak interface is determined to operate with no
detectable organic emissions if the organic
concentration value determined in 10g is less than
500 ppmv.
2. For a seal around a shaft that passes through a cover
opening, the potential leak interface is determined to
operate with no detectable organic emissions if the
organic concentration value determined in 10g is less
than 10,000 ppmv.
11. Determining closed-vent system and control device
performance compliance.
11 a. Use Method 1 or 1A of 40 CFR part 60, append ix A, as
appropriate, for selection of the sampling sites at the inlet
and outlet of the control device.
1. To determine compliance with a control device
percent reduction requirement, sampling sites shall be
located at the inlet of the control device and at the
outlet of the control device and as specified below.
A. The control device inlet sampling site shall be
located after the final product recovery device.
B. If a vent stream is introduced with the
combustion air or as auxiliary fuel into a boiler or
process heater, select the location of the inlet
sampling sites to ensure that the measurement of
total HAP concentration or TOC concentration,
13-14
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Chapter 13 - Test Methods and Procedures
as applicable, includes all vent streams and
primary and secondary fuels introduced into the
boiler or process heater.
2. To determine compliance with an enclosed
combustion device concentration limit, the sampling
site shall be located at the outlet of the device.
11 b. Determine the gas volumetric flow rate using Method 2,
2A, 2C, or 2D of 40 CFR part 60, appendix A, as
appropriate.
11c. To determine compliance with the control device percent
reduction requirement, use Method 18 of 40 CFR part 60,
appendix A; alternatively, any other method or data that
has been validated according to the applicable procedures
in Method 301 in 40 CFR part 64 appendix A may be
used. Use the following procedures to calculate percent
reduction efficiency:
1. The minimum sampling time for each run shall be 1
hour in which either an integrated sample or a
minimum of four grab samples shall be taken. If grab
sampling is in used, then the samples are taken at
approximately equal intervals in time such as 15
minute intervals during the run.
2. Compute the mass rate of either TOC (minus methane
and ethane) or total HAP (E, and E0, respectively) using
the following equations.
(scalesym
£
scalesyml50jscalesyml50 - scalesymlSOl
I scalesym
£
scalessymlSOjscalesymlSO = scalesym 1501
13-15
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Chapter 13 - Test Methods and Procedures
where:
E,, E0 -
M,,,MOJ -
Q,, Qo -
K,
Concentration of sample component "j" of the
gas stream at the inlet and outlet of the control
device, respectively, dry basis, ppmv.
Mass rate of TOC (minus methane and ethane) or
total HAP at the inlet and outlet of the control
device, respectively, dry basis, kg/hr.
Molecular weight of sample component *j" of the
gas stream at the inlet and outlet of the control
device, respectively, gram/gram-mole.
Flow rate of gas stream at the inlet and outlet of
the control device, respectively, dry standard
cubic meter per minute.
Constant, 2.494 x 1CT6 (ppmv"1) (gram-mole per
standard cubic meter) (kg/g) (minute/hour), where
standard temperature (gram-mole per standard
cubic meter) is 20° C.
When the TOC mass rate is calculated, sum all
organic compounds (minus methane and ethane)
measured by Method 18 of 40 CFR part 60,
appendix A using the equation in 1 1c(2).
When the total HAP mass rate is calculated, sum
only the HAP constituents using the equation in
3. The percent reduction in TOC (minus methane and
ethane) or total HAP shall be calculated as follows:
R . =
CO
E - E
x 100
where:
Red
E,
Control efficiency of control device, percent.
Mass rate of TOC (minus methane and ethane) or total
HAP at the inlet to the control device as calculated
under paragraph § 63.694(l)(3)(ii) [11c(2)], kg TOC/hr
or kg HAP/hr.
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Chapter 13 - Test Methods and Procedures
E0 - Mass rate of TOC (minus methane and ethane) or total
HAP at the outlet to the control device as calculated
under paragraph § 63.694(l)(3)(ii) [11c(2)], kg TOC/hr
or kg HAP/hr.
4. If the vent stream entering a boiler or process heater is
introduced with the combustion air or as a secondary
fuel, determine the weight-percent reduction of total
HAP or TOC (minus methane and ethane) across the
device by comparing the TOC (minus methane and
ethane) or total HAP in all combusted vent streams and
primary and secondary fuels with the TOC (minus
methane and ethane) or total HAP exiting the device,
respectively.
11d. To determine compliance with the enclosed combustion
device total HAP concentration limit of 40 CFR Part 63
Subpart DD, use Method 18 of 40 CFR part 60 appendix A
to measure either TOC (minus methane and ethane) or
total HAP. Alternatively, any other method or data that has
been validated according to Method 301 in appendix A of
40 CFR 63, may be used. Use the following procedures to
calculate parts per million by volume concentration,
corrected to 3 percent oxygen:
1. The minimum sampling time for each run shall be
1 hour in which either an integrated sample or a
minimum of four grab samples shall be taken. If grab
sampling is used, then the samples shall be taken at
approximately equal intervals in time, such as
15 minute intervals during the run.
2. Calculate the TOC (Total Organic Compounds)
concentration or total HAP concentration according to
the following procedures:
A. Compute the TOC concentration (CTOC), which is the
sum of the concentrations of the individual
components, for each run using the following
equation:
iiL
i = l X
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Chapter 13 - Test Methods and Procedures
where:
-TOC
n
x
Correcting to 3%
Oxygen
= Concentration of total organic compounds minus
methane and ethane, dry basis, ppmv.
- Concentration of sample components j of sample i,
dry basis, ppmv.
- Number of components in the sample.
- Number of samples in the sample run.
B. Compute the total HAP concentration (CHAP)
according to the above equation in except that only
HAP constituents shall be summed.
3. Correct the measured TOC concentration or total HAP
concentration to 3 percent oxygen as follows:
A. Use the emission rate correction factor or excess air,
integrated, sampling an analysis procedures of
Method 3B of 40 CFR part 60, appendix A to
determine the oxygen concentration (%O2dry).
Collect the samples during the same time that the
samples are collected for determining TOC
concentration or total HAP concentration.
B. Compute the concentration corrected to 3 percent
oxygen (Cc) using the following equation:
C =
*"
17.9
20.9 - %O
2dry
where:
Cc
TOC concentration or total HAP concentration
corrected to 3 percent oxygen, dry basis, ppmv.
13-18
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Chapter 14 - Recordkeeping, Notification and Reporting Requirements
Example forms are
provided, but you
don't have to use
them.
You must keep records
for 5-years (3 years
can be kept onsite;
2 years can be kept
off site).
What do I have to report and when?
You will need to complete several different types of reports based on
the type of process(es) at your facility. Table 14.1 shows when these
reports are due.
Can I get example reporting forms?
We have included example forms for all of the reports that are
required in this rule. You will find the following example reports
available in this chapter.
• Initial Notification Report
• Application for Approval of Construction or Reconstruction
• Notification of Compliance Status
• Semiannual Summary Report
You may use these forms for reporting, but you are not required to
use them. You may want to check with your State or local air
pollution control board to make sure that they do not have their own
forms. If you do use the forms, first be sure that they meet any
requirements that the State or local agency has.
What records must I keep?
The owner or operator must comply with the recordkeeping
requirements of § 63.10 of 40 CFR 63 subpart A - General
Provisions which include:
• occurrence and duration of each startup, shutdown, or
malfunction of operation
• actions taken during periods of startup, shutdown, or
malfunction when actions are different from the procedures
specified in the affected sources' startup, shutdown, and
malfunction plan
• all continuous monitoring systems (CMS) calibration checks
• all adjustments and maintenance performed on CMS
• all documentation concerning the internal floating roof
14-1
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Chapter 14 - Record keeping, notification, and reporting requirements
What reports must I submit?
The owner or operator must comply with the reporting requirements
of § 63.9 and § 63.10 of 40 CFR 63 subpart A - General Provisions
which include:
• progress reports
• periodic startup, shutdown, and malfunction reports
• immediate startup, shutdown, and malfunction reports
• waiver of reporting requirements
• results of any performance tests performed under § 63.7
before and after a Title V permit has been issued
• notification to the Administrator in advance of each
inspection required under § 63.695(b) through § 63.695(f),
to provide the Administrator with the opportunity to have an
observer present during the inspection.
• a notification of performance tests specified in § 63.7 and
§ 63.9(g).
« performance test reports specified in § 63.10(d)(2).
• a summary report specified in § 63.10(e)(3) shall be
submitted on a semiannual basis (i.e., once every 6-month
period). The summary report must include a description of
all excursions as defined in § 63.695(e) of this subpart that
have occurred during the 6-month reporting period. For
each excursion caused when the daily average value of a
monitored operating parameter is less than the minimum
operating parameter limit (or, if applicable, greater than the
maximum operating parameter limit), the report must include
the daily average values of the monitored parameter, the
applicable operating parameter limit, and the date and
duration of the period that the exceedance occurred. For
each excursion caused by lack of monitoring data, the report
must include the date and duration of period when the
monitoring data were not collected and the reason why the
data were not collected.
14-2
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Chapter 14 - Recordkeeping, notification, and reporting requirements
all documentation concerning the external floating roof
internal floating roof inspection records, which include tank
identification number, date of inspection, any defects
detected during inspections
external floating roof inspections records which include tank
identification number, date of inspection, any defects
detected during inspections, seal gap inspection, any repairs
made to bring the seal gap measurements to conform to
specifications in § 63.695(d)
descriptions of the planned routine maintenance that was
performed in the previous 6 months and the anticipated
maintenance that will be performed in the next 6 months
records of unexpected control device malfunctions that
include duration of each period during a malfunction and
actions taken during period of malfunction to restore the
control device to normal operation
14-3
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Chapter 14 - Recordkeeping, notification, and reporting requirements
Table 14.1-Report Due Dates
If you have...
And want to submit a....
Then submit the report
before
An existing off-site material
and recovery operation.
Initial Notification Report [§ 63.9(b)]
Notification of Compliance Status
[§ 63.9(h)]
Initial Semi-annual Summary Report
[§ 63.697(b)(4)]
Subsequent Semi-annual Summary
Reports [§ 63.697(b)(4)]
[October 20, 1999] (30 days
after effective date of the
rule)
60 days after the compliance
demonstration activity (i.e.
performance test)
[March 20, 2000] (6 months
after effective date of the
rule)
[3/20] and [9/20] of each
year
A new off-site material and
recovery operation
Initial Notification Report [§ 63.9(b)]
Notification of Compliance Status
[§63.9(h)]
Initial Semi-annual Summary Report
[§ 63.697(b)(4)]
Subsequent Semi-annual Summary
Reports [§ 63.697(b)(4)]
120 days after initial startup
60 days after the compliance
demonstration activity (i.e.
performance test)
180 days after the
Notification of Compliance
Status is due
180 days after the Initial
Semi-annual Summary
Report and every 180 days
thereafter
14-4
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Example
Initial Notification Report
This is a sample notification form that can be used by facilities at their discretion to comply with
40 CFR 63.69 7(a).
Applicable Rule: 40 CFR Part 63, subpart DD-National Emission Standards for Off-site material
and Recovery Operations. Initial Notification is being made in accordance with
§ 63.697(a) and § 63.9(b).
1. Print or type the following information for each facility in which off-site material is received
(§ 63.9(b)(2)(iMii):
Owner/Operator/Title.
Street Address
City State Zip Code_
Facility Name
Facility Contact/Title,
Facility Contact Phone Number (optional).
Facility Address (if different from the owner/operator's).
Street Address
City State Zip Code_
2. Indicate your anticipated compliance date [§ 63.9(b)(2)(iii)]:
Q February 1, 2000
Q Upon startup Anticipated startup date
3. List which affected source(s) (as defined by 40 CFR 63.680(c)) exist at your facility:
14-5
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Example Initial Notification Report (Continued)
4. Briefly describe the nature, size, design and method of operation of each source or off-site
material management unit, including its operating design capacity.
5. Identify each point of emission for each hazardous air pollutant, or if a definitive identification
is not yet possible, a preliminary identification for each point of emission for each hazardous air
pollutant. If additional lines are needed, make copies of this page [§ 63.9(b)(2)(iv)].
Please indicate if the information below is: Q Actual Q Preliminary
Source ID
Source Location
Source
Description
Operation Performed
6. My facility is a major source of Hazardous Air Pollutants (HAPs) Q Yes Q No
NOTE: Only major sources of HAPs are regulated under this rule (§ 63.9(b)(v))
A major source is a facility that has the potential to emit (PJE) greater than 10 tons per year of
any one hazardous air pollutant (HAP) or 25 tons per year of multiple HAPs. All other sources
are area sources.
End of Initial Notification Form
14-6
-------
Example
Application for Approval of Construction or Reconstruction
Most State/local or Tribal regulatory agencies already have specific applications that you
must fill out to get approval to construct or reconstruct an effected source.
You should contact your State/local or Tribal agency to determine if such forms exist. If
your State/local or Tribal agency does not have existing forms, follow the requirements
found in General Provisions, §63.5(d).
End of Application for Approval of Construction or Reconstruction
14-7
-------
Example
Notification of Compliance Status
This is a sample notification form which can be used by facilities at their discretion to comply
with 40 CFR 63.697(a).
Applicable Rule: 40 CFR part 63, subpart DD-National Emission Standards for Off-site material
and Recovery Operations. Notification of Compliance Status is being made in
accordance with § 63.697(a) and § 63.9(h). Submit this report no later than 60
days after compliance demonstration activity.
1. Print or type the following information for each facility in which off-site material is received
(optional):
Owner/Operator/Title,
Street Address
City State Zip Code,
Facility Name
Facility Contact/Title,
Facility Contact Phone Number (optional).
Facility Address (if different from the owner/operator's).
Street Address
City State Zip Code_
2. For off-site material management units, check one of the following means of complying with
subpart DD [§ 63.683(b)]:
Q Control air emission in accordance with §§ 63.685 through 63.689 (go to question 3).
Q Remove or destroy HAP in the off-site material before placing it in the unit in accordance
with §63.684 (go to question 4).
Q Determine before placing the off-site material in the unit that the average VOHAP
concentration of the material is < 500 ppmw (go to question 5).
14-9
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3.
Example-Notification of Compliance Status (continued)
To control air emissions from off-site material management units, I have chosen to use the
following method(s), check all that apply [§ 63.683(b)(1)(i)].
using method
from
Q Tanks [§ 63.685]
- The maximum HAP vapor pressure for the tank is
§ 63.694(j).
- Is the tank used for a waste stabilization process? Q Yes Q No
- I use Tank Level controls determined in Table 3 and 4 of subpart DD.
- If you use Tank Level 1 controls do you meet the requirements of
40 CFR subpart OO? Q Yes Q No
- If you use Tank Level 2 controls or if the maximum HAP vapor pressure is > 76.6 kPa
then list the methods used to control air emissions and the applicable test methods used
to determine compliance (i.e. Method 21 for "No detectable organic emission").
Tank used
example:
Fixed roof tank with
internal floating roof
Meets the
requirements of...
§ 63.685(e)
Method used to determine
compliance
Method 2 1
*lf a control device is used, state the specific control device under "Methods used to
determine compliance" and be sure to answer questions 7 through 10.
Oil-Water, Organic-Water Separators [§ 63.686]
I use one of the following to control air emissions:
Q A floating roof
Q A fixed roof vented through a closed-vent system to a control device (make certain to
answer questions 7 through 10)
Q A pressurized separator
and
Q I comply with the provisions in 40 CFR subpart W
Surface Impoundments [§ 63.687]
I use one of the following to control air emissions:
Q A floating membrane cover
Q A cover vented through a closed-vent system to a control device (make certain to
answer questions 7 through 10)
and
Q I comply with the provisions in 40 CFR subpart QQ
14-10
-------
Example-Notification of Compliance Status (continued)
Q Container [§ 63.688]
- Design capacity
- Is the container used in a waste stabilization process? Q Yes Q No
- Is the container used in light material service? Q Yes Q No
- I use container level controls.
and
Q I comply with 40 CFR subpart PP
Q Transfer Systems [§ 63.689]
- Is the transfer system an individual drain system?
Q Yes and I comply with 40 CFR subpart RR
Q No and I use one of the following to control air emissions
Q A transfer system that uses covers
Q A transfer system that uses continuous hard piping
Q A transfer system that is enclosed and vented to a control device where the
internal pressure in the vapor headspace is and the atmospheric
pressure is (make certain that you answer questions 7 through 10)
4. To remove or destroy the HAP contained in a material, I use a process that achieves one of the
following performance levels [§ 63.683(b)(1)(ii)]:
Q VOHAP Concentration [§ 63.684(b)(1)]
- Method(s) used
- Concentration at point-of-delivery , concentration at point-of-treatment
Q HAP Mass Removal Rate [§ 63.684(b)(2)]
- Method(s) used
- MR = , RMR = .
Q HAP Reduction Efficiency [§ 63.684(b)(3)]
- Method(s) used
- Average VOHAP concentration,
- Percent HAP reduction
- Point-of-treatment VOHAP concentration (if applicable).
Q Biological Degradation [§ 63.684(b)(4)]
- Method(s) used
- R- Rblo-
- MRblo = ,RMR
Q Incineration [§ 63.684(b)(5)
Q My incinerator has a permit under 40 CFR 270 or is in compliance with 40 CFR 266.
or
Q My boiler or industrial furnace has a permit under 40 CFR 270 or is in compliance with
40 CFR 266.
14-11
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Example-Notification of Compliance Status (continued)
4a. Describe how you will monitor the process to ensure that it continuously achieves these
performance levels
5. Have you determined that the off-site material has an average VOHAP concentration that
is < 500 ppmw at the point-of-delivery? Q Yes Q No If you answered "yes," what Test
Method(s) did you use to determine this? If you answered "no," make certain you answer
either question 3 or 4 [§ 63.683(b)(1)(iii)].
Test Method(s)
6. If a process vent is part of an affected source, check one of the following [§ 63.683(c)]:
Q The vent stream from each process vent is routed through a closed-vent system to a control
device (make certain you answer questions 7-10) [§ 63.690(a)].
or
Q I have determined that the average VOHAP concentration of the material is < 500 ppmw
at the point-of-delivery using method(s) specified in § 63.694(b)
[§ 63.690(b)].
7. If a closed-vent system is used, check the following [§ 63.693(c)]:
Q the closed-vent system complies with the requirements of § 63.693(c), including the
maintenance of all records.
Q The closed-vent system is designed to operate with no detectable organic emissions
determined by method in § 63.694(k) or,
Q The closed-vent system is designed to operate at a pressure below the atmospheric pressure
and the system is monitored by at least one pressure gauge.
- Atmospheric pressure
- Pressure in the closed-vent system
8. If a control device is used, check all that apply [§ 63.693]:
Q Carbon adsorption control device [§ 63.693(d)]
- Recovers % Total Organic Compounds1
or % Total HAP listed in Table 1
- I will demonstrate compliance by either: Q Performance Test or Q Design Analysis2
- Describe your plan to manage the carbon used for the carbon adsorption system
[§ 63.693(d)(4)].
14-12
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Example-Notification of Compliance Status (continued)
Q Condenser [§ 63.693(e)]
- Recovers % Total Organic Compounds1
or % Total HAP listed in Table 1
- I will demonstrate compliance by either: Q Performance Test or Q Design Analysis2
Q Vapor Incineration [§ 63.693(f)]
Q Destroys Total Organic Compounds1:
- by % or
- to achieve an outlet Total Organic Compound1 concentration of ppmv.
or
Q Destroys the HAP listed in Table 1:
- by % or
- to achieve a total outlet HAP concentration of ppmv.
or
Q Maintain conditions in the incinerator where:
- residence time = s, and
- temperature = °C
- I will demonstrate compliance by either: Q Performance Test or Q Design Analysis2
Q Boilers and Process Heaters [§ 63.693(g)]
Q Destroys Total Organic Compounds1:
- by %, or
- to achieve in the exhausted combustion gases a Total Organic Compound1
concentration of ppmw.
or
Q Destroys HAP listed in Table 1:
- by %, or
- to achieve in the exhausted combustion gases a total HAP concentration of
ppmw.
or
Q Maintain conditions where:
- Residence time - s, and
- Temperature = °C
or
Q Introduce the vent stream with the fuel that provides the predominant heat input
or
Q Introduce the vent stream to a boiler or process heater which is permitted under
40 CFR part 270 and complies with the requirements of 40 CFR part 266 subpart H.
- I will demonstrate compliance by either: Q Performance Test or Q Design Analysis2
Q Flare control device (I have done all of the following) [§ 63.693(h)]
Q Conduct visible emission test
Q Determined net heating value of gas being combusted
Q Determined flare exit velocity
1. Not including Methane and Ethane.
2. Attach all design analyses to this report. 1 4-1 3
-------
Example-Notification of Compliance Status (continued)
9. Describe what methods you will use to inspect and monitor the previously checked control
devices (from question 8), including what parameters will be monitored and at what level
equipment will be calibrated [§ 63.693].
10. Describe which Test Methods you will use to determine compliance for the control devices
which you've checked [§ 63.693].
11. If you plan to make any changes in the methods you use to determine compliance, describe
those changes in detail, including, how you plan to monitor and report using the new
method(s) [§ 63.9(h)(2)(i)(C)].
14-14
-------
Example-Notification of Compliance Status (continued)
12. List all the HAPs emitted [§ 63.9(h)(2)(i)(D)]
HAP
Quantity(units)
Averaging Time
Test Method
*lf you need more room, make copies of this page.
13. Using the HAP information determine if your facility is a major source or an area source
[§
Q Major Source Q Area Source
NOTE: Only major sources of HAPs are regulated under this rule
A major source is a facility that has the potential to emit (PTE) greater than 10 tons per year of
any one hazardous air pollutant (HAP) or 25 tons per year of multiple HAPs. All other sources
are area sources.
14. I will provide the Initial Semiannual Summary Report on _ and the subsequent
summary reports on _ and _ of each year [§ 63.9(h)(2)(i)(C)].
15. Compliance statement [§ 63.9(h)(2)(i)(G)].
Q The off-site material management units used in this off-site material and recovery operation
comply with subpart DD.
Q The process vents used in this off-site material and recovery operation comply with subpart
DD.
Sign:.
Date:
14-15
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Example
Semiannual Summary Report
This is a sample report form that can be used by facilities at their discretion to comply with
40 CFR 63.697(b).
Applicable Rule: 40 CFR part 63, subpart DD-National Emission Standards for Off-site material
and Recovery Operations. This Summary Report is being made in accordance
with § 63.697(b)(3) (optionally included in this report), § 63.697(b)(4), and
§ 63.10(e)(3) and covers a 6 month period from to .
13. Print or type the following information for each facility in which off-site material is
received [§ 63.697(b)(3)J:
Owner/Operator/Title
Street Address
City State Zip Code.
Facility Name
Facility Contact/Title,
Facility Contact Phone Number (optional).
Facility Address (if different from the owner/operator's).
Street Address
City State Zip Code.
14-17
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Example Semiannual Summary Report (Continued)
14. List the excursions for each affected source and record the information in the following
table for the six month period.
Affected Source:
Reporting Pe
Month
January
February
March
April
May
June
July
August
September
October
November
December
;riod: from to
Parameter type: Q
Q
Date(s) of
excursions
Duration
Daily Average Values of
Operating Parameter
Minimum
Maximum
Operating Parameter
Limit
*lf excursion is caused by a lack of monitoring data, then write "lack of data" under daily averaging
values and be certain to record the date and duration for when the data was not recorded.
then,
- Explain the reasons why data were not collected.
14-18
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Example Semiannual Summary Report (Continued)
15. If during any time during this reporting period, you took actions during a startup, shutdown,
or malfunction (including action to correct a malfunction) that are not completely consistent
with the procedures specified in your startup, shutdown, or malfunction plan, state that
information here [§ 63.697(b)(3)]:
*lt is not required that question 3 be included in this report; however, this information must be
reported, and § 63.697(b)(3)(2) allows for this information to be included in this summary
report.
I certify the above information to be accurate
Sign: date:.
14-19
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Chapter 15 - Other Requirements and Information
You're regulated by
your State, local, or
Tribal air pollution
control agency.
Authority has not been
delegated concerning
§ 63.694.
You can find guidance
on title V and potential
to emit at
www.epa.gov/ttii/oarp
g/t5pgm.html.
Who administers this regulation?
Your State or local air pollution control agency will be regulating
you under this rule. If your facility is located in Indian Country, your
eligible Tribe will regulate you.
Definition: An eligible Tribe means a Tribe that has been
determined by EPA to meet criteria for being treated in
the same manner as a State, pursuant to the regulations
implementing section 301(d)(2) of the ACT.
There are some portions of this rule that we have chosen not to
delegate to your State, locality, or eligible Tribe. Contact your EPA
Regional office concerning the regulations under § 63.694.
Do I need a title V permit?
Yes. This rule applies to major sources of HAP. Under title V, you
must obtain a permit if your facility is a major source.
To determine if your facility is a major source, you will need to
calculate your HAP emissions from your entire facility- If y°u d° not
have enforceable limits in a State, local or Tribal permit, you must
calculate your emissions by determining your potential emissions.
If you need help determining if your facility is a major source or
what your potential emissions are, these terms are defined in the
Operating Permits Rule § 70.2.
15-1
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Chapter 15 - Other requirements and Information
You'll need to add the
requirements of this
rule to your title V
permit.
How do I change my permit to include this rule?
You must reopen your title V permit to add new rules when all of
the following occur:
a new MACT rule becomes effective;
your initial title V permit has been issued in final form; and
more than three years are left on the permit.
If a new rule is effective'
and you have ...
less than three years on your
permit
three years or more left on
your permit
do not already have a final
title V permit
then.
update your title V permit
during renewal.
reopen your permit within
18 months of promulgation
of the rule.
update your permit
application or draft permit.
1. the rule's effective date is announced in the Federal Register
when it is promulgated. The effective date for this rule is
September 20, 1999.
What portions 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
NESHAPs, including the off-site material rule.
This means that when you became subject to this rule, you also
became subject to the General Provisions. Some sections in the
off-site rule over-ride the General Provisions. You'll find Table 2 of
the final rule shows you which sections of the General Provisions
apply to Off-Site Waste and Recovery Operations NESHAP and
which don't.
Is a Startup, Shutdown, and Malfunction Plan required?
A Startup, Shutdown, and Malfunction Plan (SSMP) is a document
required in § 63.6(e)(3)(l) of the General Provisions. A SSMP is
required for off-site waste and recovery operations.
15-2
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Chapter 16 - Getting Additional Help
If you have questions
about the rule, first try
your State and local
air pollution control
agencies.
Whom can I ask for help?
There are a lot of places you can go for help, including your:
• State and local air pollution control agency or Tribe
• Local, regional or national trade associations
• State's Small Business Assistance Program (SBAP)
• EPA regional offices
State and Local Contacts can change frequently. To obtain the most
current contact information, go to the STAPPA/ALAPCO website
(www.4cleanair.org) and then the membership directory. The
directory will provide you with the latest contact points for major air
regulatory programs (that is, toxic air pollutant emission standard,
ozone, etc.) at the State and local level.
You should contact your State/local agency or Tribe
before calling the EPA. They may already have rules in
place that are more stringent than Federal requirements.
Trade Assoc/af/ons representing the off-site material industry are
listed below. Trade associations sometimes have rule information
for their members.
Trade Association Telephone #
Address
American Petroleum
Institute
Chemical
Manufacturers Assoc.
Institute of Chemical
(202) 682-8470
(202) 887-1237
(202) 244-4799
1220LSt., NW
Washington, D.C. 20005
2501 M St., NW
Washington, D.C. 20037
4301 Connecticut Ave, NW
Waste Management
National Association (202) 434-8740
of Chemical Recyclers
Suite 300
Washington, D.C. 20008
1200 C St., NW Suite 800,
Washington, D.C. 20005
16-1
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Chapter 16 - Getting Additional Help
Check out your EPA
Regional Office home
page. It's filled with
useful information
Jhis rule has a page of
its own in the UATW's
Rule and
Implementation Page.
Many States have a Small Business Ass/stance Program. If you are a
small business and do not know who your SBAP is, you can call
EPA's Control Technology Center Hotline at (919) 541-0800 or visit
EPA's SBAP at www.epa.gov/ttn/sbap for help.
EPA Regional Air Division Office contact numbers may also change
frequently. To obtain the most up-to-date contact information, you
may want to visit your Regional Office's website.
EPA Region
Region I
Region II
Region III
Region IV
Region V
Region VI
Region VII
Region VIII
Region IX
Region X
States Covered
CT, ME, MA, NH, Rl & VT
NJ, NY, Puerto Rico &
Virgin Islands
DE, MD, PA, VA, WV & DC
AL, FL, GA, KY, MS, NC, SC
&TN
IL, IN, Ml, Wl, 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
Home Page
www.eoa.eov/region1
www.epa.eov/reeion2
www.eoa.eov/reEion3
www.eoa.eov/reeion4
www.epa.eov/reeion5
www.eoa.eov/reeion6
www. eoa.gov/reeion 7
www.epa.gov/region8
www.epa.gov/reeion9
www.eoa.gov/resion 1 0
If you have a regulated facility, call your State/local agency or Tribe
before trying the Regional Office. If you work for a State/local
agency or Tribe, call the Regional Office before trying the Office of
Air Quality Planning and Standards (OAQPS), Emission Standards
Division (ESD).
Can I get more information on the Web?
You can obtain a wealth of information on the World Wide Web
(WWW). Some of the more popular avenues for obtaining
information on this rule include:
• EPA's Unified Air Toxics Website (www.epa.gov/ttn/uatw)
You can download copies of preambles, regulations,
background information documents, policy memos, and
16-2
-------
Chapter 76 - Getting Additional Help
other guidance materials here. All rule pages can be found
under the Rules and Implementation Page.
• EPA's Applicability Determination Index (ADI)
(http://es.eDa.gov/oeca/eptdd/adi.html)
EPA's Office of Enforcement and Compliance Assurance
(OECA) posts memos dealing with applicability and
compliance at this site.
• STAPPA/ALAPCO home page (http:www.4cleanair.org )
STAPPA/ALAPCO is the State and Territorial Air Pollution
Program Administrators (STAPPA) and Local Air Pollution
Control Officials (ALAPCO) organization. STAPPA/ALAPCO
has members representing each State and local air pollution
control agency.
You can obtain air pollution information at this site,
including a document entitled "Communicating Air Quality:
A Compendium of Resources." It lists air pollution
education materials that State and local agencies have
created.
• Texas Natural Resources and Conservation Commission's
(TNRCC) web site for off-site material
(http://www.tnrcc.state.tx.us/air/opd/63/DD/ddhp.htm)
This web site contains further guidance for the off-site waste
rule, including navigateable flowcharts which can help you
in determining applicability and compliance.
A helpful document is:
EPA-453/R-96-0106, "Basis and Purpose Document for
the Development of Final National Emission Standards
for Hazardous Air Pollutants for Off-Site Waste and
Recovery Operations,' May 1996.
16-3
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Appendix A
Contents for 40 CFR Part 63, Subpart DD, Final Rule
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Appendix A-Subpart DD, final rule
Contents for 40 CFR Part 63, Subpart DD, Final Rule
Applicability
Is my facility regulated under this subpart?
What is an off-site material?
What is an affected source?
Are there any processes that are exempt?
How long do I have to come into compliance with the rule?
§ 63.680(a)
§ 63.680(b)
§ 63.680(c)
§ 63.680(d)
§ 63.680(6)
Definitions
What are some commonly used terms in this subpart?
§ 63.681
Standards: General
What are my options to achieve compliance?
Are any off-site management units exempt?
§ 63.683(b)
§ 63.683(c)
Standards: Off-Site material treatment
If I choose to show compliance by removing or destroying HAP, what must I do to
comply?
§ 63.684
Standards: Tanks
If I choose to show compliance by controlling air emissions from a tank, what must I do to § 63.685(b)
comply?
If I use Tank Level 1 controls, what requirements must I meet? § 63.685(c)
If I use Tank Level 2 controls, what requirements must I meet? § 63.685(d)
If I use a fixed-roof equipped with an internal floating roof to comply with Tank Level 2 § 63.685(e)
controls, what additional requirements must I meet?
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Appendix A-Subpart DD, final rule
If I use an external floating roof to comply with Tank Level 2 controls, what additional
requirements must I meet?
§ 63.685 (f)
If I use a control device with air emissions vented through a closed-vent system to comply § 63.685(g)
with Tank Level 2 controls, what additional requirements must I meet?
Standards: Oil-Water and Organic-Water Separators
If I choose to show compliance by controlling air emissions from an oil-water or
organic-water separator, what must I do to comply?
§ 63.686(b)
Standards: Surface Impoundments
If I choose to show compliance by controlling air emissions from a surface impoundment,
what must I do to comply?
§ 63.687(b)
Standards: Containers
If I choose to show compliance by controlling air emissions from a container, what must
do to comply?
§ 63.688(b)
What must I do if my container has a design capacity > 0.1 m3 and is used for treatment of § 63.688(c)
off-site waste by a waste stabilization process?
Standards: Transfer Systems
If I choose to show compliance by controlling air emissions from a transfer system, what § 63.689(a)
must I do to comply?
What if my transfer system is an individual drain system? § 63.689(b)
What if my transfer system is not an individual drain system? § 63.689(c)
What if I use covers to control air emissions from my transfer system? § 63.689(d)
Standards: Process Vents
How must I control HAP emitted from process vents?
§ 63.690(b)
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Appendix A-Subpart DD, final rule
Standards: Equipment Leaks
How must I control HAP emitted from equipment leaks?
§ 63.691 (b)
Standards: Closed-Vent Systems and Control Devices
What requirements must I meet for closed-vent systems and control devices?
How must the closed-vent system be designed and operated?
What are the requirements for carbon adsorption control devices?
What are the requirements for condenser control devices?
What are the requirements for vapor incinerator control devices?
What are the requirements for boiler and process heater control devices?
What are the requirements for flare control devices?
§ 63.693(b)
§ 63.693(c)
§ 63.693(d)
§ 63.693(e)
§ 63.693(f)
§ 63.693(g)
§ 63.693(h)
Testing Methods and Procedures
How do I determine the VOHAP concentration for off-site material at the point-of- § 63.694(b)
delivery?
How do I determine the VOHAP concentration for the treated off-site material streams at § 63.694(c)
the point-of-treatment?
How do I determine the treatment process VOHAP concentration limit? § 63.694(d)
How do I determine the required HAP mass removal rate? § 63.694(e)
How do I determine the actual HAP mass removal rate (MR)? § 63.694(f)
How do I determine the HAP reduction efficiency? § 63.694(g)
How do I determine the HAP biodegradation efficiency? § 63.694(h)
How do I determine the actual HAP mass removal rate (MRblo)? § 63.694(i)
How do I determine the maximum organic HAP vapor pressure of the off-site material in § 63.694(j)
tanks?
How do I determine "no detectable organic emissions?" § 63.694(k)
How do I determine closed-vent system and control device performance compliance? § 63.694(1)
How do I determine the process vent stream flow rate and total HAP concentration? § 63.694(m)
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Appendix A-Subpart DD, final rule
Inspection and Monitoring Requirements
What inspections and monitoring must I do for a Tank Level 2 fixed roof and floating roof? § 63.695(b)
What inspections and monitoring must I do for closed-vent systems? § 63.695(c)
What inspections and monitoring must I do for a transfer system equipped with a cover? § 63.695(d)
Recordkeeping Requirements
Which General Provisions apply?
What records must I maintain for a control device?
What records must I maintain for an internal floating roof?
What records must I maintain for an external floating roof?
What records must I maintain for a fixed roof?
What records must I maintain for an enclosure?
What records must I maintain for planned routine maintenance operations?
What records must I maintain for unexpected control device malfunctions?
§ 63.696(a)
§ 63.696(b)
§ 63.696(d)
§ 63.696(d)
§ 63.696(e)
§ 63.696(1)
§ 63.696(g)
§ 63.696(h)
Reporting Requirements
Which General Provisions apply?
What notifications and reports must I submit for control devices?
Delegation of Authority:
What authority will not be delegated to the States?
§ 63.697(a)
§ 63.697(b)
What notifications must I submit if I have a tank equipped with an internal floating roof or § 63.697(c)
an external floating roof to comply with Tank Level 2 controls?
63.698(b)
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Appendix B General Inspection Guidance for Waste Management Unit
Requiring Air Emission Control under Subpart DD
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Appendix B - General Inspection Guidance
GENERAL INSPECTION GUIDANCE FOR WASTE MANAGEMENT UNIT
REQUIRING AIR EMISSION CONTROL UNDER SUBPART DD
This document is intended to provide guidelines for conducting an inspection of affected
facilities for compliance with subpart DD of the Off-Site Waste and Recovery Operations NESHAP.
The scope is limited to those waste management units (i.e. tanks, surface impoundments, and
containers that require air emission controls under the rule. The material contained in this
document is intended to identify and list those points that require the inspectors consideration
when planning and performing on-site facility inspections. The material is also generally limited to
visual and recordkeeping evaluation of regulated items, i.e., no source testing or other
measurements are required of the inspector to assess compliance. Although not addressed in this
document, discussion of emission measurement techniques and the associated monitoring
equipment may be found in other EPA reference documents such as the "Benzene Equipment Leak
Inspection Manual" (Reference EPA 340/1-90-001). The visual inspection considerations focus on
the assessment of regulated equipment using key inspection points or visible criteria while
following the necessary safety guidelines. The recordkeeping inspection considerations focus on
the evaluation of operating conditions and assessment of facility monitoring, routine
owner/operator inspection and recordkeeping requirements.
The inspection guidance is organized by equipment item. This format prevents duplication of
information and ensures that items are not overlooked, thereby saving time and eliminating
backtracking. Suggested procedural steps for evaluating specific equipment are given to guide the
inspector through the inspection. Concise, complete documentation of inspection results is
necessary and should be made at the inspection site. Inspectors should be aware of the OSHA
confined space entry regulation that became effective on April 15, 1993. This regulation can be
found at 29 CFR 1910.146. The regulation defines confined spaces and requires permits be issued
and certain safety measures followed.
Record inspection checks for this rule are presented in a separate document. They are
intended to augment information obtained during the Visual inspection. In some cases when
health and safety considerations preclude use of visual inspection techniques, facility records will
be the only source of compliance documentation available.
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Appendix B - Genera/ Inspection Guidance
In preparation for the upcoming inspection, the inspector should review the facility's file
including all applicable permits.
The following equipment will be necessary for a full
inspection:
Non-sparking flashlight
Camera
Respirator(s)
SCBA
Hard hat
Safety shoes
Calculator
Copy of Regulation
Binoculars
Extra batteries and film for camera
Photo log
Dowels to measure gaps
Employee identification /credentials
Facility map - if available
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Appendix B - General Inspection Guidance
INSPECTION GUIDANCE FOR
OFF-SITE WASTE OPERATIONS
General Information
1. Name of corporation, company, or individual owner:
2. Mailing Address:.
3. Facility Address:.
4. Source Number (permit Number, date of permit, permit
expiration, etc.):
5. Name and Title of Contact:.
6. Telephone Number:
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Appendix B - General Inspection Guidance
Inspection Information
7. Date of Inspection, Time of Day, Weather Conditions:.
8. Name and title of Government Official Conducting Inspection:
9. Pre-inspection interview:.
10. Post-inspection interview:.
11. Additional comments:
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Appendix B - Genera/ Inspection Guidance
12. Photo log:.
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Appendix B - General Inspection Guidance
13. Sketch of Facility:
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Appendix B - General Inspection Guidance
14. Follow-up activities:.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration Notes
1.
General :
What is the design capacity of the tank?
Is the off-site material managed in the tank a "light material" as
defined in the rule (§63.681)?
Is the tank used for a waste stabilization process?
Is the tank required to meet Tank Level 1 or 2 controls?
Do the tanks exhibit any signs of corrosion?
Is there a pressure gauge? What is the pressure reading?
2.
Level 1 [§63.685(c)]
If Level 1 , what Tank Level 1 controls requirements does the tank
meet:
• Determine maximum HAP vapor pressure using procedures
specified in §63.694(j)before the first time the off-site material is
placed in the tank
• Perform a new determination for changes that increase the
maximum HAP vapor pressure to levels specified in Table 3 or
Table 4 of Subpart DD for the tank design capacity
• Control air emissions in accordance with provisions specified in
40 CFR subpart OO, Level 1 , or control air emissions with the
provisions for Tank Level 2 controls as specified in §63.685(d)
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration Notes
3. Level 2 { §63.6S5(d)} ;
Tanks that may be used to meet Tank Level 2 controls:
• A fixed-roof tank equipped with an internal floating roof as
specified in §63.685(e)
• A tank equipped with an external floating roof as specified in
§63.685(f)
• A tank vented through a closed-vent system to a control device as
specified in §63.685(g)
• A pressure tank designed and operated as specified in §63.685(h)
• An enclosed tank that is vented through a closed-vent system to
an enclosed combustion control device as specified in §63.685(0
-" •
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration
Notes
4, Fixed Roof with an Internal Floating Roof [§63.685{e)]
Visually determine that the tank is a fixed roof tank with an
internal floating roof. Is the roof a separate cover or part of the
tank structural design? What materials are used in the
construction of the roof?
Inspect the periphery of the floating roof and its closure devices
for possible leaks in the shell, valves, flanges and pumps. Note
any liquid accumulations from tank appurtences or evidence of
corrosion especially on the tank shell or roof.
Inspect the fixed roof for possible visible cracks, holes, gaps or
other open spaces between roof sections or tank wall.
What is the maximum organic vapor pressure of the hazardous
waste in the tank? What is the tank's normal organic vapor
pressure? Is there a pressure gauge on the tank for continuous
readout?
What are the maximum and minimum flow-weighted annual
average volatile organic contents of the hazardous waste streams
managed in the tank?
What is the design capacity of the tanks? What is the actual
volume held in the tank?
What is the withdrawal/filling schedule for the tank? When was
the tank last emptied and refilled?
Which standard for tanks has the facility elected to comply with?
[§§ 63.683(b)(1) (i),
Visually inspect the internal floating roof components through
openings on the fixed-roof every calendar year; inspect primary
seal, secondary seal, gaskets, slotted membranes, and sleeve seals
each time the tank is emptied and degassed and at least every 10
years.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration Notes
5. Closed- Vent System ;
Is there a closed vent system associated with the fixed roof tank?
Visually inspect the closed vent system. Note visible gaps, holes
or corrosion spots seen in the ductwork of the closed vent system.
6, Control Device
Is there a control device connected to the closed-vent system?
What type of control device is used?
Is the control device operational?
Check piping valves and fittings for visible leaks.
What type of continuous monitoring device is used? Is the device
operational? What parameter is the device monitoring? Note
level monitored and compare with design levels from facility
reports during record inspection.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration
Notes
7. External Floating Roof (EFR) ! -
Visually inspect the condition of the external floating roof. Note
the condition (corrosion free, small pits in surface, pools of
standing liquid, visible corrosion spots etc.).
Confirm that the floating roof is floating on the liquid surface
(except when supported by the leg supports).
Determine that the floating roof is equipped with two continuous
seals, one above the other, between the wall of the tank and the
roof edge. (The lower seal is the primary seal, and the upper seal
is the secondary seal.)
Determine that each opening in the floating roof is equipped with
a closure device. Visually inspect for cracks, holes, gaps, or other
open spaces in the closure device or between the perimeter of
the cover opening and the closure device.
Visually inspect after installation thereafter, at least once every
year.
8. Closure Device
Determine that a closure device (seal) is between the wall of the
storage tank and the roof edge. This can be performed for the
secondary seal by visual inspection from the platform.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration
Notes
8a. Primary Seal
Determine that the seal is either a metallic shoe seal or a liquid-
mounted seal. Check that the seal is continuous around the tank.
Determine that the gaps between the wall and seal do not exceed
212 cm2 per meter of vessel diameter and the gap widths do not
exceed 3.8 cm.
Inspect and measure gaps between the wall and seal within 60
days after initial operation; thereafter, at least once every 5 years.
(Before inspection, operator shall notify the Administrator as
specified in §63.697).
For metallic shoe seals, check that there is a flexible coated fabric
that spans the space between the metal shoe and the vessel wall.
Determine that one end of the metallic shoe seal extends into the
stored liquid and the other extends a minimum vertical distance
of 61 cm (24 inches) above the liquid surface.
Identify any corrosion, holes, tears or other openings in the shoe,
flexible seal fabric, or seal envelope.
8b. Secondary Seal
Determine that a secondary seal is installed above the primary
seal and covers the annular space between the floating roof and
the wall of the tank.
Determine that the gaps between the wall and seal do not exceed
21 .2 cm2 per meter of tank diameter and the gap widths do not
exceed 1.3 cm.
Inspect and measure the gaps between the wall and seal within
60 days after initial operation; thereafter, at least once every year.
(Before inspection, operator shall notify the Administrator as
specified in §63.697.)
Look for any corrosion, holes, tears, or other openings in the
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF STORAGE TANKS [§63.685]
Inspection Consideration
Notes
9, Automatic Bleeder Vents 1 '
Observe that the vents are closed during normal operations
(exemptions for emptying or refilling).
If possible, observe a tank filling operation. While floating the
roof off the leg supports, observe whether the automatic bleeder
vents open. (Vents may be open only when the roof is being
floated off the tank bottom during filling or when the roof is
supported on the legs during draining operation.)
10, Rim Space Vents
Visually determine if the rim space vents are closed during
normal operation (exceptions during emptying or refilling).
If possible, observe whether the rim space vents are open when
the roof is being floated off the leg supports. (Rim space vents
may be open only when the roof is being floated off or landing on
the roof leg supports during filling or draining operations).
11, Emergency Roof Drain
Determine that the emergency roof drain is covered with a slotted
membrane fabric. Does the fabric cover at least 90 percent of the
opening? Were actual measurements or visual estimations used
for this determination?
12» Deck Openings
Confirm by visual inspection that each opening in the external
floating roof deck is equipped with a gasketed cover, seal or lid.
Without opening the lid or cover, visually inspect the visible
portion of any seal or gasket. Does the seal or gasket appear
worn, torn, shredded, ripped, or otherwise misaligned to prevent
forming a vapor-tight seal?
Are all deck openings closed? (The only exception is when the
device is in actual use.)
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF OIL-WATER AND ORGANIC-WATER
SEPARATORS [§63.686]
Inspection Consideration Notes
1. Separator Fixed Roof
Determine that the separator is equipped with a fixed roof
design.
Does the vapor head space underneath the fixed roof vent
through a closed-vent system to a control device (§63.1044)? If
so, determine that the separator vents directly through a closed-
vent system to a control device. (The closure device shall be
designed to operate with no detectable organic emissions, as
specified in §63.1046(a), when the control device is operating
with a head space vapor pressure equal to or greater than
atmospheric pressure).
Determine that the fixed roof and its closure devices are
designed to form a continuous barrier over the entire surface
area of the liquid in the separator.
What is the construction material of the fixed roof and its
closure devices?
Inspect the periphery of the fixed roof for possible cracks, holes,
gaps, or other open spaces between roof section joints or
between the interface of the roof edge and the separator wall.
When the separator contains regulated-material, the closure
device should be secured in the closed position except as
specified in §63.1042(c).
Inspect the closure device for visible cracks, holes, gaps or other
open spaces in the closure device or between the perimeter of
the opening and the closure device.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF OIL-WATER AND ORGANIC-WATER
SEPARATORS [§63.686]
Inspection Consideration
Notes
2. Separator Floating Roof
Confirm that the floating roof is floating on the liquid surface
during normal operations.
Determine that the floating roof is equipped with two
continuous seals, one above the other, between the wall of the
separator and the roof edge. (The lower seal is the primary seal,
and the upper seal is the secondary seal.)
Determine that each opening in the floating roof is equipped
with a closure device. Visually inspect for cracks, holes, gaps,
or other open spaces in the closure device or between the
perimeter of the cover opening and the closure device.
2a, Primary Seal
Determine that the seal is either a metallic shoe seal or a liquid-
mounted seal (§ 63.1041).
Determine that the gaps between the wall and seal do not
exceed 67 cm2 per meter of separator wall perimeter, and gap
widths do not exceed 3.8 cm.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF OIL-WATER AND ORGANIC-WATER
SEPARATORS [§63.686]
Inspection Consideration
Notes
2b. Secondary Seal :
Determine that a secondary seal is installed above the primary
seal and covers the annular space between the floating roof and
the wall of the separator.
Determine that the gaps between the separator and seal do not
exceed 6.7 cm2 per meter of separator wall perimeter and the
gap widths do not exceed 1 .3 cm.
If the floating roof is equipped with one or more emergency
roof drains, determine that the emergency roof drain is covered
with a slotted membrane fabric. Does the fabric cover at least
90 percent of the opening or flexible fabric sleeve seal?
When the separator contains regulated-material, the closure
device should be secured in the closed position except as
specified in §63.1043(c) or §63.1044(c).
Inspect separator floating roof as specified in §63.1047(b).
3. Pressurized Separator
Does the pressurized separator operate as a closed-system?
What is the design capacity of the separator? (Verify that it does
not vent as a result of compression of the vapor head space.)
All openings shall be equipped with closure devices designed
to operate with no detectable organic emissions, as specified in
§63.1046(a).
When the separator contains regulated-material, the closure
device should be secured in the closed position except as
specified in §63.1045(b)(3)(i) or (b)(3)(ii).
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF OIL-WATER AND ORGANIC-WATER
SEPARATORS [§63.6861
Inspection Consideration Notes
4. Separator Vented to Controi Device \ _•••.• ;
Is there a control device connected to the closed-vent system?
What type of control device is used?
Is the control device operational?
Check piping valves and fittings for visible leaks.
What type of continuous monitoring device is used? Is the
device operational? What parameter is the device monitoring?
Note level monitored and compare with design levels from
facility reports during record inspection.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF
SURFACE IMPOUNDMENTS [§63.687]
Inspection Consideration
Notes
General
Observe if the surface impoundment has a cover. Is it a floating
membrane cover or a cover that is vented through a closed-vent
system to a control device?
Visually inspect cover and openings such as access hatches,
sampling ports, and gauge wells. They should be covered
completely and free from cracks, gaps, holes, or open spaces.
Does the cover form a continuous barrier over the entire surface
area of the liquid?
2. Cover and Openings
If a floating membrane cover, is the cover floating on the liquid
surface (§63.942)? Inspect floating membrane following
installation and thereafter, at least once each calendar year(see
§63.946(d) for alternative inspection requirements).
Is each opening closed and in the sealed position unless
sampling, removal or equipment inspection, maintenance,
repair, or sludge removal is occurring?
If floating membrane cover is equipped with an emergency
cover drain, the drain cover can be a slotted membrane that
covers 90 percent of the opening or a flexible fabric sleeve seal?
What are the construction of the cover materials? If a FMC
fabricated of HOPE, what is the thickness of the HDPE, > 2.5
mm?
If FMC is not HDPE, does the material or composite have
(1)organic permeability properties equivalent to HDPE and
(2)chemical and physical properties to maintain the material
integrity for the intended service life?
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF
SURFACE IMPOUNDMENTS [§63.687]
Inspection Consideration
Notes
3. Vented to a Control Device "\ . '• \ '
Visually inspect the enclosure for leaks. Is each cover seal,
access hatch or other openings free from cracks or gaps, closed
and properly sealed?
At initial startup determine that the system does not have organic
emissions. After initial inspection, visually inspect at least once
per year for defects that result in air emissions, §63.695(c)(see
§63.693(b)(4)(ii) for alternative inspection requirements).
Is there a pressure gauge? What is the pressure reading?
What are the construction materials of the cover and closure
devices(consider organic vapor permeability; liquid contact;
exposure to the elements; and operating practices)?
If a regulated-material is in the surface impoundment, cover and
closure devices should be secured in the closed position with
vapors underneath vented to the control device, except as
specified in §63.943(c)(1) and (c)(2).
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF
CONTAINERS [§63.688]
Inspection Consideration Notes
1. General I i
What is the design capacity of the container?
Is the hazardous waste managed in the container a "light
material" as defined in the rule (§63.681)?
Is the container used for a waste stabilization process?
Is the container required to meet Container Level 1, 2, or 3
controls?
Does the container meet applicable U.S. Department of
Transportation Regulations?
Does the container exhibit any signs of corrosion?
Is there a pressure gauge? What is the pressure reading?
2. level 1
If Level 1, what Level 1 alternative does the container meet:
• DOT
• Cover and closure device
• Organic vapor-suppressing barrier
3. leve!2
If Level 2, what Level 2 alternative does the container meet:
• DOT
• No detectable emissions
• Vapor tight
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF
CONTAINERS [§63.688]
Inspection Consideration Notes
4.
ievdS . 'I =--: ••=.;-.- •••':" ' '.:•:;';;•••. . ;.
If Level 3, what Level 3 alternative does the container meet:
• Enclosure vented to control device
• Vented directly to control device
Is the enclosure designed/operated to meet criteria for a
permanent total enclosure (40 CFR 52.741)
Treatment of Containerized Waste (waste stabilization)
Confirm that the opening of a container for treatment purposes is
performed under a cover or enclosure equipped with a closed
vent system routing all vented container vapors to a control
device, or the container itself is venter directly through a closed
vent system to a control device.
5.
Cover, Lids and Openings
Observe that the container covers and all openings including
bungs, hatches and sampling ports are closed.
6.
Seals, Gaskets and latches
Observe that each opening on the container is sealed in the
closed position with a gasket and latch except during waste
loading, removal, inspection or sampling.
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Appendix B - General Inspection Guidance
GUIDANCE FOR VISUAL INSPECTION OF
INDIVIDUAL TRANSFER SYSTEMS
Inspection Consideration
Notes
1. General ; " C ; . :.i
Determine whether the transfer system is also an individual drain
system. If the system is also an individual drain system follow
subpart RR.
Visually confirm that the transfer system has continuous hard-piping
with joints and seams between sections permanently or semi-
permanently sealed. Confirm that the system is enclosed and vented
through a closed-vent system to a control device.
Is there a pressure gauge? Is the internal pressure for the enclosure
maintained at a level less than atmospheric pressure? (Closed-vent
system and control device are designed and operated in accordance
with §63.693)
2, Cover and Closure Devices
Visually check that all covers and closure devices form a continuous
barrier over the entire surface area of the off-site material except for
openings at the inlet and outlet to the transfer system. (Inlet and
outlet openings shall be of minimum size).
Visually inspect covers and closure devices for cracks, holes, gaps,
or other open spaces between cover section joints or the interface of
the cover edge and its mounting. (When transfer system is buried
partially or entirely underground, inspection is required only for
those portions of the cover that extend to or above the ground).
Are covers closed and secured in the closed position except at inlet
and outlet openings to the transfer system with no visible cracks,
gaps, or other spaces in the closure device or between the perimeter
of the opening and the closure device?
What is the construction material of the cover and closure device?
Will it minimize exposure of off-site material?
Are covers maintained in the closed and sealed position when off-
site material is in the system except.when the opening is used for
waste sampling, removal, inspection, maintenance or.repait1?
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