_,     Tuesday
's     December 6, 1994
      Part IV
      40 CFR Part 9 et
      Hazardous Waste
      Disposal Facilities
      Generators; Orgai
      Standards for Tanks
      Impoundments,
      Rule
      Environmental
      Protection  Agency
  al:
  Treatment, Storage, and
  ; and Hazardous.Waste
 iinic" Air Emission
   i, Surface,•
and  Containers; Final

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62896  Federal'Register / Vol. 59, No.  233'/ Tuesday* December 6, 1994 /Rules and Regulations
ENVIRONMENTAL PROTECTION
AGENCY               '   .

40 CFR Parts 9,60,260,262,264,265,'
270,ancf271          •'   •-    .     .
PL-64-2-6807: FRL-S110-S]
R1N2060-AB94

Hazardous Waste Treatment, Storage,
and Disposal Facilities and Hazardous
Waste Generators; Organic Air
Emission Standards for Tanks, Surface
Impoundments, and Containers
AGENCY: Environmental Protection
Agency (EPA).
ACTION: Final rule.   	

SUMMABY: Under the authority of the -
Resource Conservation and Recovery
Act (RCRA), as amended, the EPA is
promulgating air standards that will
further reduce organic emissions from
hazardous waste management activities.
The air standards apply to owners and
oporators of hazardous waste treatment,
• storage, and disposal facilities (TSDF)
subject to RCRA subtitle C permitting
requirements and to certain hazardous
waste generators accumulating waste
on-site in RCRA permit-exempt tanks
and containers. Under these standards,
air emission controls must be used for
tanks, surface impoundments, and
containers in which hazardous waste is'
placed on or after June 5,1995 except
under certain conditions specifiedin
the rule. Air emission control
requirements are also added to the
RCRA permit term's and provisions •
specified for TSDF miscellaneous units.
In addition, this action establishes a
now EPA reference test method (Method
 25E) to determine the organic vapor
pressure of a waste.
 EFFECTIVE DATE: The final rule is
 effective as of June 5,1995. The EPA has
 specified in the final rule a schedule
 that establishes the compliance dates by
 which different requirements of the rule
 must be met. These compliance dates'
 and requirements are explained further
 under SUPPLEMENTARY INFORMATION.
   The incorporation by reference of
 certain publications listed in the
 regulations is approved by the Director
 of the Federal Register as of June 5,
 1995.
 ADDRESSES: Background information
 document. The background information
 document (BID) for the final rule may be
 obtained from the U.S. EPA Library
 (N-35), Research Triangle Park, North
 Carolina 27711, telephone (919) 541-
 2777.-Please refer to "Hazardous Waste
 Treatment, Storage, and Disposal
 Facilities (TSDF)—Background
 Information for Promulgated Organic
 Air EmissionjStandards for Tanks,
 Surface Impoundments, and
 Containers", EPA document number
 EPA^-453/R-94-076b.  .
   This document and the BID are also
 available on the EPA's Clean-up
 Information Bulletin Board (CLU-IN).
 To access CLU-IN with a modem of up.
 to 28,800 baud, dial (301) 589-8366.
 First-time users will be asked to input "
 some initial registration information..
 Next, select "D" (download) from the
 main menu. Input the file name
 "RCRAAIR1.ZIP" to download this
 notice. Input the file name
 "RCRAAIR2.ZIP" to download the BID.
 Follow the on-line instructions to
 complete the download. More •'
 information about the download
 procedure is located in Bulletin 104; to
 read this type "B 104" from the main
. menu. For additional help with these
 instructions, telephone the CLU-IN help
 line at (301) 589-8368.
   Docket. The supporting information •
 used for this nilemaking is available for
 public inspection and copying in the
 RCRA docket. The RCRA docket
 numbers pertainingjto this rulemaking
 are F-91-CESP-FFFFF, F-92-CESA-
. FFFFF, F-94-CESF-FFFFF, and.F-94-
 CE2A-FFFFF. The RCRA docket is
 located at the EPA RCRA Docket Office
 (5305) in room 2616 of the U.S.
• Environmental Protection Agency-, 401 •
 M Street SW, Washington, DC 20460.

 FOR FURTHER INFORMATION CONTACT:
 The RCRA Hotline, toll-free at (800)
 424-9346. For further information on
 the specific air standards and test  .
 method promulgated by this action,
 contact Ms. Michele Aston, Emission  •
 Standards Division (MD-13), Office of
 Air Quality Planning and Standards,  .
 U.S. Environmental Protection Agency,
 Research Triangle Park, North Carolina
 27711, telephone number (919) 541-
 2363.

 SUPPLEMENTARY INFORMATION: The
 information presented in this preamble
 is organized as follows:
 I. Compliance Dates
 II. Summary of Rule Changes Since Proposal
   A. TSDF Tanks, Surface Impoundments,
     and Containers
   P. TSDF Miscellaneous Units
   C. Generator 90-Day Tanks and Containers
   D. Other RCRA Regulatory Actions
   E. Test Methods
  in. Summary of Final Rule Impacts  •
   IV. Background
   A. Implementation of RCRA-Section
      3004(n) (                 .   , '
   B. Public Participation in Rulemaking
    C. Relationship to'Other RCRA Standards
   .D. Relationship tp CERGLA Standards
   E. Relationship to Clean Air Act Standards
'  F. Relationship to Nuclear Regulatory •  '  ,
    Commission Standards '     .
V. Basis for Final Rule     ' .  • •        •' i
  A. New Control Options                '
  B. Control Option Impacts
  C. Selection Rationale      .   .  .
•VI. Summary of Responses to Comments on
    Proposed Rule
  A. Development of Air Standards Under:   '
 •   RCRA     "".;
  B. Revised Impacts Analysis
• •. C. Container Air Standards  •
  D. Generator 90-Day Tanks and Containers
  E. Implementation of RCRA Air Standards
 " F. Waste Stabilization in Tanks
 VII. Requirements of Filial Rule
  A. TSDF Tank, Surface Impoundment, and
    Container Requirements  '
  B. TSDF Miscellaneous Unit Requirements
  C. 90-Day Tanks' and Containers'
    Requirements           •
  D. Amendments to Subparts AA and BB ,
     Standards        ,
 VIII. Implementation of Final Rule
  A. Existing Sources'
   B. New Sources          •  -  •     .
 .  C. State Authority           '     • _  '
 IX. Test Methods  .        '
   A. Method 25D
   B. Method 25E
 X. Administrative Requirements   .
 .  A. Paperwork Reduction Act
   B. Executive Order 12866 Review
   C. Regulatory Flexibility Act
   D. Docket   '
 XI. Legal Authority

' I. Compliance Dates
    The final rule promulgated today
 establishes additional air standards for
 TSDF owners and operators subject to
 40 CFR part 264 or 40 CFR part 265. In
 addition, this rule amends the
 conditions for hazardous waste
 generators accumulating waste on-site
 in RCRA permit-exempt tanks and
 containers pursuant to 40 CFR 262.34(a)
 to include air emission control
 requirements. All of these rule ,      >
 requirements are effective as of June 5,
 1995. All hazardous waste placed in the
 affected tanks, surface impoundments,
 containers, and other affected units on  '
 and after this date .must be managed in
 accordance with the requirements of the.
. final rule. This includes implementing
 the required air emission controls on an
 affected unit or performing the required
 waste determinations and recordkeeping
 to indicate that the affected unit is    ' :
 exempted, from these air emission
 control .requirements. Under
 circumstances'when the air emission
 control equipment required to comply
 with the rule canriot,be operational at an
 existing TSDF by June 5,1995, an
  implementation schedule for
 installation of the equipment must be
  developed and placed in the facility,  •
  operating records no later than June 5,
  1995. In such cases, the facility owner  •
' or operator must have all air emission   j.

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          Federal Register / Vol. 59, No. 233 /Tuesday, December  6, 1994 /i Rules and Regulations   62897
 controls required by the nnalrule in
 operation no later than December 8," ' -
••1997. ..      ,  i".  ':-,',.  .". '•  ";.    : ' .
   Today's .action amends 40 CFR 270.4
 to Require that owners and operators of
 TSDF for which a final permit has been
 issued by the EPA prior to June 5,1995
 must comply with the air emission
 controli requirements for interim-status
 TSDF under 40 CFR 265 subparts AA,
 BB, and CC until the facility's permit is
 reviewed or reissued by the EPA. The .
 EPA's rationale for adopting this   .
 implementation practice for today's
 rulemaking is explained in section VLB
 of this preamble.
   For tanks in which waste stabilization
. activities (sometimes referred to as
 waste fixation) are performed as of
 December 6,1994, be the effective date
 of the final rules will December 6,1995.
 As of the extended effective date for
 stabilization tanks, each TSDF owner or
 operator and each hazardous waste
 generator subject to the final rules must
 either install and operate the specified
 air emission control requirements on all
 affected tanks used for stabilization, or
• begin performing the specified waste
 determinations and recordkeeping to
 indicate that a stabilization tank is
 exempted from these requirements.   •
 Under circumstances  where required air
 emission control equipment cannot be
 operational on stabilization tanks by
 December 6,1995, an implementation
 schedule for installation of the required
 air emission controls must be developed
 and placed in the facility operating
 records1 no later than December 6,199"5.
   In such cases, for stabilization tanks,
 the facility must have all air emission
 controls required by the final rules in
 operation no later than June 8,1998.
 II. Summary of Rule Changes Since
 Proposal   ,
   The EPA proposed the rule on July 22,
 1991 (refer to 56 FR 33491). Based on
 public comments received by the EPA at
 proposal as well as the EPA's evaluation
 of additional information obtained after
 proposal, certain requirements of the
 rulemaking have been changed from
 those proposed. The. major changes
 affect provisions establishing the rule
 applicability, the procedures for
 determining the. average volatile organic
 concenitration of a waste, and the air
 emission control.requirements for
- containers..In.addition, the EPA has
 made many changes to the specific
 regulatory text to clarify the EPA's
. intent in the application and
 implementation of the rule
 requirements. The substantive changes
 to the rulemaking since proposal are
 summajrized-below. A summary of the
 requirements of.the rule as  promulgated
 .is presented in section VII of this  .,
 -preamble.              .

 'A. TSDF Tanks, Surface Impoundments,
 and Containers
   A.new subpart CC is added by today's
 action to both 40 CFR parts 264 and 265.
 Subpart GC under 40 CFR part 264
 applies to owners and operators of
 permitted TSDF while subpart CC under
 ,40 CFR part 265 applies to owners and
 operators of interim-status TSDF. All -
 changes since proposal to subpart CC in
 40 CFR part 264 and to subpart CC in  '''
 40 CFR part 265 are identical with the
/-exception of changes to the rule
 reporting requirements. There are ho -""
 reporting requirements under 40 CFR
 265 subpart CC for owners and
 operators of interim-status TSDF.
 Hereafter for convenience in this
 preamble, the term "subpart CC
 standards", is used collectively to refer
 to both subpart CC in 40 CFR part 264
 and subpart'CC in 40 CFR part 265.
   The compliance time for the subpart
 CC standards has been revised since  ,
 •proposal to allow up to an additional 30
 months after June 5,1995 to install  and  .
 begin operation of air emission control
 equipment required by the rule
 provided that the owner or operator
 develops and places in the facility
 operating-records by this date an     ;
 implementation schedule for          ,
 installation of the equipment.  ..  •  ";
 Compliance dates and implementation
 .requirements for thd final rule are
 explained in sections I and VIII of this
 preamble.       :
 1, Applicability               ' •
   The applicability of the subpart CC
 standards has been revised since    '
 proposal to specifically exempt from the
 rule certain tanks surface
..impoundments, and containers in
 which the.owner or operator has
 stopped adding hazardous waste. The
 subpart CC standards do not apply to a
 tank, surface impoundment, or
 container that meets either of the    :
 following conditions:
   (1) No hazardous waste is added to
 the waste management unit on or after '
 June 5,1995 (see generally 55 FR 39.409,
 September 27,1990); or
   ,f2) Addition to hazardous waste to the
 waste management unit is stopped and
 the owner or operator has begun  -"" • •
 implementing or completed closure
 pursuant to ah approved closure plan.
   In addition the applicability of the
 subpart CC standards has been changed
 such that the rule is not applicable to
 any container having a design capacity
 less than 0.1 m3 (approximately 26      •
 gallons) regardless of the organic    i  .
 content of the hazardous waste handled
 in the container. In response to    -  .
 comments on the proposed rule, the
 EPA reviewed the types of small
 containers commonly used to  .       t
 accumulate and transfer hazardous
 waste. Considering the small quantity of
 haz&rdous waste handled in a sample
 collection vial, safety "can, disposal cari,
, arid other types of small containers and
 the short periods of time that the waste
 normally remains in one of these
 containers, the EPA concluded that
 existing rules for containers having a
 design capacity less than 0.1 m3-are
 sufficient to protect human health and
 the^environment.   /,.         ,.-..-
   Finally, the EPA has decided to
 temporarily defer application of the
 subpart CC standards to tanks, surface
 impoundments, and containers
. managing hazardous wastes under
 certain special circumstances. For now,'
 theiEPA is deferring  application of-the
 subpart CC standards to waste
 management units that are used solely.
 to treat or store hazardous wastes  •
 generated on-site from remedial
 activities required under RCRA
 corrective action or CERCLA response
 authorities (or similar State remediation  ,
 authorities). Also, the EPA is deferring
 application of the subpart CC standards '
 to waste management units that are used
 solely to manage radioactive mixed
 wastes. The EPA's rationale for these
 deferrals is explained in section VIILA.1
"of this preamble.   •          •    .

 2. Cfeneral Standards

   Fpr each tank, surface impoundment,
 or c:ontainer to which the subpart CC .
 standards apply (referred to here as an
 "affected unit"), the  owner or operator
 is required to use the air emission
 con'trols specified in the rule except
 whipn the hazardous waste placed-in an
 affected unit meets certain conditions.
 As explained in the following
 paragraphs, the conditions under which
 an affected unit is exempted from the air
 emission control requirements of the
 subpart GC standards have been revised '
 since proposal. >           •
   d. Waste volatile organic       :.   "•. .
 concentration exemption. Under the
 final subpart CC standards, an affected
 unit is exempt from the air emission
 control requirements of the rule.if all
 haziardous waste placed in the unit is
 determined to have an average volatile
 organic concentration less than 100  ,
 parts per million by weight (ppmw).
 based on the organic composition of the •
 hazardous waste at the point .of waste.-.
 origination. This waste volatile organic
 concentration limit incorporates several
 revisions that have been made by the  : .
 EPA since proposal.         '

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 C2898   Federal Register / Vol. 59, No.  233 / Tuesday, "December 6, 1994 /Rules  and Regulations
   First, the format for the limit has been
 changed to be the average volatile -.
, organic concentration of the hazardous
 waste on a mass-weighted basis during
 normal operating conditions for the
 source or process generating the waste
 (hi contrast to the proposed format of
 the maximum volatile organic
 concentration for the hazardous waste
 never to be exceeded). Averaging
 periods up to 1 year in duration are
 allowed for each individual waste
 stream under the final rule. The
 procedures for determining the average
 volatile organic concentration of a waste
 are explained further under "Waste
 Determination Procedures" in this
 section and in section Vn.A.3 of this
 preamble.
   Second, determination of the volatile
 organic concentration of the waste
 under the final rule is based on the
 organic composition of the waste at the
 "point of waste origination" (instead of
 the "point of waste generation" as
 proposed). The "point of waste
 origination" is defined in the final rule
 with respect to the point where the
 TSDF owner or operator first has
 possession of a hazardous waste. When
 the TSDF owner or operator is the
 generator of the hazardous  waste,, the
 "point of waste origination" means the
 point where a solid waste produced by
 a system, process, or waste management
 unit is determined to be a hazardous
 waste as defined in 40 CFR part 261. In
 this case, this term is being used in a
 similar manner to the use of the term
 "point of generation" in waste
 operations air standards established
 under authority of the Clean Air Act in
 40 CFR parts (JO.61, and 63 of this
 chapter. When neither the TSDF owner
 nor operator is the generator of the
 hazardous waste, the "point of waste .
 origination" means the point where the
 owner or operator accepts delivery or
 takes possession of the hazardous waste.
   Finally, the EPA revised the impact
 analysis used for this mlemaking after
 proposal to incorporate additional TSDF
 industry data. An opportunity for public
 comment on this analysis was provided
 by the EPA (refer to sections ni.B and
 VLB of this preamble). Based on the
 revised analysis results, the EPA
 selected a new value for the volatile
 organic concentration limit Section V.C
 of this preamble presents the rationale
 for the selection of the control option
 'used as the basis for the final rule.
   i. Treated hazardous waste
 exemption. Under the subpart CC
 standards, each affected tank, surface
 impoundment, and container that
 manages hazardous waste having an
 average volatile organic concentration
 equal to or greater than 100 ppmw, as
 determined by the procedures specified
•in the rule, is required to. use air
 emission controls in accordance with
 the rule requirements. The owner or
 operator must install and operate the
 specified air emission controls on every
 affected tank, surface  impoundment,
 and container used in the waste
 management sequence from the point of
 waste origination (as applies to the
 specific hazardous waste stream)
 through the point where the organics in
 the waste are removed or destroyed by .  '
 a process in accordance with the .
 requirements of the rule. If a particular
 hazardous waste is not treated to meet
 these requirements, then all affected
 units at the TSDF used in the waste
. management sequence for this
 hazardous waste are required to Use the
 air emission controls specified by the
 subpart CC standards.
   If the hazardous waste is treated to
 remove or destroy the organics in the
 waste by a process that meets or exceeds
 a minimum level of. performance as  "
 specified in the rule, then affected units
 at the TSDF operated downstream of the
, treatment process in the waste
 management sequence for this
 hazardous waste are not required to use '.
 the air emission controls specified by
 the subpart CC standards. It is important
 to emphasize that tanks, surface
 impoundments, and containers (subject
 to the rule) in which the treatment
 process is conducted  are .required to use
 the applicable air emission controls
 specified by the subpart CC standards
 with the exception of certain tanks and
 surface impoundments used for active   .
 biological treatment of hazardous-waste
 and achieving the performance
 requirements specified in the rule (this
 exception is explained further in section
 Vn.A.4 of this preamble).
   "The conditions under which a treated
 hazardous waste no longer is required to
 be managed hi affected units using air
 emission controls under the subpart CC
 standards have been revised and
 expanded since proposal to include
 many alternatives from which an .owner
 or operator can choose one with which
 to comply. The final subpart CC
 standards allow an owner or operator to
 use any type of treatment process that
 can continuously achieve one of the
 specified sets of performance  •
 conditions. These conditions have been
 changed to include:
   (1) The average volatile organic
 concentration of the hazardous waste
 exiting the process is less than 100
 ppmw (except for certain site-specific  •
 situations where multiple hazardous
 waste streams are treated by a single
 process hi which case a volatile organic-
 concentration limit for the waste exiting
the process is established by the rule
procedures at a yalue lower than 100
ppmw);           .     '      '•'   •
  (2) The organic reduction efficiency
for a process treating multiple
hazardous waste streams is equal to or  ..
greater than 95 percent, and the average
volatile organic concentration of the
hazardous waste exiting the treatment
process is less than 50 ppmw; or
  (3) The actual organic mass removal.
rate for the process-is greater than the
required mass removal rate established
for the process. The alternative     .
treatment process performance ,
requirements specified in the final.
subpart CC standards are discussed
further in section VII. A.2 of this
. preamble.
  The proposed explicit exemption for
hazardous wastes complying with the
land disposal restriction (LDR)
treatment standards is not included in
the final subpart CC standards. The EPA
concluded that the expanded number of
alternatives for treated hazardous waste
and other provisions added to the final
rule provide a reasonable regulatory
mechanism by which a TSDF owner or
operator can determine whether a
hazardous waste complying with the •
LDR treatment standards is exempted
from being managed in accordance with
the air emission control requirements- of
the subpart CC standards.
3. Waste Determination Procedures-
  As already noted, the procedures that
a TSDF owner or operator may use to
determine the volatile organic
concentration of a hazardous waste.have
been revised for the final subpart CC
standards. For a case when direct
measurement is chosen for determining
the volatile organic concentration of a
hazardous waste, the proposed
statistical calculation procedure using
Method 25D results is not included in
the  final subpart CC standards. Instead,
procedures are specified in the final rule
to compute the mass-weighted average
volatile organic concentration of a
hazardous waste using Method 25D
results'for waste generated as part of a
 continuous process and for waste,.
generated as part of a batch process.
Under circumstances when the same
batch process is performed repeatedly
• but not necessarily continuously, the
 final rule allows the owner or operator
to determine the average volatile organic
 concentration of the waste from this
 process by averaging results for one or
 more representative waste batches
 generated.by the process. In all cases, a
 sufficient number of waste samples for
 analysis (with a minimum of four
 samples) must be collected to be'
 representative of the normal range of the

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          Federal Register /Vol. 59, No. 233 / Tuesday. December-6. 1994 / Rules and Hegulatkms
 operating conditions for the source or
 process generating the hazardous waste.
 Normal operating conditions .for the
 source or process generating the waste
 include cyclic process operations such
 as startup and shutdown* Process
 malfunctions, maintenance activities, or
 equipment cleaning are not considered
 to_be normal operating-conditions for.
 the piiirpose of determining the average
 volatile organic concentration of a
 waste;. These waste determination
 procedures are discussed further in
 section VII.A.3 of this preamble.
,   The proposed explicit requirements
 for determining the volatile organic
 concentration of a hazardous waste
• using information in a waste
 certification notice prepared by the
 waste| generator are not included in the
 final rule. Instead, for hazardous waste
 that is not generated by the TSDF owner
 or operator (i.e., waste shipped to the
 TSDFJ from off-site sources under
 different ownership), the;fihal rule
 allows the TSDF owner or operator to
 determine the waste volatile organic
 concentration by either testing the waste
 when he or she accepts jdelivery of the
 hazardous waste or using appropriate
 information about the waste  •  •.' _
 composition that is prepared by the
 generator of the waste. The generator
 prepared information can be included in
 manifests, shipping papers, or waste
 certification notices accompanying the
 waste shipment, as agreed upon
 between the waste generator and the
 TSDF owner or operator.
      i •            '  -'
 4. Tank Standards

    Several changes to the tank standards
 have ibeen made since proposal. An
 exemption from .the tank standards has
 beeh;added for those affected tanks used
 for biological treatment of a hazardous
1 waste in accordance with requirements
 specified in the rule. Changes have been
 made to clarify the regulatory text
 regarding the tank cover design and
 operating requirements. Also, the
 .conditions have been^elarified that must
 be met for a particular tank to Use a
 fixed-roof type coyer without any
 additional controls in accordance with
 the subpart CC standards. Finally,
 provisions have been added to the, rule
 to address those special situations in
 which emergency venting of the tank or,
 the air emission controls installed on
 the tank is necessary forsafety.

  5. Surface Impoundment Standards

    Changes to the surface impoundments
  standards have been made to be
  consistent with Jthe changes to the tank-
  standards as applicable.
6. Container Standards
  Several changes have been made to
the container standards since proposal •
in addition to limiting the applicability
of the subpart CC standards to
containers having a design capacity
equal to or greater than 0.1 m3. The air
emission control requirements for
affected containers have been revised to
provide several air emission control
alternatives from which an owner or   ;  .
operator may choose one with which to
comply. For containers having a design
capacity less than or equal to'0.46 m3 •
(approximately 119 gallons), an owner  ,
or operatormay place'the hazardous
waste in drums that meet U.S.       ;
Department of Transportation (DOT)
specifications under 49 CFR part 178
without any additional testing,
inspection, or monitoring requirements.
An owner or operator is also allowed
under the final rule to place the
hazardous waste in tank trucks and tank
railcars that are annually demonstrated ;
to be vapor tight using Method 27 in 40
CFR part 60, appendix A without any
additional testing, inspection, or
monitoring requirements.
  The requirements for waste transfer
operations for containers have been
revised underthe final subpart CC
standards! Submerged-fill of hazardous
waste that is loaded into containers by '
pumping is required only when
transferring the waste into containers
having a design capacity greater than
0.46 m3. Submerged fill of the waste is
not required wheri filling smaller size
containers such as 55-gallon drums.   .
   The air emission control requirements
for owners and operators treating
hazardous waste in open containers
have been revised. Whenever it is    .
necessary for the container to be open
' during the treatment process, the
container is required to be located in an
enclosure connected to a closed-vent
 system with an operating organic
 emission control device. The final
 subpart CC standards include specific
 enclosure design and operation   .  '<
 requirements which allow the enclosure
 to have permanent openings for worker
 access.
   Finally, the container standards have
 been revised to be consistent with the
 safety venting provisions added to the
 tank and surface impoundment
 standards.
 7. Closed-Vent System arid Control
 Device Standards
           <^_.
   The design and operating
 requirements for closed-vent systems
 and control devices have been changed
 to be consistent with those requirements
 already applicable to TSDF owners and
operators under subpart AA in 40 CFR
psjrts 264 and 265. The subpart AA
standards have been in effect since 1990
arid establish ,RCRA air standards to    ;  '
control organic emissions from process"  .
veoits on certain types of hazardous
waste treatment units.         '
8.| Inspection and Monitoring    .
.Requirements'  "•".,•-••      ,
  The inspection and monitoring
requirements under the subpart CC
standards have been revised since
proposal. The requirements for:
inspection and monitoring of closed-
vent systems and control devices have  '
been changed to be identical to the
inspection and monitoring requirements
under subpart AA in 40 CFR parts 264
and 265. The required interval for the
visual inspection of covers installed on .
tcbks,' surface impoundments, and
•obtain containers has been changed to
o:nce every 6 nibnths. After the initial
cipver inspection and monitoring.for  ,  -  ;
detectable organic emissions is  '
completed, the owner or operator is  :
oply required to inspect and monitor
tl;iose cover openings that have been
opened (i.e., have not continuously
remained in a closed, sealed position)
siince the last visual inspection and
monitoring. Special inspection and
monitoring provisions have been added
 for cover fittings that are unsafe or
difficult, as defined in the rule, for
 facility personnel to inspect and •
 monitor.
  ' The subpart CC standards have been
 changed to allow leak repair on tank
 and surface impoundment covers to be
 delayed beyond 15 calendar days if both
 oif the following conditions occur: (1)
 Repair of the leak, requires first
 emptying the contents of the tank or   .
 surface impoundment;'and (2)
 temporary removal of the tank or surface,
 impoundment from  service will result
 in the unscheduled cessation of
 production from the. process unit,  or
 operation of the waste management
 liriit, that is generating the hazardous
 waste managed in the tank or surface
 impoundment. Repair of a leak must be
 performed at the next time the process,
 system, or waste management unit that
 iis generating the hazardous waste
 managed in the tank or surface
 impoundment stops operation for any .
 reason.       .      ••..-•'
 9.. Recordkeeping Requirements
  :  The subpart CC standards have been
 cphanged to require cover design
, documentation only for floating roof-
! type tank covers, surface impoundment
 covers, and enclosures used for control
 of air emissions from containers. Also,  .
 lie recordkeeping requirements have

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 '                       '        "               ' -        --.••.-.       ••-/-,-.
  62900  Federal Register'/ Vol. 59, No. 233 / Tuesday, December 6, 1994  /  Rules and Regulations
  been revised as appropriate to address
  the changes to the final rule, described
  previously in this section of the
  preamble.             "  '
  10. Reporting Requirements
    The reporting requirements in the
  subpart CC standards are the-same as
  proposed with one exception. The time
  interval within which TSDF owners and
  operators subject to the subpart CC
  standards under 40 CFR part 264 must
  report to the Regional Administrator all
  circumstances resulting in
  noncompliance with the applicable
  conditions has been changed to within
  15 calendar days of the time that an
  owner or operator becomes aware of the
  circumstances.
  B. TSDF Miscellaneous Units
    Today's action amends 40 CFR
  264.601 by adding to the permit terms.
  and provisions required for RCRA
  permitting of a miscellaneous unit the
  appropriate air emission control
  requirements in 40 CFR part 264,
  Bubparts AA, BB, and CC. This
  amendment is the same as proposed.  .
  C. Generator 90-Day Tante and
  Containers
    The conditions with which a
  hazardous waste generator must
  comply, pursuant to 40  CFR 262.34(a),
  to exempt tanks and containers
  accumulating hazardous waste on-site
 , for no more than 90 days from the RCRA
  subtitle C permitting requirements are
  amended by today's action to include
  compliance with the air emission
  control requirements of 40 CFR part
  265, subparts AA, BB, and CC. This
  amendment is the same as proposed.
  D. Other RCRA Regulatory Actions
    The EPA proposed several
  amendments to existing RCRA air  ^
 < standards. One amendment proposed
  adding requirements for the
  management of spent carbon removed
  from a carbon adsorption system to the
  closed-vent system and control device
  standards under 40 CFR part 264,
  subparts AA and BB, and 40 CFR part
  265, subparts AA and BB. The final ,
  amendment has been revised to allow
  the owner or operator the additional
  option of burning the spent carbon in a
  boiler or industrial furnace that is
  permitted under subpart H of 40 CFR
  part 266. A second amendment
  promulgated today updates the leak
  detection monitoring provisions under
  40 CFR part 264, subparts AA and  BB,
  and 40 CFR part 265, subparts AA  and
  BB for closed-vent systems to be
  consistent with other air standards
 recently promulgated by the EPA. Under
 -this amendment, annual leak detection
 monitoring is not required for those   •
• closed-vent system components which
 .continuously operate in vacuum service
 or those cjosed-vent system joints,
 seams, or other connections that are
 permanently or semi-permanently
• sealed (e.g., -a welded joint between two
 sections of metal pipe, a bolted and •
 gasketed pipe flange).        .        ..

 E: Test Methods   '_"
   As part of this rulemaking, the EPA •
 proposed two new reference test      .
 methods (Method 25D and Method 25E)
 to be added to 40 CFR part 60,
 Appendix A., Method 25D is a test
 method for the determination of the
 volatile organic concentration of waste
 materials. Since proposal, the EPA
 decided it is also appropriate to use
 method 25D to implement other EPA air
 standards being developed under
 authority of the Clean Air Act. The
 promulgation of some of these other air
 standards prior to today's action
 required the EPA to promulgate Method
 25D in a separate rulemaking (refer to 59
 FR 19402, April 22,1994). Comments
 and responses relevant to'Method 25D
 for this rulemaking are in the BID for the
 final rule and in the dockets pertaining
 to this rulemaking.
   Method 25E is being promulgated
 today. Method 25E is the test method for
 determining the organic vapor pressure
 of wastes. The sampling requirements
 for Method 25E have been revised since
 proposal to provide for sampling of the
 waste in a tank.

 III. Summary of Final Rule Impacts
   The EPA estimates that
 implementation.of the subpart CC
 standards will reduce nationwide
 organic emissions from TSDF tanks,
 surface impoundments, and Containers
 by-approximately 970,000 Mg/yr. In
 addition, the EPA estimates that
 nationwide organic emissions from  90-
 day tanks and containers will be
 reduced by approximately, 73,000 Mg/
 yr-        '-""'].'
  /Control of organic air emissions
addresses many air quality problems
 including ambient ozone formation,
 adverse human health effects from'
 inhalation of air toxics, and, to a lesser
 extent, depletion of stratospheric ozone.
Ambient ozone concentrations exceed
the National Ambient Air Quality
 Standards (NAAQS) in many
metropolitan areas throughout the
United States. Thus, the rule-
promulgated today will contribute to
progress in attaining the NAAQS for
ozone in nonattainment areas and also
in preventing significant deterioration of
the air quality in those areas of the   '•
  United States currently in attainment
  with the NAAQS for ozone.
   Today's action will also significantly.
,  reduce the risk to the public-of. •
  contracting cancer posed by exposure to
  toxic constituents contained in the
  organic emissions from hazardous waste
  management activities. The cancer risk
  to the entire exposed population
  nationwide (i.e., annual cancer
  incidence) .from exposure to organic
  emissions from TSDF is estimated by
  the EPA to be reduced from
  approximately 48 cases-per year to a
  level of 2 cases per year. Annual cancer •-
  incidence as a result of exposure to
  organic emissions-from 90-day^tanks
  and containers is estimated by the EPA •
,  to be reduced from approximately four
  cases per year to less than one. case per
  year.'
   Maximum individual  risk (MIR) is a
  measure of the added probability  of a
  person contracting cancer if'exposed
  continuously over a 70-year period to
  the highest annual average ambient
  concentration of the air toxics-emitted
  from a TSDF site. There are ..
  approximately 2,300 TSDF locations in
  the United States. The MIR for all but
  approximately 20 of these facilities is
  estimated by the EPA to be reduced by  ,
  implementation of the subpart CC
  standards to-a level that is less than 1
  x 10~4. The target MIR levels historically
  used by the EPA for other promulgated
  RCRA standards range from 1 x 10-4 to   .
  1 x lO-6. Because the MIR values for a
  few TSDF are estimated-to remain
  higher than the historical RCRA taiget,
  the EPA is continuing to evaluate  the
  waste management practices and'the
  individual chemical compounds
  composing the organic emissions at
  these TSDF. Following this evaluation.
  the EPA will determine what other
  actions are necessary to attain the
  health-based goals of RCRA section
  3004(n). The omnibus permitting
  authority in section 3005(c)(3) can be  '
  invoked to supplement or add to the
  requirements in today's rule, should the
  rule be determined to be insufficient to
  assure protection of human health arid
  the environment at a particular facility..
   The total nationwide capital  .
 investment cost to TSDF owners and
  operators to implement the subpart CC
  standards is estimated by the EPA to be
  approximately $290 million. The total
  nationwide annual cost for these
  standards is estimated to be
  approximately $110 million per year.
 The total nationwide capital costs to
 hazardous waste generators of installing
 the required air emission controls  on 90-
  day tanks and containers is estimated by J
 the EPA to be approximately $23
 million. Total nationwide annual cost
\

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          Federal Register 7  Vol.  59, No. 233 /^ Tuesday^ December 6. 1994 / Rules frnd Regulations   62001
• for the 90-day tank and container .
 controls is estimated to be   .^ '   " /.
 approximately $7. million.   T
   The JEPA concludes that the rule
 promulgated today will not have a
 significant economic impact on
 hazardous waste generators or TSDF   •
 owners and operators. Prices for
 commercial hazardous waste
 management services are estimated by
 the EPA to increase by less than 1
 .percent on a nationwide anhualized  *
 bastsrThe quantity of hazardous waste
 handled by .commercial hazardous   "'
 waste management companies is
 projected to be reduced by less than. 1
 percent on a nationwide annualized
 basis. Few, if any, facility closures are
 anticipated. Job losses inthe hazardous
 waste.industry are estimated to be less
 than 1J5 percent. Furthermore, this
 impact on employment does not reflect
 positive employment effects on   .
 industries producing the air emission
 control equipment that will be used to
 comply with, the rule. No significant
 impacits are expected on small
 businesses.                       .•
 IV.Backgroand
 A. Implementation of RCRA Section  .
    The; Hazardous and Solid Waste
  Amendments of 1984 added section
  3004(n) to RCRA. Section 3Q04(n)
  directs the EPA to promulgate
  regulations for the monitoring and '  ,
  control of air emissions from TSDE.as
  may be necessary to protect human-
  .health!SIi^ toe environment. The EPA
  completed the first phase of its
  regula'tory development program to
  implement this Congressional directive
  with the promulgation of RCRA air
  standards that control organic emissions
  ventecl firom certain hazardous waste
  treatment processes (i.e., distillation,
  fractionation, thin-film evaporation,
  solveiit extraction, steam stripping, and
  air stripping) as well as from leaks in
  certain ancillary equipment used for
  hazardous waste management processes
 - (55-FR 25454, June 21,1990). Today's
  action' completes the second .phase of
  the EISA's regulatory development
  program with the promulgation of RCRA
 . air standards for tanks, surface
  impoundments, containers, and
  miscellaneous units operated at TSDF."
  This rulemaking also adds air emission
  control requirements for certain  •
  hazardous waste generators
  accumulating waste on-site in RCRA  . v
  permit-exempt tanks and containers.
    As described at proposal (56 FR
  33496, July 22,1991), the EPA .decided
  in both the first and second phases to
  develop standards that control organic
 emissions as a class (as opposed to
 cdnstituent-by-constituent).
 Implementation of these nationwide
 . standards will achieve significant
 organic emission and cancer risk
 reductions. However, the EPA estimates
 the cancer risk at a few TSDF after
 implementation of these nationwide
 standards to remain: at a-level that is
 higher than the range of target risk
 levels for other promulgated, RCRA
 standards (refer to section V.C of this '
 preamble.) The third phase of this  -
 regulatory development program is to
 determine what other actions are
 necessary to attain the health-based
 goals of RCRA section 3004(n).'To make"
 this determination,  the EPA is •   ..  •
 evaluating hazardous waste operations
 at those individual  TSDF estimated to
 have MIR values greater thaJi the
 historical RCRA target MIR levels.

 B. Public Participation in Rulemaking
   T&e EPA is promulgating today's final
 rule after careful consideration of public
 comments on the proposed rule (56 FR •
 33491, July 22,1991). The preamble to
 the proposed rule discussed the
. availability of the background
 'information document (BID) pertaining
 to the health effects of organic emissions
 from hazardous waste TSDF using ,
 tanks, surface impoundments, and
 containers. The EPA mailed copies of
 the Federal Register notice and the BID.
 . for the proposed rule to industry
 representatives, environmental groups,
 and State and Federal agencies.'
    The EPA solicited comments from the
 public at the time of proposal and
 provided a 90-day comment period,
 from July 22,1991  to October 21,1991,
 for the public to prepare and submit
 written comments on the proposed rule.
 In addition, the EPA provided the
 opportunity for a public hearing to
 allow interested persons to present oral
 comments to the EPA concerning the
 proposed rule. However, no one
 requested that the EPA hold a public
 hearing on the proposed rule. The EPA
  did receive written comments from
 more than 80 companies, industrial.
 trade associations, environmental
  groups, and State and Federal agencies.
 The BID for the final.rule summarizes
  all of the comments, on the proposed
 •'rule and presents the EPA's response to
  each of the comments. Section VI of this
  preamble presents responses to selected
  major comments.
    Following the EPA's review of public
  comments received on the proposed
  rule, the EPA revised the impact
  analysis .used for its final determination.
  regardingloday's rulemaking. This •
  analysis used additional TSDF industry
  data obtained by the EPA. The EPA
provided an opportunity for public
comment on the additional TSDF
industry data used for the impact
modeling revisions. A Federal Register
Notice of Data Availability (57 FR
43171, September 18,1992) listed these
additional data. The EPA also made the
da! a available for public inspection at
thei EPA RCRA Docket Office. A; 30-day
comment period, from September 18,
19!32 to October 19; 1992, provided the
public the opportunity to comment on
the; additional data. The EPA received
cojnments on the additional data from
'. onp industrial trade association. Section
VLB of this preamble presents a
suibmary of these comments..    ,   ,

 C. Relationship to Other RCRA,
 Sttmdards                          ,'
. - • '! -
 1. RCRA Rules for JTSDF Owners and
 Operators
   Today's action establishes organic air
 eniission control requirements for TSDF .
 tanks, surface impoundments, and     '.'.
 certain containers. Other types  of waste
 mibiagement units operated at TSDF
 may be subject to these air emission
 control requirements as follows.
 ,  a. Miscellaneous units. Under RCRA
 in |40 CFR 260.10, the EPA defines a
 "miscellaneous unit" as a hazardous
 waste management unit'where.waste is
 treated, stored, or disposed of that is not •
,a rontainef, tank, surface impoundment,
 wiistepile, land treatment unit,  landfill,
' incinerator, boiler, industrial-furnace,  •
 •Underground injection well with
 appropriate technical standards under
 4Cf CFR part 146, or a unit eligible for
 a research, development, and-        '
' demonstration permit under 40 CFR
 27J0.65. The EPA has established
 provisions under 40 CFR part 264,"
 subpart X to allow TSDF owners and
 operators to obtain permits to operate
 miscellaneous units. The EPA permits
 miscellaneous units on a case-by-case
 .basis with terms and provisions as,
 needed to protect public health and the
  environment through generic .
 performance standards specified in 40
 CFR 264.601.
   JToday's rule amends § 264.601 to
  state that the air emission controls
  rejquired by the standards under 40 CFR
  2li4 subparts AA, BB, and CC are among
  tfcie'"appropriate" controls a permit  '  '
  writer may require for a miscellaneous
  unit "to ensure.protection of human
  health and the environment."  •
  Applicability of today's rule to
  miscellaneous units is discussed further
  ill Section VH.B of this preamble,
   \.b. Land disposal restrictions. The
  RCRA LDR treatment standards under
  40, CFR part 268 require TSDF owners
  ailid operators to treat hazardous waste
 -- , -. -  *        •.•.,.     •  • .  -  -

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 62902  Federal Register / Vol. 59, No. 233  /  Tuesday, December 6, 1994 / Rules and Regulations
 to reduce the toxidty or mobility of
 specific constituents in the waste before
; the TSDP owner or operator can place
' tho waste in a land disposal unit. Under
• certain conditions, the EPA may grant a
 TSDF owner or operator permission to
 land dispose a hazardous waste that
 does not meet the LDR treatment
 standards in a particular land treatment
 unit, landfill, wastepile, or surface
 impoundment. This action is referred to
 as the "no migration" variance. To
 obtain a "no migration" variance, a
 TSDF owner or operator must -
 demonstrate in a petition to the EPA  •
 that, with a reasonable degree of
 certainty, there will be no migration of
 hazardous constituents from the
 disposal unit for as long as the waste
 remains hazardous.
   On August 11,1992, the EPA
 proposed its interpretation of the term
 "no migration", the procedures and
 substantive requirements for submitting
 to the EPA a petition to demonstrate "no
 migration" from a land disposal unit,
 and the EPA's criteria for evaluating the
 petitions (57 FR 35940). This proposal
 Includes amending 40 CFR 268.6 to add
 as a condition for receiving a no
 migration variance that the applicant
 demonstrate that the subject land
 disposal unit complies with the
 applicable air emission standards the
 EPA has developed under 40 CFR parts
 264 and 265.
  'c. Corrective action requirements. The
 EPA is temporarily deferring
 applicability of the subpart CC. ~
 standards to any tank, surface
 impoundment, or container which is
 used solely for on-site treatment or
 storage of hazardous waste that is
 generated as the result of implementing
 remedial activities required under the
 RCRA corrective action authorities of
 3004(u), 3004(v) or. 3008(h). The EPA's
 rationale for this temporary deferral is
 explained in section VII.A.1 of this,
 preamble.
 2. RCRA Rules for Hazardous Waste
 Generators
   Hazardous waste generators who
 accumulate waste on-site in containers
 or tanks for short periods of time can  .
 elect to be exempted  from'RCRA subtitle
 C permitting requirements provided that
 a generator complies with provisions
 specified in 40 CFR 262.34. The EPA
 allows a generator who generates 1,000
 kilograms or more of hazardous, waste
 per month to accumulate the hazardous
 waste on-site for up to 90 days in tanks
 and containers without a permit
 provided the generator complies with
 certain conditions specified in 40 CFR
 262.34(a). These conditions include
 compliance with the requirements of 40
 CFR part 265, subpart I when the waste
 is accumulated in a container and 40
 CFR part 265, subpart J when the waste
 is accumulate in a tank. Tanks and
 containers used to accumulate
 hazardous waste on-site for 90 days or
 less pursuant to the conditions of 40
 CFR 262.34(a) are hereafter referred to
 in this preamble as "90-day tanks and'
 containers." ;
   The rule promulgated today only
 amends the RGRA permit exemption
 requirements for generators operating  •
 90-day tanks .and containers. This action
 does not affect the existing RCRA permit
 exemption requirements for generators
 operating tanks and containers for on- -
 site accumulation of hazardous waste in
 accordance with the provisions of 40
 CFR 262.34 (d) or (e). Applicability of
 today's rule to 90-day tanks and
 containers is discussed, further in
 Section VI.D of this preamble.
 3. RCRA Rules for Hazardous Waste
 Transporters           ,   •          -
   Regulations in 40 CFR part 263
 establish standards that apply to
 persons transporting hazardous waste
 within the United States if the
 transportation requires a-manifest under
 40 CFR part 262. Today's action does
 not change the RCRA rules under 40
 CFR part 2,63. However, the^air
 standards promulgated today may
 indirectly affect transporters accepting
 certain organic-containing hazardous
 wastes' from TSDF owners .and
 operators. The final subpart CC
 standards require that TSDF owners and
' operators only load these hazardous
 wastes into containers (including tank
 truck, railcars, and roll-off boxes) that
 use air emission controls as specified in
 the'rule. Consequently, to continue
 accepting hazardous waste from a TSDF
 owner or operator, in some cases,
 transporters may need to ensure that
 their containers meet the subpart CC
 standards.

 D. Relationship  to CERCLA Standards
   The Comprehensive Environmental
 Response, Compensation, and Liability
 Act (CERCLA), authorizes the EPA to
 undertake removal and remedial actions
 to clean up hazardous substance
 releases. Under CERCLA, on-site
 remedial actions are required to comply
 with the requirement of Federal and
 more  stringent State environmental laws
 that are applicable or relevant and
 appropriate (ARAR) to the, remedial
 action unless certain statutory waivers
 apply. In addition, the National Oil and
 Hazardous Substances Contingency Plan
 (NCP) provides that removal actions
 shall attain ARAR to the extent
 practicable considering the exigencies !of
 the situation. [4Q:CFR 300.415(i)].:As
 explained in section 'VII. A.I,of this '.!  ;.
 preamble, the'EPA has decided to
 temporarily defer application of the
 subpart CC standards to tanks,
 containers and surface impoundments
 which are being used to treat or store   .
 hazardous wastes containing organics
' generated on-site from remedial     ''". •
 .activities required under RCRA
 corrective action or CERCLA response
 authorities, or similar State remediation
 authorities, provided that the wastes are.
i managed in units that do not also
 manage other hazardous waste
 containing organics. However, after the  .
 temporary deferral has been lifted,
 today's rules may be considered an
 ARAR for certain types of remedial and '
 removal actions.
   A requirement undera Federal or '
 State environmental law may be either
 "applicable" or "relevant and
 appropriate," but not both, to a remedial
 or removal action conducted at a
 CERCLA site. An ARAR is identified on
 a site-specific basis in a two-part
, analysis that considers first, whether a '
 .given requirement is applicable; then, if
 it is not applicable, whether it is
 nevertheless both relevant and
 appropriate.  "Applicable" requirements
 as defined in the NCP are those that
 specifically address a hazardous
 substance, pollutant, contaminant, •
 remedial action, location, or other
 circumstances found at a CERCLA site.
 [40 CFR 300.415(1)]. "Relevant and
 appropriate" requirements are those,
 that, while not "applicable" at a
 CERCLA site; address problems or
 situations sufficiently .similar to those
 encountered at the CERCLA site that
 their use is well suited tothe particular .
 site. [40 CFR 300.415(i)].
   Some'waste management activities
 used for remedial and removal actions '
 of hazardous organic substances require
 the use of.tanks, surface impoundments,
 . and containers. For example, a TSDF  '
 may treat hazardous organic liquids and
 surface water contaminated with  .
 hazardous organic waste on site using
 destruction, detoxification, or organi.c
 removal processes that occur in tanks or
 surface impoundments. The facility may
 perform on-site solvent washing of soils
 contaminated with hazardous organic
 sludges in a tank or container. At a      .
 TSDF, hazardous waste in leaking
 drums may be repacked in new   ,
 containers for treatment and disposal at
 another site.
w..  Once today's deferral is lifted,'the air
 emission control requirements of tHe.
 subpart CC standards are likely to be
 "applicable" to on-site remedial and
 removal actions that use tanks, surface
 impoundments,.and containers to

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          Federal Register  / .Vol. 59, No. 233 / Tuesday, December 6, 1994 /.Rules and Regulations   629O3
 manage substances exhibiting
 characteristics or listed under RCRA as
 hazardous waste and having an average
 volatile organic concentration equal to
' or greater than '100 ppmw. In'other
 cases, the {standards may be "relevant
 and appropriate"; this determination
 must be made on a site specific basis.
   On the other hand, the subpart CC
 standards'do hot specify control
 requirements for wastepiles, landfills,
 and land treatment units that manage
 hazardous wastes at TSDF. Therefore,
 the standards are not likely to be
 "applicable" to excavation, capping of
 wastes, land treatment, land fanning, in
 situ treatment activities, and other
 activities involving wastepiles and
 landfills a!t CERCLA sites.. Although in
 most cases the EPA does not expect the
 subpart C(3 standards to be "relevant
 and appropriate" to these types of units
 at CERCLA sites, remedial and removal
• actions performed in wastepiles may in
 some cases be similar in nature and
 scale to the waste management activities
 performed in surface impoundments;
 and waste stabilization may involve the
 basic process and air emission
 mechanism regardless of whether the
 mixing of j the waste and binder is
 conducted in a tank, surface
 impoundinent, container, wastepile,
 landfill, or land treatment unit: Thus, in
 some cases the subpart CC standards
 may be "relevant and appropriate" for
 such actions; this determination must be
 made on a site specific basis.  '_

 E. Relationship to Clean Air Act
 Standards
   Section^ 112 of the Clean Air Act
 (CAA) regulates stationary sources of
 hazardous air pollutants (HAP). This
 section was comprehensively amended
 under Title III of the 1990 Amendments
 to the CAA. Under the amended CAA
 section Il2(b), Congress listed 189
 chemicals, compounds, or groups of
 chemicals as HAP. The EPA is directed
 by the CAA to regulate HAP emissions,
 from stationary Sources by establishing
 national emission standards for
 hazardous air pollutants (NESHAP).
   The 1990 Amendments to the CAA
 required iShe EPA to develop and
 publish a! list of source categories that
 emit HAP for which NESHAP will be
 developed. The EPA published its
 initial list of NESHAP source categories
 on July 16,1992 (refer to 57 FR 31576).
 Many industrial sectors that may
 manage hazardous wastes are listed as
 specific IslESHAP squrce categories.
 Consequently, facilities at which
 hazardous wastes are managed may be
 subject tci both NESHAP and the RCRA,
 air standards under 40 CFR part 264 and
 265. At these facilities,, some waste
management units would be subject -to •
either air emission control requirements
under the NESHAP or the air emission
control requirements under-the RCRA
air.standards. However, in certain
situations, 'some waste management
units would be subject to air emission
control requirements under both sets of
rules.'              .             -   •
  The'CAA requires that the  . •'
requirements of standards developed
under the Act be consistent, but avoid  .
duplication, with requirements of
standards developed under RCRA.
Consequently, the EPA is taking into
account the air standards promulgated
under RCRA section 3004(n) in
determining the requirements for
NESHAP affecting air emission sources
at which hazardous waste could be
managed.        '

F. Relationship to Nuclear Regulatory
-Commission Standards
.  Radioactive mixed wastes are-wastes
that contain radioactive materials as
well as materials listed or identified as
hazardous under RCRA. Radioactive
mixed wastes must be managed in
accordance with RCRA regulations, in
addition, these wastes also are subject to
standards administered by the Nuclear
Regulatory Commission (NRC) under  -
the Atomic Energy Act and Nuclear
Waste Policy Act of 1982 that address
the safe handling and disposal of
radioactive waste.
  The EPA has previously stated its   -
general position that the management of
radioactive mixed waste at TSDF is
subject to regulation under subtitle C of
RCRA .(51 FR 24504, July 3,1986; 53 FR
37045, September 23,1988). In
developing the RCRA standards
applicable to radioactive mixed wastes,
the EPA considers the management
practices required for these wastes to
avoid inconsistencies between the
EPA's hazardous waste management .
requirements and the NRC's radioactive
waste management requirements.
Furthermore, RCRA section 1006(a)
precludes any solid or hazardous waste
regulation by the EPA or a State that is
"inconsistent" with the requirements of
the Atomic Energy Act. Thus, in a case
where the regulatory requirements for
radioactive mixed waste are conflicting.
the NRC requirement takes precedence
•over the RCRA requirement. Because of
the potential that air emission control
equipment required by the subpart CC
 standards promulgated today may ,
conflict with certain radioactive waste
management requirements under NRC
 standards, the EPA has decided to
temporarily defer application of the
 subpart CC standards to tanks,
 containers, and surface impoundments
 which are being used solely to-manage
 radioactive mixed wastes. This deferral
 is disciussed further in section VII. A.I of
 this preamble.   '       ,

 V. Basiis for Final Rule

. A. Neifv Control Options
.  The EPA developed a national
 impacts model specific to the air      ,
 emission sources affected by this
 rulemaking to compare the human
 health and environmental protection
. provided by the different air emission
. control options. Following proposal of
 the rule, the EPA revised this model to
 incorporate new-information obtained
 by thel EPA and to address public
 comments on the impact analysis  '.
 methodology received at proposal.
 Section VLB of this preamble presents a
 further discussion of the impact analysis
 revisions. • .       '.         '
   At proposal, the EPA gave notice/that
 consideration of new results from
 revisions to the national impacts
 analysis could lead to selection of any
 one of the control options-considered at
 proposal or possibly a new control
 option (56 FR 33516). Upon reviewing
 preliminary results forurations. The EPA included a.
 summary of the impacts model results
 for these 14 control options in the
 information listed in the Notice of Data
. Availability (57 FR 43171) and'made
 availsible for public inspection at the .
 EPA RCRA Docket Office (refer to RCRA
 docket entry number F-92-CESA- •
 00018).               •         ,
   The EPA used the screening
 evaluation results to select a final group
 of control options selected for further
 analysis. The EPA eliminated a control
 optiaii from further consideration if
 anoth'er one of the control options was
 estimated to provide the same levtjl of
 natioiawide organic emission or cancer
 incidence reduction but at a lower cost.
 This iis the same control option selection
 apprciach the EPA used at proposal.
   Basied on'the screening evaluation
 results, the EPA selected four control
 options for further analysis, hi addition
 to the! control Option used as the basis
 for th^ proposed rule, the EPA also
 analyzed "baseline" impacts. These

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 62904   Federal Register / Vol. 59, No. 233 / Tuesday, December 6, 1994  / Rules and Regulations
 "baseline" impacts represent the
 estimated nationwide organic emissions
 and other impacts that would occur in .'"
 .the absence of implementing any of the
 control options. The final group of five
 control options (designated Options A
 through E) differ by the value used for
 the volatile organic concentration limit
 and the type of air emission controls
 used for surface impoundments.
   Option A requires air emission
 controls on all TSDF tanks, surface
 impoundments, and containers
 managing hazardous waste with any
 detectable volatile organic concentration
 as determined at the point where the
 waste is generated (i.e., a volatile
 organic concentration action level of 0
 ppmw). Under Option A, tanks use a
 cover vented to a control device except
 for tanks handling certain hazardous
 wastes. Tanks in which the organic
 vapor pressure of the hazardous waste
 in the tank is less than 10.4 kPa
 (approximately 1.5 psi) may use a cover
 without additional controls. All surface
 impoundments use a cover vented to a
 control device. Containers use cover and •
 submerged fill for loading hazardous
 wastes into the containers.
   Option B requires air emission  .
 controls only on those TSDF tanks,
 surface impoundments, and containers
 used to manage hazardous wastes
 having a volatile organic concentration
 at the point where the waste is
 generated equal to or greater than 100
 ppmw. The control requirements are the
 same as described for Option A with
 one exception; surface impoundments
 used for storage of hazardous waste and
 surface impoundments used for
 treatment of hazardous waste by a
 process not requiring aeration or
 agitation of the waste require covers
 only.
  Option C requires air emission
 controls only on those TSDF tanks,
 surface impoundments, and containers
 used to manage hazardous wastes
 having a volatile organic concentration
 at the point where the waste is,
 generated greater than 500 ppmw. The
 air emission control requirements are
 the same as described for Option B.
 Option C is the same control option
 selected as the basis for the proposed
 rule.
  Option D requires air emission
 controls only on those TSDF tanks,
 surface impoundments, and containers
 used to manage hazardous wastes
having a volatile organic concentration
at the point where the waste is
generated greater than 1,500 ppmw. The
air emission control requirements are
the same as described for Options B and
C.
   Option E requires air emission
 controls only on those TSDF tanks,
 surface impoundments, and containers
 used to manage hazardous wastes
 having a volatile organic concentration
 at the point where the waste is
 generated greater than 3,000 ppmw. The
 air emission control requirements are
 the same as described for Options B, C,
 andD.         -

 B. Control Option Impacts  ,        -
   The EPA estimated nationwide
 organic emission and cancer risk
 reductions that would be  achieved if air
 standards were implemented for each of
 the five control options. The "baseline"
 nationwide organic emissions from
 TSDF are estimated to be  approximately
 1 million Mg/yr. The estimated
 nationwide TSDF organic emissions,
 assuming implementation of the
 individual control options are 30,000 "
 Mg/yr for Option A, 41,000 Mg/yr for
 Option B, 48,000 Mg/yr for Option C,
 51,000 Mg/yr for Option D, and 90,000
 Mg/yr for Option E.
   To .assess the risk of contracting
 cancer posed by exposure to organic
 emissions from TSDF, the EPA used two
 measures of health risk: Annual cancer
 incidence and maximum individual risk
 (MIR). The annual cancer incidence
 parameter represents an estimate of
 population risk and, as such, measures
 the aggregate risk to all people in the
 United States estimated to be living
 within the vicinity of TSDF. The MIR
 parameter represents the potential of air
 emissions from a particular source to
 cause cancer in the most exposed
 hypothetical individual under the  •
 assumptions used in the risk and
 exposure assessments.
  Estimation of these nealth risk
 parameters requires the EPA to make
 several critical assumptions regarding
 the TSDF plant configurations  and
 operating practices, the composition of
 wastes managed at these TSDF, the
 cancer potency of the organics
 contained in these wastes, the emission
 of these organics to the atmosphere from
 TSDF sources, and the exposure of
 people living near TSDF to these air
 toxic emissions. The complex
 interrelationship of the various
 assumptions prevents the EPA  from   i
 definitively characterizing the estimated
 health risk parameter values as being
 overestimates or underestimates.
  The EPA estimated annual cancer.
 incidence for baseline and the five
 control options using the EPA's Human
 Exposure Model (HEM), the site-specific
 cancer risk factors, and TSDF industry
 profile data bases. This risk value is ..
based on the estimated number of   :
excess cancers occurring in the
  nationwide population after a lifetime
. .exposure (defined to be 70 years); For
  statistical convenience, the EPA divided
  the aggregate risk by 70 and expressed
  the risk as cancer incidence per year.
  The information provided in RCRA
  docket entry numbers F-92-CESA—
  S00014 and S00015 describes the
  estimation methodology in more detail.
  The EPA estimates baseline nationwide
  annual cancer incidence from exposure
  to TSDF. organic emissions to be-48   -
  cases per year. The estimated
  nationwide TSDF cancer incidences,
  assuming implementation of the
  individual control options, are two
  cases per year for Option-A,; two cases
  per year for Option B, four cases per
  year for Option .C, five cases per year for
  Option D,. and nine cases per year for
  Option E.
   The EPA uses the MIR parameter, for
  relative comparisons,of pollutants,
  emission sources, and control
  alternatives. For the impact analysis, the
  EPA estimated the MIR parameter
  assuming that exposure of the
  individual to the ambient air toxic
  concentrations occurs for 24 hours per
  day for a lifetime of 70 years. The EPA
 realizes that this is a conservative
 assumption since most people do not
 spend their entire lives at one location.
 However, it is completely, possible for
 an individual to live in the same place
 for his or her entire life. Furthermore,
 other uncertainties in the analysis could
 lead to underestimating the risk. For
 example, the actual exposed
 subpopulations (such as children or
 asthmatics) may be more sensitive to the
 emitted air toxics than the reference -,  .
 adult male for which the unit risk factor
 extrapolations are based. In addition,
 the analysis does not address potential
 indirect exposure pathways to humans",
 or potential harm to environmental
 receptors.             •   •' . •
   The MIR parameter reflects the added
 probability that a person would contract
 cancer if exposed continuously over-a
 70-year period to the highest annual
 average ambient concentration of the air
 toxics emitted from a TSDF. Baseline
 MIR from exposure to TSDF organic
 emissions is estimated to be 3 x 10Z. The
 estimated MER's, assuming       '
 implementation of the individual
 control options, are: 4>x 10~3 for Option
 A, 4 x 10-3 for Option B, 2 xlO~2 for
 Option Cr 3 x 10 ~2 for Option D, arid
 3 x 1C-2 for Option E. These MIR values
 apply only to the very few TSDF, of the
 approximately 2.300.TSDF operating in
 the United States, that are estimated to
 have the potential to cause the highest
 risk.. The values do not represent
 actuarially measured risks nor do they
 apply to all TSDF in the United States.

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          Federal Register  /  Vol.  59, No. 233  / Tuesday, December 6, 1994 / |Rules and Regulations   62905
 'The EPA is not attempting to estimate •
 any specific individual's potential of
 developing cancer. Finally,.the EPA-is
 .not interpreting any of these estimates
 as indicators of the absolute risks of
 contracting cancer.'Rather, the purpose
 of this cancer risk assessment, both for
 incidence and MIR, is to. compare
 relative differences among the
 individual control options (i.e.,
 "degree1!' of human health protection).
   In addition to estimating organic
 emissions and cancer risk parameters,
 the national impacts model provides an
 estimate of the total nationwide capital
 costs and annual costs to the TSDF
 owners and operators to install and
 operate the air emission controls
 specified by each control option. For  :
 these nationwide cost estimates, the
 EPA assjumed that, at every TSDF
 location', treatment of all hazardous
 wastes to remove or destroy the organics
"in the waste occurs as the last step prior
 to disposal of the waste. In actuality, the
 EPA expects that, at many TSDF, the
 owner ojr operator .(after becoming aware
 of the air standards) will elect to treat
 waste aij an earlier step in the waste
 management sequence. By treating
 organics in compliance with one of the
 .waste treatment alternatives .provided in
 final.rule, the pwner or operator could
 avoid the costs of installing and
 operating control equipment on the
 downstream tanks, surface
 Impoundments, and containers.
   Capital investment cost represents the
 cost to TSDF owners and operators to
 purchase and install the air emission
 control equipment. The estimated
 nationwide capital costs in 1986 dollars
 to implement the control options are:
 $520 million for Option A, $290 million
 for OptiJDn B, $240 million for Option C,
 $200 million for Option Dj and $140
 million tor Option E. Annual cost
 represents the total cost to TSDF owners
 and operators each year to pay for
 operating and maintaining the air
 emission controls as well as to repay the
 capital investment for the air emission
 controls'. The capital recovery was
 estimated using an interest rate of 10
 percent [applied over a period ranging
 from lOito 20 years' depending on the
 expected service life for each type of air
 emission control equipment The
 estimated nationwide annual costs to
 implement the control options are: $190
 million^yr for Option A, $110 million/
 yr for Option B, $90 million/yr for
 Option C, $80 million/yr for Option D,
 and $60 milliori/yr for Option E.

 C. Selection Rationale    	
     ' '     :f  '   '               	
   From jOptions A through E, the EPA  .
 selected one-contrpl-option to serve as
 the basis for today's final rule. The EPA
applied the same decision rationale
used at proposal for this rulemaking (56
FR 33515-33516, July 22,1991) as well
as for RCRA air standards promulgated
under subparts AA and BB to 40 CFR
parts 264 and 265 (refer to 55 FR 25470,
June 21,1990). This decision rationale
requires the EPA to select, -whenever
possible, the level of control that
provides .an acceptable degree of      ,
protection of human health and the
environment. If no, control option is
available to achieve acceptable levels of
protection, Jhe EPA's approach
historically has considered cost under
RCRA only for equally protective -
control options.
  All five of the'control options
considered for the final rule are
estimated to achieve-similar levels of
substantial reductions in nationwide
organic emissions, from TSDF. The
nationwide organic emission reductions
for the control options are estimated to
be approximately 970,000 Mg/yr- for
Option A, 960,000 Mg/yr for Option B,'
950,000 Mg/yr for Option C, 950,000
.Mg/yr for Option D, and 910,000 Mg/yr .
for Option E.
 . Both Options A and B are estimated
to achieve the lowest cancer MIR and
greatest reduction in annual cancer
incidence of the five options. However,
none of the control options reduces MIR
to the target cancer risk levels used for
other promulgated RCRA standards,
which have been in .the range of IxlO—*
to 1x10 -«. The estimated MIR is an
order-of-magnitude higher for Options
C, D, and E (2xlO-2 for Option C,
3x10 ~2 for Options C and D) .compared
to Options A and B (4x10 -3)^ Annual
.cancer incidence reductions estimated
for Option C (44 cases per year), Option
D (43 cases per year), and Option E (39
cases per year) are lower than the -
annual cancer incidence reductions
estimated for Options A and B (46 cases
per year). .  .
  On the basis of the estimated annual
cancer incidence and MIR, the EPA  ,
concluded that Options A and B are
more protective of human health than
Options C, D, or E. Therefore, the EPA
eliminated Options C, D, and E from  '
further consideration as the basis for the
final rule.
  Both Options A and B  aje estimated
to achieve the same level of cancerrisk
reduction (MIR to 4 x 10~2 and annual
cancer incidence to two cases per year).
Therefore, the EPA concluded that,
Options A and B are equally protective
of human health and the environment
(to the extent ascertainable by this
modelling methodology). Historically
under RCRA, the EPA has considered
control option costs only to select
between options estimated to achieve1
.equivalent levels of protection. -   ,
Therefore, to select between Options A
and B, the EPA compared the estimated
costs to implement each of the control
options. Option B.requires the use of air
emission controls only on those TSDF
tanks, surface impoundments, and
containers used to .manage hazardous
wastes with a volatile organic       •   •
concentration at the point where the
waste is generated equal'to or greater
.than. 100 ppmw. Because TSDF owners
and 'operators would need to install and
operate air emission controls oil fewer.
TSDF tanks, surface impoundments,
and containers, Option* B would be Jess
expensive for the TSDF industry to
implement than Option A. Therefore,
the EPA selected Option B as the basis
for the final rule.
   While Option B does not achieve the
target MIR levels historically used for
other promulgated RCRA rules, Option
B does achieve substantial reductions in
cancer risk. The annual cancer
incipience is estimated to be reduced by
greater than 95 percent from the:
baseiline value. Furthermore, the MIR for
most of the 2,300STSDF nationwide are
estimated to achieve the target MIR
levels. To address the remaining cancer
risk;at TSDF after implementation of the
air standards promulgated today, the
.EPA is further evaluating the waste
management practices and the specific
chemical compounds composing the
orgajiic emissions from those individual
TSEIF for which the MIR values are
estimated to be greater than the •
historical RCRA target MIR levels.
Following this evaluation, the EPA will
determine what other actions,, such as
the 'use of section 3005(c)(3), omnibus
penhitting.authority or additional
rulemaking, are necessary to attain the
health-based goals of RCRA section
3004(n).          .  .     '
VI. Summary of Responses to      -~'
Comments on Proposed Rule

   All of the comments on the proposed
rule and the EPA's response to each of
thesie comments is presented in
"Halzardous Waste Treatment, Storage,
andjDisposal Facilities (TSDF)—
Background Information for
Promulgated Organic Air Emission
 Standards for Tanks, Surface
Impoundments, and Containers", EPA
 document number EPA-"453/R-947-Q76b
 (to obtain a copy of this document refer
to the ADDRESSES section of this
 preiimble). The EPA's responses to
 topics addressed by many of the  —
.cbnimenters are summarized below.

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  62906   Federal Register / Vol. 59, No. 233 /Tuesday, December 6, 1994 / Rules and Regulations
 A. Development of Air Standards Under
 RCRA                    •   •
   Comment; Many comments were  ,
, received regarding the'extent to which
 tha congressional directive of RCRA
 section 3004(n) should be implemented
 using air standards established by the
 EPA under Clean Air Act (CAA)
 authority. Commenters stated the
 position that protection of human health
 and the environment from TSDF air
 emissions is most appropriately,
 'effectively, and efficiently addressed by:,
 developing air standards under the CAA
 authority. Therefore, comrrienters
1 believe that the EPA should make the
 determination that the requirements of
 RCRA section 3004(n) are best fulfilled
 by deferring to air standards established
 under CAA authority. Commenters
 stated that the air standards proposed by
 the EPA under authority of RCRA
 section 3004(n) are:
   (1) Not needed because existing CAA
 programs adequately address the control
 of TSDF organic emissions;
   (2) Duplicative or contradictory of
 new programs now being implemented
 by tho EPA to control hazardous air •'
 pollutants as directed by section 112 of
 the CAA;
   (3) Not in compliance with RCRA
 section 1006(b) regarding duplication or
 contradiction of CAA requirements; •
   (4) Inconsistent with CAA programs
 that establish ozone precursor control
 requirements depending on the national
 ambient air quality standards attainment
 status of the region in which a source •
 is located;-
   (5) Inconsistent with the EPA's
 pollution prevention policy;
   (6) Contrary to the EPA's "cluster
 concept" of examining and coordinating
 regulations addressing the same
 emission source to minimize
 duplicative or contradictory
 requirements; and
   (7) Difficult to administer and enforce
 because, traditionally, one State
 regulatory agency administers rules
 regulating air emissions while another
 administers rules regulating hazardous
 waste management.
   jResponse:The Hazardous and Solid
 Waste Amendments to RCRA added
 section 3004(n), which directs the EPA
 to "*  * * promulgate regulations for the
 monitoring and control of air emissions
 from hazardous waste treatment,
 storage, and disposal facilities,
 including but not limited to open tanks,
 surface impoundments, and landfills, as,
 'may be necessary to protect human
 health and the environment." The EPA
 considers the most appropriate,
 effective, and efficient way to fulfill this
 congressional mandate is to develop air
 standards for TSDF that are       .   ,
• implemented under the existing RCRA
 subtitle'C permitting program already in
 place for thdse facilities. However, the
 EPA disagrees with one commenter's
 assertion that, in establishing .these
 RCRA air standards, the EPA cannot
 consider the impact of air, standards ,
" promulgated or currently, being
 developed under-other statutory
 authorities such as the 'CAA^ On the
 contrary, RCRA section 1006(b) requires
 the EPA to coordinate its regulations
 under RCRA statutes ahd'to avoid   -.
 duplication, to the maximum extent
. practicable, with appropriate provisions
 of the CAA.
   The EPA disagrees that the
 requirements of RCRA section 3004(n)
 are best fulfilled by deferring to air
 standards established under CAA
 authority. There is no indication that
 Congress intended for air standards to
 be issued only within the authority
 granted to the EPA by the CAA. If this
 was the case, then Congress would not
 have, amended RGRA section 3004(n)
 under HSWA after Congress had already
 authorized the'EPA to control air  '
, emissions under the CAA* Refer to S^
 Rep. No. 284, 98th Cong. 1st sess. 63.
"Thus, both RCRA and the CAA
 authorize the EPA to control air   ' -  ''  :
Remissions from TSDF.   .
   Although historically many standards
 promulgated "by the EPA under
 authority of RCRA-have addressed the
 prevention of soil and water
 contamination .from improper
 management of hazardous waste, the
 EPA is not limited by RCRA to      .
 promulgating standards only for certain
 media (e.g., surface waters,
• groundwater, and soils). Indeed, RCRA,
 section 3004(n) specifically directs the
 EPA to issue regulations controlling air
 emissions from TSDF as necessary to  ,,
 protect human health and the,
 environment.
   The selection of TSDF air emission
 sources for control by establishing air
 standards under RCRA section 3004(n) ,
 is based on controlling those TSDF air  .
 emission sources determined by the
 EPA to have significant toxic and ozone
 precursor emission potential but for
 which emission control is not
 adequately addressed by. other standards
 promulgated by"'the EPA such as
 NESHAP and NSPS established under
 the CAA. At proposal, the EPA    •
 concluded that additional air emission
 control requirements for TSDF tanks,
 surface impoundments, and containers
 are needed. This decision was based on
 the EPA's determination that existing
 and' future Federal standards under the
 CAA and State air standards do not
 adequately address the control of TSDF
 organic air emissions. -
   As previous described in section III.E
 of this preamble,'CAA section 112 has
 been amended by Congress since RCRA
 section 3004(n) was enacted. Section
 , 112 of the CAA as amended requires the
 EPA to identify major sources and area
 sources of HAP emissions and to
 develop NESHAP for-these sources. To
 date for this' air standards development
 program, the EPA'has either    '..-••
 promulgated or proposed several
: NESHAP that may apply to some
•hazardous waste management activities  .
 at TSDF. However, in general, these   "
 NESHAP added requirements to address
 HAP emissions, from certain waste" and
 material recovery operations that are not
 subject to or exempted from regulation
 under the RCRA air standards in 40 CFR
 parts 264 and 265. Thus, the NESHAP
 and other air standards being developed
 under GAA are not intended to
 duplicate the RCRA air standards, but
 instead to integrate with the RCRA air
 standards to create a comprehensive air
 program for addressing organic air
 emissions from all waste and related
 material recovery operations.
   For example, on-site wastewater
 .treatment operations at synthetic
 organic chemicals manufacturing
 industry (SOCMI) facilities are regulated
 under the hazardous organic NESHAP
 ("the HON") promulgated on April 22,
 1994 (see 59 FR19402). At many of
 these facilities, the hazardous-  .
 waste-waters generated by process units  .
 and resulting wastewater treatment
 sludges are managed in tank systems
 that are exempted from RCRA
 permitting requirements under
 provisions in 40 CFR 264.1(g)(6) or 40
 CFR 265.1(c)(10). .Thus, the air emission
 control requirements under the HON, in'
 most cases, affect wastewater treatment
 tanks not subject to the RCRA air
 standards.                  .
   A second example is the recently,
 proposed NESHAP for off-site waste and.
. recovery operations (59 FR 51913,
 October 13,1994). This NESHAP would
 apply to owners and operators of
 facilities, with certain exceptions, that
 manage wastes or recoverable materials
 which have been generated off-site at
 another facility and contain specific
.organic HAP. The rule would apply to
 operations managing solid wastes as,
 defined under RCRA (hazardous and
 nonhazardous wastes) as well as
 operations handling recovered materials
 excluded from the RCRA definition of
 solid waste (e.g., recycled materials
 containing organic HAP, used oil
 reprocessed for sale as a fuel). As a
 result, certain off-site waste and
 recovery operations with organic HAP

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           Federal Register / Vqli 59, No. 233 /Tuesday, December 6, 1994  I |Rules and Regulations  62307
  emissions, but exempted from .    •
  regulation under the RCRA air [.     ,
  standards, would be required to use air
  emission contrdlsTinder this NESHAP.,
:    In contrast to the NESHAP now being
  developjed under GAA section 112, the
  EPA has| already achieved progress
  toward full implementation of RCRA
  section 3004(n), which requires a
 , "cradle jto grave" approach to hazardous
 ' waste management that addresses
 .protection of air, water, and
  groundwater. Air standards have been
  promulgated for TSDF treatment process
  vents (silbpart AA in 40 CFR parts 264
  and-265i) and for TSDF process
  equipment leaks (subpart BB in 40 CFR
  parts 204 and 265) in addition to the
  development of these .air standards for
 ', TSDF tanks, surface impoundments,
  and containers. There is no benefit to
  delaying implementation of air
  standards forTSDF tanks, containers,
  and surface impoundments to a future
  rulemaking under amended CAA  ,
  section 112 when the EPA can proceed  .
  now wijth the promulgation of effective
•  air standards under RCRA section
  3004(n) for these air emission sources.
    The RCRA air standards adopted
  today dp comply with RCRA section
  1006(b). This section requires that the
  air standards be consistent with and not
  duplieative of CAA standards. Although
  RCRA section 1006(b) requires some
  accommodation with existing regulatory
  standards, it "does not permit the
 ; substantive standards of RCRA to be
  compromised." Chemical Waste
  Management v. EP4,976 F.2d at 23 ,.'
  (B.C. C|r. ,1992). It is obviously
  reasonable for the EPA to view the  1.
  RCRA section 3004(n) mandate as a
  standard which cannot (or at least need
  not) beicompromised. Similarly, the
  CAA Amendments of 1990 require that
"  air standards developed under the CAA
  be consistent with RCRA rules._To
  conforrn with the dual RCRA and CAA
  requirements that standards be
  consistent, the air standards developed
  under RCRA section 3004(n) do not
  duplicate or contradict existing
  NESHAP or NSPS.
     The EPA is fully aware that at many
  facilities where hazardous wastes are
  managed, the RCRA air standards under
   40 CFk part 264 and 265 as well as
   NESHAP and NSPS for specific source
   categories may be applicable to a
   particular TSDF. Certain testing,  .
.   monitoring, inspection, recordkeeping,
"-•• and other requirements under the RCRA
  ;air standards may be similar to or
   duplicative of requirements under the
   applicable NESHAP or NSPS. In many
   cases at a TSDF, individual waste
   operations will be subject to either the
   air emission control requirements under
the RCRA air standards or the air
emission control requirements under
the .applicable NESHAP or NSPS. Thus,
it is necessary to include testing,
monitoring, inspection, recordkeeping,
and other implementation requirements
in each rule to assure compliance with
and enforcement of the rule. However,
in certain situations, some individual
waste operations at a TSDF could be
subject to air emission control
requirements under both the RCRA air
standards as well as a NESHAP or    '
NSPS. In such cases, the EPA believes  .
it is unnecessary for owners and
operators of these waste management
units to conduct duplicative waste
testing, keep duplicate sets of records,
or perform other duplicatiye actions to
demonstrate compliance with both sets
of rules. Therefore, to be consistent with
RCRA section 1006(b) to the maximum
extent practicable, the EPA is       .
coordinating the testing, recordkeeping,
reporting, and other implementation
activities required under the RCRA air
standards and related rules developed
under the CAA. The EPA has requested
public comment in a related proposed-
NESHAP rulemkaing (the off-site waste
and recovery operations NESHAP, see
59 FR 51919; October 13,1994) on how
the applicable requirements included in ,
the RCRA air standards should be
incorporated into CAA rules being
developed by the EPA for waste and   ,
recovery operations that will allow
owners and operators subject to both
sets of rules to demonstrate;Cbmplianee
with all applicable rules without having
to repeat the duplicative requirements.
   Nevertheless, RCRA section 1006(b)
 cannot be used to ignore key elements
 of RCRA; see Chemical Waste  ,    ,
Management y. EPA, 976 F,2d at 23. In
 this case, Congress has indicated that
 TSDF air emissions need to be
 controlled on the RCRA timetable, not
 that of the CAA. Deferring totally to the
 CAA would vitiate this key RCRA
 requirement (See also RCRA section
 3004(q) and CAA section 112(n)(7) in
 which Congress indicated that
 pendency of CAA air standards for
 RCRA units does-not vitiate RCRA
 requirements.]            ,
   The EPA's approach to developing air
 standards for TSDF under RCRA is
 consistent with CAA programs to_
 achieve attainment and to maintain
 national ambient air quality standards
 (NAAQS). The NAAQS specify limits to
 pollutant concentration^ in the ambient
 air to protect public health and welfare.
 A NAAQS has been established for
 ozone. Ambient ozone concentrations in
 many, metropolitan regions of the
 United States exceed the NAAQS.
 Organic emissions from TSDF as well as
other sources react phqtochemically
with other chemical compounds in the;
atmosphere to form ozone. The CAA
requires that States "develop and the
EPA' approve air'emission control plans
called "State implementation plans"
(SIP|;s). For those regions within a State  !
that1 are in nonattainment with the
NAAQS for ozone, the SIP specifies the
standards and other control measures to
be implemented by the State to attain "   ,
the NAAQS. However, the CAA requires
the EPA not only to implement
programs to attain the NAAQS -in       ;
nonattainment areas but also to      '  ;
maintain, and prevent significant
deterioration of, the air quality in those
areas of the Nation currently hi
attainment with the NAAQS.
Consequently, in addition to the CAA
control programs to address specific
regional NAAQS attainment problems,
the EPA also develops under the CAA  •
authority minimum national emission - '•
standards applicable to stationary      ;
sources independent of whether the
source is located in a NAAQS
attainment or nonattainment area. The
EPA considers the subpart CC standards
to tie reasonable national standards   •
nee ded to control emissions 'of air toxics
as well as to attain and maintain
NAAQS for ozone.
  The subpart CC standards-are
consistent with the EPA's pollution
prevention policy. Pollution prevention
involves reducing the quantity of
pollution produced for a given quantity
 of product prior to recycling, treatment,
 or control of emissions, Activities'.'
 defined as source reduction measures in
 the| Pollution Prevention Act include
 technology modifications, process and
 procedure modifications, reformulation
 or redesign of products, and substitution
 of raw materials. A .decrease in   ;
 production alone does not qualify as
 pollution prevention. Under the subpart
 CC' standards, a TSDF-owiier or operator
 is Jiot required to manage a hazardous
 waste in a,tank, surface impoundment,
 or ibontainer using the specified air
 emission controls in cases when the
 owner or operator determines that the
 organic content of all hazardous waste
 placed in the unit meets certain
 conditions specified in the rule. Thus,
 the subpart CC standards encourage
 pollution prevention by providing an
, incentive to generators to initiate source
 reduction measures that will reduce the ,
 concentration of organics in a hazardous
 waiste. •      '  .        i
   The development of TSDF air
 standards under RCRA is not contrary to
 the EPA's "cluster" approach of
 examining and coordinating regulations
 addressing the. same emission source to
 minimize duplicative or contradictory

-------
 •62908  ^Federal Register / Vol. 59,.No. 233 /Tuesday, December 6, 1994  I'..Rules and Regulations
 requirements. The different EPA Offices
 responsible for implementing RCRA and
-, CAA requirements are coordinating the
 development of this rulemaking to  -   ,
; ensure that subpart'CC standards are
 compatible \yith other rules and
 programs applicable to TSDF owners
 and operators.
   The air emission control requirements
 for tanks under the subpart CC
 standards incorporate provisions of   -
 NSPS tHat were promulgated under the
 authority of the CAA and apply to  .
 storage tanks constructed or modified
 after July 23,1984, that contain volatile
< organic liquids (40 OFR-part 60, subpart
 Kb). Therefore, air emission controls
 already in use on a TSDF tank in
 compliance with 40 CFR part 60,
 subpart Kb will comply with air"
 emission control requirements of the
 subpart CG standards. Also, the subpart
CC standards for closed-vent systems
and control devices cross reference  the
requirements for closed-vent systems
and control devices promulgated under
 subpart AA in 40 CFR parts 264 and
 265. The subpart AA requirements are
consistent with the requirements for
closed-vent systems and control devices
under several CAA air standards.
   The implementation of air standards "
under RCRA does not create difficulties
in administration and enforcement of . •
the rules by State regulatory agencies.,
Although many existing RCRA
standards focus on preventing the
contamination of soil and water, other
existing RCRA regulations regulate air
emissions from some TSDF sources
(e.g., combustion of hazardous waste is,
regulated under 40 CFR part 264,
subpart O for hazardous waste
incinerators and under 40 CFR part  266
subpart H for boilers and industrial
furnaces). Air emissions'are also
some times addressed through .the EPA's
omnibus permitting authority under, ,
RCRA section 3005(c)(3). States
authorized by the EPA administer and
enforce the requirements of RCRA rules
in lieu of the EPA administering the
rules in that State. The EPA is aware
that, in many States, one State agency
administers air standards while another
State agency administers rules
regulating the management of hazardous
waste in the State. Similarly, it is
common for yet another State agency to
administer water quality rules. The
experience of authorized States
administrating existing RCRA rules
shows that responsibility for
administrating these rules can be
delegated to a separate State agency
without impeding.the administration
and enforcement of non-RCRA air and
water rules by other State agencies.
 B. Revised Impacts Analysis,
  Comment: The commenter drt the.
 Notice of Data Availability (NDA) (57
 FR 43171,'September 18, .1992) supports
 the EPA's use of the updated waste data
.base for the national impacts analysis
 and the EPA's changes to'the emission
 models for biological treatment
 processes. In addition, the cornmenter •'
 agrees with the EPA's conclusion that
 many surface impoundments reported
 in the waste data base to be managing.
 waste at TSDF have been or are being
 replaced with tanks to. comply with the •
 RCRA land disposal restriction and
 other regulations. However, the   '
 cornmenter believes that the EPA's
 assumption that 75 percent of the total
 waste quantity reported in the waste
 data baselo be managed in surface
 impoundments is now managed in tanks
 is too low. T,he commenter agrees with  •
 the EPA's revised approach in the .
 impact analysis of using site-specific ',
 cancer risk factors to estimate cancer
 risk due to exposure to TSDF emissions.
 However,  the commenter states that
 some of the specific assumptions made
 by the EPA for the risk analysis are"
 implausible (e.g., assuming exposure pf
 the individual for 70 years) and the
 analysis should be conducted in
accordance with the EPA's own.
 Exposure Assessment Guidelines.      •
 Finally, the commenter does not believe
 that any MIR estimate is necessary to
 assess the need for and effectiveness of
 the rule.                -      ,
  Response: For the national impacts
 analysis, the-EPA believes that 75 :
 percent is a reasonable assumption for
 the amount of waste that is converted
 from surface impoundment to tank
 management. As discussed further in
 the BID for the final rule, the EPA
 selected the 75 percent value based on
 information obtained by the EPA from a
 telephone survey of owners and
 operators of large TSDF and from TSDF
 site visits as well as information
provided to the EPA by several TSDF
 owners and operators in comments on
the proposed rule. The EPA did not find
nor receive any additional information
from the commenter ^that justifies
increasing the.percentage of waste
converted from surface impoundment to
tank management.  •
  The cancer risk impact analysis for
this rulemaking was conducted in
accordance with the EPA's Exposure
Assessment Guidelines. With regard to
the  70 year lifetime assumption used in
the impact analysis, the EPA believes 70
years to be conservative, but plausible.
The EPA did however conduct a second
risk assessment assuming a 33 year
exposure scenario (95 percentile). Using
 this assumption reduced risk estimates
'by one-half, but did riot change the ,
 decision to control these facilities, nor
 the choice of control options.     .
 (Furthermore, the risk assessment    '
 conducted here was for the purpose of  •
 determining relative differences in risk
 estimates between the control options.
 For this application, the exposure
 scenario would not matter; the results,
 i.e., the relative differences in risk
 estimates, would not change.
 , .The EPA holds that the assumptions
 used to determine the MIR are, as with
 the 70 year exposure scenario,       '
 conservativerbut plausible; and result"
 in a reasonable overall estimate 6f risk.
 In addition, while the EPA
 acknowledges the uncertainties
 associated with the MIR, such
 uncertainties cancel out when the risk  ';
 assessment is used to discern relative
 risk, as in this case. Thus the EPA
 believes that the use of the MIR is an
 appropriate tool to apply in the impact  •
 analysis for this rulemaking to both
 estimate risk and to discern differences
•between risk estimates associated with
 the various control options.

 C. Container Air Standards      '.
  Comment: Many commenters disagree
 with the EPA'.s decision to require air
 emission controls for containers under
 the subpart CC standards. One group of
 commenters, argues that the organic
 emission potential from TSDF
 containers does not warrant the
'application of additional controls
beyond those already required by
 existing RCRA standards. A second
group of commenters contends that
TSDF containers should not be subject
to this rulemaking because the EPA
analysis does not show organic     /
emissions from TSDF containers to be a -
significant emission source warranting
controls.    •         •'  '      ~
  Response: The EPA maintains that the
management of organic-containing
wastes in containers at TSDF is a
potentially significant source of organic
emissions that is not adequately
regulated by existing regulations.
Control requirements for containers
under the subpart CC standards are
needed to:
  (1) Ensure that containers used for
storage of organic-containing waste use
covers effective for organic emission.
control;  .  ,          •        ,
  (2) Control organic emissions from
treatment of organic-containing wastes
in containers by waste stabilization and
other processes; and
  (3) Prevent circumvention of the
containment and control strategy that
serves as a key  component of the

-------
          Federal Register /:Vol.  59, No. .233  /  Tuesday, December 6, 19947  feles and Regulations   62909
 integrated approach to implementing
 RCRA section 3004(n).
  The EPA disagrees with the
 commenters' conclusion: that existing
 regulations are sufficient to control
 organic emissions from containers used
 to manage hazardous waste at TSDF.
 Existing RCRA regulations under 40
 GFR 264.173 require containers used to
 store hazardous waste at TSDF to be
 closed except when necessary tq.add or
 remove waste. This requirement for'  '-_
 closed containers during storage does
 not specify organic air emission controls
 for these covers. Furthermore, no RCRA
 requirements exist that address organic
• emissions associated with other
 container! operations such as hazardous
 waste transferor treatment in open  ,
 containers.     :
   The EPA also disagrees with the
 commenters' conclusion that'managing
 hazardouk wastes in containers is not a
 significant potential source of organic
 air emissions. The baseline analysis to
 estimate nationwide TSDF organic
 emissions by .waste management
 category is not the only factor that .the
 EPA considered in assessing the organic
 emission jpotential of containers. The
 revised nationwide baseline emissions
 from storage of hazardous waste in i •
 .TSDF containers is estimated to be-.
 approximately 5,000 Mg/yr. However,
 this emission estimate for containers
 does not jnclude organic emissions from
 hazardous waste treatment in
 containers. As described in the BID for
 the final rule, the EPA estimates the
 total organic emissions from waste.  -•,
 fixation operations performed in
 containers to be approximately 11,000
 Mg/yr. Information obtained by the EPA
 representatives during site visits to
 TSDF conducting waste fixation
, operations indicates that use of
 containers for waste fixation continues
 to be a cbmmon industry practice. Thus,
 treatment-of hazardous waste in'
 containers is. a large potential source of
 organic emissions that is not regulated
 by the existing RCRA regulations.
   The air emission control requirements
 for the subpart CC standards are based
 on applying a containment and control
 strategy.to TSDF tanks, surface
 impoundments, and-containers from
 generation of the waste through
 treatment of the waste to remove or
 destroy the organics in the waste.     .
 Requiring control of only TSDF tanks
 and surface impoundments but not
 containers creates a significant potential
 organic emission source if large
 quantities of hazardous waste currently
 stored or treated in tanks required to use
 air emission controls under subpart CC
 standards are transferred to containers
 i not using air emission controls. This
would allow organicsin the hazardous
waste managed in uncontrolled   •
containers to escape to the atmosphere
prior to treatment and, thus, reduce the
effectiveness of the containment and
control approach.  ;

D..Generator 90-Day Tanks arid
Containers,    .               ~  •' .   '
  Comment;; Many commenters disagree
with the EPA's decision to apply the
proposed air standards to 90-day tanks
and containers for the following
reasons:             v    .
  (1) The EPA is not authorized under ,
RCRA section 30'04(n), or under other
provision, .to extend the air. standards to
90-day tanks and containers;
  '(2) The proposed rule failed to cite .
authority to extend the requirements to
90-day tanks and containers.in
violation of section 553(b)(2) of the
Administrative Procedures Act;
  (3) If the EPA imposes air emission
controls on generators, this must be
accomplished pursuant to the pre-
HSWA authorization process and thus
should not become effective in
authorized States until enacted and
implemented as State law; and
  (4) Application of air emission control
requirements to 90-day tanks and
containers impermissibly interferes'with
manufacturing processes.
  Response: The EPA disagrees with
each of .these comments. The provisions
of 40 CFR 262,34 (promulgated under
the authority of RCRA section 2002,
3001—3005,  and 3007).allpw generators
to accumulate hazardous waste in tanks
and containers for specified time     ,  ..
periods without obtaining RCRA
permits, provided the generator meets
certain conditions; Amending these
conditions is a valid exercise of .the :
EPA's authority under RCRA section'
3004(n).-     .   .           .
  The intent of including the  provisions
of 40 CFR 262.34 in the RCRA
requirements for .hazardous waste -
generators is to obtain a reasonable
balance between the Congress's desire
not to interferejwith the generator's
manufacturing or production  processes
with the need to provide adequate
protection of human health and the
environment (45 FR12730, February 26,
 1980). Thus, 40  CFR 262.34 does not
provide a hazardous waste generator
with a complete exemption from all'
RCRA requirements. On the contrary, it
. incorporates most of the relevant tank
 and container requirements under 40'
 CFR part 265 and requires compliance
 with these standards as a condition for
 maintaining RCRA permit-exempt status
 [refer to 40 CFR 262.34(a)(l)j. The intent
 of these pro visions, is not to exclude 90-
 day tanks and containers from future •'
technical TSDF requirements.
Therefore, it is wholly appropriate for
the EPA to update the technical .
requirements for tanks and containers
that serve as the basis for the RCRA.
permit exemption. The EPA has already
done HO, for example, when tank
standiirds were amended in 1986.
  Although 90-day tanks and containers
are not required to be permitted under   '
RCRA; subtitle C, the EPA rejects the
commenters' narrow reading of RCRA
section 3004(n) as limiting the EPA's
authority to extend the requirements to
"these units. Section 3004(n) of RCRA
requires the EPA.to promulgate  .
standards for the control of air   .
emissions from "hazardous waste
.treatment, storage, and disposal
facilities." The EPA does not agree that
RCRA section'3004(n) reflects a   /
congressional intend that the EPA
regulate air emissions only from
permitted and interim-status TSDF and
not frpm '90-day tanks and containers.
These tanks and containers are
physically identical (i.e., the same types
of tanks and  containers are used by
generators to accumulate and'by TSDF
owners and operators to store and treat
wastei). There is no environmental basis
for not considering them subject to the
section 3004(n) mandate. Such units
are, in fact, storing or treating hazardous
wastei and are subject to numerous
 standards promulgated under the
 authority of both RCRA sections 3002
 and 3'004. The exemption of 90-day
 tanks; and containers from the
 permitting requirements of RCRA
 subtiile C is regulatory, not statutory;
 there;! is no directive in the .RCRA
 legislation that precludes the EPA from
 imposing any or all of the TSDF
 requirements on them. The use of the
 term ("facility" hvRCRA section 3004(n-)
 can*certainly be.read to encompass 90-
 day tanks and containers, given the
' EPA's flexibility to construe that term
 (see United Technologies v. EPA, 821
 F.2d at,814 (D.C. Cir. 1988) and the fact
 that 90-day tanks and containers are
 already subject to the substantive
 standards for tanks and containers and
 pose precisely the same potential .
•environmental risks as other tanks and
 containers holding hazardous waste. In
 addition, the EPA sees to reason that
 Congress intended 90-day tanks and
 contiiiners to be subject to air-emission
 controls at a different time than other
 tanks and containers (which would be
 the case if the 90-day units are not
 regulated pursuant to a HSWA
 provision).
    Therefore; it is proper for the EPA to
 use if s authority under RCRA section
 3004|(n) to amend 40 CFR 262.34(a) by
 addtag air emission .control •',  '

-------
 62910.  Federal Register /  VoL 59, No. 233 'J Tuesday, December 6, 1994 7 Rules and Regulations
 requirements to the conditions required ,
 for a 90-day tad; or container to be
 exempted from the RCRA permitting
 requirements. For these jeasons, the
' EPA rejects' the coromenters' arguments
 that the Agency is not authorized or
 faile d to cite .authority to use this
 rulcmaking to amend the exemption
 requirements lor 90-day tanks and
 containers. In addition, the EPA .rejects
 the argument that the exemption
 requirements are imdnr fheEPA'.s pre-
 HSWA authority and, therelore,.are not
 applicable in authorized States until the
 individual States are authorized -to
 implement the rule {See 51FR 25464,
 July 14,1986, where the ERA indicated
 that the .modifications to 40 CFR 262.34,
 to reflect amended lank-standards., were
 HSWAjules).
  As a variation oTthe argument that ,90-
 day tanks-and-containers should not "be
 regulated,' one commenter asserts that
 RCRA section 3004(n) reflects a
 congressional intent that the EPA
 regulate air emissions only from
 permitted and interim-status TSDF and
 not from 90-day tanks and containers.
 The commenter apparently argues ,fhat
 the explicit inclusion ol such authority
 under'RCRA section 3004&0 and not
 under"RCRA section 3002 implies a
 congressional finding that waste
 accumulation does not significantly
 contribute to.air pollution.The EPA
 finds no indication, in the legislative
 history .of RCRA, or-elsewhere, that
 Congress ever made such a fin ding, and
 the EPA's conclusion, as discussed later
 in this section, Is that bn-site
 accumulation of hazardous waste in 90-
 day units is a significant source of
 organic air-emissions. Again, the EPA
 finds no'indication .that Congress
 intended to preclude the EPA from
 regulating air emissions from
 nonpermitted hazardous waste storage
 and treatment under RCRA section
 3004(n).
  In addition to RCRA section 3004(n),
 the EPA has authority under RCRA
 section 30O2 to amend 40 FR 262.34(a).
 One commenter states that, although
 RCRA section 30Q2laj{3) authorizes the
 EPA to require the use of appropriate
 containers, RCRA,section 3002 provides
 no authority to .regulate air emissions.
 The EPA disagrees with this statement.
 The RCRA jsection 3002(aH3) authority,
 as well as the .general authority under
 RCRA section 3002 to promulgate such
 rules regulating generators **as may "be
 necessary to protect human health and
 the environment,'" is broad enough to
 encompass the regulation of air
 emissions from  units storing or treating
 hazardous waste at generator facilities.
  Finally, the EPA cited both RCRA
 sections 3002 and 3004 as the statutory
authority for the proposed rule.
Therefore, this rulemakiqg is in full   •
conformance with section 553{b}(23 of
the Administrative Procedures Act.
  The EPA also rejects the argument
that the -application of air emission
controls to 90-day tanks and containers •,
impermissibly interferes with
manufacturing processes. The EPA
concluded in 1930, as cited above, that
the appropriate balance between
protecrjion>oftthe RTi-viTnTiBTrt and  .   *,
nnnintarfergnrB *Mnfh -mnrnTfarrtiirmg
processes was achieved by requiring 90-
day tanks and ^containers to comply
with certain-technical requirements as a
condition of being exempt from the
requirement to have a RCRA permit.
The EPA -estimates that nationwide
baseline organic «missions from 90-day
tanks and containers are approximately
76,000'Mg/yr. Given the significant
organic emissions from SO-day tanks
and containers, the -same rationale has
led the EPA to require that 'these units  -
comply-wrth the appropriate air
emission control requirements -of the
subparts AA, BB, and CC standards to
maintain an exemption from RCRA
permitting. In contrast, lie EPA decided
not to extend omder this Tulemaking the
requirements of these air standards to
containers used for satellite
accumulation because of the •widespread
use of'these containers by
manufacturing process operators to
collect small quantities of hazardous
waste as generated, and the integrated
use of these containers with the
manufacturing operations '(discussed
further in section 7.2 of the BID for
today's rule'). The EPA believes that this
regulatory framework maintains the
appropriate balance between
environmental protection and
noninterference with manufacturing
processes.

E. Implementation afiBGRA Air
Standards

  Comment: A total of 24 commenters
addressed the EPA% proposed action of
modifying the "permit-as-a-shield"
practice to xequire that owners and
operators of TSDF that haveieen issued
final permits prior to the effective date
of this rulemaking .comply with the air
standards under 40 CFR 265 subparts
AA, BB!, and CC -until the facility's
permilis reviewed or xeissued~by the
EPA. Four jof-.the commenters support
the EPA's proposed modification. The
other 20 commenters oppose the
proposed modification and maintain
that "permit-as-a-shield" practice,
should remain -unchanged because any
action by the EPA to remove this     (-
practice:
   (1) Is without the legal authority and
 that to do so would he contrary to
 congressional intent;
   (2J Violates the due process rights of.
 permittees, which are -normally,
 -protected through the permit process;'
   t3) Negates the purpose and
 importance of the>RCRA permit because
 'the"permit-as-a-shield" practice serves
 to unify all the regulatory requirements
 in the permit for aTSDF.;
   t4) Is jcontrary to previously stated
 policy whereby the EPA hinds itself to
 • the prhiciple of using '"permit-as-a-
 shield" {45 FR -33290, May 19,1980);   -
 and
   <5) Is disruptive to TSDF owner and
 .operator planning, burdensome to
 comply -with, and has an adverse effect
 on the availability and cost of control
 equipment.             ,
   Response; The practice known as  -
 "permit-as-a-shield" is derived froman
 exercise of ihe EPA's regulatory
 authority and was first codified in'the
 1980 implementrnigTegulations of the
 RCRA permit program (45 FR 33290,
 May 19,1-980). It is not a provision of
 RCRA and is therefore no part of the
 stattrtory mandate hy Congress to
 manage the Nation's hazardous wastes.
 Shell Oilv. EPA, 1950 F.2d at 741, 762
 (D.C. Chvl991J.Becauseltisa  ,
- regulatory and not a statutory provision,
 the EPA can modify the "permit-as-a-
 shield" practice in any situation where
 the Agency determines that the .practice
 does not serve the 'EPA's mandate to
 protect human health and the
 environment. For the final subpart CC
 standards, the EPA estimates that
 baseline nationwide excess cancer
 incidence resulting from exposure to
 TSDF organic emissions is 48 cases per
 year; In addition, total nationwide
 organic emissions fromTSDF are
 estimated to be approximately 1 million
 Mg/yr and, thus, contribute significantly
 to the formation of .atmospheric ozone.
 These health and environmental '
 impacts are very rugh relative to the
 impacts of emissions from other sources
 regulated under RCRA and the CAA.
 Accordingly, the EPA has determined
 that the health  and environmental
 impacts resulting from organic air
 emissions from TSDF are of a magnitude
 to warrant.narrowly rescinding the
 "permit-as^a-shieM" practice for this
 limited case.
 :' The "permit-^s-a-shield" practice is
 not a consequence -of Constitutional or
 statutory obligations of the EPA to any
 individual and its removal does not
 violate any substantive or.proceduial
 due process rights of individuals. The
 "permit-as-a-shield" practice was  .
 established hy regulations promulgated
. by the EPA and therefore can foe  .

-------
  Ma. 233 /
                                                                        6., 19SNI I (Rates sradf Itegntstiais ' •' 62911
  neces
•  does'not: vest th« regulated community/
  with a right to, a variance from all new
  RCRA BegiilatieHM. ^tirtbetMfgg, tb/e
  proposal put the public on notice that
 ' the EPAwas planning to modify the   •
  "permit-'asrarshdield" practice in. this
  rule, and the-pubhc has therefore; had an
  opportunity for meaningful comment ea
  the issue.  -.
 - The EPA continues t»believe that the
  fundamental components o£the RCRA>
  program and thai, by ami-large,
  compliance, with the permits, should,
  constitute compliance with the RCRA.
  program! Feu; the cither rulemakings for
  -which. &aEPA,ieacinded the"peiiQit-
            "-
.  detetiained that the risk to human
  health^ and theen-vironcoaentwas^too
  high to ai^w the practice to caatiaae  .
  : (for remaining permit periods), and
  required1 that alt TSDF complywith, the
  new requirements regardless of their
  peraaii statusu,Th&EPA has determined -
  that aHawing owners, and operators of
  permitted TSDF to; be shielded from.
 i compBai^e with the-rsgulatoiy
  requirer4ertta-Q:£sulipaEts.AA»BB, and
•  .CC standards: will allow excessively,
 . lugh riskk/Tadayi's action by the EPA
  does ni^|nfigate to \^ua of the/RCRA)
  permit program or the, "peEnaitas,~a-
  shieM" practice.Jhstead, theEFA is
 ' niakmgadistinction.between a.
  provision tnat is sufficfently pxatective
  in most cases.and one^that,, under
 t specific sfituatians, is not sufficiently
-  protective;
   The EPA disagrees with the
  commenters''claims that the permit
  modification process can, adequately
  accommodate tie timely
 'implementation of the subpart CC
  standard^. For the EPA to. apply the
  subpart CC standards into permits by
.  way of modifications wouM require a
  significant and unreasonable resource
" ccnrrmitment. FuTtherraorB, the fact that
  exfsring^ permits can te modified to
  incorporate hew-regulatory
  reqraremsnts fper 40 CFR 27O.41fa}f3).,
-which implements RCRA section ":
  3005 fcK»)] shows feat "permit-as-a-
 i shield" is.hatdly an iawtolate- principle.
  The ruehhaking simply accomplishes
 .nationally what a modificatkm would
 .accomplish rndrvidtraUy.  Accordingly,
  the EPA developed thesnbpazl AA, B%,
  and CC standards to he"iseli-
' implementing't.so that State, and
                                  its!
                                        faeifities wiS be;abfe to comply
                                        with the regulatory standards in tbe
                                        samew^aisal.iQtenHFStsEi!is feeilitfes
                                        must coB^fy; Modifying "pera&It-ast-a
                                        shieM" fiir^rese- rales eBmanatesffiiy '
                                        confusion OF ambiguity as to. which   •
                                        f ^JF is; smbjeefe to tfae requirerfleHts.
                                          As noted ay? the comraeBlras, the EPA
                                        j stated a policy fear
                                                                     rmit
                                        33290:)- However, Has, does. notmean
                                        feat the policy far
 nevex-agreed to "biudM itself toamy
 partiealar policy OE provision. Instead,
 the, EPA may adhere to a general
 practice or policy wiflt the
 understaiidirig that, if the cireumstances
 warrant and the EPA provides a rational!
 explanaf ion, it caa modify or rescind a
 particular provision. It should be noted",
 for.example, that Congress has smce "
 amended RCRA ta require tbat air
 emissions rromTSDFbeGOTite01fed, aiid
'.in the same- amendments provide that
 the EPA may reopen perasteto add:
 conditions reflecting new eoHtFoi .
 praetiees and to recfcess potential risks •
 posed by &effacaay plCRA sectioa
 3005(c)(3) and S. Rep. No. 2S4, S8&
 Cong,1st Sess. at aiJ.-Here, the- EPA is
 -determining that there are- excessively-
 high risks from 'these facilities, and
 therefore that feese more protective
 .provisions- sl»uld'l>e«»sne effective   -
 rrrMHedistefy,
   It should also be meted! that i&e-EPA
 does-, not intend to rescind ^permft-as-a-
 shieM*' oa« regtdar rar fie^ierrt basis- for
 other rulemakings. As stated^ eaaSfer^ the
 EP A- generally does view "perrrtit-as-a-
 shield'* as a: beneficial and fegilnnats   -
 part of. the. RCRA program and that^ hi
 most cases, it wiH apply .
 .  The EPA befieves that the
 csHmnenters. elamiing that remox'ing
 "permit-as-a-shieM" will be disruptive
 to TSDF'implementatioji plarmrng-are
 greatly overstatmg the adverse or
 disruptive effects-that an accelerated
 implementation will have on TSDF
 owner and operator planning and  .
 operations because the- control
• technologies for fe different kinds of
 management units are varied and
 wid^y availabfe. The EPA specifically
 considered the eosts^and economic
 ira'pacts of the-varioes'cBKtrol options in-
 the regulatory impact analysis for the
 pseppsed mle fRCRA-doeket entry
 number F-^l-CESaP^-SOO^S*):. Based on
 this analysis, the EPA foumd tot the
costs of installing- and operating' air
 emission control-, equipment required by
 the cdntroJ options are- profected to be '
 less thara t percent of the total cost of";
 hazardous waste. rnanagement at TSDF. -
 supply awail^»Kly/€«sstralnts-iestiitiHg
 fKHKk these rules sferotld be sfeort tesnt,;. .
 if at aKL Fustfrennora', TSJF own«» sotd;
 operiators: required te&staB ear emissioa
 control equipment to comply with tb»  '
 subpart CC standards are allowed up to
 am at JditionaJ 3& inbnt&s afterthe- rale-Is
 effeeitive date to eorapfetethe     .    '
 eqaipmenf des%i arid1 installation if
 they'|can document thert tbe air emission
 controls eaimot be instaiBed ancl   '
 operating by t&e eflective ctete", for  •
 reas«ms- such as- tbe nnavailabilrty of '
 control eqtHpmefrt;
   Also, the EPA expects, that many
"TSDF owners- and operators will choose
 to treat their hazardous waste earlier- in
 the rbtanagement sequence that they' now
 do tef reduce the organic content of the
 waste in accordance with one of the
 treatment requirements allowed for i»
 the final subpart CC standards, and thus
 avoid the- costBfinstaHing and      •
 operiiting- the controi equipment on the
 dowjistream tanks-, surface
 im-pfrarxdments, and containers. The
 EPA'also- eneotrrages- the use of
 pollution prevention techrriqnes; as a
 mearts- of reducing tbtrquantity of 'waste
 geneiratedv the organic cbncei^ratlon of
 the vraste, or the toxisity of coitslilusnts:
 in thewaste>.
                    '               '

                            date;
 repreiseHtatives &eas£t fee hazardous
 wast*? treatment iHdastry aotified the-
 EPA jof tbeir opimen t&at the draft
 requirements for- waste stabilization
 operzitiorjsis performed in tanks are
 ecoMbmically and' technically rnfeasible. •
 These draft .requirements are included  -
 in » May 19, 1994 interiin review draft
 of th«j.fiaal rule,, made publicly available
 in June 1994. {See RCRA docket entry
 miinljer F-94-CESP-S0050gi. J -'MorBovftr,
 the iiiidustry indicated that volatihzatfoii
 of or|>anie- eonstrtuents during
 stabi!S2:atiert operations are negligible.
 No- dijta were submitted to the EPA in
 sirppibrt of these assertions, fadustry
 representatives nevertheless feel
 strorrlgly that for the majority of waste  :
 streains n-eated by stabilization,, the
 organic constituents- in the waste are  not
 volatilized during the stabilization.
 procefss: Additionally., they allege that .
 for these same stabilization operations:
- flj It is technically infeasibie to
 comply- wrth the air emission control'.
 requirements for tanks irtthe subpart CC
 standards;: aid:
  (2 Jit is- not feasible to- treat organic
 wast€| prior to- stabilization, such ^that the
 volktile organic concentratibrt of the .
 waster eBterirfg the stabilfzatixm process
 wbuliibe below 100 ppmw, and the

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 62912  Federal Register / Vol. 59.  No, 233 7 Tuesday, December 6, 1994 / Rules and Regulations

 downstream units managing the waste
 (including the stabilization tanks)'
 .would thereby be exempt from subpart,
, CC tank control requirements. (See
 RCRA dodcetiuunberF-94-CESF-
 FFFFF.)
   These statements contradict the
 conclusions drawn by the EPA'based on
 site visits to observe hazardous waste
 stabilization processes, and experiments ,
 and studies conducted by the EPA to
 characterize waste stabilization
 processes and estimate associated
 organic emissions. The most recent EPA
 studies were mentioned in the Notice of
 Data Availability (see 57 FR 43171,   .
 September 18,1992) and were made
 available for public review and
 comment in tne docket for this
 rulemaldng (see RCRA docket number
 F-92-CESA-FFFFF). No comments
 were received concerning the validity of
 .these stabilization study conclusions.
   At the same time, however, and
 despite the inappropriate timing of  -
 industry's comments on this issue
 (compounded by the industry's failure
 to comment on the information
 presented by the Notice of Data
 Availability), the EPA has determined
 that it may be worthwhile to review
 pertinent data for current waste  .
 stabilization activities at hazardous
 waste TSDF. Industry has pledged to
 provide detailed data from an emissions
 teat conducted to measure organic
 emissions from a full-scale stabilization
 operation treating hazardous waste •.
 , streams. The test will be conducted -
 using the EPA approved.sampling and
 analytical methods,-and the volatile
 organic concentration of the waste
 streams will be measured using Method
 25D, with gas chromatography and with
 mass spectrometry (see RCRA docket •,
 number F-94-CESF-FFFFF). The EPA
 will accept until September 6,1995 all
 pertinent information and comments on
 the following limited issues: (1)
 Volatilization of organics during waste
 stabilization activities, (2) feasibility of
 treating organic wastes to destroy or
 remove organics prior to stabilization to
 immobilize toxic metals, and (3)
  alternative organic emission controls
  applicable to stabilization tanks.
 Persons interested in submitting
  comments or data pertaining to these .
  issues should notify the EPA of their
  intent by contacting Ms. Michele Aston
  at the address listed in the FOR FURTHER
  INFORMATION CONTACT section at the
> beginning of this preamble. Written ~
  information  and comments regarding
  the above issues should be mailed to the
  RCRA Docket Office (5305), U.S.
  Environmental Protection Agency, room
  2616,401M Street SW., Washington,
  DC 20460 Please send an original and
 two copies of all information, and refer
 to RCRA docket number F-94rCESA-
 FFFFF.           '       '      ,
  The EPA will assess all submitted
 information, and will make a rapid
 determination whether to amend the
 requirements under the subpart CC
 standards being promulgated.today for
' tanks in which waste..stabilization
 operations are performed. The EPA
 emphasizes that the current record does
 not support any amendment to these   .
 standards. However, if the EPA were to
 amend the requirements.fof stabilization
 tanks, the' amendment could include
 any of the provisions described below,
 a modification of today's promulgated
 requirements, or. possibly other options.
   The EPA may choose to amendthe
 final subpart CC tank standards such
 , that stabilization tanks could comply
 with alternative air emission controls to
 those included in'today's promulgation.
 The EPA will determine the
 appropriateness of such an amendment
 based on the evaluation of:
   ,(1) Information that is submitted
 relating to industry's comments that "it is
 not feasible to comply-with the
 technical requirements of today's final
 rule or to pretreat waste .prior to
 stabilization;
   (2).Information related to alternative
 emission controls that could be applied
 . to stabilization tanks for effective
 organic emission reduction;
   (3) Data related to the specific
 characteristics of hazardous waste that
 is stabilized at TSDE;,
   (4) Detailed information regarding the
 stabilization processes performed in
 TSDF tanks; and         "
   (5) Other related information;
   For a given stabilization tank to
 qualify for certain compliance  options,
 the EPA could require the facility owner
 •or operator to demonstrate (through
 specified testing, monitoring, .sampling,
 or other means) that organic
 constituents are not volatilized,during
 the hazardous waste stabilization
• operations performed in that tank. A
 similar requirement for biological
 treatment performed in tanks and
 surface impoundments is included in
 the final subpart CC standards {for
 example see 40 CFR 264.1085(a)(2)) as
 well as other air standards developed by
 the EPA under the Clean Air Act (e.g.,
 the Hazardous Organic NESHAP (59 FR
  19402, April 22,1994) and the proposed
  Off-Site Waste and Recovery Operations
  NESHAP (59 FR 51919, October 13,
  1994)). For biological treatment
  processes, which are generally
  acknowledged by the EPA as
  appropriate treatment for organic
  constituents in waste with respect to ,
  controlling organic emissions, the EPA .
 considers such a demonstration to be a  •
 reasonable requirement for certain
 compliance options. Therefore, the EPA
 also could consider it reasonable to
 require that stabilization operations,
 which the EPA does not consider
 appropriate treatment for organic
 constituents in waste with respect to
 controlling organic emissions, perform
 at least an equivalent demonstration for
 certain compliance options. If the EPA
 were to amend today's promulgated
 subpart CC tank standards to include
"such a demonstration, the required ,
 procedure could include any of the
 following, or possibly other procedures:
 whole .waste analyses, full-scale
 analyses, specified emissions
 monitoring, material balance
 calculations, temperature monitoring,
 and water content information.
   In light of .this supplemental comment
 opportunity, the EPA considers it
 appropriate to extend the effective date
 of the final rules for tanks that could be
 affected if the EPA chooses to modify
 the standards. Therefore, a separate
 compliance schedule is applicable to
 -tanks in which waste stabilization
 activities are performed as of December
 6,1994. It is important to note that all
 applicable requirements with respect to
 other units at a facility subject to the
 subpart CC standards will be effective   .
 June 5,1995. For these stabilization
 tanks, the effective date of the final rules.
 will be December 6,1995. As of the
 extended effective date for stabilization
 tanks.-each TSDF owner or operator and
 each hazardous waste generator subject
 to the final rules must either .install and
 operate the specified air emission  -.
 control requirements on all affected
 tanks used for stabilization, or begin
 performing the specified waste
 determinations and recordkeeping to  .
 indicate that a stabilization tank is
 exempted from these requirements.
 Under circumstances where required air
 emission control equipment cannot be
 operational by December 6,1995, an
 implementation schedule for  ,  '
 installation of the required air emission
 controls must be developed and placed
 in the facility operating records no later
 than December 6,1995. In such cases,
 the facility must have all air emission
  controls required by the final,rules in
  operation no later than June 8,1998.
  VII. Requirements of Final Rule'

  A.. TSDF Tank, Surface Impoundment,:
  and Container Requirements
    Today's action by the EPA
  promulgates air emission standards for
  TSDF tanks, surface impoundments,
  and containers as a new subpart CC iii
  both 40 CFR parts 264 and 265. Subpart

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                                                                                 if
sa, Kcx;2a3
                                                                                 j/ Rates
                                                                       62913
    CC. under 40. GFR parrt 265 estahfisfaes
    "*-~1"-J" •f— -'- --isaiuiepeKitQEsaf
                    Fi-As discussed in
                              ,
   and operators of |>firj^tted TSDF thai
  jhave been issued final psrmits prior to
  . - June 5
                   pennit is reffiiewed car
  ..reissued by the EPA.          .
  •   T,he air emission control requireinenis
  > of the. fiaalsunpaitCC standards in :40f
  'CFKpjpt 264 aadStTGER part 265 ares
   identical with the exception of the
  ; reportuag icquizemen'ts.. There are no,
  seporttogEeepiEeiBeiits'iB smbpart CG.
   undesiQ.CFR part 265.      :
     6, Gsnecal applicability, in general,
  . tnesubpatt CC standards apply to   •
   ECRA-permitted tanks, surface,
   impeachments,. and containers subject
   to 40 GFRpaEt264,subpaEt&|,JC,,OEl» '
  respectively, as welLaatointerim^status
                                  ,
     t coniaineirs.«ubjiect ta 40 CERJpait
.,    .,-subj9aE&kK,TCl, respectively,;  '
  However, certain specifictypes of TSDF
  •"tanks.- sur£ace.inipmiTMlmqnt5, and
  coniamexsaraHC* subject to the subpart
  CC standards under applicability    ...  .
  pravisibnsmotlierRCRA.regulatiaiiaas
  . TMeHaaiprovisHms included specifically
  -to the subpart CC standards,
    The siabpartCC standards do not  '
  apply to;those TSBF tanks,.suifeee :
 --impoiin|fTmRnts, fir-^Q-pt^n^ys. e-xcktded.
  from regulation. under 4Q GFR264-1, For
  exarapi^tTSDFowners.-aiui operators"
  are not required to ontaia a EtCRA
  permit&r tanks ortant systems that
  manage ^hazardous wastewaters.or
  wastewater treatmeat sludges and are
  subject to regulation, under eitner
  section 402 or 3O7(bJ of the  dean Water,
  Act Jreter to 40 CFR 264H(g}{6l and"4&
  CFR 265.ifcJ(IOjJ. Because these tanks •
  arejexempted from ^^RCRA, permitting
  recpirremfints, they axeiiot subject to. the
  reqvurements of 40 CFR parts 264 and
- -265..:Th«s,.the subpart-CGstandards-do
-  not apply to a TSDF tank that is
  considered to be a part of a "wastewateir
  treateeitt unit"-as defined in 4ft CFS
 -260^0. Similarly, tbje.suhpait:CC   '
: .standards do not apply, ta TSDF tanks,
 surface iiapQundments, .or containers/
 wh,en these units aie used for
 entergeney or spill naanagesient-
 activities in accordance witfaj 4O CFR
 264.1 (gKBKQ, or 4O CFR 265
 staadaxdsaEe only applicable-to
 containers wzith.a design capacity'
 greater than, or eo^ual to £K.l-ia *
 (approximately 2& gafl«HK), Thk	
 that any container that has, a design
, capacity les& than tkl m 3 is oat suijeet
    of tJae volatile organic-concentratioa of
    the hazardous waste placed in the-
    container.   ,   .   .. i  -  • '
      The safapart CC standards apply only
    to TSDF teaks;, surface iHapotradiaents,
    and containersi in wfaicb an owner or
    operator places hazardous waste on or
    after June 5,1995. .Wife respect fa
    suEfirce iFHpoandHientsi theEPA has
    already e^rpiaSttec? that RGEA  :
    regulatHmadfe not apply to         •
   Jmpoandinente-at whieh-Ihere-feno
    active mana^ment of6azardous waste
    after the rale's efiectfye date fsee-55 FR
    39«», September 27, f9QQ}. This-woaJd
    rochwJe bHpotmdments- t&at eease
    operation be&nsefee-rule's effective
    date, and tmpoundmeats that convert to
   • non-hazardous waste impoundments'
   before the  effective date. This latter
   class of impoundments includes those
   impoundments that contain hazardous
   wastes deposited before t&e rule's
   efiective date for which tha
   impoundmentis the final^^ disposal site
   ;for hazardous waste alreadym the unit
   (i.e., the impoundment is a disposal
   unit) and hazardous wastes are not
   actively managed in the unpoundmenl.
   Id. The principle iatoday's.ruleis
   consistent with-this ejeisting "-. .
  .interpretatjon. ..'    "
     The rationale for not applying the
   skbpaitCCstandaids.to tanks and,
   containers that do not ieceiv,e hazaEdoa
   waste after the effective-date is  -
   somewhat different. Under fiiesubpart
   CC standards, the-meedl to apply air;
  emissaoa coatEols: ta a- paEttEttlaE'taak, or
  container is dBtenan-Ded by/fee engaaie.
  content of the hazardous waste: at: a .--
  point priorto bemgpbeed; in the teak
  or container (tins, is diacassed in fee
  followingsectioBiuHder"Generai
  Standards'% In many/'steatkms wiieie
  existing tanks and containeES a* a TSDF
  already hold hazardous waste but na
  longer receive new wastes, a TSDF   •
  dwner'or operator wili fee- unable to.
 . specified in the rale; because- waste :
  samples eansant be collected at the
  required locattoasand the ov/ner or  '
  operator has inauffici^tt knowledge
  about the1 wasta. FmAexmore, even if a
  waste determination cam be: performed;
  for these tanks or oorttainers bat the
  units pfeseatly are uncoweE^i or have;
  Qtheropesmgsi mast if not afi of the
  volatile o^anics in the waste have mosi
  h'kely abeady been emitted; to the
  atmosphere. Thus,, the EPA derided that
  air emission control requirements
  should pi% apply to tba^ tanks and/
  Gontaiaers in which hazardous waste is
  placedi «m or after theeffieetiffe date of
         ' '     --••••        -"
    Was H>A decided notfejapply the  '
  subpartCC standards to a tank onceian
  owner or operator stops adding.  •  --.
  iaZardous waste to the unit aodbegms
  cfejsare pmrsaant to-ait approved closure
  pirn^because in many eases, nse of the
  re
-------
62914  -Federal Register I Voh 59,. No. 233 / Tuesday,' December 6,' 1994 / Rules and Regulations :
or Statelaws. 56 FR at 33497-98 (July  -
22,1991).    =..            '      •  .
  Coinmenters on the proposed subpart
CC regulations pointed out that these
were important issues deserving careful-
attention. The'EPA agrees. It is possible
that certain provisions of the air
emission requirements promulgated
today may be inappropriate,or
unnecessarily restrictive if applied to
remediation activities (see 58 FR 8660,
February 16,1993).
  The EPA notes that some measure of
control of air emissions from
remediation tanks, containers, and  .
impoundments will be assured during
the deferral period. Remediation
authorities of RCRA and CERCLA and
similar State authorities allow
overseeing officials to impose,1 on a site-
spedflc basis, appropriate air emission
controls on these types  of units, as well
as on other waste management units and
handling operations. In addition,
hazardous wastes containing organics
that are managed off-site (i.e., outside a
RCRA facility's boundary, or outside a
CERCLA site) would be subject to the
subpart CC management standards.
  Finally, the EPA emphasizes that the
deferral is indeed temporary. The issue
of appropriate air emission controls for
remediation units is likely to be
addressed in the context of the
Hazardous Waste Identification Rules
which are currently being developed by
the EPA. The issue is also potentially .
part of the third phase  of the RCRA
 section 3004(n) implementation. In-
 addition, waste remediation sites are on
 tho initial list of source categories under
 CAA section 112, and the EPA currently
 is scheduled to issue technology-based
 standards to controlemissions of
 hazardous air pollutants from this
 source (see 57 FR 31576, July 16,1992).
 Consequently, the EPA will be
 addressing this issue in the reasonably
 near future.                       '
   d. Radioactive mixed wastes. As
 explained in section IV.F of this
 preamble, the management of
• radioactive mixed waste at TSDF is
 subject to regulation under subtitle C of
 RCRA. The EPA reviewed the special
 nature of radioactive mixed wastes with
 respect to the air emission control  .
 requirements under the final subpart CC
 standards. In certain cases, the air
 emission controls used as the basis for
 the subpart CC standards are not
 compatible-with the NRG requirements
 for safe handling of radioactive mixed
 wastes. For example, drums used to
 store radioactive .mixed waste cannot be
  sealed with vapor leak-tight covers
 because of unacceptable pressure
  buildup of hydrogen gas to.levels that
  can potentially cause rupture of the
drum or create a potentially .serious"  .
.explosion hazard. This generation of

decomposition 'of organic materials (e.g., •
plastics) or aqueous solutions stored in
the drums. Consequently, a drum used  .
for storage of radioactive mixed wastes  .
must be continuously vented through
special .filters in accordance with
technical guidance issued by the NRC to
prevent the hydrogen concentration.'^
the dnim from reaching .dangerous
levels: The EPA is planning to further
investigate methods for effective control
of organic emissions from waste
management unite handling radioactive
mixed waste that are consistent with the
NRC waste management practices.

 2. General  Standards
   The final subpart CC standards
 require that TSDF owners and operators
 install and operate air emission controls
 on each tank, surface impoundment,
 and container subject to the rules .except
 when all of the hazardous waste placed
 in the unit is .determined to meet certain
 conditions. These conditions are based
 on-properties of the hazardous waste.
 determined at either one of two
 locations:   '          •'"     .
   (1) The point where a hazardous
 waste is generated or the point where
 the waste is  received by an offrsite.
 facility; or
   (2) The .point following treatment of a
 hazardous waste to remove or destroy
 the organics in the waste.
   a. Point of waste origination. Under •
 the final subpart CC standards, a TSDF
 owner or operator is exempted from  '
 • managing a  hazardous -waste in a tank,'
 surface impoundment, or container in
 . accordance with the air emission
 ' control requirements of the rule when
 the owner or operator determines that
 " all hazardous waste placed hi the unit
 has an average volatile organic
 concentration at the point of waste
 origination  less than 100 ppmw. The
 point of waste origination is defined in
 the rule with respect to the point where
 the TSDF owner or operator first has
 possession of a hazardous waste. When
 the TSDF owner or operator is the
  generator of the hazardous waste, the
  point of waste origination means the
  point where a solid waste produced by
  a system, process, or waste management
  unit is determined to be a hazardous
  waste as defined in 40 CFR part 261. As
  previously .stated, the term "point of
  waste origination" applied to this '
  situation is being used in a similar
 'manner to the use of the term "point of
  •generation" in waste operations air
  standards established under authority of
  the Clean Air Act in 40 CFR parts 60,  •
  61, and 63  of this chapter. When neither.
the TSDF owner nor operator is the
generator.of the.hazardous wastet point
of waste origination means the point •
where the owner or operator accepts
delivery or, takes .possession of the
hazardous waste,
  b. Treated Hazardous Waste. If a
.hazardous waste has an average volatile
organic concentration equal to or greater
than 100 ppmw based on the hazardous
.waste composition, at the point of waste
origination, then this waste is required
under the subpart CC standards to be
managed in accordance with the air
emission control requirements, of the
rule. Under these requirements, specific
air emission controls must be installed •
and operated on every tank, surface
impoundment, and container subject to
the rule used in the waste management..
 sequence from the point of waste
 origination through the point where the
 organics in the waste are removed or
 destroyed'by a process that meets or
 exceeds a minimum level of
 performance specified in the rule. In
 other words, once a hazardous waste is
 treated to .remove or destroy the  -
 organics in the waste hi accordance
 with the rule requirements, the
 subsequent downstream tanks, surface
 impoundments, and containers used to
 manage this particular hazardous waste
 are not required to meet the air emission
 control requirements of the subpart CC •
 standards.     ;  ••'.     ;   . ,   „ •;
  , The final subpart CC standards *
 provide TSDF owners and operators
 with several alternative provisions for
 determining when a treated hazardous
 waste is no longer required to be
 managed in tanks, surface      -
 impoundments, and containers meeting
 the air emission .control requirements-of •
 the rule. Treated hazardous waste
 provisions are specified in the subpart
; CC standards for-the following
 processes:       .             •
   •(1) An organic destruction,'biological
 degradation, or organic removal process
 that reduces the organic content of the
 hazardous waste and is designed and •
 operated in accordance with certain
 • conditions specified in the rule;
    (2) A hazardous waste incinerator that
  is designed and operated in accordance
  with the requirements of 40 CFR 264
  subpart O or 40 CFR 265 subpart O; or
    (3j A boiler or industrial furnace that  ,
  is subject to the requirements of 40 CFR
  part 266 subpart H.    ..
    A process that simply mixes, blends,
  combines, or aggregates a hazardous
  waste stream with other materials does
  not destroy the organics in the waste
  stream or remove the organics from the
  waste stream. While diluting a
  hazardous waste stream having a
  volatile organic concentration greater

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           Federal Register /TVol. ^59, No. 233  /.Tuesday, December 6, 1994 »/ Rules  and Regulations  ^62915
  than 100 ppmw with sufficient    ;
  quantities of other hazardous wasta  ;,T
 /streams, having a volatile organic  :. ..-'
• concentration less-than 100 ppmw (or
 . water 0r other low organic.content - •
 . materials) would reduce the volatile
. organic concentration of the resulting
- .hazardous waste mixture to a level,
 'below'100 ppmw, the total mass   .'.   -
  quantity of organicsinthe waste does
  not change since no organics were
  removed of destroyed from the waste.   •-
L The potential for organic emissions from
  handling the waste mixture is
  essentially the same as for.the   ..
  individual hazardous waste-streams
  prior to being mixed. Therefore, the EPA
 -does not allow-dilution of a hazardous
 •waste asa means; for complying with the
 requirements specified in the subpart
  CC standards for placing treated -
 hazardous'wasteln affected tanks,   .; •:  •
 surface impoundments, or containers-
 not using the required air emission
 controls; Consequently, when a
 hazardous waste is treated by an organic
  destrufction-or removal process and-the
 hazardous waste has been mixed 6r
 aggregated together with other          ;
 hazardous wastes or materials with a
-. volatile organic concentration less than
 100 ppmw priorto the point of waste
 treatment, the subpart: CC standards
 require that TSDF owners and operators
 meet special requirements to ensure that
 , organics in the hazardous waste have •
 actually been removed or destroyed. An
 owner or operator can choose from
 several alternative provisions to comply
 .with these requirements.        '"    '
   One provision requires that mixed
 hazardous wastes be treated by an .
 organic: destruction or removal process
 that reduces the volatile organic
 concentration of the hazardous waste to
 meet ajsite-specific treatment process
 exit concentration limit. This limit is
 determined by the TSDF owner or   .
 operator on a case-by-,case basis using   -
 an equation specified in the rule that
 accouritSifbr'the portion of the reduction
 in the volatile organic concentration in  •
 the resulting treated hazardous waste
 streamldue to dilution. To use this    ,
 equation, the owner or operator must -
 first determine the volatile organic
 concentration af the point of waste
 origination for each individual     '•••.•
 hazardous waste stream that -is  mixed
 together-prior to entering the treatment
 -process.'As an alternative to calculating •
 the exit concentration Hmit for  a
 treatment process, the subpart CG     -
 standards allow the owner or operator to
 treat the mixed hazardous wastes to a
 volatile organic concentration level that
 .is less than or equal to the lowest waste  •
 volatile organic concentration a]t the
 point :of waste origination for all of the  .
 individual hazardous waste streams
 mixed together prior to entering the
 treatment process,    .'•'.'.
   Another alternative in the subpart CC
 standards available to owners and      !
 operators allows mixed hazardous . .
 wastes to be treated using a single
'• process that achieves an organic       •
 reduction efficiency of 95 percent or
 greater on a mass basis, and reduces the:
 average vojatile^organic concentration of
, the resulting hazardous waste stream • .
 exiting the process to-a level less than .''.-
 50 ppmw. This alternative does not
 require the owner or operator to perform
 any volatile organic concentration waste
 determinations for the hazardous wastes
 prior to mixing, yet still accommodates
 the mixing of wastes that have,different
 volatile organic  concentrations. For a
 waste stream having a volatile organic
• concentration greater than 2,000, ppmw,
 requiring only a minim.um 95 percent
 reduction of the organic content in. the
 waste stream would not lower the  ,
 volatile organic concentration of the
 treated waste .stream to the-too ppmw
 level of the rule. However, if such a  •
 waste stream had been mixed together
 prior to-treatment with other waste
 streams having lower volatile organic
 concentrations, then the volatile organic
 concentration of the treated waste
 exiting the process could be less than   '.
 100 ppmw. The EPA does not consider
 such situations to be unlikely, and has
 therefore  chosen for this alternative to
 require an exit concentration for the '
 treated waste lower than 100 ppmw.
 The EPA considers an exit
 concentration of 50 ppmw, combined
 with a 95 percent treatment efficiency,
 to be an appropriate demonstration that
 the reduction in volatile'organic'  •
 concentration for a mixture of ~  '••
 hazardous waste streams has been
 achieved through destruction or
 removal of .organic constituents  in the •
 waste,:rather'than by dilution.
  The final subpart CC standards also
 provide another alternative that does'
 not require the owner or operator to
 perform any volatile organic
 concentration waste determinations for
 the hazardous wastes prior to mixing
 when the waste is treated by a biological
 process that destroys or degrades the
 organics contained in the hazardous
 waste to meet certain performance.
 requirements specified in the rule.
 These conditions are either of the
 following:               -"'-••
  (1) Achieve an organic reduction
efficiency for the biological treatment
process equal to  or greater than :95     .
percent, and achieve an organic
biodegradation efficiency for the process'
equal to of greater than 95 percent; or
    (2) Achieve a total actual'orgahic mass
  biodegradation rate for all hazardous
  waste treated by the process equal to or
  greater than the required organic mass
  removal rate for the process.
 .   Compliance with these .parameters is
 •determined iising the procedures
  specified in rule.       ;    -
    The EPA may at any tune measure or
  request that the owner or operator
  measure using Method 25D the volatile
.. organic concentration of a hazardous
  waste that is placed in.a tank, surface
  impoundment,-or container not using  .
  aiij emission, controls in accordance with
  the requirements of the subpart CC
  stalndards. Measurement results
  showing that the volatile organic . .
  concentration of the hazardous waste is
  equal to or greater than 100 ppmw
  co:ostitutes noncompliance with the
  subpart CC standards. However, in a   .
  case where the owner or operator has  .
  used an averaging period greater than l
  hoyr-for determining the volatile
  organic concentration of a hazardous
 wsiste, the-Regional Administrator may .
 consider information that was used by
 the owner or operator to determine the
 average volatile organic concentration of
 this hazardous waste (e.g., test results,
 measurements, calculations, and other
 documentation) together with the
 resiults of the waste determination in   '
 • determining whether the owner or. •
 operator, is in compliance with the
 isubnart CC standards. -•   ,

 3.'Waste Determination Procedures'
   A determination of the volatile  <
 .orjjanic concentration of a hazardous
 wajste is required by the subpart CC  '
 standards only when a hazardous waste
 is to be placed in a tank, surface .
 impoundment, or container subject to.
.' th«! rule that does not use air emission
 controls in accordance with the
 requirements of the rule. A TSDF owner
 or -pperator is not required to determine
 the! volatile organic concentration of the
 wa^te if it is placed in a tank, surface
 impoundment, or container using the
 reqiuired air emission controls.
   When the hazardous waste is
 generated as part of a continuous
 process, the owner or operator is
 required to perform an initial waste '
 dei;ermination of the average volatile
 organic concentration of the waste
 stream before the first time any portion
 of Ihe material in the waste stream is
 plajced in a 'waste management omit
 subject to the rule, and thereafter update
 thej information used for the waste  '
 determination:at least once every 12
 months following the date of the initial
 waste determination. When the  •     •:  '
 haSiardous waste is generated as part of
' a batch process that is performed

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62916   Federal Register / Vol. 59, No. 233  / Tuesday, December 6, 1994 /  Rules and Itegulatlons
  repeatedly but not necessarily   .. •
  continuously/the owner or operatoris
  required to perform an initial waste
•  determination of the" averagevolatile  .
  organic concentration for one or more .
  representative waste batches generated
  by the process before the first time any
  portion of the material in 1he these
.  waste batches is placed in a waste
  management unit subject to the rule,.
  and thereafter update fee information
  used for the waste determination at least
  once «very 12 months following -the date
  of the initial waste'determination.-For
  either case, the owner or operator is
  required lo perform a new waste
  determination whenever changes to the
  process generating the hazardous waste
  ate'reasonably likely to cause the
  average volatile organic concentration to
  increase to a level at or above 100
  ppmw. If an average volatile organic
  concentration is used, an initial waste
  deternunationxnust be performed for
  each averaging period.
 »  Waste determinations should be
  perforated for any waste that is
  genef&tedasapartofanunplanned  •
  eventoris'generatedasapartofan ,   •
  event that is not included in the normal
  operating conditions for the source or
  process generating the hazardous -waste.
  Examples of an "unplanned event
  include malfunctions that affect the
  operation of the processor that alter the
  composition of the waste or product.
  Examples of events that are not normal •
  operating conditions include
  maintenance activities and equipment
  cleaning. Normal operating conditions
  for the eource or process generating 
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     :     -   : I   federal -Register / Vol. 59, No.  233 / Tuesday. December 6, 1994  /  Rules and Regulations   62917

        - subpart CC standards for a tank in
         which! all hazardous wastes-placed.in- the
         unit h4s been treated tp'remove dr   ?   ;
         destroy organics in accordance with the
       .-requirements specified!in the general
  ;_   -standards. •
           Also|, the tank standards.dq not apply
      . -'-.to a tank in which biological
     -   -degradation of the organics in the     ' <
      ."'."' hazardous waste treated in the unit is
.  "     - demonstrated to achieve specific
        performance, levels. Either of the
•'••>;.•'-.  --;'following sets of conditionsmust be   •
'••-•V      demonstrated to qualify for this' -     •
        exemption:'(1) The organic reduction
        efficiency for the process is equal to or
       ;'greater man 95 percent, and the organic
      -  biodegradation efficiency for the process
        is equal .to .or greater than 95 percent; or
v/    . (2) the total actual organic mass
        biodegradation rate for all hazardous
,  •• •     'waste treated by the process is equal to
-•'.-. ..'. or greaterthan the required organic.
        mass removal rate.-The organic
        biodegradation efficiency or the organic
       , mass biodegradation rate for a biological
  ••; ;   treatment unit is determined by      •:.: -
        procedures specified  in the rule.
           The tank standards specify that the •; "
-" ••     owner or operator install and operate on
        .each affected tank one of ihe following
    ••... - air emission control systems: (l) A cover
        that is connected through a closed-vent
        system to a control device; (2) a fixed-
       .roof type cover with an internal floating
 ;"...-'•   ,-robfthat -is designed and operated in '--
  :    ' accordance -with the requirements
        equivalent to the new source  .
  ..      performance standard (NSPS) for
       .volatile organic liquid (VOL) storage; (3)
'•••••     an external floating roof that is designed
••• ,.      and operated in accordance with the
        requirements equivalent to the VOL -  ,
       . storage JNSPS; or (4) a pressure tank that
       • is designed to operate as a closed   "
     ;   system.! Under me subpart CC standards,
     .   an owner or operator is allowed to use
 ./•    -  a fixed-roof type cover (without any
        additional controls) for affected tanks
       under qertain conditions.
          Four (conditions must be met for a
       particular tank before use of a fixed-roof
       type coyer (without any additional
     •,  controls) is allowed under the subpart
       CC standards. First, the hazardous waste
       cannotbe mixed, stirred, agitated, or
     .. circulated within the tank by a process
  •    . that results in splashing, frothing, or
       visible turbulent flow oh the waste
       surface (except during limited
       circumstances. Second, the hazardous
       waste in the tank cannot be heated by
       the owner or operator except when
       necessary to prevent me waste from,
       freezing or to maintain adequate waste
     ,  flow conditions for continuous normal
       process operations. Third, the         .
       hazardous waste cannot be treated using
       a waste (stabilization process or a .
 • process that produces an exothermic
•reaction.'Finally, the maximum organic
  vapor pressure of the hazardous waste
  in the tank.must be less than the limit
  established in the rule by tank design
  capacity. For a tank having a design
  capacity equal to or greater than 151 m3
  (approximately 40,000 gallons), then the
  maximum organic vapor pressure of the
  hazardous waste in the tank must be
  less than 5.2 kPA. For a tank having a
  design capacity equal to or greater than
 75 m 3 (approximately 20,000 gallons)
 but less than 151 m?, then the       •
 maximum organic yapor pressure of the;
 waste in the tank must be less man 27.6
 kPa. For a smaller tank (design capacity
 less than 75 m3), the maximum organic
 vapor pressure must be less than 76.6
 kPa.
   The subpart CC standards require
 each cover opening not vented to a
 control device to be maintained in a
 closed, sealed position except at those
 times when a specific opening must be
 used to add, remove, inspect, or sample
 the waste in the tank or whenit is
. necessary to use the opening to inspect,
 maintain; or repair equipment located
 inside the tank. Also, safety devices that
 vent directly to the atmosphere may be
 used on the tank, cover, closed-vent
 system, or control device provided that
 the safety device is not used for planned,
 or routine venting of organic vapors.
 These safety devices are to  remain in a,
 closed position except when an, ,-• .  .' .
 unplanned event requires mat the
, device be open for the .purpose of  .   -
 preventing physical damage or     ,
permanent deformation of the tank,
: cover, closed-vent system, or control
device in accordance with good  .
engineering and safety practices for  -
handling flammable, combustible,
explosive, or other hazardous materials.
An example of an unplanned event is a
. sudden power outage.      ;

5, Surface Impoundment Standards

   The surface impoundment standards
establish the requirements for surface
impoundments using air emission
controls to comply wirn the general
standards of the .rule. No air emission
controls are required under the subpart
'•CC standards for a surface
impoundment in which all  hazardous
toaste placed in the unit has been
treated to remove or destroy organics in
accordance with the requirements    . -
specified in the general standards. Also;
air emission controls are not required
for a surface impoundment  in which
biological treatment of a hazardous
waste is performed under the same     -
conditions specified in the rule for  .
tanks.                          ' •
    The surface impoundment standards
  specify that the owner or operator
  install and operate on each affected
  surface impoundment a cover (e.g., air- .
 'supported structure) that is connected
  through a closed-vent system to a
  control device. Under the subpart CC
 . standards, an owner or operator is
  allowed to use a floating membrane
  cover (without any additional controls)
  for! affected surface impoundments
  under certain conditions specified in
 '. thei rule.'    '•••-<••
    The requirements under the subpart
  CC standards for surface impoundment ."
  air'emission control equipment are     "
  coiisistent wim the requirements for
  tanks.  .    -    •••,'-, ••

  6. Container .Standards   •
    The container standards establish the
 : requirements for affected containers
  (containers with a design capacity  .
  greater than or equal to 0.1 m3) usingair
  emission controls to comply with the  -
  general standards of the rule. No. air
  emission controls are required by the •"•-••
  subpart CC standards for any container
  with a design capacity less man 0.1 m3
  regardless of the volatile organic
  concentration of the hazardous waste
 ^placed in the container.
   Fjor affected containers used for , •   '
  storage', treatrnent, or handling of ':    ,
 . .hazardous waste, the owner or operator
- is required to use either:.{!) A container
 that is equipped wim a vapor leak-tight
 cov^r; (2) a container having  a design
 capacity less than or equal to 0.46 m 3
 (approximately 119 gallons) that is
 equipped with a cover and complies
 with all applicable U.S. Department of
> Transportation (DOTJ regulations on
 packaging hazardous, waste for transport
 under49CFRpartl78;«r(3Ja
 container that is attached to or forms a
 part of any truck, trailer, or railcar and .-
 thai: has been demonstrated within the
 preceding 12 months to be organic
 vapor tight in accordance with the
 procedure specified in Method 27. For
 a container in which treatment of
 hazardous waste is performed, the
 owner or operator is required'to place
 the container inside an enclosure .that is
 connected through a closed-vent system
 to ajcontrol device at all times mat the  •_•
 container is completely or partially
 uncovered during the treatment
 operation. Transfer of hazardous waste
 by pumping into a container having a
 design capacity greater than 0.46 m 3 is
 reqiiired to be performed using
 submerged fill loading.
   Title requirement for use of  leak-tight
 covers on containers is established by
 testing the coyer for no detectable
 organic emissions as determined using'
 Method 21 in 40pFR part 60, appendix

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                                                 Tuesday, December 6, 1994  /  Rules and Regulations
 A. The test is performed whenall
 openings in. the cover fe.g,, lids, bungs.
 .hatches, and sampling ports) are  ••  ,
 secured in a closed, sealed, position.
 "Under certain circumstances, the EPA
 has detennined'that a cover other than
 a rigid, gasketed cover can be used on  •
 a container that will meet the
 requirement for no detectable organic
 emissions. For example, the EPA has
 concluded that use of a tarpaulin with ,-
 a vaporrsuppressing foam is an
 acceptable cover forroll-off boxes used
 for short-term storage (e.g.. less than 30
< days) ofbulksolidmaterials(referto
 RCRA docket entry number F-«4-
 CESP-S00507 for specific conditions
 „ under which this type of cover is
 acceptable). .       ,      ;      •
    As an alternative to -using covers
 tested for no detectable organic
  emissions on drums and other
  containersvdth adesign capacity less
  than or equal to 0.46 m3, the subpartCC
  standards allow an owner or operator to
  place the hazardous -waste innrams -•
  meeting the DOT specifications and
  testing requirements under 49 CFRpart
   178. When a container meeting these -
  DOT regulations is used, no leak .
   detection monitoring narxecordkeeping
   for the container is required by the  .
   subpart CC standards. It is important to
   note that none of the exceptions to the
   49 CFR part 178 regulations other than
   the exception for  lab packs-used for
   combination packagings as specified in
   49 CFR 173.12(b) apply to a container
   for the purpose of complying with the
   subpartCC standards.
     The subpart CC container standards
   allow uso of a tank track or tank railcar
   that has been tested for organic vapor
   tightness within the preceding 12
   months in accordance with the
   requirements of Method 27. This
   method is a pressure test procedure
>   originally developed by the EPA for
   determining the vapor-leak tightness of
   a tank truckinto-which gasoline is
   placed. The EPA considers Method 27
   also appropriate  for determining vapor-
   leak tightness of lank trucks and railcars
    into which hazardous wastes containing
    volatile organics are placed. No Method
    21 leak monitoring or recordkeeping is
    required for tank trucks or tank railcars
    complying with this provision of the
    rule.                 -••''..•'
      When, it is necessary for a container
   ,to be open during certain treatment
    processes, the .subpart: CC standards
    require the container to be located in an
    enclosure connected to a closed-vent
    system with control device. The
    enclosure mustrbe designed to operate
    •with sufficient airflow into the structure
    to capture all organic vapors vented
    from the container and route the vapors
through the closed-vent system to the
control device. The enclosure may have
permanent or temporary openings to
allow worker access, passage of.
containers through the enclosure by
conveyor or other mechanical means,
entry of permanent mechanical or
electrical equipment, or to direct airflow
into the enclosure. Whenever an open
container is placedinside the enclosure,
the pressure drop across each opening
in the enclosure is tobe maintained at
 a pressure below atmospheric pressure -
 such that no organic vapors released
from the container can exit the .  ";
 enclosure through the opening.
   Finally, the container standards
 include 1he same unit, and control
 equipment safety venting provisions
 allowed under the subpart CC standards
 for tanks and surface impoundments.
 7. Closed-Vent System and Control
 Device Requirements
   The design and operating    ,    _
' requirements under the final •subpartCC
 standards for a closed-vent system with"
 control device are the same as those
 already applicable to TSDF owners and
 operators under sabpart AA in 40 CFR
 parts 264 and 265 with one exception. •
 The-sunpart CC standards require that
 , each control device achieve'at least a 95
  percent reduction in the total organic
  content of the vapor stream vented to
•'•  the device or, in the case of an enclosed
  combustion device, a reduction of the
  total organic content of the vapor stream
  to a level less than or equal to 20 ppmw
  on a dry basis coraected to 3 percent
  oxygen.             •     • •
    The standards do not require the use
  of any specific type of equipment or"
  add-on control device.The standards
  allow the owner or operator the
  flexibility of choosing the control device
  best suited for a control application
  based on the characteristics of the
  " particular organic vapor stream.
   Furthermore, the subpart CC standards
   do not require that each tank, surface
   impoundment, and container be vented
   to a separate control device dedicated to
   that particular unit. Vent .streams from
   several units can be combined and •
   discharged to a single control device
   that achieves the required, level of
   performance.
   8. Inspection andMonitoring
     The subpart CC standards provide
   exemptions from inspection and
   monitoring for specific circumstances  •
   defined in the nde. In the case of an
   underground tank, only those portions
   of the tank cover and those connections
   to the tank cover or tank body {e.g., fill
   ports, access hatches, gauge weBs, etc,)
   thafextend to or above the ground  !
 surface and can be opened to the
 atmosphere must be inspected and       '
 monitored. Leak'monitorihg using:
 Method 21 in 40 GFR part 60, appendix
 A, is not required for the following; (1)
 Drums that meet applicable DOT
 regulations specified in the rule; (2) tank
 • trucks arid tank railcars that are
 annually demonstrated to be vapor-tight,
 by Method 27 in 40 CFR part 60,  '
 appendix A; and'(3) closed-vent systems
 and control devices operated in vacuum "
 service (Le., equipment that is operated
 at an internal pressure that is at least 5
 *kPa below ambient pressure) or closed-
 vent system connections that are
 permanently or semi-permanently .
 sealed (e.g.. a welded joint between two
 sections of metal pipe or a bolted and    „
 gasketed pipe flange). Also, semiannual
 leak monitoring is not required for a  <
 cover opening that has continuously
 remained in the closed, sealed position  •
 for the entire period since the cover
, opening was last monitored.
   To ensure that emission control    .   .
  equipment is properly operated and
  maintained, the subpart CC standards
  require the TSDF owner or operator to
  visually inspect certain emission control
  equipment items semiannuatty. For
  example, emission control equipment
  covers on tanks are to be checked  .
  semiannualiy by facility employees to
  ensure that equipment is being used
  properly {e.g-, covers are closed and
  latched except when an opening must
  be used to add, remove, inspect, or
  sample the waste in the tank or to
  inspect, maintain, replace, or repair ,
   equipment located inside the tank or to
   vent gases or vapors from the tank) and
   the equipment is being maintained in
   good condition {e.g., no visible holss,
   gaps, tears, or splits have developed in
   covers).           "       ."   .  ,
     Continuous monitoring 01. control
   device operation is required under the
 ", subpart CC standards. This involves the
   use of automated instrumentation to
   measure critical operating parameters
   thatindicate whether the control device
   is operating correctly or is
   malfunctioning.-Semiannual leak
   detection monitoring using Method 21
   under 40 CFR part'60, appendix A, Is
   required for certain cover components
   to ensure gaskets and seals are in good
   condition and for closed-vent systems to
   ensure all fittings remain leak-tight In
   addition, with the previously noted
   exception of permanently or semi-
   permanently sealed connections, each
   closed-vent system must be monitored
   for leaks using Method 21 at least once
   per year.             -      .  .
      Special inspection and monitoring
    provisions are included in the final
    subpart CC standards for cover .fittings

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                                 / Vol. 53> Kg. 233 / Tuesday, Baeemfeer 6^ tag* f j&afes- and Jtegwtetfans-   G23JS
                                             contest eqcepmant
      a coypr;|fittingasJ''BnsafeiQ inspect:aaet  results; control
      jnonitorTif a worker would ba exposed.
      to-dang«HTrasi hazarfonsi or '"
      conditions when performing the
      ujspectiqn or menitoring. A,cover fitting
      thatrsidtesfgnatedias onsafe must be
      inspecteef ano^Hiaiiitored: as .frequently >,
      as practicable chning tbose times when
      it^s-safe'ttr inspect ami njonifertbe
      fitting; Smukuijr, a cover may be ;
  repairs^maaageinent of caiboiiiiemcwed'
  from eanbon adsorption systems;
  ideneificatiatt efiaeiBeistois-,
                                    2
                       l before Jane 5\ 1995.
      A coror;etting,t&atfe-des%iate*as • • - '
     -difficulttmitst h                '
     - Unit SEvojperatMna of the waste
     maHagereteKti»sEttiatis''geiier
     hazardous waste. Repair of thfe GontF&l :
     "time the^Eocessinntt 01 waste
     managenieittimit.t&atfe
V- •- •'•.• 9. ReeQr^keepmg-.Requiremenis
   •  record                  -  .
   ,  .faci]ity'aperating'lagsoEfiles.,This;
    : informaMon. is- fe he .Eeadily available for
     review by authorized representatives of
     -the •EPA.iCQnsistent with' 4&CFJ?264i73
   ' . and 40=.CPR265^a,.therude;reqaiEes
     that air emissiQn'' contrJokeqiiipment •"..
   -  design, zefcoEO^ and certain other records'
     be maintained in the facility operating
    • -record *H3.tiLfeeiMty etosuEev Reeearis
     .and results pa?* eCstaadardVreqirae tfeat
 the TS£a*" owner 6r-operator ;repair a  -
 of equipment fittings des^nated: as.
 onsafe OEdrffieufrtomomtor or inspect
   •At.a facility, wheieairennssioii
 control eqmpo3ienLrei|ui]SBd by the final
 rate; cannot be ito QpHratiott by Jims; 5r . '
                                                                            L-applicatiottwsHMSB hefted?to-..  •>'   ':
                                                                            •'sifisfftions-sttdi asdefeys in^^ate- permit;
                                                                                      . "Hre-extenskm: wcmld ngtbe
 equipment c
 unpotaikme
 15 calendar day* under. ceEtairt •  ''•',-'•'.'"'

.owner OP GperatorBiost docnmentSiafr
                                            to piepare am implemEEEtatBoa scfaedufe
                                            for the air emission eontrai equipment
                                            specifying dates by/wincii
                                           -•be;contplfitedl.bjf
                                           .. opjetatac ta ensarB th
     at fetrft, apermitappfication- was
 "subiinBtted'imreasoHab-ly fate^or permit -
, pKWsessHig' was.defeyed beeatise fee
 peHBitappHeatren; was-ntadeqtiate.
                                       of afaciStyin ftrterira status aEtSetfime-
                                                                           rut
                                      ^state)
                                       penntt. fefefe case, fee MPA wi
                                           -may -.come intecEnnpManceby        ...
                                            modifipmg. faciMty: proeesses Ca eliminate
                                                                               "
                          oiat feoro serafee
                                       requirements of 40 CFR2-79.33, wMefe

                  atfee poraftoiwaste  RCRA permit^. eoHsisterrtwiffifefe      "-
-Calendar dates;sEhaH:beeste3aM^edt far
•awardlof eoHtsaetsQE-issnarjEH of ;
 iostallatioB:
 cp
                                                                           - pemift appBeants-to-sabrnft feeir
                                                                            schedules of fmpfementatMHi witfr t&eir
                                                                           . ;perarftappliealioH5,'if fee-owner or
                                                                           .-operator casanot'fHapfernerrt fee.
                                      installation^ and, peiforrnance.of aigr-  ' •.•-
                                     - testing to demonstrate that thfi:insiallfid.
                                     -iair emission-control equipment meets .
                                     4he standards.   ; "      • ' ;.;
                                        TiieEPA. ggfy^iYT^fasij^q^j tr^ sorng
                                      cases; owneES OE Qperatjors may be" -
                                      - unable te meet tfifeiaipiEmentHtion date
                                     . for reasons bey^oad-feeJreantiiQl.. For'

                                      out that permit modMieaiiflns. may be  ••
                                      required to: implement necessary -
                                      •changesi.and,tha± modifestion-
                                      processes, cam be tengthy.. The EPA  •
                                      developed thislu-fetobeself-
                                      -Hspteiaeating aad to eliminate the-need
                                      for.permit modifications to-the extent
                                      possible; furthermore, in fee final rule
                                      feeimplementation^-periodhas .been
                                      extended from 2 to 3 years. Therefore,   ••'
                                      fee EPA expectsAat most if «c£ ali
                                      facilities wiH be abie to campty^
                                     . However^thfeEFA ackmawtedges that itf
                                      some- cases SfeaJje; pemrits-niay ha^e-tobe
                                      modified f&g^^Mbexc surface
                                      impouruciraerds artLreplaeed:'	..
                                      If fee- permit pxoeess is lengthy,, 'or
                                                                            issuance.
                                                                                 waste jfetiLRgs-ereliaracteiisScs in fee
                                                                                                      tanksi
                                       sublet to st*part €C standante. For
                                       ties* tmits^ &te eHeGtive date of tire;  '
                                       .stan«terds.wi:ll be the effective date of   •
                                       the itew Msting or characteristie. Owners
                                       or o|^eratprs of feese mn'ts: must institute- .
                                       controls by that date, ki-. eases when
                                       ownisrs: or operators eaimot' comply wHto
                                       the- appKeable requirements, of the
                                       subp|art CC standards by this datev they
                                       musl: install aiid operate required air
                                       .emission; control egmpinent BO- later '
                                       than J3Q months after the effective: date   '
                                       prov;ided that they prepare, a       ,    :
                                       implpmentation schedule (as, described  '
                                      above) for this, control equipment by :the
                                       effecffvedate;       -       •-;-..'•

                                       10. ReptHting Reqiuremeiits- .
                                        Thb final siibpapj? OC-standarda Ht.49  '
                                       CFR part 264-reqafrea TSDF  pwaeror
                                       operater to submit r^ierts to the- EE%    '
                                       only 'yuheacirctHristances-eceisr-at &e-
                                       facililiy resulting m nonconrpBanee: with,
                                                                 These axe

-------
 62920  Federal Register / -Vol.  59, No. 233.7 Tuesday, December 6/1994  /  Rules and Regulations
 no reporting requirements under 40 CFR
 265 subpart CC for owners and
 operators of interim-status TSDF.
   Each report required under the final
' subpart CC standards in 40 CFR part 264
 is to be submitted to the EPARegional
 office having jurisdiction for a particular
 TSDF location. The report is required to
 be signed and dated by an'authorized
 representative of the facility owner or
 operator.
   A TSDF owner or operator subject to
 tho requirements of 40,CFR 264 subpart
 CC must report to the EPA all   ,  •
 circumstances resulting in placement of
 a hazardous was.te in a tank, surface
 impoundment, or container subject to  •
 the rule and not using air emission
 controls required by the rule when
 either of the following conditions occur:
 (1) The hazardous waste has a,volatile
 organic'Concentration equal to or greater
 than 100 ppmw as determined'on a
 mass-weighted average basis at the point
 of waste origination, or (2) the process
 used to treat the hazardous waste fails
 to meet the applicable conditions-
 specified in the rule. The owner or
 op erator must submit a written report
 within 15 calendar days of the time that
 tho owner or operator becomes  aware of
 the circumstances.
   A TSDF owner or operator subject to
 the requirements of 40 CFR part 264,
 subpart CC and using a control  device
 in accordance with the requirements of
 the rule is required to submit a'
 semiannual written report to the EPA.
 This report is to describe each   ,
  occurrence during the previous 6-month
 • period when a control device is
  operated continuously for 24 hours or
  longer in noncompliance with the
  applicable operating values defined in
  40 CFR 264.1035(c)(4) or when a flare is
  operated with-visible emissions as     ,
  defined in 40 CFR 264.1033(d). A TSDF
  owner or operator is not required to
  submit this report for a 6-month period
  during which all control devices at a
  facility subjectto the subpart CC,
  standards are operated by the owner or
  operator so that during no period of 24
  hours or longer did a control device
  operate continuously in noncompliance
  •with the applicable operating values
  defined in the rule.
  B. TSDF Miscellaneous Unit
  Requirements
    The EPA permits miscellaneous units
  at TSDF on a case-by-case basis" with
  terms and provisions as needed to
  protect public health and the
   environment through  generic  .
  performance standards specified in 40"
   CFR 264.601. Today's rule amends
   § 264.601 to include the air emission
   controls required by the standards
 under 40 CFR part 264, subparts AA,
 BB, and CC among the "appropriate"
 controls a permit writer may require for
 a miscellaneous unit.    - • •
   Application of the air standards under
 40 CFR part 264, subparts AA, BB, and
 CC to subpart X miscellaneous units  •
 will require determining which one of  v
" the waste management unit categories
 (e.g., tank, surface impoundment, ,  „
 container), if any, is most similar to the
 miscellaneous unit As an example,  .
 hazardous waste is sometimes stored or .
'treated in a miscellaneous unit
 consisting of a flexible, synthetic liner
 supported by an above ground metal
 frame (instead of a depression formed of
 earthen materials'as is'the case for a  •
 surface impoundment). Placing
 hazardous waste containing organics in
 this type of miscellaneous unit could
 result in significant organic emissions  -
 from the exposed waste surface  /"
 comparable to those resulting from
 placing the waste-in a similar size
 surface impoundment. Using the-types
 of air emission controls applicable to
 surface impoundments (e.g., floating
 membrane cover) would reduce organic
 emissions from this type of-
 .miscellaneous unit. Therefore, in the
 case where the miscellaneous unit is
 determined to resemble a -surface
 impoundment, a subpart X'permit may
 baissued that includes air emission .
 control requirements for surface
 impoundments under the subpart CC •
 standards. The same application of the
 rule would be true for a miscellaneous
. unit used to manage organic-containing
 hazardous waste and determined to be
 similar to a tank or a container. '.
                 4                 *
  C. 90-Day Tanks and Container's
 Requirements
    Today's final rulemakihg amends,
  subparts I and J of 40 CFR part 265 to
  add a requirement that SO^day tanks and
  containers covered by these subparts
  also have to comply with air emission
  control requirements in subparts AA,
  BB, and CC. The rule adds these
  provisions as conditions with which
  generators must comply to notbe
  required to obtain a permit for onrsite
  tanks and containers used to accumulate
  hazardous waste.
  D. Amendments to Subparts AA and BB
  Standards
    Today's action adds new
  requirements for TSDF owners and
  operators using activated carbon
  adsorption systems to comply with the
  control device requirements of subparts
  AA and BB under 40 CFR parts 264 and
  265. These requirements specify the
  procedures for managing the spent  ;
  carbon removed from the control  '    ..
                                     i
devices^ and are consistent with the •  •
requirements promulgated today in
subpart CC under 40 CFR parts 264 and
265.
VIIL Implementation of Final Rule

A.-Existing Sources
   Today's action by the EPA modifies '
.the "permit-as-a-shield".practice for
implementation of RCRA rules by
owners and operators, of existing TSDF
for which-final RCRA permits have been
issued by the EPA. The EPA is
amending 40 CFR 270.4 to require that^
owners and operators of TSDF that have
been issued final permits prior to June
5,1995, comply with the air standards
under 4p CFR p&rt 265, subparts AA,
BB, and CC until the facility's permit is
.'reviewed or reissued by the EPA. This
amendment eliminates application of
the "permit-as-a-shield" practice for
these air standards but does not require  '
that the EPA'or the TSDF owner or
 operator initiate a permit modification
to add the requirements of 40 CFR part
 264, subparts AA, BB, or CC. The EPA
believes that this will minimize the
 administrative burden on the TSDF
 owner or operator as well as limit the
.additional burden on the permitting
 resources of the EPA. However, when a >
 permit is reopened or subject to
 renewal, or when a TSDF owner or
 operator submits a Class 3 modification
 request pertaining to an existing unit or
 addition of a new unit subject to these
 standards (e.g., a modification regarding
 a tank, surface impoundment, or
 container), then the applicable
 requirements of 40 CFR part 264,
 subparts AA, BB, andCC shall be .
 incorporated into the permit conditions.
   The subpart CC standards
 promulgated today are implemented  on
 the following schedule by owners and
 operators of existing TSDF (except'for *
 tanks in which waste stabilization
 activities are performed as of December
 6,1994, as explained in section VI.F  of
 this preamble):          '   :     •
   (1) All owners and operators of
 existing TSDF become subject to the
• requirements of 40 CFR part 265,
 .subparts AA, BB, and CC effective June
 5 1995                       '
   ' (2) Beginninglune 5,1995, each TSDF
 owner or operator is. required to be in
 compliance with 40 CFR part 265,
 subparts AA, BB, and CC.
 Implementation of the leak detection
'• and repair program required by the   •  ,
 subpart BB standards is required by this
 date. At a facility where the air emission
 controls required by the subpart AA,
 BB, and CC  standards are not in place,
 the Owner or operator must have one of'
 the following in the facility's operating

-------

recordr^te Hnpfementation schedule for
thearremfesian corrtrofenr accordance
with the recordkeeping requirements of
theratejOTiae^faciBly's, waste
determiaation that iadieates that air
emission, controls-are nat required.
  taf-Nq-later thaH DBcember 8", 1997,
      .^, B> andCC
   nrast foe installed ancf is operatranY
    AB fisal permits, or Class a permit
   modifications, issued' by the- EPA after
   JtHre-5, 1995, must incorporate the
   requirements 0f 40- CFR :part 264,
   sufepartstAA.M', and CCT&e- owner  -'-
   and eperatOT of an'interim status TSBF
   whohaye sufenijltetS Part B applications
   to the EPA but have not received adrait
   permit as of June 5, 1995, are required?
   to modify •the;Psrt B apph'eatiari t&
   incorpe^atethe requirements of 40 CFR,
   paft264> subparts AAtBB, and CC p;ribr
    :
  EFft.
  operate;have>Teeeiyed a draft permit as
 " of June- 5i J 985^ then1 tfaVrequrrements
 . .of 40, CPK part 264, subpartsAA, BBy
 • and CC must be incorporated mto'the
  Administrator may estahlish, on a case-
  :.by-case Basis, a reasonable date for  .
  -submitta;F of iherevised Part'B
  application.            -  r   ':
    AH existing sofid: waste-BaaHagiaaient
  unit {iswdfeeifi^J may beetHHB-a   ;;   '•
  -hazardous' wasterflanagemeat »nrt- far "
  feciM^^eqa&Hig^ff RORA^perraft wben
••'. a waste becomes1 newly listed SHT    •
  ideirtified' as nazardbuSi Ovwiers and
  operators of fSBF not previeusiy
  *requirnig'a-R(CRA permifrw&o have
  -existiuag-imftshandBHg newly listed1 or
  identifiedi hazardous1 waste- can 'submit -a
  Part'Aapjjficatiem'aBd'gaiirinteirirtt .  ,
 : status. ThVaa?'StaHdaEEf»being        :;
• • promulgated todayare-implefflented1 at
  these facilities en the following
  •schedule:               , •       •   . • •
  waste fe Bsted or idientiffed as
  ihazardous waste, tne^stendards become-
  'effective; alLfaciMties become- subject-to
  tfae-,standards...        •            •
    (2) Beginning Jane .5, 1995»,eaefi T&W
 .-• ownerorj operator fe required tfrbe- m.
 ' campEarice-wfifr.the'sTibpart AA^'BB,
 -and CC-sjandards.At'-afaiGiB^r where.
 , theairemissicHi eontrofe required by t&e.
 : subpartAA^BB; antfCC'Standardsare
  not fir pfece; the owneror operator must
  haveonetof the-.fbHowmg in the
                                          •|3)TNb later than December 8,
                                        the controls required1 by the standards
                                        -musTbe installed at all facilities;
    All air ermssion controls required ^by
  40 CFR part 264, subparts- AA, BB, and"
  CCrrrast be-in platw-and*' operating- upon
  startup of a new TSDR Under40;eFR
  270.10, owners and operators olnew
  TSDFare required to submit part A and
  Part B permit applications amd to
  receive a feai penait from the EPA
  'priortonoRstreeHoH-of the feeilfty. Tbe-
  Part B application for^a new facility
  must incorporate the requirements of 48
  CFR part 264. Owners and operators
  who have-submftted'a.Part B application
  for anew TsJiJF bufrliave not been
  issued a final pennft as- of June 5, 1995,
  are requiped to-modMy tbefr Part B
  appBcation&toincCTrporatethe
  requirements ef 4Q CS^R part 264; :
                      '     '
 i < AppEcabitey ofterie is Auft
 States,             -      ;
   Under RCRA section 3006, the EPA
 may .authorize a qualified State to '.,< .
 administer ajKlenfffirc&th.e;RCRA •
 program watiaQ;tteStetettefe-tQi4
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 62922
Federal Register / Vol. 59,.No. 233 / Tuesday, December 6, 1994 /  Rules and Regulations
 authorization 12 months after the,
 effective date of these standards must
 include standards equivalent to these
 standards in their applications. The.40
 CIFR271.3 sets forth the requirements a
 State must meet when submitting its
 final authorization application.
   States with authorized RCRA
 programs may already have
 requirements similar to those in today's
 rule. Such State regulations have not
 Leon assessed against the Federal
 regulations being finalized today to
 determine whether they meet the tests
 for authorization. Thus, a State is not
 authorized to implement these
 requirements as RCRA requirements
 until the State program modification is
 assessed against Federal requirements
 and approved. Of course,'States with
 existing standards may continue to  -
 administer and enforce their standards
 as a matter of State law. In
 implementing the Federal program, the
. EPA will work with States under  ..
" cooperative agreements to minimize
 duplication of efforts. In many cases, the
 EPA will be able to defer to the States
 in their efforts to implement their
 programs, rather than take separate
 actions under Federal authority.
 K. Test Methods
 A. Method 25D
    Method 25D in 40 CFR part 60,
  appendix A is the applicable test      ,
 method for the determination of the
  volatile organic  concentration of wastes.
  Method 25D was originally proposed as
  a part of this rulemaking but was
  subsequently promulgated in a separate
  rulemaking (see 56 FR19402, April 22,
  1994). Responses to comments received
  on the proposed Method 25D as part of
  this rulemaking are presented in the BID
  for today's final rule. Additional     * •
.  comments and responses relevant to the
  proposed Method 25D that were
  received as part of other EPA
  rulemakings are available in Air Docket
  Number A-90-23 located at the EPA's
  Air and Radiation Docket Information
  Center, Waterside Mall, room 1500,1st
  Floor, 401M Street, SW., Washington,
  DC 20460.       ,
    The sampling requirements in Method.
  25D have been changed since proposal.
  The promulgated version of Method 25D
  -requires that samples of waste be   ,
  collected from a source following
  specific procedures for sampling a
  single-phase or well-mixed waste, a .
  multiple-phase waste, and solid
  materials. Each sample is suspended in
  an organic/aqueous matrix, then heated
   and purged with nitrogen for 30 minutes
   to separate certain organic compounds.
   A portion of the sample is analyzed for
                            carbon concentration, as methane, with
                            a flame ionization detector. The other
                            portion of the sample is analyzed for
                            chlorine concentration, as chloride,  ••
                            with an electrolytic conductivity
                            detector. The volatile organic    $ '  .•
                            concentration of the waste is then
                            computed as the sum of the measured
                            carbon and chlorinecontents.

                            B. Method 25E    •   ...

                              Method 25E is. the applicable test    ,.
                            .method for determining the organic
                            ' vapor pressure of waste managed-in
                            tanks. The version of Method 25E .
                            promulgated today in 40 CFR part 6.0,
                            appendix A,-is the same as the proposed
                            version with one addition to the  •
                             sampling requirements to provide for
                             sampling waste in a.tank. Method 25E
                             requires collection of a waste sample in
                             a he'adspacesample vial and transfer of
                             the vial to a balanced pressure
                             headspace sampler. The headspace
                            , vapor of the sample is analyzed for
                             carbon content by a headspace analyzer,
                             which uses a flame ionization detector.

                             X. Administrative Requirements

                             A. Paperwork Reduction Act
 data needed, and completing and ,
 reviewing the collection of information.
   In general, a respondent is not '•-•
 required to submit any. reports to the
 EPA unless certain events occur at the
' respondent's facility in which a
 hazardous waste, is improperly managed
 in a unitnot using the required air
 emission controls or a control device
 malfunction cannot bfe corrected by the
 respondent within 24 hours of being
 detected. Thus, the: EPA expects that •'
 many respondents complying with this
 rule will have no reporting burden. On
 a nationwide average basis, the public  -
 reporting burden resulting from today's.
 action is estimated by the EPA .to be -  .
 . approximately 2 hours per year per   .
 respondent.  .     '
   Send comments regarding the burden
 estimate or any  other aspect of this •
 collection of information, including
 suggestions for reducing this burden to  '
 Chief, Information Policy Branch; EPA;
 401.M St., S.W. (Mail Code 2136);
 Washington, DC 20460;'and to the
 Office of Information and Regulatory-
 Affairs, Office of Management and -..
 Budget, Washington, DC 20503, marked
  'Attention Desk Officer for EPA."
                               The information collection
                             requirenients.iri these rules have been
                             •approved by the Office of Management
                             and Budget (OMB) under the Paperwork
                             Reduction Act, 44 U.S.C. 3501 et seq.,
                             "and have been assigned control number
                             1593.02.
                               To aid the EPA-with enforcement of
                             the rule being promulgated today, TSDF
                             owners and operators and hazardous
                             waste generators, subject to today's
                             action are required to record certain
                             information in.the on-site facility
                             operating logs or files. The  •         :
                             recordkeeping requirements for each
                             respondent (i.e., person subject to the
                             rule) will.vary depending on a variety  -
                              of site-specific factors. These factors
                             include: the number of tanks, surface
                              impoundments, and containers subject
                              to the rule in operation at the
                              respondent's facility; the" number of
                              hazardous waste streams managed at the
                              facility; the type of waste determination .
                              methods selected by the respondent;
                              and the type of air emission control
                              equipment selected by the respondent to
                              comply with the requirements, of the
                              rule. •
                                This collection of information has an
                              estimated reporting burden averaging
                              1.4 hours per response and an estimated
                              annual recordkeeping burden averaging
                              62.5 hours per respondent. These
                              estimates include time for reviewing
                              instructions, searching existing data
                              sources, gathering and maintaining the1
 'B. Executive Order 12866 Review
    Under Executive Order 12866, (58 FR
  51735, October 4,1993) the Agency
  must determine whether the regulatory
  action is "significant"-and therefore"
  subject to OMB review and the
  requirements of the Executive Order.
  The Order defines "significant
  regulatory action" as. one that is likely
  to result in a rule that may:
    (1) .Have an annual effect on the.  '
  economy of $100 million or more or
  adversely affect in a material way the
 ' economy, a sector of the economy,
  productivity, competition, jobs, the
  environment, public health or safety, or
  State, local, or tribal governments or
 • communities;
    (2) Create a serious inconsistency or
  otherwise interfere with an action taken
  or planned by another agency;       >
    (3) Materially alter the budgetary
  impact of entitlements, grants, user fees,
  or loan programs or the rights and
  obligations of recipients thereof; or
 .   (4) Raise novel legal or policy issues
  arising out of legal mandates, the
  President's priorities, or the principles
   set forth in the Executive  Order."
    Pursuant to the terms of Executive
   Order 12866, it has been determined
   that this rule is a "significant regulatory
   action" based on the estimated annual
   cost of the rulemaking to  the economy  ;
   (i.e., the EPA's estimate of nationwide
   annual costs for the subpart-CC
   standards exceeds $100 million). As
   such, the EPA has submitted'this action

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        •^:f: federal Register -JJVoi. -59. No. 233 /^Tuesday. December; 6, .1994 ^j Rules  and Regulations
                                                                      62923
   - to OMB for review. Changes made .in  •.
    response to OMB suggestions or
  ; recommendations will.be-documented
 V '. in the p'ublic'-record".'-_- "• ,-,••.-.- -.:.•/.   .;.•;-

   "C, Regulatory. Flexibility Act
     Under the Regulatory Flexibility Act
    (5 U.S.C 601 Bt seq.), whenever a
   Tederal agency publishes any proposed
-    or final rule in the Federal Register, it
    must prepare a Regulatory Flexibility
.:  'Analysis (RFA) that describes the
   'impact of the rule on small entities (i.e.,
   •small businesses, organizations,-and
:  governmental jurisdictions). This"
    analysis is not necessary, however, 'if
  . the agency certifies that the rule will not
 .  have a significant economic impact on
   a substantial number of small entities.
     The EPA has established guidelines
   for determining-whether an RFA is •
   required for the EPA nilemaking. These
   guidelines state that, if a preliminary
   analysis indicates that a proposed
   regulation-would affect 20 percent or •'. "
   more of j"small entities", then an RFA
   is to be prepared. In addition, these
  '- guidelines |are used to evaluate if a- -   ;
   regulation will have a "significant
   impact"; on small entities. A regulation
   is considered by the EPA to have a
   "significant impact" if any-one;of the
   following four criteria is met:   .
    . (1) Annual compliance costs increase
   the.releyant production costs for small
   entities by more than" 5 percent;  •
     (2) This ratio of compliance costs'to  '
   sales will be 10 percent higher for small
   entities than for large entities;
     (3) Capital costs of compliance will
   represent a significant portion of the
   capital available to small entities, taking
   into account internal cash flow plus .
   external [financing capabilities;  -
     (4) Costsjof the regulation will likely
   result iniclosures of small entities.
     The EPA used thie economic impact
  rmodel "developed for the RIA to estimate
 ,  the effects of today's rulemaking on
   small enitities (refer to Chapter VI of the
•  RIA .for additional details). The results
   of this analysis indicate that the, effects
  'of the air-standards on small entities are
 • minimall The number of affected small
  entities is insubstantial, and the impacts
  ^re insignificant.             .
:   Pursuant to the provisions of 5 U.S.C.
  605(b), I hereby certify that these final
  rules promulgated today will not have a
  significant impact on a substantial
  number of small entities. Therefore, an
  RFA is nbt required for this rulemaking.
  D.Dockert
    Three RCRA dockets contain
  information pertaining to today's    •
  rulemaking:-
    (1) RCRA docket number F-91-CESP-
  FFFFF, which contains copies of all BID
 . references and other information related
  to the. development of the rule up
  through proposal;
    (2) RCRAdocket number F-92-
  GESA-FFFFF, which contains copies of
  the supplemental data made available
  .for public comment prior to ' •      '
  promulgation; and                    ,
    (3J RCRA docket number F-94-CESF-
 • FFFFF, which contains copies of all BID
  references and other information related
  to development of the final rule      -.,
.  following proposal.
  The public may review all materials in
  these dockets at the EPA RCRA Docket
  Office.
   .The EPA RCRA Docket Office is  •.'/
  located in room 2427'of the U.S.
  Environmental Protection Agency, 401
  M Street SW., Washington, DC 20460.
  The Docket Office is open from 9 a.m.
  to 4 p.m., Monday through'Friday,
  except for Federal holidays. The public
  must have ari appointment to review
  docket materials. Appointments can be
 - scheduled by calling the Docket Office
  at (202)  260-9327. An individual may
  copy a maximum of 100 pages of ;
  material from any ;qne regulatory docket
  free of charge. Additional pages of..  -
 material from the docket may be copied
  atacharge of $6.15'per page. .>/  .."•
 XL Legal Authority
   These regulations are promulgated
 under the authority of sections 2002, "
 3001-3007, 3010, and 7004 of the Solid
 Waste Disposal Act of 1970, as amended
 by RCRA, as amended (42 U.S.C. 6921-
 6927, 6930, and 6974).   "     ' M'
 List of Subjects  ."'      •  . .'  ' •   '
 40CFRPait9       ;      ;'
   Environmental protection, Reporting
 and recordkeeping requirements.
 40CFRPart€0            -
.  Air pollution control, Test method,'
 'Vapor-phase organic concentration,
 Volatile  organic concentration, Waste,
 Waste testing.
 40 CFR Part 260
   Air pollution control.'Incorporation
 by reference.

 .40 CFR Part 262        •
   Accumulation time, Air pollution
 control, Container, Tank.

•40 CFR Part's 264 and 265
   Air pollution control, Container,
 Control device, Hazardous waste,
 Incorporation By reference, Inspection,
.Miscellaneous unit, Monitoring,
 Reporting and recordkeeping
requirements, Standards, Surface  .
impoundment, Tank, Waste         I
 determination.:       •   -  "  •
  40 CFR Part 27Q           '   ;

  .  Administrative practice and      ' .'
  procedure, Air pollution control,
  CoEifidential business information,
  Hazardous waste, Permit, Permit-
  modification, Reporting and
  refiprdkeeping requirements.

  40 CFR Part 271

   - Administrative practice and  .  '
 .procedure. Air pollution control,
 .Confidential business information,'
  Hazardous waste, Reporting and
  recclrdkeeping requirements.       .
''" Dzited: November 15,1994.  /„    '  :
  Carcil M. Browner,
  The {Administrator.         •        •'     ,
   For the reasons set out in  the
  preamble, title 40, chapter I, parts 9,60.
  260,| 262, 264, 265,270, and 271 of the
  Code of Federal Regulations are
  amended as follows:.                 '

  PAFIT ^—OMB APPROVALS UNDER
 THE .PAPERWORK REDUCTION AdT

   i.rThe authority citation for part-9
 continues to read as follows: • \       •
   Alithority: 7 US.C.;135 et seq., 136-^136y; -
 15 UkS.C. 2001, 2003, 2005, 2006, 2601-267,1;
 21 UIS.C. 331j, 346a, 348; 31 U.S.C. 9701; 33
 P.S.C. ,1251 etseq., 1311,1313d, 1314,1321, '
 .1326i 1330", 1344,1345 (d) and (e), 1361; E.G.
 11735, 38 FR 21243, 3 CFR, 1971-1975
 Camp. p. 973; 42 U.S.C. 241, 242b, 243, 246,
 300f,i300g, 300g-l, 300g-2, 300g-3, 300g-4,
 300g75, 300g-6, 3QOJ-1, 300J-2, 300J-3, 300J-.
 4, 30I3J-9,1857 et seq., 6901-6992k, 7401-
 7671IJ, 7542, 9601-9657,11023,11048.
     f " ^     "  • '        ' '     ' '  -
   2. Section 9.1 is amended  by adding
 new. entities in numerical.order to the - -
 table: under the indicated headings  to
 read las follows:
     i.        -     .      -      '
 §9.1 i OMB approvals under the Paperwork
 Reduction Act
       40 CFR citation
                        OMB con-
                         trol No.
 Standards for Owners and Operators of
  Hacardous  Waste Treatment, Storage,
  •and Disposal Facilities
 264.1
 264.1
1089
1090
2060-0318
2060-0318
 Interim Status Standards for Owners and
  Operators of  Hazardous  Waste Treat-
  ment, Storage, and Disposal Facilities
265.1(390 	..........V...:...>.,....L-  2060-0318

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62924   Federal Register / Vol. 59, 'No.'233. / Tuesday, -December  6,-1994- / Rules .and Regulations^
PART 60—STANDARDS OF
PERFORMANCE FOR NEW ..    .    .
STATIONARYSOURCES
'  3. The authprity citation for part 60
continues to read as follows:   •      '-
  Authority: Sections 111, 301(a) of the •
Clean Air Act as amended (42 U.S.C. 7411,
7601(a)) unless otherwise noted.'
  4; Appendix A is amended by adding
Method 25E:                    .     >_
Appendix A—Test Methods  •••-/.-" .
*     *    *     *    *

Method 25E—Determination of Vapor Phase
Organic
Concentration in Waste Samples
Introduction
  Performance of this method should not be
attempted by penons unfamiliar with the
operation of a flame ionization detector (FID)
nor by those who are Unfamiliar with source
 sampling because knowledge beyond the
 scopo of this presentation is required.
 1. Applicability and Principle  ,
   1.1 Applicability. This method is
 applicable for determining the vapor pressure
 of waste samples-which represent waste
 which is or will be managed in tanks. •
   1.2 Principle. The headspace vapor of thfe
 sample is analyzed for carbon content by a
 headspaco analyzer, which uses an FID.,
 2. Interferences
   2.1 The analyst shall select the operating
 parameters best suited to the requirements
 fora particular analysis. The analystsball
 produce confirming data through an adequate
 supplemental analytical technique and have
 the data available for review by the    .--
 Administrator. . •                   " •
 3. Apparatus -
    3.1  Sampling. The following equipment.
 is required:        •                •  "/.
    3.1.1  Sample Containers. Vials, glass,-
- with butyl rubber septa, Perkin-Elmer
 • Corporation Numbers  0105-O129 (glass
 vials). B001-0728 (gray butyl rubber septum,
 plug style), 0105-O131 (butyl rubber septa),
 or equivalent The seal must-be made from   ;
 butyl rubber. Silicone rubber seals are not
 acceptable.    • •   .     .   "
   3.1.2  Vial Sealer. Perkin-Elmer Number
 105-0106. or equivalent
   3.1.3 ' Gas-Tight Syringe. Perkin-Ehner . .
 Number 00230117, or equivalent.
•   3.1.4  The following equipment is-
 required for sampling: '
   ;3.1.4-1   Tap.     •    .'••"•   '     •
   3.1.4.2  Tobing,Telfim,0^5-in.ID.Note:
• Mention of irade names or specific products:
 does not constitute endorsement by the .    ,
 Environmental Protection Agency.
   •3.1.4.3  'Cooling Coil. Stainless steel (304),
•S0.25 in.-lD, equipped with a .thermocouple at
 the coil outlet-       '   •
   3.2  Analysis. The following equipment' is
 required:  .  .
   3,2.1 Balanced Pressure Headspace
 Sampler. Perkin-Elmer HS-6, HS-100, or
 equivalent, equipped With a glass bead,,
 column instead of a chromatographic
 column.            ..       .  '      '  '
    3.2.2  FID. An FID meeting the following
  specifications is required:
    3.2.2.1   Linearity. A linear response (±5
  percent) oyerthe operating range as
  demonstrated by the procedures established
 •in Section 6.1.2.         •         ,.
    3.2.2.2   Range. A full scale range of 1 to
 ' 10,000 ppm CKU. Signal attenuators shall be
  available to produce a minimum signal
  response of lOpercentoffullscale. •
 •  -3.2.3   Data Recording System. Analog
  strip chart recorder or digital integration
   system compatible with the FID for
   permanently recording the output of the ; .
   detector.             -     ' •          •
    3.2.4   Thermometer.£apable of reading
 '  temperatures in -the range of 30° to 60°C with
   an accuracy of ±Q3.°C.   -        - •   _
   4. Reagents' -•   •••••'.•;
    4.1  Analysis. The following items are
   required for analysis: ••   .••'•
    4.1.1   Hydrogen (H2). Zero grade.
    4.1^2   Carrier Gas. Zero grade nitrogen,
   containmg less than'l  ppm carbon (C) and •
   less than 1 ppm taibon dioxide.
    •4,1.3   Combustion Gas. Zero grade air or
   oxygen as required by the FID.
  4.2'  Calibration and Linearity Check.
  4.2.1  Stock Cylinder Gas Standard. 100
 percent propane. The manufacturer shall:    ^
  (a) Certify the. gas composition to'be       [
 accurate to ±3 percent or better (see Section   |
 4.2.1.1);              .                  .'
  (b) Recommend a maximum shelf life over
 which the ga&concentration does not change
 by greater than ±5 percent from the certified,  ...
 •value;and      •      • - "
   (c) Affix the date of gas cylinder
 prepaialio.n. certiSe'd propane concentration.
 and recommended maximum shelf life to,the
 cylinder before shipment to the buyer.
   4.2.1.1 Cylinder  Standards Certification.
 The manufecturer shall certify the
 concentration of the calibration gas in the
 cylinder by (a) directly analyzing the  ' ',  •
 ' cylinder andi(b) calibrating his analytical
 procedure on the day of cylinder analysis. To
 calibrate nis analytical procedure, the
 manufacturer shall use, as a minimum, a
' three-point calibration curve.
   4.2-1.2  Verification of Manufacturer's
 Calibration Standards, Before using, the
 manufacturer shall verify each calibration -
 standard by'(a) comparing it to gas mixtures
 prepared in accordance with the procedure
 described in Section 7.1 of Method 106 of
 part 61, appendix B, or by .(b) calibrating it
 against Standard Reference Materials (SRM's)
 prepared by the National Bureau of •       '   .
 . Standards, if such SRM's are available. The
  agreement between the initially determined
  concentration value and the verification
  concentration value shall be within ±5
  percent: The manufacturer must reverify all •
 : calibration standiards on a time interval
' consistent with the shelf life of the cylinder
  standards sold.      •  .  •           ,
  5. Procedure     ,
.    5.1  Sampling/  •"
    5.1.1 Install a sampling tap to obtain the
 , sample at a point which is mosf •'.,-..
  representative of the unexposed waste (where
  the waste has had minimum opportunity to  .
  volatilize to the atmosphere). Assemble the
  sampling apparatus as shown in .Figure 25E-
• 1.         '   .     '       '.-'•'
  BlUJNG'CODE 6560-60-P       -   • ;

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            sFederal  Register / Vol.  59. No. 233.7  Tuesday.  December  6.  1994 ) Rules ;and Regulations    62925
                                       WASTE Lift
                 FROM SOURCE
                                                    TAP
                                                                                         Cil/4 " TUBE FltTINCO"
                                                                              STAItLESS STSL COIL


                                                                              ICE GATH    i
                                      OPTIOHM PU*>
                                                                                           :S*MPLE CONTAINER
                        Figure  25E-1.    Schematic of  Sampling  Apparatus,
  BILUNQ CODE KW-50-C
    5.1.2 "j Begin sampling by purging ihe
  sample lines and cooling coil with at least '
  four, volumes of waste. Collect the purged  ,
  material in a separate container and dispose
  of it properly.'-,.    '         •'.'...
    5.1.3 ! After putting, stop the sample flow
  and transfer the Teflon sampling tube to a
  sample container. Sample at a flow rate such
  that the temperature of the waste is <1O°C
 . (<50°F).iFill the sample containerialfway
  (±5 percent) and cap it within 5 seconds.
  Store immediately in a cooler and cover with
    5.1.4 ..Alternative sampling techniques
  may be used upon the approval of the
 Administrator.         ;  .  /
   ,5.2; .Analysis.  • >              .
    5.2.1 i Allow one hour for the headspace
 vials to equilibrate at the temperature
 : specified in the regulation. Allow the FID to
 warm up until a stable baseline is achieved
 • on the detector.   -
    5.2.2  Check the calibration of the FID
  daily using the procedures in Section 6.1.2.
    5.2.3 '• Fpllow. the manufacturer's
 recommended procedures for the normal
 operation of the headspace sampler and FID.
    5.2.4  Use the procedures in Sections 7.4
 and 7.5 to calculate the vapor phase organic
 vapor pressure in the samples.     .
   5.2.5 :Monitor the output of the detector
 to make pertain that the results are being
 properly; recorfled.     •
 6. Operational Checks and Calibration
   Maintain a record of performance of each
' item..   i         '
-   6.1.  Use the procedures in Section 6.1.1  to
 calibrate'the headspace analyzer and FID and
 check for linearity before the system is first
 placed in operation, after any shutdown
 longer thjan 6 months, and after any
 modification of the system.
:    6.1.1  Calibration and Linearity. Use the
  procedures in Section 6.2.1 of Method 18 of
  Part 60, Appendix A, to prepare the
  standards and calibrate the flowmeters, using
  propane as the standard gas. Fill the.
  calibration standard vials halfway (±5
  percent) with deionized water. Purge and fill
 .the airspace with calibration standard.
  Prepare a minimum of three calibration
  standards in triplicate at concentrations that
  will bracket the applicable cutoff. For a cutoff
  of 5.2 kPa,  prepare nominal concentrations of
  30,000, 50,000, and 70,000 ppm as propane.
  For a.cutoff of 27.6 kPa, prepare nominal
  concentrations of 200,000,300,000, and   •
  400,000 ppm as propane.
    6.1.1.1   Use the procedures in Section
  5.2.3 to measure the FID response of each
  standard. Use a linear regression analysis to
  calculate the values for the slope (k) and the
  y-intercept (b). Use the procedures in
  Sections 7.2 and 7.3 to test the calibration  •
  and the linearity.          '
    6.1.2  Daily FTD Calibration Check. Check
 'the calibration at the beginning .and at the
  end of the daily runs by using the following  '
  procedures. Prepare two calibration
  standards at the nominal cutoff concentration
 using the procedures in Section 6.1.1.  Place
 one at the beginning and one at the end of  ,
 the daily run. Measure the FID response of
, the daily calibration standard and use the.
 values for k and b from the most recent
 calibration  to calculate the concentration of
 the daily standard. Use an equation similar
 to 25E-2 to calculate the percent difference
 between the daily standard and C*. If the
 difference is within 5 percent, then the .  •
 previous values for k and b may-be used.
 Otherwise,  use the procedures in Section,
 6,1.1 to recalibrate .theIFID.            t'  .
 7. Calculations      ''•'..,
   7,1  Nomenclature."   •"     .-••••
 A = Measurement of the .area under the •   •
     response curve, counts.    ;
 b = y-intercept of the linear regression line:
 Ca =| Measured vapor phase organic    "     '
     | concentration of sample, ppm as
    [propane.     "                .
 Cm»;= Average measured vapor phase organic
     concentration of standard, ppm as
     propane.                   .-..-•
 COT == Measured vapor phase organic
     [concentration of standard, ppm as   .
    jprppanei             '    .
 Cs =! Calculated standard-concentration, ppm
    ;|as propane.
 k = Slope of the linear regression line.
 Pbar F Atmospheric pressure at analysis ,
     Conditions, mm Hg (in. Hg).    .
 P* =• Organic vapor pressure in the sample,
     |kPa (psi).      .
 P = :L.333 X 10-7 kPa/[{mm Hg)(ppm)], (4.91
'    XlO-7psi/[(in.Hg)(ppm)})
   7.2  Linearity.  Use the following equation '
 to calculate the measured standard
 concentration for each standard vial.  ,
 CmJkA + b   Eq. 25E-1-
   7J2.1  ' Calculate the average measured
 standard concentration (CmJ for each set of
 triplicate standards and use the following    •
 equation to calculate the percent difference'
 (PD) between Cm, and Cs.


 PD.=   s~CmaxlOO       Eq. 25E-2
     '      C         '      •        '   •
 '  •:!'       s     •    '     '     • •  '    . "
   The instrument linearity is acceptable if .
 the percent difference is within five for each
 standard.                          . •   '
 .  7.3  Relative Standard Deviation (RSD).
 Use  the following.equation to calculate the  •
 RSD | for each triplicate set of standards.,

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62926   Federal Register  /Vol. .-59. No.'233 / Tuesday, December 6. 1994 /Rules and Regulations
  The calibration Is acceptable'lf the RSD is
• within five fer'each'staridard'concentration.
  7.4 Concentration of organics in the
 hoadspace. Use the following equation to
 calculate the concentration of vapor phase
 organics in each sample.
 C, = kA4-b   Eq.25E-4
  7.5 Vopor Pressure of Organics in the
 Hoadspace Sample. Use the-following
 equation to calculate the vapor pressure of
 organics in tho sample.
 P'sBPtarjG.  ,Eq.25E-5
 «    *   "  *     *     *

 PART 260—HAZARDOUS WASTE
 MANAGEMENT SYSTEM: GENERAL

   5. The authority citation for part 260
 continues to read .as follows:
  Authority: 42 U.S.C. 6905.6912{a), 6921-
 6927.6930,6934,6935,6937,6938,6939,
 and 6974.
   6. Section 260.11 is amended by
 adding the following references to the ..
 end of paragraph (a) and by revising the
 first sentence of paragraph (b) to read as
 follows:

 §260.11 References.
   (a) * * *             '              f
   API Publication 2517, "Third Edition,
 February 1989, "Evaporative Loss from
 External Floating-Roof .Tanks," available
 from the American Petroleum Institute,
 1220 L Street, Northwest, Washington,
 B.C. 20005.                  '•
   "ASTM Standard Test Method for
 Vapor Pressure—Temperature  *
 Relationship and Initial Decompositi
 Temperature of Liquids by        ;"
 Isoteniscope," ASTM Standard D 2879-
  92,-available from American Society for
 Testing and Materials (ASTM), 1916
  Race Street, Philadelphia, Pennsylvania
  19103;
  •   ***'*
    (b) The references listed in paragraph
  (a) of this section are also available for
  inspection at the Office of the Federal
  Register, 800 North Capitol Street,,NW.,
  suite 700, Washington, DC. * * * ,

  PART 262—STANDARDS APPLICABLE
  TO GENERATORS OF HAZARDOUS
  WASTE              ,    • ^
    8. The authority citation for part 262
  continues to read as follows:
    Authority: 42 U.S.C. 6906,6912(a). 6922.
  6923.6924,8925,6937 and 6938, unless
  otherwise noted.
     8a. Section 262,34 is amended by
  revising paragraphs (a)(l)(i), (a)(l)(ii)
  and (d)(2) as follows:

  §26234  Accumulation time.
     (a)***
                                       (1)***"        ..:    ;..-    '::
                                       (i) In containers and the generator
                                    . -complies with subparts I AA.'BB and CC
                                     of 40 GFRpart'265; arid/or -    ,
                                       (ii) In. tanks and the generator
                                     complies with subparts J, AA, BB and
                                     CC of 40 CFR part 265, except
                                     .§§ 265.197(c) and 265.200; and/or
                                 ion
                                        (d)***   .;••' : * -:    ,_
                                        (2) The generator complies with the  •
                                      requirements of subpart I of part 265 of
                                      this chapter, except for §§265.176 and
                                     .265.178;                        '
 PART 264—STANDARDS FOR
 OWNERS AND OPERATORS OF
 HAZARDOUS WASTE TREATMENT,
 STORAGE, AND DISPOSAL
 FACILITIES

•   9. The authority citation for part 264
 continues-to read-as follows:

   Authority: 42 U.S.C. 6905, 6912(a),  .
 6924 and 6925.   •

. Subpart B—General Facility Standards

 §264.13 [Amended]         :...
   10. In §264JI3, paragraph (bH6) is
 amended by adding'"264.1083," after
 the phrase "as specified in §§ 264.17,
 264.314,264.341, 264.1034(d).  .
 :264.lb63(d).". ' '
   11. In §264-ia, paragraph (b)(8) is
 added to read as follows:         ..

 §264.13 Genera! waste analysis.
 *•   *    *'-..*.•*•

   (b)**V-  /•;.'.     '•"".  ;_'".
   (8) For owners and operators seeking
 an exemption to the. air emission
 standards of subpart CCm accordance
 with §264.1082—            '
 •  (i) The procedures and schedules for
 waste sampling and analysis, and the
 analysis of test data to verify the
 exemption.   ....,,
   (ii) Each generator's notice and
 certification of the volatile organic
 concentration in the waste if the waste
 •is received from off site.
                                       §264.15 [Amended]              -
                                         12. In §264.15, paragraph (b)(4) is
                                       amended by removing the word "and"
                                       after the phrase "frequencies called for
                                       in §§264.174, 264.193,264.195,
                                       264.226,264.254,264.278,264.303,
                                       264.347,264.602,264.1033,264.1052,
                                       264.1053," and adding "264;1088, and,
                                       264.1091(b)," after "264.1058,".      '
 Subpart E—Manifest System,.   .
 Recordkeeping, and Reporting

   13. Section 264.73 is amended by
 revising paragraphs (b)(3) and (b)(6) to
 read as follows:

 §264.73  Operating record.
 *   ~ *    . * •   *    *
 '  (b)**?
   (3) Records and results of waste,
 .analyses and waste determinations
 performed as specified in §§ 264.13,
. 264.17, 264.314, 2641341, 264.1034,
 '264.1063, 264.1083, 268.4(a), and 268.7
 of this chapter.         ,   ,  .
 *.**•*.*         -• .
    (6) Monitoring, testing of. analytical
 data, and corrective action where
 required by subpart F of this part and
 §§ 264.19; 264.191, 264.193, 264.195,
 264.222; 264:223, 264.226, 264.252  -
 through 264.254, 264.276, 264.278,
  264.280, 264.302 through 264.304,
  264.309, 264.347, 264.602, 264.1034(c)
 through" 264.304(f). 264.1035.    •
  264.1063J[d) through 264.1063(1),
  264.1064, 264.1088, 264,1089, and
  264.1091.
  *    *  ,  *    *•»...
    ,14."Section264.77 ikamended by
  revising paragraph (c) to read as follows:

  §264.77 ; Additional reports.
  *   .*    * ',  •.*    . *,  ',""".•
    (c) As otherwise required by subparts
  F, K through Nr AA, BB, and CC of this
  part.  ; •   . - :.'"'''

  Subpart \—Use and Management'.of  '
  Containers
     15. Section 264.179 is added to read
  as follows:
  §264.179  Air Emission Standards.
     The owner or operator shall manage
  air-hazardous waste placed in a       . .
  container in accordance with the
  requirements of subpart CC of this part.

 " Subpart J—Tank Systems

     16. Section 264.200 is added to read
   as follows:        ,    .

   §264.200 Air emission standards.
     The owner-or operator shall manage
   all hazardous waste placed in. a tank in
   accordance with the requirements of
   subpart CC of this part.

   Subpart K—Surface Impoundments

     17. Section 264.232 is added to read
   as follows:

   §264.232  Air emission'standards.
     The owner or operator shall manage
 ,  all hazardous waste placed in a surface
   impoundment in accordance with the/.
   requirements of subpart CC of this part.

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                                                           *                                               .•.'.'•. --.'
           Federal Register / Vol. 59. No.  233 / Tuesday, December 6, 1994 / Rales and Regulations   62927
  Subpart X—Miscellaneous Unit
  §264.601
    18. jlne;mtroductory!text of § 264.601
  is amended by adding the words "and  .
  "subparts AA* through CC" after
  "subparts Ithrongh ;O".    '  ;  •

  Subpart AA—Air Emission Standards
  for Process Vents   -

   . .19. Section 264.1033 is, amended by
  . revising paragraph (k)(2) and adding '.
  paragraph (rhj to read as follows:

  § 264.1033 Standards: Closed-vent
  systems and control devices.    .     .
    (2) Closed-vent systems shall be
  monitored to determine compliance
'  with this section during the initial leak
  detection monitoring, which shall be .'-
  conducted by the date thatsthe facility
  becomes subject'to the"provisions of this
  section, annually,-and at other times as
.  requested by the Regional
; Administrator. For the annual leak
  detection monitoring after theinitial
  .leak detection monitoring, the owner or
  operator is not required to monitor those
  closed-vent system components which
  operate in vacuum service -orlthose ." -'..'.
; • closed-vent system-joints, seams, or
  other connections that are permanently
  or semi-perrnanently sealed (e.g., a
  Welded joint between two sections of
  'metal pipe or a bolted aind gasketed pipe
  flange).                          ;v -"-;
  -*    it*' • -./*    * •  -.-ft  ' •' ':    _'- " •  -
    (m)The owner or operator using a   ',
 . carbon adsorption system shall  '     v
  document that all carbon removed from
  a carbon-adsorption system to comply
  with §264.1033(g) and .§'264:1033 W is
;'; managed in one of the following   '
  manners:  '              •-.••-  ""•..'•'-
    (1) Regenerated or reactivated in a
  thennallreatment unit that is permitted
  under subpart X of this part;
    (2) Incinerated by a process that is  '
  permitted under subpart O of this part;
  or '"'[;    '.' ' '    .  • '  - '
    (3) Burned in a boiler or industrial
  furnace that is permitted under subpart
  Hofpart 266 of this chapter.
    20. In part 264, subpart CC is added
  to read-as followsr   -•
  Subpart CC—Air Emission Standards tor
  Tanks, Surface Impoundments, and
 • Containers   .  .
  'Sec. . '      ••:-•••••-•    "        .  . .
  264.1080 Applicability.
  264.1081  Definitions.
  264.1082'  Standards: General.
  ,264.1083 . Waste determination procedures.
  264.1084  Standards: Tanks.
  264.1085. Standards: Surface
     -impoundments.     '
  264.1086  Standards: Containers:
 - 264.1087  Standards: Closed-vent systems
 -,"   and control devices.
 . 264.1088  Inspection and monitoring      ,
     requirements.        ....
 264.1089  Recordkeeping requirements.
 264.1090  Reporting requirements.
 ' 264.1091 . Alternative control requirements
     for tanks.      —      . ..   •

 Subpart CC—Air£mission Standards
. for Tanks, Surface Impoundments, and
 Containers,

 §264,1080  'Applicability. >           V
 •  (a) The requirements df this subpart •
 -apply to owners and operators of all
 facilitiestbat treat, store, or dispose of
 hazardous waste hi tanks, surface
 impoundments^ or containers subject to
 either subparts I, J, or K of this part   '
 except as § 264.1 and paragraph (b) of
 this section provide otherwise. " "     '
   (b) The requirements of this subpart
 do not apply "to the following waste
 management units at the facility:  '..'•
   (i) A waste management unit that
 holds hazardous waste placed in the
 : unit before June 5,1995, and in which
 no hazardous waste is added to the unit
 bnbrafter June.5,1995.
   (2) A container that has a design
 capacity less than or equal to 0.1 TO?.   :
   13) A tank in which an owner or
 operator has stopped adding hazardous
 waste and the owner or operator has
 begun .implementing or completed
 closure, pursuant to'an approved closure
 plan. .> ~ • '.•    :   '     •  7 .
 , ; (4) A surface impoundment in which
 an pwner-or operator has stopped   •••. .
 adding hazardous waste (except to
 implement an approved closure plan)
 : and the owner or .operator has begun
 implementing or completed closure
 pursuant to. an approved closure plan.
   (5};A waste management unit that is
 used solely for oil-site treatment or
 storage of hazardous waste that is  :
 generated as the result of implementing
 remedial activities required under the
 corrective action authorities of RCRA
 sections 3004(u), 3004(v) or 3008(h),
 CERCLA authoritiesror similar Federal"
 or State authorities.
  • (6) A waste management unit that is
 used solely for the management of
 radioactive mixed waste in accordance
 with all applicable regulations under
 the authority of the Atomic Energy. Act
 and the Nuclear Waste Policy Act.
   (c) For the owner and operator of a
 facility subject to this subpart and who
 received a final permit under RCRA
 section 3005.prior to June 5,1995, the
 requirements of this subpart shall be
 incorporated into the permit when the
 permit is reissued in accordance .with
 the requirements of 40 CFR 124.15 or
 reviewed in accordance with the "
 requirements of 40 CFR 270.50(d). Until
 such date when the owner: and operator
 receives a final permit incorporating the
 requirements of this subpart, the owner. ~
 -and operator is subject to the.     '•'-'.
 requirements of 40 CFR part 265,
 subpartCC.

 §2164.1081  Definitions.
   As used in this subpart, all terms shall
 -have the meaning given to them in 40
 C!fR 265.1081, the Act, and parts 260
 through 266 of this-chapter.

 §2i64.1082 Standards: General.
   (a) This section applies to the
 mipagerhent of hazardous waste in
• tanks, surface impoundments, and . -
 containers subject to this subpart.     .
   Jb) The owner or operator shall
 control air emissions from each waste   •
 mimagement unit in accordance with
 standards specified in §§264.1084   r'
 through 264.1087 of this subpart, as
 applicable to the waste management'   -J
 uriiit, except as provided for in  •-•'-•    ••
 paragraph (c) of Uiis section.          .:
   (c) A waste management unit is       '
 exempted from standards-specified in   ;
 §§; 264.1084 through 264.1087 of this,
' subpart provided that all hazardous
 waste placed in the waste management
 urnt is determined by the owner or
 operator to meet either of the following
 conditions:     •  --   •-.".'.• "         •-.
 .  (1) The average VO concentration of
' the hazardous-waste at the point of  '
• waste origination is'less than 100 parts .
 per million by weight (ppmw). The
 -average VO concentration shall be
 determined by the procedures specified
 m[§ 264.1083(a) of this subpart.
   i[2) The organic content of the
 hazardous waste has been reduced by an
 orjjanic destruction or removal process
 that achieves any one of the following
 . conditions:        •     -'......
   Ifi) A process that removes or destroys
 'the organics contained in the hazardous
 waste to a level such that the average
 VO concentration of the hazardous
 waste at the point of waste treatment is
 less than the exit concentration'limit
 (Q|) established for the process. The
 average VO concentration of the
 hazardous waste at the point of waste
- treatment and the exit concentration
 lirait for the process shall be determined
 using the procedures specified in     '
 §264.1083(b) of this subpart.       ,
   l[ii) A process that removes or destroys
 the organics contained in the hazardous
 W£fste to a level such that the organic
 reduction efficiency (R) for the process
 is ipqual to or greater than 95 percent,
 and the average VO concentration of the
 hazardous waste at the point of waste
 treatment is less than 50 ppmw. .The
 organic reduction efficiency for the
 pnpcess and the average VO      •'.•'.

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 62928''. Federal ~Register-y .-Vol.- 59^J3o. ^233 -•/• Tuesday, December 6.' 1994  /  Rules and Regulations:
"concentration of the'hazardous waste at  -'
 the point of waste treatment shall be ' •   •:
, determined using the procedures .,  '' -.
 specified in. §264.1Q83(b)"of this .- *. '-V
 subpart.  '                '     -/-'.
   (iii) A process-that removes or       ,
 destroys the organics contained in the  .
 hazardous waste to a level such that the
 actual organic mass removal rate (MR)    '
 for the process is greater than the -..,-..
 required organic mass removal rate
 (RMR) established for the process. The
 required organic mass removalrate and
 the .actual organic mass removal rate for'.1
 the process shall be determined using
. the procedures specified in   ,
 § 264.1083 (b) of this subpart.      .   '-•
   ;(iv) A biological process that  destroys
 or degrades the organics contained in  ;
 the hazardous waste, such that either of
 tho following conditions is met: . •  ..
   (A) The organic reduction efficiency.".
 (R) for the process is equal to or greater
 than S5 percent, and the organic ,.   .
 biodegradation efficiency (Rbk>) for the ,
 process is equal to or greater than 95   •
 percent. The organic reduction  .
 efficiency and the organic'
 biodegradation efficiency for the process
 shall be determined in accordance with .,.,
 the .procedures specified in     ..-''•
 §264.10B3(b) of this subpart.
    (B) The total actual organic mass  •,-••-,
 biodegradation rate (MRbio) for  all.  ,  -,.;
 hazardous waste treated by the process
 is equal to or greater than the required ••
 organic mass removal rate (RMR). The •"•
. required organic mass removal rate and •
 the actual organic mass biodegradation
 rate for the process shall be determined
 using the procedures specifiedin
  §264.1083(b)'of this subpart.-  -•
    (v) A process that removes or destroys
 the organics contained in-the hazardous
 waste and meets all of-the following
  conditions:              •  '••      ' :
    (A) All of the materials entering the
 • process are hazardous wastes.
 •   (B) From the point of waste    '
  origination through the point where the _'
  hazardous waste enters the process, the
  hazardous waste is continuously
  managed in waste management units
  which use air emission controls in  ,'
  accordance with the standards specified
  in §§ 264.1084 through 264.1087 of this
 ' subpart, as applicable to the waste
  management unit.
    "(C) The average VO concentration of
  the hazardous waste at the point of  • • '
  waste treatment is less than the lowest
  average VO concentration at the point of
  waste origination determined for each of
  the individual hazardous waste streams
  entering the process or 100 ppmw,
  whichever value is lower. The average
  VO concentration of each individual   ,
  hazardous waste stream at the point of
  waste origination shall be determined
 using the procedure specified in
 §264.1083(a) of this-subpart. The
•avera'ge VO concentration of the
 hazardous waste at the, point of waste
 treatment shall be determined using the
 procedure specified in §264fl083(b) of
 this subpart.-   -    '               .   .
   (vi) A liazardous waste incinerator/for .
 which the-owner or operator has either:
•  (A) Been issued,a final permit under
-40 CFR part 270, and designs and
 operates the unit hi accordance with the
^requirements of subpart.O -of this part;  .

   (B) Has certified compliance with the
, interim status requirements of 40 CFR
 part 265/siibpart O.,
   (vii) A boiler or industrial furnace for
 which the owner or operator has either: -"
   (A) Been issue'd a final permit .under,
•40 CFR part 270, and designs and ,
 operates the unit in accordance with the
 requirements of 40 CFR part 266,   ,
- subpart H, or        ......
   (B) Has certified-compliance with the
• interim status requirements of 40 CFR  .,
• part 266, subpart H.           ,
   (d) When a process is used for the   '
 purpdse-of treating a hazardous waste to
; meet one of the.sets:bf conditions.-  >•
 specified in paragraphs (c)(2)(i) through
, (c)(2)(v) of this section, each material
'.- removed fromior .exiting the process that
 -is'nol a hazardous-waste buthas an, . • •'
' average VO .concentration equal to or   ,
'•; greater than 100 ppmw shall be  .    .
..-managed in a waste management unit.hi.
< accordance with ;the.-requirements-of.''
 paragraph (b),of this section.
   (e) The Regional Administrator may at
 •any'•time perform or request that the
 owner or operator perform a waste   ,•'''_. ,
 determination for a hazardous waste
- managed in a tank, surface    ,  '     "
• impoundment,-or container exempted •
 from using air-emission controls under
 the provisions of .this section as follows:
 .  "(1) The waste determination for
 -average VO concentration of a
 •hazardous waste at the point of waste
 • origination shall be performed using
 direct measurement-in accordance with
 the applicable requirements of
 § 264.1083(a) of this subpart. The waste
 determination for a hazardous waste at
 the point of waste treatment shall be  '
 performed in accordance with the
 -applicable requirements of § 264.1083(b)
  of this subpart.  ,   .'-••"
    (2) In a case when the owner or  .
  operator is requested to perform the
  waste determination, the Regional •
  Administrator may elect to have an
 •authorized representative observe the
 - collection of the hazardous waste
  samples used for the analysis.
    (3) In a case when the results of the
  waste determination performed or
  requested by the Regional Administrator
do not agree with ,the resultsxsf a waste
determination performed by the owner   ;
or operator using knowledge of the -
waste, then the fesults of the waste
determination performed in accordance '
  S'th the requirements of paragraph
  (1) of this section shall be used to
establish compliance with the
requirements of this subpart.
  (4) In a case when the owner or
Operator has used an averaging period
greater than 1 hour for determining the
average VO concentration of a     "
hazardous waste at the point of waste
origination, the Regional Administrator  {
may elect to establish compliance with
this subpartby performing or requesting  >
thatthe owner or operator perform a
waste determination using direct  .
measurement based on waste samples   .
• collected within a 1-hour period as
.follows:
  (i) The average VO concentration pf   '
the hazardous waste 'at the pointof ., ,.
waste origination shall be determined; • •  -;
"by direct measurement in accordance
with the requirements of § 264Vl083(a)
 of this subpart.
   (ii) Results of the waste determination
 performed or requested by the Regional'
 Administrator showing that the average  '•:_.
' VO concentration -of the hazardous .  , ,,  .
 waste at the point .of waste, origination   :
 is equal to or greater than 100 ppmw    -'...
 shall constitute noncompUance With,;,.  '
 this subpart except in a case as provided
 for in paragraph ie)(4)(iii) of this  "     ,
•-.section.
   (iii) For the case when the average VO
 concentration of the hazardous waste at
 the point of waste origination
•previously has been determined by the
 owner or operator using ah averaging.
 period greater .than l.hour to be less
 than 100 ppinw but because of normal.  •'
 operating process variations the VO
 concentration of the hazardous waste   ..
 determined by direct measurement for
 any given 1-hoirr period may be equal
 to or greater than 100 ppmw,
 information that'was used by the owner
 or operator to determine the average VO
 concentration of the hazardous waste -
 (e.g., test results, measurements,
 calculations, and other documentation)
 and recorded in the facility records in
 accordance with the requirements of .
. § 264.1083(a) and § 264.1089 of this
' subpart shall be considered by the
 Regional Administrator together with
 'the results of the waste determination
 performed or requested by the Regional
 Administrator in establishing  ,
 • compliance with this subpart.    -  ,;:  ,

 .§264.1083  Waste determination
  procedures.
    (a) Waste determination procedure for
  average volatile organic (VO)

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          Federal Register / Vol.  59, No. 233 ./  Tuesday, December 6, 1994 / Rules and Regulations  62929
 concentration of a hazardous waste at
 -the point of waste origination.;'
   (1) Ant>wnier bi;.operator .shall
- determine the average VO concentration
: at the point of waste origination for each
 hazardous waste placed in waste
 management units exempted under the „
'provisions of §264.1082(c)(l) of this
 subpart from using air emission controls
 in accordance with standards specified
 4n §26^.1084 thraugh$264.1087 of this
 subpart, as applicable to the waste
 management unit.              ..-'••
   (2) The VO concentration at the point
 of waste origination for a hazardous
 waste shall be determined in accordance
 • with the procedures specified in 40 CFR
 265.1o;84(a}(2) ihrough (a)(6) of this
 chapter.   ..."
   Tb) V^aste determination procedures
 for treated hazardous waste.
   (1) An owner or.operator shall   .
 p,erform':the'applicable waste     .  ,'
 determinations for each treated
 hazardousTwaste placed in -waste   .   .'
 .management units exempted under the
 provisions of §264.1082(cH2) of this
 subpart from using air emission controls
 in accordance with standards specified •
 in.§ 264.1084 through § 264.1087 of. this
 subpaijt, as applicable to the waste   ';'.'
 management unit ,,•- ' .  -- .
   (2),l|hewaste determination for a,
 treated hazardous waste shall be  .
 performed in accordance with the
 procedures specified in 40 CFR •.
 265.10jB4(b)(2) through (b)(10), as
 applicable to the treated hazardous-
 waste;]" '_  . '   •   •  -' '-^,.  •     '• ~ •  \
   (c) Prbcedtire to determine the
 maximum organic vapor pressure of a
 hazardous waste in a tank.     •   .
   11) An owner or operator shall
 determine the maximum organic vapor
 pressure for each hazardous waste
 placed in tanks using air emission
 controls in accordance with standards
 specified in §264.1084(c) of this       "
 subpart.
   (2) The majdmum organic vapor
 pressure of the hazardous waste shall be
 determined in accordance with the
 'procedures specified in 40 CFR
 265.10JB4M2) through (p)(4).

 §264.1084  Standards: Tanks.
   (a) This section applies to owners and
- operators of tanks subject to this subpart
 into which any hazardous wasteis;;
 placed! except for the following tanks:
   (1) A tank in which all hazardous'
 waste entering the tank meets the    •
 conditions specified in § 264:1082(c) of
 this subpart; or  •
   (2) A tank used for biological
 treatment-of hazardous waste in :       .
 accordance with die requirements of
 § 264.1082(c)(2)(iv) of this subpart.
 .  (b) The owner or operator shall place
 •the hazardous waste into one of the
 following tanks:
   (l)A'tank equipped wHh'a, cover'(e.g.,
 •-a fixed roof) that is vented through a  '
, closed-vent system to a control device
 in accordance with the requirements  , .
 specified in paragraph (d) of this
 section;          '      ,.  •        •  -
   (2) A tank equipped with, a fixed roof
 and internal floating roof in accordance
' with the requirements of § 264'.1091 of  •
 this subpart;        .    .          •
   (3) A tank equipped with an external
 floating roof in accordance with the
 requirements of §264.1091 of this
 subpart; or
   (4) A pressure tank that is designed to
 operate as a closed system such that the
 tank operates with no detectable organic
 emissions at all times that hazardous
 waste* is in the tank except as provided  .
 for in paragraph (g) of this section.
   (c) As an alternative to complying
 with paragraph (bj of this  section, an  '
 owner or operator may place hazardous.
 waste in a tank equipped with a cover
 (e.g., a fixed roof) meeting the
 requirements specified in paragraph _  •
. (dMl) of this section when the    •  '  '
 hazardous waste is determined to meet
 all of the following conditions:
   (1) The hazardous waste is neither
 mixed, stirred, agitated, nor circulated
 within the tank by the owner or operator
 using a process that results in splashing,
 frothing, or visible turbulent flow on the
.waste surface during normal process
 operations;,
   (2) The hazardous waste in the tank
 is not heated by the owner or operator
 except during conditions requiring that.
 the waste be heated to prevent the waste
 from freezing or to maintain adequate
 waste flow conditions for  continuing
 normal process operations^
  . (3)- The hazardous waste in the tank
 is not treated by the owner or operator ,
 using a waste stabilization process or a .
 process that produces an exothermic
 reaction; and    .  . •  •  >     •   ,  ' :
   (4) The maximum organic vapor    •  .
 pressure of the hazardous waste in the
 tank as determined 'using .the procedure
 specified in § 264.1083(c)  of this subpart
 is less than the following applicable
 value:
   (i).If the tank design capacity is equal
 toi or greater .than 151 m3,  then'the      ,:
 maximum organic vaporpressure shall
 be less than 5.2 kPa;   ''     ,  '    •  .  •
   (ii) If the tank design capacity is equal
 to or greater than 75 m3 but less" than
 151 in3,1 then the maximum organic
 vapor pressure shall be less than 27.6
 kPa; or                '   .    ;
   (iii)lf the tank design'capacity isjless
 than 75 m3, then the maximum organic
 vaporpressure shall be less thain 76.6
       '   •  '   •  • •  "'     •-•
              .,
   (d) To compty with paragraph (b)(l) of
 thi? section; the owner or operator shall
 design, install, operate, and maintain a
 coyer that vents the organic vapors
 emitted from hazardous waste in the
 tanlc. through a closed-vent system
 •connected to a control device.
   (1) The cover shall be -designed and
 operated to meet the following
 requirements:             ',    . •     _
   (i) The cover and all -cover openings
, (e.g., access hatches, sampling ports,  . -
 and gauge wells) .shall be designed to
 operate with no detectable organic •'•'•..
 emissions when all cover openings are '
, secured in a closed, sealed position.    .
   (ii) Each cover opening shall be   •-.-•
 seclured ui a closed, sealed position
 (e.g., covered by a gasketed lid or cap)
 at      ' . •
   (e) The owner and operator shall
 install, operate, and maintain enclosed
 pifies or other closed-systems, EPA
 considers a drain system that meets the
 requirements of 40 CFR 61.346(a)(l) or
 40 iCFR 61.346.(b)(l) through (b)(3) to be  .
 a "closed systems", to:
   (1) Transfer all hazardous waste ,to the .
 tank from another tank, surface
' impoundment, or container subject to
 this subpart except for those hazardous .
 wastes that meet the conditions
 specified in §264.1082(c) of this
 subpart; and ,    '   •* .    -    .  / .  '
  1 (2) Transfer all hazardous waste from
 the tank to another tank, surface -     :
 impoundment, or contamer subject to
• this subpart except for those hazardous .
 wastes that meet the conditions'
 specified in § 264.1082(c) of this
 sulipart.   -        ,
   ; (iEj Each cover openuig shall be
 secured in a closed, sealed' position
 (e.g., covered by a gasketed lid) at all
 times tliat hazardous waste is in the
-tank except when it is necessary to use
 thei cover opening to:      •        '.
   (1) Add, remove, inspect, or sample '.
 the! material in the tank;
   (2) Inspect, maintain, repair, or
 replace equipment located inside the < '
 tank; or     •  .
•  (3) Vent gases or vapors from the tank
 to a closed- vent system connected to a
 control device that is designed and
 opisrated in accordance with the
 requirements of § 264.1087 of this
 subpart.
   '(g) One or more safety devices which
 vent directly to the atmosphere may be

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              f •-,
  6fc930  ' federal   egister-
                                                           December 6,, 1994- / Rules :and Regulations
* used on the tank, cover, closed-vent  :,
 system, or control device provided each
 safety device meets all of the following
'^conditions:. •      ••' '   '•  r ;--•.   ; "
    (1) The safety device is not used for
 planned or routine venting of organic
 vapors from the tank or closed-vent  ,  •
 system connected to a control device;
 and
    (2) The safety device remains in a
 closed, sealed position at all times
 except when an unplanned event
 requires that the device open for the
 purpose of preventing physical damage
' .or permanent deformationof the tank,
 .cover, closed-vent system, or control
  device in accordance with good
  engineering and safety practices for   ,
 "handling flammable, combustible,
  explosive, or otherhazardous materials.
  An example of an unplanned event is a
  sudden power outage.

  §264.1085 Standards: Surface
  Impoundments.                      -
    (a) This section applies to owners-and
  operators of surface impoundments
  subject to this subpart into which any
  hazardous waste is placed except'for the
  following surface impoundments:  ' ~
    (1) A surface impoundment in which
  all hazardous waste entering the surface
  impoundment meets the conditions
  specified in § 264.1082(c) of this    <  .
 ;subparf; or
     E2).    -
   (2) A surface impoundment used for
. biological treatment of hazardous waste
 in accordance with the requirements <>£
 § 2B4,1082(c)(2Kiv) of this subpart.
   CD) The owner or operator shall place
 the hazardous waste intou surface ,
 impoundment equipped with a cover,  ,
 (e.g., an air-supported structure or.a
 rigid cover) that is vented through a
 closed-vent system to a control device
 meeting the requirements specified in
 paragraph (d) of this section.
    (c) As an alternative to complying .
 with paragraph (b) of this section, an
 owner or operator may place hazardous •
 waste in a surface impoundment    -  -
 equipped with a floating membrane  ,
 cover meeting the requirements
 specified in paragraph (e) of this section
 when the hazardous waste is
,  determined to meet all of the following
  conditions:
    (1) The hazardous waste is neither  .
 mixed, stirred, agitated, nor circulated
 within the surface impoundment by the
  owner or operator using a process that
  results in splashing, frothing, or visible
  turbulent flow on the waste surface    -
  during normal process operations;
    (2) The hazardous waste in the surface
  impoundment is not heated by the
  owner or operator; and
    (3) The hazardous waste is not treated
  by the owner or operator using a waste
 .stabilization process or a process that  ,.
- produces an-exothermic reaction.
   (d) To comply with paragraph (b)(l) of
 this section, the owner-or operator shall
 • design, install, operate, and maintain &
 cover that vents the organic vapors
 -emitted from hazardous waste in the   -
 .surface impoundment through a closed-
 ' vent system connected to a control
 device.   '      .•'  "•'  ::' ..-.'   .  .; .
   (1) The cover shall be designed and  i
 operated to meet .the following  --;  '.,:-  "•'•
 requirements:       - ;.,'  , .. •.-..•;
   (i) The cover and all cpv'er openings
 (e.g.,"access hatches, sampling ports,
 and gauge wells) shall be designed to
 operate with' no detectable organic .
' emissions when all cover openings are  •
 secured in;a closed.-sealed position.
   (iij Each' cover opening shall be
 secured in the closed, sealed position .
 ' (e.g.; covered by a gasketed lid orcap)
 at all times that hazardous waste4s in.,
 -the surface impoundment except as
 •provided for in paragraph (g) of this
  section.  "  •   . •'-'      = ',      •  .-'-".
    (iii) The closed-vent system arid
  control device shall be designed and
  operated.in/accordance with § 264.1087
 •; of this subpart."        '   :
    (e) To comply with paragraph (c) of
  this section, the'owner'or operator shall
  design, install, operate, and maintain a;
 • floating membrane cover that meets-all
  •of the requirements'specified in 40'CFR
  265;1086(e)(l) through (e)(4).    .
 •  • (fjThe owner or operator .shall install,
  operate^ and maintain enclosed pipes or
 • other closed-systems, EPA considers a
, • drain systenrthat meets the   ". '.'.'  .
  requirements of 40 GFR 61.346(a)(l) or
  40 CFR 61.346(b)(l) through (b)(3) to be
 • a"'closed system'*, to: -.,-         '..'•'
     (1) Transfer all hazardous wa'ste to the
  surface impoundment from another
  tank, surface impoundment, or       v
  container subject td this subpart'except
  for those hazardous wastes that meet the
 ' conditions specified in §264.i082(c) of
 "nthis subpart; and  _.;.
     (2) Transfer all hazardous waste from,
  the surface impoundment to another ,'
  tank, surface impoundment, or  .
  container subject to this subpart except.
  for those hazardous wastes that meet .the
   conditions specified in § 264.1082(c) of
   this subpart.'         .    •.-   •  •
     (g) Each cover opening shall be
   secured in the closed, sealed position
   (e.g., a cover by  a gasketed lid or cap)
   at all times that  hazardous waste is in
  .the surface impoundment except when
   it is necessary to use the cover opening
   to:"  .   "  '      ' ;  .   /       "!
     (1) Add, remove, inspect, or sample
   the material in the surface    -     i
   impoundment;   .
                                                                              (2) Inspect,maintain,repair,"or  •'.•""
                                                                            replace equipment located underneath
                                                                            fhe cover;  .      .            •
                                                                              (3) Remove treatment residues from
                                                                            the surface impoundment in accordance-
                                                                            with the requirements of 40 CFR 268.4;
                                                                            or
  (4) Vent gases or vapors from the
surface impoundment ..to a closed-vent
system connected to a 'control device
that is designed and operated in
accordance with the requirements of ,
§264.1087 of this subpart.
'  (h) One or more safety devices that
vent directly to the atmosphere may be -
•installed on the cover, closed-vent
system, or control device provided each
device meets all of the following •     ;
conditions: . •  '  .         -        .-
  (1) The safety device is'not used for
.planned or routing venting of organic •.  •
vapprs from the surface impoundment
or'the closed-vent'system'connected to . •
a control device; arid             -
  (2) The safety device remains in a    . ,
 closed,.sealed"positioriat all times '    , .
except when an unplanned event
 requires that the device openfor.the
.purpose of preventing physical-damage
' or permanent deformation of the cover, -..
 closed-vent system, or'corittol device in
 accordance with good engineering and •
 safety practices for'handling flammable,  •
 combustible, explosive, Or.other  -
 hazardous materials. An example of an
 unplanned-event is a sudden power
 .outage.   ''. .1  '   ' ...'

 §264."1086 Standards:Containers.   :
 ; (a) This section applies to the owners  -
  and operators of containers^ having
  design capacities greater than 0.1 m3
 subject to this subpart into which any.
 •hazardous .waste is placed except for a   •
  container in which all hazardous waste
  entering the container meets the.   ' .
  conditions specified in § 264,1082(c) of
  this subpart.          '.      ' •   '..'"•
    (b) An owner or operator shall manage
  hazardous waste in containers usjng the
  following procedures:
    (1) The owner or operator shall place
  the hazardous waste into one of the
  following containers except when a
  cpntainer is used for hazardous waste •
  treatment as required by paragraph
  (b) (2) of this section:     .
    (i) A container .that is  equipped with -
 •.a cover which-operates with no
  detectable organic emissions when .all •
  container openings (e.g., lids, bungs,
  hatches, and sampling ports) are
  secured in a closed, sealed position. The
  owner or operator shall  determine that
  a container operates with no detectable
  emissions by testing each :opening on ,
  the container for leaks in accordance
  with Method 21 in 40 CFR part 60,
 " appendix A the first time any portion of

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        T   '"     "        ~  \
          -  Federal Register / Vol. 39. No.  233 -/ Tuesday,  December 6, 1994 / Rules and  Regulations
                                                                      62931
': the hazardous waste is.placed into the
 ^container. If a leakis detected and
.  cannpti be repaired iinmediately,. the •/••
  haprdiouswasteBliall.be removed froiQ
  •'the 'container and the contaiheimot used
-, to. meefcthe requirements of this.    -
 •-paragraph until .the leak is repaired and
 • the container is'retested.  . ,
     (ii) A container haying'a .design
  capacity less than^or equal to 0.46 m3
 .."- that is equipped with a cover arid
  rcpmptipswith all applicable
  Department of Transportation
  . reflations on packaging hazardous
  waste for: transport under 49 CFR part
      -:        '•   ••  •"'    '
 ,               -     .  .•.  -.      ..    -
-;   :(A) A container that is managed in   '
 -accordance with; the requirements of 49
  CFR pairt;i78for:the purpose of  :  .   ~
  complying with. this subpart is not  . ,'-.
  subject|to any exceptions to the 49 CFR
 /part 178 regulations, except as' noted' in
  paragraph (b)(l)(ii)(B) of this section...
 •   (B) Ala'b pack that is managed in
  accordance with the requirements of 49
  CFR part,l78 for the purpose of
 • complying .with ;this subpart may    .
  comply; with , the exceptions for
 ..combin'ation packagings specified in 49.
  CER :173;i2(b).     ,  -
,./   (iii) A container that is attaehedto or
  forms a! part of any truck, trailer,-or
 .Tailcar;'[and that Ms been demonstrated
 within the preceding 12 months to be
 ;0rganicj Vapor tight when air: container,
  openings are in a closed, sealed position
 5(e.gi, the container hatches or lids are
 gasketed and latched),For the purpose
 of meeting the requirements of this
 • paragraph, a container is organic vapor
 tight if the container sustains a pressure
• .change pf not-more than 750 pascals  :
 within 5 minutes after it is pressurized  "
 ,to a minirnum of 4,500 pascals. This
 ; condition is to be demonstrated using ,
 .the pressure test specified hi Method 27
 of 40 CFR part 60, appendix A, and a
 pressure measurement device which has
--.a precision of ±2.5 mm water and which
 _ is'capable of measuring above the
 -pressure at which the container is to.be
 tested for vapor tightness..
  .  (2) An owner or operator treating
 hazardous waste in a container by either"
 -a waste .stabilization process, any
 process Jhat requires the addition of
 heat to the waste, or any process that
 produces an; exothermic reaction shall
 . meet the following requirements^
  - (i) Whenever it is necessary for the
 container to be open during the    ' ' , '
 treatment process, the container shall be
 located inside an enclosure that is    -
 vented through a closed- vent system to
 a controls-device.
    (ii) Thie enclosure shall be a structure
 that is designed ^and operated in
 accordance with .the following
 requirements: ..... .•••''
:   - (A) The enclosure shall be a structure
 .that is designed and operated with -
- sufficient airflow into the structure to
  capture the organic vapors emitted from
  the hazardous waste in the container
  and vent the vapors through the closed-
  vent system to the control device;
    (B) The enclosure may have .
.  permanent or temporary openings to
  allow worker, access; passage'of
  containers through the enclosure by
  conveyor or other mechanical means;
-entry of permanent mechanical.or
  electrical-equipment;; .or to,direct.airflow
  into the-enclosure. The pressure drop ''-'"-
 across each opening in the 'enclosure
  shall be maintained at a pressure below
  atmospheric pressure such that  ••;
 whenever an open .container is .placed  -
 inside the enclosure no organic vapors -
 released "from the container exit the
 enclosure through the opening. The
.owner or operator shall determine .that
 an enclosure achieves this condition by
 measuring the pressure drop across each
^opening in the enclosure. Jf the.pressure'
 within the enclosure is.equal to or     ,
 greater .than atmospheric pressure then
• the enclosure does not meet the     ;,
.requirements of this section;       '.'..-  •
   fiii) The closed-vent system .and
 control device shall be' designed and
 operated in accordance with the ' '
 requirements of §264.1087 of this
.subpart.   •'.-••'" ,..-•-.. ....•      v •' ...
   (3) An owner or operator transferring •
hazardous waste into'a container having
-a design capacity greaterthan 0:46 m3
shall meet the following requirements:
   (i) Hazardous waste transfer by    ,
-pumping shall be performed using a
conveyance system that uses a tube (e.g.,
pipe, hose) to add the waste into the
contamer. Diuing .transfer of the waste '•••
into the container, the cover shall
. remain in place and all container  •   .  ,
openings shall be maintained in a
closed, sealed position except for those
openings through which the tube enters
the container and as provided for in'
paragraph (c). of this section. The tube
• shall be positioned .in a manner such
that either the:  ---...,
  -;(A) Tube outlet continuously remains'
.submerged below the waste "surface at •
all times waste is flowing through the
tube; '          .,.-''•
   (B) Lower bottom edge of the tube
• outlet is located at a distance ho greater
than two inside diameters of the tube or
15.25 cm, whichever distance is greater,
from the bottom of the container at all
times waste is flowing through the tube;
or   •.        ,    '..-.'.   ' •  '  .
   (C) Tube is connected to a permanent.
port mounted on the bottom of the
container so that the lower edge of the
port opening inside the container is '
located at a distance equal to or less '
  than. 15.25 cm .from the container,':
 .bottom.     ,,       .       "."" '  •  •
    (ii) Hazardous waste transferred by a.
  means other than pumping shall be
.' peiformed such that during transfer of
  the; waste into the container", the cover.
  renjains in place .and all container
  opesnings are maintained in a closed,   •
  sealed position except for those    "
  openings through, which the hazardous
  waste is added and as provided for in
 .paragraph (d).of this section.
    (c) Each container opening shall be:  ,
 vmaJintained in a closed, sealed position '
  (e.g., covered by a gasketed-lid) at all
' times that hazardous waste is in the
 container except when it is necessary to
 use| the opening to:           .    .,-...'
    (1) Add, remove, inspect, or sample
 the [material in the container;
 ,  '(2J Inspect,maintain, repair* or
 replace equipment located inside the
 container; or'  ,    '      ,   '         ;.'
   -(3) Vent gases or vapors from a cover:
 located over otenclosing an open.  • ."
 container to a closed-vent system
 connected to a control device that is  -
 designed and operated m accordance
 witii the requirements of § 264.1087 of...
.this subpart.              - •          .
   (d) One or more safety devices'that   •'
 vent directly to the atmosphere may be
• aised oh the container, cqver^ enclosure,
 ;closjed-vent system, or. control device
 prodded each device meets all of .the  1
 following conditions:       .'  :
   (l)'The safety.device is not used for  '
 plaiined or routine venthig of organic   .
 vapors from the container, cover,
 enclosure, or closed-vent system .
 connected to a control device; and
  , (2) The safety device remains in a   '
 closed, sealed position at all times  -' -
 except when an unplanned event
 requires that the device open for the
 purpose of preventing physical damage
 or permanent deformation of the
 cohiiainer, cover, .enclosure, closed^vent,
 system, or control device in accordance
 with good engineering and safety
 practices for handling flammable,
'combustible,-explosive, or other
 hazcirdpus materials. An example of an
 unplanned event is .a sudden power
•outage.                   •     ''.'..

 §26^i;.1087  Standards: Closed-vent _    . ;
 systems and control devices.        ....'.•
   (a) This section applies to each
 closbd-vent system and control device
.installed and operated by. the owner or"
 opej'ator to control air emissions in
 accordance with standards of this   •
'subpart.                ;
   (b j The closed-vent system shall meet
the following requirements:      '
   (1) The closed-vent system shall route
the-gases, vapors, and fumes emitted
fromi the hazardous waste in the waste

-------
62932 ..F«d«al Register /Vol.
                                            23& / Tuesday. BecemW 6,  J994 t Jfofes aa«t Itegrfaitlons
 : management unit to * control device .  •
 ..that meets the requirements specifiedin
 - paragraph (cjoftbfc section. •' '  •.
   42);T^clqsed-ve** system sbaB be'
' designed end operated in accordance ''•'•.
 .with thercquiieaients specified in .
 §264.1Q33(k'>offtiispark   - -.-..
    (3) II the closed-vent system contains
 .one or more, bypass devices that could •
, bexuedtadiirertallorapartionofthe-
 gases, vapors, or fumes from entering
 the control device, the owner or -     :
 operatc^shsllmeetthefoBowing  ;
 .requirements?               • •      '
    (ft Eat each bypass device except as
 provided for in paragraph. (b)f 3}(ii) of
 iMssection^theowner or operator-shall
 cither:
    (A) Install, calibrate, maintain, ana
  operate a fkrarindicator atthe inletta
  the bypass, device that indicates at least
 onc&ove^lSmbnutes-whethergas,   • ,
  vapor, or fume flow is present in the
  bypass device,'or                  '",
    (B) Secure a.ialve installed at the
 •» inlot to the bypass device-in the dosed
  position, usingacar-eeal.or a lock-and-
  key type configuration. The-owner or-
  opciator shall visually inspect the seal.
  or closure mechanism at least once
  every month to verify that the valve is ; -
  maintained in the closed position.     •
    {iij Low leg drains, high point bleeds,
  anajyzervents, open-ended valves OF
  lines, rirtd safety devices arenot subject
  to the requirements of paragraph
  (b)(3)(i> of this section.
    (c). The control device shall meet the '•
 ' following requirements:               '
    (1) Tbscontrol device shall be one «f
  the. following devices:    .   •  •-
    (i) A control device designed and  ,
  operatedto reduce the-total organic
 ' content of the irttat vapor stream, ventesd.
  tothccantrol^tevice;byatleast95   ..-
  percent by weighty              .  -.
     (ii) Aa enclosed combustion device
  designed and operated in accordance '
  %*itb: the requirements of § 264-1033fc)
  of this part; or
     (iii) A Bare designed and operated in
  accordance with the requirements of •
  § 264.1033(d> of this part,
     (2) The, control device shall be
  'operating at all tunes when gases,  •  •
  .vapors, or fumes are vented from the
  waste management rinit through the
  closed-vent system- to- the control .
  device.            •            -
     (3) The owner or operator-using a
  carbon adsorption system to comply
  with paragraph (c)f 1) of thissection -
  shall operate-andmaintain the control
 ' device in accordance with the following
  requirements;         . ; ~
    «(i)Follo\vingdi&initialstartupofthe
  control devics,.all activated carbon in.
 . the-control derice shall be replaced  ,
  •\vith-fresh carbon on ocregular.basisin -
 accordance with-the requirements of   '
 § 264.1033{g} or§2S4.l033|h>of this
 part.  •   •        •      • •  , ..
 -; 0i) Att carbon sem0vecl from the
 contrpj device shall be .managed in
r^ceordanceTeah the requirements-of
.§264.1033fni) of this part.   .          '
   (4) An owner or operator using a
 ^control device-other thaa a Ihermal
 vapor incinerator,.Bare, boiler, process
•heater, condenser, flr carbon1 adsorption
 system? to comply wife paragraph {c)(;i}.
 of this section shall operate and  /
.maintain decontrol deviceia       r  '
 .accordance with the requirements of
• §264.10330} of this part.
   £5} The owner or operator shall-
 demonstrate that a control device  '
 achieves-the performance requirements .
 of paragraph (c}(l> of this section as
 follows:
   (i) An owner or .operator shall   .
 demonstrate using- either a- performance  ,
 test as specified £ri paragraph fc}(5)ftii}
 of this section or a design analysis**
 specified in paragraph (fc]f5}fiv} of this   •
 sectionthe perfbrraanceof each control,
 deviceexcept for the following:        ,
 •  (A)ASarer    . •    .           :-
 - ..(B) A boileror process heater with a
 design heat input capaeity.of 44
 -megawatts or greater; ••     '  ' \    '
  . (C) A'boiler or process heater into
 •which the vent«treaiH is introduced   :,
 with the primary fuel;      ^
   {B) A boiler or process heater burning,
 .'hazardous-waste-for which theowheres-;
 •operated hasbeeH issued a- final permit
•  under 4G> CFR part 27p and designs and
 •operates the unit in accordance with the
•  requirements of 40-GPR part 266,:
  sabpartHror' - -.'•'  ',:•"'
   , (E> A boiler-eBrprocess Keaterbmmmg
  hazardous waste for wnieh the owner or
  operator has certified corapKanee-with
  the interim status requirements of 4O   ,
  CFR part 266, sabpartK.
 ., .{n>An owner oroperatorshall
 , ^nonstratetbe'perfbrmance>ofeaeh
  flarefn accordance' witbfthe,
 " requirements specified in §12fi4.1033fe}.
    fiii) For a .perloBmance test conducted
  to meet the requirements &f paragrapb
- (c)t5K*> of this- seetien, the- owner or    -
  operator shall tise-fee tes* methods and'
 -procedures: specified m § 264.tO34(e)tT>
  through (c)t4). '      '   "          ^
     (iv>Fora design analysisconaueted
  to-meet the requirements of paragraph
  (cK5K*> of this section, the-design
  analysis shall meet Hie requirements   .
  specified m§2S4.1035(bK4)0n);-
     tvJThe ownerDreperator.shaiB- •-
  demonstrate that a carbon adsorption
  system achieves the-perfbrmaftee -  .
  requirements of paragraph fcKl} of this
  •section based onr' the total quantity of
  organics vented to the atmosphere frem
  .all. carbon adserptieirsystem eqeotpment.
                                                                            organfe desorp^ion or carbon
                                                                            regeneratioa, orgpsMC recovery, and
                                                                            carbon disposal. "
                                                                             |B) If the owner or operator and the
                                                                            Regional Administrator do-not agree on
                                                                            •a demonstration of control device   '.
                                                                            performance using a desigrt analysis
                                                                            then-the disagreement shall bexesolved
                                                                            using the results of a performance test
                                                                            performed by.the pwner or operator in
                                                                            accordance, with the requirements of
                                                                            paragraph (cKoKiii) of this section. The
                                                                           "Regional Administrator may choose to
                                                                            have an authorized representative
                                                                            •observe the performance test.  ,  •
                                                                            §264.1083
                                                                            requirements..  ,      ,  .
                                                                              •la) This section, applies to am owaer "
                                                                            or operator using air emission controls  .
                                                                            .in accordance with the requirements 0f
                                                                            § 264.1084 through §264.1oa7 oftMs -
                                                                            subpart. ,                  . '' '   ':, '.-.
                                                                             . fb> Each cover used in accordance    '
                                                                            with requirements of §264:1064 thawigh
                                                                            § 264.1Q8& of this subpart shall be .
                                                                            visually inspected and? monitored 'for •!
                                                                            detectable organic emissions by-ibe
                                                                            owner or operator using the pjtseedure .
                                                                            specified Jen 40 CFR 265.±089fr7fl)
                                                                            through tfM7) except as folhjwsr
                                                                              flj An- owner or operator is exentpted
                                                                            from perftKining- the cover inspection
                                                                            and monitoring requirements specified
                                                                                         -
                                                                                         .
                                                                            forthe following tank coversr
                                                                              p> A tank internal floating-roof t&at is-
                                                                            inspected and monitored in- accordance
                                                                            w*tfc the requirements of § 264,109$ o? .
                                                                            tMssabpartror
                                                                              (ii) A tank extrafnat floating roof fi&at
                                                                            is iaspected1 aract nMynitoreii to- '
                                                                            accordance with tfierequirenjeHts of
                                                                            § 2S4.J091 of tfris subpart.
                                                                              (2>lf a tanfc-isburfea partially or '
                                                                            entirely umderarouiid,.an owner e-r
                                                                            • ,«q»erat6r is required to-perfbriH fee eevea-
                                                                            inspection and monitoring' requirememts
                                                                            specified in 4® CFR 265.1089{fKl)    ~
                                                                            through. (f)|7) only for those partions o-f
                                                                            . the tank cover and those connections -to
                                                                            the tank cover or tank body- fe.gi EM
                                                                            ports, access hatches, gauge weHs,,ete.} "
                                                                            that extend to' or above the ground • • , .  :
                                                                            surface and can be opened terthe   • : •
                                                                            ' atmosphere.        . ..-..-       . "  .'
                                                                               (3> An owner or operator is exempted
                                                                             from performing the cover inspectioB
                                                                             and monitoring requirements specified.
                                                                             in 40 CFR 265.10S9efKl) through .fflf7>,
                                                                             for a contaiaer that meets aH
                                                                             requirements specified -in «th«r -, • • :
                                                                             § 264.1086(b)tU(iii) of this subpart
                                                                               ft) An- owner or operatoris exempted
                                                                            • from performing; the ceverinspeeticin;
                                                                             •and monitoringTequirements specified
                                                                             in 40. CFR 265.1089(f)(l) througfe I1****

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         ^Federal"Register / Vol.' 59, No.'233 /Tuesday, December 6, 1994  / Rules and Regulations   62933
 -for an enclosure used to. control air7; -!-*.:
-> emissions from containers in \>'  '    ••'
  accordance with Ae requirements :of
  §264,i086(b)(2) bf.this subpart
    (c) Each closed-vent system .used.in
- accordance with the requirements of
  § 264.1087 shall be inspected and   .'
  monitored by the'owner or operator in" :•
  accordance with the procedure specified
 -in § 264.1033(k).. '             :  1   .
    (dyEach control device used in
•  accqrdpncffynth the requirements of  ":.
 ^264.:ij087 of this subpart shall be   , ;
  inspected and monitored by the owner
  or operator in accordance with/the   '
  procedures specified in .§ 264.i033(f)
  and §264;1033(i),  ,_:.'.-'--           / /
    (e) The owner or operator shall •: r"  ;
  develop and implement' a-writtenjilan
-and schedule to perform all inspection
  and monitoring requirements of this: •
  sectioiL'The owner,or operator shall
 incorporate this plan and schedule into
 the facility, inspection plan required
 under§264:15.^:",">:.,    •      ';;;

 §264.1089  Recordkeeping requirements.
    (a) Each owner ;dr operator of a facility
  subject to requirements in this subpart
  shall record and maintain the following
 information as applicable:  ' ;   :; f v^-;
    (l)Dpcumentation for each coyerl.   ™
 installed on a tank in accordance with
 the requirementsof § 264.i084(b)(2) or
 §264.1<)84(b)(3) of this subpart that  '
 includes information prepared by the
 owner or operator or provided by the •.  .
 cover manufacturer or vendor  , i  :
 describing the cover, design, and  -'   ;
 certification by the owner or operator \_
 that the covermeets the applicable   - ./•
 design Specifications as listed in 40 CFR
 265.1€iai(c).     .           .       :
   (2)" Documentation for each floating -
 membrane cover installed on a surface
 impoundment in accordance with the  -
 requirements of §264:1085(e)"bf this .';.'.
 subpart that includes information
 prepared by the owner or operator or .,/
 provided by the cover manufacturer.or
: vendor describing the cover design, and
 certification by the owner or operator •
 that the cover meets'the specifications
 listed in 40 CFR 265.1086(e).           ;
   {3} Documentation for each enclosure
 used to control .air emissions from
 containers ,in accordance :with the ...
 requirements  of § 264.1086(b)(2)(i) of
 this subpart that includes information
 prepared by the owner or Operator or V
 provided by the manufacturer or vendor
 describing the enclosure design, and
 certification by the owner or operator ..
;that the' enclosure meets the  ,,
 specifications listed in      -..'..'' ...  "
j>264.1086lb)(2)(ii) of this subpart.
  v^4) Documentation for each closedr
.vent system and control device installed
 . in accordance withjthe requirements of -
 ' § 204.1087 of this subpart that includes:
    (i) Certification that is signed and. -
  dated by the owner or operator stating
  that the control device is designed to
 ;.operate at the performance level '  -
  documented by a design analysis as • •
  specified in paragraph (a)(4)(ii) of this .
  section or by performance tests as"
 specified in paragraph {a)(4Kiii}' of this
  section when :the tank; surface
 impoundment^oropntainer is 6r would
 :bei operating at capacity or :the highest ..-,'
! level reasonably, expected-to occur.   - •;
  '• (ii) If a design analysis is used,' then,'
 design documentation as specified in
 §264.1035(b)(4). The documentation
 -shall include information prepared' by
 the owner'or operator or provided by
 the control device manufacturer or  . . .
 vendor that describes the control device
 • design in accordance with  ••'..'•'-'
 § 264.1035(b)(4)(iii) and certification by,
T the owner or operator that the control' '
. equipment meets the applicable
 specifications.   .               ' ;
•--. '(iii) If performance tests are used,
 then a performance test plan as  ' :
: specified in § 264.1035(b)(3) and all test
 "results;    '-.•""'"-'!•:'"          ,
 ':.' (iv) Information as required by"
~§264.1d35(c)(l)and(c)(2).    •'.' \  ,  ; •
   (5) Records ior all Method 27 tests
 ••performed by the owner or operator for
 each container used to meet the
 Trequirements of § 264.1Q86(bHlKiii) of
 this subpart.    : .   .   •  '••;*  •:•"."
._  . '(6) Records, for all -visual.inspections
. conducted in accordance with the'    •
 requirements of § 264.1088 of. this
 subpart.  ••'•'      y ,'  .    ;.'
   ": (7) Records for all monitoring for
." detectable organic emissions conducted ..
 in accordance with the requirements of
; §264.1088 of this subpart.
  . ,(8) Records of the date of each attempt
 •to repair a leak, repair methods applied,
 and the date of successful repair.  .
  - (9) Records forall continuous  .
 monitoring conducted in-accordance ,
 with the requirements of § 264.1088 of
 thissubpart.\  .-;-.  . .
   (10) .Records of the management of
 carbon removed from a carbon
 adsorption system conducted in
 accordance with § 264.1087(c)(3)(ii) of
 this subpart.       .    ,  •
   (11) Records for all inspections of
 each cover installed on a tank in
 accordance with the requirements of
 ,§ 264.1084(b)(2) or § 264.1084(b)(3) of
 this subpart'that includes information as
 listed in 40 CFR 265.1091(c).
 .  (b) An owner or operator electing to
 use air emission controls for a tank in
-accordance with tbie conditions' . •    :
 specified in-§264.1084(c) of this subpart
 shall record the following information:
  - (1) Date and time each wast&'sampie  .
 is collected fbr direct measurement of:
 maximum organic vapor pressure in
 accordance with. § 264il083(c) of this
 subpart.     ;           .           .
   (2) Results of each determination of  ,
 .the! maximum organic vapor pressure of
 the! waste in a tank performed in    .  ..
 accordance with § 264.1083(c)lof this
 subpart. :    '_•   •  '    . •   ,   •    •  .
   .(3) Records specifying the tank ,.
; diniiensions arid'design capacity. •
   (b) An-- owner or operator electing to  "••
 use air emission controls for a tank in
 acclbrdance with the requirements of
 §2iB4,1091 of this subpart shall record
 the information required by          -"
 §2S4:i091(c) of this subpart.
   (d) An owner or operator electing-not
 to use air emission controls for a
 paijticular tank, surface impoundment,
 or (iontainer subject-to this subpart in-
 acc,ordance with the conditions'
 specified in § 264.1082(c) of this subpart
 shall record the information used by the
 owner or operator for each waste  -
 determination (e.g., test results,
 measurements, calculations, and other
 doiiumentation) in the facility operating
 log) If analysis results for waste samples
- arejused for the waste determination,
 then the owner or operator shall record
 the.date, time, and location that each" . •
 waiste sample is collected in accordance
 with apph'cable requirements of •
 § 2(54.1083  of this subpart.     v •-.:  ••"•
 - Op) An owner or operator .electing'to
 coBpply with requirements in    ••-.•'.'
 accordance with § 264.1082(c)(2)(v) or
 §2(54.1082(c)(2)(vi) of this subpart shall
 reciard the identification number for the
 incinerator, boiler, or industrial furnace
 in which the hazardous waste is treated.
  . (ii) An owner of operator designating -
 a 'cover as unsafe to inspect 'and monitor
 pursuant to 40 CFR 265.10,89(f)(5) or
 difiicult to inspect and monitor. - :•   ''
.pursuant to 40 CFR 265.1089(f](6) shall '
 record in a log that is kept in the facility
 operating record.the following
 infcirmation:            '      -.-  . .-
-   ('L) A list of identification numbers for
 tanks with covers that are designated as: •
 uns afe to inspect and monitor in
 acdibrdahce with the requirements of 40
 CFR 265.l089(f)(5), an explanation for
 eada cover stating why the cover is   .  :
 unsafe to inspect and monitor, and the
 plaij and schedule for inspecting and
.monitoring each cover.
   (St) A list of identification numbers for
 tanks with covers that are designated as
 difficult to inspect and monitor in
 accordance with the requirements of 40
 CFR 265.1089(f)(6), an explanation for
each cover stating why the cover, is
 difficult to inspect and monitor, and the
 plan and schedule for inspecting and
momtoring each cover.  -   •-, • • ' -.. • '-••"•

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12934
           Etdoal Begetter /. -V«^. 59; No. ,-233' f Suestiaff, Becenaber 6. 399% •/ Rates ami
 (a)thxougb tf> ^tins-section excepfras?
.           is SBCtion. shall be maintained
 in the operating record for a minimum .
 o f S y BKS^ Att Mcards'Kajuited by
 section
  opcxatingiecowl until thfl air cnrissiQii
 •control .equipment is replaced 'or
    (h) Thff ateasr or operator of a facility?
 , that is snhjBCt to tiiis snbpart andto the
 control drwiee standards irt 4OGFRpart
 60,mbp«rrtVVor46eFRpartei,.
 •SubpartVin^ elect to deittonstrate  •
 compliance witk ti»a applicable-sections:
 of thissubpartby/ documentation either
 parsuant toibiswibpait, or pursuant to
 the provisions of 4O< CFR part 60,
 subpart Wor 40 CFR part Bl.sabpart
 V, tatrHrextentthatthedocirmentatioa
 required by 4O CFR parts. 6O or 63
 duplicates, the ctoairaentaUon; required
 by this section.
                                      § 264.108'4feltll thrauglt t«^4l of this
                                      subparL The owoei- or operator shall
                                      submit a wriitert report within 15-
                                      calendar days o£ the; time that the, owner
                                      or operator, becomes aware- of the-     •
                                      occtuzenee. The written report shall
                                      contairhtheBPA Jdentifieatioa aumber,,
                                      faeilitf nfflne and grtHrBg^ at deseriptioa
                                      of thenoncoajpliaiiceevemtaiwithe  .  .
                                      cause,, the, dates of the noncompliaiice, •,
                                      .and the actitms taken; tb>GQ£rect the
                                                                ...
                                      reoccurrence of the noncomrJaancs. The
                                      report shall be signed and dated by an -
                                     -authorized representative of the awniar-
                                      or "operator,        "    '     . '     "
                                        (el Each, owner or operator using, a
                                      control device in, agtvn-riangR wiih, the
  §264.1090
    (a} Each. owner or operator managing ,
  hazardous waste in ft tank* surface
  impoundment, or container exempted
  from, using air emission controls under
  the provisiojis o£ §284.1082(4 shaU ,
  report to theJRegional Administrator  ,
  each occurrence, whan, hazardous waste
  is placed irk the waste, management unit
  In noncompliance with, the conditions'
  speciEed in § 264J.Qa2(e)(l> or. (c)(2j of
  this subpart, as applicable. Examples of
  such occurrences include placing in the
  waste management unit a hazardous .
  waste having an average VO
  concentration equal to: or greatsac than. .
  lOQppraw at the point of waste   . _ ..
  origmation; or placing in the waste
  management unit a treated, hazardous
  waste- which fails to. meet the applicable
  conditions specified in
  § 264 J.032£c)(2)(il through (cK2l(vl of .
  this subpart. The owner or operator
  shall submit a written report within 15
  calendar days of the tune that the owner
  or operator becomes; aware of the
  occurrence. The written report shall
  contain the: EPA identification number,.
  fatality name and address, a description
  of the noncompliance event and the
  cause, the dales of the noncompliancey
  and the actions taken to correct the
  noncompliancftandprevent
  reoccurrence of the-noncompliance-The
  report shall he signed and dated by an
  authorized representative of the, owner
  or operator.
     (bJEach owneroroperatorusingair
  emission controls on a tank in
  accordance with the requirements-
  §264J084(c} of this subpart shall report
  to the Regional Adininistratorfiaebi
  occurrence when hazardous waste is
specified .ia 4O C3FR2iSS.ia9flL|a)ii)iD>
through (a)Cia(fc4.      -     .-
  (2J The; wmBfW operator eladBag: to
comply with §26«Qa4(b)t3)d this
subpait shall design^ install,, opetatev,
and maintain: an external floating; ittef
that meets, fee iequineraerits:srieeifi«jd its
40, CFR 265.1Qai|a;i42l(il through
                                '
                    .        „
  (b) Tne owner or operator shali
inspect ami manitortha control ,
equipment in accordance with, tlue:
 : Cl), Ear a tank equipped with a fixed
•roof-and internal fkiating. roofin •   •  •
accordance with the requirements/ of
paragraph (aj(ljof this section, the
owner or operator
 requirements.of §264.108.7 of this,
 subpart shall submit, a semiannual
 written report.to the RegwaBal
.Administrator exeepiedas.nrqv,ided,for- •
 in paragraph Id), of this section. The
 report shall describe each occurrence.
 during the previous, fi-month, period
 when a control device is. operated •
 continuQusly/ for'2.4 hours, or longer .in
 noncompliance with1 the applicable.
 operating, values defined in. •   •
 § 264.1035(cJC4l or when aflarefe
-operated with, visibleemissions a&"
 .,                  '   ~.

                                                                            PART 265—INTERIM STATUS
                                                                            STANDARDS FOR OWNERS AND
                                                                            OPERATORS OF HAZARDOUS WASTE
                                                                            TREATMENT, STORAGE, AND
                                                                            DISPOSAL FACILITIES

                                                                              211  The authority citation for part 265
                                                                            continues: to read as follows:.
                                                                              Authority: 42 O.S.C. &905, 6912fak6924,  .
                                                                            6923,: and 6935.               -

                                                                            Subpart A—General

                                                                              .22; Section 2€5.lCb} is amended by
                                                                            revising the first sentence to read as
                                                                            •followsr '
                                                                             § 265.1  Putpose^seope,,
                                                                            1   (b) Except as provided iai
                                                                             § 265.1080(b), the standards of this, part,
                                                                             and of 4Q CER 2E4.55a and 40^ CFR,
                                                                             264^53^ apipiy ta< ovteersrand opBTators
                                                                            '«£.facflitigs that troat, sroie'or dJsposie of

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                                             233 J .Tuesday.  December 6, 1994,7, Rules /and Regulations  62935
  hazardous waste who liave fully
  complied With the requirements for
  interim status under section 3005(e) of
,  RCRA and §270.10 of this chaptei'.until
  either a,.permit is issued under se'ction -
  3005 of RCRA.or until applicable part
 -265 closure and post-closure
 responsibilities are fulfilled, and to   '
  those^wners and operators of facilities .
  in existence on November 19, 1980 who
 iave failed to provide timely     ,
 .-notification/as required by section -. " .-
 ,^010{a) jof RCRA and/or failed to file
 Part A of the permit application as
 required by 40 CFR 270.1O {e} and  --"-
 <&••*'*;•*;..•:,_ ;  = -'. .  ... ,. •: ...  ,   .
• * '   * 'F •••*'..  •*  .. ..•*   ,"' •• ,' '.

 Subpart B— General Facility Standards

 .§265.13 i {Amended]          '
    23. Jnl-S265.13, paragraph fb){6) is   t
 amended by adding "205.1084," after
 the phrase "as specified in §§ 2651200,-. "
 265.2251 265.252,,265.273. 265.314,
 .265.34lt 265.375, 265..4b2,^65.1034(d),
 265.1Q63(d),".      ,       :    .•-••.
   24. In §265.13, paragraph (bH8) is  '
 added, to read as follows:       • ••'

 §265.13 i General waste analysis.
     •     ''               '   ''
 •                .     ..       ....
   (8) For owners and operators seeking
 an exemption to the air.emission
 standards of Subpart GC«f this part in
 accordance "with §265.1083 —     ^
   (i) The procedures and schedules for
 waste sampling and analysis, and the
' 'analysis iof lest data to verify the
 exemption.            i
   (ii) Each generator's notice, and
. certification of the volatile organic -.• ..
 concentration in the waste if the waste
 is received from offsite.
 *'•.*, !  '.* • . -•*  .-*•••  • '• .  • . ' ' ;

 §265.15 ![Amended]
   25. In §265.15, paragraph (b)(4) is
 amended by removing the word "and"
 after the phrase "frequencies called for
 in §§265.174, 265.193, 265.195,
 265,226, 1265.260,265.278, 265.304,
 265.347, !265.377; 265.403, 265.1033,
 265.1052, 265.1053," and adding
 "265.1089, and 265,1091(b)," after
 "265.16518,".              /

 Subpart E— Manifest System,
 Recordtopeping, and Reporting

  26. Section 265.73 is amended by
 revising paragraphs (b)(3) and (b)(6) to
 read as follows:     *

 §265.73 Operating record.
            .  ...   ..       .     .  ,.
  (3) Records and results of waste
analysis, waste determinations, and trial
  tests performed as specified in
  §§ 265.13,265.200,265.225,265.252,
  265.273, 265.314, 265.341* 265.37S,
  265.402,' 265.1034, 265.1063, 265.1084,
  268.4(a), and 268.7 of this chapter.
  *'•*'•*    •* :   *   - .  '
    (6} Monitoring, testing or analytical
  data when required by §§ 265.19,.
  .265.90, 265.94, 265.191,265.193,
  265:195,265.222,265.223^265.226,
  265.255; 265.259, 265.260,265.276,
  265.278, 265.280{d)fl), 265.302.through
  265.304, 265.347, 265.377,265»1034(c)
  through 265.1034(f), 265,1035, .
  265.1063(d) through 265;1063(i),
  265.1064, 265.1089, 265.1090, and
  265.1091.
  *,.,'*•    *'."*.  '*      •
    27. Section 265.77 is amended by
  revising paragraph (d) to read as
'  follows: .';.'••'

  §265.77  Additional reports.     ^  !••'....
.  * •  '  *    * /   *    *
   (d) As otherwise required by Subparts
  AA, BB, and CC of this part,

  Subpart I—Use and Management of
  Containers              '

   28. Section 265.178 is added to read
  as follows:

  § 265.178 Air emission standards.
   The owner or operator shall manage
  all hazardous waste placed in a
  container in accordance with the
  requirements of subpart CC of this part.

  Subpart jU-Tank Systems
   29. Section 265.202 is added to read
 .as follows:'     ..••.•

 §265.202 Air emission standards.
 • • The owner or operator shall manage
 all hazardous waste placed hi a tank in  '
 accordance with the requirements of
 subparts AA.BB, and CC of this part.

 Subpart K—Surface Impoundments
  30. Section 265.231 is added to read
.as follows:          .      .

 §265.231  Air emission standards.
  The owner or operator shall manage
 all hazardous waste placed in a surface
 impoundment in accordance with the
 requirements of snbpart CC of this part.

 Subpart AA—Air Emission Standards
for Process Vents      .

  31. Section 265.1033 is amended by
revising paragraph (j)(2) and adding
paragraph (1) to read as follows:

§265.1033 Standards: Closed-vent
systems and control devices.
     (?) Closed-vent systems shall be
   moinitored to determine compliance
   with this section during the initial leak
   detection monitoring, which shall be
   conducted by the date that the facility-
   bee bmes subject to the provisions of this
   seclionr annually, and at other times as
   requested by the Regional
   Administrator. For the annual leak
   detection monitoring after the initial
   leal: detection monitoring, the owner or
   operator is not required to monitor those
   closed-vent system components-which
   continuously operate in vacuum service
   or those closed-vent system joints,
   seains, or other connections that are   .....
   permanently or semipermanently
   sealed (e.g.t a welded joint between two
   sections of metal pipe*or a.bolted and   <
   gastieted pipe flange^.
   *   i  */,•*;   •',   '"«•"•'.  ••-'.'.
 ., dilThe owner or operator using a
   carh'on adsorption system shall   -.
   dociiment that all carbon removed jfrom
  the control device is managed in one of
  the Ifollowing manners:      '
    (1) Regenerated or reactivated in a   •
  thermal treatment unit that is permitted.
  under subpart X of 40 CFR part 264 or
  subpart P of this part;         -•"•"'•'.  "
   •-, (2:) Incinerated by a process that is
  permitted under subpart O of 40 CFR
  part i264 or subpart Oof this part; or
    (3) Burned in a boiler or industrial
  furnace that is permitted under subpart
  H of ;part 266 of this chapter.
    32|. In 40 CFR part 265, subpart CC is
 "added to read as follows:
  Subpiart CC—Air Emission Standards for
  Tanks, Surface Impoundments, and
  Containers
  Sec. ['/. •-.-.•  :  '   ''••.'•'•-.."
  265.l|080  Applicability.
  265.i;081  Definitions.
'  265.i;o82  Schedule for implementation of
     a'ir emission standards.
 265.1083  Standards: General.
 265.1084  Waste determination procedures
 265.1085  Standards: Tanks.
 265.1086 Standards: Surface      -
     impoundments.
 265.1087  Standards: Containers.    .  '
 265.1058  Standards: Closed-vent systems
     and control devices.  •
 265.1089  .Inspection and monitoring
,     njquirements.-
 265.1090  Recbrdkeeping requirements..
 '265.1091  Alternative tank emission-control  •
     requirements.  '  -

 Subpart CC—Air Emission Standards
 for Tanks, Surface Impoundments, and
 Containers

 §265.|I080 Applicability.
 -  (a) The requirements of this subpart
 appl}^ to owners and operators of all
 facili ties that treat, store, or dispose of
 hazardous waste in tanks, surface
 impoundments, or containers subject to

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  62936  -Federal Register.,/ Vol. 59. No, 233 /Tuesday;:December 6, 1994  /Rules and Regulations
  either subparts I, J, or K of this part
  except as § 265.1 and paragraph.(b) of,
  this section provide otherwise..
    (b) Tie requirements.of-.this subpart
 . do not apply to the following waste  , -
  management units at the facility: -   -
    (1) A waste management unit that
  holds hazardous waste placed in the
  unit before June 5,1995,'and in which.
  no hazardous waste is added to the unit
  onor-afterjune5,1995.   -     . ...
    (2) A container that has a design   .
  •capacity less than or equal to O.l.m3. ;
    (3)'A tank in which an owner or  •;   .
  operator has stopped adding hazardous
  waste and the owner or operator has ,
  begun implementing or completed
  closure pursuant to an approved closure
  plan.
    (4) A surface'impoundment in which
  an owner or operator has stopped
  adding hazardous waste (except to
  implement an approved closure plan)
  and the owner or operator'has begun
  implementing or completed closure
  pursuant to an approved closure plan.
    (5) A waste management unit that is
  use'd solely for on-site treatment or.
  .storage of hazardous waste that is '
  generated as the result of implementing
  remedial activities required under the
  RCRA corrective action authorities of
  3004(u), 3004(v) or 3008(h), CERCLA
  authorities, or similar Federal or State.
,  authorities.
    ^ (6) A waste management unit that is
  used solely for the management of   "
  radioactive mixed waste in accordance
  with all applicable regulations under
  the authority of the Atomic Energy Act '
  and the Nuclear Waste Policy Act.
    (c) For the owner and operator of a   .
  facility subject to this subpart who has
  received a final permit under RCRA
  section 3Q05 prior to June 5,1995,  the
  following requirements apply:
    (1J The requirements of 40 CFR part
  264, subpart CC shall be incorporated
  into the permit when the permit is
  reissued in accordance with the
  requirements of 40 CFR 124.15 or
  reviewed in accordance with the
  requirements of 40 CFR 270.50(d). ,
    (2) Until the date when the permit is
  reissued in accordance with the
  requirements of 40 CFR 124.15 or  ,
  reviewed.in accordance with the
  • requirements of 40 CFR 270.50(d), the
   owner and operator is subject to the
  requirements of this subpart. '   •  ,

  §265.1081  Definitions."        '    .
    As used in this subpart, all terms not
   defined herein shall have the meaning
   given to them in the Act and parts 260
   through 266 of this chapter..
     Average volatile organic,
   concentration or  overage VO
   concentration means the mass-weighted
 average volatile organic concentration of
 a hazardous waste as determined in
 accordance with the requirements of
 § 265:1084 of this subpart.
 •  Cover means a device or system  .,  .
 which is placed on or over a hazardous
 .waste such that the entire hazardous  -
 waste surface area is enclosed and     ' .
.sealed to reduce air emissions to the
 atmosphere. A cover may have openings .-'
 such as access hatches,.:sarnpling ports,
 and gaujge wells that are necessary for
 operation, inspection, maintenance, or-
 'repair of the unit on which the'cover is
 installed provided that each opening is .
 closed and sealed when not in use.:  •
 Examples of covers include a fixed roof
 installed on a tank, a floating membrane
 cover installed on a surface
' impoundment, a lid installed on a
 drum, and an enclosure in which an
 open container is placed during waste
 treatment.            •
   .External floating roof means a
 pontoon or double-deck type floating
 roof that rests on the surface of a
 hazardous waste being managed in a
 tank that has no fixed roof.
   Fixed roof means a rigid cover that is
 installed in a stationary position so that-
 ' it does not move with fluctuations in •
 rthe level of the hazardous waste placed
'.in a tank.  -  '        •-     •  ••.•'-.
   Floating membrane[cover means a
 cover'consisting of a synthetic .flexible -
 membrane material that rests upon and
 is supported by the hazardous waste   .
• being managed in a surface
 impoundment.   ,'         ;   •    •
   Floating roof mesas a pontoon-type or
 double-deck type cover that rests upon
 •and is supported by the hazardous
 'waste being managed in a tank, and is •
 equipped with a closure seal or seals to
 close the space between the cover edge,
 and the tank wall.   .               '
   Internal floating roof mesas a floating
 roof that rests or floats on the surface
 (but not necessarily in complete contact.
 with it) of a hazardous waste being
 managed in a tank that has a fixed roof.
   •Liquid-mounted-seal means a foam or
 liquid-filled primary seal mounted in.
 •contact with the hazardous waste
 between the tank wall and the floating
 roof continuously around the,
 circumference of the tank. ..     •
    Max/mum organic vapor pressure
 means the equilibrium partial pressure
 exerted by the hazardous waste
  contained in a tank determined at the
 temperature equal to either: (1) the local
  maximum monthly average temperature
  as reported by the National Weather
  Service when the hazardous waste is
  stored dr treated at ambient
  temperature;-or (2) the highest calendar-
  month average temperature of the •
  hazardous waste when the hazardous.
 waste is stored at temperatures above  .
 the ambient temperature or when the
 hazardous waste is stored,or,treated at
 temperatures below the ambient
 temperature'.
   No detectable organic emissions
 means no escape of organics from a
 device or system to the atmosphere as
 determined by an; instrument reading
 less than 500 parts per million by
 volume (ppmv) above .the background
 level at each joint; fitting, and seal when
 measured in accordance with the   "
. requirements of Method 21 in 40 CFR   -
 part 60, appendix A, and by no visible
 openings or defects in the device or
 system such as rips, tears, or gaps.
   Point of waste origination means as
 follows:                  ."''"./
   (1) When the facility owner or
 operator is the generator of the
 •.•hazardous waste, the point of waste
 origination means the point where a
 solid waste produced by a system,
 process, or waste management unit is
 determined to be a hazardous waste a§
 defined in 40 CFR part 261.   ;.      /  •
   [Note: In this case, this term is being used
 in a manner similar to the use of the term
 ' "point ofgeneratioh" in air standards
 •established for waste management operations
 under authority, of the Clean Air Act in 40
 CFR parts 60,61, and 63).
   • (2) When .the facility owner and
 . operator are not the generator of the • 1
 hazardous waste, point of-waste •
 origination means the point where the
 owner or operator accepts delivery .or  -
 takes possession of-the hazardous waste."
   Point,of waste treatment means the
 point where a hazardous waste exits a
 waste/management unit used to destroy,
 degrade, or remove organics in the
 hazardous waste.                  •
   Vapor-mounted seal means a foam-
 filled primary seal mounted
 continuously around the circumference
 of the tank so that there is an annular
 vapor space underneath the seal. The
 annular vapor space is bounded by the
 bottom of the primary seal, the tank
 wall, the hazardous waste surface, and  ,
 the floating roof.                 .
   Volatile organic concentration OT VO
 concentration means the fraction by
 weight of organic compounds in a
 hazardous  waste expressed in terms of
 parts per million (ppmw) as determined
 by direct measurement using Method
  25D or by knowledge of the waste in
 accordance with the requirements of •
  § 265.1084 of this subpart.
    Waste determination means
  performing all applicable procedures.in
  accordance with the requirements of
  § 265.1084 of this subpart to  determine
  whether a hazardous waste meets
 . standards-specified in this subpart.  -

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                   . -,v.   •    .,-,   /.r    * ...••..     . .    .     ....•  . -. .  -   .•.•*•. .-         ..     ..    •
                   Register 7 ;VoL 59,'No/ 233 / Tuesday,  December 6, 1994 / Rules and Regulations   152937
 45xamples of fl.waste determination  ...
 • iinclude perfbrining.ithe:procedures in
  accordance with'the requirements of ^'
 • § 265.1084'Ofthis subpart to determine
 - «thei •average VO concentration of .a
 -hazardous waste at the point of waste
  origination; the average VO
 ^concentration of a hazardous waste at •
  the point of waste treatment and
  comparing the results;to the exit     •-'  •.
  concentration limit specified for.-the
  process used to treat the hazardous
  waste: determining the organic
  xeducticjn efficiency arid the organic    '*
  biodegradation efficiency for a    .
  biological process used to treat a
  hazardous waste and comparing the
  results to the applicable standards; or
  the maximum volatile, organic vapor
 ' pressure for a hazardous waste in a tank
  and comparing the results to the
 ..applicable standards.      .   "   ,
    Waste stabilization process means any
  physical or chemical process used to
 , eitherreduce the mobility of hazardous
  constituents in^a hazardous waste or •-••-,.
  eliminate free liquids as determined by
  Test Mettiod 9095 {Paint Filter Liquids
  •Test) in "Test Methods for Evaluating
  Solid Waste, Physical/Chemical
  Method^'EPA Publication No. SW- i
  846, Third Edition, September 1986, as
  amended by Update I, November 15,
  1992 (incorporated by reference—refer.
  to§\260illpfthis;chapter). Awaste    •
 ' 'stabilization process includes mixing •
  the hazardous waste with binders or
 . "other materials, and curing the resulting
  hazardous waste and binder mixture.
  Other synonymous terms used to refer
  to this process are "waste fixation" or
; "wastekuidifieation."  ,  .  •  ••''.-,...,:

  § 265.1082  Schedule for Implementation of
  air emission standards.
    (a) Oijvners or operators of facilities
  existing on June 5,1995, and subject to
  Bubparts 1, J, and K of this part shall
  meet the following requirements:  r
    (1) Install and begin operation of all
  control Equipment required by this .
  subpartjby June ,5,1995, except as .
  provided for in paragraph (a)(2) of this
 .section,            .•''"•
 . . ,.(2) When control equipment required
  by. this subpart cannot be installed and ,
  in operation by June 5,1995, the owner
 ••-or operator shall:     .     .        .  .
    (i) Install and begin operation  of the
  control {equipment as soon as possible
  but no later than December 8,1997.  .
   " (ii) Prepare an implementation
  schedule that includes the following,
 •. informationt-specific calendar dates for
  award of contracts or issuance of
 •' .purchase orders for the control .
  equipment, initiation of on-site
  installation of the control equipment,
  completion of the control equipment
 installation, and performance of any .' •
 testing to demonstrate that the installed "-
 equipment meets the .applicable •
 standards of this subpart.  T       '.,..
   (in) For facilities subject to the
 recordkeeping requirements of §265.73
 of this part, the owner or operator shall
, enter the implementation schedule
 specified in paragraph {a){2)(n).of this   .
 section in the operating record no later
 than June 5,1995.      -
  -(iv) For facilitiesiipt subject to      >
 § 265.73 of this part, the owner  or.
 operator shall enter the implementation
 schedule specified in paragraph (a)(2)(ii)
 of this section in a permanent, readily
 available file located at the facility no  .
 later than June 5,1995.         '
   (b) Owners or operators of facilities in
 existence on the effective date of
 statutory or regulatory amendments
 under the Act that render the facility
 subject to subparts I, J, or K of this part
-shall meet the following requirements:
   (1) Install and begui operation of all
 control equipment required by this  ;
 •subpart by the effective date of  the
 amendment except as provided for in
 paragraph 0>)(2) of this section'.
   {2) When control equipment required
 by this subpart cannot be installed and
 begin .operation.by the effective date of
 the amendment, the owner or operator
 shall:,.       '       :      ••....
   (i) Install and operate the control
 equipment as soon as possible tut no
 later than 30 rnpnths after the effective.
 date of the amendment.  "     .
   (ii) For facilities subject to the
 recordkeeping requirements of § 265.73,
 enter and maintain the implementation
 schedule specified in paragraph (a)(2)(ii)
 of this'sectibn in the operating  record no
 later than the effettive date of the
 amendment,  or .        '
   (iii) For facilities not subject  to -
 § 265.73, the  owner or operator shall
 enter and maintain.'the implementation
 schedule specified in paragraph (a)(2)(ii)
 ;.of this section in-a permanent, readily
 available file located at the facility site
 no later than the effective date  of the
 amendment.      .                   .
  . '(c) The Regional Administrator may "
 electto extend the implementation date
 for control equipment at a facility, on a
 case by case basis, to a date later than
 December 8,1997, when special
 circumstances that are beyond  the
 facility owner's or operator's control  ;
 delay installation or operation  of control
 equipment and the owner or operator
 has made all reasonable and prudent
 attempts to comply with the
, requirements of this subpart.

 §265.1083  Standards: Generaf.
    (a) This-section applies to the     ,'
. management of hazardous waste in
 tanks, surface impoundments; and;/,'.  '•
 containers subject to this subpart.
   (b]i The owner or operator shall
 control air emissions from each waste   •
 management unit in accordance,with
 standards specified in §265.1085
 through § 265.1088 of this subpart, as
• applicable to the waste management
 linitii except as provided for in
 paragraph (c) of this section.
   (c]l A waste management unit is
• exempted from standards specified in'
- §2615.1085 through §265.1088 of this
 subpart provided that all hazardous  ..
 wasl:e placed in the waste management
 unitiis determined by the owneror    ".
 ppeiator to meet either of the following
 conditions:
-•  (1 j The average VO concentration of -
'the Jiazardous waste at the point of
 .waste origination is less than 100 parts
, per million by weight (ppmw). The
 average. VO concentration shall be
 determined by the procedures specified
 in § ^65.1084(a) of this subpart.   .
   (2) The organic content of the
 hazzirdous waste has been reduced fty an
 organic destruction or removal process
 that |achieves any one 'df the following
 conditions:;'      ......  >  '      -
   (i) A process that removes or destroys
 the organics contained in the hazardous
 waste to a level such that the average
 VO concentration of the hazardous'.',
• waste at the point of waste treatment is
' less than the exit concentration limit
 (QJ established for the process. The
 average VO concentration of the
 haziirdous waste at the point of waste-
 treatment and the exit concentration
: limit for .the process-shall be determined
 using the procedures specified in    .  '
 § 265.l084(b) of this subpart.
   • (ii) A process that removes or destroys
 the organics contained in the hazardous
 waste to a level such that the organic
 reduction efficiency (R) for the process
 is equal to or greater than 95 percent,
 and the average VO concentration of the
 , hazardous waste at the point of waste
 treatment is less than 50 ppmw. The  ''•
 orgjmic reduction efficiency for the
 process and the average VO
 concentration of the. hazardous waste at.
 the point of waste treatment shall be
, determined using the procedures
 specified in §265.1084(b) of this
 subpart.
    (iii) A process^thatr removes or
 destroys the organics contained in the ,'
 .hazardous waste to a level such that the
 actual organic mass removal rate (MR)
 for :the process is greater than the
 reqiliired organic mass removal rate
 (RN1R) established for the process. The
 required organic mass removal rate and
• the factual organic mass removal rate for
 the [process shall be determined using

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*»62938 -Federal-Register 7 'Vol. 59, No:4233 / Tuesday. December  6; .1994 / -Rules and Regulations
 the procedures specified in.
 §265.1084(b) of this subpart.'
   (iv) A biological process that destroys
• or degrades'the organics contained in •.
 the hazardous, waste, such that either of
 the following conditions is met:
   (A) The organic reduction efficiency;
 (R) for the process is equal to or greater  ;
 than 95 percent, and the organic
 blodegradation efficiency (Rbii) for the
 process is equal to or greater than 95
 percent. The organicTeduction
 efficiency and the organic
 blodegradation efficiency for the process.
' shall be determined in accordance with
 the procedures specified in  •  •
 § 265.1084(b) of this subpart.
   (B) The total actual'organic mass-
 biodegradation rate (MRbio) for all
 hazardous waste treated by the process-
 is equal to or greater than the required
 organic mass removal rate (RMR). The,
 required organic mass removal rate and
 the actual organic mass biodegradation
 rate for the process shall be determined
 using the procedures specified in
 §265.1084(b) of this subpart.
   (v) A process that removes or destroys
 the organics contained in, the hazardous
 waste and meets all of the following
 conditions:
   (A) All of thejnaterials enteringlhe ,
 process are hazardous wastes..  •   •
   (B) From the point of waste
 origination through Ihe point where the
 hazardous  waste enters the process, the
 hazardous  waste is continuously
, managed in. waste management units
 which use  air emission controls in'  "
 accordance with the standards specified
 in § 265.1085 through § 265.1088 of this
 subpart, as applicable to .the waste
 management unit.
   (C) The average VO concentration of
 the hazardous waste- at the point of
 waste treatment is less than the lowest
 average VO concentration at the point of
 waste origination determined for each of
 the individual hazardous waste streams
 entering the process or 100 ppmw,
 whichever value is lower. The average
 VO concentration of each individual
 hazardous waste stream at the point of
 waste origination shall be determined
 using the procedure specified in
 § 265.1084(a) of this subpart. The
 average VO concentration of the
 hazardous waste at the point of waste
 treatment shall be determined using the
 procedure specified in § 265.1084Cb) of •
 this subpart.
    (vi) A hazardous waste incinerator for
 which the owner or operator has either:
   , (A) Been issued a final permit under
 40 CFR part 270, and designs and
  operates the unit in accordance with the
 requirements of 40 CFR part 264,,
  subpart O; or
,  (B) Has certified compliance-with the
 interim status requirements of subpart O
 of this part.               ,  .  .
  ,(vii) A boiler or industrial furnace for ".
 which the owner or operator has either:
   (A) Been issued a final permit under
 40 CFR,part 270, and designs and
 operates the unit in accordance-with the
 requirements of 40 CFR part 266,
• subpart H, or  '  '
   (B) Has certified compliance with the
 •interim status requirements of 40 CFR .
 part 266, subpart H.; 'i .-  -      -
   (d) When a processes used, for the
 purpose of treating a hazardous waste to
 meet one Of the sets of.conditions
 specified in paragraphs (cK2)(i) through
 (c)(2)(y) of this section, each material
 removed from or exiting the process that
 is not a.hazardous waste but has an
 average VO concentration equal to or
 greater than 100 ppmw shall be
 managed in a waste management unit in
 accordance with the requirements of
 paragraph" (b) of this section. - „
 '  (e) The Regional Administrator may at
 any time perform or request that the
-. owner,or operator perform a waste
 determination for a hazardous waste
 managed in a tank, surface
 impoundment, or.contairier exempted
 from using air emission controls under
 the provisions of this section  as follows:
   [II The waste determination for - -    ,
 average VO concentration of a
 hazardous waste at the.point  of waste
 origination shall be performed using
 direct measurement in accordance with
 the applicable requirements of   •
 § 265.1084(a) of this subpart.  The/waste
 • determination for a hazardous waste at .
 the point of waste treatment shall be
 performed in accordance with the
 applicable:requirements of § 265.1084(b)
 of this subpart.                .  '.
    (2) In a case when the owner or
 operator is requested to,perform the
 waste determination, the Regional
 Administrator may elect to have an  "•
 authorized representative observe the
 collection of the hazardous waste
 •samples used for the analysis.
    (3) hi a case when the results of the
 waste determination performed or
 requested by the Regional'Administrator
 do not agree with the results  of a waste
 determination performed by the owner
 or operator using knowledge of-the
 waste, then the results of the waste
 * determination performed in accordance
 with the requirements of paragraph
 (e)(l) of this sectipn shall be  used to
 establish compliance with the  .
 requirements of this subpart.
    (4) In a case.when the owner or
 operator has used an averaging period
 greater than 1 hour for determining the
 average VOconcentration.of a       •
 hazardous waste at the point.of waste  .
origination; the Regional Administrator  .
may elect to establish compliance with
this "subpart by performing or requesting
that the owner or operator perform a
waste determination using direct  .
measurement-based on waste samples
collected within a 1-hour period.as
follows:       •                   .
 • (i) The average VO .concentration of
the hazardous Waste at the point of
waste origination:shall be determined
by direct measurement in accordance
•with the .requirements of § 265.1084(a)
of this subpart.. '•;•..     •  _     .'••_'.
  (ii) Results of the waste determination
performed or requested by the Regional
Administrator showing that the average
VO concentration of the .hazardous
waste at the point of waste origination
.is equal to or greater than 100 ppmw
shall constitute noncompliance with
this subpart except in a case as provided •
fof in paragraph (e)'(4)(iii) of this
section.'       •
.  (iii) For the case when the average VO  ,
concentration of the hazardous waste at
the point of waste origination  ..',.
previously has been determined by the
owner or operator using an averaging
period greater than 1 hour to be less
than 1,00 ppmw but because of normal
 operating process variations;the VO
 concentration of the hazardous waste
 determined by direct measurement for
•- any given' 1-hour period may be equal
 to or greater than 100 ppmw,
 information that was used by the.owner
 or operator to determine the average VO
'concentration of the hazardous waste
 (e.g., test results, measurements,
 calculations, and other documentation)
•and recorded in the facility records in
. accordance with the requirements of
 § 265.1084(a) and § 265.1090 of this
 subpart shall be considered by the
 Regional Administrator together with ,
'the results of the waste determination
 performed or requested by'the Regional
 Administrator in establishing
 compliance with this subpart.

 §265.1084 Waste determination
• procedures.
  Ka) Waste determination procedure for
 volatile organic (VO) concentration of a
 hazardous waste at the point of waste
 origination.  •
    (1) An owner or operator shall  ...
 determine the average VO concentration
 at the point of waste origination for each
 hazardous waste placed in a waste
 management unit exempted under'the
 provisions of § 265.1083(c)(l) of this
 subpart from using air emission controls
 in accordance with standards specified
 in § 265.1085 through § 265.1088 of this
 subpart, as applicable to the waste
 management unit.                / , .

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           '••;'QjFederal Register / Wol. 59, No. 233 / Tuesday, December 6,  1994  /Rules and  Regulations   62939
                 e:facility pwner.pr; !   -
     operator Is the generator of the ;  ->
    .hazardous waste, the owner of'operator
     shall determine the average VO .
     concentration of the hazardous waste
     using either direct measurement as  •
     specified in paragraph (a)(5) of this   ,
    ' section of knowledge of the waste as
     specified in paragraph (a)(6) of-this     :
     section Jor each hazardous waste
     generated-as follows:          .     .-.
  ,     (i) Vyhen the .hazardous waste js  .
  .   generated as part of a continuous
     process,' the owner or operator shall:
     •'  (A) Perform .an initial waste
     determination of :the average VO
     concentrationof the waste stream before
     the first time any- portion x>f the material
     in the iwaste^stream is'pkced in a waste
  '   management unit subject to this subpart,
  .  .and thereafter update the information
    - used for 1fce waste determination  at least
     once e(very 12 months following .the date
     of.the initial waste determination; and
       (B) Perform a new waste
     determination whenever .changes to.the
  :   source generating the waste stream are
    • reasonably likely to cause the average  -
  ,  ~VO concentration of the hazardous
     waste jtb increase to a level that is equal
'.'   -to or greater than the applicable .VO
     concentration limits specified in
     §265.1083 of this subpart.
   .    (ii) When the hazardous waste is.'
  •-   generated as part of a batch process that
     is performed repeatedly but not    •'•.
   • necessarily continuously, the owner or
     operator shall:         .      -
       (A) 'Perform an initial waste _   -  . '
     determination of the average VO
     concentration for one or more  .
     representative waste batches generated
     by .the process before the first time any
   •J portion of the material in the batches is
     placed in a waste management unit ,   "...
     subject to this subpart, and thereafter  -
 . -..update the information used for the
     waste determination at least once every
     12 months following the date-of the
     initial; waste determination; and
       '(B) .Perform a new waste   '
     determination whenever changes to the
     process generating the waste batches are
     reasonably likely to cause the average
    "~VO concentration of the hazardous  .
     waste to increase to a level that is equal
     to or greater than the applicable VO
     concentration limits specified in
     § 265.1083 of this subpart.
  • . •   (3) When  the facility owner and
     operator is not the generator of the.
     hazardous waste, the owner or operator
     shall determine the average VO
     concentration of the hazardous waste
     using either direct measurement as
     specified in paragraph (a)(5) of this
  .   section or .knowledge .of the waste as
 '_,•  specified in paragraph (a)(6) of this
: section for. each hazardous waste
 entering the facility as follows:
.   (i) When the hazardous waste enters
 the facility as a continuous flow of
 material through a pipeline or other
 means (e.g., wastewater stream), the
 owner or operator shall:            .   .
   (A) Perform-an initial waste
 determination of the waste stream
 before Hie first time any portion of the
 materialin the waste stream is placed in
 a-waste management unit subject to this
 subpart, and thereafter update the
 information used for the waste     •'..>'".
 'determination at least once every 12
 months following the date of the initial
 waste determination; and "   .  .
   (B) Perform a new waste   ' '  ..
 determination whenever changes to the
 source generating the waste stream are
 reasonably likely to .cause the average
 VO concentration of the hazardous
 waste to increase to/a level that is equal
 to or greater than the applicable VO
 concentration limits specified in
 § 265.1083 of this subpart.
, '  (ii) When the hazardous waste enters
 the facility in a container, the owner or
 operator shall perform a waste
•determination for the material held in
 each container.  ........
   .(4) For the case when the average VO
 concentration of the hazardous waste is
 determined by.the owner or operator to
 be less than 100 ppmw, but because of
 normal operating variations in the
 source or process generating the      •
 hazardous-waste the VO concentration  .
 of the hazardous waste may be equal to
 or greater than 100 ppmw at any given  r
 time during the averaging/period, the
 owner or operator, shall prepare and
,enter in the facility operating record  '
 information that specifies the following:.
   (i) The maximum'and minimum VO
 concentration values for the hazardous
 waste that occur during that averaging
 period used for the  waste determination;
   (ii) The operating conditions or
 circumstances under which the VO
 concentration of the hazardous waste ..
 will be e'qual to or greater than 100 "
. ppmw, and;                 ____^
   (iii) The information and calculations
 used by the owner or operator to  /
 determine the average VO concentration
 of the hazardous waste.
   : (5) Procedure for using direct
 measurement to.determine average VO
 concentration of a hazardous waste at
 the,point of waste origination.
   (i) The owner or operator shall
 identify and record the point of waste
 origination for the hazardous waste. All
 waste samples used to-determine the
 average VO concentration of the
 hazardous waste shall be collected at
 this point.      ,            '• •
 ., ;|ii) The owner or operator shall.
 designate and record the averaging 'I
 period to be used for determining the.
 average VO concentration for the    -.-  -
 hazardous waste. The averaging period   -
 shall not exceed 1 year. An initial waste
 determination shall be performed for •
 eaiih averaging period.
   (iii) The owner or operator shall
 identify each .discrete quantity of the
 msiterial composing the hazardous waste
 -represented by the averaging period
 designated in paragraph (a)(5}(ii) of this
 section, An example of a discrete
 quantity of material composing a
 hazardous waste generated as part of a
 continuous process is the quantity of
 material/generated during a process
 operating mode defined by a specific set '
 of operating conditions which are
 normal.for the process. An example of
 a'discrete quantity of material
 -composing a 'hazardous waste:generated  •
 as part of a batch process that is    "•,.'.
 performed repeatedly but not      '•:-.,
 necessarily continuously is the total
 quantity of material composing a single
 batch generated by the process. An
 example of a discrete quantity of-    .''.--
 material composing a hazardous waste.
 delivered to a. facility in a container is '
 the total quantity of material held in the
 coiotainer,   '  .               - •.  • .
   l[iv),The following procedure shall be
 used measure, the VO concentration for
 eaiph discrete quantity of material
 identified in paragraph (a)(5)(iii) of this .
 seiition:   ...    .'.-.'
   (A) A sufficient number of samples,
 but no less than four samples, shall be
 collected to represent the organic
 composition'for the entire discrete
 quantity of hazardous waste being
 tesited. All of -the samples shall be'
 collected within a 1-hour period."
 Sufficient information shall be prepared
 aild recorded to document the waste
 quantity represented by the samples    >
 and, as applicable, the operating .
 conditions for the source or process
 generating the hazardous waste     . ,
 rejbresented by the samples.
   |[B) Each sample shall be collected in
 accordance with the requirements
 . specified in "Test Methods for   •
 Evaluating Solid Waste, Physical/
 Chemical Methods," EPA Publication ,   •
 No. SW-846, Third Edition, September
 19^6, as amended by Update I,
 November 15,1992 (incorporated by
 reference—rrefer to §260.11 of this
' chapter),          ^_       '     •  .  .
  • j[C) Each collectecfsaniple shall be     :
 prepared and analyzed in accordance
 with the requirements of Method 25D in
 40| CFR part 60, appendix A.
   |JD) The measured VO concentration'
 foi? the discrete quantity of hazardous
 waste shall be determined by using the'

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.62340   Federal Register «/, V/cl'.SQi, NOK 233 k
                                                                Becemkeor 64, .iS9« ,L- Rules- ami
    results foe aH g
    of this section, and. the following
*'  equation; .     " •••_., .•"   .
   -where:,.
        discrete: quantity ofihazardous
        waste; ppnrwr.        '
    ie!ndiyMuaisanqile"i" of t&e
        Jjazarchaus •waste.' coHected1 in=  •
        baz&rdotis; waste eoHected (at least
        4j within- a- 1-hour period. ,
    Q=VO- cmrcentratiDTB measnTBii by
        Mothadt25B fijTsancple "i"rppmw;
      (v) The average VO concentration- of
    the bazar.dduswastejsnall fee-
    detennined usuig^thefdJIbwing' •
    procedure:
      (A^Whert the facility owner or-
    operatOF is-1fhe--generator of the
    hazardous waste, a suSraenE rrumber of
    VO coneentratfoameasiErenienls-fbrlhe-
    haaardoas waste shaff ba'perfoSmerf in-
    nccoydariCT wi8h the reqtmements-.of
    paragraph: {aKSjprJ of this'secttoa to
    represent the complete range of ,
    htszardoay waste- organic compositions
    and! quantities-trrat occurdurrng1^'
    entire ffreraging;peribtf due'ter nxnmal_.
    varratfbns fir the- op«raUug'con(fiUoiis
    for each process operating:made
    IdentifiearbrttarsoTtrce or process 1
    generating the hazardous waste. •
      (B) \VhewtfiolaaKtyowiieror-  -
    operaroris-not'the-generatorofthe
    hazardous1 waste, a sufficient number of
    ,VO concontratiorr HreasuTements for the
    hazardons-wastcshall Be'pHrformed in
    occcmlanco- wrflr the- requirements of
    paragraph frKSKivJ' of this section to   .
    representtire corapleterangaaf "   ,
    hazardoBS- waste organfccorapositfons
    and quantitJcs- that cfccurin the
    hazardous wasteasreceivedat the,
    facility during- tire entire averaging.
    poriod.
      (C) The- averager VO concentration, of
    the hazardous-waste at the. point of
    waste orfginatiomshall'be calculated by
    mcasttrenrents' pet&rmed! fin.* accordance
    with paragraph- C»)t5](ivJ of this section
    and tferfbllbwing equation,-
    whore:                     .   '
    Cflvc= Average. VO concentratioa of ther
        hazardous! wast&ii£the.poin£ of
              originnflou, ppmw..
                                       •}=IndiviiuaLdis            ;   •   -
                                          (6) Rcxjcedtrrefijrusing'knowJ'edge of
                                       the- waste- to determine the average VO
                                       concentration: of- a-hazardous waste'at
                                       the point ofHvastff origination.
                                         _(i) The owner  OF operator-shall
                                       icfentrfy and record the point of waste- v
                                       origination far the'hazardbus waste-. All1
                                                  '
                                        average VOre'oneeiitratien ofthe-
                                        hazardous waste shall be based' on? th«-
                                       .haizardous waste •CB
                                        point.
                                        periodt'toibe rased' finretetHasiHiing'the-'
                                        average MGt doncenGafiss-feEfihe.' :  • • -
                                        hazardnus- wasteu*Eh«!.aTP6ragraig period''
                                        shall rust exzieedi "k yean: Aa iiifli^ waste
                                        detenninatiani sballiba perforated! fcnr,'
                                        «acbaveragiiigpeiiodl
                                        VO coneentration-.for theiiazardcuis
                                        ivastei. Information! may 'be used; that.is;
                                        eperateir arhy the generHtmrafitiie
   (iv) Iff test? diiitaiartiEDaEtiian;\fO)
 concentration ijieasurfii
 specifiedin paragraph: (a)(St)iiw);o£tliia;
 section.; are,! usedt as; &e basis; fisr "• •
 knowledgaro£ the' wastes them t&e;owueir
 or operator shall' documfint the test
 method',, sampling protocolvarrdi the;
 means by whieb>.s0mpiiDg- variability
 and analytical variability axe accounted:
 for in the determinatioiii of the average
 VO concentratroir.. For example;, an   v
• own'er or opeiatormay use! mdlbE&iQal'
' organie-eoiiatituent conGentratibB. test
 data that age* validated: icu ancEusdaaeg
.with Methodi 30.li ini appendix A- off4ffl)
 CFRpari 63; as tfes basis; f
 of:t4ie;waste.  • .
   (3bi): Waste; detennina
 for treated hazardous waste;
   (jl)? Ans HwmejrcHf &peratsoFshaffli
 hazaidous
 management isamt exempted, under tsbue
 in § 265i
' subpart,, as; applieable to tha waste
 management unit
   (2) The; cnaaifflcoE'DpfiEator.1 sfeall'.
 perform a waste dBtezmdinatdon. fbri each.
                                                                              waste- as followsr
                                                                                (i) WhenitherfiazaEdjaas-wastteis,
 •owner or.operator shall:
   (A) PerfoaaitasnLHiitiaLwaatB;
 .determimatidn; Bar the; treated1 waste
 .stream befinrE the fissft, time: auypoctioni
 o ft tke: material- in. the waste streami is.  •
 . placed in a -was te management unit
 siab JHCt:ttr this sub part!,- and thereafter
 .update: the iafbranatian used, for' the,
 waste- dBtermmati am at iBasH once every
 1 2 months, following: the date afthe:
 mjtial waste determmatiinn; and:
                                        information
                                        basis; for knowledge; e£tb» waste-
                                       'includes organic materiai balances fer
                                        the source or process generating the;
                                        waste;, VQ eoncentration- measuiemente
                                        for'the same- ^pe; of waste- peifsnned; nm
                                        aceoidanc&wuii the: procedure; sperffiedi
                                        in paragraph (a)(5l(iviof;this;secl!iisnr, .'.
                                        previous individual organic constituent
                                        testdata.fer the wasteihatare-stiilli
                                        appliGafifeto-thacunant wastes
                                        management practices; documentations
                                        that the waste- is generated' by a; pzocess
                                        for whiAaaerganks-eonfedruiBg;
                                        materials, are used;, pee vious teat data' for
                                        other locationsuaanaging.thftsamertjipe
                                        of waste; or other kaowledgfcbasedf on-
                                        manifests-,
                                        .certification notices.
 determinati'on wlienever
 hazardous waste: streams iedto.the:
 p roeess;are; reasonably likely ta cause  •
 tsbBicharaGtenistixis dftiiehazardtous!
. waste at the: point o£ waste: treatment to' .
 change: to> levels that faii to: achieve the
 applicable conditions specified in.
   (ii) When: the hazardous waste, is
 treatedby a batch; process; that is
 necessarily continuously r the1 otwiei or
 operator shalk                 ;
   (A) Perfomrt an* ktitiall waste;   \   ,
 determination fior the; treated! hazardous
 waste in one or more> representative1
 hatches treated by the- process; and!
 theraHfter update the: information' uaedi
 for the? waste determteationi at least once1

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          \ Federal Register /  Vol. 59, No. 233 / Tuesday, December  6, 1994 / Rules  and Regulations  62941
 -ieveryji2:;montns following the date of..:
  the initial waste determination; and
  _. (B) Perfpnn-aiievirwaste...    :   •  .
  determination whenever changes to the
  hazardous waste treated by the process
 .arereasonablylikely'io cause the   .
  characteristics of the .hazardous waste at •
 "the pqintjolwaste^treatment to change  '
  to levels that'fail to achieve the     ,
  applicable conditions specified in
 ;§265.1083(c)(2) bfthissubpart.
  • "(3) The! owner or. operator .shall   ;
 .designate and lecord, the specific -    '-•' '
  provision in-§265.1083l[cK2) of tiiis
  subpart for which the waste .      ••'.-•
  determination is being performed.-The
 • waste determination for the treated  '
  hazaf dou|s waste shall be performed -
  using thel applicable,procedures
  specified in paragraphs (b)(4) through
 ;{b)(10) ofjthis section. .
  " (4) Procedure to determine the
  average yo concentration of a ;    ".  -•••-
  hazardous waste at the point of waste
 .treatment.,     .     ;/'-    .     .
 -"-JL) The [owner or. operator shall .  ~-
" identify find jepord the point of waste
 • treatment for therhazardous waste. All  ;
  waste samples used to determine the .
  average yp concentration of the ..   .:; .;
  hazardous waste'shallbe collected:at •". :.'-.
  this point.   ' • .-   •  .   • ..". •'••  ..
    (ii) Th6 owner of operator shall    :.
  designate and record the. averaging
  period to be used for determining the
  average yo concentration for the
  hazardous waste.-The averaging period
  shall not exceed 1 year. An initial waste-
  determination shall be performed,for
  each averaging period.   , ,v       •.-.-/
    (iii) The owner or operator shall
 Identify each discrete quantity of the
  material composing the hazardous waste
 -represented by the averaging period
  designated in paragraph (b)(4)(ii) of this
  section, i     .      :-•'  ••' . •   ,
  . ;(iy) The following procedure shall be
  used measure the VO concentration for
 . each discrete quantity of material
  identified in paragraph (b)(4)(iii) of this
  section:'[...-.   •                 -
    (A) A sufficient number of samples,  •
  but no less than four samples, shall be
  collected'to represent the 'organic
  composition for the entire discrete
  quantity Of hazardous waste being
  tested. All of the samples shall be
  eollectediwithin a 1-hour period.
 , Sufficient information shall be prepared
 ' and recorded to document the waste
  quantity represented by the samples
  and, as applicable, the operating      -
  conditions for the 'process treating the.
  hazardous waste represented by the  .
  samples.I -.';     '  ',
    (B) Each sample shall be collected in
  accordance with the requirements    .
  specified in "Test Methods for
 1 Evaluating Solid Waste, Physical/
Chemical Methods,"-EPA Publication
No: SW-846, Third Edition, September
1986, as amended by Update I, "• '.".
November 15, 1992 (incorporated by
reference— r-refer to § 260.11 of this
chapter).' .    .''-'--'
  ,(C) Each collected sample shall be
•prepared and analyzed in accordance
with the requirements of Method 25D in
40 CFR part 60, appendix A.
  (D) The measured VO concentration
for the-discrete quantity :of hazardous
waste shall be determined by using the
results for all 'samples : analyzed in . '  . . : ' •
accordance with paragraph (bj(4)(iv)(C)
Of this section and the following
equation: .
where: :     .      '              .•--...
C = Measured VO concentration of the "
    discrete quantity of hazardous
    waste, ppmw.
i-= Individual sample "i" o'f the
    hazardous waste collected in
    accordance with the requirements
    of SW-846.
n = Total number of samples of
    hazardous waste collected (at least
    4) within- a 1-hour period.         ;
Ci •— VO concentration measured by
    Method 25D for sample "i", ppmw.
  (V) The average VO concentration of
the hazardous waste at the point of
waste treatment shall be determined
using the following procedure:  ,
  (A) When^the facility owner ;or   :    ;
operator is the generator of the   '••.-'
hazardous waste, a sufficient number of
VO concentration measurements for the
hazardous waste shall be performed La  -
accordance with the requirements of
paragraph (b)(4)(iv) of this section to
represent the complete range of
hazardous waste -organic compositions
and quantities .treated by the process
during the entire averaging period.
  (B) The average VO concentration of
'the hazardous waste at the point of
waste treatment shall be calculated by
using the results for all VO .-.'..•
measurements performed in accordance
with paragraph (b)(4)(iv) of this section
and the following equation: .  .
              vT  j=r
 where:   •  •   .      ;  ' -i '.-•-'
 Cave =^Average VO concentration of the '
  >   hazardous waste at the point of
     waste treatment, ppmw.      \
 } = Individual discrete quantity "j" of
     the hazardous waste for which a VO
     concentration measurement is    -
     determined in accordance with the
    :'rBquirements .of paragraph- (b)(4)(iv) ;
    ipf this section.  .-,..:'      '
 m = Total number of VO concentration
     measurements determined in
     accordance with the requirements
     of paragraph (b)(4)(iv) of this
     sbction for the -averaging period.
 QJ-= Mass of the discrete quantity of the
    . hazardous waste represented by Cj,
 •'   -%    '•'-''•;.  '•:'-"   .'"-,  ,  .-•'
 Qr ^Total-mass of. the hazardous waste
  .; for the ayeraguig period, kg.    •
 .Cj = Measured VO concentration of
     discrete quantity "j" lor the
     hazardous waste determined in
 --"  . accordance ,with the requirements
     c|f paragraph- (b)(4)(iv) of this
     sbction, ppmw.   :        '   ..
   (5) Procedure to determuie the exit  '
 concentration umit (Q) fora treated
 hazatjdous waste.       ~  -     '-.'..
   (i) The ppmt of waste origination for
 each hazardous waste treated by the  •
 procejss at the same time shall be   , "
 identified.              • .    '   ,
   (ii) [If a single" hazardous waste stream "~
 is identified in paragraph (b)(5)(i) of this :
 secticm, then the exit concentration
 Umit (Q) shall be 100 ppmw.
   (iii) If more than one hazardous waste
 stream is identified in paragraph  .
 (b)(5)|(i) of this section, then the VO
 concentration of each hazardous waste  .-
 stream at the pointof waste origination
 shall be determined in accordance with
 the requirements of paragraph (a) of this
 section. The exit concentration limit (Q>
• .shall be calculated by using the results
. deter bained for each individual  '
 hazai'dbus waste stream and the   '•   '•-
 folloiying equation:      :
                         xlOOppiriw)
 ... -i  -;  -.    ..*='•    y='       :.
 where:                         •
 C, = ISxit concentration limit for treated
    • Hazardous waste, ppmw..
 x = Individual hazardous waste stream
     ']x" that has a VO eonceritratiqn ~
     less than 100 ppmw at the point of
     waste origination as determined.in
     aiccordance with the requirements
     of§265J.084(a).
 y = Individual hazardous waste stream
     'jy" that has a VO concentration
     equal to or greater than 100 ppmw
     at the pouit of waste origination as
     determined in accordance with the
     requirements of § 265.1084(a).
 m = Total number of "x" hazardous
     ivaste streams treated by process.
 n = Total number of "y" hazardous
          streams treated by-process. '

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G2S42.  Fedtxali Register
                                    59v Nbw 233V // TTtesday-,, Bfecember 6,. i<99$ /; Rules andl RfeguI&tieHSj \
 Q^=:AinuBtllinH£;s--gpanti£y.'of hazardous
     waste stream 'Wh^yR "  .  "
 Qy,s Annual mass'quoirtatjpoC hazardous;
     jvastaistream"^1-', kg/yr.,   •  •
 Cf. & Average- VO: concentration' of
     hazardous wasttsstream. "x?' atthe
     point aEwasto- origination, as.
     dstarmincd in: accordance with- tire
     requirements: of § 265 .1084(a)v
     ppmw.                       ,
   (SPPreeedure'to determine'tne-orgairier
 joduclionieffficiencyr-(Kpfbra'trBffted!
 hazardous waste-.  •
   (i) The'organic reduction, efficiency
 for a treatrnent-ptoeas&snaiFBe
- determined-Based! on? results fora.
• minimum- of Jlnee-consecutive-runs.
 The sampling time foreaefr,run- shall be
 1 hour:.                     ~
 stream entering the procesaanAeadx
 hazardtmss'ujaste steam exiting' the.1
                            '
 calculation. a£ tha ocgarmrrediiction
 'efficiency for the process shall.be
 ideniifreclL
   (lit) Foncacn Rmv- the fpHo wing:
 Infonnntron! shall* V» ArtafrmmmfrffTr'
 each, hazardcms waste stream Sientified
 in paragraph 03K6}(ii> of thiftSGctiDn,
 ushig thcfbllnvvingprQccdnrea:
   (ATThesmaas quantity of each-
 hazardoussvrastastiaaraientermgthc-
 pcocBssCQti).£ind..the,maBS-quantityQf,
 each, hazardous waste? stream." exiting: the"
 process. CQJ shall he detenninedL
   (B) The VO)«mcerttrationro£each:
 hazardous waste stream, entering the
 process (QJ: during- thgtrmishalV be
 mcasuredin accordnncfi with. the. '  .
 requirements of paragraphs (a)j(5}{iv)(uS)f
 through (&)(5)(ivj(D) of this section. The
 VO concentration oi eackhazardcnus
 \vaste-streanr ejdting, the-proeess OCa)
 during the run shall be determined in
 accordance with the requirements of
 paragraph (b)(4ltiv) of this section.
 Samples shall Be collected as follows:
   (1) For a continuous process, the
 samples of the hazardous waste entering"
 and samples of the hazardous waste
 exiting the process shalTBe collected
 concurrently.
   (2]f Fora batch process, the samples of
 the hazardous- waste-entering the  r
 process shafl'be collected at the time
 that the hazardous waste is placed in
 the process. The samples of the
 hazardous waste exMng-the process
 shall be collected- as soon as practicable
 after thettme when-thieproces&stops
 operation1 or the final treatrnentGycle  -
 ends.
   (iv) TJhe-wastB-volatite'GrgaHiernass
 flow entering't&e process- (Ei>). and the-
 was to-volatile orgamC mass- flow exiting
 the process- OSJ'SnaTl be-calGulatedib-y'
                                       this--S8ctioni and! the* foltowihg' cquatibnat:
                                                    1:0°
                                       where:    ,  '        :        •
                                       Ea.— W&Ste yolatilfe.prgarac mass flow
                                                                      '
                                                 ,,.     ..
                                         -— Waste.vblatilB orgairitemassflow
                                                                       ''
                                                          .r            .
                                       m = Totalirrumberof runs(atlbast 3)'
                                       ,j = Individual^ruri "j"   • -
                                       Qhj = Mass quantity of hazardous waste
                                           entering process, during run "j", kg/
                                           hr,       •-•.-..",."••
                                       Qaj = Average mass quantity of waste-
                                           exiting process .during run "j"', kg/'
                                           •hr:
                                       C^j = Measured; VOiconeentcatiimi of '
                                           hazardous waste exitiirg^proDBSs
                                           during ram " y ss-: determined: im
                                           accordance- witir the;requiirements  •
                                           oft §;265;i084fb)(a)(iv)v ppmw; v
                                       Cb> = Measured VO concentration; of
                                           hazardbusiwaste entering' process -
                                           daring run-. "jfKas: determined' inv
                                           •accordance3 w^tia- tJiei requirements
                                           of § 2S5ll®ff« (a)?53^wiK!&J! toough-
                                      '    .falt3)(iv)(p1i ppmw..  ...
                                         (V<) TBe'organife reductabn-effiefeEicyof
                                       the process's&alibe1 cal'cul'ated'by usng'
                                                         .
                                       with paragraph' (b){SJC&$ of this seetSor*
                                       and the foitewihg equattoH'.    .
                                                            -x.160.%
                                       where:              -
                                       R = Organie-reduetitorr. effieiient3y -f ^
                                           percent. '         ,
                                       Eb = Waste-volati-le-erganic-mass flow-
                                           enteriBg'process'as-determiriedlin
                                           accordance- with1 tibte'requirements
                                           section-, fcg/'hr.
                                       Ea = Waste volatile- organiis mass flow
                                           exiting process as- determined in-
                                           aecordianee" with the- requirements
                                           of paragraph. (bj(6')(iv)- of tMs
                                           section, kg/hr:            •     '•  •
                                         (7) Procedure to determine the organic
                                       bibdegradations efficiency. (Rbj0) for a   /
                                       treated hazardous- waste,   ,-
                                         (i) The fraction of -organics         -
                                       biodegraded ^Fbio) shall be determined
                                       using fee: piocedmej specirledi ra 40. CER.
                                       part 6a, appendix.G a£this.chapteK
                                       ,  (ii) The organicbiodegraHatiGir
                                       efficiency. shaLLbe1 calculated! by
                                       Che5 fbliowing' equation::
                                         where:
     percent?. - *    '   '  :       .
 Fbio;= Fraction; afiorgamcModegradeidl as
     determined1 in aceiwdanee' wiffi< tte
     requirements' ofparagraph1
   (3lFrocedura to determine the
 required organicmass.removal, rate
 (RMR) .for a,trealied"liiizardoiis waste.,
   (i) The pouu\o£waste,originatioji Sax.
 each hazardous; waste treated by tire:
 process at. the; same; tima shall bflj
r-identi30d;.             '          •'..-.
   (ii) For eack hazardous, waste steeam.
 identified, to paragraph- (b)(,8Mi)< of this; -
 section,;the7Vb>GQia!entTaliDniQf1 the,
 hazandous. waste stream at. the Boiato£  '
 waste originatfon--shaJlb£:deterinHied'.iai
 accordance wito the. requkementa, oil.
 paragraph (a) of this,seGtkini
   (iii) For each; iztdrviduali hazardous;
 waste stream.' that hasia-.volatlte orgaaaie:
 coneentratrDir.aqBalctcRorrgTeaterrthan; .i  •
 100 ppmw at the point- of waste;
 witk-theirequirementaofiparagraphi
 .(b)(a)iii):of this;sectiiwi,.tiie average:   •
• volumeteic;flEraiv;EatB:(i£hazardon8i waste;
 at the point afiWastff.ordgiaaticmiaiiditlie: :
 densitjf! of tferhazardoirB- waste; steeanB"
 shall be determined.
   (iv) The>requi'red; organic'mass;
 removal! rate< for' fee hazardous- waste>-
 shall-'-beEalctiteted'.by.Tasing-tlle results
 determinerd for «aefe ikdividuai
 hazardous waste stream' in- accordance
 (b)(ff)(ii.)>and: f
 and the following equatrbar
        y=l>|
                                                                                                         ro°
   where:
 RMR'=
     .rate,
     .raie, KgMic.,                 •
 y = Individual hazaudausr wasta stceaai.
     "y" tiiat has a volatile organic.
     csoneentratioiiiequaitoi or greater  .
     than- lOjQ.ppiaw at.the-point of
     waste-origin^aoa aa determined-dn:
 •. ,  aceordaneer \wiih the r.equirement-3;
 n = Totahnumfaer. ofi "y'' hazardous:
     waste-streams" treated- by proeeas-.
 Y>-=.- Average wqlianEtricfTDW rate-of '
     hazardous; waste: stream: "y," atihe;
     point of viastB; origination^, m?5(te
 ky-= Density of hazardous: waste stream;
 Cy- =
     hazardous waste stream "y". at1 the.- .
 '  •  point 09 waste origination -as-
     determirted; ira- accordance1 with the:

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            Federal Register 7 Vol. 59.No. 233 /Tuesday, December 6, 3994 7
                                            Rules  and Regulations   62943
   ; (9) Procedure to determine the actual
  organic 'mass removal rate (MR) fora
 • treated hazardous-waste.  .  •- '  .  l  ,
    (i) The actual-organic mass removal
  rateshaill be determined based on
 . " Jesuits for a minimum of three
  consecutive runs. The samplingtime for.
  each run shall be 1 hour.
 -   , (ii)-The waste volatile organic mass
  flow entering the process (Eb) and the
  waste volatile organic mass flow exiting
 "the process (EJ shalibe determined in
  ^accordance" with the requirements of
  paragraph (b)(6)(iv) of this section.
   . (iii) The actual organic mass removal
  rate shall be calculated by using the "  '
  results 'determined in accordance with
  the requirements of paragraph (b)(9)(ii)
  of this section and the following ;
 •equation:  '-"'-,'
  MR = Eb'- Ea     '  -      ' •  •-: i . .-. •'  ' ,
 /where:    •    '"•••        ,     . '  •     •
  MR.= Actual organic mass removal rate,
      kg/far.' -.:    -.-.   .       v
  Eb —Waste ^volatile organic mass' floxv '
      entering process as determined in  ,
     ' accordance with the requirements
      of paragraph (b)(6)(iv) of this
      section, kg/hr. .            '   .
  Ea = Waste volatile organic mass flow
     -exiting process as determined in  •-:.
      accordance with the requirements^
      of paragraph (b)(6)(iv).of this
      section, kg/hr.'  -
    (10) Procedure to determine the actual
  organic mass biodegradation rate (MRbk>)
  foria treated hazardous waste.-   -    "• -
    (i) The actual-organic mass        ,
 3jiodegradation rate shall be detennujed
 .based on Jesuits for a minimum /of three
 .consecutive runs. The sampling time for
 each , run shall. be 1 --hour.  -..-      -; ,
    (ii) The waste organic mass flow  ;
 entering; the process (Eb) shall be
 •determined in accordance with the
 requirements of paragraph (b)(6)[iv) of   '
 this section.           .:  -     .
 •• * (iii) The fraction of organic       • '•  -
 biodegralded (Fbio) shalibe determined
 using th£ procedure specified in 40 CFR
 part 63, appendix C.
    (iv) Tlie actual  organic mass
 bipdegra!dation rate shall be calculated
 by using the mass flow rates and
 fraction of organic biodegraded
 determined in accordance with the
 requirements of paragraphs (b)(10)(ii)
 and (b)(io){iii) of this section arid the' .--,
 • following equation:   ,  •"•-.-•   -   - ;
 •
  Where: :
    >•= Fraction of organic biodegraded as
     •determined in accordance with the
     requirements of paragraph.
     "    	  ""issection.
         =. Actual organic mass
  biodegradation rate, kg/hr.  r •    •
  Eb = Waste organic mass flow entering
      process as determined in
      accordance with the requirements
^      of paragraph (b)(6)(iv) of this
      section, kg/hr.
   (c) Procedure to determine the
 'maximum organic vapor pressure of a
 hazardous waste in a tank.   •  '
   (1) An owner or operator shall    • -
 de'termine the maximum organic vapor
 pressure for each hazardous waste
 placed in a tank using air emission
 controls in accordance with standards •
 specified in § 265.1085(c) of this :
 subpart.   .-• •      .   •
   (2) An owner or operator shall use
 either direct measurement as specified
 in paragraph (c)(3) of this section or
 knowledge of the waste as specified by
 paragraph (c)(4) of this section to
 determine .the maximum organic vapor  .
 .pressure which is representative of the
 hazardous waste composition stored or
 treated in the tank.
   (3) To determine the maximum
 organic vapor pressure of the hazardous
 waste by direct measurement, the    .
 following procedure shall be used:
   (i) Representative samples of the
 waste contained in the tank shall be
 collected. Sampling shall be conducted
 in accordance, with the requirements
 specified in "Test Methods for
 Evaluating Solid Waste, Physical/
 Chemical Methods,"'EPA Publication
 No. SW-846, Third Edition, September
 1986, as amended by Update I,
 November 15,1992 (incorporated by
 reference-prefer to §260.11 of this   . -
 chapter).'      '      ...'--
; .--{ii} Any appropriate .one of'the  ;  '.  ..,-
 following methods-may be used to,,
 analyze the samples and compute-the
 maximum organic vapor pressure:
   (A) Method 2gp in 40 CFJR part 60,
 appendix A;
 :  (B) Methods described in American
 Petroleum Institute Publication 2517,
 Third Edition, February 1989,
 "Evaporative Loss from External
 Floating-Roof Tanks," (incorporated by   •
 reference—refertq §260.11 of this
 chapter);   .         •'.          •
   (G) Methods obtained from standard
 reference texts;
   (D) ASTM Method 2879-92
 (incorporated by reference—refer to
 §260.11 of this chapter); or
  •(E) Any other method approved by the
 Regional Administrator.
  f 4) To. determine the maximum
 organic vapor pressure of the hazardous
 waste by knowledge, sufficient
 information shall be prepared and   '
 recorded that documents the maximum
 organic vapor pressure of the hazardous
 waste in the tank. Examples of .
 information that may be used include:,
 documentation that the waste is
 generated by a process for which Jio   ;
 orgsiriics-containing materials are used;,
 or that the waste.is generated by a
 proress fo'r which at other locations it
 pre^pously has been determined by
 direct measurement that the waste
 ma^timuin organic vapor pressure is less
 than the maximum vapor pressure limit
 for the appropriate design capacity
 category specified for the  tank.

 §265.1085 Standards: Tanks.
 .  (a) This section applies to owners and.
' operators of tanks subject to this subpart
 into which any hazardous waste is. ..
 placed except for the following tanks:
•   . (Ii) A tank in which all hazardous
 waste entering the tank meets the
 conditions specified in § 265.1083(c) of
 this subpart; or       "
   (2) A tank used for biological
 treatment of hazardous waste in
 acccirdance With the requirements of
 § 265.1083(c)(2Kiv) of this subpart.  ~
   (b) The owner or operator shall place
 the hazardous waste into one of the '
-following tanks:
•  (1) A tank equipped "with a cover (e;g.,
 a 'fixed roof) that is vented through a
 closed-vent system to a control device .•
 in accordance with .the requirements
 specified-in paragraph (d) of this ,--.,.
' section; '    •   ^ '•  .  .    .-•••>,.'•-••'...
   (2) A tank equipped with a fixed roof
•- and internal floating roof in accordance
 with the requirements of § 265.1091'of
 this subpart; ,         •   •
   (3) A tank equipped with an external
"floating -roof in accordance with the
.requirements of §265.1091 of this
 subjiart;Br  .    • .        -   •-•   ,
   (4| A pressure tank that  is designed to
'operate as a closed system such that the
 tank; operates with no detectable organic
 emissions at all. times that hazardous  '
waste, is in the tank except as provided •
 for in paragraph, (g) of this section.,:
   (c]j.As an alternative to complying
With paragraph (b) of this section, an   ,
 owneir or operator may place hazardous
waste in a tank equipped with a,.cover
 (e.g.,; a fixed roof) meeting the •       •-.
requirements specified in paragraph
 (d)(l) of this section when the '•,...
hazardous waste is determined to meet
all of the following conditions:
   (l]l The hazardous waste is neither
mixe|d, stured, agitated, nor circulated
withjn the tank by the owner or operator
usinjg a process that results in splashing,
frothing, or visible turbulent flow on the
wastp surface during normal process
operations;
   (2]i The hazardous waste in the tank
is mot heated by the owner of operator
except, during conditions requiring that
the waste be heated to prevent the waste
from freezing or to maintain adequate

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 62944'  Federal Register / Vol. '59;-No. 233 7 Tuesday,December 6, 1994 / Rules.and Regulations
 waste flow conditions for continuing _  .
 normal process operations;  ',..'  '    •
   (3) The hazardous waste in the tank   •
.is not treate.d by the owner or operator
 using a waste stabilization process or a
 process that produces an exothermic
 reaction; and
   (4) The maximum organic vapor
 pressure of tide hazardous waste in the
 •tank as determined using the procedure •
 'specified in § 265.1084(c) of this subpart
 is less than the following applicable
 value:
   (i) If the tank design capacity is equal
 to or greater than 151 m3, then the
 maximum organic vapor pressure shall •
 be less than 5.2 kPa;
   (ii) If the tank design capacity is equal
 to or greater than 75 m3 but less than
 151 m3, then the maximum organic
 vapor pressure shall be less than 27.6  ^  •
 kPajor                            '
   (Hi) If the tank design capacity is less
 than 75 m3, Chen the maximum organic.
 vapor pressure shall be less than 76.6
 kPa.            *         .
'  (d) To comply with paragraph (b)(l) of
 this section, me owner or operator shall
 design, install, operate, and maintain'a
 cover that vents the organic vapors
 emitted from hazardous  waste in the .
 tank through a closed-vent system
 connected to a control device.
    (1) The cover shall be  designed and
 operated to meet the following         •
 requirements:   '
    (i) The cover and all cover openings
  (e.g., access hatches, sampling ports,
 and gauge wells) shall be designed to.'
  operate with no detectable organic
  emissions when all cover openings are  .
  secured in a closed, sealed position.
   ' (ii) Each cover opening shall be
  secured in a closed, sealed position ^.
  (e.g., coveredbyagasketedlidorcap)  ;;
  at all times that hazardous waste is in
  the tank except as provided for in  .
  paragraph (f) of this  section.         ,.
    (2) The closed-vent system and
  control device shall  be designed and
  operated in accordance with the
  requirements of § 265.1088 of this
  subpart.'  „
     (e) The owner and operator shall
  install, operate, and,maintain enclosed
  pipes or other closed systems for the
  transfer of hazardous waste as described
   in paragraph (e}(l) or (e)(2) of this
   section. The EPA considers a drain
   system that meets theTequirements of
   40 CFR 61.346(a)(l) or 40 CFR  ,
   61.346(b)(l) through (b)(3) to be a closed
 ,  system.
     (1) Transfer all hazardous waste to the
   tank from another tank, surface
   impoundment, or container subject to
   this subpart except for  those hazardous
   wastes that meet the conditions
specified in § 265.1083 (c) of this  • ,
subpart; and . ' •         .   •
  .(2) Transfer all hazardous waste from  .
the tank to another tank, surface
impoundment', or container subject to
.this subpart except for those hazardous
wastes that meet 'the conditions
specified in § 265.1083 (c) of this
subpart.
   (f) Each cover opening shallbe  .
secured in a closed, sealed position
(e.g., covered by a.gasketed lid) at all   ,.
times that hazardous waste isin the
tank except when it is necessary to Tis'e
the cover opening to:       v   ...
.  ..-(I) Add, remove, inspect, or sample
the material in the tank; •  ,   ,
   (2) Inspect, maintain, repair, or
replace .equipment located inside the ;
tank; or     ..
   (3) Vent gases or vapors from the tank
to a closed-vent system connected to .a
 control device that is designed and  '  r
 operated in accordance with the
 requirements of § 265.1088 of this
 subpart.      ,   .     ,     .  • : _  :
   (g) One or more safety devices which
" vent directly to the atmosphere may be
 used on the tank, cover, closed-vent
 system, or control device provided each
 safety device meets all of the following
 conditions:           •'-.'-..
   (1) The safety .device is not used for
 planned pr routine venting of organic';  _,
 vapors from the tank or the closed-vent .
 systeinTconnected to a  control device;
 and   ,  '  .           ",   •'..;' •;
  • (2) Th'e safety device remains in a
 closed, sealed position at all times
 except when an unplanned event   .. '"
 requires that the device "open for the
• .purpose of preventing physical damage
. or permanent deformation of the tank,
.„ cover, closed-vent'system, or. control
 device in accordance with-gopd
-.engineering and safety practices for
 handling flaminablercombustible,
 ^explosive, .or other hazardous materials.
 An example of an unplanned event is a
 "sudden power outage.  •
  §265.1086 Standards:  surface
  Impoundments. '         '  -\   ..  •.
    (a) This section applies to owners and
  operators of surface impoundments
 . subject to this subpart into which any
  hazardous waste is placed except for the
  following surface impoundments:  _.
    (1) A surface impoundment in which
  all hazardous waste entering the surface
'  impoundment meets the conditions
  specifiedin §265.1083(c) of this
  subpart; or              .
    (2) A surface impoundment used for
  biological treatment of hazardous waste
  in accordance with the requirements of
  § 265.1083(c)(2)(iv) of this subpart.
     (b) The owner or operator shall place
  the hazardous waste into a surface  ''
impoundment equipped with a cover  .  ,
(e.g., an air-supported structure or a
rigid cover) that is vented through a
closed-vent system to a control device   .
meeting the requirements specified in
'paragraph (d) of this section.  •••-••
   (c) As an alternative to complying
with paragraph (b) of this section, an
'•owner or operator'may,place hazardous •
• waste in a surface impoundment  '  .  , '
equipped with a floating membrane .
coyer meeting the requirements        ' •..
specified in paragraph (e) of this section
•• when the hazardous waste is        .
 determined to meet all 6f the following
 conditions:                   •
 1  (1) The hazardous  waste Is neither
 mixed, stirred, agitated, nor circulated
 within the surface impoundment by'the .;,
 owner or operator .using a process that
 results in splashing,  frothing, or visible
 turbulent fiow'onUie waste surface
 during normal process operations;
   (2) The hazardous waste in-the surface
 impoundment is not heated by the
 Owner or operator; and    . .       •;'.  •
   (3) The hazardous waste in the surface
 impoundment is.not treated by;the
, owner or operator using a waste
 stabilization process or a process that,   .
 produces an exothermic reaction. •.     :
   (d) To comply with paragraph (b)(l) of.
-this section, me owner or operator sha.ll
 design, install, operate, and maintain a
 cover mat vents the organic vapors
 emitted from hazardous, waste in the   ,
 surface impoundment through a closed-'
 vent system connected to, a control-
 device.
    (1)-The cover shall be designed,
 installed, operated,-and maintained to
 meet the following requirements:
    (i) The cover and all cover openings
  (e.g., access hatches, sampling ports,
  and gauge wells) shall be designed to
  operate with.no detectable organic
  emissions when all cover openings are.
  secured'in a closed, sealed position.  -
    (ii) Each cover opening shall be
 -secured in the closed, sealed position
  (e.g., covered by a gasketed lid or cap)
  at all times that hazardous waste is in,
  the surface impoundment except as
  provided for in paragraph (g) of this
  section.
    (iii) The closed-vent system  and  '
  control device shall be designed and
  operated in accordance with § 265.1088
  of'this subpart.
    ,(e) To comply with paragraph (c) of
 v this section, the owner or operator shall
 • design; install, operate, and maintain a .
  floating-membrane cover that meets all
  of the following requirements:
     (1) The floating membrane cover shall
  be.designed, installed, and operated
   such that at all times when hazardous
   waste is4n the surface impoundment,
   the entire surface area of the hazardous

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       _H- Tederal Register / ^61. 59,rNo. 233 /.Tuesday/peceinber'iD-, 1994  /j/Jfoles and Regulations   612945

  waste is enclosed byfhe cover, and any
  air spaces underneath the cover are not
  vented to the atmosphere except during
  conditibn&«pecifieddh paragraph"(h) of
 :'-thisseqtion.;. ,   •  ..
    '(2) The floating membrane -cover and
  all cover openings (e.g., access hatches;
  sampling ports, and gauge wells) shall :.
 ,be designed'to operate with ho.  - V  '
  detectable organic emissions when-all.
  cover openings are secured in a closed,
  sealed position.  "    -•   :    ,  -:^ •.".' *•...-.
-   (3) Each coyer opening shall be     -
  secured in a closed, sealed position
  (e.g., covered by a gasketed lid or cap)
  at all times that hazardous waste is in  .
  the surface impoundment except as
  provided for in paragraphs (g)(l)
 'through: (g)(3) of this section; and
•:  -(4) The synthetic membrane material
 . used for the floating membrane cover
 shalTbeieither:  .;..   -
    (i) High density polyethylene with'a
 thickness no less than^.5 mm; or  -
    (ii) A material or a composite of
 different materials determined to have
 the following properties:   •
  .  (A)'Organic permeability properties , ,
 that are;equivalent to those of the
 material specified in paragraph (e)(4)(i)
 "of this section;-arid         •  -•..    .
   {BJ Chemical and physicaljiroperties
 that maintain the material integrity for
• -as long as the cover is in use. Factors
• that shall be considered in selecting the
 material include: the effects of contact  •:
 with 'the waste managed in the
. impounjiment, weather exposure, and
 cover installation and operation   .
 practices. '.-•-  -   ;.-  ::•. - ._•_• . •      _-
   (fj The owner or operator shall install,.
 operate, and maintain enclosed pipes or
 other closed systems for the transfer of
 hazardous waste as described in
 paragraph (f)(l) or (f)(2) of this section.
 The EPA considers a drain system that
. meets the requirements of 40 CFR
. 61.346(a'){l) or 40 GER 61,346(b)(l)   .
 through j(b)(3) to be a closed system.
   (1) Transfer all hazardous waste to the
 surface impoundment from another
 tank, surface impoundment, or  ,
 container subject to this subpart except
 for'those hazardous wastes that meet the
 conditions specified in § 265.1083(c) of
-this sufapart; and      ...
   (2) Transfer allhazardous waste from
 the -surface impoundment to another
 tank, sui-face impoundment,or
 container subject to this subpart.except
 for thosej hazardous wastes that meet the
 conditions specified in § 26 5.1083 (c) of  -
 this subpart    :  .          .
   (g) Each cover opening shall be
isecured p the closed,:sealed position .
 (e.g.i.eoyered by a gasketed lid or cap)
 at all times that hazardous waste is in
-the surface impoundment except when
 itisnecessary to use the "cover opening
•-to:  , .    .'.   •';.'. ..'• -;.  .    -.'
   (1) Add; remove, inspect, or sample -
 the material in the surface
 impoundment;
   (2) Inspect, maintain; repair, or
 replace equipment located underneath
 thecover; ...  ' '.-•'.-'•   •.'
'.  (3) Remove treatment residues from
 the surface impoundment in accordance
 with the requirements of 40 CFR 268.4;
:0r  ' " •• "-• -: •  ':-'-' ''•"- •'. •"-',  -'.'-;. •   '.'   • '.'
   (4) Vent gases or vapors 'from the
 surface impoundment to a closed-vent "
. system connected to a control device
. that is designed and operated in  • '   >:
- accordance with the requirements of
 § 265.1088 of this subpart.
   (h) One or more safety devices that  .
 vent directly to the atmosphere may be
 installed on the cover, closed-vent
 system, or control device provided each
 device meets all of the following
 conditions:
  ,(1) The safety device is not used for
 planned or routine venting of organic
 vapors  from the surface impoundment
 or .the closed-vent system connected to
 a control device; and
   (2) The safety device remains in a •
 closed, sealed position at ail tunes
 except when an unplanned event
 requires that the device open for the
 purpose of preventing physical damage
 or permanent deformation of the cover, ,
 closed-vent system, or control device in
 accordance with good engineering and
 safety practices for handling flammable,
 combustible, explosive, or other
 hazardous materials. An example of an
 unplanned event is a sudden power •
 outage.          '  :.-'-  '  .   -

 §265.1087 Standards: Containers.  .
  .(a) This section applies to the owners
 and operators of containers having
 design capacities greater than 0.1 m3
 subject  to this subpart into which any
 hazardous waste is placed except for a.
 container in which all hazardous waste
 entering the container meets the
 conditions specified in"§ 265.1O83(c) of
this subpart.      ' '   -•>
  (b) An owner or operator shall manage
hazardous waste in containers using the
 following procedures:
  (1) The owner or operator shall place
the hazardous waste into one of the
following containers^except when a ,
container is used for hazardous waste
treatment as required by paragraph
(b)(2) of this section:              •-•--.
  (i) A container that is equipped with
a cover which operates with no
detectable organic emissions when all
container openings (e.gi, lids, bungs,
hatches,; and sampling ports) are
secured in a closed, sealed
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 62946   FederaJ'Tle^ister /  Vol. 59, No' "233 /.Tuesday, December 6, 1994;/ Rules and Regulations
 vented through a closed-vent system to
 .a control device.            '  • "   ",'.-.'  ,
   (il) The endosure shall be a structure
 that is designed and operated in ,,-
 accordance with the following"
 ^requirements:'                   .    >
   (A) The enclosure shall be a structure,'
 that is designed and operated with '  "  ',
 sufficient airflow into the structure to',
 capture the organic vapors emittedIrom
 the hazardous waste in the container
 •and vent the vapors through the closed-
 vent system to the control device.
   (B) Tho enclosure may have
 permanent or temporary openings-to
 allow worker access; passage of
 containers through the enclosure by
 conveyor of othermechanical means; .
 entry of permanent mechanical or
 electrical equipment; or to direct airflow
 into the-enclosure. The pressure drop
 across each opening in the enclosure
 shall be maintained at a pressure below
 atmospheric pressure such that      _
 whenever an open container is placed.
 insido the enclosure no. organic vapors
 released from the container exit the
 enclosure through the opening. The '
  owner or operator shall determine that   .
  an enclosure achieves this condition by
-. measuring the pressure drop across each
 .opening in the enclosure. If the pressure
  within the enclosure is equal to or     "
  greater than atmospheric pressure then
  the enclosure does not meet the      ",'.,
  requirements of this section.
 .  (iii) The closed-vent system and
  control device shall be designed and^
  operated in accordance with "the  ",x  "';
  requirements of § 265.1088 of this
  subpart.                          .  "
    (3) An owner or operator transferring
  hazardous waste into a container having
  a design capacity'greater than 0.46 m3 •
  shall meet the following requirements: .
    (i) Hazardous waste transfer by;
  pumping shall be performed using a
  conveyance system that uses a tube (e.g.,
  pipe, hose) to add-the waste into the  .
  container. During transfer of the waste
  into the container, the cover shall    •"
  remain in place and all container
  .openings snail be maintained in a
  dosed, sealed position except for those
  operiings through which the' tube enters
  the container and as provided for in'
  paragraph (c) of this section. The tube
  shall be positioned in a manner such
  that either the:
     (A) Tuba outlet continuously remains
   submerged below the  waste surface at
   all times waste is flowing through the
 -  tube;
     (B) Lower bottom edge of the tube  ,
   outlet is located at a distance no greater
   than two inside diameters of the tube of
   15.25 cm, whichever distance is greater,
   from the bottom of the container at all
times waste is flowing through the tube;
or
  (C)Tube is connected to a permanent
port mounted on the bottom of the
container so that 'the lower edge of the
port opening inside the container is   :
located at a distance equal.tp or less .  •  .
than 15.25 cm from the container
'bottom.
  .pi) Hazardous waste transferred by a
•means other than pumping shall be
performed such that during transfer of  .
the waste into the container, the cover  :
remains in. place and all container
openings are maintained in a closed,
sealed position except for those  •
- openings through which the hazardous
waste is added and as .provided for in  •
paragraph (d) of this section.
   (c) Each container opening shall be
maintained in a closed, sealed position
 (e.g., covered by a gasketed lid) at all
times that hazardous waste is in the
 container except when it is necessary .to
use the opening to:      "
   (1) Add, remove, inspect, or sample
 the material in the container;
   (2) inspect, maintain, repair, or    "
^replace equipment located inside the ,
. container; or  .--"..   --  ,     ...    .  ;'
'  (3) Vent gases or vapors from a cover
 located over or enclosing an open,
 container to-a closed-vent system  '-,  -
 connected to a control device that is
 designed andoperated in .accordance
 with the requirements of § 265.1088  of
 thissubpart.    .                   :
   (d) One or more safety devices that
 vent directly to the atmosphere may  be
 used on the container, cover, enclosure,
' closed-vent system, or control .device
 provided each device meets all of the
 following conditions: •   -
   (1) The safety device is not used for
 planned or routine venting of organic ,
/vapors from the container, cover,    .  •
 enclosure, or closed-vent system .
 connected to a control device; and
   (2) The safety device remains in a
 "closed, sealed position at all times
 except when an unplanned event
 requires"that the device open for the
 purpose of preventing physical .damage
• or permanent deformation of the  •
 container, cover, enclosure, closed-vent
 system, or control device in accordance
- with good engineering and safety
 practices for handling flammable,
 combustible, explosive, or other-
 hazardous materials. An example of an.
 unplanned event is a- sudden power
  outage.         .    .  i

  §265.1088  Standards: Closed-vent
  systems and control devices.
    (a) This section applies to each
  closed-vent system and control device
  installed and operated by the owner or
  operator to control air emissions in   ' ,
 accordance with standards of this  	
 subpart.  •     ., r -.••'.•
   (b) The closed-vent system shall meet
 the following requirements:      .       .
   (1) The closed-vent system shall route
 the gases, vapors, and fumes emitted
 from the hazardous waste in the waste
 management unit to a control device
' that meets the requirements specified in
1-paragraph "(c) of this section.'  .• .
   .(2) The closed-vent ^system shall be
 .designed and operated in accordance -
 with the requirements specified in
:§265.1033(j) of this part.
  . .(3) If the closed-vent system contains  ;
 one 'or more bypass deviceVthat could •
"be used, to divert all or a portion of the
 gases, vapors, or fumes from entering  ;
- the control device, -the owner or        ,
 operator shall meet the following
 requirements:
   (i) For each bypass device except as
 provided for in paragraph (b)(3)(ii) of
 this section, the owner or operator shall
 either:   '  •  - -                  "':' "
    (A) Install", calibrate, maintain, and, _
 operate a'flow indicator at the inlet to
 "•the bypass device that" indicates at least  .
 •once every 15 minutes whether gas,  -—•
 'vapor, or fume flow is present in the
• bypass device; or    -  -'  .     .'•-'•••
    (B) Secure the valve installed at the
 inlet to the bypass device in the closed
 '. position using a car-seal or a lock-and- •
 "key type configuration. The owner or'•'
  operator shall visually inspect the seal -
  or closure mechanism at least once   .
 - every month to verify that the valve is :
  maintained in the closed position.
    (ii) Low leg drains,-high point bleeds,
  analyzer vents, open-ended valves or
.  lines, and safety devices are not subject
  to.the requirements of paragraph
  (b)(3)(i) of this section:
    (c) The control device shall meet the
  following requirements:
    (1) The control device shall be one of
  the following devices:
    (i) A control device designed and
  operated to reduce the total organic
  content of the inlet vapor stream vented
  to the control device by at least 95
  percent by weight;            .
    (ii) An enclosed combustion device
  designed and operated in accordance;
  with the requirements of § 265.1033(c);
  or               ,         •
    (iii) A flare designed and operated in
 - accordance with the requirements of
   §265.1033(d).                .'.»...  :
    •(2) The control device shall be
   operating at all times when gases,   . ..
  vapors, or fumes are vented from the
   waste management unit through the ,•.
  . closed-vent system to the control
   device.   '.,-•'
     (3) The owner or operator using a
   carbon adsorption system to comply
   with paragraph (c)(l) of this section

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             "Federal Register / Vol. 59, No.' 233  /  Tuesday. December 6. 1994 j/ Rules  and Regulations  62947.
   -shall operate and maintain the control
  .  device in accordance with the^following
"••- .jrequirjements;: > '._•-,'  "-•'-'."'•''
-_•-.  " - (i)rFIollowing the initial startup of the
 ,. -control device, all activated carbon in
  - 3he control device shall be replaced
   ' with:fresh carbon on a regular basis in
    accordance with the requirements of
    §2654033(g)or§265.1033(h).    .
j.>:^  -(ii) All carbon removed from the /
.  ;.„• 'control device shall be managed in
^- accordance with the requirements of
 ;;;§ 265.1033(1).   v       :     '
     (4) An owner or operator-using a
  ' control device other than a thermal
 : vapor incinerator, flare, boiler, process
.•   . heaterj condenser,-or carbon adsorption
   system to comply with paragraph (c)(l)
   of thisjsection shall operate and
  .-maintain the'control device in
   accordance with the requirements of:
   §265.1033(i).
     • (5) The owner or operator shall
   demonstrate that a control device
   achieves the'performarice requirements
   of paragraph  (c)(l) of this section as
   follow?:                '
-    (i) Afa owner or operator shall
~  demonstrate using either a performance
   test as specified in paragraph (c)(5)(iii)
   of this section or a design analysis as
   specified hi paragraph (c)(5)(iv) of this
   section the performance of each control
   device iiexcept for the following:
     (A) A flare;                     •  (
     (B) A ibiler or process heater with a   ^
   design jheat input capacity of 44
   megawatts or greater;
    • (C) A boiler or process heater into
   which the vent stream is introduced
   with the primary fuel;
     (D) A boiler or process heater burning
   hazardous waste for which the owner or
   operator hasbeen issued a final permit
   undergo CFRpart 270 and designs arid
  ' operates the unit in accordance with the
   requirements  of 40  CFRpart 266,
   subpart H; or    .         ,   .    -
    • (E) Ap boiler or process heater'burning  '
   hazardous waste for which the owner or'
   bperatpr has certified compliance with
   the.interim status requirements of 40
   CFR part 266, subpart H.
  1   (ii) An owner or operator shall
   demonstrate the performance of each
 .. flare in (accordance with the
   requirements specified in § 265.1033(e)."
     (iii) For a performance test conducted
   to meet the requirements of paragraph
   (c)(5)(i)' of this section, the owner or
   operator shall use the test methods and
   procedure's specified in § 265.1034(c)(l)
.  . through (c)(4).
     (iv) EOT a design analysis conducted
   to meet the requirements of paragraph
   (cj(5)(i) I of this section, the design    -.,.-.•
   analysis shall meet the requirements
   specified in § 265.1035(b)(4)(iii).
    (v) The owner or operator shall
  demonstrate that a carbon adsorption  -
  system achieves the performance
  requirements of paragraph (c)(l) of this
  section based on the total quantity of
  organics vented to the atmosphere from
  all carbon adsorption system equipment
  that is used for organic adsorption,
  organic desorption'or carbon-
 , regeneration, organic recovery, arid
'  carbon disposal.  T"      . •;
•    (6) If the owner or operator arid the"
  Regional Administrator do not agree on'-,
  a demonstration of control device
  performance using a design analysis
  then the disagreement shall be resolved
  using the results of a performance test
  performed by the owner or operator in
  accordance with the requirements of
; paragraph (c)(5)(iii) of this'section. The
  Regional Administrator may choose ,to
  have an authorized representative
  observe the performance test'.

  §265.1089.  Inspection and monitoring
  requirements.
   (a) This section applies to an owner
  or operator using air emission controls
  in accordance with the requirements of.'
  § 265.1085 through §265.1088 of this
.subpart.                   ...   .
   (b) Each cover Used in accordance
 with requirements of § 265.1085 through
 §265.1087 of this subpart shall be
 visually inspected and monitored for
 detectable organic emissions by the
 owner or operator using the procedure
 specified in paragraph (f) of this section
 except as follows:
   (1) An owner or operator is exempted
 from performing the cover inspection
 and monitoring requirements specified
 in paragraph (f) of this section for the
.following tank covers:
   (i) A tank internal floating roof that is .
.inspected and monitored in accordance
 with the requirements of § 265,1091 of
 this subpart; or
  (ii) A tank external floating roof that
 is inspected and monitored in
 accordance  with the requirements of
 §265.1091 of this subpart.
  (2) If a tank is buried partially or
entirely underground, an owner or
operator is required to perform the coyer
inspection and monitoring requirements
specified in paragraph (f) of this section
only for those portions of the tank cover
arid those connections to the tank cover
or tank body (e.g. fill ports, access
hatches, gauge wells, etc.) that extend to
or above the ground surface and can be
opened to the atmosphere.
  (3) An owner or operator is exempted
from performing'the cover inspection
and monitoring requirements specified
in paragraph (f) of this section for a  s
container that meets all requirements
  specified in either §265.1087.(b)(i)(ii) or
  §2!65,l087(b)(l)(iii) of this subpart.
    (4) An owner or operator is exempted
  from performing the cover inspection
  and monitoring requirements specified
  in paragraph (f) of this section for an
  enclosure used to control air emissions
  frcjm containers" in accordance with the
.'.. requirements of §265.1087(b)(2) of this
  sulbpart.
    :(c) Each closed-vent systern used in
  accordance with the requirements of
  § 265.1088 of this subpart shall be
  .inspected and monitored by the owner
  or operator in accordance with the
  procedure specified in § 265.1033(j).   .
    (d) Each control device used in
  accordance with, the requirements of
  § 2p5.l088 of :this  subpart shall be
  insipected and monitored by the owner
  or operator in accordance with the
  procedure specified in §265.1033(f)..
    (e) The owner or operator shall
  develop and implement a written plan
  /and schedule to perform all inspection.,
  and monitoring requirements of this
  section. The owner or operator shall
  incorporate this plan and schedule into
  the| facilityjnspection plan required
  under 40 CFR 265.15.       1
    (f) Inspection and monitoring of a    .
  coyer in accordance with the  . •."
  req|uirements of paragraph (b) of this
  section shall performed as follows:
    (i) The cover and all cover openings
 -shaill be initiaUy visually inspected and
  monitored for detectable organic    •
  emissions on or .before the date that the
  tank, surface impoundment>-or
  container using the cover becomes
 .s'ubiject to the provisions of this subpart
  and at .other times  as requested by the
  Regjional Administrator.         }
    (2) At least once every 6 months .'.-
 .following the initial visual inspection
  and monitoring.for detectable organic
  emissions required under paragraph
  {f)(;L) of this section, the owner arid
  operator shall visually inspect and,
  moMtor.the cover and each cover
  opening except for following cover
  openings:          :        .
    (i) A cover opening that has"
  continuously remained in a closed,
  sealed position  for the entire period
' since the last time the cover .opening
 was; visually inspected and monitored
  for detectable emissions;
   (ii) A cover opening that is designated
 as unsafe to inspect and monitor in *  :
 .acqprdance with paragraph (f)(5) of this
 section;
   (iid) A cover opening on a cover
 installed and placed in operation before
 December 6,1994, that is designated as
 difficult to inspect  and monitor in
 accordance with paragraph (f){6) of this
 section.

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62948  Federal .Register /Vol. 59, No. 233 / Tuesday. December  6,yl994 / Rules and Regulations
   (3) To visually inspect a cover, the
 owner.or operator shall view the entire
 cover surface and each cover opening in
•.a closed, sealed position for evidence of
 any defectlhatmay affect the ability of
 the cover or cover opening.to continue
 to operate with no detectable_organic
 emissions. A visible holet gap, tear, or.
 split in the cover surface or a cover
 opening is defined as a leak which shall
• be repaired in accordance with
 paragraph (f)(7) of.this section.
   (4) To monitor a cover for detectable
 •organic emissions, the owner or
 operator shall use the following
 procedure:       ,  	
   (i) Method 21 in 40 CFRpart 60,
 appendix A to test each cover seal and
 cover connection for detectable organic
 emissions. Seals on floating membrane,..
 covers shall be monitored around the
 entire perimeter of the cover at locations
 spaced n
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            Federal Register / Vol. 59, No.  233 / Tuesday, December 6, 1994 T Rules and Regulations  62949
     (6) Records for all visual inspections '.
   conducted in;accordance with the   -•
 •  requirements of §'265.1089 of this  ;
-• .•subpart.,/-. ;  .;';'„•'•'-;•.•--u-.  -,.... ..--. •    ; .•:••'.
-     (7) Records for all monitoring for
   detectable organic emissions conducted
   in accordance with the requirements of
   §265.1089 of *his subpart.      -
     (8) Records of the date of each attempt
   to repairs leak,.repair methods-applied,
-  and the date .of successful repair.    -
 ;   (9") Records for iall continuous  .--.  .
  .monitoring conducted in accordance •  •
  .with the requirements of § 265.1089 of
   this subpart.  .-•..,'     ,,.    .
    .(10) Records of the management of  -  ,
   carboti| removed from a carbon .,,.  ;
 . adsorption system conducted in
   accordance with § 265.108S(c)(3)(ii) of
   this subpart. •      •••,.', .  '•   -•  •
    (11) Records for all inspections of
  each cover installed on a tank in
  accordance with the-requirements of
  § 265.1p85(b)(2) or § 265.1p85(b)(3) .of
 ;this subpart that includes  information as
  .listed in §265.1091(c) of this subpart.
    (b) An owner or operator electing to , •
  use air [emission controls for a tank in
 , accordance with the conditions     •• •:••.
  specified in §  265.1085 (c)  of this subpart
  shall record the following  information:  .
    (1) Date.and time each waste sample
  is .collected for direct measurement of,
  maodmunv.organic vapor pressure in  :-.-.,
  accordance with §265.1084(c);of this
  subpartl   .•'..       •'..'-•     .
    (2) Results of .each determination for
 - the maximum organic vapor pressure of
  the waste in the tank performed in  ..  > '•
.  accordance with .§265.1084(c) of this
  subparti    •  •_   '•--'•/  .•..'-  =-.   ,
    (3) Records specifying the tank,.;'
. dimensions and design capacity.   .."•
   • (c) Ari owner or operator electing to
 •use air'emission controls for a tank in
 accordance with the requirements of
 §265.1091  of this subpart shall record
 the information required by    • '•••'    •
 §265.109i(c) of this subpart.
•• (d) An owner'or operator electing not
 to use air emission controls for a '    '•
 particular tank, surface impoundment,
 or container subject to this subpart in
 accordance with the conditions •
. specified in § 265.1083(c) of this.subpart
 shall record the information used by the
 owner or operator for each waste .
 determination  (e.g., test results,
 .measurements, calculations/and other
 documentation) in the facility operating
 log. If analysis results for waste samples
 are used for the waste determination, -'•'
 then the owner or'operator shall record
 the date; tune,  and location that each
• waste saimple is collected in accordance
 with applicable requirements of
 § 265.1084 of this subpart.
   (e) An! owner or operator electing to
 comply with requirements in     .
  accordance with § 265.1083(c)(2)(vi) or
  § 265.1083(c)(2)(v) of this subpart shall
  record the identificationinumber for the
  incinerator, boiler,'or'industrial furnace
  in which the hazardous waste is treated.
    (0 An owner or operator designating
 ' a cover-as unsafe to inspect and monitor
  pursuant to § 265.1089(0(5) of this     .
  subpart or difficult to inspect and
  monitor pursuant to §:265.1089(0(6j of
  this subpart shall record in a log that is
v kept in the facility operating record the
.  following information:     . ,
   .(1) A list of identification numbers for\
"  tanks with covers that are designated as
 unsafe to inspect and monitor in
-• accordance with the requirements of   '
 §265.1089(0(5) of this subpart, an
 explanation for each cover stating why
 the cover is unsafe to inspect and
 monitor, and the plan and schedule for
 inspecting and monitoring each cover.
   (2) A list of identification numbers for
 tanks with covers that are designated as
. • difficult to inspect and monitor, in
 accordance with the requirements o'f
 §.265.1089(0(6) of this subpart, an
 'explanation for each cover stating why
 :the cover is difficult to inspect and
 monitor, and the plan and schedule for
-'inspecting and monitoring each  cover.
   (g) All records required by paragraphs
 (a) through (0 of this section except as
 .required in paragraphs (a)(l)^thr'ough
 (a) (4) of this section shall be maintained
 in the operating record for a minimum   •
 of 3 years. All records required by
 paragraphs (a)(l).through (a)(4) of this
 section shall be maintained in the
 operating record until the air emission
 control equipment is replaced or
 otherwise no longer in service.,  -."'
   (h) The owner or operator of a'facility
-that is subject to this subpart and to the
 control device'standards in 40 CFR part ..
 60, sufapart W, or 40 CFR part 61,
' subpart V, may elect to demonstrate •-
 compliance with the applicable sections
 of this subpart'by documentation either
 pursuant  to this 'subpart, or pursuant to
 the provisions of .40 CFR part 60,
 subpart W or 40 CFR part 61, subpart
 V, to the extent that the documentation
 required by 40 CFR parts 60 or 61
 duplicates the documentation required
 by this  section.      .               •

.§265.1091  Alternative tank emissions
 control requirements.
   (a) This section applies to owners and
 operators of tanks electing to comply
with § 265.1085(b)(2) or (b)(3) of  this
subpart.    :    -           •-.'-
   (1) The  owner or operator electing to
comply with § 265.1085(b)(2) of &is
subpart shall design,install, operate,
and maintain a fixed roof and internal
floating roof that meet the following  ,  .
requirements.    .    ,
    (i) The fixed roof shall comply with
  th«! requirements of § 265.1085(d)(l) of
  this subpart. The internal floating roof
  shall rest or float on the waste surface
.  (bift not necessarily in complete contact
  wili, it) inside a tank that has.a fixed
  roof. The internal floating roof-shall be
  floating on the waste surface at all
  times, except during initial fill and
 "dunng thbse intervals when the tank is
... completely emptied or subsequently
  emptied and refilled. When the roof is
  resting on the leg supports, the process
  of idling, emptying, or refilling shall be
  continuous and shall be accomplished
  as rapidly as possible.
    (liJEach internal floating roof shall be
  equipped with one of the following
  closure devices between the wall ,of the
  tank and the edge of the internal floating
>roof:       -'-.  • .'  J'   '-..".   :' •  •
    (A) A foam- or liquid-filled seal ...
 mo;unted in contact with the waste
  (liquid-mounted seal). A liquid: .:
 mounted seal means a foam- or liquid-,  .
 filled seal mounted in contact witii the
 waste between the wall of the tank and
 the'ifloating roof-continuously around
 theicircumference of the tank.
   (13) Two seals mounted one above the
 other so that.each forms a continuous
 closure that completely covers the space
 betiveen the wall of the tank and the
 edge of the internal floating roof. The '
'lowler seal may be vapor-mounted, but
 both shall be continuous.'
   (C] A mechanical shoe seal. A _ "     '
 mechanical shoe sealis a metal sheet
 held vertically against the wall of the
 tank by springs or weighted levers and
 is ciannected by braces to the floating
: rpoi:. A flexible coated fabric (envelope)
spaiis the annular space between the
metal sheet and the floating roof.
   (iii) Each opening in a noncontact
internal floating roof except for
automatic bleeder yents (vacuum
breaiker vents) and the rim space vents
is tci provide a projection below the
waste surface.          ,
   (iy) Each opening in the internal
floating roof except for leg sleeves;
autcimatic bleeder vents, rim space
ven1:s, column wells, ladder wells,
•sample wells, and stub drains is to be  •
equipped with a cover or fid which is
to be maintained in a closed position at
all times, (i.e., no visible gap) except   ;
when the device is in actual use. The
cover or lid shall be equipped with a
gasket. Covers on each access hatch and
automatic gauge float well shall be
bolted except when they are in use.
  (y) Automatic bleeder vents shall be "
equipped with .a gasket and are to be
closed at all times when the roof is
floating except when-the roof is being
floated off or is being landed on the ropf •
leg supports.

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 62950   Federal Register 7 Vol. 59, No. 233 / Tuesday, December 6, 1994 / Rules and Regulations
   (vi) Rim space vents shall be    ,,
 equipped with a gasket and "are to be set
 to open only when the internal-floating ,
 roof is riot floating oral the.     '    .,
 manufacturer's recommendedsetting.
 '  (vii).Each penetration of the internal
 floating roof for the purpose of sampling
 shall be a sample well. The sample well
 shall have a slit fabric cover that covers
 at least 90 percent ofthe opening.
   (viii) Each, penetration of the internal
 floating roof that allows for passage of
 a column supporting the fixed roof shall
 ha ve a flexible fabric sleeve seal or a  ^ ,
 gasketed sliding cover.
   (ix) Each penetration of the internal -
 floating roof that allows for passage of
 a ladder shall have a gasketed sliding
^coyer.          ,  •
   (2) The owner or operator electing to
 comply with §265.1085(b)(3) of this
 subpart shall design, install, operate,
 and maintain an external floating roof
 that meets the following requirements:
   (i) Each external floating roof shall be
 equipped with a closure device between
 the wall of the tank and the roof edge.  •
 The closure device is to consist of two
 seals, one above the other. The lower  ;
 seal is referred to as the primary seal,,
 and the "upper seal is referred to as the
 secondary seal.
   , (A) The primary seal shall be either a
 mechanical, shoe seal or a liquid-
 mounted seal. Except as provided in
 paragraph (b)(2)(iv) of this section, the
 seal shall completely cover the annulai>
 space between, the edge of the floating
 roof and tank wall.
   (B) The secondary seal shall
 completely cover the annular space
 between the external floating roof arid
 the wall of the tank in a continuous
 fashion except as allowed in paragraph
 (b)(2)(iv) of this section.
   (ii) Except for automatic bleeder vents
 and rim space vents, each opening in a
 noncontact external floating roof shall
 provide a projection below the waste
 surface. Except for automatic bleeder   .
 vents, rim space vents, roof drains, and
 leg sleeves, each opening in the roof is
  seal, or lid that is to be maintained in
  a closed position at all times (i.e., no
  visible gap) except when the device is
  in actual use. Automatic bleeder vents
  are to be closed at all times when the
  roof is floating except \vhen the roof is
  being floated off or is being landed on
  the roof leg supports. Rim vents are to
  be set to open when the roof is being
  floated off the roof leg supports or atthe
  manufacturer's recommended setting.
  Automatic bleeder vents and rim space
  vents are to be gasketed. Each
  emergency roof drain is to be provided
  with a slotted membrane fabric cover
 that covers at least 90 percent of the area
 of the opening.  .       .  •      •'••'-'
   (iii) The roof shall be floating on the
 waste at all times (i.e., off the roof leg  f-
 supports) except duringnnitial fill until
 the roof is lifted off leg supports and
 when the tank is completely emptied
. and subsequently.refilled. The process  •
 of filling, emptying; or refilling when ,
 the roof is resting on the leg supports
 shall be continuous and shall be
 accomplished as rapidly as possible.  '••
   (3) The owner or operator may elect  -.
 to comply with §265.1085(b)(2) or (b)(3)
 of this subpart using an alternative
 means of emission limitation for which
 a Federal Register notice has-been
 published in accordance with the  .
 requirements of 40 CFR60.114b
 permitting its use as an alternative
 means for the purpose of compliance •
 with 40 CFR 60.112b.             -
   (b) Monitoring and inspection of the
 control equipment described in '
 paragraph (a) of this section shall be
 .conducted as follows:            .  ..
   (1) After installation, owners and
 operators of internal floating roofs shall:
   (i) Visually inspect the internal
 floating -roof,'the primary seal, and the,
 secondary seal (if one is in service),  .
 prior to filling die tank with waste. If
 there are holes, tears, or other openings
 in the primary seal, the secondary seal, •,
 or the seal fabric, or defects in the
 internal floating roof, or both, the owner
 or operator shall repair the items before
 filling the tank.
   (ii) For tanks equipped with a liquid-
 mounted or mechanical shoe primary
 seal, visually inspect the internal
 floating roof and the primary seal or the
 secondary seal (if one is in service)
 through manholes and roof hatches on
 the fixed roof at least once every 12
 months after initial fill. If the internal
 floating roof is not resting on the surface
 of the waste inside the tank, or there is
 liquid accumulated on the roof, or the
 seal is detached, or there are holes or
 tears in the seal fabric, the owner or '.
 operator shall repair the items or empty
 and remove the tank from service within
 45 days. If a failure that is detected
 during inspections required in this
 paragraph cannot be repaired within 45
 days andjf the tank cannot be emptied  .
 within 45"days, a 30-day extension may
 be requested from the Regional
 Administrator. Such a request for an
 extension shall document that alternate
  capacity is unavailable and specify a
  schedule of actions the owner or
  operator will take that will assure that •
  the control equipment will be repaired
  or the tank will be emptied as soon as
 .possible.      •  ,           .        :- '
  : (iii) For tanks equipped with a
double-seal system as specified in
paragraph (a)(lMi)(B) of this section:
  (A) Visually inspect die tank as
specified in paragraph (b)(l)(iv) of this
section at least every 5 years; or
  (5) Visually inspect the tank as
specified in paragraph (b)(l)(ii) of this
section.             .              •
  (iv) Visually inspect the internal
.floating roof, the primary seal, the
. secondary seal (if one is in service), •
gaskets, slotted membranes, and sleeve
seals (if any) each time the tank is
emptied and degassed. If the internal •
floating roof has defects; me primary
seal has holes, tears, or other openings
in the seal or the seal fabric; or the-
secondary seal has holes, tears, or other
openings in the seal-or the seal fabric;-
or the gaskets  no longer close off the
waste surfaces from the atmosphere; or.
the slotted membrane has more than 10
percent open area, the owner or operator
shall repair the items as necessary so
• that none of the conditions-specified in
•this paragraph exist before refilling the
tank with waste. In no event shall
-inspections conducted in. accordance
 with' this provision occur at intervals
 greater than 10 years in the Case of tanks
 conducting the annual visual inspection
 as specified in paragraph (b)(l)(ii) of
 this section, and at intervals no greater
 than 5 years in die case, of tanks
 specified in paragraph (b)(l)(iii) of this
 section.                    .
   (v) Notify the.Regional Administrator
 in writing at least 30 days prior to the
 filling or refilling of each tank for which
 an inspection is required by paragraphs
 :(b)(l)(i)  and (b)(l)(iv) of this section to
 afford the Regional Administrator the
 opportunity to have an observer present.
 If the inspection required by paragraph
 (b)(l)(iv) of this section is not planned
 and the owner or operator could not .
 have known about the inspection 30
 days in  advance of refilling the tank, the
 owner or operator shall notify the
 Regional Administrator at least 7 days
 prior to the refilling of the tank.
- Notification shall be made by telephone'
 immediately  followed by written
  documentation demonstrating why the.
 inspection was unplanned.   .
 Alternatively, this notification,
  including the written documentation;
  may be made in writing and sent by
  express mail  so that it is received by the
  Regional Administrator at least 7 days  .
  prior to the refilling.       ' '
    (2) After installation, the owner or   •'
  operator of an external floating roof
  shall:
    (i) Determine the gap areas and
 .maximum gap widths between the
  primary seal and the wall of the tank
  and between the secondary seal and the

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            Federal Register / Vol. 59, No.  233 / -Tuesday, December 6, 1994 I Rules and Regulations   62951
 , .wallofflietankaccordingtpthB
   following frequency:'.;•."-••  >  :.  .      .
    ,(A) Measurements of gaps between
:   feedtank wall 'and the primary sea! (seal
   gaps) sjiall be performed during the
   hydrostatictesting of fee tankor within
•,;  60 days of the initial fill with wasteand
 . •_. at least once every 5 years thereafter.
     (B) Measurements of gaps between the
   tank wall and the secondary seal shall
   be performed within 60 days of the
   initial fill with waste and at least once
   per year hereafter, :•/•
    (C) If any tank ceases to hold waste for
   a period of 1 year or more, subsequent
  -introduction of waste into the  tank shall
   be considered an initial fill for the  "*
   purposes of paragraphs (b)(2)(i)(A) and
   (b){2)(i}(B31 of this section,
    (ii) Determine the gap widths and
  areas in the primary and secondary seals
  individually by the following
  procedures:- ;.    . "  , ._-
    (A) Measureseal;gaps,,if any, at one
  or more floating roof levels when the
  Toof is floating off the roof leg supports.
    (B) Measure seal gaps around the
  entire circumference of the tank in each
  place where a 0.32-cm diameter uniform
  probe passes freely (without forcing or
  binding against the seal) between the
  seal and fee wall of the tank and
 .measure the circumferential distance of
  each sujch location.       -;  -    -.  ,
    (C) Determine fee total surface area of
  each gap described in paragraph
, (b)(2)(ii)(B) of this section by using
  probes of various widths to measure
 -accurately.theactualdistance.from the "••
• - tank wall to the seal and multiplying
 .•each.such.width!byits respective
  circumferential distance.           . ^
    (iii) Add the gap surface area of each  .
 gap locatioirfor fee primary seal and the
 secondary .seal individually and divide:
 the sum for each seal by the nominal
 diameter of the tank and compare each
 ratio to fee-respective standards in
 paragraph (b)(2)(iv) of this section.
    (iv) Make necessary repairs or empty
 the tank within 45 days of identification
 in any inspection'for seals not meeting
 the following requirements:  . -
    (A) The accumulated area of gaps
 between the tank wall and the
 .mechanical shoe or liquid-mounted .
 primaryjseal shall not exceed 212 em2
 per meter of tank diameter, and the
 width of any,,portionx)f anygapshall   ,-
 notexceed13.81 cm,  .     .
   .(i) One end,of the mechanical shoeis
 to extend, into the waste contained in
 the tank, and the other end is to extend
 a mininijUm vertical distance of 61 cm
 ±above the waste surface. - .        ,  .
  ' (2) There axe to be no holes, tears, or
 other.openings in the shoe, seal fabric,
 orseSlenvelope.•    .-•          .•  . .
    (B) The secondary seal is to meet the
 ^following requirements:
    (2) The secondary seal is to be
  installed above the primary seal so that
  it completely covers the space between
  the roof edge and the tank wall except
 - as provided in paragraph (b)(2)(ii)(C) of.
  this section.   "           "
    (2) The accumulated area of gaps
  between the tank wall and the
  secondary seal shall mot exceed 21.2
  cm2 per meter of tank diameter, and .the
  width of any portion of any gap shall
  not exceed i.2.7 cm. ,,'."•":""
    (3) There are to be no holes, tears, or
  other openings in the seal or seal fabric..
    (v) If a failure that is detected during
 •inspections required in paragraph   "  ••
  (b)(2)(i) of this section cannot be
  repaired.wifein 45 days and if the tank
  cannot be emptied within 45 days, a 30-
  day extension may be requested from
  the Regional Administrator. Such
  extension request shall include a
  demonstration of the unavailability of
 alternate capacity and a specification of
 a schedule that will assure that .the
 control equipment will be repaired or '
 the tank wilibe emptied as soon as
 possible.   ,           •
   (vi) Notify the Regional Administrator
 - 30 daysrin advance of any gap .
 measurements required by paragraph
 (b)(2)(i) of this section to afford the   :N.
 Regional Administrator the opportunity
 :-to have an observer present.
   '(vii) Visually inspect fee external -    :
 floating roof, the primary.seal,,
 secondary«eal,^and.fittings each time
 the vessel is emptied and degassed.
   -(A) If the external floating.ioof,has   '
 -defects, .fee-primary seal has .holes,  ;;
 -tears, :or other ppenings.in the seal or -
 the seal fabric, or the secondary«eal has
 holes, tears, or other.openings in the
 seal or the seal fabric, the owner or
 operator shall repau- the items as
 necessary so that none of the conditions
 specified in this paragraph exist before
 fillhig or refilung the tank with waste.
   (B).For all the inspections required by
 paragraph (b)(2)(vii) of this section, the
 owner or operator shall notify the
 Regional Administrator in writing at
 least 30 days prior to the filling or, ''
 refilling of each tank to afford the
 Regional Administrator the opportunity
 to inspect the tank priorto refillingT If
. the -inspection requiredby paragraph
 ib)(2)(vii) of this section is not planned
 and the owneror operator-could not
 have known about the' inspection 30
 days in advance of refilung the tariki the
 owner or operator shall notify,the
 Regional Administrator at least 7 days
 prior to the refiUing of the tank.
 Notification shall be made by telephone
 immediately followed by written     '
 documentation demonstrating why the ,'
•  inspection was unplanned.     :
  Alternatively, this notification,
  including the written .documentation,
  may be made in writing and sent by
  express mail so that it is received by the
  Regional Administrator at least 7-days
  prior to the refilling.
    Cp) Owners and operators who elect to
  insjtall and operate the control
  equipment in paragraph (a) of this
  section shallinclude the following
  information in the operating record in'
  accordance with the requirements of
  § 2!55.1090{aKD and (a)(ll) of this
  suhipart:    -    •'•'•'
    (i) Internal floating roof.
    (i) Documentation that describes'the
  coultrol equipment design and certifies
  that the control equipment meets the
  specifications of paragraphs (a)(l) and
  (b)(^) of this section.
   .(ii) Records of each inspection
  performed as required by paragraphs
  (b)(l)(i) through (b)(l)(iv) of this section.
•  Each .record shall identify the tank on
  whilch the inspection was performed   .',.
  and shall contain the date the tank was
  inspected and the observed condition of.
  each component of the control
  equipment (seals, internal floating roof,
  and fittings).
   (iii) If any of the conditions described
  in piaragraph (b)(l)(ii) of this section are '
  detected during the nninral visual
  inspection required by paragraph
  (b)(i)(ii) of this section, the records shall ,
-  identify the tank, the nature of the
  defects, and the date the tank was
-emptied or ffie nature of and date the'
'repair was made.'  "~
-  
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 62952  Federal 'Register =7 Vol. 59, No. 233 /Tuesday, December 6, 1994 /Rules and Regulations
 exceeding the limitations specified by
 paragraph (b)(2)(iy) of this section that
 identifies the Jfcnk, the date the tank" was
• empUed OP the repairs m'aderand the
 nature of the repair.  •

 PART 270—EPA ADMINISTERED
 PERMIT PROGRAMS:THE
 HAZARDOUS WASTE MANAGEMENT
 PROGRAM

   33. The authority citation for part 270
 continues to read as follows:
   Authority: 42 U.S.C. 6905,6912,6925,
 6927,6939. and 6974.  ,

 Subpart A—General  Information

   34. Sectiort 270.4 is amended by
 revising paragraphs (a){2),'and (a}(3) and
 by adding paragraph  (a)(4) to read as  •
 follows:   •

 |270.4 Effect ola permit
   (a) * * *     ,
   (2) Are-promulgated under part 268 of
 this chapter restricting the placement of
 hazardous wastes in or on the land;
   (3) Are promulgated under part 264 of
 this chapter regarding leak detection ~
 systems for new and  replacement
 surface impoundment, waste pile, and  •
 landfill units, and lateral expansions of.
 surface impoundment, waste pile, and  •
 landfill units. The leak detection system
 requirements include double liners,
 CQA programs, monitoring, action
 leakage rates, and response action plans,
 and will be implemented through the"  •
 procedures of § 270.42 Class 1 permit
 modifications; or
    (4) Are promulgated under subparts
  AA, BB, or CC of part 265 of this chapter
  limiting air emissions.   -
  *****

  Subpart B—Permit Application

    35. Section 270.14 is amended by
  revising paragraph (b)(5) to read as
  follows:
  §270.14  Contents of Part B: General
  requirements.
  *    *    *    *    *     ;
    (b) * * *
    (5) A copy of the general inspection
  schedule required by § 264.15(b).
  Include where applicable, as part of the
  inspection schedule, specific -
  requirements in §§264.174,245.-193C9,.
  264.195, 264.226. 264.254, 264.273,
  264.303, 264.602, 264.1033, 264.1052,
 264.1053, 264.1058, 264.1088, and
,264.1091.
 *•    *    , *   . *    •*      ,    '    .  •.
   36. Section 270.15 is amended by
 adding paragraph (e) to read as follows:

• § 270.15  Specific Part B information   .
 requirements for containers. .
 *    *    *    *    *
   (e) Information-on air emission
 control.equipment as required in
 §270.27,      ;    . .  ' ~ ••'/• '-  •    •
,  ., 37. Section 270.16 is amended by
 adding paragraph (k) to-read as follows:.'

 §270.16  Specific Part B information
 requirements for tank systems.
•*    *   *    *    *         .    ' •
   (k) Information on air emission
 control equipment a§ required in
 §270.27. ''•'.••••.'
   38. Section 270.17 is amended.by
 adding paragraph (j) to read as follows:

 §270.17  Specific Part B information
 requirements for surface Impoundments.
 •* _  *    *     *   •*,-.-'
   '(j) Information on air emission control
  equipment as required in § 270.27.
   39. Part 270 subpart B is amended by
  adding § 270.2? to read as follows:

  §270.27  Specific Part B information
  requirements for air emission controls for
  tanks, surface Impoundments, and
 • containers. -                      '.'  -
   (a)"Except as otherwise provided in.
  § 264.1 of this chapter, owners and
  operators of tanks, surface
 , impoundments, or containers that use
  air emission controls in accordance with
, the requirements of 40 CFR part 264,
  subpart CC shall provide the.following
  additional information:
   (1) Documentation for each, cover
  installed on a tank subject to
  § 264.1084(b)(2) or § 264.1084(b)(3) of
 • this chapter thatinchides information
  prepared by the owner or operator or
 •providedby the'cover manufacturer or
  vendor describing the cover design, and
  certification by the owner or operator
  that the cover meets the applicable
  design specifications as listed in
  §265.1091(c) of this chapter.
    (2) Identification of each container
  area subject to the requirements of 40
  CFR part 264, subpart CC and
  -certification bythe-owner or operator
 - that the requirements of this subpart are
  met.
    (3) Documentation for each enclosure
  used to control air emissions from,
  containers in accordance with the
requirements of § 264.1086(b)(2)(i) of ,  -
this chapter that includes information
prepared by the..owner or operator or
provided by the manufacturer or vendor -
describing -the enclosure design, and
certification by the owner or operator
that the enclosure meets the
specifications listed in   •       -
§265.1087(b){2)(ii) of this chapter.,    ;
   (4) Documentation for each floating
membrane cover installed on a surface
impoundment in accordance with the
requirements of § 264.1085(c) of this   '•'•.
chapter that includes information    '
prepared by the owner or operator or
provided by the cover manufacturer,or
vendor describing the cover ^design, and.
 certification by the owner or operator
that the cover meets the specifications
; listed in § 265.1086(e) otthis chapter;'
'"'•  (5) Documentation for each closed-
 vent system and control device installed
 in accordance with the requirements of ,
 § 264.1087 of this chapter that includes
 design and performance information as .
 specified in § 270.24 (c) and (d).    ?-
   (6) An emission monitoring plan for
 both Method 21 and Control device     ;
 monitoring methods. This plan shall
 include the following information:
 monitoring point(s), monitoring
 methods for. control devices, monitoring
• frequency, procedures for  documenting
 exceedances, and procedures for
 mitigating noncompliances.
   (7) When-an owner or operator of a
 facility subject to 40 CFR part 265,
 subpart CC cannot comply with 40  CFR
 part 264, subpart'GC by the date of
 permit issuance, the schedule of;    "    .
 implementation required under
 §265.1082 of this chapter. .."'

 PART 271—REQUIREMENTS FOR
 AUTHORIZATION OF STATE
 HAZARDOUS WASTE PROGRAMS

    40. The authority citation for part 271
 continues to read as follows:
   Authority: 42 U.S.C. 6905, 6912(a), and
 6926.,  '  ,

 Subpart A—Requirements for Final
 Authorization

    41. Section 271.1(j) is amended by
 adding the following entry to Table 1 in
  chronological order by date of
  publication:              '   •

  §271.1  Purpose and scope.   .
    (j)
             TABLE 1—REGULATIONS IMPLEMENTING THE HAZARDOUS AND SOLID WASTE AMENDMENTS OF 1984
         Promulgation date
Title of regulation
                                                               Federal Register reference
                                                                                               Effective date

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         -  Federal .Register •! Vol. 59,\No.^233  / .Tuesday,-December 6,:.1994 / Jules and Regulations   62953
      TABLE I—REGUI=ATIONS IMPLEMENTING THE HAZARDOUS AND SOLID. WASTE AMENDMENTS OF 1984—Continued
        "Promulgation date
      •Title of regulation
                                                               Federal Register reference
    .  Effective date
 {insert date of publication  in the Air  ; Emission   Standards   for  [Insert Federal Register reference
 ' ! .Federal Register].     "          Tanks, Surface Impoundments,   to final rule].
  -••-••    :''••'    •'•:  • -..'•' : '•'.•  and Containers.      . -: •'.;'.          '         '   •
                                                          Tjnsert date 180 days after date of
                                                            publication in the Federal Reg-
                                                            ister]. '
 *   .*   ! *    *    *   -',-..     .chronological order by date !of
•V 42. Section 271.l(j) is amended by      publication: •     - '• •"'•   '
 adding th^ following entry to Table 2 in
                                                                               §271.1
                                                        Purpose and scope.
                                                       .'.•.*'.'*   .-'*',.
                                                       * *     •_      ,   ''
     '•'  TABLED—SELF-IMPLEMENTING PROVISIONS "OF THE HAZARDOUS AND SOLID WASTE AMENDMENTS OF 1984
          Effective date
   Selfr-implementing provision
                                                                    RCRA citation
FEDERAL REGISTER reference
 .JuneS. 1995
Air   Emission  Standards  for  3004(n)
  Tanks, Surface Impoundments,
,  and Containers.
                                                                                         '{Insert Federal Register reference
                                                                                           to final rule]       •
 {ER Doc. 9f-29693 Filed 12-5-94; 8:45 am]

' BILLING.'COD|S 8S60-50-P .

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