[Federal Register Volume 86, Number 33 (Monday, February 22, 2021)]
[Notices]
[Pages 10567-10581]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-03489]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-10017-01-OECA ]


Applicability Determination Index Data System Posting: EPA Formal 
Responses to Inquiries Concerning Compliance With the Clean Air Act 
Stationary Source Program

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of availability.

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SUMMARY: This notice announces the availability of applicability 
determinations, alternative monitoring decisions, and regulatory 
interpretations made by EPA with regard to the New Source Performance 
Standards (NSPS); the National Emission Standards for Hazardous Air 
Pollutants (NESHAP); the Emission Guidelines and Federal Plan 
Requirements for existing sources; and/or the Stratospheric Ozone 
Protection Program.

FOR FURTHER INFORMATION CONTACT: An electronic copy of each complete 
document posted on the Applicability Determination Index (ADI) data 
system is available on the internet through the Resources and Guidance 
Documents for Compliance Assistance page of the Clean Air Act 
Compliance Monitoring Website under ``Air'' at: https://www.epa.gov/compliance/resources-and-guidance-documents-compliance-assistance. The 
letters and memoranda on the ADI may be located by author, date, office 
of issuance, subpart, citation, control number, or by string word 
searches. For questions about the ADI or this notice, contact Maria 
Malave, Monitoring, Assistance and Media Programs Division by phone at: 
(202) 564-7027, or by email at: malave.maria@epa.gov. For technical 
questions about individual applicability determinations, monitoring 
decisions, or regulatory interpretations, refer to the contact person 
identified in each individual document, or in the absence of a contact 
person, refer to the author of the document.

SUPPLEMENTARY INFORMATION:

Background

    The General Provisions of the NSPS in 40 Code of Federal 
Regulations (CFR) part 60 and the General Provisions of the NESHAP in 
40 CFR part 61 provide that a source owner or operator may request a 
determination of whether certain intended actions constitute the 
commencement of construction, reconstruction, or modification. 40 CFR 
60.5 and 61.06. The General Provisions in part 60 also apply to Federal 
and EPA-approved state plans for existing sources in 40 CFR part 62. 
See 40 CFR 62.02(b)(2). The EPA's written responses to source or 
facility-specific inquiries on provisions in parts 60, 61 and 62 are 
commonly referred to as applicability determinations. Although the 
NESHAP part 63 regulations [which include Maximum Achievable Control 
Technology (MACT) standards and/or Generally Available Control 
Technology (GACT) standards] contain no specific regulatory provision 
providing that sources may request applicability determinations, the 
EPA also responds to written inquiries regarding applicability for the 
part 63 regulations. In addition, the General Provisions in part 60 and 
63 allow sources to seek permission to use monitoring or recordkeeping 
that is different from the promulgated requirements. See 40 CFR 
60.13(i), 61.14(g), 63.8(b)(1), 63.8(f), and 63.10(f). The EPA's 
written responses to these inquiries are commonly referred to as 
alternative monitoring decisions. Furthermore, the EPA responds to 
written inquiries about the broad range of regulatory requirements in 
40 CFR parts 60 through 63 as they pertain to a whole source category. 
These inquiries may pertain, for example, to the type of sources to 
which the regulation applies, or to the testing, monitoring, 
recordkeeping, or reporting requirements contained in the regulation. 
The EPA's written responses to these inquiries are commonly referred to 
as regulatory interpretations.
    The EPA currently compiles EPA-issued NSPS and NESHAP applicability 
determinations, alternative monitoring decisions, and regulatory 
interpretations, and posts them to the ADI on a regular basis. In 
addition, the ADI contains EPA-issued responses to requests pursuant to 
the stratospheric

[[Page 10568]]

ozone regulations contained in 40 CFR part 82. The ADI is a data system 
accessed via the internet, with over three thousand EPA letters and 
memoranda pertaining to the applicability, monitoring, recordkeeping, 
and reporting requirements of the NSPS, NESHAP, emission guidelines and 
Federal Plans for existing sources, and stratospheric ozone 
regulations. Users can search for letters and memoranda by author, 
date, office of issuance, subpart, citation, control number, or by 
string word searches.
    Today's notice comprises a summary of 59 such documents added to 
the ADI on October 22, 2020. This notice lists the subject and header 
of each letter and memorandum, as well as a brief abstract of the 
content. Complete copies of these documents may be obtained from the 
ADI on the internet through the Resources and Guidance Documents for 
Compliance Assistance page of the Clean Air Act Compliance Monitoring 
website under ``Air'' at: https://www.epa.gov/compliance/resources-and-guidance-documents-compliance-assistance.

Summary of Headers and Abstracts

    The following table identifies the database control number for each 
document posted on October 22, 2020 to the ADI data system; the 
applicable category; the section(s) and/or subpart(s) of 40 CFR part 
60, 61, 62, 63 and 82 (as applicable) addressed in the document; and 
the title of the document, which provides a brief description of the 
subject matter.
    Also included in this notice, is an abstract of each document 
identified with its control number. These abstracts are being provided 
to the public as possible items of interest and are not intended as 
substitutes for the contents of the original documents. This notice 
does not change the status of any document with respect to whether it 
is ``of nationwide scope or effect'' for purposes of CAA section 
307(b)(1). For example, this notice does not convert an applicability 
determination for a particular source into a nationwide rule. Neither 
does it purport to make a previously non-binding document binding.

  Applicability Determinations, Alternative Monitoring Plans and Regulatory Interpretations Uploaded to ADI on
                                                October 22, 2020
----------------------------------------------------------------------------------------------------------------
           Control No.                  Categories             Subparts                      Title
----------------------------------------------------------------------------------------------------------------
1900024..........................  NSPS................  OOOOa..............  Applicability Determination for
                                                                               Mainline Valve at a Compressor
                                                                               Station.
1900025..........................  NSPS, NESHAP........  LLL, KKK, OOOO HH..  Applicability Determination for
                                                                               Sweetening Units Installed on a
                                                                               Natural Gas Processing Plant.
1900026..........................  NSPS................  Ja.................  Alternative Monitoring Plan for
                                                                               Span Gas Concentration for Total
                                                                               Reduced Sulfur Continuous
                                                                               Emissions Monitoring System for
                                                                               Flares at Petroleum Refineries.
1900027..........................  NSPS................  J, Ja..............  Alternative Monitoring Plan and
                                                                               Performance Test Waiver for
                                                                               Hydrogen Sulfide Monitoring of
                                                                               Tank Degassing Operations
                                                                               Controlled by Portable Fuel Gas
                                                                               Combustion Devices at Petroleum
                                                                               Refineries.
1900028..........................  NESHAP, NSPS........  J, Ja, UUU.........  Modification of Operating
                                                                               Parameter Limits in Alternative
                                                                               Monitoring Plan for a Wet Gas
                                                                               Scrubber installed on Fluidized
                                                                               Catalytic Cracking Units at a
                                                                               Refinery.
1900030..........................  NSPS................  J..................  Waiver Request of the Frequency
                                                                               Particulate Matter Testing for
                                                                               Fluidized Catalytic Cracking Unit
                                                                               at a Refinery.
1900031..........................  NESHAP, NSPS........  J, Ja, UUU.........  Modification of Alternative
                                                                               Monitoring Plan to Allow
                                                                               Parametric Monitoring In lieu of
                                                                               Continuous Opacity Monitoring of
                                                                               a Wet Gas Scrubber Installed on a
                                                                               Fluidized Catalytic Cracking Unit
                                                                               at a Refinery.
1900032..........................  NSPS................  J..................  Alternative Monitoring Plan for
                                                                               Delayed Coking Unit Installed on
                                                                               Disulfide Oil Oxidation Tower at
                                                                               a Refinery.
1900033..........................  NESHAP, NSPS........  J, UUU.............  Modification of Alternative
                                                                               Monitoring Plan to Allow
                                                                               Parametric Monitoring In lieu of
                                                                               Continuous Opacity Monitoring of
                                                                               a Wet Gas Scrubber Installed on a
                                                                               Fluidized Catalytic Cracking Unit
                                                                               at a Refinery.
1900034..........................  NSPS................  XXX................  Applicability Determination for
                                                                               Expansion of a Landfill.
1900035..........................  NSPS................  J, Ja..............  Alternative Monitoring Plan for
                                                                               Hydrogen Sulfide Monitoring of
                                                                               Storage Tank, Process Unit
                                                                               Vessel, and Piping Degassing
                                                                               Operations Controlled by Portable
                                                                               Fuel Gas Combustion Devices at
                                                                               Petroleum Refineries.
1900036..........................  NSPS................  Db.................  Alternative Monitoring Plan to
                                                                               Allow Predictive Emissions
                                                                               Monitoring In lieu of Continuous
                                                                               Emission Monitoring of NOX
                                                                               Emissions from a Boiler at a
                                                                               Packaging Facility.
1900037..........................  NSPS................  Db.................  Extension Due to Force Majeure
                                                                               Events of Initial Performance
                                                                               Test of NOX Emissions from a
                                                                               Boiler at a Mining Company.
1900038..........................  NSPS................  Ja.................  Alternative Monitoring Plan for
                                                                               Span Gas Range for NOX Continuous
                                                                               Emissions Monitoring System for
                                                                               Heaters at a Petroleum Refinery.
1900039..........................  NSPS................  UUU................  Alternative Monitoring Plan for
                                                                               Wet Scrubbers on Fluidized Bed
                                                                               Dryers at Non-metallic Mineral
                                                                               Processing Facilities.
2000001..........................  NSPS................  OOO................  Regulatory Interpretation for
                                                                               Vibratory Feeders at a Limestone
                                                                               Quarry.
2000003..........................  NSPS................  EEEE...............  Applicability Determination for
                                                                               Rural Institutional Waste
                                                                               Incinerators.
2000004..........................  NESHAP, NSPS........  Db, DDDDD..........  Alternative Monitoring Plan for
                                                                               Biomass Boiler at Kraft Pulp
                                                                               Mill.
2000005..........................  NSPS................  A, J, Ja...........  Alternative Monitoring Plan and
                                                                               Performance Testing Waiver for
                                                                               Hydrogen Sulfide Monitoring of
                                                                               Tank Degassing Operations
                                                                               Controlled by Portable Fuel Gas
                                                                               Combustion Devices at Petroleum
                                                                               Refineries.
2000007..........................  NESHAP, NSPS........  Db, DDDDD..........  Alternative Monitoring Plan for
                                                                               Wood-Residue Fueled Boilers at a
                                                                               Paperboard Mill.
2000013..........................  NSPS................  A..................  Regulatory Interpretation of the
                                                                               use of Part 60, Appendix F-
                                                                               Quality Assurance Procedures.
FP00008..........................  Federal Plan........  LLL................  Modification to Alternative
                                                                               Monitoring Plan for Fluidized Bed
                                                                               Sewage Sludge Incinerator at a
                                                                               Wastewater Treatment Plant.

[[Page 10569]]

 
FP00009..........................  Federal Plan........  LLL................  Alternative Monitoring Plan for
                                                                               Fluidized Bed Sewage Sludge
                                                                               Incinerator at a Wastewater
                                                                               Treatment Plant.
FP00010..........................  Federal Plan........  LLL................  Alternative Monitoring Plan for
                                                                               Fluidized Bed Sewage Sludge
                                                                               Incinerator at a Wastewater
                                                                               Treatment Plant.
FP00011..........................  Federal Plan........  LLL................  Alternative Monitoring Plan for
                                                                               Fluidized Bed Sewage Sludge
                                                                               Incinerator Installed at a
                                                                               Wastewater Treatment Plant.
FP00012..........................  Federal Plan........  LLL................  Alternative Monitoring Plan for
                                                                               Multiple Hearth Sewage Sludge
                                                                               Incinerators Installed at a
                                                                               Wastewater Treatment Plant.
FP00013..........................  Federal Plan........  LLL................  Alternative Monitoring Plan for
                                                                               Multiple Hearth Sewage Sludge
                                                                               Incinerator Installed at a
                                                                               Wastewater Treatment Plant.
M190004..........................  NESHAP, NSPS........  F, LLL.............  Alternative Monitoring Plan for
                                                                               Parametrically Monitoring Sulfur
                                                                               Dioxide Emissions at a Portland
                                                                               Cement Plant.
M190005..........................  NESHAP..............  S..................  Modification of Alternative
                                                                               Monitoring Plan for Steam
                                                                               Stripper Installed on a Kraft
                                                                               Pulp Mill.
M190006..........................  NESHAP..............  DDDDD..............  Alternative Monitoring Plan for
                                                                               Combination Boilers at a
                                                                               Packaging Manufacturing Facility.
M190007..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190008..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190009..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190010..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190011..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190012..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M190013..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at Kraft
                                                                               Pulp Mill.
M190014..........................  NESHAP..............  GGG................  Alternative Monitoring Plan for
                                                                               Verifying Flow to Control System
                                                                               Installed on Batch-Operated
                                                                               Pharmaceuticals Manufacturing
                                                                               Facility.
M190015..........................  NESHAP, NSPS........  BB, MM.............  Alternative Monitoring Plan for
                                                                               Dynamic Scrubber Installed on
                                                                               Smelt Dissolving Tanks at Kraft
                                                                               Pulp Mill.
M190016..........................  NESHAP, NSPS........  BB, MM.............  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at Kraft
                                                                               Pulp Mill.
M190017..........................  NESHAP..............  CC.................  Alternative Monitoring Plan for a
                                                                               Cascading Flare System Installed
                                                                               at a Petroleum Refinery.
M190018..........................  NESHAP..............  JJJJJJ.............  Performance Test Waiver for Carbon
                                                                               Monoxide for Boilers.
M190019..........................  NESHAP..............  FFFF, HHHHH........  Applicability Determination for
                                                                               Separation Activity at a Coatings
                                                                               Manufacturing Facility.
M190020..........................  NESHAP..............  EEE................  Approval of Minor Test Method
                                                                               Modifications for Hazardous Waste
                                                                               Incinerators.
M190021..........................  NESHAP..............  RRR................  Alternative Monitoring Plan for
                                                                               Intermittent Lime Addition to
                                                                               Baghouse Installed on Aluminum
                                                                               Melting Furnaces at a Secondary
                                                                               Aluminum Production Facility.
M200001..........................  NESHAP..............  CCC................  Alternative Monitoring Plan for
                                                                               Wet Scrubber Installed on a Steel
                                                                               Pickle Line at a Steel Pickling
                                                                               Facility.
M200002..........................  NESHAP, NSPS........  BB, BBa, MM........  Alternative Monitoring Plan for
                                                                               Electrostatic Precipitator and
                                                                               Wet Scrubber Installed on a Lime
                                                                               Kiln at a Kraft Pulp Mill.
M200003..........................  NESHAP..............  G, S...............  Alternative Monitoring Plan for
                                                                               Equipment that is Unsafe or
                                                                               Difficult to Monitor at a Pulp
                                                                               and Paper Mill.
M200004..........................  NESHAP..............  UUUUU..............  Applicability Determination for
                                                                               Electric Utility Steam Generating
                                                                               Units.
M200005..........................  NESHAP..............  VVVVVV, CCCCCCC....  Applicability Determination for a
                                                                               Lithium Ion Battery Manufacturing
                                                                               Facility.
M200006..........................  NESHAP..............  DDDDD..............  Alternative Monitoring Plan for
                                                                               Chlorine and Mercury Monitoring
                                                                               for Combination Boiler Installed
                                                                               at a Pulp and Paper Mill.
M200007..........................  NESHAP..............  RRR................  Applicability Determination for
                                                                               Thermal Chip Dryer Installed at a
                                                                               Secondary Aluminum Production
                                                                               Facility.
M200008..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M200009..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
M200015..........................  MACT................  CC.................  Regulatory Interpretation of
                                                                               Petroleum Refinery Regulations
                                                                               for Flaring Events.
Z190001..........................  NESHAP..............  ZZZZ...............  Alternative Monitoring Plan for
                                                                               Stationary Reciprocating Internal
                                                                               Combustion Engines Installed at
                                                                               Natural Gas Compressor Stations.
Z200002..........................  NESHAP..............  MM.................  Alternative Monitoring Plan for
                                                                               Dynamic Scrubbers Installed on
                                                                               Smelt Dissolving Tanks at a Kraft
                                                                               Pulp Mill.
Z200003..........................  NESHAP..............  LLLLL..............  Alternative Monitoring Plan for
                                                                               Group 2 Storage Tanks at an
                                                                               Asphalt Roofing Manufacturing
                                                                               Facility.

[[Page 10570]]

 
Z200004..........................  NESHAP..............  VVVVVV, BBBBBBB,     Applicability Determination for
                                                          CCCCCCC.             Frit Manufacturing Facility.
Z200005..........................  NESHAP..............  ZZZZ...............  Alternative Monitoring Plan for
                                                                               Reciprocating Internal Combustion
                                                                               Engines at a Natural Gas Plant.
----------------------------------------------------------------------------------------------------------------

Abstracts

Abstract for [1900024]
    Q: Does EPA determine that Mainline Valve 29 (MLV 29) installed at 
the Southern Natural Gas Company compressor station in Thomaston, 
Georgia (TCS) is part of the affected facility subject to the fugitive 
emission monitoring requirements in NSPS subpart OOOOa?
    A: Yes. Based on the information provided, EPA determines that when 
the modification to TCS occurred in March 2017, MLV 29 became part of 
the affected facility subject to the fugitive emissions monitoring 
requirements of subpart OOOOa. According to 40 CFR 60.5397a, ''the 
collection of fugitive emissions components at a compressor station, as 
defined in Sec.  60.5430a, is an affected facility,'' and MLV 29 meets 
the definition of ``fugitive emissions components'' because it is a 
component located within the fence line of a compressor station and 
potentially emits fugitive emissions of methane and volatile organic 
compounds.

Abstract for [1900025]

    Q: Does EPA determine that the sweetening units and sweetening 
units followed by a sulfur recovery unit (hereinafter referred to 
collectively as ``sweetening units'') at the Lost Cabin Gas Plant in 
Lysite, Wyoming are affected facilities under NSPS subpart LLL?
    A: Yes. Based on the information provided and our analysis of 
subpart LLL, EPA determines that the sweetening units are affected 
facilities under NSPS subpart LLL because subpart LLL applies to 
sweetening units that ``process natural gas,'' and although subpart LLL 
does not define ``process natural gas,'' the preambles to the proposed 
and final subpart LLL rulemakings (49 FR 2656, January 20, 1984 and 50 
FR 40158, October 1, 1985) clarify that gas processing in subpart LLL 
refers to sweetening and sulfur recovery.

Abstract for [1900026]

    Q: Does EPA approve alternate span gas concentration values for 
hydrogen sulfide (H2S) on the total reduced sulfur (TRS) continuous 
emissions monitoring system (CEMS) for the Fluor and Cumene flares at 
the Citgo Refining and Chemicals Company (CITGO) Corpus Christi East 
petroleum refinery and the West Plant Process flare at the CITGO Corpus 
Christi West Plant petroleum refinery in Corpus Christi, Texas covered 
under NSPS subpart Ja?
    A: Yes. Based on the process data and analyzer information 
submitted by CITGO, EPA conditionally approves the request to reduce 
the concentration ranges of the calibration gas to specified ranges and 
validation standards on the TRS CEMS for the three flares. As 
conditions of this approval, CITGO must meet all other requirements of 
the monitoring procedures of NSPS Subpart Ja for H2S and TRS, and must 
also conduct linearity analyses on each Extrel MAX300-IGTM 
mass spectrometer once every three years to determine each detector's 
linearity across the entire range of expected sulfur concentrations. A 
report of each completed linearity analysis shall be submitted to EPA 
Region 6 and the Texas Commission on Environmental Quality and 
maintained in each facility's on-site records.

Abstract for [1900027]

    Q: Does EPA approve an alternative monitoring plan (AMP) and 
performance test waiver request for ProAct Services Corporation 
(ProAct) to conduct monitoring of hydrogen sulfide (H2S) emissions in 
lieu of installing a continuous emission monitoring system, when 
performing degassing for tanks, vessels, and pipes controlled by 
portable temporary thermal oxidizers and internal combustion engines at 
various refineries located in EPA Region 6 that are subject to NSPS 
subparts J and Ja?
    A: Yes. Based on the description of the process, the vent gas 
streams, the design of the vent gas controls, and the proposed H2S 
monitoring and data collection methods furnished by ProAct Services 
Corporation, EPA conditionally approves the AMP. In addition, based on 
ProAct's proposed alternate testing protocols used during each 
degassing event, EPA waives performance testing pursuant to 40 CFR 
60.8(b)(4). The approved AMP and performance test waiver are only for 
refineries located in EPA Region 6. EPA includes proposed operating 
parameter limits and data that the refineries must furnish as part of 
the conditional approval.

Abstract for [1900028]

    Q: Does EPA approve a modification of a previously approved 
alternative monitoring plan (AMP) for Phillips 66 Company to revise the 
parametric monitoring limits for the wet gas scrubbers (WGS) installed 
on Nos. 4 and 5 fluidized catalytic cracking units (FCCU) at the Ponca 
City Refinery in Ponca City, Oklahoma covered by NSPS subpart J and 
NESHAP subpart UUU?
    A: Yes. Based upon the design of the WGS units and the process 
specific supplemental information provided by Phillips 66 Company, EPA 
conditionally approves the AMP modification for the two FCCU WGS at the 
Ponca City Refinery. EPA reviewed the recent performance test results 
provided by Phillips 66 Company and found the data supportive for 
modifying the values of the established final operating parameter 
limits (OPLs). The OPLs approved for demonstrating compliance with the 
AMP included minimum liquid-to-gas ratio, minimum water pressure to 
quench/spray tower, minimum slurry liquid circulation pump discharge 
pressure, and minimum pressure drop across filter modules/cyclolabs.

Abstract for [1900030]

    Q: Does EPA approve ExxonMobil Refining and Supply Company's 
(ExxonMobil's) waiver of the frequency of particulate matter (PM) 
emission rate testing for one fluidized catalytic cracking unit (FCCU) 
at the Beaumont Refinery, Beaumont, Texas, which is subject to NSPS 
subpart J and annual testing PM testing under consent decree, Civil 
Action No. 05-C-5809?
    A: Yes. EPA conditionally approves ExxonMobil 's request to reduce 
the frequency of PM testing for the one FCCU at the Beaumont Refinery 
from annually to once every five years, with the limitation that 
ExxonMobil shall resume annual PM testing for the FCCU any time the 
NSPS subpart J emission

[[Page 10571]]

limit of 1.0 pound of PM per 1000 pounds of coke burned (on a 3-hour 
average basis) is exceeded.

Abstract for [1900031]

    Q: Does EPA approve a modification of a previously issued 
alternative monitoring plan (AMP) for the wet gas scrubber (WGS) on one 
fluidized catalytic cracking unit (FCCU) at the Marathon El Paso 
Refinery in El Paso, Texas, subject to NSPS subparts J and Ja and 
NESHAP subpart UUU, for parametric monitoring of opacity at the WGS in 
lieu of a continuous opacity monitoring system (COMS), due to changes 
in operating conditions at the units when moisture levels are high in 
the stacks?
    A: Yes. Based upon the design of the WGS unit and the process 
specific supplemental information provided, EPA approves the AMP 
modification to use parametric monitoring in lieu of COMS for the WGS 
on one FCCU at the Marathon El Paso Refinery. EPA reviewed the recent 
performance test results and found the data supportive for modifying 
the final operating parameter limits (OPLs). The OPLs that EPA approves 
for demonstrating compliance with the AMP included minimum Liquid-to-
Gas Ratio and the minimum pressure drop across the WGS.

Abstract for [1900032]

    Q: Does EPA approve an alternative monitoring plan (AMP) if delayed 
coking unit (DCU) 843 is rerouted from Flare #23 to the Merichem Flare, 
to exempt Valero Port Arthur Refinery (Valero) in Port Arthur, Texas 
subject to NSPS subpart J from monitoring hydrogen sulfide (H2S) in the 
DCU 843 overhead vapor stream from the disulfide oxidation tower T-
6750?
    A: Yes. Based on the description of the vent gas stream, the 
process parameters to be monitored, the design of the vent gas 
controls, and H2S monitoring data, EPA conditionally approves the AMP. 
The fuel gas stream from the disulfide oxidation tower T-6750 is 
inherently low in sulfur as demonstrated by H2S monitoring data 
previously furnished to EPA for a previously issued AMP exempting H2S 
monitoring for oxidation tower T-6750 when DCU 843 was previously 
routed to Flare #23. Valero must continue to meet all other applicable 
NSPS requirements, and the DCU 843 overhead vapor stream from disulfide 
oil oxidation tower T-6750 must be combusted in the Merichem Flare.

Abstract for [1900033]

    Q: Does EPA approve a modification of a previously issued 
alternative monitoring plan (AMP) for the wet gas scrubber (WGS) on one 
fluidized catalytic cracking unit (FCCU) at the Shell Chemical, LP Deer 
Park Refinery in Deer Park, Texas (Shell Chemical, LP), subject to NSPS 
subpart J and NESHAP subpart UUU, for parametric monitoring of opacity 
at the WGS in lieu of a continuous opacity monitoring system (COMS)?
    A: Yes. Based upon the design of the WGS unit and the process 
specific data and supplemental information provided by Shell Chemical, 
LP, EPA approves an AMP modification to use parametric monitoring in 
lieu of COMS for the WGS on one FCCU at the Deer Park Refinery. EPA 
reviewed the recent performance test results and found the data 
supportive for modifying the final operating parameter limits (OPLs). 
The OPLs that EPA approves for demonstrating compliance with the AMP 
included minimum Liquid-to-Gas Ratio, minimum liquid side pressure at 
the filter module nozzles, and minimum pressure drop at the quench 
nozzle.

Abstract for [1900034]

    Q: Does EPA determine that an expansion to the Advanced Disposal 
Services Glacier Ridge Landfill, LLC (GRL) in Horicon, Wisconsin meets 
the applicability criteria of NSPS subpart XXX, if the expansion was 
approved under a solid waste permit and construction had commenced 
prior to July 17, 2014?
    A: No. EPA determines that GRL landfill expansion has not triggered 
subpart XXX applicability because a modification as defined in under 40 
CFR 60.761 has not occurred. GRL's current design capacity of 
20,269,000 cubic yards was permitted by the Wisconsin Department of 
Natural Resources prior to July 17, 2014 and construction on that 
permitted expansion was commenced prior to July 17, 2014, the effective 
date of NSPS subpart XXX.

Abstract for [1900035]

    Q: Does EPA approve the alternative monitoring plan (AMP) request 
from PSC Industrial Outsourcing, LP (HydroChemPSC) to conduct 
monitoring of hydrogen sulfide emissions, in lieu of installing a 
continuous emission monitoring system, when performing degassing for 
storage tanks, process unit vessels, and piping controlled by temporary 
portable fuel gas combustion devices (FGCDs) at petroleum refineries 
located in EPA Region 5 that are subject to NSPS subparts J and Ja?
    A: Yes. Since the storage tank, process unit vessel and piping 
degassing operations are infrequent and temporary, EPA conditionally 
approves an AMP when HydroChemPSC uses a portable FGCD to control 
emissions from these processes. EPA included in the response letter 
specifications regarding sampling procedures, frequency of sampling, 
methods to determine compliance, recordkeeping, and data that the 
refineries must furnish as part of the conditional approval.

Abstract for [1900036]

    Q: Does EPA approve an alternative monitoring plan (AMP) request 
from Packaging Corporation of America (PCA) to use a predictive 
emission monitoring system (PEMS) in lieu of a NOx continuous emission 
monitoring system (CEMS) on Boiler B24 at the PCA facility in Tomahawk, 
Wisconsin, subject to NSPS subpart Db?
    A: No. Based on the information provided, EPA denies PCA's AMP 
request for use of a PEMs in lieu of a Nox CEMS because the heat input 
capacity of Boiler B24 (352.9 MMBtu/hr) significantly exceeds the 250 
MMBtu/hr capacity limit in 40 CFR 60.49b(c) for allowing use of PEMS 
and Boiler B24. Additionally, Boiler B24 may burn types of solid fuels 
(e.g., biomass, tire-derived fuel, paper recycling residuals, and paper 
pellets) not identified in 40 CFR 60.48b(g)(2). Finally, Boiler B24 was 
constructed in 1977 and has been in operation since that time.

Abstract for [1900037]

    Q: Does EPA approve an extension of the deadline from April 2, 2019 
to July 31, 2019 for the initial performance test for nitrogen oxides 
(NOx) emissions for Boiler No. 4 at the Tilden Mining Company, LLC, 
(Tilden) facility in Ishpeming, Michigan, covered by NSPS subpart Db, 
due to force majeure events including a series of equipment failures 
that delayed achieving the maximum production rate?
    A: No. Based on the information provided, EPA denies the request 
for an extension of the performance test deadline. Based on the 
information provided, Tilden's Boiler No. 4 achieved maximum production 
rate on February 1, 2019, providing the 60-day testing period specified 
in 40 CFR 60.8(a). Because Tilden had 60 days to complete testing prior 
to April 2, 2019, the equipment failures do not qualify as force 
majeure events, which are defined by 40 CFR 60.2 as ``prevent[ing] the 
owner or operator from complying with the regulatory requirement to 
conduct

[[Page 10572]]

performance tests within the specified timeframe.''

Abstract for [1900038]

    Q: Does EPA approve an alternate span gas concentration range equal 
to 1 to 3 times the NSPS subpart Ja limit for the nitrogen oxides (NOx) 
continuous emission monitoring system (CEMS) for heaters 25H-3, 25H-4, 
37H-3/4/5, and 30H-401 at the Flint Hills Resources Pine Bend Refinery 
(FHR) in Saint Paul, Minnesota covered under NSPS subpart Ja?
    A: Yes. Based on the process data and analyzer information 
submitted by FHR, EPA conditionally approves the request to change the 
span gas range to 1 to 3 times the NSPS Subpart Ja limit for the NOx 
CEMS for the four heaters because a lower span should provide more 
accurate measurement of NOx emissions from these heaters during typical 
operations. The conditions for approval are specified in the EPA 
response letter.

Abstract for [1900039]

    Q: Does EPA approve Covia Holdings Corporation's (Covia's) 
alternative monitoring plan (AMP) request to establish pressure drop 
and liquid flow rate parametric limits for monitoring particulate 
matter (PM) emissions from wet scrubbers on fluidized bed dryers at its 
two non-metallic mineral processing facilities located in Ottawa, 
Minnesota and Kasota, Minnesota, subject to NSPS subpart UUU, by using 
for each scrubber, the results of multiple performance tests conducted 
2012 through the most recent performance test, as opposed to using only 
the most recent performance test?
    A: Yes. Based on the performance test and process data submitted by 
Covia, as well as Covia's statement that there have been no 
modifications to any of the processes or control devices since the 
earliest test, EPA conditionally approves the request. The conditions 
for the approval are specified in the EPA response letter and exclude 
use of any test older than 12 years or conducted prior to modifications 
to the dryer or scrubber, and any test that resulted in PM emissions 
above ten percent of the emissions limit that would lower the minimum 
pressure drop or expand the liquid flow rate range. Additionally, all 
future test results for the wet scrubbers must be shared with EPA 
Region 5 and the Minnesota Pollution Control Agency.

Abstract for [2000001]

    Q: Does EPA determine that two vibratory feeders at the Blue Waters 
Industries' limestone quarry in Lebanon, Tennessee meet the definition 
of affected facilities under NSPS subpart OOO?
    A: No. Based upon the design and operation of the vibratory 
feeders, EPA determines that the feeders do not fit the definitions of 
any of the facilities subject to subpart OOO. Although the feeders are 
not affected facilities under subpart OOO, the transfer points from the 
feeders onto two downstream conveyor belts would be subject to an 
opacity limit in Table 3 to subpart OOO for fugitive emissions sources, 
if the conveyors were constructed, modified, or reconstructed after 
August 13, 1983.

Abstract for [2000003]

    Q: Does EPA determine that the institutional waste incinerators 
operated at four United States Air Force (USAF) Long Range Radar Sites 
(LRRS) located in Point Barrow, Barter Island, Cold Bay, and Oliktok, 
Alaska qualify under 40 CFR 60.2887(h) to be excluded from NSPS subpart 
EEEE?
    A: No. EPA determines that the USAF LRRS institutional waste 
incinerators do not qualify for the ``rural institutional waste 
incinerators'' exclusion under 40 CFR 60.2887(h) under subpart EEEE 
because the application for exclusion was not submitted prior to the 
initial startup of the incinerators and information was not provided 
demonstrating that alternative disposal options are unavailable or 
economically infeasible.

Abstract for [2000004]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
continuously monitor pressure drop and liquid flow rate of the venturi 
scrubber installed on the No. 1 bark boiler at the Foley Cellulose LLC 
Kraft pulp mill (Foley Mill) in Perry, Florida subject to NSPS Subpart 
Db, in lieu of continuously monitoring opacity or particulate matter 
(PM)?
    A: Yes. Based on the information provided, EPA approves the AMP. 
EPA agrees with the technical concerns raised by Foley Mill regarding 
using a PM continuous emission monitoring system or continuous opacity 
monitoring system on biomass-fired boilers, due to water droplets in 
the flue downstream of the scrubbers. The approved AMP is equivalent to 
the PM monitoring requirements for a 300 MMBtu/hour biomass boiler 
subject to NESHAP subpart DDDDD, and the requirements of the AMP are 
detailed in the EPA response letter.

Abstract for [2000005]

    Q: Does EPA approve an Alternative Monitoring Plan (AMP) and 
performance test waiver request for USA DeBusk, LLC (Debusk) to conduct 
monitoring of hydrogen sulfide (H2S) emissions, in lieu of installing a 
continuous emission monitoring system, when performing degassing for 
tanks, vessels, and piping controlled by temporary portable fuel gas 
combustion devices (FGCDs) at petroleum refineries located in Region 4 
that are subject to NSPS subparts J and Ja?
    A: Yes. Based on the description of the process, the vent gas 
streams, the design of the vent gas controls, and the proposed H2S 
monitoring and data collection methods furnished by Debusk, EPA 
conditionally approves the AMP for H2S emissions from degassing and 
cleaning of tanks, vessels, and piping. In addition, based on Debusk's 
proposed alternate testing protocols used during each degassing event, 
EPA waives performance testing pursuant to 40 CFR 60.8(b)(4). EPA 
includes in the response letter conditions regarding sampling 
procedures, re-sampling requirements, methods for determining 
compliance, FGCD operation, recordkeeping, and reporting.

Abstract for [2000007]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
continuously monitor scrubber operating parameter limits (OPLs) to 
demonstrate compliance with the opacity limit for the No. 2 and No. 3 
wood-residue fueled boilers equipped, respectively, with a wet 
electrostatic precipitator (WESP) and a venturi scrubber, at the 
WestRock Coated Board, LLC Mahrt Mill in Phenix City, Alabama subject 
to NSPS subpart Db?
    A: Yes. EPA approves the AMP as proposed to continuously monitor 
the operating load or steam generation for both boilers, the total 
secondary electric power input of the WESP for the No. 2 boiler, and 
the pressure drop and liquid flow rate of the scrubber for the No. 3 
boiler. EPA agrees with the technical concerns raised by Mahrt Mill 
regarding using a PM continuous emission monitoring system or 
continuous opacity monitoring system on biomass-fired boilers, due to 
water droplets in the flue downstream of the scrubbers. The approved 
AMP is equivalent to the PM monitoring requirements for biomass boilers 
of equivalent size subject to NESHAP subpart DDDDD, and the 
requirements of the AMP are detailed in the EPA response letter.

Abstract for [2000013]

    Q: Does EPA agreed with the Oklahoma Department of Environmental 
Quality (ODEQ) that all affected sources subject to any NSPS are 
required to comply with the requirements specified

[[Page 10573]]

in appendix F to 40 CFR part 60, which is used for continuous emission 
monitoring systems (CEMS) in determining compliance with emissions 
limits as specified in the NSPS General Provisions?
    A: No. Each subpart should be reviewed for applicable references to 
appendix F and portions of the General Provisions (GP) to 40 CFR part 
60 for affected facilities specified in the subpart. Due consideration 
should be given to the applicability sections provided within each 
subpart and appendix F (Quality Assurance Procedures).

Abstract for [FP00008]

    Q: Does EPA approve a modification of a previously approved 
alternative monitoring plan (AMP) for establishing operating limits 
(OPLs) for the sewage sludge incinerator (SSI) using a 
VenturiPakTM wet scrubber with mercury modules at the City 
of Anacortes Wastewater Treatment Plant (Anacortes) in Anacortes, 
Washington subject to 40 CFR part 62, subpart LLL?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP modification. EPA agrees with establishing the sand 
bed temperature of the SSI as the operating parameter for monitoring 
dioxins/furans in lieu of the exhaust gas temperature, and Anacortes 
must limit the maximum dry sludge feed rate to no greater than 110 
percent of the average dry sludge feed rate achieved during the most 
recent performance test demonstrating compliance with the dioxins/
furans emission limits. EPA agrees with replacing the 12-hour block 
averaging time for OPLs specified in table 4 to subpart LLL with an 
``operating day block average'' averaging time because Anacortes 
typically operates only 6 to 8 hours per day. EPA also agrees that the 
reduced performance testing frequency provided in 40 CFR 62.16000(a)(3) 
should apply to Anacortes. The approved operating parameters and 
conditions for establishing OPLs are specified in the EPA approval 
letter.

Abstract for [FP00009]

    Q1: Does EPA approve an alternative monitoring plan (AMP) for 
establishing and monitoring operating parameters to demonstrate 
compliance with the mercury (Hg) emission limit applicable to the 
fluidized bed sewage sludge incinerator (SSI) equipped with a control 
equipment not specified in 40 CFR 62.15965 at the Edmonds Wastewater 
Treatment Plant (Edmonds) in Edmonds, Washington subject to 40 CFR part 
62 subpart LLL?
    A1: Yes. Based on the information provided, EPA approves the AMP 
for demonstrating compliance with the Hg emission limit by monitoring 
and recording continuously the pressure drop across the Hg control 
system (i.e., W.L. Gore and Associates, Inc./EnviroCare International 
Sorbent Polymer Composite technology Hg control system in combination 
with a mist eliminator) and the inlet temperature to the system, and by 
monitoring on a quarterly basis the Hg concentrations in the flue gas 
at the inlet and outlet of the system.
    Q2: Does EPA approve an AMP to use a wet scrubber system and to 
practice good combustion practices for demonstrating compliance with 
the dioxins/furans emission limit applicable to Edmonds' SSI?
    A2: No. Based on the information provided, EPA does not approve the 
AMP because it does not propose to monitor any operating parameters or 
establish operating parameter limits (OPLs) for Edmunds' SSI to 
demonstrate compliance with the dioxins/furans emissions limit. Edmonds 
should submit a revised petition in accordance with 40 CFR 
62.15965(b)(2)(i) through (v) that addresses dioxins/furans-specific 
operating parameters and OPLs associated with good combustion 
practices.
    Q3: Does EPA approve Edmonds' AMP for its VenturiPakTM scrubber 
system to demonstrate compliance with the three OPLs for scrubbers in 
table 4 to subpart LLL, by monitoring the OPLs only at the drain that 
receives the total scrubber water discharge from the scrubber system?
    A3: No. EPA does not approve the AMP because Edmunds did not 
provide the information specified by 40 CFR 62.15995(e)(1) through (6). 
Edmunds' scrubber system generally consists of five different scrubbers 
operated in series, and the Federal Plan requires monitoring pressure 
drop, liquid flow rate, and pH of each wet scrubber in a scrubber 
system. Edmonds may revise and resubmit their AMP.
    Q4: Does EPA approve Edmonds' AMP changing the location for 
monitoring the minimum combustion chamber operating temperature of the 
SSI from the exhaust gas to the fluidized sand bed?
    A4: Yes. Based on the information provided, EPA approves the AMP 
since the alternative location will enable accurate and representative 
measurements.
    Q5: Does EPA approve Edmonds' AMP specifying the facility's ash 
handling system monitoring procedures?
    A5: No. Based on the information provided, EPA does not approve the 
AMP because Edmonds' AMP does not include operating procedures to 
address the complete ash conveying system (including conveyor transfer 
points) or sufficient information for EPA to evaluate whether daily 
inspections of the ash handling system and observation of the loadout 
activities will be adequate to meet the requirements of 40 CFR 62.15955 
and 62.15995 on an ongoing basis. Edmonds may revise and resubmit their 
AMP.

Abstract for [FP00010]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
demonstrate compliance with the mercury (Hg) emission limit applicable 
to the fluidized bed sewage sludge incinerator (SSI) equipped with a 
W.L. Gore and Associates, Inc./EnviroCare International Sorbent Polymer 
Composite technology Hg control system at the Lynnwood Wastewater 
Treatment Plant (Lynnwood) in Lynnwood, Washington subject to 40 CFR 
part 62 subpart LLL?
    A1: Yes. Based on the information provided, EPA approves the AMP 
for demonstrating compliance with the Hg emission limit by monitoring 
and recording continuously the pressure drop across the Hg control 
system and the inlet temperature to the system, and by monitoring on a 
quarterly basis the Hg concentrations in the flue gas at the inlet and 
outlet of the system.
    Q2: Does EPA approve an AMP to use a wet scrubber system and to 
practice good combustion practices for demonstrating compliance with 
the dioxins/furans emission limit applicable to Lynnwood's SSI?
    A2: No. Based on the information provided, EPA does not approve the 
AMP because it does not propose to monitor any operating parameters or 
establish operating parameter limits (OPLs) for Lynnwood's SSI to 
demonstrate compliance with the dioxins/furans emissions limit. 
Lynnwood should submit a revised petition in accordance with 40 CFR 
62.15965(b)(2)(i) through (v) that addresses dioxins/furans-specific 
operating parameters and OPLs associated with good combustion 
practices.
    Q3: Does EPA approve Lynnwood's AMP for its wet scrubber system to 
demonstrate compliance with the OPLs for scrubbers in table 4 to 
subpart LLL by monitoring the pressure drop across the venturi 
scrubber, the total scrubber water flow rates not including the mist 
eliminator, and the pH of the scrubber discharge from the impingement 
tray

[[Page 10574]]

scrubber and associated tray irrigation water flow?
    A3: No. EPA does not approve the AMP because Lynnwood did not 
provide the information specified by 40 CFR 62.15995(e)(1) through (6). 
Lynnwood's scrubber system generally consists of five different 
scrubbers operated in series, and the Federal Plan requires monitoring 
pressure drop, liquid flow rate, and pH of each wet scrubber in a 
scrubber system. Lynnwood may revise and resubmit their AMP.
    Q4: Does EPA approve Lynnwood's AMP for monitoring the minimum 
combustion chamber operating temperature of the SSI using the average 
reading of three thermocouples that measure the combustion temperature 
within the fluidized sand bed of the SSI?
    A4: Yes. Based on the information provided, EPA approves the AMP 
for the SSI because it meets the 40 CFR 62.15960 requirements.
    Q5: Does EPA approve Lynnwood's AMP specifying the facility's ash 
handling system monitoring procedures?
    A5: No. Based on the information provided, EPA does not approve the 
AMP because Lynnwood's AMP does not include operating procedures to 
address the complete ash conveying system (including conveyor transfer 
points) or sufficient information for EPA to evaluate whether daily 
observations of the filter cake and observation of the loadout 
activities will be adequate to meet the requirements of 40 CFR 62.15955 
and 62.15995 on an ongoing basis. Lynnwood may revise and resubmit 
their AMP.

Abstract for [FP00011]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
demonstrate compliance with the mercury (Hg) emission limit applicable 
to the fluidized bed sewage sludge incinerator (SSI) equipped with a 
W.L. Gore and Associates, Inc./EnviroCare International Sorbent Polymer 
Composite technology Hg control system in combination with a mist 
eliminator at the Vancouver Wastewater Treatment Plant (Vancouver) in 
Vancouver, Washington subject to 40 CFR part 62 subpart LLL?
    A1: No. Based on the information provided, EPA does not approve 
Vancouver's AMP to monitor the Hg concentrations collected on the 
sorption media modules within the Hg control system because Vancouver 
was unable to establish an operating parameter limit (OPL) and 
averaging time for this operating parameter. EPA approves monitoring 
and recording continuously the inlet temperature to the Hg control 
system and monitoring on a quarterly basis the Hg concentrations in the 
flue gas at the inlet and outlet of the system. Vancouver should submit 
a revised petition proposing Hg-specific OPLs that meet the 
requirements of 40 CFR 62.15965(b)(2)(iii), and Vancouver should 
consider whether the pressure drop across the Hg control system should 
be included as an OPL.
    Q2: Does EPA approve an AMP to use a wet scrubber system and to 
practice good combustion practices for demonstrating compliance with 
the dioxins/furans emission limit applicable to Vancouver's SSI?
    A2: No. Based on the information provided, EPA does not approve the 
AMP because it does not propose to monitor any operating parameters or 
establish OPLs for Vancouver's SSI to demonstrate compliance with the 
dioxins/furans emissions limit. Vancouver should submit a revised 
petition in accordance with 40 CFR 62.15965(b)(2)(i) through (v) to 
propose dioxins/furans OPLs associated with good combustion practices.
    Q3: Does EPA approve Vancouver's AMP for its quench/venturi wet 
scrubber system to demonstrate compliance with the OPLs for scrubbers 
in table 4 to subpart LLL by monitoring the pressure drop across the 
tray scrubber, the total scrubber water flow rate from the quench, 
venturi, and tray scrubbers, and the pH of the tray scrubber effluent?
    A3: No. EPA does not approve the AMP because Vancouver did not 
provide the information specified by 40 CFR 62.15995(e)(1) through (6). 
Vancouver's scrubber system consists of multiple scrubbers operated in 
series, and subpart LLL requires monitoring pressure drop, liquid flow 
rate, and pH of each wet scrubber in a scrubber system. Vancouver may 
revise and resubmit their AMP.
    Q4: Does EPA approve Vancouver's AMP for monitoring the minimum 
combustion chamber operating temperature of the SSI using the average 
reading of three thermocouples that measure the combustion temperature 
within the fluidized sand bed of the SSI?
    A4: Yes. Based on the information provided, EPA approves the AMP 
for the SSI because it meets the 40 CFR 62.15960 requirements.
    Q5: Does EPA approve Vancouver's AMP for the facility's ash 
handling system monitoring procedures?
    A5: No. Based on the information provided, EPA does not approve the 
AMP because it does not include operating procedures to address the 
complete ash conveying system or sufficient information for EPA to 
evaluate whether daily observations of the ash filter cake to the roll-
off bins and the weekly sampling of the moisture content of the ash 
filter cake will be adequate to meet the requirements of 40 CFR 
62.15955 and 62.15995 on an ongoing basis. Vancouver may revise and 
resubmit their AMP.

Abstract for [FP00012]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
demonstrate compliance with the mercury (Hg) emission limit applicable 
to two multiple hearth sewage sludge incinerators (SSIs) equipped with 
a wet venturi scrubber and wet electrostatic precipitator (WESP) at the 
Bellingham Wastewater Treatment Plant (Bellingham) in Bellingham, 
Washington subject to 40 CFR part 62 subpart LLL?
    A1: No. Based on the information provided, EPA does not approve the 
AMP because it proposes no monitoring of Hg-specific operating 
parameter limits (OPLs) and provides no information on the influence of 
the wet scrubber and WESP on Hg emissions. Bellingham should submit a 
revised petition proposing Hg-specific OPLs that adequately address 40 
CFR 62.15965(b)(2)(i) through (v).
    Q2: Does EPA approve an AMP to use an afterburner (thermal 
oxidizer), wet scrubber, WESP, and good combustion practices to comply 
with the dioxins/furans emission limit applicable to Bellingham's SSIs?
    A2: No. Based on the information provided, EPA does not approve the 
AMP because it does not propose to monitor any OPLs to demonstrate 
compliance with the dioxins/furans emission limit, and it does not 
provide any information on the afterburner's influence on dioxins/
furans emissions. Bellingham should submit a revised petition to 
adequately address 40 CFR 62.15965(b)(2)(i) through (v), including 
proposing dioxins/furans-specific OPLs associated with good combustion 
practices.
    Q3: Does EPA approve Bellingham's AMP for its WESPs to demonstrate 
compliance with the OPLs for scrubbers in table 4 to subpart LLL by 
monitoring the secondary voltage, amperage, and hourly inlet water flow 
to the WESP?
    A3: No. EPA does not approve monitoring hourly inlet water flow to 
the WESP in lieu of hourly outlet water flow from the WESP because 
Bellingham did not provide the information specified by 40 CFR 
62.15995(e)(1) through (6). EPA

[[Page 10575]]

approves monitoring of the secondary voltage and amperage of the WESPs.
    Q4: Does EPA approve Bellingham's AMP for its wet scrubber systems, 
to demonstrate compliance with the OPLs for scrubbers in table 4 to 
subpart LLL by monitoring the combined pressure drop across the venturi 
and tray wet scrubbers, the total scrubber water flow rate to both 
venturi and tray wet scrubbers, and the pH of the tray scrubber 
influent?
    A4: No. EPA does not approve the AMP because Bellingham did not 
provide the information specified by 40 CFR 62.15995(e)(1) through (6). 
Bellingham's scrubber systems consist of multiple scrubbers operated in 
series, and subpart LLL requires parameter monitoring of each wet 
scrubber in a scrubber system.
    Q5: Does EPA approve Bellingham's AMP for monitoring the minimum 
temperature of the afterburner combustion chamber of the SSIs using a 
temperature sensor located near the exit from the afterburner chamber 
upstream of the entry of the venturi scrubber?
    A5: No. Based on the information provided, EPA does not approve the 
AMP because EPA needs more information regarding the design and 
performance specifications of the afterburner and supplemental burner 
to determine whether the temperature sensor provides a representative 
temperature of the afterburner combustion chamber.
    Q6: Does EPA approve Bellingham's AMP for the facility's ash 
handling system monitoring procedures?
    A6: No. Based on the information provided, EPA does not approve the 
AMP. The AMP must be revised to include the upstream portion of the ash 
handling system during Method 22 testing and to explain how Bellingham 
will properly conduct the Method 22 test during ash filling. Further, 
the AMP must provide information for EPA to evaluate if the ash 
handling units used to capture and control fugitive ash emissions, 
equipment inspections, visible fugitive ash emission checks, and 
monitoring of the fabric filter pressure drop and water usage in the 
ash handling system will meet on an ongoing basis the requirements of 
40 CFR 62.15955 and 62.15995.

Abstract for [FP00013]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
demonstrate compliance with the operating parameter limits (OPLs) for 
the VenturiPakTM scrubber system for the multiple hearth sewage sludge 
incinerator (SSI) at the Anchorage Water & Wastewater Utility 
(Anchorage) in Anchorage, Washington subject to 40 CFR part 62 subpart 
LLL?
    A1: No. EPA does not approve the AMP to monitor the combined 
pressure drop across the impingement tray scrubber, venturi scrubber, 
separator tray scrubber, and mist eliminator; the combined liquid flow 
rate of all the scrubbers, and the combined pH of all scrubber liquid 
effluent. Anchorage's scrubber systems consist of multiple scrubbers 
operated in series, and subpart LLL requires monitoring pressure drop, 
liquid flow rate, and pH of each wet scrubber in a scrubber system; 
however, the AMP did not provide the information specified by 40 CFR 
62.15995(e)(1) through (6). Anchorage may revise and resubmit their 
AMP.
    Q2: Does EPA approve Anchorage's AMP for monitoring the minimum 
temperature of the afterburner combustion chamber of the SSIs using 
three temperature sensors in the afterburner combustion chamber?
    A2: No. Based on the information provided, EPA does not approve the 
AMP because the AMP does not address how the temperature sensors are 
representative of control of the SSI exhaust emissions as specified in 
40 CFR 62.15995(a)(1) or how the sensor locations are representative as 
specified in 40 CFR 62.15995(a)(3)(ii)(D)(1). Anchorage must resubmit a 
revised AMP that addresses all requirements in 40 CFR 62.15995(a)(1) 
through (8).
    Q3: Does EPA approve Anchorage's AMP for the facility's ash 
handling system monitoring procedures?
    A3: No. EPA does not approve the AMP because it does not provide 
sufficient detail to determine whether the ash handling system 
operating procedures meet the requirements of 40 CFR 62.15955 and 
62.15995 or whether the visible emission limit is met on an ongoing 
basis. Further, the AMP does not clearly indicate whether all 
components of the ash handling system are included in the operating 
procedures and whether the Method 22 compliance testing will be 
performed on the entire ash handling system.
    Q4: Does EPA approve Anchorage's AMP for to demonstrate compliance 
with the mercury (Hg) emission limit without the use of Hg-specific 
controls?
    A4: No. EPA does not approve the AMP. Anchorage's AMP does not 
propose any Hg-specific OPLs or provide any information on how it 
controls Hg emissions from the SSI, including the extent to which 
Anchorage relies on maintaining the Hg concentration in the dry sludge 
feed below a certain level to comply with the Hg emission limit. 
Anchorage should submit a revised petition regarding Hg-specific OPLs 
that adequately addresses 40 CFR 62.15965(b)(2)(i) through (v).
    Q5: Does EPA approve Anchorage's AMP to demonstrate compliance with 
the dioxins/furans emission limit using good combustion practices and a 
series of wet scrubbers, but without the use of dioxins/furans-specific 
controls?
    A5: No. EPA does not approve the AMP because it does not propose to 
monitor dioxins/furans-specific OPLs for its SSI to demonstrate 
compliance with the dioxins/furans emission limit, or to provide any 
information on the control of dioxins/furans from the SSI, such as the 
extent to which it relies on maintaining the temperature in the 
combustion zone above a certain level to comply with the dioxins/furans 
emission limit. Anchorage should submit a revised petition to propose 
dioxins/furans OPLs associated with good combustion practices that 
adequately addresses 40 CFR 62.15965(b)(2)(i) through (v).

Abstract for [M190004]

    Q. Does EPA approve an alternative monitoring plan to change the 
sulfur dioxide (SO2) operating limit to 300 ppm and monitor 
stack emissions with an SO2 continuous emissions monitoring 
system (CEMS) that has a range of 0-300 ppm and a span of 0-200 ppm at 
Holcim (US) Inc.'s Portland cement plant (Portland Plant) in Florence, 
Colorado subject to NESHAP subpart LLL?
    A: Yes. Based on the process information and test data submitted by 
Portland Plant, EPA conditionally approves an SO2 operating 
limit of 300 ppm, which is more stringent than the 369 ppm 
SO2 operating level determined by Portland Plant's 2018 
hydrogen chloride (HCl) compliance test, and using an SO2 
CEMS with a range of 0-300 ppm and a span of 0-200 ppm. If future HCl 
performance testing indicates the SO2 operating parameter 
limit should be less than 300 ppm, Portland Plant must establish a 
lower SO2 operating parameter limit, and the SO2 
operating limit must be set, and later monitored, in the same units 
(PPMVD or PPMV). Further, should SO2 levels increase above 
the 30-day rolling average SO2 operating limit by 10 percent 
or more, then Portland Plant must undertake the actions required by 40 
CFR 63.1349(b)(8)(x)(A) and (B) and 40 CFR 63.1350(l)(3)(i) and (ii).

Abstract for [M190005]

    Q: Does EPA approve a modification of a previously approved 
Alternative Monitoring Plan (AMP) for Foley Cellulose LLC (Foley Mill) 
to revise the

[[Page 10576]]

location for methanol flow rate and density monitoring for measuring 
steam stripper treatment of pulping condensates at the Foley Mill in 
Perry, Florida covered by NESHAP subpart S?
    A: Yes. Based upon flow rate and density monitoring data provided 
by Foley Mill, and supplemental information provided by Foley Mill 
regarding the size of the methanol storage tank and average amount of 
methanol burned on a normal production day, EPA approves the AMP 
modification for revising the location for methanol flow rate and 
density monitoring. The monitoring location would move from the current 
monitoring location for methanol flow rate and density where the 
rectified methanol stream enters the methanol storage tank to the 
outlet of the methanol storage tank for monitoring density and to the 
inlet of the methanol burners in the No. 2 and No. 4 recovery furnaces 
for monitoring flow rate. Because the average residence time for the 
tank contents is just under 8 days and the averaging period for 
determining compliance is based on a 15-day rolling average, EPA 
considers this method adequate for measuring the density and flow of 
the rectified methanol stream.

Abstract for [M190006]

    Q: Does EPA approve an alternative monitoring plan (AMP) request 
from Packaging Corporation of America (PCA), for periods when the wet 
scrubber is not engaged due to maintenance activities, to monitor on an 
hourly basis the natural gas and bark feed rates to the Riley 
Combination Boiler and the Combustion Engineering Combination Boiler at 
PCA's facility in Valdosta, Georgia subject to NESHAP subpart DDDDD, in 
lieu of monitoring wet scrubber flow rate, pressure drop, and pH?
    A: Yes. EPA conditionally approves the AMP for periods when only 
natural gas is fired in the boilers, provided that PCA demonstrates 
through existing data or emissions testing that the two boilers comply 
with the applicable particulate matter, mercury,and hydrogen chloride 
emission standards in NESHAP subpart DDDDD when the wet scrubber is not 
engaged.

Abstract for [M190007]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Prattville, Alabama 
(Prattville Mill) as the midpoint between the no-load amperage value 
and the lowest of the 1-hour average fan amperage values determined 
during compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Prattville Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Prattville Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M190008]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill (Savannah Mill) as the midpoint 
between the no-load amperage value and the lowest of the 1-hour average 
fan amperage values determined during compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Savannah Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Savannah Mill's scrubbers are 
addressed in the EPA response letter.

Abstract for [M190009]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Selma, Alabama (Riverdale 
Mill) as the midpoint between the no-load amperage value and the lowest 
of the 1-hour average fan amperage values determined during compliance 
testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Riverdale Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Riverdale Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M190010]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Redwood, Mississippi 
(Vicksburg Mill) as the midpoint between the no-load amperage value and 
the lowest of the 1-hour average fan amperage values determined during 
compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Vicksburg Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Vicksburg Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M190011]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Eastover, South Carolina 
(Eastover Mill) as the midpoint between the no-load amperage value and 
the lowest of the 1-hour average fan amperage values determined during 
compliance testing, for IP's Eastover Mill?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Eastover Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in

[[Page 10577]]

accordance with 40 CFR 63.864(j)(5)(i)(A) could cause reporting of 
deviations that do not represent exceedances of the applicable emission 
limits. The AMP conditions applicable to each of Eastover Mill's 
scrubbers are specified in the EPA response letter.

Abstract for [M190012]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Georgetown, South Carolina 
(Georgetown Mill) as the midpoint between the no-load amperage value 
and the lowest of the 1-hour average fan amperage values determined 
during compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Georgetown Mill. EPA agrees that fluctuations in 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest one-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Georgetown Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M190013]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Franklin, Virginia (Franklin 
Mill) as the midpoint between the no-load amperage value and the lowest 
of the 1-hour average fan amperage values determined during compliance 
testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Franklin Mill. EPA agrees that fluctuations in fan 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Franklin Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M190014]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
identify periods of no flow to the regenerative thermal oxidizer and 
packed-bed scrubber by using process data regarding the end and start 
of batch production runs in lieu of monitoring flow at the inlet or 
outlet of this control system installed on UPM Pharmaceuticals, Inc. 
(UPM's) batch-operated pharmaceuticals manufacturing facility in 
Bristol, Tennessee subject to NESHAP subpart GGG?
    A: Yes. Based on the information provided, EPA approves UPM's AMP 
for determining periods of no flow of emissions to the control system 
for the batch operation, for the purpose of removing periods of no flow 
when calculating daily average values of operating parameter averages 
for the control system. Because of the ductwork configuration at the 
facility, both process air and room air are collected and sent to the 
control system for reducing hazardous air pollutant (HAP) emissions; 
therefore, the air flow data at the inlet or outlet of the control 
system is not a reliable indicator of periods when there are no HAP 
emissions. EPA agrees with UPM's rationale for starting each period of 
no flow 15 minutes after the end of a batch, and UPM's plan to end each 
period of no flow when the next batch begins.

Abstract for [M190015]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper's Kraft pulp mill in Columbus, Georgia (Columbus 
Mill) as the midpoint between the no-load amperage value and the lowest 
of the 1-hour average fan amperage values determined during compliance 
testing?
    A1: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Columbus Mill. EPA agrees that fluctuations in fan 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Columbus Mill's scrubbers are 
specified in the EPA response letter.
    Q2: Does EPA also approve the AMP at Columbus Mill as an 
alternative to monitoring the pressure differential of the gas stream 
through the Ducon scrubbers installed on the smelt dissolving tanks 
which are also subject to NSPS subpart BB?
    A2: Yes. Based on the information provided, EPA approves the AMP in 
lieu of monitoring differential pressure monitoring required in 40 CFR 
60.282(b)(2)(i). Based on the operation of the Ducon scrubbers, fan 
amps are an appropriate alternative to pressure differential. The other 
requirements of subpart BB continue to apply.

Abstract for [M190016]

    Q1: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon UW-4 
scrubbers installed on the smelt dissolving tanks subject to NESHAP 
subpart MM at International Paper's Kraft pulp mill in Riegelwood, 
North Carolina (Riegelwood Mill) as the midpoint between the no-load 
amperage value and the lowest of the 1-hour average fan amperage values 
determined during compliance testing?
    A1: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Riegelwood Mill. EPA agrees that fluctuations in 
fan amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Riegelwood Mill's scrubbers are 
specified in the EPA response letter.
    Q2: Does EPA also approve the AMP at Riegelwood Mill as an 
alternative to monitoring the pressure differential of the gas stream 
through the Ducon scrubbers installed on the smelt dissolving tanks, 
which are also subject to NSPS subpart BB?
    A2: Yes. Based on the information provided, EPA approves the AMP in 
lieu of monitoring differential pressure monitoring required in 40 CFR 
60.282(b)(2)(i). Based on the operation of the Ducon scrubbers, fan 
amps are an appropriate alternative to pressure differential. The other 
requirements of subpart BB continue to apply.

Abstract for [M190017]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
determine compliance with net heating value requirements of a cascading 
flare system

[[Page 10578]]

at CITGO Petroleum Corporation's Lake Charles Manufacturing Complex 
(CITGO LCMC) in Lake Charles, Louisiana subject to NESHAP subpart CC, 
to monitor the net heating value of the primary flare in lieu of 
monitoring the net heating value of secondary flare B-107?
    A: Yes. Based on the information provided, EPA approves the AMP 
since monitoring the net heating value (NHV) at the primary flare will 
be comparable to monitoring the NHV at the secondary flare because the 
two flares are connected to a single flare gas header system such that 
discharges will be directed first to the primary flare. In addition, 
CITGO LCMC has elected to directly monitor the net heating value of the 
primary flare's vent gas following the methods provided in 40 CFR 
63.670(j)(3).

Abstract for [M190018]

    Q: Does EPA approve a waiver of the requirement to conduct 
triennial carbon monoxide (CO) performance tests under NESHAP subpart 
JJJJJJ due to the permanent cessation of coal use, for 18 boilers at 
nine facilities owned by Wisconsin Department of Administration (DOA) 
in Wisconsin subject to NESHAP subpart JJJJJJ?
    A: Yes. Based on the information provided, the applicable 
regulations, and pursuant to 40 CFR 63.7(h), EPA conditionally approves 
the performance testing waiver for each of the 18 boilers identified in 
the EPA response letter. For each boiler that no longer fires coal, DOA 
must continue to monitor the excess oxygen level in the flue gas, and 
if the 30-day rolling average oxygen level is below the minimum oxygen 
level determined from the performance tests conducted in 2017, DOA must 
report the exceedance to EPA. If DOA combusts coal in any of the 
boilers after April 30, 2020, then DOA must conduct the CO performance 
test required by subpart JJJJ within 30 days and thereafter as required 
by subpart JJJJJJ.

Abstract for [M190019]

    Q1: Does EPA determine that the final filtering step of a coating 
product to remove lumps/gels from the final product (epoxy dispersion 
process), which The Dow Chemical Company (Dow) is planning to start up 
at its facility in Midland, Michigan, meets the definition of 
``separation activity'' in NESHAP subpart HHHHH, such that NESHAP 
subpart HHHHH would not apply and the epoxy dispersion process would 
potentially be subject to NESHAP subpart FFFF?
    A1: No. Based on the information provided by Dow regarding the 
planned epoxy dispersion process, EPA determines that the specific 
epoxy dispersion process that Dow plans for its Midland, Michigan 
facility is not considered a ``separation activity'' under subpart 
HHHHH, therefore subpart HHHHH would potentially apply to Dow's planned 
epoxy dispersion process, and NESHAP subpart FFFF would not apply. If 
Dow uses HAP-containing materials in the process, or uses HAP-
containing cleaning solvents, the requirements of Subpart HHHHH would 
apply to the epoxy dispersion process.
    Q2: What is meant by ``separation activity'' in subpart HHHHH?
    A2: EPA is unable to answer Dow's broad question in this response 
regarding what is meant by ``separation activity'' in subpart HHHHH.

Abstract for [M190020]

    Q1: Does EPA approve test method modifications for EPA Reference 
Methods 5, 26A, and 29 of 40 CFR part 60, appendix A to use a 
Teflon[supreg] transfer line between the filter and the first impinger 
of the sampling train during comprehensive performance tests conducted 
using the three reference methods on Veolia ES Technical Solutions, 
LLC's (Veolia's) three hazardous waste incinerators (Unit #2, Unit #3, 
and Unit #4) in Illinois covered under NESHAP subpart EEE?
    A1: Yes. EPA conditionally approves Veolia's test method 
modifications for EPA Reference Methods 5, 26A, and 29, provided that 
Veolia takes certain precautions to preserve the samples' integrity as 
specified in the EPA response letter.
    Q2: Does EPA continue to approve Veolia's use of the fifteen test 
method modifications previously approved by EPA on November 16, 2009 
and June 15, 2011?
    A2: Yes. Because these test methods were previously approved by 
EPA, the methods may be used at Veolia's hazardous waste incinerators 
without any further action from EPA.

Abstract for [M190021]

    Q: Does EPA approve an alternative monitoring plan (AMP) for 
monitoring intermittent lime addition to Baghouse #1 installed on two 
Group 1 reverberatory aluminum melting furnaces (RMF #1 and RMF #2) in 
lieu of using a pulse jet fabric filter with continuous lime injection 
at Huntington Aluminum Incorporated's (HAI's) facility in Huntington, 
Indiana covered under NESHAP subpart RRR?
    A: No. Based on the information provided, EPA denies HAI's request 
for an AMP for intermittent lime injection because HAI did not provide 
assurances, through data and information, that the proposed 
intermittent lime addition monitoring procedure is adequate to ensure 
that all relevant emissions standards will be met on a continuous 
basis. Additionally, the emissions testing data that is available to 
the Agency is insufficient to support the proposed alternative.

Abstract for [M200001]

    Q: Does EPA approve the alternative monitoring plan (AMP) request 
from Nucor Steel Gallatin (Nucor) for the wet scrubber that controls 
hydrochloric acid emissions from a steel pickling line at the Nucor's 
facility in Ghent, Kentucky subject to NESHAP subpart CCC, because 
water is not provided at a continuous rate to this ``water-efficient'' 
scrubber?
    A: Yes. EPA conditionally approves Nucor's AMP for the scrubber 
because conductivity is determined to be an acceptable indicator for 
acid strength in a wet scrubber. Because temperature fluctuations can 
interfere with accurate conductivity measurement, Nucor must coordinate 
with the Kentucky Department of Air Quality to ensure that the accuracy 
of conductivity measurements can be assured if there are any 
temperature variations and, if needed, additional assurance 
requirements to account for temperature fluctuations be included in 
Nucor's permit.

Abstract for [M200002]

    Q1: Does EPA approve an alternative monitoring plan (AMP) for 
International Paper (IP) to conduct monitoring of opacity using a 
continuous opacity monitoring system (COMS) at a point in between the 
electrostatic precipitator (ESP) and wet scrubber in lieu of continuous 
parameter monitoring of the differential pressure, liquid flow rate, 
and scrubbing liquid supply pressure, for the wet scrubber installed to 
control particulate matter (PM) emissions for Lime Kiln No. 4 at IP's 
Riegelwood Mill in Riegelwood, North Carolina that is subject to NESHAP 
subpart MM and NSPS subpart BB, because the wet scrubber is not used to 
control emissions of PM?
    A1: Yes. Based on the description of the process, the vent gas 
streams, the design of the vent gas controls, and the proposed opacity 
monitoring furnished by IP, EPA conditionally approves the AMP. Since 
the wet scrubber is not serving as a PM control device and compliance 
is demonstrated before the wet scrubber, it is not necessary to monitor 
the PM operating parameters for the wet scrubber per NESHAP

[[Page 10579]]

subpart MM and NSPS subpart BB. IP must maintain proper operation of 
the ESP automatic voltage controller per the requirements of NESHAP 
subpart MM, perform compliance testing after the ESP and prior to the 
wet scrubber, and continue to conduct PM testing per the requirements 
of NESHAP subpart MM and NSPS subpart BB.
    Q2: Does EPA also approve under this AMP an alternative to the 
excess emissions criteria of NSPS Subpart BB, whereby excess emissions 
occur when the 6-minute average opacity measured by this COMS is 
greater than 20 percent and that a violation occurs when opacity 
exceeds 20 percent for one percent or more of the operating time in a 
semi-annual period?
    A2: Yes. Based on the excess emissions criteria furnished by IP, 
the EPA agrees that these are the conditions where excess emissions 
will occur.

Abstract for [M200003]

    Q: Does EPA approve use of an alternative monitoring plan (AMP) for 
New-Indy Catawba, LLC (New-Indy) to reduce the frequency of conducting 
leak detection and repair monitoring of any closed vent system, fixed 
roof cover, or enclosure that is characterized as unsafe or difficult 
to monitor at New-Indy's paper mill in Catawba, South Carolina that is 
subject to NESHAP subpart S?
    A: Yes. EPA conditionally approves use of an AMP if the owner or 
operator determines that personnel performing the inspections and 
monitoring would be exposed to an imminent or potential danger, or if 
the equipment could not be inspected without elevating the inspection 
or monitoring personnel more than two meters above a support surface. 
In lieu of the current 30-day visual inspections of closed vent system 
components and pulping condensate closed-collection system and annual 
inspections to verify there are no detectable emissions from closed 
vent system components and condensate storage tanks, the AMP requires 
monitoring or inspections to be conducted at least once every five 
years, or more frequently if possible. New-Indy must submit a site-
specific monitoring and inspection plan that identifies the equipment 
that are classified as unsafe or difficult to monitor and are therefore 
subject to the AMP, which we understand includes 0.4 percent of the 
leak detection and repair (LDAR) inspection points subject to Subpart 
S, including an explanation of why the component is unsafe to monitor 
or inspect and a description of how the equipment will be monitored or 
inspected during safe-to-monitor or safe-to-inspect periods, as 
described in 40 CFR 63.148(i)(1) and (2).

Abstract for [M200004]

    Q: Does EPA determine that operation of boilers SR4 and SR6 at the 
GSP Schiller LLC Station in Portsmouth, New Hampshire (GSP) to produce 
auxiliary steam (i.e., not producing electricity) qualifies as a 
startup operation under NESHAP subpart UUUUU?
    A: No. EPA determines that units SR4 and SR6 are not operating 
under startup conditions while burning residual fuel oil to produce 
auxiliary steam. For units SR4 and SR6, ``startup'' (as defined in 
subpart UUUUU) ends when steam is generated for any purpose, such as 
burning residual fuel oil to heat on-site residual fuel oil tanks or 
burning bituminous coal to generate electricity for sale.

Abstract for [M200005]

    Q: Does EPA determine that the lithium ion battery manufacturing 
process at LG Chem Michigan (Holland) in Holland, Michigan is subject 
to NESHAP subpart VVVVVV?
    A: No. Based on the information that was provided, EPA determines 
that the lithium ion battery manufacturing process is an area source 
subject to NESHAP subpart CCCCCCC. In accordance with 40 CFR 63.11607, 
Holland's description of their cathode mixing line meets the definition 
of ``paint and allied product manufacturing,'' the cathode slurry 
mixture produced by Holland meets the definition of ``paints and allied 
products,'' and the nickel used in the process meets the definition of 
``material containing hazardous air pollutant (HAP).''

Abstract for [M200006]

    Q: Does EPA approve an Alternative Monitoring Plan (AMP) for 
mercury (Hg) and chlorine (Cl) compliance testing to supplement the 
fuel types that result in worst-case Hg and Cl emissions (i.e., wood 
and tire-derived fuel (TDF)) with No. 6 fuel oil in order to reach 
maximum operating load during the performance test, but remove the heat 
input of the No. 6 fuel oil when calculating the maximum Hg and Cl 
concentrations on a lb/MMBtu basis as required in 40 CFR 63.7530(b)(1), 
for the No. 2 Combination Boiler at New-Indy Catawba, LLC (New-Indy's) 
paper mill in Catawba, South Carolina that is subject to NESHAP subpart 
DDDDD?
    A: Yes. Based on New-Indy's description of the process, equations 
for demonstrating compliance, and plans to maintain records of fuel 
usage following the performance test according to 40 CFR 63.7540(a)(2), 
EPA approves the AMP for New-Indy's No. 2 Combination Boiler only. The 
proposed calculations will conservatively represent the highest input 
amounts of Cl and Hg during the compliance testing while firing bark, 
TDF. and No. 6 fuel oil because they account for the emissions 
resulting from the combustion of No. 6 fuel oil without providing 
credit for the heat input associated with No. 6 fuel oil.

Abstract for [M200007]

    Q: Does EPA determine that a thermal chip dryer operated at 660 
degrees Fahrenheit in order to remove water from aluminum shreds 
containing paint is not an affected source under NESHAP subpart RRR at 
Matalco (US), Inc.'s (Matalco's) secondary aluminum production facility 
in Lordstown, Ohio?
    A: No. Based on the information provided, EPA determines that the 
thermal chip dryer operated in the proposed manner would be an affected 
source under NESHAP subpart RRR, consistent with the operations of a 
``scrap dryer/delacquering kiln/decoating kiln'' as defined under 
subpart RRR and according to the record of subpart RRR. Further, 
Matalco does not sufficiently address the temperature level that would 
assure no emissions of hazardous air pollutants (HAPs), to support 
their belief that no hydrocarbon or dioxins/furans emissions would be 
produced while operating the dryer at 660 degrees Fahrenheit. During 
periods when the thermal chip dryer is processing aluminum shreds 
containing paint at or near 660 [deg]F, the dryer must comply with the 
major source requirements in subpart RRR for a scrap dryer/delacquering 
kiln/decoating kiln.

Abstract for [M200008]

    Q: Does EPA approve an alternative plan (AMP) to establish the fan 
amperage operating limits for the Ducon scrubbers installed on the 
smelt dissolving tanks subject to NESHAP subpart MM at International 
Paper Company's Kraft pulp mill in Bogalusa, Louisiana (Bogalusa Mill) 
as the midpoint between the no-load amperage value and the lowest of 
the 1-hour average fan amperage values determined during compliance 
testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Bogalusa Mill. EPA agrees that fluctuations in fan 
amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance

[[Page 10580]]

with 40 CFR 63.864(j)(5)(i)(A) could cause reporting of deviations that 
do not represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Bogalusa Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M200009]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon scrubbers 
installed on the smelt dissolving tanks subject to NESHAP subpart MM at 
International Paper Company's Kraft pulp mill in Mansfield, Louisiana 
(Mansfield Mill) as the midpoint between the no-load amperage value and 
the lowest of the 1-hour average fan amperage values determined during 
compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Mansfield Mill. EPA agrees that fluctuations in 
fan amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions applicable to each of Mansfield Mill's scrubbers are 
specified in the EPA response letter.

Abstract for [M200015]

    Q: Does EPA agree with the American Petroleum Institute (API) that 
the Petroleum Refinery MACT Subpart CC, paragraphs 63.670 (d) and (e) 
mean that the NHVcz requirements only apply starting with the block 
that contains the 15th minute of a flare event and do not apply to the 
previous 15-minute block during which the event started which would not 
include more than a fraction of flow in that period?
    A: Yes. The MACT CC regulation, paragraphs 63.670 (d) and (e) both 
state that the source must comply with applicable limits of combustion 
zone heat content and velocity when regulated materials are routed to 
the flare for at least 15 minutes. Therefore, the limits apply starting 
with the 15-minute block that includes a full 15 minutes of the flaring 
event. EPA recognizes that compliance with limits during the first 15-
minute block of a flaring event could be problematic, at least for 
meeting the NHVcz minimum because if the release is of low BTU gas, a 
source might not have time to adjust supplement natural gas and/or 
adjust steam or air to correct the NHVcz, especially if the event 
starts late in the 15-minute block.

Abstract for [Z190001]

    Q: Does EPA approve an alternative monitoring plan (AMP) to conduct 
performance testing at the highest achievable engine load and 
demonstrate continuous compliance via pressure differential (i.e. 
pressure drop) measurements across the catalyst at plus or minus 10 
percent of the highest achievable engine load established during the 
performance test, for twenty-four of Red Cedar Gathering Company's (Red 
Cedar's) stationary reciprocating internal combustion engines installed 
at five compressor stations (i.e., Midway, Ponderosa, Spring Creek, 
Sambrito, and Trail Canyon) located on the Southern Ute Indian 
Reservation in Colorado subject to NESHAP subpart ZZZZ?
    A: Yes. Based on information provided by Red Cedar regarding 
declining field conditions that necessitate engine operation at lower 
loads, EPA conditionally approves the AMP for the twenty-four engines 
identified in Table 1 of the EPA response letter. For each of the 
twenty-four engines, Red Cedar must maintain records on a daily basis 
of the engine load, and if an engine load increases or decreases by 10 
percent from the highest achievable engine load during the performance 
test, Red Cedar must re-test and re-establish the baseline pressure 
drop across the catalyst.

Abstract for [Z200002]

    Q: Does EPA approve an alternative monitoring plan (AMP) to 
establish the fan amperage operating limits for the Ducon UW-4 
scrubbers installed on the smelt dissolving tanks subject to NESHAP 
subpart MM at Georgia-Pacific's Kraft pulp mill in Cedar Springs, 
Georgia (Cedar Springs Mill) as the midpoint between the no-load 
amperage value and the lowest of the 1-hour average fan amperage values 
determined during compliance testing?
    A: Yes. Based on the information provided, EPA conditionally 
approves the AMP for Cedar Springs Mill. EPA agrees that fluctuations 
in amperage for a constant speed fan are a function of atmospheric 
conditions, rather than of scrubber performance; therefore, setting the 
fan amperage limit at the lowest 1-hour average fan amperage value 
based on compliance testing in accordance with 40 CFR 
63.864(j)(5)(i)(A) could cause reporting of deviations that do not 
represent exceedances of the applicable emission limits. The AMP 
conditions for each of Cedar Springs Mill's scrubbers are specified in 
the EPA response letter.

Abstract for [Z200003]

    Q: Does EPA approve an alternative monitoring plan (AMP) during 
periods of annual regenerative thermal oxidizer (RTO) shut down for 
maintenance and production curtailment for Group 2 asphalt storage 
tanks at CertainTeed's asphalt roofing manufacturing facility in 
Shakopee, Minnesota subject to NESHAP subpart LLLLL, to use a digital 
camera opacity technique (DCOT) or conduct EPA Method 9 and 22 testing 
on mist eliminators in lieu of parametric monitoring of mist 
eliminators or regenerative thermal oxidizers (RTOs)?
    A: Yes. Based on the information provided, EPA conditionally 
approves an AMP for Group 2 asphalt storage tanks 1 through 6 and 11 
(hereafter referred to as ``AMP tanks'') for periods up to 1,000 hours 
of RTO shutdown due to maintenance outage or production curtailment 
(where only AMP tanks are in operation) if no parametric monitoring is 
conducted on the mist eliminator; otherwise, CertainTeed must use a 
mist eliminator in series with an RTO and monitor RTO operating 
parameters to comply with the particulate matter standards in subpart 
LLLLL for the AMP tanks. Specifically, for RTO shutdown periods up to 
750 hours, CertainTeed must use EPA Method 9 and/or EPA Method 22; and 
for RTO shutdown periods between 751 and 1,000 hours, CertainTeed must 
use the DCOT method outlined in Section 9.2 of the ASTM D7520-2016. 
Alternatively, CertainTeed may use the DCOT method for an entire 
shutdown period up to 1,000 hours. If DCOT is used, CertainTeed must 
monitor once a shift or twice daily for a continuous 6-minute period 
and retain records for 5 years of the date, start time, end time, 
operator's name, and results for the readings and pictures. Otherwise, 
CertainTeed must conduct a six-minute Method 9 reading on the first day 
of shutdown and for each subsequent day a six-minute Method 9 or 22 
reading once a shift or twice during daylight hours, and retain the 
original copies of the Method 9 and/or Method 22 sheets for 5 years. 
Any readings indicating emissions above the zero-opacity standard must 
be reported as deviations. The number of hours of RTO shutdown time 
must be tracked on a 12-month rolling sum. Further, during RTO shutdown 
periods, there may be no loading or unloading of AMP tanks, and the 
temperature of AMP tanks may not exceed 450 degrees Fahrenheit.

Abstract for [Z200004]

    Q: Does EPA determine that frit production processes owned by 
Prince

[[Page 10581]]

Minerals, LLC (Prince) in Leesburg, Alabama meet the applicability 
criteria of NESHAP subparts BBBBBBB, CCCCCCC, and/or VVVVVV?
    A: Based on the information provided, EPA determines that Prince's 
frit production processes meet the applicability criteria of subpart 
CCCCCCC and do not meet the applicability criteria for subparts BBBBBBB 
and VVVVVV. Subpart CCCCCCC is applicable to Prince's facility because 
the subpart lists NAICS code 3255 and defines ``paints and allied 
products manufacturing'' as the production of paints and allied 
products (e.g., coatings) intended to ``leave a dried film of solid 
material on a substrate,'' and the subpart defines ``material 
containing HAP'' as including any material containing nickel in amounts 
greater than 0.1 percent by weight. Subpart BBBBBBB defines ``chemical 
preparation'' as being manufactured in a process described by the NAICS 
code 325998, so subpart BBBBBBB is not applicable. Subpart VVVVVV 
includes an applicability exclusion for sources subject to Subpart 
CCCCCCC, so subpart VVVVVV is not applicable.

Abstract for [Z200005]

    Q: Does EPA approve an alternative monitoring plan (AMP) for six 
reciprocating internal combustion engines (RICEs) operating at less 
than 100 percent maximum load during compliance testing at Kinder 
Morgan Natural Gas Pipeline's Houston Central Gas Plant in Sheridan, 
Texas subject to NESHAP subpart ZZZZ?
    A: Yes. Based on the information provided, EPA conditionally 
approves an AMP to conduct performance testing for engines COMP-1, 
COMP-35, and COMP-13C at a maximum engine load of 85 percent with 
subsequent monitoring required at 85 percent plus or minus 10 percent 
load, and for engines COMP-349, COMP-350, and COMP-8 at a maximum 
engine load of 90 percent with subsequent monitoring required at 90 
percent plus or minus 10 percent load. EPA agrees that these six RICEs 
cannot operate at 100 percent plus or minus 10 percent operational load 
during compliance testing as specified in 40 CFR 63.6620(b)(2) due to 
site-specific operations. If operations change such that the maximum 
load of the engines exceeds these alternative lower maximum loads, the 
AMP will become null and void and retesting at the higher engine load 
will be required to demonstrate compliance with subpart ZZZZ.

John Dombrowski,
Deputy Director, Office of Compliance, Office of Enforcement and 
Compliance Assurance.
[FR Doc. 2021-03489 Filed 2-19-21; 8:45 am]
BILLING CODE 6560-50-P


