Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 132 - GRAPHIC ARTS - ROTOGRAVURE AND FLEXOGRAPHY › Appendix 096-132-A - VOLATILE ORGANIC COMPOUNDS TEST METHODS AND COMPLIANCE PROCEDURES

Current through 2024-29, July 17, 2024
VOLATILE ORGANIC COMPOUNDS PROCEDURE A
Test Methods and Compliance Procedures: General
				  Provisions.
(a) Test methods. The owner or operator of any volatile
				  organic compound (VOC) source required to comply with Chapters 129 and 132
				  shall, at the owner's or operator's expense, demonstrate compliance by using
				  the methods of Procedures A-H of this subpart or alternative methods that are
				  approved by the Department and EPA as part of a State Implementation Plan (SIP)
				  revision and shall meet all the requirements of these regulations.
(b) Preparation of test plan and quality assurance program.
				  At least 30 days before the initiation of a required test the owner or operator
				  shall submit a test plan that shall be approved by the Department before the
				  results of the test are considered acceptable. This test plan shall include the
				  following minimum information:
(1) The purpose of the proposed test and the applicable
				  regulation;
(2) A detailed description of the facility to be tested,
				  including a line diagram of the facility, locations of test sites, and facility
				  operation conditions for the test;
(3) A detailed description of the proposed test methods and
				  procedures, equipment, and sampling sites;
(4) A time table for the following:
(i) Date for the compliance test;
(ii) Date for submittal of final test report to the
				  Department (not later than 45 days after completion of on-site
				  sampling);
(5) Proposed corrective actions should the test results show
				  noncompliance;
(6) Internal QA program. The internal quality assurance (QA)
				  program shall include, at a minimum, the activities planned by routine
				  operators and analysts to provide an assessment of test data precision. An
				  example of internal QA is the sampling and analysis of replicable samples;
				  and
(7) External QA program.
(i) The external QA program shall include, at a minimum,
				  application of plans for a test method performance audit (PA) during the
				  compliance test.
(ii) The external QA program may also include systems audits,
				  which include the opportunity for on-site evaluation by the Department of
				  instrument calibration, data validation, sample logging, and documentation of
				  quality control data and field maintenance activities.
(iii) The PA shall consist of blind audit samples provided by
				  the Department and analyzed during the compliance test to provide a measure of
				  test data bias.
(A) The Department shall require the owner or operator to
				  analyze PA samples during each compliance test when audit samples are
				  available.
(B) Information concerning the availability of audit
				  materials for a specific compliance test may be obtained by contacting the
				  Emission Measurement Technical Information Center at (919) 541-2237.
(C) If the Department has prior knowledge that an audit
				  material is available, the Department may contact the Atmospheric Research and
				  Exposure Assessment Laboratory directly at (919) 541-4531 (for cylinder gas
				  audit materials) or (919) 541-7834 (for all other types of audit
				  materials).
(D) The evaluation criteria applied to the interpretation of
				  the PA results and the subsequent remedial actions required of the owner or
				  operator are the sole responsibility of the Department.
(c) Process operation. The owner or operator shall be
				  responsible for providing:
(1) Sampling ports, pipes, lines, or appurtenances for
				  collecting samples and data required by the test methods and procedures;
(2) Safe access to the sample and data collection locations;
				  and
(3) Light, electricity, and the utilities required for sample
				  and data collection.
(d) Final report. No later than 45 days after completion of
				  the on-site sampling, the owner or operator shall submit a test report to the
				  Department. The test report shall include the following minimum information:
(1) Process description;
(2) Air pollution capture system and control device
				  description;
(3) Process conditions during testing;
(4) Test results and example calculations;
(5) Description of sampling locations and test
				  methods;
(6) Quality assurance measures; and
(7) Field and analytical data.
VOLATILE ORGANIC COMPOUNDS PROCEDURE B
Test Methods and Compliance Procedures: Determining the
				  Volatile Organic Compound (VOC) Content of Coatings and Inks
(a) Sampling procedures shall follow the guidelines presented
				  in "Standard Procedure for Collection of Coating and Ink Samples for VOC
				  Content Analysis by Reference Method 24 and Reference Method 24A,"
				  EPA-340/1-91-010.
(b) The analytical methods and procedures specified below
				  shall be used to determine the VOC content of each coating, as applied:
(1)
(i) Method 24 of 40 CFR Part 60, Appendix A, shall be used to
				  determine total volatile content, water content, and density of coatings. For
				  determining total volatile content, all samples shall be oven-dried at
				  110[DEGREE]C for 1 hour.
(ii) To determine the total volatile content, water content,
				  and density of multicomponent coatings, the following procedures shall be used
				  in addition to Method 24 of 40 CFR Part 60, Appendix A:
(A) The components shall be mixed in a storage container in
				  the same proportions as those in the coating, as applied. The mixing shall be
				  accomplished by weighing the components in the proper proportion into a
				  container that is closed between additions and during mixing. About 100
				  milliliters (ml) of coating shall be prepared in a container just large enough
				  to hold the mixture prior to withdrawing a sample;
(B) For determining volatile content, a sample shall be
				  withdrawn from the mixed coating and then transferred to a dish where the
				  sample shall stand for at least 1 hour, but no more than 24 hours, prior to
				  being oven-dried at 110[DEGREE]C for 1 hour; and
(C) For determining the water content and density of
				  multicomponent coatings, samples shall be taken from the same 100-ml mixture of
				  coating and shall be analyzed by the appropriate ASTM methods referenced in
				  Method 24 of 40 CFR Part 60, Appendix A;
(2) Method 24 of 40 CFR Part 60, Appendix A, shall be used in
				  determining total volatile content, water content, and density of any
				  flexographic or packaging rotogravure printing ink and related coatings.
				  Alternatively, Method 24A of 40 CFR Part 60, Appendix A, may be used;
(3) Method 24A of 40 CFR Part 60, Appendix A, shall be used
				  in determining total volatile content, water content, and density of any
				  publication rotogravure printing ink and related coatings; and
(4) The following additional procedure shall be used in
				  analyzing a coating sample: "Standard Procedure for Analysis of Coating and Ink
				  Samples," EPA-340/1-91-011.
(c) Use of adaptations to test methods. Use of an adaptation
				  to any of the analytical methods specified in paragraph (b) of this section
				  shall be approved by the Department and EPA on a case-by-case basis. An owner
				  or operator shall submit sufficient documentation for the Department to find
				  that the analytical methods specified in paragraphs (b)(1), (b)(2), and (b)(3)
				  will yield inaccurate results and that the proposed adaptation is
				  appropriate.
(d) Each sample collected for analysis shall meet the
				  following criteria:
(1) Each sample shall be at least 250 ml (8 ounces [oz])
				  taken into a 250-ml (8-oz) container at a location and time such that the
				  sample will be representative of the coating or ink, as applied (i.e., the
				  sample shall include any dilution solvent or VOC added during the manufacturing
				  process);
(2) If a sample larger than 250 ml (8 oz) is obtained, the
				  sample container shall be of a size such that the sample completely fills the
				  container;
(3) The container shall be tightly sealed immediately after
				  the sample is taken;
(4) Any solvent or other VOC added after the sample is taken
				  shall be measured and accounted for in the calculations in paragraph (e) of
				  this section; and
(5) For multicomponent coatings, separate samples of each
				  component shall be obtained.
(e) Calculations for determining the VOC content of coatings
				  and inks from data as determined by Method 24 or 24A of 40 CFR Part 60,
				  Appendix A, shall follow the guidance provided in the following
				  documents:
(1) "A Guideline for Surface Coating Calculations,"
				  EPA-340/1-86-016; and
(2) "Procedures for Certifying Quantity of Volatile Organic
				  Compounds Emitted by Paint, Ink and Other Coatings," (Revised June 1986)
				  EPA-450/3-84-019.
VOLATILE ORGANIC COMPOUNDS PROCEDURE C
Test Methods and Compliance Procedures: Alternative
				  Compliance Methods for Surface Coating of Cans, Fabric, Vinyl, Metal Furniture
				  and Miscellaneous Metal Products and Graphic Arts
(a) Daily-weighted average. The daily-weighted average VOC
				  content, in units of mass of VOC per unit volume of coating, excluding water
				  and exempt compounds, as applied, of the coatings used on a day on a coating
				  unit, line, or operation shall be calculated using the following equation:
Click here
				  to view Image
where:
VOCw = The daily-weighted average VOC content of the
				  coatings, as applied, used on a coating unit, line, or operation in units of
				  kilograms of VOC per liter of coating (kg VOC/liter) or pounds of VOC per
				  gallon of coating (lb VOC/gal), excluding water and exempt compounds;
n = The number of different coatings, as applied, each day on
				  a coating unit, line, or operation;
Vi = The volume of each coating, as applied, each day on a
				  coating unit, line, or operation in units of liters or gallons, excluding water
				  and exempt compounds;
Ci = The VOC content of each coating, as applied, each day on
				  a coating unit, line, or operation in units of kg VOC/liter of coating or (lb
				  VOC/gal), excluding water and exempt compounds; and
VT = The total volume of all coating, as applied, each day on
				  a coating unit, line, or operation in units of liters or gallons, excluding
				  water and exempt compounds.
(b) Overall emission reduction efficiency for control
				  systems. The overall emission reduction efficiency needed to demonstrate
				  compliance is determined each day as follows:
(1) Obtain the emission limitation from the applicable
				  section of this subpart;
(2) Calculate the emission limitation on a solids basis
				  according to the following equation:
Click
				  here to view Image
where:
S = The VOC emission limitation in terms of kg VOC/liter of
				  coating solids or (lb VOC/gal);
C = The VOC emission limitation in terms of kg VOC/liter of
				  coating or (lb/gal), excluding water and exempt compounds; and
d = The density of VOC for converting emission limitation to
				  a solids basis. The density equals 0.882 kg/liter (7.36 lb/gal);
(3) Calculate the required overall emission reduction
				  efficiency of the control system for the day according to the following
				  equation:
Click here
				  to view Image
where:
E = The required overall emission reduction efficiency of the
				  control system for the day;
VOCa = (1) The maximum VOC content of the coatings, as
				  applied, used each day on the subject coating unit, line, or operation, in
				  units of kg VOC/liter of coating solids or (lb VOC/gal), as determined by the
				  applicable test methods and procedures specified in Procedure B, or
(2) The daily-weighted average VOC content, as applied, of
				  the coatings used each day on the subject coating unit, line, or operation, in
				  units of kg VOC/liter of coating solids or (lb VOC/gal), as determined by the
				  applicable test methods and procedures specified in Procedure B and the
				  procedure in paragraph (c)(4) of this section; and S = VOC emission limitation
				  in terms of kg VOC/liter of coating solids or (lb VOC/gal); and
(4) The daily-weighted average VOC content, as applied, of
				  the coatings used on a coating unit, line, or operation in units of mass of VOC
				  per unit volume of coating solids shall be calculated by the following
				  equation:
Click
				  here to view Image
where:
VOCws = The daily-weighted average VOC content, as applied,
				  of the coatings used on a coating unit, line, or operation in units of mass of
				  VOC per unit volume of coating solids;
n = The number of different coatings, as applied, used in a
				  day on a coating unit, line, or operation;
Vi = The volume of each coating (i), as applied, used in a
				  day on a coating unit, line, or operation in units of liters or gallons;
Wvoci = The weight fraction of VOC in each coating (i), as
				  applied, used in a day on a coating unit, line, or operation in units of kg
				  VOC/kg coating or (lb/lb);
Di = The density of each coating (i) as applied, used in a
				  day on a coating unit, line, or operation in units of kg coating/liter of
				  coating or (lb/gal); and
VSi = The volume fraction solids content of each coating (i),
				  as applied, used in a day on a coating unit, line, or operation in units of
				  liters solids/liter coating or (gal/gal).
VOLATILE ORGANIC COMPOUNDS PROCEDURE D
Compliance Test Methods Surface Coating of Flatwood
				  Paneling Products
(a) Test methods. The test methods found in this paragraph
				  and in Procedures A, B & E shall be used to determine compliance with
				  surface coating of flatwood paneling products.
(b) Overall emission reduction efficiency for control
				  systems. The required overall emission reduction efficiency of the control
				  system for the day shall be calculated according to the following equation:
Click
				  here to view Image
where:
E = The required overall emission reduction efficiency of the
				  control system for the day;
VOCa = The maximum VOC content of the coatings, as applied,
				  used each day on a coating line in units of kg VOC/100
				  m2 of surface area coated or (lb VOC/1,000
				  ft2), as determined by the applicable test methods
				  and procedures specified in Procedure B; and
S = VOC emission limitation in terms of kg VOC/100
				  m2 of surface area coated or (lb VOC/1,000
				  ft2).
VOLATILE ORGANIC COMPOUNDS PROCEDURE E
Test Methods and Compliance Procedures: Emission
				  Capture and Destruction or Removal Efficiency and Monitoring
				  Requirements.
(a) Determining the efficiency of volatile organic compound
				  (VOC) capture systems.
(1) For purposes of this paragraph, the following definitions
				  and abbreviations apply:
"Gas/gas method" means either of two methods for determining
				  capture that rely only on gas phase measurements. One method requires
				  construction of a temporary total enclosure (TTE) to ensure all potential
				  fugitive emissions are measured while the other method uses the room or
				  building that houses the source as an enclosure.
"Hood" means a partial enclosure or canopy for capturing and
				  exhausting, by means of a draft, the organic vapors or other fumes rising from
				  a coating process or other source.
"Liquid/gas method" means either of two methods for
				  determining capture that require both gas phase and liquid phase measurements
				  and analysis. One liquid/gas method requires construction of a temporary
				  enclosure, and the other uses the building or room that houses the facility as
				  an enclosure.
"Process line" means any coating unit, coating line, coating
				  operation, or printing press.
"PTE" is a permanent total enclosure, which contains a
				  process that emits VOC and meets the specifications given in Chapter 126
				  Appendix A Procedure T.
"TTE" is a temporary total enclosure that is built around a
				  process that emits VOC and meets the specifications given in Chapter 126
				  Appendix A Procedure T.
"BE" is a building or room enclosure that contains a process
				  that emits VOC. If a BE is to substitute for a PTE or TTE, the appropriate
				  requirements given in Chapter 126 Appendix A Procedure T shall be met.
(2) Applicability.
(i) The requirements of paragraph (a)(3) shall apply to all
				  regulated VOC emitting processes using a control system except as provided
				  below.
(ii) If a source owner or operator installs a PTE that meets
				  EPA specifications, and that directs all VOC to a control device, the capture
				  efficiency is assumed to be 100 percent, and the source is exempted from the
				  requirements described in paragraph (a)(3). Chapter 126 Appendix A Procedure T
				  shall be used to determine whether a structure is a PTE. This does not exempt a
				  source from performing any control device efficiency testing required under
				  this subpart. In addition, a source shall demonstrate that all criteria for a
				  PTE are met during the testing for capture efficiency.
(iii) If a source owner or operator uses a control device
				  designed to collect and recover VOC (e.g., carbon adsorber), an explicit
				  measurement of capture efficiency is not necessary if the conditions given
				  below are met. The overall emission reduction efficiency of the control system
				  shall be determined each day by directly comparing the input liquid VOC
				  (liters) to the recovered liquid VOC. The procedure for use in this situation
				  is specified in
				  40 CFR
				  60.433 with the following modifications:
(A) The source owner or operator shall obtain data each day
				  for the solvent usage and solvent recovery and determine the solvent recovery
				  efficiency of the system each day using a 7-day rolling period. The recovery
				  efficiency for each day is computed as the ratio of the total recovered solvent
				  for that day and the prior 6 consecutive operating days to the total solvent
				  usage for the same 7-day period used for the recovered solvent, rather than a
				  30-day weighted average as given in
				  40 CFR
				  60.433. This ratio shall be expressed as a
				  percentage. This shall be done within 72 hours following each 24-hour period,
				  and
(B) If the solvent recovery system controls multiple process
				  lines, the source owner or operator shall demonstrate that the overall control
				  (i.e., the total recovered solvent VOC divided by the sum of liquid VOC input
				  to all process lines venting to the control system) meets or exceeds the most
				  stringent standard applicable for any process line venting to the control
				  system.
(3) Specific Requirements.
(i) The capture efficiency shall be measured using one of the
				  four protocols given in paragraphs (a)(3)(iii)(A) through (a)(3)(iii)(D) of
				  this section. During any capture efficiency test, the average face velocity of
				  each emissions collection point ducted to the control device shall be measured
				  and recorded. In addition, the distance between each collection point ducted to
				  the control device and the emission source shall be measured and recorded.
				  Measurements of average face velocity shall be done by determining average
				  volumetric flow rate using Reference Method 2, 2A or 2C of 40 CFR Part 60,
				  Appendix A and dividing by the total area of the face of the collection
				  point.
(ii) Any error margin associated with a test protocol may not
				  be incorporated into the results of a capture efficiency test.
(iii) Any source required to comply with this section shall
				  use one of the following protocols to measure capture efficiency, unless a
				  suitable alternative protocol is approved by the Department and EPA:
(A) Gas/gas method using TTE. Chapter 126 Appendix A
				  Procedure T shall be used to determine whether a temporary enclosure is a TTE.
				  The capture efficiency equation to be used for this protocol is:
Click
				  here to view Image
where:
CE = capture efficiency, decimal fraction;
Gw = mass of VOC captured and delivered to control device
				  using a TTE; and
Fw = mass of fugitive VOC that escapes from a TTE.
Chapter 126 Appendix A procedures are used to obtain Fw &
				  Gw.
(B) Liquid/gas method using TTE. Chapter 126 Appendix A
				  Procedure T shall be used to determine whether a temporary enclosure is a TTE.
				  The capture efficiency equation to be used for this protocol is:
Click
				  here to view Image
where:
CE = capture efficiency, decimal fraction;
L = mass of liquid VOC input to process; and
F = mass of fugitive VOC that escapes from a TTE.
Chapter 126 Appendix A procedures are used to obtain L and
				  F.
(C) Gas/gas method using the building or room (BE) in which
				  the source is located as the enclosure and in which G and F are measured while
				  operating only the source to be tested. All fans and blowers in the building or
				  room shall be operated as they would be under normal production. The capture
				  efficiency equation to be used for this protocol is:
Click here
				  to view Image
where:
CE = capture efficiency, decimal fraction;
G = mass of VOC captured and delivered to a control device;
				  and
FB = mass of fugitive VOC that escapes from building
				  enclosure.
Chapter 126 Appendix A procedures are used to obtain G and
				  FB.
(D) Liquid/gas method using the building or room (BE) in
				  which the source is located as the enclosure and in which L and F are measured
				  while operating only the source to be tested. All fans and blowers in the
				  building or room shall be operated as they would under normal production. The
				  capture efficiency equation to be used for this protocol is:
Click here
				  to view Image
where:
CE = capture efficiency, decimal fraction;
L = mass of liquid VOC input to process; and
FB = mass of fugitive VOC that escapes from building
				  enclosure.
Chapter 126 Appendix A procedures are used to obtain L and
				  FB.
(4) Recordkeeping and Reporting.
(i) All sources complying with this section shall maintain on
				  file a copy of the capture efficiency protocol submitted to the Department. All
				  results of appropriate test methods and CE protocols shall be reported to the
				  Department within 60 days of the test date. A copy of the results shall be kept
				  on file with the source.
(ii) If any changes are made to capture or control equipment,
				  the source is required to notify the Department in writing within 30 days of
				  these changes and a new capture efficiency and/or control device destruction or
				  removal efficiency test may be required. A change to the capture or control
				  equipment shall be defined as any modification to or malfunction of the capture
				  system or control system that increases the distance between any emissions
				  collection point and the emissions source that the collection point is serving
				  or that reduces the average face velocity at any emissions collection point
				  ducted to the control device to a value less than 90% of the value measured and
				  recorded during the capture efficiency test. Reduction in the air flow at a
				  collection point that occurs because the emission source that the collection
				  point is serving is not being utilized shall not be considered a change
				  requiring Department notification. Measurements of average face velocity shall
				  be done at all collection points whenever any physical changes are made to the
				  capture system.
The source must notify the Department 30 days prior to
				  performing any capture efficiency and/or control efficiency tests.
(b) Determining the destruction or removal efficiency of
				  incinerators and carbon adsorbers.
(1) Testing.
(i) The control device destruction or removal efficiency
				  shall be determined from data obtained by simultaneously measuring the inlet
				  and outlet gas-phase VOC concentrations and gas volumetric flow rates in
				  accordance with the gas-phase test methods specified in this Appendix. The
				  control device destruction or removal efficiency shall be calculated using the
				  following equation:
Click
				  here to view Image
where:
E = VOC destruction efficiency of the control device;
Qi = Volumetric flow rate of the effluent gas flowing through
				  stack i entering the control device, dry standard cubic meters per hour
				  (dscm/hr);
Ci = Concentration of VOC (as carbon) in the effluent gas
				  flowing through stack i entering the control device, parts per million by
				  volume (ppmv);
Qj = Volumetric flow rate of the effluent gas flowing through
				  stack j leaving the control device, dscm/hr;
Cj = Concentration of VOC (as carbon) in the effluent gas
				  flowing through stack j leaving the control device, ppmv;
n = The number of vents to the control device; and
m = The number of vents after the control device.
(ii) A source using a PTE (or a BE as a PTE) shall
				  demonstrate that this enclosure meets the requirements given in Chapter 126
				  Appendix A Procedure T for a PTE during any testing of a control device.
(iii) A source using a TTE (or a BE as a TTE) shall
				  demonstrate that this enclosure meets the requirements given in Chapter 126
				  Appendix A Procedure T for a TTE during testing of a control device. The source
				  shall also provide documentation that the quality assurance criteria for a TTE
				  have been achieved.
(2) Monitoring.
(i) Any owner or operator who uses an incinerator or
				  regenerative carbon adsorber to comply with any part of this subpart shall
				  install, calibrate, certify to the Department, operate, and maintain continuous
				  monitoring equipment. The continuous monitoring equipment shall monitor the
				  following parameters:
(A) Combustion chamber temperature of each thermal
				  incinerator or afterburner;
(B) Temperature rise immediately before the catalyst bed and
				  across each catalytic incinerator bed; and
(C) The VOC concentration of the outlet from each carbon
				  adsorption bed.
(ii) The continuous temperature monitoring equipment must be
				  equipped with a continuous recorder and have an accuracy of n1 percent of the
				  combustion temperature being measured expressed in degrees Celsius ([DEGREE]C)
				  or n0.5[DEGREE]C, whichever is greater.
(iii) The owner or operator shall ensure that the quality
				  assurance measures in Procedure H and the quality control procedures in
				  Procedure F are met.
(c) Determining the overall emission reduction efficiency.
				  The overall emission reduction efficiency of the emission control system shall
				  be determined each day as the product of the capture efficiency, as determined
				  using the capture efficiency test method in Chapter 126 Appendix A and the
				  control device destruction or removal efficiency; or for each solvent recovery
				  system, by the test protocol described in paragraph (a)(2)(iii)(A) of this
				  section for comparing liquid input to liquid VOC recovery. The results of the
				  capture efficiency test and control device destruction or removal efficiency
				  test remain valid for each day until a subsequent test is performed. The
				  results of any valid test may be used for each day until superseded by the
				  results of a valid test subsequently performed.
VOLATILE ORGANIC COMPOUNDS PROCEDURE F
Test Methods and Compliance Procedures: Determining the
				  Destruction or Removal Efficiency of a Control Device.
(a) Depending upon the conditions at a test site, one of the
				  following test methods from 40 CFR Part 60, Appendix A, must be used to
				  determine volatile organic compound (VOC) concentrations of a gas stream at the
				  inlet and outlet of a control device:
(1) Method 18;
(2) Method 25; or
(3) Method 25A.
(b) The method selected shall be based on consideration of
				  the diversity of organic species present and their total concentration and on
				  consideration of the potential presence of interfering gases. Because of the
				  different response factors for the many organic compounds formed during the
				  combustion process, only Method 25, which measures VOC as carbon, may be used
				  for determining destruction efficiency of incinerators or catalytic
				  incinerators, except in cases where the allowable outlet VOC concentration of
				  the control device is less than 50 ppm as carbon, in which case Method 25A
				  should be used.
(c) Except as indicated in paragraphs (c)(1) and (2) of this
				  section, a test shall consist of three separate runs, each lasting a minimum of
				  60 minutes (min), unless the Department determines that process variables
				  dictate shorter sampling times.
(1) When the method is to be used to determine the efficiency
				  of a fixed-bed carbon adsorption system with a common exhaust stack for all of
				  the individual adsorber vessels, the test shall consist of three separate runs,
				  each coinciding with one or more complete sequences through the adsorption
				  cycles of all the individual adsorber vessels.
(2) When the method is to be used to determine the efficiency
				  of a fixed-bed carbon adsorption system with individual exhaust stacks for each
				  adsorber vessel shall be tested individually. The test for each adsorber vessel
				  shall consist of three separate runs. Each run shall coincide with one or more
				  complete adsorption cycles.
(d) Method 1 or 1A of 40 CFR Part 60, Appendix A, shall be
				  used for velocity traverses.
(e) Method 2, 2A, 2C, or 2D of 40 CFR Part 60, Appendix A,
				  shall be used for velocity and volumetric flow rates.
(f) Method 3 or 3A of 40 CFR Part 60, Appendix A, shall be
				  used for O2 and CO2 analysis.
(g) Method 4 of 40 CFR Part 60, Appendix A, shall be used for
				  stack gas moisture.
(h) Methods 2, 2A, 2C, 2D, 3, 3A and 4 of 40 CFR Part 60,
				  Appendix A, shall be performed, as applicable, at least twice during each test
				  run.
(i)
Use of adaptations to test
				  methods.
Use of an adaptation to any of the analytical methods
				  specified in paragraphs (a) and (d) through (h) of this section shall be
				  approved by the Department and EPA on a case-by-case basis. An owner or
				  operator shall submit sufficient documentation for the Department and EPA to
				  find that the analytical methods specified in paragraphs (a) and (d) through
				  (h) will yield inaccurate results and that the proposed adaptation is
				  appropriate.
VOLATILE ORGANIC COMPOUNDS PROCEDURE G
Test Methods and Compliance Procedures: Leak Detection
				  Methods for Volatile Organic Compounds (VOC).
(a) Owners or operators required to carry out a leak
				  detection monitoring program shall comply with the following requirements:
(1) Monitoring shall be performed in accordance with Method
				  21 of 40 CFR Part 60, Appendix A.
(2) The detection instrument shall meet the performance
				  criteria of Method 21.
(3) The detection instrument shall be calibrated before and
				  after use on each day of its use by the methods specified in Method 21. Failure
				  to achieve a post-use calibration precision of less than 10 percent shall
				  constitute grounds for rejecting all tests performed since the last pre-use
				  calibration. In such cases, required leak tests must be reperformed.
(4) Calibration gases shall be:
(i) Zero air (less than 10 parts per million [ppm] of
				  hydrocarbon in air); and
(ii) A mixture of methane or n-hexane and air at a
				  concentration of approximately, but less than, 10,000 ppm methane or
				  n-hexane.
(5) The detection instrument probe shall be traversed around
				  all potential leak interfaces as close to the interface as possible as
				  described in Method 21.
(b) When equipment is tested for compliance with the
				  requirement that there be no detectable emissions, the test shall comply with
				  the following:
(1) The requirements of paragraph (a)(1) through (a)(5) of
				  this section shall apply and shall be met, and
(2) The background level shall be determined as set forth in
				  Method 21.
(c) Leak detection shall be performed consistent with:
(1) "APTI Course SI 417-Controlling Volatile Organic Compound
				  Emissions from Leaking Process Equipment", EPA-450/2-82-015;
(2) "Portable Instrument User's Manual for Monitoring VOC
				  Sources", EPA-340/1-86-015;
(3) "Protocols for Generating Unit-Specific Emission
				  Estimates for Equipment Leaks of VOC and VHAP", EPA-450/3-88-010; and
(4) "Petroleum Refinery Enforcement Manual",
				  EPA-340/1-80-008.
(d) Use of adaptations to test methods. Use of an adaptation
				  to any analytical methods specified in paragraphs (a), (b), and (c) of this
				  section shall be approved by the Department and EPA on a case-by-case basis. An
				  owner or operator shall submit sufficient documentation for the Department and
				  EPA to find that the analytical methods specified in paragraphs (a), (b), and
				  (c) will yield inaccurate results and that the proposed adaptation is
				  appropriate.
VOLATILE ORGANIC COMPOUNDS PROCEDURE H
Performance Specifications for Continuous Emissions
				  Monitoring of Total Hydrocarbons.
(a) Applicability.
(1) This method applies to the measurement of total
				  hydrocarbons as a surrogate measure for the total gaseous organic concentration
				  of the combustion gas stream. The concentration is expressed in terms of
				  propane.
(2) The Department may approve the use of gas conditioning,
				  including cooling to between 4.4[DEGREE] and 18[DEGREE]C (40[DEGREE] and
				  64[DEGREE]F), and condensate traps to reduce the moisture content of the sample
				  gas if the owner/operator:
(i) Successfully demonstrates to the Department that the use
				  of such system is necessary for the specific application; and
(ii) Includes in the demonstration a quantification of the
				  total hydrocarbon concentration (THC) lost to the gas conditioning
				  system.
(b) Principle. A gas sample is extracted from the source
				  through a heated sample line and heated glass fiber filter to a flame
				  ionization detector (FID). Results are reported as volume concentration
				  equivalents of the propane.
(c) Definitions. As used in this section, all terms not
				  defined herein shall have the meaning given them in the applicable chapters and
				  in Maine's Chapter 100 "Definitions regulation" and Chapter 117 Source
				  Surveillance.
"Calibration drift" means the difference in the measurement
				  system response to a mid-level calibration gas before and after a stated period
				  of operation during which no unscheduled maintenance, repair, or adjustment
				  took place.
"Calibration error" means the difference between the gas
				  concentration indicated by the measurement system and the known concentration
				  of the calibration system.
"Calibration gas" means a known concentration of gas in an
				  appropriate diluent gas.
"Measurement system" means the total equipment required for
				  the determination of the inlet and outlet gas concentrations, percent capture
				  efficiency, and gas outlet emission rate. The system consists of the following
				  major subsystems:
(1) Sample interface--the portion of the system that is used
				  for one or more of the following:
(i) Sample acquisition;
(ii) Sample transportation;
(iii) Sample conditioning; or
(iv) Protection of the analyzer from the effects of the stack
				  effluent;
(2) Organic analyzer--the portion of the system that senses
				  organic concentration and generates an output proportional to the gas
				  concentration;
(3) Data recorder--the portion of the system that records a
				  permanent record of the measurement values; and
(4) Flow rate system--a gas volume meter meeting the
				  requirements of Method 2A, Section 2.1 ( 40 CFR Part 60, Appendix A).
"Response time" means the time interval from a step change in
				  pollutant concentration at the inlet to the emission measurement system to the
				  time at which 95 percent of the corresponding final value is reached as
				  displayed on the recorder.
"Span value" means for most incinerators, a 50 parts per
				  million (ppm) propane span. Higher span values may be necessary if propane
				  emissions are significant. For convenience, the span value should correspond to
				  100 percent of the recorder scale.
"Zero drift" means the difference in the measurement system
				  response to a zero level calibration gas before and after a stated period of
				  operation during which no unscheduled maintenance, repair, or adjustment took
				  place.
(d) Apparatus. [Note: this method is often applied in highly
				  explosive areas. Caution should be exercised in choice of equipment and
				  installation.] An acceptable measurement system i includes a sample interface
				  system, a calibration valve, gas filter and a pump preceding the analyzer. THC
				  measurement systems are designated HOT or COLD systems based on the operating
				  temperatures of the system. In HOT systems, all components in contact with the
				  sample gas (probe, calibration valve, filter, and sample lines) as well as all
				  parts of the flame ionization analyzer between the sample inlet and the FID
				  must be maintained between 150[DEGREE] to 175[DEGREE]C. This includes the
				  sample pump if it is located on the inlet side of the FID. A condensate trap
				  may be installed, if necessary, to prevent any condensate entering the FID. The
				  essential components of the measurement system are as follows:
(1) Organic concentration analyzer. An FID capable of meeting
				  or exceeding the specifications in this method.
(2) Sample probe.
(i) Stainless steel, or equivalent, three hole rake type.
				  Sample holes shall be 4 millimeters (mm) (0.2 inches [in.] in diameter or
				  smaller and located at 16.7, 50, and 83.3 percent of the equivalent stack
				  diameter; or
(ii) A single opening probe so that a gas sample is collected
				  from the centrally located 10 percent area of the stack cross section.
(3) Sample line. Stainless steel or Teflon tubing to
				  transport the sample gas to the analyzer. The sample line from the heated probe
				  shall be heated to between 150 and 175[DEGREE]C (302[DEGREE] and
				  347[DEGREE]F).
(4) Calibration valve assembly.
(i) A heated three-way valve assembly to direct the zero and
				  calibration gases to the analyzers; or
(ii) Other methods, such as quick-connect lines, to route
				  calibration gas to the analyzers.
(5) Particulate filter. An in-stack or an out-of-stack glass
				  fiber filter if exhaust gas particulate loading is significant. An out-of-stack
				  filter must be heated.
(6) Recorder. A strip-chart recorder, analog computer, or
				  digital recorder for recording measurement data. The minimum data recording
				  shall be one measurement value per minute.
(e) Calibration gases and other gases.
(1) Gases used for calibration, fuel, and combustion air
				  shall be contained in compressed gas cylinders.
(2) Preparation of calibration gases shall be done according
				  to the procedure in Protocol No. 1, listed in the reference in paragraph (l)(2)
				  of this section.
(3) The recommended shelf life for each calibration gas
				  cylinder over which the concentration does not change more than n2 percent from
				  the certified value shall be obtained from the cylinder manufacturer.
(4) The following calibration and other gases shall be
				  used:
(i)
Fuel
. A 40 percent hydrogen and
				  60 percent helium or 40 percent hydrogen and 60 percent nitrogen gas mixture to
				  avoid an oxygen synergism effect that reportedly occurs when oxygen
				  concentration varies significantly from a mean value.
(ii)
Zero gas
. High purity air with
				  less than 0.1 parts per million by volume (ppmv) of organic material methane or
				  carbon equivalent or less than 0.1 percent of the span value, whichever is
				  greater.
(iii)
Low-level calibration gas.
Propane calibration gas (in air or nitrogen) with a concentration equivalent to
				  20 to 30 percent of the applicable span value.
(iv)
Mid-level calibration gas.
Propane calibration gas with a concentration equivalent to 45 to 55 percent of
				  the applicable span value.
(v)
High-level calibration gas
.
				  Propane calibration gas with a concentration equivalent to 80 to 90 percent of
				  the applicable span value.
(f)
Measurement system performance
				  specifications.
(1) Zero drift shall be less than n3 percent of the span
				  value.
(2) Calibration drift shall be less than n3 percent of the
				  span value.
(3) Calibration error shall be less than n5 percent of the
				  calibration gas value.
(g)
Pretest preparations.
(1) Selection of sampling site.
(i) The location of the sampling site shall be determined
				  from the applicable section of this subpart or purpose of the test (i.e.,
				  exhaust stack, inlet line, etc.).
(ii) The sample port shall be located at least 1.5 meters
				  (4.9 feet) or 2 equivalent diameters upstream of the gas discharge to the
				  atmosphere.
(2)
Location of sample probe.
The
				  sample probe must be installed so that the probe is centrally located in the
				  stack, pipe or duct and is sealed tightly at the stack port connection.
(3)
Measurement systems preparation.
Prior to the emission test, the measurement system must be assembled following
				  the manufacturer's written instructions in preparing the sample interface and
				  the organic analyzer. The system must be operable.
(4)
Calibration error test.
(i) Immediately prior to the test series (within 2 hours of
				  the start of the test), zero gas and high-level calibration gas shall be
				  introduced at the calibration valve assembly.
(ii) The analyzer output shall be adjusted to the appropriate
				  levels, if necessary.
(iii) The predicted response for the low-level and mid-level
				  gases shall be calculated based on a linear response line between the zero and
				  high-level responses.
(iv) Low-level and mid-level calibration gases shall be
				  introduced successively to the measurement system.
(v) The analyzer responses for low-level and mid-level
				  calibration gases shall be recorded, and the differences between the
				  measurement system responses and the predicted responses shall be determined.
				  These differences must be less than n5 percent of the respective calibration
				  gas value. If not, the measurement system shall be deemed not acceptable and
				  must be replaced or repaired prior to testing. No adjustments to the
				  measurement system shall be conducted after the calibration and before the
				  drift determination found in paragraph (h)(2) of this section.
(vi) If adjustments are necessary before the completion of
				  the test series, the drift checks shall be performed prior to the required
				  adjustments, and the calibration following the adjustments shall be
				  repeated.
(vii) If multiple electronic ranges are to be used, each
				  additional range must be checked with a mid-level calibration gas to verify the
				  multiplication factor.
(5)
Response time test.
(i) Zero gas shall be introduced into the measurement system
				  at the calibration valve assembly.
(ii) When the system output has stabilized, the owner or
				  operator shall switch quickly to the high-level calibration gas.
(iii) The time shall be recorded from the concentration
				  change to the measurement system response equivalent to 95 percent of the step
				  change.
(iv) The test shall be repeated three times and the results
				  averaged.
(h)
Emission measurement test
				  procedure.
(1)
Organic measurement.
(i) Sampling shall begin at the start of the test
				  period.
(ii) Time and any required process information shall be
				  recorded, as appropriate.
(iii) Periods of process interruption or cyclic operation
				  shall be noted on the recording chart.
(2)
Drift determination.
(i) Immediately following the completion of the test period
				  and hourly during the test period, the zero and mid-level calibration gases
				  shall be introduced, one at a time, to the measurement system at the
				  calibration valve assembly. No adjustments to the measurement system shall be
				  made until after both the zero and calibration drift checks are made.
(ii) The analyzer response shall be recorded.
(iii) If the drift values exceed the specified limits, the
				  test results shall be invalidated preceding the check, and the test shall be
				  repeated following corrections to the measurement system.
(iv) Alternatively, the test measurement system may be
				  recalibrated as in paragraph (g)(4) of this section and the results reported
				  using both sets of calibration data (i.e., data determined prior to the test
				  period and data determined following the test period).
(i)
Organic concentration
				  calculations.
The average organic concentration shall be
				  determined in terms of ppmv propane by the integration of the output recording
				  over the period specified in the applicable section of this subpart.
(j)
Quality assurance.
(1) The owner or operator shall assure proper calibration,
				  maintenance, and operation of the continuous emissions monitoring system on a
				  continual basis.
(2) The owner or operator shall establish a quality assurance
				  program to evaluate and monitor performance on a continual basis. The following
				  checks shall routinely be done:
(i) A daily calibration check for each monitor. The
				  calibration shall be adjusted if the check indicates the instrument's
				  calibration drift exceeds the specification established in paragraph (f) of
				  this section;
(ii) A daily system audit which includes the
				  following:
(A) A review of the calibration check data;
(B) An inspection of the recording system;
(C) An inspection of the control panel warning lights;
				  and
(D) An inspection of the sample transport/interface system
				  (e.g., flowmeters, filters), as appropriate;
(iii) A quarterly calibration error test at the span
				  midpoint; and
(iv) The entire performance specification test repeated every
				  second year.
(k)
Reporting of total hydrocarbon
				  levels.
(1) The total hydrocarbon concentration (THC) levels from the
				  initial compliance certification test shall be reported as ppm propane for
				  inlet and outlet concentrations and as a percent reduction across the control
				  device.
(2) THC levels shall be expressed in milligrams per second
				  (mg/sec) or pounds per second (lb/sec).
(3) This conversion shall be accomplished using the following
				  equation:
THC, mg/sec = (THC ppm propane) x (stack gas flow) x 5.2 x
				  10-2
where:
THC ppm propane = the total hydrocarbon concentration as
				  actually measured by this method in ppm propane at the inlet or outlet.
Stack gas flow = measured in dry standard cubic feet as time
				  needed as determined by the flowmeter system or Methods 2 and 4.
5.2 x 10-2 = constant to account for the conversion of
				  units.
(l)
References.
(1) Measurement of Volatile Organic Compounds--Guideline
				  Series. U. S. Environmental Protection Agency, Research Triangle Park, North
				  Carolina. Publication No. EPA-450/2-78-041. June 1978. p. 46-54.
(2) Traceability Protocol for Establishing True
				  Concentrations of Gases Used for Calibration and Audits of Continuous Source
				  Emission Monitors (Protocol No. 1). U. S. Environmental Protection Agency,
				  Environmental Monitoring and Support Laboratory. Research Triangle Park, North
				  Carolina. June 1973.
(3) Gasoline Vapor Emission Laboratory Evaluation--Part 2. U.
				  S. Environmental Protection Agency. Office of Air Quality Planning and
				  Standards. Research Triangle Park, North Carolina. EMB Report No. 75-GAS-6.
				  August 1975.
(4) Appendix D: Performance Specifications for Continuous
				  Emissions Monitoring of Total Hydrocarbons in Hazardous Waste Incinerators,
				  Boilers and Industrial Furnaces. Federal Register. 54:206 pp. 43743-43745.
				  October 26, 1989.
VOLATILE ORGANIC COMPOUNDS PROCEDURE I
Quality Control Procedures for Continuous Emission
				  Monitoring Systems (CEMS)
(a)
CEMS quality control (QC)
				  program.
Each owner or operator of a CEMS shall develop and
				  implement a CEMS QC program. At a minimum, each QC program shall include
				  written procedures that describe in detail step-by-step procedures and
				  operations for each of the following:
(1) Initial and routine periodic calibration of the
				  CEMS.
(2) Calibration drift (CD) determination and adjustment of
				  the CEMS.
(3) Preventative maintenance of the CEMS (including spare
				  parts inventory).
(4) Data recording, calculations, and reporting.
(5) Accuracy audit procedures including sampling and analysis
				  methods.
(6) Program of corrective action for malfunctioning
				  CEMS.
(b)
Determining out-of-control condition for the
				  CEMS.
(1) If either the zero (or low-level) or high-level CD
				  exceeds twice the applicable drift specification in 40 CFR Part 60, Appendix B,
				  for five consecutive daily periods, the CEMS is out-of-control.
(2) If either the zero (or low-level) or high-level CD
				  exceeds four times the applicable drift specification in 40 CFR Part 60,
				  Appendix B, during any CD check, the CEMS is out-of-control.
(3) If the CEMS fails a performance audit (PA), the CEMS is
				  out-of-control, and the owner or operator shall take necessary corrective
				  action to eliminate the problem. Following the corrective action, the source
				  owner or operator shall reconduct the appropriate failed portion of the audit
				  and other applicable portions to determine whether the monitoring system is
				  operating properly and within specifications. Monitoring data obtained during
				  any out-of-control period may not be used for compliance determination or meet
				  any data capture requirements; however, the data can be used for identifying
				  periods when there has been a failure to meet quality assurance/quality control
				  criteria.
(c)
Determining the out-of-control time period
				  for the CEMS.
(1) The beginning of the out-of-control period is:
(i) The time corresponding to the completion of the fifth
				  consecutive daily CD check with CD in excess of two times the allowable limit,
				  or
(ii) The time corresponding to completion of the daily CD
				  check preceding the daily CD check that results in a CD in excess of four times
				  the allowable limit.
(2) The end of the out-of-control period is the time
				  corresponding to the completion of the CD check following corrective action
				  that results in the CD at both the zero (or low-level) and high-level
				  measurement points being within the corresponding allowable CD limit (i.e.,
				  either two times or four times the allowable limit in 40 CFR Part 60, Appendix
				  B).
(3) If the CEMS failed a PA, the beginning of the
				  out-of-control period is the time corresponding to the completion of the failed
				  audit test. The end of the out-of-control period is the time corresponding to a
				  successful retest of the PA sample.
(d)
Recordkeeping.
The owner or
				  operator shall keep the QC procedure described in paragraph (a) of this section
				  in a readily accessible location for at least 5 years and shall make the
				  procedure available to the Department and/or EPA upon verbal or written
				  request.
(e)
Reporting.
Upon verbal or
				  written request, the owner or operator shall submit to the Department and/or
				  EPA a copy of all information and records documenting out-of-control periods
				  including beginning and end dates and descriptions of corrective actions
				  taken.