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Planned Revisions to 40 CFR Parts 72 and 75. Matthew G. Boze U.S. EPA Clean Air Markets Division. Types of Revisions Proposed. Revisions necessary to support or streamline reporting under ECMPS Revisions to clarify, simplify, modify or correct mistakes in existing requirements

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Planned Revisions to 40 CFR Parts 72 and 75

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Planned revisions to 40 cfr parts 72 and 75 l.jpg

Planned Revisions to 40 CFR Parts 72 and 75

Matthew G. Boze

U.S. EPA

Clean Air Markets Division


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Types of Revisions Proposed

  • Revisions necessary to support or streamline reporting under ECMPS

  • Revisions to clarify, simplify, modify or correct mistakes in existing requirements

  • Revisions to strengthen and clarify Hg monitoring provisions


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Definitions §72.2

  • Adding Definitions for:

    • Long-term cold storage

    • EPA Protocol Gas Verification Program

    • Air Emission Testing Body (AETB)

    • Qualified Individual

  • Revising Definitions for:

    • Capacity Factor

    • EPA Protocol Gas

    • Excepted Monitoring Systems


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General Provisions

  • Updating Incorporated References

  • Add Default Moisture Value for Natural Gas (14.0% and 18.0%)

  • Allowing use of F-23 default SO2 emission rate for low sulfur fuels without requiring SO2 CEMS.

  • Remove requirement for EPA to publish each Alternative Monitoring System (PEMS) approval in the Federal Register


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Reference Methods

  • Adopt revised Part 60 Reference Methods with certain exceptions

    • No calibration gasses prepared by dilution in field using method 205 (must use EPA Protocol Gasses only)

    • No using multi-holed probes (without prior approval) in lieu of traversing stack

    • No using “Dynamic Spiking” in lieu of the interference and system bias checks of the method.

  • Allow use of EPA Method 29 as an alternative to the Ontario Hydro Method for Hg.


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Stack Tester Accreditation (AETB)

  • Add requirements for individuals or companies performing stack testing to be certified as Air Emission Testing Bodies (AETB) in accordance with ASTM D7036-04

  • ASTM D7036-04 “Standard Practice for Competence of Air Emission Testing Bodies” is a consensus standard developed to ensure stack testing is conducted by qualified individuals

  • The following Part 75 test would be subject to this standard:

    • RATA’s

    • Appendix E & LME NOs emission rate tests

    • Hg emission rate tests for Hg LME units


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Missing Data Substitution

  • Make “Stepwise” approach the required approach rather than “Block” approach

  • Substitute Data for Controlled Units

    • Remove requirement to petition for controlled maximum value under §75.34(c)(3) – [Tier 3]

    • Add Provision to allow MEC/MCR in lieu of MPC/MER whenever controls are documented to be operating properly [Tier 4 and unmonitored bypass stack hours]


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Recordkeeping and Reporting

  • Revisions to general and specific monitoring plan recordkeeping requirements

    • Support transition to XML format

    • Adding WAF reporting requirements for Rectangular Ducts

  • Revisions to QA/QC recordkeeping requirements for transition to XML format

  • Revisions to Quarterly Reports requirements for transition to XML format


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Other Reporting Issues

  • Provision to allow “long term cold storage” units to suspend quarterly reporting

  • New requirement to report the certification deadline date needed to know when to start counting allowances by §72.9

  • Relax initial monitoring plan submittal deadline from 45 days to 21 days prior to initial certification

  • Remove requirement for EPA Form 7610-14

  • Allow reporting of steam load in units of mmBtu/hr

  • Separate reporting requirements for MP, QA, and Emissions – (New Reengineering Process)


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NOx Mass and Heat Input

  • Limit Monitoring Plan to only one active NOx mass methodology at a time

  • Revise and Simplify the linearity and RATA QA requirements for ozone season only (OSO) reporters

  • Clarify that peaking status for OSO reporters is based on 3,672 hours and not 8,760

  • Require that either a CO2 or O2 monitoring system be identified and QA’s whenever heat input is calculated from stack flow and diluent (CO2 or O2)


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Appendix A

  • Allow CO2 spans less than 6.0 percent with technical justification provided in the monitoring plan

  • Require vendors of EPA Protocol Gas to participate in a Protocol Gas Audit Program

  • Clarify applicability of Linearity Exemption

  • Alternative stability specifications for performing cycle time tests for low span analyzers

  • Correct Part 60 cross references


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Appendix B

  • Harmonize 5 year requirement for 3-load flow RATAs with other 5 year testing requirements (make 5 years = 20 calendar quarters)

  • Simplify the requirement for determining RATA deadlines after completing a grace period RATA.

  • Clarify and extend provisions for range specific data validation wrt linearities and daily calibration error checks

  • Clarify requirements and limitations for data validation using off-line calibrations


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Appendix D & E

  • Update references

  • Relax qualification requirements for pipeline natural gas

  • Remove requirements for vendor to split and save oil samples

  • Specify substitute data requirement for when the Appendix E correlation curve expires (use maximum emission rate)


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Appendix F

  • Add equations N-1 and N-2 to rule and modify NOx Mass equations to support reporting hourly data in lb/hr rather than lbs.

  • Limit use of diluent cap to NOx calculations only to simplify reporting

  • Specify substitution requirements for negative emission calculations for certain equations (HI, CO2)

  • Procedures for prorating F-factors

  • Add standard F-factors to rule for Petroleum Coke and Tire Derived Fuels


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LME (SO2 & NOx)

  • Default Emission Rates

    • Allow use of permit sulfur limits to calculate a lower SO2 default emission rate than is provided by rule

    • Clarify that Part 60 CEMS data may be used to establish a fuel and unit specific default NOx emission rate

  • Clarify

    • How to calculate hourly, quarterly, and cumulative NOx emission rates

    • That the LME provisions of §75.19 must be used for all parameters (SO2, NOx, CO2) if used for any one

  • Remove requirement for hardcopy LME certifications to CAMD


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Hg

  • Add requirements to provide 21 day notice and provide testing results upon request for periodic Hg LME emission tests

    • These requirements are consistent with requirements for Hg emission tests used to certify and QA Hg CEMS

  • Add heat input monitoring provision

    • Inadvertently omitted from previous Hg monitoring rule

  • Correct error in requirements for weekly system integrity checks

  • Harmonize the linearity and system integrity specifications with alternate specifications

  • Other technical corrections and changes to reflect ECMPS


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