Planned Revisions to 40 CFR Parts 72 and 75

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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
• RATAs
• 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 QAs 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