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

Revisions to strengthen and clarify Hg monitoring provisions

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

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

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.

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

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]

Example Long Duration Substitute SO2 Data Situation For a Controlled Unit

MPC=1146, MEC=321

0

200

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1 300 599 898 1197 1496 1795 2094 2393 2692 2991 3290 3589 3888 4187 4486 4785 5084 5383 5682 5981 6280

Data Point #

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10

20

30

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50

60

70

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SO2 Monitor Traditional Substitute Data Routine Stepwise Sub Data Routine

Stepwise w/MEC Sub Data Routine PMA

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

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)

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)

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

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

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)

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

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

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