planned revisions to 40 cfr parts 72 and 75 matthew g. boze u.s. epa clean air markets division
TRANSCRIPT
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
400
600
800
1000
1200
1400
1 300 599 898 1197 1496 1795 2094 2393 2692 2991 3290 3589 3888 4187 4486 4785 5084 5383 5682 5981 6280
Data Point #
PP
M S
O2
(C
on
ce
ntr
ati
on
)
0
10
20
30
40
50
60
70
80
90
100
%P
MA
(M
on
ito
r A
va
ilab
ility
)
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