United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2007_register executive 2014-05-29 article Part II Rules and Regulations D09002ee1c80a4f6d D09002ee1c80a503f United States Environmental Protection Agency originator org United States Government Agency or Subagency EPA is taking direct final action on two optional methods for relative accuracy audits of mercury monitoring systems installed on combustion flue gas streams and several amendments to related mercury monitoring provisions. This action approves two optional mercury (Hg) emissions test methods for potential use in conjunction with an existing regulatory requirement for Hg emissions monitoring, as well as several revisions to the mercury monitoring provisions themselves. This action is in regard to the testing and monitoring requirements for mercury specified in the Federal Register on May 18, 2005. Since that publication, EPA has received numerous comments concerning the desirability of EPA evaluating and allowing use of the measurement techniques addressed in the two optional methods in lieu of the methods identified in the cited Federal Register publication, as they can produce equally acceptable measures of the relative accuracy achieved by Hg monitoring systems. This action allows use of these two optional methods entirely at the discretion of the owner or operator of an affected emission source in place of the two currently specified methods. This direct final rule also amends Performance Specification 12A by adding Methods 30A and 30B to the list of reference methods acceptable for measuring Hg concentration and the Hg monitoring provisions of May 18, 2005, to reflect technical insights since gained by EPA which will help to facilitate implementation including clarification and increased regulatory flexibility for affected sources. 72 FR 51494 https://www.govinfo.gov/app/details/FR-2007-09-07/07-4147 07-4147 fr07se07-17 RIN 2060-AO01 6560-50-C EPA-HQ-OAR-2007-0164, FRL-8459-8 https://www.govinfo.gov/app/details/FR-2007-09-07/07-4147 https://www.govinfo.gov/content/pkg/FR-2007-09-07/html/07-4147.htm https://www.govinfo.gov/content/pkg/FR-2007-09-07/pdf/07-4147.pdf Environmental Protection Administrative Practice and Procedures Air Pollution Control Continuous Emission Monitors Electric Utilities Mercury Test Methods and Procedures 38 p. 51494 51531 72 FR 51494 Title 40 Part 60 40 CFR Part 60 Title 40 Part 72 40 CFR Part 72 Title 40 Part 75 40 CFR Part 75 RIN 2060-AO01 Two Optional Methods for Relative Accuracy Test Audits of Mercury Monitoring Systems Installed on Combustion Flue Gas Streams and Several Amendments to Related Mercury Monitoring Provisions; Federal Register Vol. 72, Issue RULE 07-4147 II ENVIRONMENTAL PROTECTION AGENCY 2007-11-06 2007-10-09 EPA-HQ-OAR-2007-0164, FRL-8459-8 6560-50-C 07-4147 Direct final rule.

EPA is taking direct final action on two optional methods for relative accuracy audits of mercury monitoring systems installed on combustion flue gas streams and several amendments to related mercury monitoring provisions. This action approves two optional mercury (Hg) emissions test methods for potential use in conjunction with an existing regulatory requirement for Hg emissions monitoring, as well as several revisions to the mercury monitoring provisions themselves. This action is in regard to the testing and monitoring requirements for mercury specified in the Federal Register on May 18, 2005. Since that publication, EPA has received numerous comments concerning the desirability of EPA evaluating and allowing use of the measurement techniques addressed in the two optional methods in lieu of the methods identified in the cited Federal Register publication, as they can produce equally acceptable measures of the relative accuracy achieved by Hg monitoring systems. This action allows use of these two optional methods entirely at the discretion of the owner or operator of an affected emission source in place of the two currently specified methods. This direct final rule also amends Performance Specification 12A by adding Methods 30A and 30B to the list of reference methods acceptable for measuring Hg concentration and the Hg monitoring provisions of May 18, 2005, to reflect technical insights since gained by EPA which will help to facilitate implementation including clarification and increased regulatory flexibility for affected sources.

This rule is effective on November 6, 2007 without further notice, unless EPA receives adverse comment by October 9, 2007. If EPA receives adverse comment, EPA will publish a timely withdrawal in the Federal Register informing the public that some or all of the amendments in this rule will not take effect. Either Mr. William Grimley, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Measurement Technology Group (E143-02), EPA, Research Triangle Park, NC 27711, telephone (919) 541-1065, facsimile number (919) 541-0516, e- Environmental Protection Administrative Practice and Procedures Air Pollution Control Continuous Emission Monitors Electric Utilities Mercury Test Methods and Procedures Water pollution control: Mercury monitoring systems; relative accuracy test audits, a-and-r-docket@epa.gov grimley.william@epa.gov segall.robin@epa.gov http://www.epa.gov/airmarkets http://www.epa.gov/epahome/dockets.htm http://www.epa.gov/ttn/emc http://www.epa.gov/ttn/emc/prelim.html http://www.epa.gov/ttn/oarpg www.epa.gov/airmarkets/ www.epa.gov/ttn/emc www.epa.gov/ttn/emc/ www.regulations.gov Vol. 72, no. 173 Office of the Federal Register, National Archives and Records Administration 2007-09-07 continuing daily deposited born digital 212 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2007-09-07 P0b002ee1892c74a3 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr07se07 https://www.govinfo.gov/app/details/FR-2007-09-07 https://www.govinfo.gov/content/pkg/FR-2007-09-07/pdf/FR-2007-09-07.pdf https://www.govinfo.gov/content/pkg/FR-2007-09-07/xml/FR-2007-09-07.xml fdlp 51353 51554 DGPO 2014-05-29 2024-06-05 FR-2007-09-07 machine generated eng FR FR-2007-09-07 72 173