Air Plan Revisions; California; Sacramento Metropolitan Air Quality Management District

<RULE> ENVIRONMENTAL PROTECTION AGENCY <CFR>40 CFR Part 52</CFR> <DEPDOC>[EPA-R09-OAR-2024-0197; FRL-11981-02-R9]</DEPDOC> <SUBJECT>Air Plan Revisions; California; Sacramento Metropolitan Air Quality Management District</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Environmental Protection Agency (EPA). <HD SOURCE="HED">ACTION:</HD> Final rule. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Environmental Protection Agency (EPA) is taking final action to approve State implementation plan (SIP) revisions from the Sacramento Metropolitan Air Quality Management District (SMAQMD or “District”) to address Clean Air Act (CAA or “Act”) requirements related to the 2008 8-hour ozone national ambient air quality standards (NAAQS or “standards”). These revisions concern emissions of oxides of nitrogen (NO <E T="52">X</E> ) from boilers, gas turbines, and miscellaneous (“misc”) combustion units as well as reasonably available control technology (RACT) requirements for major sources of NO <E T="52">X</E> in the portion of the Sacramento Metro, CA, nonattainment area that is subject to SMAQMD jurisdiction. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This rule is effective October 25, 2024. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> The EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2024-0197. All documents in the docket are listed on the <E T="03">https://www.regulations.gov</E> website. Although listed in the index, some information is not publicly available, <E T="03">e.g.,</E> Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available through <E T="03">https://www.regulations.gov,</E> or please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section for additional availability information. If you need assistance in a language other than English or if you are a person with a disability who needs a reasonable accommodation at no cost to you, please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Eugene Chen, EPA Region IX, 75 Hawthorne St., San Francisco, CA 94105. By phone: (415) 947-4304 or by email at <E T="03">chen.eugene@epa.gov.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> Throughout this document, “we,” “us,” and “our” refer to the EPA. <HD SOURCE="HD1">Table of Contents</HD> <EXTRACT> <FP SOURCE="FP-2">I. Proposed Action</FP> <FP SOURCE="FP-2">II. Public Comments and EPA Responses</FP> <FP SOURCE="FP-2">III. EPA Action</FP> <FP SOURCE="FP-2">IV. Incorporation by Reference</FP> <FP SOURCE="FP-2">V. Statutory and Executive Order Reviews</FP> </EXTRACT> <HD SOURCE="HD1">I. Proposed Action</HD> On July 2, 2024, the EPA proposed to approve the California Air Resources Board's (CARB) submittal of a SIP revision adopted by the SMAQMD. <SU>1</SU> <FTREF/> As discussed in our proposed action, this SIP revision adopted portions of several permits issued under the District's SIP-approved New Source Review (NSR) permit program (“District Permits”) for submittal into the SIP. These District Permits are relied upon to implement RACT for major sources of NO <E T="52">X</E> , and we proposed to determine that these District Permits would comply with the EPA's Startup, Shutdown, and Malfunction (SSM) policy and other applicable Clean Air Act (CAA or “Act”) requirements. Based on our review, we proposed to determine that these District Permits, in conjunction with the SIP-approved NO <E T="52">X</E> limits already established in Rule 411 (NO <E T="52">X</E> from Boilers, Process Heaters and Steam Generators) and Rule 413 (Stationary Gas Turbines), implement RACT for each major NO <E T="52">X</E> source in the District. We therefore also proposed to approve the major source NO <E T="52">X</E> RACT element of the 2017 RACT SIP for the 2008 ozone NAAQS. <FTNT> <SU>1</SU>  89 FR 54748. </FTNT> <GPOTABLE COLS="5" OPTS="L2,i1" CDEF="s50,xs54,r100,10C,10C"> <TTITLE>Table 1—Submitted Documents</TTITLE> <CHED H="1">Local agency</CHED> <CHED H="1"> Document/ rule No. </CHED> <CHED H="1">Document title</CHED> <CHED H="1">Adopted</CHED> <CHED H="1">Submitted</CHED> <ROW> <ENT I="01">SMAQMD</ENT> <ENT/> <ENT>Reasonably Available Control Technology (RACT) Permits for Major Stationary Sources of Nitrogen Oxides</ENT> <ENT>03/28/2024</ENT> <ENT>04/11/2024</ENT> </ROW> </GPOTABLE> A list of individual permits contained in this submittal is included in Table 2 below. <GPOTABLE COLS="5" OPTS="L2,nj,i1" CDEF="s60,xs70,r46,10,r50"> <TTITLE>Table 2—District Permits Included in April 11, 2024 Submittal</TTITLE> <CHED H="1">Source name</CHED> <CHED H="1">Permit No.</CHED> <CHED H="1">Unit name/ID</CHED> <CHED H="1"> Unit size (MMBtu/hr) </CHED> <CHED H="1">Unit type</CHED> <ENT I="01">Mitsubishi Chemical Carbon Fiber and Composites</ENT> Misc Combustion Unit. Misc Combustion Unit. </ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>24613</ENT> <ENT>Oxidation Oven 3</ENT> <ENT>2</ENT> <ENT>Misc Combustion Unit.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>24614</ENT> <ENT>Oxidation Oven 4</ENT> <ENT>2</ENT> <ENT>Misc Combustion Unit.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27336</ENT> <ENT>Oxidation Oven—Line 31</ENT> <ENT>3</ENT> <ENT>Misc Combustion Unit.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27337</ENT> <ENT>Oxidation Oven—Line 31</ENT> <ENT>3</ENT> <ENT>Misc Combustion Unit.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27338</ENT> <ENT>Cleaver Brooks Boiler</ENT> <ENT>6</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="01">UC Davis Medical Center</ENT> <ENT>17549</ENT> <ENT>Combined Cycle Turbine</ENT> <ENT>260</ENT> <ENT>Gas Turbine.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>20216</ENT> <ENT>Boiler 1</ENT> <ENT>32</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>20217</ENT> <ENT>Boiler 2</ENT> <ENT>32</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>20218</ENT> <ENT>Boiler 3</ENT> <ENT>32</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>20219</ENT> <ENT>Boiler 4</ENT> <ENT>32</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="01">Sacramento Metropolitan Utility District (SMUD) Procter & Gamble Power Plant</ENT> <ENT> 27140 27141 and 27132 27142 and 27133 </ENT> <ENT> Babcock & Wilcox Boiler Boiler. Gas Turbine and Duct Burner. <SU>a</SU> Gas Turbine and Duct Burner. <SU>a</SU> </ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27143</ENT> <ENT>Gas Turbine 1C</ENT> <ENT>Gas Turbine.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27144</ENT> <ENT>Boiler 1B</ENT> <ENT>109</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="01">SMUD Cosumnes Power Plant</ENT> Gas Turbine. Gas Turbine. </ENT> </ROW> <ROW> <ENT I="01">SMUD Campbell Power Plant</ENT> <ENT>27118 and 27116</ENT> <ENT>Gas Turbine</ENT> <ENT>1,410</ENT> <ENT> Gas Turbine and Duct Burner. <SU>a</SU> </ENT> </ROW> <ROW> <ENT I="01">SMUD Carson Power Plant</ENT> <ENT>27151 and 27153</ENT> <ENT>Gas Turbine</ENT> <ENT>600</ENT> <ENT> Gas Turbine and Duct Burner. <SU>a</SU> </ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27154</ENT> <ENT>Cleaver Brooks Boiler</ENT> <ENT>Boiler.</ENT> </ROW> <ROW> <ENT I="22"> </ENT> <ENT>27156</ENT> <ENT>Turbine 27156</ENT> <ENT>450</ENT> <ENT>Gas Turbine.</ENT> </ROW> <TNOTE> <SU>a</SU>  These units are combined cycle gas turbines, which consist of a simple cycle gas turbine combined with a duct burner, and are listed under the same permit document with separate permit numbers. For clarity, we are including the duct burner permit number in addition to the turbine permit number. </TNOTE> </GPOTABLE> <HD SOURCE="HD1">II. Public Comments and EPA Responses</HD> The EPA's proposed action provided a 30-day public comment period. During this period, we received no comments. <HD SOURCE="HD1">III. EPA Action</HD> No comments were submitted on the proposed action, and there is no change to our assessment of the SIP revision as described in our proposed action. Therefore, as authorized in section 110(k)(3) of the Act, the EPA is approving these District Permits into the California SIP. In addition, we are approving the major source NO <E T="52">X</E> element for SMAQMD's RACT obligation for the 2008 ozone NAAQS. This approval corrects all deficiencies identified in our June 30, 2023 partial disapproval of the major NO <E T="52">X</E> element of the 2017 RACT SIP (88 FR 42248), permanently stopping all sanction clocks associated with that partial disapproval. Moreover, this approval corrects the final remaining deficiency identified in our February 3, 2017 finding of failure to submit action for the SMAQMD's 2008 ozone NAAQS RACT SIP obligation (82 FR 9158). In addition, it terminates the EPA's obligation to promulgate a Federal Implementation Plan in response to that action. <HD SOURCE="HD1">IV. Incorporation by Reference</HD> In this rule, the EPA is finalizing regulatory text that includes incorporation by reference. In accordance with requirements of 1 CFR 51.5, the EPA is finalizing the incorporation by reference of the District Permits contained in the submitted SIP revision and listed in Table 2 of this preamble, which establish NO <E T="52">X</E> emission limits for specific major sources in the District. The EPA has made, and will continue to make, these documents available through <E T="03">https://www.regulations.gov</E> and at the EPA Region IX Office (please contact the person identified in the <E ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 22k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━