<html xmlns="http://www.w3.org/1999/xhtml"><head><meta charset="UTF-8" /><title></title><meta name="Generator" content="PowerTools for Open XML" /><style>span { white-space: pre-wrap; } p.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: justify; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; line-height: 108%; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000001 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002 { color: black; background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: italic; font-weight: normal; margin: 0; padding: 0; } span.sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000004 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:07:110"><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">74</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">:</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">36</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">:</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">07</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">:</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000000">110</span></a><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000001">.  Initial control system performance test for existing municipal solid waste landfill.</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> The owner or operator </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> conduct an initial performance test to be completed no later than </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">one hundred eighty</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> days after the initial startup of the approved control system. The performance test is not required for boilers and process heaters with design heat input capacities equal to or greater than </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">forty-four</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> megawatts that burns the landfill gas. The owner or operator </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> use the following test methods:</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">(1)</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">  </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">For a non-enclosed flare, the net heating value of the combusted landfill gas, as determined in 40 C.F.R. § 60.18(f)(3) (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">), is calculated from the concentration of methane in the landfill gas as measured by 40 C.F.R. Part 60, Appendix A, Method 3C (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">). A minimum of three </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">thirty</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">-minute Method 3C samples are determined. The measurement of other organic components, hydrogen, and carbon monoxide is not applicable. Method 3C may be used to determine the landfill gas molecular weight for calculating the flare gas exit velocity under 40 C.F.R. § 60.18(4) (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">);</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">(2)</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">  </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">40 C.F.R. Part 60, Appendix A, Method 25 or 25C (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">) </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> be used to determine compliance with the </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">ninety-eight</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> percent by weight efficiency or the </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">twenty</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> parts per million by volume outlet nonmethane organic compound concentration level, unless another method to demonstrate compliance has been approved by the secretary. Method 25C may be used at the inlet only. 40 C.F.R. Part 60, Appendix A, Method 3, 3A, or 3C (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">) </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> be used to determine oxygen for correcting the nonmethane organic compound concentration as hexane to three percent. In cases where the outlet concentration is less than </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">fifty</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> parts per million nonmethane organic compound as carbon</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">,</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">eight</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> parts per million nonmethane organic compound as hexane, 40 C.F.R. Part 60, Appendix A, Method 25A (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">) should be used in place of Method 25. 40 C.F.R. Part 60, Appendix A, Method 18 (July 1, 20</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">24</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">) may be used in conjunction with Method 25A on a limited basis or Method 3C may be used to determine methane. The methane as carbon should be subtracted from the Method 25A total hydrocarbon value as carbon to give nonmethane organic compound concentration as carbon. The owner or operator </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> divide the nonmethane organic compound concentration as carbon by six to convert the nonmethane organic compound concentration as carbon to nonmethane organic compound concentration as hexane. The following equation </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">is</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> used to calculate efficiency:</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003">Control efficiency=(NMOC</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003"><sub>in</sub></span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003"><sub> </sub></span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003">-</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003"> </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003">NMOC</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003"><sub>out</sub></span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003">)/NMOC</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000003"><sub>in</sub></span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">, where</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">NMOC</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"><sub>in</sub></span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> = Mass of nonmethane organic compounds entering control device; and</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">NMOC</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"><sub>out</sub></span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> = Mass of nonmethane organic compounds exiting control device;</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">Within </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">sixty</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> days after the date of completing each performance test, the owner or operator </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">must</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> submit the results of the performance tests, including any associated fuel analyses</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">, to the secretary</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">.</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000001">Source:</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> 46 SDR 64, effective November 25, 2019</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">; 52 SDR 27, effective September 17, 2025</span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">.</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000001">General Authority:</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000004">34A-1-6</span></a><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000004">34A-1-18</span></a><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">.</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">    </span><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000001">Law Implemented:</span><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0-000004">34A-1-18</span></a><span class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24C0">.</span></p><p dir="ltr" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24P0"><span xml:space="preserve" class="sa3b1f8d4-900e-41ef-b976-41f1f7c1eb24000002"> </span></p></div></body></html>