<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.s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0 { 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.s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000001 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000002 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003 { color: black; background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:07:115"><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">74</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">:</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">36</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">:</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">07</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">:</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000000">115</span></a><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000001">.  Existing municipal solid waste landfill instrumentation specifications and procedures for surface emission monitoring devices.</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> The owner or operator of an existing municipal solid waste landfill complying with the provisions in §</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:07:103"><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000002">74:36:07:103</span></a><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> must</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> comply with the following procedures for demonstrating compliance with the surface methane operational standards:</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">(1)</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">  </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">The portable analyzer meet</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">s</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> the instrument specifications provided in 40 C.F.R. Part 60, Appendix A, Method 21, section 6 (July 1, 20</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">24</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">), except that methane replaces all references to VOC;</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">(2)</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">  </span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">The calibration gas </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">is</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> methane, diluted to a nominal concentration of </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">five hundred</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> parts per million in air;</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">(3)</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">  </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">To meet the performance evaluation requirements in 40 C.F.R. Part 60, Appendix A, Method 21, section 8.1 (July 1, 20</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">24</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">), the instrument evaluation procedures of section 8.1 </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">are</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> used; and</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">(4)</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">  </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">The calibration procedures provided in 40 C.F.R. Part 60, Appendix A, Method 21, sections 8 and 10 (July 1, 20</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">24</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">) </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">are</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> followed immediately before commencing a surface monitoring survey.</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000001">Source:</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> 46 SDR 64, effective November 25, 2019</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">; 52 SDR 27, effective September 17, 2025</span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">.</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000001">General Authority:</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000002">34A-1-6</span></a><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000002">34A-1-18</span></a><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">.</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">    </span><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000001">Law Implemented:</span><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0-000002">34A-1-18</span></a><span class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eC0">.</span></p><p dir="ltr" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719eP0"><span xml:space="preserve" class="s65ff15ee-2ff6-4190-b635-c2bb54a8719e000003"> </span></p></div></body></html>