<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.sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0 { 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.sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000001 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sc59c92b3-8ac2-49de-91cf-0e996074dfb6000002 { background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000003 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } p.sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0-000004 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: left; background: white; font-family: Times; font-size: 10pt; line-height: 108%; } span.sc59c92b3-8ac2-49de-91cf-0e996074dfb6000005 { background: white; font-size: 10pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:02:05"><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000000">74:36:02:05</span></a><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000001">.  Ambient air monitoring requirements.</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> The operation of ambient air monitoring required by the department </span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">must</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> be consistent with 40 C.F.R. Part 58 (July 1, 20</span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">24</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">). Records of monitoring activities and results </span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">must</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> be retained for a minimum of three years.</span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6000002"> </span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">    </span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000001">Source:</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> 19 SDR 157, effective April 22, 1993; 21 SDR 119, effective January 5, 1995; 25 SDR 123, effective April 4, 1999; 26 SDR 168, effective June 27, 2000; 31 SDR 101, effective January 2, 2005; 32 SDR 209, effective June 13, 2006; 36 SDR 207, effective June 28, 2010; 39 SDR 219, effective June 25, 2013; 42 SDR 52, effective October 13, 2015; 44 SDR 43, effective September 13, 2017; 46 SDR 64, effective November 25, 2019</span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">; 52 SDR 27, effective September 17, 2025</span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">.</span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">    </span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000001">General Authority:</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000003">34A-1-6</span></a><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-15"><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000003">34A-1-15</span></a><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">.</span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">    </span><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000001">Law Implemented:</span><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-1"><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000003">34A-1-1</span></a><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-15"><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0-000003">34A-1-15</span></a><span class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6C0">.</span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6000002"> </span></p><p dir="ltr" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6P0-000004"><span xml:space="preserve" class="sc59c92b3-8ac2-49de-91cf-0e996074dfb6000005"> </span></p></div></body></html>