<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.sa88303d9-603e-43a9-a94a-10d9a122f5bfP0 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: justify; background: white; font-family: Times; font-size: 12pt; line-height: 108%; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bfC0 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000000 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bf000002 { background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000003 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000004 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:07:55"><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000000">74:36:07:55</span></a><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">.  Standards of performance for the phosphate fertilizer industry</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001"> --</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001"> </span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">W</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">et-process phosphoric acid plants.</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0"> The standards of performance for </span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">the phosphate fertilizer industry, </span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">wet-process phosphoric acid plants are those in 40 C.F.R. </span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">Part </span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">60</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">, Subpart T</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0"> (July 1, 20</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">24</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">).</span></p><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bf000002"> </span></p><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">    </span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">Source:</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0"> 33 SDR 217, effective June 13, 2007; 36 SDR 207, effective June 28, 2010; 39 SDR 219, effective June 25, 2013; 42 SDR 52, effective October 13, 2015</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000003">; 44 SDR 43, effective September 13, 2017; 46 SDR 64, effective November 25, 2019</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000003">; 52 SDR 27, effective September 17, 2025</span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">.</span></p><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">    </span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">General Authority:</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000004">34A-1-6</span></a><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000004">34A-1-18</span></a><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">.</span></p><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">    </span><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000001">Law Implemented:</span><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0-000004">34A-1-18</span></a><span class="sa88303d9-603e-43a9-a94a-10d9a122f5bfC0">.</span></p><p dir="ltr" class="sa88303d9-603e-43a9-a94a-10d9a122f5bfP0"><span xml:space="preserve" class="sa88303d9-603e-43a9-a94a-10d9a122f5bf000002"> </span></p></div></body></html>