<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.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0 { 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.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; 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solid windowtext 1.0pt; padding-bottom: 0; border-left: solid windowtext 1.0pt; padding-left: 5.4pt; } span.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000010 { color: black; background: white; font-family: Symbol; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } p.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000011 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: right; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; line-height: 108%; } span.s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000012 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 10pt; text-decoration: underline; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:53"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000000">74:51:01:53</span></a><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">.  Criteria for irrigation waters.</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> The criteria of parameters for irrigation waters and the allowable variations that are not included under § </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:55"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">74:51:01:55</span></a><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> </span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">or</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> Appendix B</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> of this chapter</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">, unless set under § </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:24"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">74:51:01:24</span></a><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">, are as found in the following table:</span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p><div align="left"><table dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000004"><tr><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000005"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Parameter</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000006"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Criteria</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000008"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Unit of Measure</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000009"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Special Conditions</span></p></td></tr><tr><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000005"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">Conductivity at 25</span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000010">°ð</span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">C</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000006"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000011"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000012">&lt;</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> 2,500</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000008"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">micromhos/cm</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000009"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">30-day average</span></p></td></tr><tr><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000005"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000006"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000011"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000012">&lt;</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> 4,375</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000008"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">micromhos/cm</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000009"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">daily maximum</span></p></td></tr><tr><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000005"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">Sodium adsorption ratio</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000006"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000011"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000012">&lt;</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> 10</span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000008"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0-000007"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p></td><td class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000009"><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">see definition</span></p></td></tr></table></div><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">    The criteria set forth in this section are applicable from April first through October thirty-first.</span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">    </span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Source:</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> SL 1975, ch 16, § 1; 4 SDR 32, effective December 4, 1977; transferred from § 34:04:02:43, effective July 1, 1979; 10 SDR 145, effective July 4, 1984; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 14 SDR 86, effective December 24, 1987; 19 SDR 111, effective January 31, 1993; transferred from § 74:03:02:43, July 1, 1996; 24 SDR 10, effective July 20, 1997</span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">; 47 SDR 110, effective April 27, 2021; 49 SDR 96, effective May 14, 2023</span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">.</span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">    </span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">General Authority:</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-10"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">34A-2-10</span></a><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-11"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">34A-2-11</span></a><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-93"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">34A-2-93</span></a><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">.</span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">    </span><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000001">Law Implemented:</span><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-10"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">34A-2-10</span></a><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-11"><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0-000002">34A-2-11</span></a><span class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43C0">.</span></p><p dir="ltr" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43P0"><span xml:space="preserve" class="s4aef5a1f-705e-4dc5-bb08-e44aa1b36f43000003"> </span></p></div></body></html>