<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.s95d6fc5e-0597-46e0-855d-88dab85f9fecP0 { 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.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000001 { color: black; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fec000003 { color: black; background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } p.s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000004 { 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: 12pt; line-height: 108%; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000005 { color: black; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } p.s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000006 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: center; background: white; font-family: Times; font-size: 12pt; line-height: 108%; } span.s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000007 { color: black; background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } p.s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000008 { 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.s95d6fc5e-0597-46e0-855d-88dab85f9fec000009 { color: black; background: white; font-size: 10pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:01"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000000">74:51:01:01</span></a><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000001">.  Definitions.</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">Terms</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> defined in SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-2"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">34A-2-2</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, have the same meaning when used in chapters </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> to </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:03"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:03</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, inclusive. Terms </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are not defined </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">must</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> be construed in conformance with the context and in relation to the applicable section of the standards or the statute concerned. </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">T</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">erms used in chapters </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> to </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:03"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:03</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, inclusive, </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">mean</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">:</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1)  "Attainable beneficial uses," those beneficial uses </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> can be achieved by the imposition of effluent limits required under §§ </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:07"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01:07</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:08"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01:08</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, and </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:17"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01:17</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> to </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:01:21"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:01:21</span></a><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, inclusive, and cost-effective and reasonable best management practices for nonpoint source control;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2)  "Aquatic life," an organism dependent on the water environment to either propagate or survive, or both;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3)  "Aquatic community," an association of interacting populations and stages of aquatic life in a given water body or habitat;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (4)  "Best management practices," schedules of activities, prohibitions of practice, maintenance procedures, and other management practices to prevent or reduce the pollution of surface waters of the state on a voluntary basis, including treatment requirements, operating procedures, and practices to control site runoff, spillage or leaks, sludge, waste disposal, or drainage from raw material storage;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (5)  "Bioaccumulative pollutants," pollutants </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are taken up, retained, or accumulated in the bodies of organisms and are transferred by ingestion</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> in increasing concentrations in the predator organisms</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> to the point that one or more organisms in the food chain suffer significant harm;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (6)  "Bioassay," a procedure in which the responses of organisms are used to detect or measure the presence or effect of one or more substances, wastes, effluents, or environmental factors, alone or in combination;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (7)  "Biochemical oxygen demand," a standardized laboratory test used to determine the relative oxygen requirements of waters and wastewaters;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (8)  "Biological integrity," the ability to support and maintain a balanced, integrated, adaptive community of organisms having a species composition, diversity, and functional organization comparable to that of the natural habitat of the region;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (9)  "Black Hills Trout Management Area," all the waters in the Black Hills within the following boundary: from the South Dakota-Wyoming state line and the Redwater River (inclusive) to U.S. Highway 85, then south on U.S. Highway 85 to I-90, then southeast on I-90 to U.S. Highway 16T (16B in Rapid City), then south on U.S. Highway 16T to S.D. Highway 79, then south on S.D. Highway 79 to Maverick Junction, then west on Highway 18 to Edgemont, then northwest along the Burlington Northern Railroad to the South Dakota-Wyoming state line, then north along the state line to the point of the beginning;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (10)  "Board," Water Management Board;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (11)  "Coldwater marginal fish life propagation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> support aquatic life and are suitable for stocked catchable-size coldwater fish during portions of the year, but which, because of critical natural conditions including low flows, siltation, or warm temperatures, are not suitable for a permanent coldwater fish population. Warmwater fish may also be present;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">2</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Coldwater permanent fish life propagation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are capable of supporting aquatic life and are suitable for supporting a permanent population of coldwater fish from natural reproduction or fingerling stocking. Warmwater fish may also be present;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">3</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Commerce and industry," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are suitable for use as cooling water, industrial process water, navigation, and production of hydroelectric power;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Criterion," a designated concentration of a substance, measure of a physical factor, or narrative statement that, when not exceeded, will protect an organism, a biological community, or a prescribed beneficial use or water quality;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">5</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Designated beneficial uses," those beneficial uses specified in chapters </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:02"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:02</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> and </span><a href="https://sdlegislature.gov/Rules?Rule=74:51:03"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">74:51:03</span></a><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> for each water body or segment</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> whether or not they are being attained;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">6</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Domestic water supply," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are suitable for human consumption, culinary or food processing purposes, and other household purposes after suitable conventional treatment;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">17</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Epilimnion," the upper stratum of </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">a</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> water column</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, in a thermally-stratified waterbody</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">18</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Existing beneficial uses," uses actually attained in surface waters of the state on March 27, 1973, whether or not they are so designated;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">19</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Fish and wildlife propagation, recreation, and stock watering," a beneficial use classification assigned to all surface waters of the state that</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">:</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">        (a)  M</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">ay support recreation</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> in and on the water</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> and fish and aquatic life, when sufficient quantities of water are present for sufficient duration to support those uses;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">        (b)  P</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">rovide habitat for aquatic and semiaquatic wild animals and fowl;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">        (c)  P</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">rovide natural food chain maintenance; and</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">        (d)  A</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">re of suitable quality for watering domestic and wild animals;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">0</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Geometric mean," the nth root of a product of n factors;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">1</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Handbook 69," </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">Maximum Permissible Body Burdens and Maximum Permissible Concentrations of Radionuclides in Air and in Water for Occupational Exposure, recommendations of the National Committee on Radiation Protection, National Bureau of Standards Handbook 69, (August 1963)</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">2</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Immersion recreation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are suitable for uses where the human body may come in direct contact with the water, to the point of complete submersion</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> and where water may be accidentally ingested or where certain sensitive organs such as the eyes, ears, and nose may be exposed to water;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Impact," a man-induced change in the chemical, physical, or biological quality or condition of surface waters of the state;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Impairment," a detrimental effect on the aquatic community caused by an impact that prevents attainment of the designated use;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">25</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Irrigation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are suitable for irrigating farm lands, ranch lands, gardens, and recreational areas;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">26</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Lake," a pond, reservoir, or other body of water, created by either natural or artificial means, but not a pond or appurtenance that is used for the treatment and disposal of wastes and that is permitted for such uses;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">27</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Limited-contact recreation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are suitable for boating, fishing, and other water-related recreation</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> other than immersion recreation</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> where a person's water contact </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">is</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> limited to the extent that infections of </span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">the </span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">eyes, ears, respiratory or digestive systems, or urogenital areas </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">are</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> normally avoided;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">28</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Metalimnion," the middle layer of a water column</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, in a thermally stratified waterbody</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">29</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "µg/L," micrograms per liter, a measure of concentration;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">0</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "mg/L," milligrams per liter, a measure of concentration;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">1</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "micromhos/cm," micromhos per centimeter, a measure of electrical conductivity;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">2</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Nonpoint source," a source of pollution that is not defined as a point source;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">3</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Parameter," a chemical, physical, or biological characteristic </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> affects the use of surface waters of the state;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (3</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "pCi/L," picocuries per liter, a measure of radioactive concentration;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">35</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Segment," a continuous stretch of water found between two points in the bed of a stream;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">36</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Sodium adsorption ratio," a calculated value that evaluates the sodium hazard of irrigation water based on the Gapon equation and expressed by the mathematical expression:</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000004"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000004"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000005">        Sodium Adsorption Ratio = </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000006"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000007"><img src="data:image/gif;base64,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" style="width: 1.2395834in; height: 0.8125in" alt="Picture 1" /></span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0-000008"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000009"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">where Na</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"><sup>+</sup></span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, Ca</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"><sup>+2</sup></span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">, and Mg</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"><sup>+2</sup></span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> are expressed as milliequivalents per liter;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">37</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Spawning bed," a place where fish spawn;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">38</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Stream," a river, creek, tributary, or other watercourse;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">39</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Surface water</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">s</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> of the state," lakes, ponds, streams, rivers, wetlands, and any other body or accumulation of water on the land surface that is considered to be waters of the state, but not waste treatment systems, including treatment ponds, lagoons, leachate collection ponds, or stormwater retention ponds designed to meet the requirements </span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">under </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">§ 402 or § 404 of the Federal Water Pollution Control Act as amended to February 4, 1987</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">0</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Thermocline," the depth range characterized by a rapid change in temperature with depth</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">in a thermally stratified waterbody</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">1</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Thirty-day average," the arithmetic mean of a minimum of </span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">three </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">consecutive grab or composite samples taken on separate weeks in a 30-day period;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">2</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Toxic pollutant," a pollutant or combination of pollutants, including disease-causing agents, which, upon exposure, ingestion, inhalation, or assimilation into an organism, either directly from the environment or indirectly by ingestion through food chains, </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">may</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> cause death, disease, behavioral abnormality, cancer, genetic mutation, physiological malfunctions including reproductive malfunction, or physical deformity, in an organism or its offspring;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (4</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">3</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Warmwater marginal fish life propagation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> will support aquatic life and more tolerant species of warmwater fish naturally or by frequent stocking and intensive management but which suffer frequent fish kills because of critical natural conditions;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">44</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Warmwater permanent fish life propagation," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> support aquatic life and are suitable for the permanent propagation or maintenance, or both, of warmwater fish. Stocked coldwater fish may also be present;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">45</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Warmwater semipermanent fish life propagation waters," a beneficial use assigned to surface waters of the state </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">that</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> support aquatic life and are suitable for the propagation or maintenance, or both, of warmwater fish</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> but which may suffer occasional fish kills because of critical natural conditions;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">46</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Weekly average temperature," the mathematical mean of multiple, equally spaced daily temperature measurements over a </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">seven</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">-day consecutive period, with a minimum of three data points equally spaced throughout each day;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">47</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Wetlands," those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">,</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> including swamps, marshes, bogs, and similar areas;</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    (</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">48</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">)  "Zone of mixing," an area in a stream where an effluent or discharge mixes with the upstream water.</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000001">Source:</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> SL 1975, ch 16, § 1; 4 SDR 32, effective December 4, 1977; 5 SDR 21, effective September 21, 1978; transferred from § 34:04:02:01, 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 § 74:03:02:01, July 1, 1996; 24 SDR 10, effective July 20, 1997; 25 SDR 98, effective January 27, 1999; 31 SDR 29, effective September 13, 2004; 35 SDR 253, effective May 12, 2009; 41 SDR 109, effective January 12, 2015</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">; 49 SDR 96, effective May 14, 2023</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">.</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000001">General Authority:</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-93"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">34A-2-93</span></a><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">.</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">    </span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000001">Law Implemented:</span><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-2-11"><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">34A-2-</span><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0-000002">11</span></a><span class="s95d6fc5e-0597-46e0-855d-88dab85f9fecC0">.</span></p><p dir="ltr" class="s95d6fc5e-0597-46e0-855d-88dab85f9fecP0"><span xml:space="preserve" class="s95d6fc5e-0597-46e0-855d-88dab85f9fec000003"> </span></p></div></body></html>