<html> <head> <title>Rule 74:51:01:51 Criteria for limited contact recreation waters.</title> <META NAME="Keywords" Content="Administrative Rules 74:51:01:51"> <META NAME="Description" Content="Administrative Rules 74:51:01:51 Criteria for limited contact recreation waters."> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Generator content="Microsoft Word 15 (filtered)"> <style> <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Times; panose-1:2 2 6 3 5 4 5 2 3 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; font-size:10.0pt; font-family:"Times",serif;} .MsoChpDefault {font-size:10.0pt; font-family:"Calibri",sans-serif;} /* Page Definitions */ @page WordSection1 {size:8.5in 11.0in; margin:49.7pt 63.35pt 49.7pt 1.0in;} div.WordSection1 {page:WordSection1;} --> </style> </head> <body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'> <div class=WordSection1> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>74:51:01:51.&nbsp;&nbsp;Criteria for limited contact recreation waters.</b> The criteria of parameters for limited contact recreation waters and their allowable variations that are not included under &#167;&nbsp;74:51:01:55 and Appendix B, unless set under &#167;&nbsp;74:51:01:24, are as found in the following table and only apply May 1 - September 30:</span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;</span></p> <table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 style='margin-left:9.9pt;border-collapse:collapse;border:none'> <thead> <tr> <td width=240 valign=top style='width:2.5in;border:solid windowtext 1.0pt; border-bottom:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><b><span style='font-size: 12.0pt;font-family:"Times New Roman",serif'>Parameter</span></b></p> </td> <td width=108 valign=top style='width:81.0pt;border:solid windowtext 1.0pt; border-left:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Criteria</span></b></p> </td> <td width=132 valign=top style='width:99.0pt;border:solid windowtext 1.0pt; border-left:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Unit of Measure</span></b></p> </td> <td width=156 valign=top style='width:117.0pt;border:solid windowtext 1.0pt; border-left:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Special Conditions</span></b></p> </td> </tr> </thead> <tr> <td width=240 valign=top style='width:2.5in;border:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>Dissolved oxygen as measured anywhere in the water column of a non-stratified water body, or in the epilimnion and metalimnion of a stratified water body</span></p> </td> <td width=108 valign=top style='width:81.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=right style='text-align:right'><u><span style='font-family:"Times New Roman",serif'>&gt;</span></u><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> 5.0</span></p> </td> <td width=132 valign=top style='width:99.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>mg/L</span></p> </td> <td width=156 valign=top style='width:117.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>daily minimum</span></p> </td> </tr> <tr> <td width=240 valign=top style='width:2.5in;border-top:none;border-left:solid windowtext 1.0pt; border-bottom:none;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><i><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>Escherichia coli</span></i></p> </td> <td width=108 valign=top style='width:81.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=right style='text-align:right'><u><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>&lt;</span></u><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> 630</span></p> </td> <td width=132 valign=top style='width:99.0pt;border:none;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>/100mL</span></p> </td> <td width=156 valign=top style='width:117.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>geometric mean based on a minimum of 5 samples obtained during separate 24-hour periods for any 30-day period</span></p> </td> </tr> <tr> <td width=240 valign=top style='width:2.5in;border:solid windowtext 1.0pt; border-top:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><i><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;</span></i></p> </td> <td width=108 valign=top style='width:81.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=right style='text-align:right'><u><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>&lt;</span></u><span style='font-size:12.0pt;font-family:"Times New Roman",serif'> 1178</span></p> </td> <td width=132 valign=top style='width:99.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>&nbsp;</span></p> </td> <td width=156 valign=top style='width:117.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>in any one sample</span></p> </td> </tr> <tr> <td width=240 valign=top style='width:2.5in;border:solid windowtext 1.0pt; border-top:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>Microcystin</span></p> </td> <td width=108 valign=top style='width:81.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=right style='text-align:right'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>8</span></p> </td> <td width=132 valign=top style='width:99.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>µg/L</span></p> </td> <td width=156 rowspan=2 valign=top style='width:117.0pt;border-top:none; border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>Not to be exceeded in more than three 10-day assessment periods over the course of the recreation season</span></p> </td> </tr> <tr> <td width=240 valign=top style='width:2.5in;border:solid windowtext 1.0pt; border-top:none;padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>Cylindrospermopsin</span></p> </td> <td width=108 valign=top style='width:81.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=right style='text-align:right'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>15</span></p> </td> <td width=132 valign=top style='width:99.0pt;border-top:none;border-left: none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt; padding:0in 5.4pt 0in 5.4pt'> <p class=MsoNormal align=center style='text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>µg/L</span></p> </td> </tr> </table> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;</span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> SL 1975, ch 16, &#167;&nbsp;1; 4 SDR 32, effective December 4, 1977; transferred from &#167;&nbsp;34:04:02:41, effective July 1, 1979; 10 SDR 145, effective July 4, 1984; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 19 SDR 111, effective January 31, 1993; transferred from &#167;&nbsp;74:03:02:41, July 1, 1996; 24 SDR 10, effective July 20, 1997; 35 SDR 253, effective May 12, 2009; 42 SDR 103, effective January 19, 2016</span><span style='font-size:12.0pt;font-family: "Times New Roman",serif'>; 47 SDR 110, effective April 27, 2021</span><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>.</span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>General Authority:</b> SDCL </span><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>34A-2-10, </span><span style='font-size:12.0pt;font-family:"Times New Roman",serif'>34A-2-11, 34A-2-93.</span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-10">34A-2-10</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-11">34A-2-11.</A></span></p> <p class=MsoNormal style='text-align:justify'><span style='font-size:12.0pt; font-family:"Times New Roman",serif'>&nbsp;</span></p> </div> </body> </html>