<html> <head> <title>Rule 74:52:03:27 Net effluent limits.</title> <META NAME="Keywords" Content="Administrative Rules 74:52:03:27"> <META NAME="Description" Content="Administrative Rules 74:52:03:27 Net effluent limits."> <meta name=Generator content="Microsoft Office HTML Filter 2.0"> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Originator content="Microsoft Word 10"> <style> <!-- --> </style> </head> <body lang=EN-US> <div> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>74:52:03:27.&nbsp;&nbsp;Net effluent limits.</b> If part of a discharger's process wastewater is not being discharged into waters of the state because it is disposed into a well, into a POTW, or by land application thereby reducing the flow or level of pollutants being discharged into waters of the state, applicable effluent standards and limits for the discharge in a permit shall be adjusted to reflect the reduced raw waste resulting from such disposal. Net effluent limits and standards in the permit shall be calculated by one of the following methods:</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1)&nbsp;&nbsp;If none of the waste from a particular process is discharged into waters of the state and effluent limitation guidelines provide separate allocation for wastes from that process, all allocations for the process shall be eliminated from calculation of permit effluent limit or standards; and</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (2)&nbsp;&nbsp;In all other cases, effluent limits shall be adjusted by multiplying the effluent derived by applying effluent limitation guidelines to the total waste stream by the amount of wastewater flow to be treated and discharged into waters of the state and dividing the result by the total wastewater flow. Effluent limits and standards so calculated may be further adjusted as allowed in chapter 74:52:07 to make them more or less stringent if discharges to wells, publicly owned treatment works, or by land application change the character or treatability of the pollutants being discharged to receiving waters. This method may be algebraically expressed as</font></p> <p align=center><font size=3 face="Times New Roman">&nbsp;</font></p> <p align=center><font size=3 face="Times New Roman">P = <u>E X N</u></font></p> <h2><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; T</font></h2> <p align=center><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">where</font></span><font size=3 face="Times New Roman"> P is the permit effluent limit, E is the limit derived by applying effluent guidelines to the total waste stream, N is the wastewater flow to be treated and discharged to waters of the state, and T is the total wastewater flow.</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> 14 SDR 86, effective December 24, 1987; 19 SDR 122, effective February 21, 1993; transferred from §&nbsp;74:03:19:28, July 1, 1996.</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>General Authority:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-30">34A-2-30.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-13">34A-2-13</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-36">34A-2-36</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-38">34A-2-38.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>