<html> <head> <title>Rule 74:56:03:08 Upgrading of existing AST systems.</title> <META NAME="Keywords" Content="Administrative Rules 74:56:03:08"> <META NAME="Description" Content="Administrative Rules 74:56:03:08 Upgrading of existing AST systems."> <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>74:56:03:08.&nbsp;&nbsp;Upgrading existing AST systems.</b> In accordance with §&nbsp;74:56:03:04, existing AST systems may be upgraded to conform to new tank standards established in §&nbsp;74:56:03:07.</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; Existing AST systems containing noncorrosive substances do not require internal coatings. Monitoring of the pH of the tank condensate is required biannually, not to exceed 7 1/2 months between sampling. A pH of 6.8 or higher shall be maintained. If the tank is internally coated or lined, biannual monitoring is not required. Owners or operators of an AST which cannot comply with this section may request a variance from the department by submitting justification for the variance. Criteria for granting the variance are the same as those listed in §&nbsp;74:56:03:06.</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 76, effective November 29, 1987; 18 SDR 62, effective October 10, 1991; transferred from §&nbsp;74:03:30:08, 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-2-93">34A-2-93</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-101">34A-2-101.</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-2-100">34A-2-100</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-101">34A-2-101.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>