<html> <head> <title>Rule 74:56:05:12 Corrective action or Tier 3 assessment required.</title> <META NAME="Keywords" Content="Administrative Rules 74:56:05:12"> <META NAME="Description" Content="Administrative Rules 74:56:05:12 Corrective action or Tier 3 assessment required."> <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>74:56:05:12.&nbsp;&nbsp;Corrective action of Tier 3 assessment required.</b> If soil contaminant levels exceed the Tier 2 action levels, the responsible person must submit a corrective action plan to the department for approval or, if the site meets the criteria listed below, the responsible person may calculate Tier 3 action levels using site-specific models. If the department determines that the plan will reduce the risks associated with the site to below the criteria in subdivisions (2) and (3) of §&nbsp;74:56:05:11, the department shall approve the plan and the responsible person must implement the corrective action.</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; The criteria for progressing to a Tier 3 assessment are:</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;The assumptions used to calculate the Tier 2 action levels are not applicable to actual site conditions;</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (2)&nbsp;&nbsp;It is likely that Tier 3 action levels will be different from Tier 2 action levels; and</font></p> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (3)&nbsp;&nbsp;The cost of performing a Tier 3 assessment and implementation of corrective action to Tier 3 action levels is likely to be substantially less than the cost of correction action under Tier 2.</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> 22 SDR 86, effective December 18, 1995; transferred from §&nbsp;74:03:33:12, 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-2-99">34A-2-99</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-101">34A-2-101</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-12-7">34A-12-7.</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-2-99">34A-2-99</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-2-101">34A-2-101</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34A-12-10">34A-12-10.</A></font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>