<html> <head> <title>Rule 74:56:05:11 Tier 2 action levels -- Criteria.</title> <META NAME="Keywords" Content="Administrative Rules 74:56:05:11"> <META NAME="Description" Content="Administrative Rules 74:56:05:11 Tier 2 action levels -- Criteria."> <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>74:56:05:11.&nbsp;&nbsp;Tier 2 action levels -- Criteria.</b> The responsible person must calculate Tier 2 action levels based on actual site conditions, as follows:</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;Toxicity information must be obtained from sources consistent with EPA's &quot;Risk Assessment Guidance for Superfund&quot; (1989). The department may allow the development of a toxicity value if required and applicable toxicological data are available;</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;The excess lifetime cancer risk may not exceed 1:100,000 for all pathways;</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; (3)&nbsp;&nbsp;The chronic noncancer risk may not exceed a hazard index of one for all pathways;</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; (4)&nbsp;&nbsp;Reasonable maximum exposure default values as determined in EPA's &quot;Risk Assessment Guidance for Superfund&quot; (1989) must be used for exposure assessments or site-specific exposure data may be used with the permission of the department;</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; (5)&nbsp;&nbsp;&quot;Tier 2 RBCA Guidance Manual for Risk-Based Corrective Action&quot; (1995a; 1995b) is the source for fate and transport models for development of Tier 2 action levels;</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; (6)&nbsp;&nbsp;The department shall approve the location of monitoring points to ensure compliance with the South Dakota groundwater quality standards in chapter 74:54:01 and the conditions listed in subdivisions (2) and (3) in this section.</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;74:03:33:11, 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> <p><font size=3 face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>References:</b> Pages 6-32 to 6-52, inclusive, and page 7-15, &quot;Risk Assessment Guidance for Superfund, Volume I, Human Health Evaluation Manual (Part A)&quot; December 1989, United States Environmental Protection Agency, Office of Emergency and Remedial Response, 401 M Street, SW(OS-230), Washington, DC 20460, (202)475-9486. Copies may be obtained from the address listed. Cost: $48.</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; &quot;Tier 2 RBCA Guidance Manual for Risk-Based Corrective Action,&quot; June 1995a, 48 pages, Groundwater Services, Inc., 5252 Westchester, Suite 77005, Houston, Texas 77005, (713)663-6600. Copies may be obtained from the address listed. Cost: $75 (includes Appendix B below).</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; &quot;Tier 2 RBCA Guidance Manual for Risk-Based Corrective Action, Appendix B: Tier 1/Tier 2 RBCA Modeling Guidelines and Spreadsheet System&quot; June 1995b, 34 pages, Groundwater Services, Inc., 5252 Westchester, Suite 77005, Houston, Texas 77005, (713)663-6600. Copies may be obtained from the address listed. Cost: $75 (includes guidance manual above).</font></p> <p><font size=3 face="Times New Roman">&nbsp;</font></p> </div> </body> </html>