<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40"> <head> <title>Rule 74:29:11:54 Radiation standards for closure of surface facilities.</title> <META NAME="Keywords" Content="Administrative Rules 74:29:11:54"> <META NAME="Description" Content="Administrative Rules 74:29:11:54 Radiation standards for closure of surface facilities."> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 10"> <meta name=Originator content="Microsoft Word 10"> <link rel=File-List href="7429110005400d_files/filelist.xml"> <!--[if gte mso 9]><xml> <o:DocumentProperties> <o:Author>lrpr14533</o:Author> <o:LastAuthor>lrpr14296</o:LastAuthor> <o:Revision>2</o:Revision> <o:TotalTime>0</o:TotalTime> <o:Created>2008-08-11T16:33:00Z</o:Created> <o:LastSaved>2008-08-11T16:33:00Z</o:LastSaved> <o:Pages>1</o:Pages> <o:Words>210</o:Words> <o:Characters>1198</o:Characters> <o:Company>State of South Dakota</o:Company> <o:Lines>9</o:Lines> <o:Paragraphs>2</o:Paragraphs> <o:CharactersWithSpaces>1406</o:CharactersWithSpaces> <o:Version>10.6839</o:Version> </o:DocumentProperties> </xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:GrammarState>Clean</w:GrammarState> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--> <style> <!-- /* Font Definitions */ @font-face {font-family:Times; 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mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} </style> <![endif]--><!--[if gte mso 9]><xml> <o:shapedefaults v:ext="edit" spidmax="1026"/> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext="edit"> <o:idmap v:ext="edit" data="1"/> </o:shapelayout></xml><![endif]--> </head> <body lang=EN-US style='tab-interval:.5in'> <div class=Section1> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b style='mso-bidi-font-weight:normal'>74:29:11:54.<span class=GramE>&nbsp;&nbsp;Radiation</span> standards for closure of surface facilities.</b> For in situ uranium mine operations, closed surface facilities shall be considered suitable for release for unrestricted use if the following limits are not exceeded:<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(1)&nbsp;&nbsp;The concentration of radium-226 or radium-228 in soil, averaged over any 100 square meters (m<sup>2</sup>), does not exceed the background level by more than 5 picocuries per gram (pCi/g) or 0.185 becquerel per gram (Bq/g), averaged over the first 15 centimeters (cm) of soil below the surface;<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(2)&nbsp;&nbsp;The contamination of vegetation does not exceed 5 picocuries per gram (pCi/g) or 0.185 <span class=GramE>becquerels</span> per gram (Bq/g), based on dry weight, for radium-226 or radium-228; and<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>(3)&nbsp;&nbsp;The concentration of natural uranium in soil, with no radioactive decay products present, averaged over any 100 square meters (m<sup>2</sup>), does not exceed the background level by more than 30 pCi/g or 1.11 Bq/g, averaged over the top 15 cm of soil below the surface, and 150 pCi/g or 5.55 Bq/g, average concentration at depths greater than 15 cm below the surface, so that no individual member of the public will receive an effective dose equivalent in excess of 0.1 rem (Roentgen equivalent man) per year or 1 millisievert (mSv) per year.<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b style='mso-bidi-font-weight:normal'>Source:</b> 33 SDR 160, effective April 17, 2007; 34 SDR 323, effective July 2, 2008.<o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b style='mso-bidi-font-weight:normal'>General Authority:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=34-21-15">34-21-15</A>, <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=45-6B-81">45-6B-81.</A><o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><span style='mso-tab-count: 1'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><b style='mso-bidi-font-weight:normal'>Law Implemented:</b> SDCL <A HREF="/statutes/DisplayStatute.aspx?Type=Statute&Statute=45-6B-43">45-6B-43.</A><o:p></o:p></span></p> <p class=MsoNormal style='text-align:justify;tab-stops:.4in .6in .9in 1.1in 1.4in 1.6in 1.9in 2.1in 2.4in 2.6in 2.9in 3.1in 3.4in 3.6in 3.9in 4.1in'><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p>&nbsp;</o:p></span></p> </div> </body> </html>