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Advanced <br /> GeoEnvironmental; Inc . <br /> 16 February 2009 <br /> AGE-NC Project No. 08-1641 <br /> Ms. Margaret Lagorio <br /> V'9 <br /> Mr. Harlin Knoll <br /> 1)< <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street <br /> Stockton, CA 95202 <br /> ti Subject: Request For Closure <br /> FIVE STAR MARINA (WEST) A-K <br /> 345 Yosemite Street, Stockton, California <br /> Dear Ms. Margaret Lagorio: <br /> On behalf of Mr.Terry McDonald,Advanced GeoEnvironmental,Inc.(AGE)has prepared this letter <br /> to request closure of the Five Star Marina (West) site locate' at 345 Yosemite Street, Stockton, <br /> California (site). <br /> Based on the results of site investigation activities to date,AGE recommends no further action and <br /> the site be closed due to the following: <br /> • Low-risk site closure as defined in Section 6.3 of Appendix A of the Tri-Regional <br /> contamination Recommendations: 1)The release has been stopped and the source of the .1ination has <br /> been removed(excavation); 2)The site has been adeqiately characterized; 3)No waters of <br /> the State, or other sensitive receptors are likely to be impacted. <br /> • Based upon data collected from the site, depicting a stable and declining plume, AGE <br /> believes continued quarterly ground water sampling from wells MW-1 through JMW-4 is not <br /> 'I <br /> longer cost effective and will not provide additional necessary information to,the ongoing <br /> investigation. <br /> Therefore, AGE is requesting discontinuation of quarterlygr ound water monitoring at the site <br /> pending closure.Additionally,a quarterly status report in letter"form for field work conducted at 345 <br /> Yosemite Street, Stockton (Five Star Marina East and West sites)will be submitted. <br /> 837 Shaw Road,Stockton,California 95215 <br /> Te.lephone (209) 467-1006 Fax (209) 467-1119 <br />