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�T <br /> SECOR vuww secor com <br /> p� INTERNATIONAL <br /> E C ® R INCORPORATED 3017 Kilgore Road Suite 100 <br /> Rancho Cordova CA 95670 <br /> • 916 661 0400 TEL <br /> 916-6610430 FAX } <br /> December 11, 2003 MDEC T40 4.� <br /> Ms Victoria McCartney a �A <br /> San Joaquin County Environmental Health Division DEC 12 2003 <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 ENVIRONMENT HEALTH AA <br /> RE November 2003 Batch Groundwater Extraction Report PERMIT/SERVICES a -a,yr <br /> Chevron Service Station 9-1452 <br /> 334 East Main Street 1 <br /> Ripon, California ; <br /> SECOR Project No 77CH 91452 03 0370 , 41 <br /> �a <br /> Dear Ms McCartney <br /> 3 <br /> SECOR International Incorporated (SECOR), on behalf of Chevron Environmental Management <br /> Company (Chevron), presents data for the November 18, 2003 batch groundwater extraction event <br /> at the site referenced above (Figure 1) This work was performed In accordance with SECOR's <br /> Work Plan for lntenm Remedial Measures, dated June 26, 2003 This work plan was approved by <br /> the San Joaquin County Environmental Health Division (County) as indicated in their letter dated <br /> October 16, 2003 (Attachment 1) E <br /> On November 18, 2003, Integrated Wastestream Management (IWM), under the supervision of u <br /> SECOR, extracted approximately 2,400 gallons of groundwater from well MW-8 (Figure 2) using a <br /> submersible pump at a pumping rate of approximately 5 gallons per minute (gpm) Based on the <br /> data collected during this event, approximately 0 2 pound of dissolved methyl tertiary butyl ether <br /> (MtBE) was removed In the groundwater Extracted groundwater analytical data and a MtBE mass <br /> removal estimate are presented In Tables 1 and 2, respectively A certified analytical report and <br /> chain-of-custody document Is Included in Attachment 2 A field data sheet for the batch extraction <br /> event is included In Attachment 3 <br /> If you have any questions or require additional information, please feel free to contact David Evans <br /> of SECOR at (916) 861-0400, extension 234 or Bob Cochran of Chevron at (925) 842-9655 <br /> Y <br /> Sincerely, x <br /> SECOR International Incorporated <br /> Karam Parmar avid M Evans z; <br /> Staff Engineer Project Manager <br /> I, <br /> 1Chevron1914521REP0RT51Batch Extraction\Batch Extraction November 2003 doc <br /> i <br /> I <br />