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SECOR www secor corn <br /> S E C ® R INTERNATIONAL <br /> INCORPORATED 3017 Kilgore Road Suite 100 <br /> Rancho Cordova CA 95670 <br /> 916 8610400 TEL <br /> 916 861 0430 Fax <br /> January 05, 2004 <br /> Ms Victoria McCartney <br /> San Joaquin County Environmental Health Division JAN O 7 2D04 r <br /> 304 East Weber Avenue, Third Floor k4 <br /> Stockton, California 95202 ENVIRONMENT HEALPH <br /> PERMIT/SERVICES ,l K <br /> RE December 2003 Batch Groundwater Extraction Report <br /> Chevron Service Station 9-1452 ��tire, <br /> ; <br /> 334 East Main Street <br /> Ripon, California <br /> SECOR Project No 77CH 91452 03 03701 Q <br /> afti <br /> Dear Ms McCartney } { <br /> SECOR International Incorporated (SECOR), on behalf of Chevron Environmental Management <br /> Company (Chevron), presents data for the December 4, 2003 batch groundwater extraction event at <br /> the site referenced above (Figure 1) This work was performed in accordance with SECOR's Work 'r <br /> ,m <br /> Plan for Interim Remedial Measures, dated June 26, 2003 This work plan was approved by the San <br /> t <br /> Joaquin County Environmental Health Division (County) as Indicated in their letter dated October 16, <br /> 2003 (Attachment 1) <br /> On December 4, 2003, Integrated Wastestream Management (IWM), under the supervision of " y <br /> SECOR, extracted approximately 2,417 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 4 <br /> (MtBE) was removed in the groundwater To date, approximately 0 4 cumulative pound of dissolved <br /> MtBE has been removed in the groundwater Extracted groundwater analytical data and a MtBE <br /> mass removal estimate are presented in Tables 1 and 2, respectively A certified analytical report "A <br /> and chain-of-custody document Is Included in Attachment 2 A field data sheet for the batch <br /> extraction event is included in Attachment 3 Y` <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 /> N A41 <br /> Sincerely, Tr <br /> ;SE'0R Interna f Incorporated ;µ <br /> Karam Parmar avid M Evans a <br /> Staff Engineer Project Manager s <br /> 3� JJ <br /> �RI <br /> X41 <br /> u <br /> 31t <br /> J1 <br /> ! <br /> 11Chevron1914521REPORTS1Batch Extraction\December 2003 Batch Extraction doc <br /> 4 <br />