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L � � <br /> CONSULTING ENGINEERS & GEOLOGISTS, INC. <br /> 812 W.Wabash -Eureka,CA 95501-2138-707-441-8855•FAX 707.441-8877-shn1nfo0shr-wVr.com <br /> L <br /> Reference: 007152 <br /> May 22,2009 <br /> L Mr. Harlin Knoll <br /> San Joaquin County Health Services <br /> Environmental Health Division <br /> 600 East Main Street <br /> LStockton,CA 95202-3029 <br /> Subject: First Quarter 2009 Groundwater Monitoring Report,Western Oil and <br /> LSpreading,Inc:Acampo Plant Site,Acampo,California;Case No.1927 <br /> Dear Mr.Knoll: <br /> SHN Consulting Engineers&Geologists,Inc(SHN)is providing you with this first quarter 2009 <br /> groundwater report for the Western Oil and Spreading,Inc.Acampo Plant Site. This work was <br /> L performed on behalf of Western Oil and Spreading,Inc. SHN performed groundwater monitoring <br /> at the site on March 3,2009. In the Recommendations Section of this report we are proposing to <br /> reduce the groundwater monitoring frequency to semi.-annually and to eliminate analytical tests <br /> L that have consistently been non-detectable for specific constituents. We will implement these <br /> recommendations during the June 2009 monitoring event. <br /> LIf you have any questions please call me at 707-441-8855. <br /> Sincerely, <br /> LSHN Consulting Engineers&Geologists,Inc. <br /> John o,P.E. <br /> Project Manager <br /> JJA/JLL:Ims <br /> Enclosure: Report <br /> c.w/encl.: Chris Walker,WOS <br /> James Barten,RWQCB,Central Valley Region <br /> L <br /> L <br /> L - <br /> \\eureka\Projects\2007\007152-WOS\PUBS\rpt\Mo90511-1QMM.doc <br /> L <br />