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orevron <br /> pili tl ri ii fI) <br /> Chevron <br /> 97 DEC 12 PM 2: 18 <br /> December 11, 1997 Chevron Pipe Line Con"" <br /> 4000 Executive Parkway,Suite 400 <br /> San Ramon,CA 94583 <br /> P.0.Box 6059 <br /> Mr.Michael J. Infinim,Jr. San Ramon,CA 94583-0759 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division Katie L.Hower <br /> Project Manager,California Site Remediation <br /> P.O. Box 388 (510)842-6677 <br /> Stockton, CA 95201-0388 <br /> RAqWA for Site Closure-Cintra Group Property <br /> San Joaquin County APN No.238.030-22,Tracy,California 95376 <br /> Dear Michael: <br /> Please find attached the subject report for site investigation activities performed at the Cintra property located in <br /> Tracy,California,which was prepared by Geomatrix Consultants,Inc. (Geomatrix)on behalf of Chevron Pipe Line <br /> Company(CPL). The letter report describes the November 21, 1997 field work performed at the property and <br /> summarizes the analytical results from soil and groundwater samples collected from the property. As per CPL's <br /> October 9, 1997 Letter work plan to you regarding this property, soil and groundwater constituents were analyzed <br /> for the following: <br /> • Soil samples were analyzed for benzene,toluene,ethylbenzene,and total xylenes(BTEX),polyaromatic <br /> hydrocarbons(PAHs),and total extractable petroleum hydrocarbons(TEPH)quantified against crude oil. <br /> • Groundwater samples were analyzed for BTEX,PAHs,total purgeable petroleum hydrocarbons(TPPH) <br /> quantified against gasoline,TEPH quantified against diesel,and methyl tertiary butyl ether(MTBE). <br /> The specified laboratory methods used to analyze the aforementioned constituents are discussed in Geomatrix's <br /> As summarized in the attached report,soil and groundwater samples were non-detect for all constituents analyzed. <br /> Based on my understanding of your October 1, 1997 meeting with Elizabeth Lu, representing CPL,the site meets <br /> Public Health Services-Environmental Health Division's(PHS-EHD)requirements for closure;therefore, CPL <br /> requests that the site be closed and removed from PHS-EHD's"Contaminated Site List". <br /> If you have any questions or require additional information,please call Elizabeth Lu at(510/842-6855). <br /> Sincerely, j <br /> K.L. Hower <br /> Project Manager <br /> California Site Remediation <br />