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Chevron Environmental Rohert 1).Mihalovich <br /> Management Company Pipeline Program Managcr <br /> Property Management <br /> 6001 Bollinger Canyon Road <br /> P_O_Box 6012 <br /> San Ramon,CA 94583-0712 <br /> Tel(925)842-1341 <br /> Fax(925)842-0213 <br /> October 18, 2001 C h e v r o ff e x all;�u . <br /> Ms.Megan Cambridge,Chief t <br /> Expedited Remedial Action Program UnitT <br /> Northern California—Central-Cleanup Operations Branch <br /> Department of Toxic Substances Control <br /> 8800 Cal Center Drive,Third Floor <br /> Sacramento,CA 95826-3268 <br /> Request for Review <br /> Results of the Updated Human Health Risk Screening Evaluation Letter <br /> and Report of Additional Soil and Groundwater Investigation <br /> Pombo Property (Site#101269/APN 232-170-07) <br /> 1755 West 111h Street <br /> Tracy, California <br /> Dear Ms.Cambridge: <br /> Enclosed please find the subject documents for your office's review. The document incorporates the <br /> results of additional soil and groundwater samples that were collected after DTSC's review of the <br /> screening health risk assessment to address changes in California Regional Water Quality Control <br /> Board,Central Valley Region(RWQCB) requirements. <br /> It is Chevron Environmental Management Company's (Chevron's) understanding that the DTSC <br /> accounting site file is still open and should have sufficient funds'for DTSC staff to proceed with staff <br /> review of the subject document. If you require any assistance with administrative matters pertinent to <br /> Chevron's account,please contact,Penny Fottrell of Geomatrix Consultants (Geomatrix) who is the <br /> current project coordinator(instead of Elizabeth Lu). In addition,for your information,I am the new <br /> Chevron project manager in place of Katie Hower. <br /> If you have any questions or require additional information, please call Penny at(925) 842-1343. <br /> Since <br /> Robert D. Mihalovich <br /> cc: Ms. Wendy Cohen,RWQCB (letters only) <br /> Mr. Michael J. Infurna,Jr., SJCPHS-EHD (letters only);? <br /> Mr. Ernie Pombo,Jr. (cover letter only) <br /> West Side Irrigation District(cover letter only) <br /> Mr. Gary Foote,Geomatrix (cover letter only) <br /> Attachments: October 4, 2001 Geomatrix letter and December 2000 Geomatrix report <br />