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California Regional Water Quality Control Board r <br /> Central Valley Region , ,7 <br /> Robert Schneider , Chair <br /> erry Tamminen <br /> Secretary for Sacramento Main Office Arnold Governor zenegger <br /> Goovernor <br /> Environmental Intemet Address : http ://www.swrcb . ca . gov/rwgcb5 <br /> Protection 11020 Sun Center Drive # 200 Rancho Cordova , CA 95670 -6114 <br /> Phone ( 916) 464-3291 Fax (916 ) 464 -4797 <br /> 30 January 2004 D Z ;C <br /> JAN 3 1 2004 <br /> Mr . Robert Cochran B Y' <br /> Chevron Environmental Management Company <br /> 6001 Bollinger Canyon Road <br /> San Ramon, CA 94583 - 0804 <br /> REQUEST FOR INVESTIGATION OF CHEVRON PIPELINE , WEST GRANT LINE ROAD , <br /> TRACY, SAN JOAQUIN COUNTY <br /> Staff of the Central Valley Regional Water Quality Control Board has reviewed the 8 December 2003 <br /> Field Investigation Report and Request for a Comfort Letter (Report) submitted by Treadwell & Rollo on <br /> behalf of Mr. Tom Brenkwitz, property owner of 541 West Grant Line Road in Tracy. The Report <br /> includes five sampling locations along West Grant Line Road that are parallel to the Chevron pipeline . <br /> According to the Report, since 1965 the Chevron pipeline has been an active refined fuel pipeline that <br /> runs down the centerline of West Grant Line Road . Grab groundwater samples from the five sampling <br /> locations reported total petroleum hydrocarbons (TPH) as jet fuel up to 32 , 000 micrograms per liter. <br /> Although the Report states that the pipeline has not transported jet fuel in "several years ," the detections <br /> of TPH as jet fuel are a likely result of a release from the Chevron pipeline since jet fuel is not used at <br /> businesses in the proximity of the pipeline along West Grant Line Road . <br /> Therefore, an investigation is needed to determine if groundwater and soil are polluted as a result of a <br /> release from the Chevron pipeline . By 15 March 2004, please submit a work plan to investigate soil and <br /> groundwater pollution associated with the Chevron pipeline along West Grant Line Road between Tracy <br /> Boulevard and Buthman Avenue . Analyses for soil and groundwater samples should include, but not be <br /> limited to , TPH as jet fuel , as diesel , and as gasoline, benzene, toluene, ethylbenzene, xylenes , fuel <br /> oxygenates , and any other petroleum product transported in the pipeline . If you have any questions , you <br /> may contact me at (916) 4644719 or lewisd@rb5s . swrcb . ca. gov . <br /> L9i X�Lu <br /> DEVRA LEWIS <br /> Environmental Scientist <br /> cc : Mr . Harlen Knoll , San Joaquin County Public Health Services , Stockton <br /> Mr. Criseldo Mina, City of Tracy, Department of Development and Engineering Services , Tracy <br /> Mr . Tom Brenkwitz , Tracy <br /> Mr . Greg McIver , SECOR International Incorporated , Sacramento <br /> Ms . Don' nda Himes , Treadwell & Rollo , Orinda <br /> California EliVlroninelital Protection , f (iency <br /> ♦ Ri 'rI 'c/ed Pope / <br />