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Chevron <br /> Chevron <br /> i <br /> Chevron Products Company <br /> 6001 Bollinger Canyon Road <br /> February 27 1997 Building L <br /> San Ramon CA 94583 <br /> P 0 Box 6004 <br /> San Ramon CA 94583 0904 <br /> Mr Ron Rowe Marketing-Sales West <br /> San Joaquin County Public Health Services Phone 510 842 9500 <br /> P O Boa 388 <br /> Stockton, CA 95201-0388 <br /> Re Chevron Station# 9-8264, 3775 Tracy Blvd , Tracy, CA <br /> Attached GroundVvdter Monitoring Report(Blaine Tech, 7/17196) <br /> Dear Mr Rowe <br /> Please find attached a report dated July 17, 1996 which was prepared by Chevron's consultant, Blaine <br /> Tech Services, Inc (Blaine Tech), to describe the results of groundwater monitoring that was perfornne8t ` <br /> the subject site on May 24, 1996 <br /> During their May site visit Blaine Tech gauged and sampled all four site-related monitonng wells The =-- <br />• measured direction of groundwater flow was toward the east Groundwater samples from each well werul <br /> analyzed for the presence of TPHGas, BTEX constituents, TPHDiesel, and MTBE In addition, samples -- <br /> collected from well MW-1 were analyzed for total oil and grease, soluble metals, semi-volatile organic ,= <br /> compounds (SVOC's), and halogenated volatile organic compounds (HVOC's) <br /> Except for the presence of l 8 ppb toluene at well MW-4, there were no gasoline or gasoline constituents =-+ <br /> detected at any of the wells There were no detections of TPHDiesel at any of the site wells There was <br /> MTBE detected at wells MW-3 and MW-4 only Samples from well MW-1 did not detect total oil and <br /> grease, HVOC's or SVOC's There were trace(13 ppb) detections of Zinc measured in groundwater at <br /> well MW-I All other soluble metals were non-detect <br /> If you have any questions or comments, please contact me directly at(510) 842-8695 <br /> Sincerely, <br /> &* <br /> Brett L Hunter <br /> Environmental Engineer <br /> Site Assessment and Rernediatnon <br /> Attachment <br /> cc City of Tracy Fire Department, Prevention Division, 325 E 10th St Tracy, CA 95376 <br /> Elizabetli Thayer Central Valley RWQCB, Sacramento, CA <br /> Russell D Keil Jr, Keil Sonoma Corp , 244 Kearny St , San Francisco, CA 94108 <br /> s <br />