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ms•, ! � r .t � ��..�.��P '�iiTiE t r��'.S" ' � ��f,. � �, .. ,-3 � - � ""gip'- "�=- -�� ��. .9, <br /> e <br /> { <br /> Chevron <br /> Chevron U.S.A. Irc. <br /> d <br /> z�- on,Ca <br /> 2410 Camino Ramon,San Ramlifornia•None 1115 8,12-0500 <br /> 1`4+ AIj,[Udran:P0.6a HG4.S-'n+3- Sd3 O 3d <br /> Marketing Department <br /> July 29, 1991 <br /> Mr. Steve Schneider5 <br /> u �+ <br /> San Joaquin County Environmental Hcalth Lry. ° i t U <br /> P.O. Box 2009 <br /> Stockton,CA 95201 AUG a 5 1'vl <br /> ENVIRONMENTAL HEALTH <br /> Re: Chevron S.S.#9-6171 PERMIT/SERVICES <br /> 6633 Pacific Avenue,Stockton,CA <br /> Dear Mr. Schneider: <br /> Enclosed is a report dated June 18, 1991 which describes groundwater monitoring by Chevron's <br /> consultant, Sierra Environmental (Sierra), on June 6, 1991 at the site referenced above. <br /> Groundwater gradient direction and levels of petroleum hydrocarbons were consistent w th <br /> previous observations. <br /> As we discussed on the telephone today, I would like to install an additional groundwater <br /> monitoring well directly downgradient of the former underground fuel storage tanks while the ' <br /> service station is closed during upcoming construction activities: Any help which you could <br /> provide to allow this work to be performed in conjunction with Chevron's construction schedule <br /> would be greatly appreciated. I have instructed Sierra to prepare a work plap for your review. I <br /> will keep you informed of Chevron's proposed construction schedule. <br /> If you have any questions or comments,you may contact me at(415)842-8658. <br /> Sincerely, <br /> 7/_ -� <br /> G <br /> Clint B. Rogers <br /> Environmental Engineer <br /> Enclosure <br /> ce: Beth Thayer,Central Valley RNVQCB,Sacramento,CA <br /> Wilbur Smith II,Sims-Grupe hlgmt.,374 Lincoln Center,Stockton,CA 95207 <br /> �' Sharon Halper,Sierra Environmental,Martinez,CA(w/o enclosure) <br />