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[aR E <br /> FUGRO WEST, INC. <br /> 1050 Melody Lane,Suite 160 <br /> June 26, 1995 Roseville,California 95678 <br /> Project No. 9347-0020 Tel: (916)782-2110 <br /> FAX: (916)786-7830 <br /> Ms. Mary Meays v � <br /> San Joaquin County Public Health Services <br /> Environmental Health Division 0 5 1995 <br /> Post Office Box 388 <br /> Stockton, California 95201-0388 ENVIRONMEfviAI HE <br /> PERWSERVICES� <br /> Subject: Shell Service Station (WIC No. 204-7525-0104) <br /> 6131 Pacific Avenue, Stockton, California <br /> Dear Ms. Meays: <br /> Fugro West, Inc., (Fugro) is providing this letter in response to the June 14, 1995, <br /> correspondence from the San Joaquin County Public Health Services, Environmental Health <br /> Division (SJCPHS/EHD) to Shell Oil Products Company (Shell). The following are <br /> modifications to our proposed investigation on the subject site (figure attached), as requested by <br /> the SJCPHS/EHD: <br /> • Prior to submitting soil samples to the laboratory, Fugro will obtain the concurrence of <br /> the SJCPHS/EHD regarding which samples will be analyzed. <br /> • The soil borings will be abandoned with cement/bentonite grout using a tremmie pipe. <br /> The SJCPHS/EHD will be notified at least 48 hours in advance so that a grout inspection <br /> can be scheduled. <br /> • An additional GeoProbe boring will be advanced near the edge of the property south of <br /> MW-3. The attached figure has been modified as requested and shows the additional <br /> GeoProbe boring location as investigation area 94. <br /> The results of the investigation will be reported to the SJCPHS/EHD and will be used to <br /> determine the next appropriate scope of work. <br /> The depth to ground water is approximately 50 feet below surface. The collection of <br /> ground water samples from the borings will depend,in part, on the penetration of the 1-1/4 inch <br /> diameter push rod assembly to this depth by the GeoProbe. The GeoProbe contractor, Vironex, <br /> of Foster City, California, anticipates the equipment to be used should be adequate for the field <br /> work. Fugro plans to perform the field work on the Pacific Avenue Shell site in conjunction with <br /> the scope of work proposed for the Shell station at 7700 Moreland Court in Stockton. The <br /> assessment for the Moreland Court station was described in Fugro's May 31, 1995, "Site <br /> Investigation Workplan", submitted to Mr. Harlin Knoll of the SJCPHS/EHD. <br /> A member of the Fugro group of companies with offices throughout the world <br /> 93470020.FLT - <br />