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YOUNGDAHL <br /> &ASSOCIATES INC. <br /> GEOTECHNICAL, ENVIRONMENTAL & CONSTRUCTION LAB <br /> Project No. 91349.a <br /> 4 November, 1991 <br /> San Joaquin County <br /> Public Health Service <br /> Environmental Health Division <br /> Stockton, CA 95201 <br /> FAX (209) 464-0138 <br /> Attention: Ms. Joanne Watson <br /> Subject: RE-ACTIVATION of the Request to Review File for the BP Petroleum <br /> Site, 1206 E. March Lane Stockton, California <br /> Dear Ms. Watson: <br /> Thank you for your instructions regarding this request to review file information <br /> from the Environmental Health Division of San Joaquin County. YOUNGDAHL & <br /> ASSOCIATES, INC. encountered suspect petroleum-affected soil and perched <br /> groundwater during a geotechnical investigation on the contiguous parcel to the <br /> west of 1206 E. March Lane. Our client has requested us to conduct a Phase II <br /> investigation to determine the lateral and vertical extent of contamination on the <br /> site. <br /> It is our understanding that a groundwater Problem Assessment Report has been <br /> conducted on the 1206 E. March Lane site which might provide us with <br /> preliminary groundwater information including gradient and quality. If possible, we <br /> would appreciate a copy of the site plan showing elevations and locations of wells <br /> or borings; a summary sheet of detected constituents; and a summary sheet of <br /> groundwater gradient information from the report. <br /> If any other leaking tank sites are within the immediate vicinity and assumed to be <br /> upgradient from our area, please advise me of the file name and address for my <br /> review during our upcoming site-walk. <br /> Please consider this letter a request to review files in the March Lane and West <br /> Lane area of Stockton. I will plan my visit based upon the information you can <br /> provide me with on 1206 E. March Lane. <br /> 1234 GLENHAVEN COURT ■ EL DORADO HILLS,CA 95630 <br /> SACRAMENTO(916)638-8546 EL DORADO HILLS(916)933-0633 <br /> FAX(916)933-6482 <br />