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c;7;;, ec;;;7� , ta& I . <br /> Since 1898 <br /> Geotechnical and Environmental Engineering•Construction Inspection•Materials Testing•Analytical Chemistry <br /> October 7, 1991 TL 391-0086-03 <br /> Letitia Resch <br /> Environmental Health Division <br /> San Joaquin County Public Health Services <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> RE: PG&E Service Center <br /> 4040 West Lane <br /> Stockton, California <br /> Dear Ms. Resch: <br /> The purpose of this letter is to provide documentation <br /> regarding method detection limits (MDLs) associated with chemical <br /> analyses for petroleum hydocarbon constituents. The Twining <br /> Laboratories, Inc. (Twining) is accredited by the State of <br /> California Department of Health Services for analysis of Drinking <br /> Water, Wastewater and Hazardous Waste under Certificate No. 1371 . <br /> Twining ' s laboratory routinely conducts analyses that meets <br /> detection limits for commonly analyzed fuel products as specified <br /> in Table 3-5, page A-20 of the State of California Leaking <br /> Underground Fuel Tank Field Manual (LUFT) . <br /> If you have any questions regarding this letter please contact <br /> me at Twining' s Fresno office. <br /> Sincerely, <br /> THE T'C►]'INING LABORATORIES, INC. <br /> f <br /> Arthur H. Morrill <br /> Assistant Manager RECEUVED <br /> Environmental Engineering Division OCT 0 9 1991 <br /> AHM:j lb ENVIRONMENTAL HEALTH <br /> cc: Mr. Michael Savage, PG&E, Fresno PERMIT/SERVICES <br /> ❑ 2527 Fresno Street•f.©. Box 1472 ❑ 9401 West Goshen Avenue <br /> Fresno,California 93716 Visalia,California 93291 <br /> (209)268-7021 • Fax (209)268-7126 (209)651-2190• Fax (209)651-2654 <br /> 11 4230 Kiernan Avenue,Suite 105 ❑ 3701 Pegasus Drive,Suite 124 <br /> Modesto, California 95356 Bakersfield,California 93308 <br /> (209)545-1050• Fax (209)545-1147 (805)393-5088•Fax(805)393-4643 <br />