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PUBLIC HEALTH SERV"ICES <br /> SAN JOAQUIN COUNTY a <br /> ENVIRONMENTAL HEALTH DIVISION ` <br /> Karen Furst, M.D., M.P.H., Health Officer .?'; <br /> 304 East Weber Avenue, Third Floor- Stockton, CA 952 <br /> 209/468-3424 FILE COPY <br /> AUG 06 1998 <br /> WILLIAM WATKINS JAMES PAIGE <br /> 654 RIALTO 7404 LIGHOUSE DRIVE <br /> VACAVILLE CA 95687 STOCKTON CA 95219 <br /> RE: PAIGES TOWING SITE CODE: 10781 <br /> 1807 DOUGLAS <br /> STOCKTON CA 95207 <br /> San Joaquin County Public Health Services, Environmental Health Division <br /> (PHS/EHD) has reviewed our file information on the above-referenced site. <br /> Between January 23 and January 26, 1996, six bore holes were advanced to a <br /> depth of 30 feet below surface grade (bsg) at the site in the vicinity of the two still <br /> existing 10,000 gallon underground storage tanks (UST). Soil and grab water <br /> samples from the bore holes were collected for laboratory analyses. The <br /> analytical results reported in the "Preliminary Investigation & Evaluation Report" <br /> (PIER) dated February 20, 1996 prepared by Advanced GeoEnvironmental, Inc., <br /> confirmed petroleum hydrocarbon contamination impact to both soil and <br /> groundwater. Analytical results of the grab water sample taken from Borehole #3 <br /> were 5,800 parts per billion (ppb) total petroleum hydrocarbons as gasoline <br /> (TPH-g), 4,000 ppb TPH as diesel (TPH-d), 160 ppb Benzene, 140 ppb <br /> Toluene, 95 ppb Ethylbenzene, and 570 ppb Xylenes. The PIER recommended <br /> the installation of three on-site and one off site monitoring wells to better assess <br /> and monitor the groundwater plume. <br /> In a letter dated March 13, 1996, PHS/EHD commented on the PIER and <br /> recommended relocating the off-site monitoring well to an on-site location, <br /> modifying the design of all the proposed wells for Ipuft o9es of groundwater <br /> monitoring and vapor extraction testing, and conducting a euvveywof wells within <br /> a 2000 feet radius of the site. You were required to submit to PHS/EHD a <br /> proposal for the additional work by April 29, 1996. PHS/EHD has not received <br /> this proposal to date. <br /> A Division of San Joaquin Counry Health Care Services <br />