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PUBLIC ItALTH SERVICES FILL <br /> 4jilly <br /> :. <br /> SAN JOAQUIN COUNTY ,,, <br /> ENVIRONMENTAL HEALTH DIVISION .. <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> �lFO� <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> FEGGY MARSHALL FEB 0 9 2001 <br /> MANTECA UNIFIED SCHOOL DISTRICT <br /> 2901 LOUISE AVE <br /> MANTECA CA 95336 <br /> Re: MANTECA UNIFIED SCHOOL DISTRICT Site Code: 506563 <br /> 2901 LOUSE AVE <br /> MANTECA, CA 95336 <br /> A soil boring was advanced at the former diesel underground tank excavation of above <br /> referenced site in November 1998. Four soil samples at various depths and one grab water <br /> samples were collected. Analytical results of the soil samples were 168 milligrams/kilogram <br /> (mg/kg) of Total Petroleum Hydrocarbons as diesel ('TPH d) at 8 feet below surface grade <br /> (bsg), and non-detect at 18 feet bsg. Analytical results of the grab water sample were 389 _ <br /> micrograms/liter(gg/1). <br /> The extent and mass of the contamination in the groundwater has not been defined. A <br /> known domestic drinking water well is located to the south of the former underground <br /> storage tank. Submit a work plan that will define the extent of the contamination to San <br /> Joaquin County Public Health Services,Environmental Health Division (PHS/EHD) by <br /> April 20,2001. <br /> A 2000 feet survey for municipal,domestic, agriculture, industry and other wells is required <br /> before a site can be considered for closure. The survey must include a local map showing <br /> locations of the wells with appropriate labels and any known construction details of the <br /> wells. The well survey does not have to be a separate document and can be included in an <br /> investigation report or quarterly monitoring report. <br /> A copy of the Underground Storage Tank Cleanup Fund (Fund) application has been <br /> included. If you have any questions,please feel free to contact Jeffrey Wong at (209) 468- <br /> 0335. <br /> Donna Heran,RENS,Director <br /> Environmental Health Division <br /> Ci YU c <br /> Jeffrey Wong, Senior REFS Margaret Lagorio,REHS <br /> LOP Site Mitigation Unit IV Supervisor <br /> c: RWQCB, Central Valley Region- Marty Hartzell <br /> Cc: M.J.Kloberdanz &Associates - Michael Kloberdanz <br /> A Division of San Joaquin County Health Care Services <br />