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PURL HEALTH SI&VICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D M PH , Health Officer ,�• <br /> 304 East Weber Avenue, Thirr«63. 95202 <br /> 2( ;%4!d- <br /> ERNEST P GIANNECCHINI NOV 0 6 2001 <br /> ERNIE' S GENERAL STORE <br /> 4407 EAST WATERLOO ROAD <br /> STOCKTON CA 95215 <br /> RE. ERNIE'S GENERAL STORE SITE CODE 0000885 <br /> 4407 EAST WATERLOO ROAD <br /> STOCRTON CA 95215 <br /> San Joaquin County Public Health Services,Environmental Health Division(PHS/EBD) has <br /> received Prrlty m-nylrraestz iandE'uz&wt=Report(PIER) dated October 26,2001 prepared by <br /> Advanced GeoEnvironmental,Inc (AGE). Analytical results of grab water samples collected from <br /> soil boring#2 (B2) west of the former underground storage tank(UST) excavation (occupied by <br /> existing UST) were 8,300 µg/l of Total Petroleum Hydmcarbons as gasoline (IpHg), 8 5 µg/1 of <br /> Benzene, 150 µg/1 of Toluene, 120 µg/l of Ethyl Benzene, 1,300 µg/1 of Xylenes,29 µg/1 of Methyl <br /> I tert Butyl Ether(1VME),and 6 2 µg/1 of 1,2-dichloroethane MTBE was detected in the sod sample <br /> collected from B2 at 40 feet below surface grade (bsg) at a concentration of 130 Wkg,50 feet at 33 <br /> µg/kg,but was not-detect at in the soil samples 70,80,90 feet bsg Groundwater was first <br /> encountered at 70 feet bsg According to maps of Lutes of Equal Depth to Groundwater published <br /> by San Joaquin County Flood Control for Fall 1978 and 1979,the historic groundwater low in the <br /> area was between 80 to 90 feet bsg <br /> PI-IS/EBD concurs with the conclusions m the PIER that the contami nauon in the soil and <br /> groundwater has not been defined. Additional assessment is required. <br /> Submit a work plan that will define the vertical and lateral extent of the contarnmation in soil and <br /> groundwater to PHS/EI-]D by December 20,2001 PIS/EHD recommends application to the <br /> IState UST Clean Up Fund be made if you have not done so already. <br /> If you have any questions,please feel free to contact Jeffrey Wong at (209)468-0335 <br /> Donna Heran,RENS,Director <br /> Environmental Health Division <br /> I <br /> IJeffrey Wong,RENS Margaret ono,RENS <br /> LOP/Site Mitigation.Unit IV Supervisor <br /> ICRWQC:B, Central Valley Region-Marty Hartzell <br /> Cc Advanced GeoEnvimnrn tital,Inc— Brian Millman <br /> IA Division of San Joaquin county Health care Scry= <br />