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Q ,N <br /> PUBLIC 1=1EALTH SERVICES <br /> SAN JOAQUIN COUNTY r. <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 East Weber Avenue, Third Floor Stockton, CA 95202co") <br /> 209/468-3420 �J <br /> LOIS IRENE FREER <br /> 11146 WALNUT AVE <br /> EL MONTE CA 91731 <br /> RE : 443 SYCAMORE <br /> SITE CODE : 505514 <br /> MANTECA CA <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD) is the lead agency providing the oversight of <br /> the investigation and cleanup of releases from underground <br /> storage tanks within San Joaquin County. PHS/EHD has reviewed <br /> the preliminary soil and groundwater analytical results for <br /> samples collected under permit and inspection on October 18, 1996 <br /> and has the following comments . <br /> Two of the nine soil samples, SB-3 at 10 feet and SB-4 at 10 <br /> feet, contain detectable petroleum hydrocarbon. Soil sample <br /> results at fifteen feet in SB-3 and SB-4 were below detection <br /> limits which indicates an extremely limited amount of residual <br /> hydrocarbon in the vadose zone above groundwater. Groundwater is <br /> currently 22 feet below ground surface . <br /> Soil boring SB-4 was converted to a groundwater monitoring well <br /> and sampled on October 18 , 1996 . The first round water sample <br /> results were non-detect for petroleum hydrocarbons . PHS/EHD will <br /> send a request for site closure to the California Regional Water <br /> Quality Control Board. If no negative response is received <br /> within 30 days PHS/EHD will allow the monitoring well to be <br /> destroyed. After the monitoring well abandonment has been <br /> completed and required reports have been submitted a letter will <br /> be issued that states no further action is required at this time . <br /> If you have any further questions regarding this matter, contact <br /> Harlin Knoll at (209) 468-3442 . <br /> Donna Heran, REHS Director <br /> Environmental Health Division <br /> Harlin Knoll, Se for REHS Margar` t Lagori REHS <br /> LOP/Site Mitigation Unit IV Supervisor <br /> HK/lb <br /> cc : Cambria <br /> Environmental Closures <br /> WP/SYC443 <br /> A Division of San Joaquin County Health Care Services <br />