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Coca-Cola Enterprises - West <br /> Job No. 90054 <br /> No established cleanup action levels for soils presently exist in California. Conversations with <br /> Mr.Charles Hunt,San Joaquin County Health Services,indicated that TPH concentrations above <br /> 100 ppm would requite assessment and remediation. The amount of assessment and <br /> remediation required for 7PH concentrations below 100 pprn would be reviewed on a case by <br /> case basis. <br /> Groundwater is estimated to be at 40 feet based on the map on dispLsy at the San Joaquin <br /> County Department of Health Services, <br /> 8.0 RECOMMENDATIONS <br /> Based on field observations and analytical chemistry test results, U.S. Technical Environmental <br /> Consulting, Inc. recommends the following actions: <br /> �. U Since the diesel and gasoline concentrations in the 1 re <br /> excavation exceed the level at which assessment and remmediationaswould be <br /> 7 required,a contaminant as_-Sessment should be initiated to assess the vertical and <br /> lateral extent of petroleum hydrocarbons in the soil and groundwater. A work <br /> Plan should be submitted to and approved by the proper regulatory agency prior <br /> to initiating any assessment. <br /> o Since only a diesel concentration of 32 ppm was reported in the diesel UST <br /> excavation and that no gasoline or 13TEX compounds were detected, USTEC <br /> recommends that the diesel UST excavation be reviewed for <br /> possible closure. <br /> The Sacs Joaquin County Public Health Services, Environmental Health Division <br /> shoWd be provided with a copy of this preliminary report. The report can b <br /> forwarded to: <br /> San Joaquin County Public Health Services <br /> ] nvironmental Health Division <br /> Attn: Charles Hunt <br /> 1601 East Hazelton Avenue <br /> Stockton, California 95205 <br /> 6 <br />