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-MAN AM <br /> . Kim ' <br /> KHI-P86-032A <br /> August 11, 1986 <br /> Mti7-1 was drilled and completed to a total depth of 25. O feet. <br /> Free groundwater was encountered at a depth of 16. 0 feet and rose <br /> to 14.5 feet following well completion. P7o evidence of petroleum <br /> product odor was found. <br /> The well was installed with locking caps and the keys. Tle <br /> well was developed on June 13, 1986 and the water samples were <br /> taken on Tune 17, 1986, The well was checked for depth to water <br /> table, presence of odor and .floatin <br /> product. <br /> product as well as odor were noted in the well duringeourr free <br /> investigation. Prior to sampling, the well was purged at least <br /> four well-volumes from a surface bailer. <br /> collectEd using a Teflon bailer, decanted intoSamples VDAbottles were <br /> stored on ice until delivered to the laboratory. <br /> The results of the analysis and monitoring of the well are in <br /> Table 1. <br /> HYDROGEoLOGY <br /> GroLindwater is present at the site at a depth of. 11.0 feet <br /> below the surface. The subsurface formations below the site <br /> consist of silty clay with silty sand at depths of Z& to 19.5 <br /> feet. According e the Department of Water Resources, most of the <br /> groundwater in the Joaquin County is usable. <br /> CONCLUSION AND DISCUSSION <br /> The analytical results show concentrations of dissolved <br /> hydrocarbons to be below the detection limit. Since no impact on <br /> the groundwater was noted, we recommend no further monitoring at <br /> this time unless the Regulatory Agencies re <br /> - --- - - - <br /> ques zt,- - -- -, _-- ---This lather report, consisting o` professional Opinions and <br /> recommendations, has been made in accO: dance with generally <br /> accepted professional principles and practices existing for such <br /> work. Thisimplied. dgment is in lieu of all warranties either <br /> express or implied. It should be noted that environmental <br /> changes, . either naturally-occurring or artificially-induced, may <br />