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Protect No 014-95262 <br /> Page No 16 <br />} 5 Physical observation and soil and groundwater chemistry suggest the wastewater <br /> treatment pond has leaked, increasing the electrical conductivity and chloride <br /> concentration of surrounding groundwater The full extent of affected <br /> groundwater is not known <br /> 6 Diesel in groundwater may extend over 200 feet west and over 300 feet northeast <br /> from the former Safeway USTs It is unclear if the distribution noted results from <br /> reversals in groundwater flow direction or that the source for diesel in <br /> groundwater west of the former USTs is from an off-site source or former military <br /> use <br /> 10.0 LIMITATIONS <br /> The findings of this report were based upon the results of our field and laboratory investigation, <br /> coupled with the interpretation of subsurface conditions associated with our soil borings and CPT <br /> soundings Also incorporated was the uiterpretation of previous investigations in the vicuuty Therefore, <br /> the data are accurate only to the degree implied by review of the data and by professional interpretation <br /> The CPT soundmgs/borings were located in the field by review of available maps Therefore, <br /> these locations should be considered accurate only to the degree implied by the method used to located the <br /> CPT soundings/borings <br /> Chemical testing was done by laboratories approved by the State of California Department of <br /> Health Services The results of the chemical tests are accurate only to the degree of care used to ensure <br /> the testing accuracy and the representative nature of the soil samples obtained <br /> The findings presented in this report were based on field observations, review of chemical analysis, <br /> review of available data, and discussions with local regulatory and advisory agencies Therefore, the data <br /> obtained are clear and accurate only to the degree implied by the sources and methods used The <br /> information presented herewith was based on professional interpretation using presently accepted methods <br /> with a degree of conservatism deemed proper as of the report date <br /> i <br /> KRAZAN& ASSOCIATES,INC <br /> Offices Serving the Western United States <br /> 952a Ps2 <br />