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Water Qualityftte Assessment:'tround Water <br /> Perform the following for each constituent of concern. <br /> ,191 11/4/92 <br /> 0 <br /> Site <br /> Ground Water <br /> Concentration �>:? <br /> (dissolved) Is site <br /> Begin here. concentration STOP. <br /> < background No water quality impact <br /> r'b:= concentration ? yes has yet occurred. <br /> INIT#A�.<SIT�A,�; <br /> R� no <br /> ® <br /> Background Ground water O <br /> Ground Water degradation has llllllll //// <br /> Concentration occurred. <br /> (dissolved) /,�� <br /> Choose <br /> the larger of <br /> Oand(3). <br /> Numerical s <br /> Limit to <br /> Implement <br /> Water Quality %g <br /> Standards <br /> 4 <br /> Numerical <br /> No bene <br /> Limit to Protect ficial use <br /> Ground Water Is CD<®1 impairment has <br /> Beneficial yes yet occurred. <br /> Uses <br /> no <br /> Ground water pollution <br /> has occurred(beneficial <br /> use impairment). <br /> Treat ground water <br /> to below beneficial use <br /> numerical limit and to Treat ground water to <br /> lowest level achievable lowest level achievable <br /> or to background.` or to background.' <br /> State Water Board Resolution Nos.68-16 and 92-49 and 22 CCR§2550.4, require cleanup to background unless infeasible to do so. <br /> In addition,cleanup level must present no risk to human health or to the environment(per conventional risk assessment procedures). <br />