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Page 3 of 3 <br /> C) <br /> To: Mike Infurna [EH] <br /> Subject: Vogue Pressure Grout Decision Criteria <br /> Mike-The San Joaquin County well standards are pretty broad for the conditions requiring <br /> overboring and I am trying to decide which wells are candidates for pressure grouting. <br /> #1- Do we go by peak historical concentrations or current degraded concentrations? <br /> #2- Do we go by non-detect for all tested constit jents or simply being above drinking water <br /> MCL's? <br /> #3 What if a clean well is down gradient/below i well with a history of contamination? <br /> #4- Do we count chloroform? <br /> i <br /> #a- Who has the doughnut core cutter? <br /> Thanks <br /> -Mike Vlach <br /> 6/9/2011 <br />