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Page 1 of 3 <br /> c <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Thursday,April 03, 2014 12:26 PM <br /> To: 'Silva, Larry' <br /> Subject: RE: 620 West Charter Way, Stockton <br /> Attachments: Letter 4-3-14.pdf . <br /> Hi Larry, <br /> I'm sorry, but MW-3, MW-4 and MW-13-50 must be over-drilled. Only wells that have no contamination in the <br /> groundwater during the last sampling event, and no contamination in the soil when installed, can be pressure <br /> grouted. <br /> am appending the letter that was uploaded to GeoTracker and will be sent today concerning our agency's <br /> directive to prepare a work plan for the well destructions. <br /> Please do not hesitate to contact me if you have any questions concerning well destructions. <br /> Thanks, Larry. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartney(a sicehd.com <br /> i <br /> I <br /> From: Silva, Larry [ma iIto:lsilva@craworld.com] <br /> Sent: Thursday, April 03, 2014 11:33 AM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: 620 West Charter Way, Stockton <br /> i <br /> Good Morning Ms. McCartney, <br /> Several wells. MW-3 MW-4 and MW-13-50 <br /> ( , ) proposed for destruction at the subject site had detectable <br /> concentrations of gasoline constituents during the last sampling event,but concentrations were low. <br /> Results are listed below. These wells are not located in an areas of known or suspected contamination. <br /> With the exception of .3 mgZ <br /> k TPHg detected in the soil sample collected at MW-3, no gasoline <br /> constituents were detected in soil in these wells. <br /> Due to the very low concentrations detected in these wells,can CRA destroy the wells by pressure <br /> grouting instead of by over-drilling? <br /> MW-3 <br /> MTBE at 1.5µg/L <br /> i <br /> MW-4 r <br /> TPHg at 110µg/L I?- <br /> MTBE at 1.4µg/L / <br /> 4/3/2014 <br />