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• <br /> Table 2 <br /> April 1994 Groundwater Elevations <br /> Well # Casing Elevation GW Elevation <br /> MW-4 +5 87 ft -23 26 £t <br /> MW-5 +6 08 ft -23 94 ft <br /> MW-6 +5 87 ft -24 33 ft <br /> A teflon bailer was decontaminated prior to purging each well by washing the <br /> bailer in a Liquinox solution, rinsing with clean water followed by a deionized <br /> water rinse Each monitoring well was developed by removing a minimum of <br /> three well volumes of casing water and until consecutive conductivity, pH, and <br /> temperature measurements varied by less than 10% Samples were collected <br /> with a clean disposable bailer Field notes which include depth to water <br /> measurements, temperature, conductivity and pH information are included <br /> with this letter <br /> Site Status <br /> Previous sampling has shown that benzene and TPH-gasoline are not present in <br /> • groundwater on this property With the two recent sampling events, once-a-year <br /> sampling for TPH-diesel and measurement of groundwater elevation should be <br /> sufficient to monitor any change in groundwater status Because detections of <br /> diesel fuel have routinely been below 1000 ug/l, Safeway believes that no <br /> remedial action is warranted at this site If you have any questions regarding this <br /> matter, please do not hesitate to call me <br /> Sincerely, <br /> ERM-WEST, INC <br /> William A Spong <br /> Project Manager <br /> WAS/1218 03 <br /> Attachments Noted <br /> cc Melita Elmore, Safeway <br /> Mike Frost, Safeway <br /> Elizabeth Thayer, CVRWQCB <br />