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1 � i <br /> WALLACE • KUHLv1 TT <br /> &ASSOCIATES INC November 7, 1994 N 0 V - 91994 <br /> ENVIRONMENTAL HEALTH <br /> Mr William Locklin PERMIT/SERVICES <br /> U S RENTALS <br /> P O Box 2268 <br /> Dublin, California 94568 <br /> QUARTERLY STATUS REPORT <br /> 1444 MARIPOSA ROAD <br /> Stockton, California 95205 <br /> WKA No 2307 04 <br /> Dear Mr Locklin, <br /> As required by the San Joaquin County Public Health Services, we are <br /> submitting this quarterly status report for the subject property, located a 1444 <br /> �N <br /> Mariposa Road in Stockton, California (Plate 1) <br /> Recent ground water elevation measurements were obtained from the three on- <br /> site monitoring wells on October 21, 1994, historic ground water elevation <br /> 'fT Geotechnical Engineering <br /> data is provided in Table 1 Based on current ground water elevation <br /> Engineering Geology measurements, the ground water flow beneath the subject property is in a <br /> northeasterly direction with a hydraulic gradient of 0 0017 feet/foot (Plate 2) <br /> Environmental Consulting <br /> 1 � <br /> Remediation Services Ground water samples were also obtained from the three on-site monitoring <br /> wells on October 21, 1994 Prior to sampling, the water level in each well <br /> Construction Inspection <br /> E, <br /> was measured and checked for visual signs of free product using a clear <br /> Materials Testing bailer Approximately three to five well volumes of water were purged from <br /> each well using a two-Inch diameter submersible pump until temperature, pH, <br /> and conductivity readings stabilized and/or the water cleared of sediment The <br /> water samples were then collected using a new polyethylene disposable bailer <br /> 34501ndustnal Blvd <br /> Water from the disposable bailer was decanted into appropriate sample <br /> West Sacramento <br /> containers provided by the laboratory CA 95691 <br /> Fax 916 372 2565 <br /> ! <br /> 916372 1434 <br /> Reryckd paper <br />