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WALLACE • KUHL <br /> &ASSOCIATES INC. <br /> June 18, 1996 <br /> Mr Gary Weinberger <br /> JVM Associates L� <br /> 5601 W Mohave JUN 2 0 1996 <br /> Phoenix, Arizona 85031 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> QUARTERLY STATUS REPORT <br /> 781 SWIFT WAY <br /> Stockton, California 95206 <br /> WKA No 1735 02 <br /> Dear Mr Weinberger, <br /> I As requested by the San Joaquin County Public Health Services, we are submitting <br /> this quarterly status report for the subject property, located at 781 Swift Way in <br /> r <br /> Stockton, California (Plate 1) <br /> Ground water elevation measurements of the six on-site monitoring wells were taken <br /> r'r Geotechnical Engineering on April 18, 1996 The groundwater flow direction was calculated to be southeasterly <br /> with a gradient of 0 005 feet per foot ✓ <br /> * Engcneering Geology <br /> Environmental Consulting After obtaining the depth to water measurements from each well, it was observed that <br /> Remediation Services groundwater had risen above the screened interval in all six wells From previous <br /> ' data collected, we suspected that this might occur, and had contacted San Joaquin <br /> } Construction Inspection County prior to the sampling event During this conversation, it was decided that <br /> i <br /> pumping the groundwater surface down below the screened interval prior to sampling <br /> I Materials Testing p p g <br /> A should be attempted This was successfully completed on monitoring wells MW 1, <br /> MW4, and MW6 As a result, groundwater samples were obtained from only three <br /> of the six on-site monitoring wells on April 18 1996 <br /> 3050 industrial Blvd <br /> West Sacramento Prior to sampling, the water level in each well was measured and checked for visual <br /> CA 95691 signs of free product using a clear bailer Approximately three well volumes of <br /> Fax 916 372 2565 water were purged from each well using a two-inch diameter submersible pump until <br /> 916 372 1434 <br /> Recycled paper <br />