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ETS RECEIVED <br /> ENVIRONMENTAL & JUS a 6 1992 <br /> A €NVIRONKNTAL HEALTH <br /> S s o c i n r � S <br /> r' RM1V5ERV1Cd'FS <br /> Mr. Steve Gilbert <br /> U-Haul Corporation <br /> Loss Prevention Department <br /> 2727 N. Central Avenue <br /> Phoenix, Arizona 85004 May 12 , 1992 <br /> RE: Quarterly monitoring, and project status report for on- <br /> going monitoring project located at 2701 North Wilson <br /> way, Stockton, California. <br /> Dear Mr. Gilbert, <br /> E Enclosed please find analytical results, groundwater <br /> elevations, and groundwater gradient calculations for the <br /> three on-site monitoring wells located at 2701 North Wilson <br /> Way location. <br /> Attached to this report you will find the following <br /> information: <br /> Appendix A: Analytical Data (Water) <br /> Appendix B : well Survey and Gradient Information <br /> for: <br /> January 16 , 1992 <br /> Field sampling of the three monitoring wells was <br /> accomplished on January 16, 1992 . The three on-site <br /> monitoring wells were inspected and their respective depth to <br /> water measurements were collected and a gradient calculated. <br /> The wells were sampled for gasoline constituents as per the <br /> requirements of the SJCEHD (Appendix A) . Prior to sampling, <br /> depth to water (DTW) measurements were taken in all three <br /> monitoring wells . Each well was evacuated using a Teflon <br /> bladder pump or a Teflon bailer. In each case, a minimum of <br /> three well volumes were removed from the wells prior to <br /> sampling. <br /> The samples were immediately refrigerated and packaged <br /> in preparation of delivery to a California Certified DOHS <br /> laboratory. Sample integrity was maintained until the <br /> analyses were preformed. Chain of Custody records were <br /> maintained at all times . <br /> P 0 BOX 2242 • MERCED, CA 95144 • (209) 384-1041 <br />