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.. .... . .. . <br /> : .Virgil Chavez Land Surveying <br /> #12 Georgia Street, Suttle 225 <br /> VaUejo, California. 94590-5907 <br /> (707)553-2476 9 Fax(707) 553-8698 July 9, 2002 <br /> Project No.: 2119-03 <br /> Doug Lee <br /> Gettler Ryan Inc. <br /> 6747 Sierra Court, Suite J <br /> Dublin, CA 94568-2611 <br /> Subject: Monitoring Well Survey <br /> Tosco Service Station No. 11195 <br /> 16500 South Interstate 5 <br /> I.Adwop, CA <br /> Dear Doug: <br /> This is to confirm that we have proceeded at your request to survey the new ground water <br /> monitoring wells located at the above referenced location The survey was completed on <br /> July 5, 2002. The benchmark for this survey was a brass disk, stamped"City of Lathrop <br /> Bench Mark No. 5,"at the southeast curb return of Louise Avenue and Harlan Road. The <br /> 'r latitude, longitude and coordinates are for top of casings and are based on the California <br /> State Coordinate System,Zone III (NAD83). <br /> The table on page 2 has elevations of the existing wells, resurveyed at your request. <br /> Benchmark Elevation= 14.77' (N GVD 29). <br /> LAWWO fade Longitude Northin Eastin EIev. Desc. <br /> 12.33 GRD MW-13 <br /> 37.8107798 -121,2950989 2118660.88 6331979.50 15.23 TOC MW-13 <br /> 12.20 GRD MW-14 <br /> 37.8107312 -121.2947386 2118642.29 6332083.44 14 .29 TOC MN-14 <br /> 12.29 GRD MW-15 <br /> 37. 8105012 -121.2952025 2118559.68 6331948.73 14 ,94 TOC MW-15 <br /> 13.34 GRD MW-16 <br /> 37.8104829 -121.2948887 2118552.25 6332039.30 12.92 TOC MW-16 <br /> 14,25 RIM MW-17 <br /> 37.8106340 -121.2942674 2118605.74 6332219.25 13,76 TOC MW-17 <br /> I <br /> OF <br />