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Ila TABLE 4 Cumulative Potentiometric Elevations Penny Newman Grain Elevator MW-1 MW-2 MW-3 MW-0 MW-5 MW-6 MW-7 Screened interval(ft bgs) 8-28 8-28 8-28 5-25 5-25 5-25 30-35 To Of Casin ft above MSI. 1029 887 913 922 476 493 949 August 1998 089 -105 -079 n s n s ns ns November 1998 -230 -228 -203 n s n s n s n s February 1999 088 090 113 n s n s n s ns n May 1999 -048 -048 -0 22 n s n s n s n s o August 1999 -273 -272 -247 ns ns ns ns � - ns 3 M November 1999 -3 55 -3 57 -329 ns n s ns UJFebruary 2000 -122 -122 -097 ns ns n s ns June 2000 -0 80 -082 -0 55 -077 -088 ns ns September 2000 NA -2 85` -262 -284 -294 -2 96 ns December 2000 -225 -2 26` -1 98 -222 -217 -206 ns March 2001 -013 -0 12- 011 -010 -011 -017 ns June 2001 -230 -2 33" -206 -229 -245 -262 ns September 2001 -375 -3 72' -35 -371 -385 -402 ns December 2001 -236 -2 31 " -211 -232 -229 -238 ns April 2002 -09 -085 -066 -088 -094 -109 n s June 2002 -231 -2 27" -207 -229 -229 -25 ns June 2004 -233 -2 63" -247 -2 28 -246 -252 -2 25 Notes Wells MW-1 through MW-7 were surveyed on April 21,2004 the benchmark for this survey was a City of Stockton benchmark being a brass disk in monument well stamped'7S-4"located at the intersection of Harbor Street and Fresno Avenue The latitude longitude and coordinates are for top of casing and are based on the California State Coordinate System,Zone III(NAD83) Historic potenbometnc elevations were corrected using the April 2004 survey data .Potentiometnc elevations calculated for MW-2 were adjusted to account for free product for the September 2000 through the December 2001 monitoring events and again during the.lune 2002 monitoring event (ATC,2002) A thin layer of Free Product was detected in MW-2 during initial water level measurement the thickness was not measured NA = Not Accessible n s = not sampled