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TABLE 1 <br /> Groundwater Monitoring and Analytical Data <br /> Former ARCO Service Station No 2168 <br /> 441 Charter Way <br /> Stockton, California <br /> Elevation <br /> Top of Static Groundwater Depth to Ethyl- Total Dissolved <br /> Well ID Casing Water Level Elevation Screen TPHG Benzene Toluene benzene Xylenes MtBE Oxygen <br /> &Sample Date (feet msl) (feet bgs) (feet msl) (feet bgs) ug/L ug/L ug/L ug/L ug/L ug/L (mg/L) <br /> MW-1 B 8/30/2000 1026 2125 -1099 750 504 160 69 12 262 <2 NA <br /> 11/21/2000 2136 -11 10 1,500[4] 506 165 255 553 <2 NA <br /> 2/15/2001 21 62 -11 36 721 [7] 233 102 175 242 <2 08 <br /> 5/17/2001 2095 -1069 425[5] 158 395 909 73 <2 29 <br /> 8/16/2001 2234 -1208 67 066 <0 5 22 1 5 <2 20 <br /> 12/6/2001 2337 -1311 77[8] 30 063 22 1 3 <0 50 1 1 <br /> 2/14/2002 21 71 -1145 <50 58 068 <0 50 075 <0 50 1 7 <br /> 6/13/2002 2206 -11 80 <50 3 6[11] <0 50 <0 50 0 60[11] <0 50 1 3 <br /> 8/22/2002 2314 -1288 <50 26 <0 50 <0 50 052 <0 50 1 1 <br /> 11/13/2002 2400 -1374 <50 70 <0 50 <0 50 <0 50 <0 50 -- <br /> 2/12/2003 - -- Not Sampled <br /> 5/29/2003 -- -- Not Sampled <br /> MW-1 C 8/30/2000 1021 2219 -11 98 1050 537 63 <2 <2 406 <2 NA <br /> 11/21/2000 21 69 -11 48 62 3[4] 569 1 21 0 999 351 <2 NA <br /> 2/15/2001 2180 -11 59 <50 988 1 42 164 259 <2 08 <br /> 5/17/2001 21 23 -11 02 <50 909 0 708 1 57 1 is <2 1 1 <br /> 8/16/2001 2266 -1245 <50 42 065 <0 5 083 <2 24 <br /> 12/6/2001 2357 -1336 <50 93 <0 50 1 4 072 <0 50 1 3 <br /> 2!1412002 2217 -11 96 <50 10 059 1 8 1 7 <0 50 1 8 <br /> 6/13/2002 2241 -1220 4 8[11] <0 50 0 9[11] 0 66[11] <0 50 <0 50 1 3 <br /> 8/22/2002 2329 -1308 <50 40 <0 50 1 1 099 <0 50 13 <br /> 11/13/2002 2438 -1417 <50 <0 50 <0 50 <0 50 <0 50 <0 50 -- <br /> 2/12/2003 -- -- Not Sampled <br /> 8/29/2003 -- -- Not Sampled <br /> MW-2 53 2/16/1995 1083 3748 -2665 330 36,000 6,300 4,600 610 2,700 NA NA <br /> 5117/1995 Well Inaccessible <br /> 53 8/15/1995 3245 -2162 20,000 3,500 2,000 280 1,300 NA NA <br /> 53 11/29/1995 3262 -21 79 30,000 3,800 2,700 380 1,800 NA NA <br /> 2/27/1996 2987 -1904 Well not sampled <br /> 53 5/15/1996 2818 -1733 16,000 2,600 1,000 210 910 <200**[i] NA <br /> 53 8/22/1996 2876 -1793 34,000 5,900 2,500 560 2,300 <300**[i] NA <br /> 11/25/1996 2895 -i812 26,000 4,000 2,000 390 1,800 <300*[1] NA <br /> 2!2411997 2495 -1412 22,000 3,100 1,300 340 1,400 <500**[1] NA <br /> 5/19/1997 2484 -1401 28,000 4,700 11900 480 2,200 <300*[1] NA <br /> 52 8/21/1997 2592 -1509 15,000 3,000 1,200 320 1,200 <500**[1] NA <br /> K 1Wprooew\J5 8P ARC01021681Quar1eri V QTR 03\2168 0Wb1R 2Q03 <br /> 2of10 <br />