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TABVI •
<br /> HISTORICAL.GROUNDWATER MONITORING DATA
<br /> Formei ARCO Service Station No 2168
<br /> 441 Charter Way
<br /> Stockton,California
<br /> Elevation
<br /> Top of Static Water Water Depth to Ethyl- Total Dissolved
<br /> Well ID Casing(feet Level Elevation Screen TPHG Benzene Toluene benzene Xylenes MTBE Oxygen
<br /> &Sample Date msl) (feet bgs) (feet rust) (feet bgs) gglL pg/L µg/L µglL µglL n/L (ppm) Observations
<br /> MW-1 54 2/16195 1045 37 11 2666 355 36,000 11,000 460 990 3,200 NA NA No FP,No S,O=NE
<br /> 53 5117195 3261 -22 16 38,000 12,000 790 1,100 3,400 NA NA No FP,No S,O=NE
<br /> 54 8115195 32 13 -2168 45,000 10,000 330 1,000 3,300 NA NA No FP,No S,Yes O
<br /> 54 11/29/95 3232 -2187 46,000 9,800 370 1,100 2,900 NA NA No FP,No S,Yes 0
<br /> 2127196 Well Inaccessible
<br /> 53 5115196 2788 -1743 34,000 9,400 670 1,000 2,100 <25*[l] NA No FP,No S,Yes O
<br /> 53 8122196 2850 -1805 35,000 9,100 1,000 1,000 2,000 <500*[1] NA No FP,No S,Yes O
<br /> 11/25/96 2871 -1826 37,000 7,900 460 870 1,500 <500*[l] NA No FP,No S,Yes 0
<br /> 2124197 2466 -1421 37,000 8,300 740 900 2,200 <500*[I] NA No FP,No S,Yes 0
<br /> 5/19197 2454 -1409 30,000 8,200 310 780 1,100 <600*[1] NA No FP,No S,Yes 0
<br /> 54 8121197 25 62 -15 17 28,000 8,200 380 860 1,100 <2,000**[l] NA No FP,No S,Yes 0
<br /> 54 11/17/97 2667 -1622 23,000 9,300 580 820 1,300 <1,000**[1] NA No FP,No S,Yes 0
<br /> 54 219198 2409 -1364 20,000 6,800 360 700 1,100 <1,000**[ll NA No FP,No S,Yes 0
<br /> 53 5122198 2008 -963 20,700 6,650 413 588 1,030 <100 NA No FP,No S,Yes 0
<br /> 53 8112198 2026 -981 22,000 8,690 510 785 1,220 <2 NA No FP,No S,Yes 0
<br /> 53 1119198 2140 -1095 21,300 7,420 289 628 1,020 2420 NA No FP,No S,Yes 0
<br /> 53 2117199 2060 -1015 2,650 834 483 902 138 2380 NA No FP,No S,Yes 0
<br /> 53 5125199 1996 -951 22,600 8,410 291 854 1,160 3080 NA No FP,No S,Yes 0
<br /> 53 8118199 2195 -1 1 50 19,400 7,860 228 670 958 1160 NA No FP,No S,Yes 0
<br /> 53 12!17!99[2) 21 90 -1145 15,900 5,630 121 379 579 3440 NA No FP,No S,O=NE
<br /> 53 2/22100 21 13 -1068 19,700 8,830 228 800 932 1930 NA No FP,No S,Yes 0
<br /> 54 6122100 1999 -944 19,900 6,020 139 401 486 1320 NA No FP,No S,Yes 0
<br /> 8130100 2092 -1047 18,300 8,600 254 654 650 228 NA No FP,No S,Yes 0
<br /> 11/21/00 2160 -11 l5 6,620[4] 1,570 703 908 199 128 NA No FP,No S,Yes 0
<br /> 2115101 2167 -1122 11,300[7] 3,490 136 450 329 226 1 0 No FP,No S,O=NE
<br /> 5117101 2090 -1045 8,630[5] 3,190 <50 197 137 243 07 No FP,No S,Yes 0
<br /> 8116101 2227 -1182 13,000 4,400 130 440 300 <100* 19 No FP,No S,Yes 0
<br /> 1216101 2334 -1289 12,000[8] 5,100 <50 340 210 <50 1 1 No FP,No S,Yes 0
<br /> MW-1B 8130100 1026 2125 -1099 750 504 160 69 12 262 <2 NA No rP,No S,Yes 0
<br /> 11/21/00 2136 -11 l0 1,500[4] 506 165 25 5 553 <2 NA No FP,No S,Yes 0
<br /> 211901 2162 -1136 721 [7] 233 102 175 242 <2 09 No FP,No S,O=NE
<br /> 5117/01 2095 -1069 425[5] 158 395 909 7 3 <2 29 No FP,No S,Yes 0
<br /> 8116101 2234 -1208 67 066 <0 5 22 1 5 <2 20 No I P,No S,Yes 0
<br /> 1216101 23 37 -13 11 77(81 30 063 22 1 3 <0 50 1 l No FP,No S,Yes 0
<br /> Arco_2166_QuarEer1y_Da[a As
<br /> I of8 Delta
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