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TAB* •
<br /> HISTORICAL GROUNDWATER MONITORING DATA
<br /> Former 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 ms]) (feet bgs) pg/L µg/L pglL pg/L pg/L pg/L (ppm) Observations
<br /> MW-1 54 2116/95 1045 37 11 -2666 355 36,000 11,000 460 990 3,200 NA NA No FP,No S,O=NE
<br /> 53 5117195 1045 3261 -22 16 38,000 12,000 790 1,100 3,400 NA NA No FP,No S,O-NE
<br /> 54 8/15/95 1045 32 13 -21 68 45,000 10,000 330 1,000 3,300 NA NA No FP,No S,Yes 0
<br /> 54 11/29/95 1045 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 1045 2788 -1743 34,000 9,400 670 1,000 2,100 <25*[1] NA No FP,No S,Yes 0
<br /> 53 8122/96 1045 2850 -18 05 35,000 9,100 1,000 1,000 2,000 <500*[l] NA No FP,No S,Yes 0
<br /> 11/25/96 1045 2871 -1826 37,000 7,900 460 870 1,500 <500*[I] NA No FP,No S,Yes 0
<br /> 2124197 1045 2466 -1421 37,000 8,300 740 900 2,200 <500*[I] NA No ZIP,No S,Yes O
<br /> 5/19/97 1045 2454 -14 09 30,000 8,200 310 780 1,100 <600*[1] NA No FP,No S,Yes 0
<br /> 54 8/21/97 1045 2562 -15 17 28,000 8,200 380 860 1,100 <2,000**[1] NA No FP,No S,Yes 0
<br /> 54 11/17/97 1045 2667 -16 22 23,000 9,300 580 820 1,300 <1,000**[1] NA No FP,No S,Yes 0
<br /> 54 2/9/98 1045 2409 -13 64 20,000 6,800 360 700 1,100 <1,000**[11 NA No FP,No S,Yes 0
<br /> 53 5122198 1045 2008 -963 20,700 6,650 413 588 1,030 <100 NA No FP,No S,Yes 0
<br /> 53 8/12/98 1045 2026 -981 22,000 8,690 510 785 1,220 <2 NA No FP,No S,Yes 0
<br /> 53 1119/98 1045 2140 -1095 21,300 7,420 289 628 1,020 2420 NA No FP,No S,Yes 0
<br /> 53 2117199 1045 2060 -10 15 2,650 834 483 902 138 23 80 NA No FP,No S,Yes 0
<br /> 53 5/25/99 1045 1996 -951 22,600 8,410 291 854 1,160 3080 NA No FP,No S,Yes 0
<br /> 53 8118199 1045 21 9S -11 50 19,400 7,860 228 670 958 11 60 NA No FP,No S,Yes 0
<br /> 53 12117199[2] 1045 21 90 -1145 15,900 5,630 121 379 579 3440 NA No FP,No S,O=NE
<br /> 53 2122/00 1045 21 13 -1068 19,700 8,830 228 800 932 1930 NA No FP,No S,Yes 0
<br /> 54 6/22/00 1045 1989 -944 19,900 6,020 139 401 486 1320 NA No FP,No S,Yes 0
<br /> 8/30/00 1045 2092 -1047 18,300 8,600 254 654 650 228 NA No FP,No S,Yes 0
<br /> 11/21/00 1045 21 60 -11 15 6,620[4] 1,570 703 908 199 128 NA No FP,No S,Yes 0
<br /> 2115101 10 45 2167 -11 22 11,300[7] 3,490 136 450 329 226 l 0 No FP,No S,O-NE
<br /> 5/17101 1045 2090 -1045 8,630[5] 3,190 <50 197 137 243 07 No FP,No S,Yes 0
<br /> 8/16101 1045 2227 -1182 13,000 4,400 130 440 300 <100* 1 9 No FP,No S,Yes 0
<br /> MW-113 8130100 1026 2125 -1099 75 0 504 160 69 12 262 <2 NA No FP,No S,Yes 0
<br /> 11/21/00 1026 2136 -11 10 1,500[4] 506 165 25 5 55 3 <2 NA No FP,No S,Yes 0
<br /> 2115101 1026 2162 -1136 721 [7] 233 102 175 242 <2 08 No FP,No S,O-NE
<br /> 5/17/01 1026 2095 -1069 425[5] 158 3 95 909 73 <2 29 No FP,No S,Yes 0
<br /> 8116101 1026 2234 -1208 67 066 <0 5 22 1 5 <2 20 No FP,No S, Yes 0
<br /> Arca2168 QUAR I LRI Y DATA XLS
<br /> I of Delta
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