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TABO
<br /> HISTORICAL GROUNDWATER MONITORING DATA u
<br /> Former ARCO Service Station No 2168
<br /> 441 Charter Way
<br /> Stockton,California
<br /> Elevation
<br /> I op 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 insl) (feet bgs) (feet nisl) (feet bgs) µglL pg1L n/L µg/l, pgIL µg1L (ppm) Observations
<br /> MW-5 39 2/16/95 928 3578 -2650 370 180,000 8,500 15,000 2,200 12,000 NA NA No FP,No S,O=NE
<br /> 55 5117/95 31 23 -2195 22,000 3,400 2,100 390 2,400 NA NA No FP,No S,O=NE
<br /> 55 8115195 3083 -2155 32,000 4,200 3,500 410 2,500 NA NA No FP,No S,Yes 0
<br /> 55 11/29195 3100 -2172 52,000 8,300 8,100 810 4,100 NA NA No FP,No S,Yes 0
<br /> 2127196 28 19 -1891 20,000 3,200 1,900 440 1,800 NA NA No FP,No S,Yes 0
<br /> 55 5115196 2666 1738 43,000 6,500 5,000 790 3,400 <500*[I] NA No FP,No S,Yes 0
<br /> 8/22196 27 14 -1786 58,000 8,700 8,200 880 4,500 <500*[]] NA No FP,No S,Yes 0
<br /> 11/25/96 2733 -1805 53,000 7,000 6,100 800 4,000 <600**[1] NA No FP,No S,Yes 0
<br /> 2/24/97 2330 -1402 40,000 4,400 4,700 590 3,100 <700**[1] NA No FP,No S,Yes 0
<br /> 5119197 2321 -1393 43,000 5,500 4,300 660 3,800 <300*[I] NA No FP,No S,Yes 0
<br /> 54 8121/97 2429 -1501 32,000 5,200 3,900 560 3,100 X1,000111** NA No FP,No S,Yes 0
<br /> 55 11/17/97 25 33 -1605 10,000 1,700 1,300 210 1,100 <500**[I] NA No FP,No S,Yes 0
<br /> 55 2/9198 2262 -1334 4,700 740 520 110 520 <25**[1] NA No FP,No S,Yes 0
<br /> 54 5121198 1876 -948 1,380 167 148 264 125 <100 NA No FP,No S,Yes 0
<br /> 54 8112/98 1996 -1068 2,450 472 250 642 284 <20 NA No FP,No S,Yes O
<br /> 54 1119198 2009 -1081 13,800 2,490 1,890 337 1,640 <2 NA No FP,No S,Yes 0
<br /> 54 2117199 1926 -998 3,130 438 285 864 386 <2 NA No FP,No S,Yes 0
<br /> 54 5/25199 1965 -937 11,800 2,060 1,060 <100 1,380 <2 NA No FP,No S,Yes 0
<br /> 54 8118/99 1980 -1052 34,400 23,800 1,130 342 1,500 <2 NA No FP,No S,Yes 0
<br /> 54 12117199[2] 2063 -1135 <50 3 36 0 616 0 565 204 <2 NA No FP,No S,O=NE
<br /> 54 02/22/0013] 1942 -1014 3,280 942 169 134 415 <2 NA No FP,No S,Yes 0
<br /> 55 6122100 1858 -930 1,170 170 39 31 106 <2 NA No FP,No S,Yes 0
<br /> 8130100 1962 -1034 32,800 3,460 2,970 664 4,010 <2 NA No FP,No S,Yes 0
<br /> 11121100 2037 -1109 1,920[4] 391 36 1 744 233 <2 NA No FP,No S,Yes O
<br /> 2/15101 2042 -11 14 357[6] 269 5 19 487 175 <2 09 No FP,No S,O=NE
<br /> 5117101 1965 -1037 1,300[5] 239 186 383 878 <2 1 1 No FP,No S,Yes 0
<br /> 8/16/01 21 00 -1172 3,400 540 42 43 230 <2 26 No FP,No S,Yes 0
<br /> 12/6101 2195 -1267 1,400 230 20 44 99 <5 0* 1 2 No FP,No S,Yes 0
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<br /> Arco_2168_Quarterly Data x15 Delta
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