|
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-2 53 11/17/1997 26 94 -1611 2,200 510 120 44 130 <100'*[1] NA
<br /> (cant} 53 2/9/1998 24 33 -1350 15,000 3,700 790 440 1,000 <500**(1] NA
<br /> 52 5/21/1998 2038 -955 10,200 2,220 562 238 628 <100 NA
<br /> 52 8/12/1998 20 57 -974 1,100 234 390 238 494 <2 NA
<br /> 52 11/9/1998 2167 -1084 4,420 1,050 212 116 278 <2 NA
<br /> 52 2/17/1999 2098 -1015 8,450 1,790 332 266 499 <2 NA
<br /> 52 5/25/1999 2028 -945 1,720 469 47 9 57 8 764 <2 NA
<br /> 52 8/18/1999 21 40 -10 57 8,870 2,610 176 316 411 <2 NA
<br /> 52 12/17199[2] 2224 -11 41 1,090 309 796 128 5 0 <2 NA
<br /> 52 2/22/2000 2137 -1054 4,510 1,500 138 151 207 <2 NA
<br /> 53 6/22/2000 2019 -936 735 141 17 12 22 <2 NA
<br /> 8/30/2000 2239 -11 56 8,200 2,310 204 259 322 <2 NA
<br /> 11/21/2000 21 96 -11 13 1,140[4] 210 174 23 3 515 <2 NA
<br /> 2/15/2001 21 89 -11 06 1,240(6] 161 <50 522 11 1 <2 1 0
<br /> 5/17/2001 21 27 -1044 389[5] 289 <2 5 4 56 <2 5 <2 1 5
<br /> 8/16/2001 2257 -11 74 470 7 3 <0 5 3 4 4 0 <2 2 9
<br /> 12/6/2001 2355 -1272 <2,000 26 <20 <20 <20 <5 0* 1 3
<br /> 2/14/2002 2202 -11 19 1,800 300 31 60 54 <0 50 1 6
<br /> 6/13/2002 2236 -11 53 2,000 280 140 440 46 0 <2 5[10] 0 9
<br /> 8/22/2002 2342 -1259 5,200 1,100 120 160 280 <0 50 1 3
<br /> 11/13/2002 2442 -1359 620 110 <5 0 <5 0 <5 0 <5 0 --
<br /> 2/12/2003 24 69 -1386 400 30 1 1 3 4 3 5 <0 5 1 1
<br /> 5/29/2003 -- -- Not Sampled
<br /> MW-3 53 2/16/1995 958 36 24 -26 66 360 37,000 14,000 340 2,100 470 NA NA
<br /> 53 5/17/1995 3149 -2191 39,000 13,000 1,200 2,100 1,500 NA NA
<br /> 53 8/15/1995 31 06 -21 48 31,000 11,000 220 1,800 910 NA NA
<br /> 53 11/29/1995 3125 -2167 41,000 10,000 350 1,900 860 NA NA
<br /> 2J27/1996 2851 -1893 36,000 10,000 510 1,800 990 NA NA
<br /> 53 5/15/1996 2682 -1724 40,000 12,000 690 2,000 1,300 <500*'[i] NA
<br /> 6/22/1996 2735 -17 77 53,000 14,000 2,000 2,400 2,900 <500*(1] NA
<br /> 11/25/1996 2766 -1808 45,000 11,000 1,100 2,100 1,800 <500*[i] NA
<br /> 2/24/1997 23 55 -13 97 38,000 9,200 460 1,800 1,200 <500'(i] NA
<br /> 5/19/1997 23 42 -13 84 38,000 9,800 620 1,900 1,100 <600-111 NA
<br /> 53 6/21/1997 24 49 -1491 36,000 9,500 910 2,000 1,500 <2,000**[i] NA
<br /> 54 11117/1997 25 57 -1599 37,000 12,000 2,100 2,100 3,000 <1,000**[i] NA
<br /> K%Wproc ms ,15 SP ARC01021681Quarlerly QTR 03\2168 GWMR 2Q03
<br /> 3of10
<br />
|