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<br /> Groundwater Monitoring a and Analytical Results
<br /> Former Unocal Service Station#0187
<br /> 437 East Miner Avenue
<br /> Stockton,California
<br /> Product
<br /> WELL ID/ DATE DTW S1 GWE Thickness TPH-G 13 T I& x MTOC
<br /> TOC-(/?j (11) (ft,bgs) (ms!) 00) (ppb) (Ppb) (ppb) (Ppb) (P b) (ppb)
<br /> NP-1-22 08/13-15101 25 04 -- -1442 000 9,10010 200 45 300 920 <100/<104
<br /> (cont) 11126-28101 2626 -1564 000 7,50010 190 63 220 740 <250/2 04
<br /> 02125-27/02 2543 -1481 000 12,00011 260 63 410 1,200 <200/2 I4
<br /> 05107-09/02 2558 -14 96 000 9,00010 260 67 350 960 <250/<2 04
<br /> NP-1-65 02/05/99 2537 -- -- 000 73,000 7,000 19,000 2,400 14,000
<br /> 1014 05/07/99 2419 -1405 000 86,000 6,400 15,000 2,500 14,000 --
<br /> 08/20/99 2480 -1466 000 65,00010 3,800 11,000 2,000 10,000 --
<br /> 11/23-24/99 2564 -1550 000 50,400i0 2,570 8,240 1,440 7,070 <1,000/<1004
<br /> 02/22-23/00 2490 -14 76 000 48,00010 3,100 10,000 1,700 8,100 <1,000/<I04
<br /> 05/30-31/00 2357 -1343 000 36,40010 1,510 5,650 1,100 5,410 511/<40 04
<br /> 08/31.-09/01/00 2447 -1433 000 29,60010 1,460 5,020 848 4,230 <2,000/<40 04
<br /> 1092 11/20-22/00 22 24 92 -1400 000 38,40010 1,660 6,510 1,200 5,710 <1,000/<66 74
<br /> 12/07/00 2489 -1397 000 34,200" 1,710 5,900 980 4,730 --
<br /> 02/26-27101 2435 -1343 000 <50 0 <0 500 0 609 <0 500 0 544 <2 50/<2 04
<br /> 05/14-16/01 2443 -1351 000 93910 185 118 126 160 <25 0/<l 004
<br /> 08/13-15/01 2557 -1465 000 5,90011 160 980 180 870 <100/<2 04
<br /> 11126-28/01 2639 -1547 000 19,00010 320 2,400 450 2,600 <1,0001<504
<br /> 02125-27/02 2559 -1467 000 32,00011 440 3,800 900 3,900 <500/<5 04
<br /> 05/07-09/02 25 53 -1461 000 10,00010 82 700 230 940 <250/<5 04
<br /> NP-1-111 02/05/99 2555 -- -- 000 1,8008 19 18 <5 0 210
<br /> 1001 05/07/99 2436 -1435 000 530 15 <5 0 <5 0 13 --
<br /> 08/20/99 2524 -1523 000 <500 <5 0 <5 0 <5 0 <5 0 --
<br /> 11/23-24/99 2591 -1590 000 47410 16 7 0 512 0 745 0 559 <5 00/<2 004
<br /> 02/22-23/00 2522 -1521 000 200f3 8 9 052 052 <0 50 3 4/<2 04
<br /> 05/30-31/00 23 79 -13 78 000 2727 112 <0 500 <0 500 <0 500 <5 00/<2 004
<br /> 08131-09/01/00 2496 -1495 000 265'0 165 160 0 904 169 <5 001<2 004
<br /> 0 00 210" 11 8 2 55 0 612 1 83 <5 00/<2 004
<br /> 1015 1 i/20-22/0Q23 2526 -1451
<br /> 0187 xis/#280045 19 As of 05/09/02
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