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<br /> Historical Groundwater Monitoring and Analytical Data
<br /> Ranch Market
<br /> 23569 South Santa Fe Road
<br /> Riverbank,Catifomia
<br /> Well NoJ Ethyl- EPA method 8260 B
<br /> Elevation Date Benzene Toluene beome Xytenes TPH-G MTBE TBA I DIPE ETBA TAME 1,2 DCA EDB DTW** SPT WTE
<br /> (TOC)* (µ ) OWL) ) ( ) ( ) (ed) (P ) (u R-) (,Ug&) (u R-) (u ) (µ IL-) 00 00 (h)
<br /> oil Boring Grab Water Samples
<br /> 1 01/21/98 1 36,4001 47,100 3,990 2,000 238,000 a ND ND ND ND ND -- -- - --
<br /> epth Discrete Grab Water Samples
<br /> P 1 07/18/00 <0 50 <0 50 <0 50 <050 120 b 1.2 62 <0 50 <0 50 <0 50 <0 50 <0 50 32-34 d
<br /> P-2 07/17/00 130 96 15 45 680 b 12 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 32-34 d
<br /> P 3 07/17/00 31 <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <050 <0 50 <0 50 <0 50 <0 50 32-34 d
<br /> P 4 07/18/00 IA <0 50 <0 50 <0 50 <50 b 11 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 36-37 d
<br /> B 1 07/24/00 110 530 62 340 2,200 b 5A <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 75-78 d
<br /> 62 07/25/00 5.3 0.56 16 49 140 b 5.3 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 75-78 d
<br /> B 3 08/10/00 <0 50 <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 35 37 e
<br /> roundwater Monitoring Wells
<br /> W-1 12/09/98 5,120 7,390 696 5,020 65,900 a 840 1200 <50 <50 <50 - - 2636 000 79 38
<br /> 10574 12/25/99 8,150 10,700 1,020 4,750 72,900 a 210 <20 <5 <5 <5 <5 <5 2766 0 00 7908
<br /> 04/06/00 3,300 2,100 130 3,800 24,000 b 320 49 <2 0 <2 0 <2 0 29 <20 2587 0 00 7987
<br /> 08/16/00 13,000 13,000 1,200 7,400 80,000 b 1,600 240 12 <2 0 <2 0 18 64 2799 0 00 7775
<br /> 11/16100 880 630 34 740 6,800 b 83 <20 <2 0 <2 0 <2 0 <2 0 <20 27 29 000 7845
<br /> 01/03/01 3,000 2,100 150 1,600 14,000 b 320 62 <5 0 <5 0 <5 0 <5 0 <5 0 2730 000 7844
<br /> 04/11/01 4,600 3,200 220 1,900 22,000 b 410 130 <10 <10 <10 <10 <10 2686 000 7888
<br /> 07/03/01 6,500 5,600 490 2,700 35,000 b 900 <250 <25 <25 <25 <25 <25 27 89 000 77 85
<br /> W 2 12109/96 4,730 5,470 561 3,300 45,800 a 350 <400 <100 <100 <100 25 90 000 7942
<br /> 10532 12/25/99 3,840 2,930 230 1,210 19,800 a 300 <20 <5 <5 <5 c5 <5 27 19 000 7813
<br /> 04/06/00 8,100 5,400 680 4,100 42,000 b 850 <100 <2 0 12 0 <2 0 15 <10 2542 000 7990
<br /> 08/16/00 8,500 4,700 730 2,900 37,000 b 750 33 <2 0 <2 0 <2 0 11 <2 0 2731 000 7801
<br /> 11/16/00 1,500 330 22 320 4,700 b 100 <50 <5 0 <5 0 <5 0 <5 0 <5 0 2680 000 78 52
<br /> I
<br /> 01/03/01 1,300 360 29 250 3,800 b 110 <50 <5 0 <5 0 <5 0 <5 0 <5 0 26 84 000 7849
<br /> 04/11/01 5,400 1,200 280 1,100 17,000 b 340 <200 <20 <20 <20 <20 <20 2640 000 78 92
<br /> 07/03/01 6,800 2,200 800 2,300 29,000 b 580 <250 <25 <25 <25 <25 <25 2763 0 00 7769
<br /> j W-3 12/09/98 913 1,530 165 1,360 17,800 a 43 <20 <5 0 <5 0 <5 0 - - 2646 0 00 7935
<br /> 10581 12/25/99 1,750 1,170 184 698 10,300 a <5 <20 <5 <5 <5 <5 <5 2778 000 7903
<br /> 04/06/00 1,200 1,700 480 2,800 24,000 b 20 6 8 <0 50 <0 50 <0 50 2 7 <1 0 26 03 000 7978
<br /> 08/16/00 5,800 5,700 680 2,400 30,000 b 92 41 <2 0 <2 0 <2 0 13 <2 0 28 53 000 7729
<br /> 11/16/00 780 980 430 2,700 24,000 b 11 <20 <2 0 <2 0 <2 0 <2 0 <2 0 2741 0 00 7840
<br /> 01/03/01 210 150 28 220 2,600 b 3 8 <10 <1 0 <1 0 <1 0 <1 0 <1 0 27 45 000 7836
<br /> 04/11/01 3,400 2,700 310 2,500 24,000 b 65 <100 <10 <10 <10 <10 <110 2699 000 7882
<br /> 07/03/01 3,600 3,300 430 2,000 21,000 b 100 <100 <10 <10 <10 11 <1
<br /> 0 2823 000 7758
<br /> II I
<br /> File ProjectlRiverbaaklTablesl RB 01-3Q-GW-1 Pagel of 5 7123101
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