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If m m m m m m TABLE 1 Groundwater Monitoring and Analytical Data Ranch Market 23569 South Santa Fe Road Riverbank Califomia Welt No 1 Ethy[ EPA method 8260 B Elevation Date Benzene Toluene benzene Xylenes TPH G MTBE TBA DIPS ETBE TAME 12 DCA EDB DTW' SPT WfE {TOC) pglL) (pg1L) (pg1L) (ug/L) (NglL} (N !L} (pg1L) {Ng1L) (NgfL) (ug1L) ( g&) (g&) (ft} rq (n) Soil Boring Grab Water Samples 6 1 1 01!23/98 1 36 400 47100 3 990 2000 238 000 a ND ND ND ND ND -- Depth Discrete Grab Water Samples GP 1 07118/00 <0 50 <0 50 <0 50 <0 50 120 b 1 2 6 2 <0 50 <0 50 <0 50 <0 50 <0 50 32 34 c — — GP 2 07117100 130 96 15 45 680 b 12 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 32 34 c — — GP 3 07!17100 3 t <0 50 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 32 34 c -- GP44 07118100 14 <0 50 <0 50 <0 50 <50 b 11 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 36 37 c — — SB 1 01124100 110 530 62 340 2200 b 5 4 <5 0 <0 50 <0 50 <0 50 <0 50 <050 75 78 c — SB 2 07!25!00 5 3 056 16 4 9 140 b 5 3 <5 0 '050 <0 50 <0 50 <0 50 <0 50 75 78 cS83 06110100 <0 50 <0 50 <0 50 <0 50 <50 b <0 50 <50 <0 50 <0 50 <0 50 <0 50 <0 50 35 37 c e — CPT 1 10112101 <0 5C -050 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 3840 C — CPT 2 10!12101 — — — — — CPT 2A 10112101 <0 50 -050 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 -050 <0 50 33 35 c — CPT 3 10112101 <0 50 065 <0 50 <0 50 <50 b <0 50 <5 0 <0 50 <0 50 <0 50 <0 50 <0 50 33-35 c — Groundwater Monitoring Wells MW 1 12/09198 5120 7 390 696 5 020 65 900 a 840 <200 <50 <50 <50 — 2636 0 00 7938 10574 12/25/99 8,150 10,700 1,D20 4,750 72,900 a 210 <20 <5 <5 <5 <5i <5 27 66 000 7806 04/06/00 3,300 2 100 130 3,800 24,000 b 320 49 Q 0 <2 0 <2 0 2 9 <2 0 2587 000 7987 08/18100 13 000 13 000 1,200 7,400 80 000 b 1 600 240 3 2 <2 0 <2 0 18 6 4 2799 000 7775 11/16100 ago 630 34 740 6 800 b 83 <20 <2 0 <2 0 <2 0 <2 0 <2 0 2729 000 7845 01/03101 3 000 2,100 150 1 600 14 000 b 320 62 <5 0 <50 -50 <5 0 <5 0 27 30 0 00 7844 04111!01 4,600 3200 22D 1 900 22 000 b 410 130 <10 <10 <10 <10 <10 2686 000 7888 07103!01 6 500 5 600 490 2,700 35 000 b 900 <250 <25 <25 <25 <25 <25 27 89 000 7785 10/01101 4 500 3,700 400 1 800 22 000 b $70 <200 <20 <20 <20 <20 <20 2851 000 7723 01103!02 540 470 32 600 $000 b f 29 <25 <2 5 <2 5 <2 5 <2 5 <2 5 2723 000 7851 04/05102 6 700 6100 550 4,600 47 000 b 940 280 <25 <25 <25 170 <25 27 43 000 7831 07/12/02 11 000 7 400 830 4 400 60 000 b 1 500 <500 <50 <50 <50 <50 <50 28 68 000 77 06 10/01102 2,000 1,800 170 1 500 13 000 b 250 <100 <10 <10 <10 <10 <10 2915 0 00 7659 01/10103 110 12D 3 170 1 100 bfi2 <5 0 <0 50 <0 50 <0 50 1 5 <050 27 89 000 7785 04101103 <0 50 <0 50 <0 50 <0 50 140 b 52 <20 <0 50 <0 50 <0 50 <0 50 <0 50 27 99 0 00 7775 07102103 240 12 Ill 120 1 100 b 130 '050 <0 50 <0 50 <0 50 <0 50 <0 50 2822 000 7752 101212003"' — — — — 2951 002 7623 01/09104 <5 0 <50 <5 0 680 29 000 6[____17_ <200 <5 0 <5 0 <5 0 <5 0 <50 2850 000 7724 I GW data 1 Q-04 xis 1 GW Hydro 8 Depth 1 of 8 112012004