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TABLE 1A <br /> CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br /> Former Mobil Service Station 99CAS <br /> 75 E.Alpine Avenue <br /> Stockton,California <br /> (Page 5 of 8) <br /> Well sampling TOC DTW GW Elev. NAPL TPHd TPH9 O&G MTBE B T E x PCBs SVOCs <br /> Il) Dale OeeO (feet) (feet) (feet) (Ng/L) (pgIL) (Ng/L) (4L) (Ng/L) (ug/L) (pg/L) (Ng/L) (pg/L) (pWL) <br /> MW8 07/14/09 15.45 40.74 -25.29 No <50 <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- --- <br /> MW8 10/27/09 15.45 41.02 -25.57 No <50 <50 --- <0.50 <0.50 1.0 0.12j 0.81 --- <br /> MW8 01/25/10 15.45 38.85 -23.40 No <50 <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- <br /> MW8 04/07/10 15.45 37.00 -21.55 No <50 <50 --- <0.50 <0.50 <0.50 <0.50 0.15j --- <br /> MW8 08/09/10 15.45 37.05 -21.60 No <50 <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- --- <br /> MW8 10/05/10 15.45 37.75 -22.30 No <50 <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- <br /> MW8 02/09/11 15.45 36.50 -21.05 No <50a <50 --- <0.50 <0.50 <0.50 <0.50 0,091j --- --- <br /> MW8 05/18/11 15.45 33.55 -18.10 No <50b <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 <br /> MW8 09/22/11 15.45 33.42 -17.97 No <50a 82 --- <0.50 16 9.9 3.3 6.6 <br /> MW8 11/30/11 15.45 32.37 -16.92 No <50a <50 --- <0.50 <0.50 1.5 <0.50 <0.50 --- <br /> MW8 03/14/12 15.45 31.26 -15.81 No <50a <50 --- <0.50 0.53 <0.50 <0.50 <0.50 --- --- <br /> DW1 02/23/09 16.99 39.48 -22.49 No --- 59,000 --- <50 5,600k 12,OOOk 1,800k 9,800k --- <br /> DW1 04/29/09 16.99 39.35 -22.36 No <50 37,000 --- <250 2,800 6,500 870 4,600 --- <br /> DW1 07/14/09 16.76 41.17 -24.41 No <50 14,000 --- <50 1,200 2,500 470 2,400 --- --- <br /> DW1 10/27/09 16.76 41.44 -24.68 No 57d 8,000 --- <25 990 1,100 360 1,500 --- <br /> DW1 01/25/10 16.76 39.59 -22.83 No 73d 6,400 --- <12 640 590 260 1,000 --- <br /> DW1 04/07/10 16.76 37.65 -20.89 No <50 5,700 --- 4.1j 550 500 240 900 <br /> DW1 08/09/10 16.76 37.59 -20.83 No --- --- ___ ___ ___ --- <br /> DW1 08/10/10 16.76 --- --- <50 4,400 --- <10 440 320 180 620 <br /> DW1 10/05/10 16.76 38.34 -21.58 No 73d 5,900 --- 4.5j 510 300 180 590 --- --- <br /> DW1 02/09/11 16.76 36.94 -20.18 No <50a 4,200 -- <10 350 730 100 480 --- --- <br /> DW1 05/18111 16.76 34.04 -17.28 No ••. ___ ___ ___ ___ ___ ___ ___ --- <br /> DW1 05119/11 16.76 --- --- 94d 7,600 --- <10 1,400 2,400 130 710 --- --- <br /> DW1 09/22/11 1 16.76 34.11 -17.35 No --- ___ ___ ___ ___ ___ ___ ___ __- <br /> DW1 11/30/11 16.76 33.05 -16.29 No 190a,d 2,400 --- 5.6 240 320 23 120 --- --- <br /> DW1 03/14/12 16.76 31.98 -15.22 No --- --- ... ... --- --- --- .„ -_, --_ <br /> DWI 03/15/12 16.76 --- --- --- 400a,d 3,600 --- <25 540 330 57 190 .-- .-- <br /> DW2 02/23/09 16.76 37.47 -20.71 No --- 970 --- <2.0 45k 55k 14k 70k --- --- <br /> DW2 04/29/09 16.76 38.67 -21.91 No <50 51 --- <0.50 1.9 1.3 0.24j 2.7 --- --- <br /> DW2 07/14/09 16.01 40.51 -24.50 No <50 60 --- <0.50 0.86 0.69 0.089] 1.0 --- --- <br /> DW2 10/27/09 16.01 40.75 -24.74 No ___ ___ __- ___ ___ ___ ___ ___ <br /> DW2 10/28/09 16.01 --- --- <50 50 --- <0.50 1.6 2.4 0.64 1.8 --- --- <br /> DW2 01/25/10 16.01 38.79 -22.78 No <50 <50 --- <0.50 <0.50 <0.50 0.090] 0.42j --- --- <br /> DW2 04/07/10 16.01 36.95 -20.94 No <50 <50 --- <0.50 <0.50 <0.50 0.068] 0.27j --- --- <br /> DW2 08/09/10 16.01 36.86 -20.85 No --- --- ___ ___ ___ ___ ___ ___ ___ ___ <br /> DW2 08/10/10 16.01 --- --- •-• <50 <50 --- <0.50 <0.50 <0.50 <0.50 0.092j --- --- <br /> DW2 10/05/10 16.01 37.59 -21.58 No --- --- ___ ___ ___ ___ ___ ___ ___ ___ <br /> DW2 10/06/10 16.01 --- --- --- <50 62d --- <0.50 <0.50 <0.50 <0,50 0.099j --- --- <br /> DW2 02/09/11 16.01 36.23 -20.22 No <50a <50 --- <0.50 <0.50 0.38j <0.50 0.32j --- --- <br /> DW2 05/18/11 16.01 33.40 -17.39 No --- --- ___ ___ ___ ___ ___ ___ ___ ___ <br /> DW2 05/19/11 16.01 --- --- 73d <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 --- --- <br />