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TABLE 1A <br /> CUMULATIVE GROUNDWATER MONITORING AND SAMPLING DATA <br /> Former Mobil Service Station 99CAS <br /> 75 East Alpine Avenue <br /> Stockton,California <br /> (Page 7 of 11) <br /> Well Sampling TOC DTW GW Elev. NAPL TPHd TPHg O&G MTBE B T E X PCBs SVOCs <br /> ID Date (feet) (feet) (feet) (feet) (pg/L) (Ng/L) (Ng/L) (ug/L) (Ug/L) (Ng/L) (ug/L) (ug/L) (pg/L) (ug/L) <br /> DWI 08/09/10 16.76 37.59 -20.83 No --- --- --- - --- <br /> DWI 08/10/10 16.76 ••- --- <50 4,400 .-- <10 440 320 180 620 <br /> DWI 10/05/10 16.76 38.34 -21.58 No 73d 5,900 --- 4.5j 510 300 180 590 <br /> DWI 02/09/11 16.76 36.94 -20.18 No <50a 4,200 --- <10 350 730 100 480 <br /> DWI 05/18/11 16.76 34.04 -17.28 No --- --- --- --- --• --- --- --- <br /> DWI 05/19/11 16.76 --- 94d 7,600 -- <10 1,400 2,400 130 710 - <br /> DWI 09/22/11 l 16.76 34.11 -17.35 No --- --- --- ••• --- --- <br /> DWI 11/30/11 16.76 33.05 -16.29 No 190a,d 2,400 --- 5.6 240 320 23 120 --- --- <br /> DWI 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 /> DWI 05/03/12 16.76 31.84 -15.08 No 320a,d 13,OOOd <50 650 230 <50 150 --- ••- <br /> DWI 08/24/12 16.76 33.53 -16.77 No 470a,d 4,300d --- <100 660 200 <100 <100 --- --- <br /> DWI 10/24/12 16.76 33.81 -17.05 No 230a,d 11.000d --- 5.2 270 51 16 41 --- <br /> DWI 01/31/13 16.76 32.15 -15.39 No --- - ... --- --- -- <br /> DWI 02/01/13 16.76 --- --- --- 6,800a,d 120,000 --- <100 3,200 42,000 4,300 21,000 --- <br /> DWI 05/03/13 16.76 32.01 -15.25 No 160a,d 3,100d <50 690 260 71 69 <br /> DWI 08/21/13 16.76 32.35 -15.59 No --- - ••• --- --- --- --- - <br /> DWI 08/22/13 16.76 ••• --- 570a,d 3,300 <12 920 33 130 130 ... <br /> DWI 12/18/13 16.76 32.51 -15.75 No <50a <50 <0.50 0.81 1.9 0.87 5.1 --- <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 0.068j 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 0.092] .-- ... <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 /> DW2 09/22/11 16.01 33.41 -17.40 No <50a <50 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> DW2 11/30/11 16.01 32.34 -16.33 No --- --- --- --- --- <br /> DW2 12/01/11 16.01 --- 55a,d 1,300 <0.50 170 570 25 140 -- <br /> DW2 03/14/12 16.01 31.35 -15.34 No <50a 58d <0.50 8.3 3.1 1.9 4.8 - <br /> DW2 05/03/12 16.01 31.10 -15.09 No <50a 68 --- <0.50 3.7 19 2.3 12 -- <br /> DW2 08/24/12 16.01 32.74 -16.73 No 110a,d <50 <0.50 0.71 0.69 0.88 2.3 <br /> DW2 10/24/12 n 16.01 33.01 -17.00 No --- ••- --- --- --- --- ••• --- <br /> DW2 01/30/13 16.01 31.35 -15.34 No -- <br /> DW2 01/31/13 16.01 •-• --- <50a <50 <0.50 <0.50 <0.50 <0.50 <0.50 - <br />