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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 2 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) (ug/L) (ug/L) (ug/L) (Ng/L) (Ng/L) (Vg/L) (ug/L) (Ng/L)
<br /> MW2 04/29/09 15.28 38.14 -22.86 No 1,100 25,000 --- 570 15,000 <500 150j <500
<br /> MW2 07/14/09 15.28 39.87 -24.59 No 1,400 27,000 --- 390j 17,000 <500 82j <500
<br /> MW2 10/27/09 15.28 40.22 -24.94 No --- --- -•- --- --- --- --- ---
<br /> MW2 10/28/09 15.28 .-- --- 1,300d 18,000 ••- 640 13,000 480.00j 210j 630
<br /> MW2 01/25/10 15.28 38.40 -23.12 No 1,100d 18,OOOd .-- 590 11,000 <250 61j 84j -
<br /> MW2 04/07/10 15.28 36.51 -21.23 No 1,100d 17,OOOd --• 650 11,000 <250 60 68j
<br /> MW2 08/09/10 15.28 36.37 -21.09 No -- - --- ---
<br /> • <50 14,OOOd 620 10,000 <250 71 150
<br /> MW2 08/10/10 15.28 •-• --- •-• 1 1
<br /> MW2 10/05/10 15.28 37.11 -21.83 No --• •-• --• --- ---
<br /> MW2 10/06/10 15.28 --- --- --- 1,100d 20,OOOd 540 8,200 190.00j 91j 110j ---
<br /> MW2 02/09/11 15.28 35.90 -20.62 No 2,900a,d 10,000d 480 5,700 <100 25j 32j --- ---
<br /> MW2 05/18/11 15.28 32.94 -17.66 No - --- --- --• •-• --- --- ---
<br /> MW2 05/19/11 15.28 - ••- --- 1,100d 5,100d --- 460 3,200 <50 <50 <50 ---
<br /> MW2 09/22/11 15.28 32.95 -17.67 No 140a,d 7,900d - 390 3,900 <50 <50 <50 ---
<br /> MW2 11/30/11 15.28 31.83 -16.55 No --- - --- •-• --- --- --- ---
<br /> MW2 12/01/11 15.28 -- --- - 1,900a,d 9,500 410 3,900 80 <50 51
<br /> -15.56 No --- ---
<br /> MW2 03/14/12 15.28 30.84 ••• -- --- --- •--
<br /> MW2 03/15/12 15.28 --- --- -- 2,500a,d 7,200d 590 5,300 <100 <100 <100
<br /> MW2 05/03/12 15.28 30.52 -15.24 No --- - --- --- --- --- ---
<br /> MW2 05/04/12 15.28 --- --- .-- 2,800a,d 10,OOOd 440 3,200 54 <50 89 -
<br /> MW2 08/24/12 15.28 32.26 -16.98 No 3,700a,d 5,100d ... 360 2,200 <50 <50 <50
<br /> MW2 10/24/12 15.28 32.52 -17.24 No 3,100a,d 6,600d 320 2,700 <50 <50 <50 -
<br /> MW2 01/30/13 15.28 30.88 -15.60 No --- --- -- --- --- ---
<br /> MW2 02/01/13 15.28 --- --- 2,400a,d 6,600 280 2,000 <50 <50 <50 ---
<br /> MW2 05/03/13 15.28 30.68 -15.40 No 1,800a,d 5,600d 280 1,400 <20 26 22
<br /> MW2 08/21/13 15.28 31.71 -16.43 No --- --- --- --- --- ---
<br /> MW2 08/22/13 15.28 ... --- ••. 1,600a,d 11,000 89 2,600 150 <20 320 ---
<br /> MW2 12/18/13 15.28 31.67 -16.39 No 760a,d 5,100 -•• 160 150 7.8 <2.5 36 --
<br /> MW3 03/26/07 15.37 33.03 -17.66 No 180 <2,500 ... <25 <25 <25 <25 620 ••• ---
<br /> MW3 06/28/07 15.37 34.05 -18.68 No 730 --- <0.50 4.7 7.0 29 150 -
<br /> MW3 09/12/07 15.37 36.56 -21.19 No <47 220 --- <0.50 3.4 5.8 14 100 ---
<br /> MW3 11/26/07 15.37 36.44 -21.07 No 66d 630 .-. <0.50 9.3 7.0 32 200 --•
<br /> MW3 02/28/08 15.37 34.00 -18.63 No 500 1,790 --- <0.500 7.85 12.5 152 484 ---
<br /> MW3 05/29/08 15.37 34.55 -19.18 No 277 2,500 <0.500 23.0 28.0 54.8 356 -
<br /> MW3 08/27/08 15.37 36.85 -21.48 No 56d 130 <0.50 2.4 3.7 11 75 -
<br /> MW3 11/13/08 15.37 37.33 -21.96 No <47 620g --- <0.50 3.4 1.7 44 350
<br /> MW3 01/28/09 15.37 38.04 -22.67 No <50 390 ... <1.0 11 7.1 22 170
<br /> MW3 04/29/09 15.37 37.76 -22.39 No <50 3,000 <1.0 9.2 5.1 170 1,200 ---
<br /> MW3 07/14/09 15.37 39.43 -24.06 No <50 1,400 <10 <10 <10 58 640 --- •••
<br /> MW3 10/27/09 15.37 39.86 -24.49 No --- --- --- ••• --- --- --- --- --
<br /> MW3 10/28/09 15.37 - --- <50 360 --- <1.0 3.1 0.84j 8.4 110 ---
<br /> MW3 01/25/10 15.37 37.95 -22.58 No <50 520d ... <0.50 6.6 0.36j 7.1 110 -
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