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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 3 of 11)
<br /> Well Sampling TOC DTW GW Eley. NAPL TPHd TPHg O&G MTBE B T E x PCBs SVOCs
<br /> ID Date (feet) (feet) (feet) (feet) (Ng/L) (ug/L) (ug/L) (pg/L) (ug/L) (Ng/L) (ug/L) (Ng/L) (Ng/L) (ug/L)
<br /> MW3 04/07/10 15.37 36.20 -20.83 No <50 340 <0.50 3.7 1.1 3-0 31 -
<br /> MW3 08/09/10 15.37 36.02 -20.65 No --- --- -- --- --- -- --- ---
<br /> MW3 08/10/10 15.37 -- --- <50 200 -- <0.50 1.6 <0.50 0.66 17 --
<br /> MW3 10/05/10 15.37 36.83 -21.46 No --- --- --- --- - - --
<br /> MW3 10/06/10 15.37 --- --- <50 250d - <0.50 0.59 <0.50 0.35j 7.2 --_
<br /> MW3 02/09/11 15.37 35.60 -20.23 No <50a 280d -- <0.50 1.9 <0.50 1.9 38 --- ---
<br /> MW3 05/18/11 15.37 32.33 -16.96 No --- --- •--
<br /> MW3 05/19/11 15.37 - --- --- <50 <50 <0.50 <0.50 <0.50 <0.50 <0.50
<br /> MW3 09/22/11 15.37 32.59 -17.22 No 2,000a.d 340d <0.50 0.67 <0.50 <0.50 5.0
<br /> MW3 11/30/11 15.37 31.61 -16.24 No - --- --- --- --- --- --- ---
<br /> MW3 12/01/11 15.37 --- --- 66a,d 370 <0.50 8.2 36 2.8 16 ---
<br /> MW3 03/14/12 15.37 30.68 -15.31 No --- --- --- ••• •- -•-
<br /> MW3 03/15/12 15.37 --- --- --- <50a 130d --- <0.50 <0.50 <0.50 0.71 2.5 --- ---
<br /> MW3 05/03/12 15.37 30.31 -14.94 No <50a 130d --- <0.50 <0.50 <0.50 <0.50 <0 50 --- ---
<br /> MW3 08/24/12 15.37 31.96 -16.59 No <50a 73d --- <0.50 <0.50 <0.50 <0.50 <0.50
<br /> MW3 10/24/12 n 15.37 32.24 -16.87 No --- --
<br /> MW3 01/30/13 15.37 30.62 -15.25 No - ••• --- --- - -
<br /> MW3 01/31/13 15.37 -- -•- --- <50a <50 <0.50 <0.50 <0.50 <0.50 <0.50 - --
<br /> MW3 05/03/13 n 15.37 --- -- -•- --- -- --- --
<br /> MW3 08/21/13 15.37 31.52 -16.15 No <50a <50 --- <0.50 <0.50 <0.50 <0.50 <0.50 ---
<br /> MW3 12/18/13 n 15.37 --- --- --- --- --- --- --- --- --- --- -
<br /> MW4 03/26/07 16.78 34.65 -17.87 No 6,000 120,000 --- <500 9,400 49,000 2,900 17,000 ---
<br /> MW4 06/28/07 16.78 35.61 -18.83 No --- 130,000 <500 8,600 55,000 3,700 21,000 --- ---
<br /> MW4 09/12/07 16.78 38.15 -21.37 No 2,400 150,000 <500 8,800 59,000 4,600 27,000 - -
<br /> MW4 11/26/07 16.78 38.01 -21.23 No 4,900d 110,000 --• <500 9,000 50,000 3,700 21,000 ---
<br /> MW4 02/28/08 16.78 35.56 -18.78 No 13,200 189,000 1.07e 9,880 68,100 4,720 27,000
<br /> MW4 05/29/08 16.78 36.10 -19.32 No 10,500 171,000 <10.0 7,080 67,600 4,830 27,300
<br /> MW4 08/27/08 16.78 38.49 -21.71 No 4,000d 89,000 •.. <25 7,000 51,000 3,700 23,000 -
<br /> MW4 11/13/08 16.78 38.84 -22.06 No 7,000d 100,00og <50 5,800 50,000 3,900 20,000 •-• ...
<br /> MW4 01/28/09 16.78 39.66 -22.88 No 550 140,000 <250 5,500 40,000 3,000 17,000
<br /> MW4 04/29/09 16.78 39.46 -22.68 No 280 140,000 <1,200 7,500 59,000 4,500 25,000
<br /> MW4 07/14/09 16.78 41.17 -24.39 No 250 130,000 <1,200 5,900 59,000 3,300 19,000 -
<br /> MW4 10/27/09 16.78 41.55 -24.77 No ••• •••
<br /> MW4 10/28/09 16.78 --- --- --- 2,200d 120,000 - <1,200 6,100 61,000 4,100 24,000 --- ---
<br /> MW4 01/25/10 16.78 39.68 -22.90 No 520d 150,000d --- <1,200 5,600 54,000 4,400 26,000 -
<br /> MW4 04/07/10 16.78 37.80 -21.02 No 360 110,000 --- <1,000 5,800 57,000 4,000 24,000 --
<br /> MW4 08/09/10 16.78 37.69 -20.91 No 520d 99,000d --- <1,000 4,500 49,000 3,100 19,000
<br /> MW4 10/05/10 16.78 38.43 -21.65 No 680d 180,000 - <1,000 4,600 56,000 3,800 21,000
<br /> MW4 02/09/11 16.78 37.06 -20.28 No 580a,d 110,000d <1,000 5,100 54,000 4,000 22,000
<br /> MW4 05/18/11 16.78 34.12 -17.34 No -- --- --- --- ---
<br /> MW4 05/19/11 16.78 --- --- 410 120,000 -- <1,000 3,300 50,000 3,700 23,000 - -
<br /> MW4 09/22/11 16.78 34.28 -17.50 No -- --- --- --- --- --
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