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TABLE 2
<br />Historical Groundwater Monitoring & Analytical Data
<br />Former Chevron Service Station No. 94054
<br />2103 Country Club Boulevard, Stockton, California
<br />Well No. Date Notes TOC
<br />(ft-MSL)
<br />Depth
<br />to
<br />Water
<br />IR)
<br />SPH
<br />(ft)
<br />GWE
<br />(ft-MSL)
<br />TPH-
<br />DRO
<br />(pg/L)
<br />T PH-
<br />GRO
<br />(pg/L)
<br />B
<br />(pgIL)
<br />T
<br />(pg/L)
<br />E
<br />(pg/L)
<br />X
<br />(pg/L)
<br />MTBE
<br />(pg/L)
<br />TBA
<br />(pg/L)
<br />TAME
<br />(pg/L)
<br />1 ,2-
<br />DCA EDB
<br />(pg/L)
<br />D.O.
<br />(mg/L) Comments
<br />MW-6 05/22/03 0.68 8.15 0.00 -747 4,600 1,000 35 17 77 100 --
<br />MW-6 08/21/03 0.68 10.45 0.00 -9.77 - 4,000 1,200 34 18 70 64 <2 <2
<br />MW-6 11/24/03 0.68 10.82 0.00 -10.14 6,200 1,400 54 84 69 19 <2 <2
<br />MW-6 02/16/04 0.68 8.08 0.00 -7.40 12,000 2,100 71 110 100 10 --
<br />MW-6 05/17/04 0.68 8.50 0.00 -7.82 11,000 2,100 180 140 270 28
<br />MW-6 08/23/04 0.68 10.73 0.00 -10.05 8,900 1,300 74 110 140 8
<br />MW-6 11/15/04 0.68 10.36 0.00 -9.68 8,500 1,400 67 130 100 6 -
<br />MW-6 02/14/05 0.68 9.76 0.00 -9.08 5,200 990 35 17 55 15
<br />MW-6 05/16/05 0.68 7.85 0.00 -7.17 11,000 2,600 270 230 380 40
<br />MW-6 08/15/05 0.68 9.68 0.00 -9.00 7,100 1,200 65 66 210 26
<br />MW-6 11/14/05 0.68 10.68 0.00 -10.00 6,100 1,300 44 31 140 22
<br />MW-6 02/13/06 0.68 7.33 0.00 -6.65 8,300 1,200 49 29 86 8
<br />MW-6 05/15/06 0.68 6.48 0.00 -5.80 1,900 240 82 49 110 7 - --
<br />MW-6 08/14/06 0.68 8.92 0.00 -8.24 - 1,400 220 6 10 8 6 - - - 1.9
<br />MW-6 11/13/06 0.68 9.74 0.00 -9.06 2,800 510 16 8 17 23 - 1.7
<br />MW-6 02/12/07 0.68 8.11 0.00 -7.43 5,100 1,000 21 5 30 33 0.9
<br />MW-6 05/14/07 0.68 8.35 0.00 -7.67 4,300 1,000 25 12 28 37 2.0
<br />MW-6 08/13/07 0.68 10.31 0.00 -9.63 6,000 1,100 34 26 40 40 1.8
<br />MW-6 11/12/07 0.68 10.70 0.00 -10.02 8,600 1,500 44 35 54 24 - 1.5
<br />MW-6 02/11/08 0.68 6.90 0.00 -6.22 3,500 560 18 5 23 12 1.2
<br />MW-6 05/12/08 0.68 8.18 0.00 -7.50 3,000 630 20 7 23 19 2.2
<br />MW-6 08/11/08 0.68 10.27 0.00 -9.59 - 4,900 770 27 22 31 20 -- -- 1.7
<br />MW-6 11/10/08 3.25 10.57 0.00 -7.32 8,800 1,200 48 61 33 <25 <25 <25 1.3
<br />MW-6 02/09/09 3.25 9.35 0.00 -6.10 5,300 850 29 10 36 5 <0.5 <0.5 1.0
<br />MW-6 05/11/09 3.25 6.81 0.00 -3.56 6,300 950 25 9 25 5 <1 <1 1.2
<br />MW-6 11/23/09 3.25 10.88 0.00 -7.63 -- 5,400 860 38 68 46 4 <0.5 <0.5 0.9
<br />MW-6 05/17/10 3.25 7.47 0.00 -4.22 - 3,400 590 5 5 4 4 <0.5 <0.5 1.1
<br />MW-6 11/03/10 3.26 10.43 0.00 -7.17 - 2,300 250 8 9 7 3 -- -- 1.2
<br />MW-6 01/05/11 3.26 7.29 0.00 -4.03 460 22 <0.5 <0.5 <0.5 3 - 0.6
<br />MW-6 08/02/11 3.26 8.76 0.00 -5.50 - 1,500 160 10 4 18 110 1.1
<br />MW-6 02/03/12 3.26 8.98 0.00 -5.72 5,900 950 32 9 36 62 1.3
<br />MW-6 08/09/12 3.26 10.15 0.00 -6.89 5,000 690 23 7 23 38 - - 1.1
<br />MW-6 03/14/13 3.26 7.93 0.00 -4.67 1,300 130 3 1 2 9 - 1.0
<br />MW-6 09/25/13 3.26 10.58 0.00 -7.32 1,900 180 6 2 4 8 1.8
<br />MW-6 03/18/14 3.26 8.57 0.00 -5.31 2,000 450 10 5 5 3 1.2
<br />MW-6 09/29/14 3.26 11.80 0.00 -8.54 - 2,000 300 11 14 12 2 - - 1.4
<br />MW-6 03/25/15 3.26 8.76 0.00 -5.50 2,000 280 5 4 3 0.8 - -- - 1.0
<br />MW-6 09/28/15 3.26 12.45 0.00 -9.19 880 87 1 2 0.8 <2 <2 <2 1.4
<br />MW-6 03/28/16 3.26 7.93 0.00 -4.67 3,400 310 11 18 6 <3 - <3 <3 1.4
<br />MW-6 09/26/16 3.26 11.88 0.00 -8.62 -- 340 <0.6 <0.5 <0.6 <0.6 <2 - <2 <2 -- 1.4
<br />MW-7 10/01/92 1.40 21.86 0.00 -20.46 6,900 1,700 260 190 560 -
<br />MW-7 11/30/92 1.40 22.08 0.00 -20.68 -- -- -- -- --
<br />MW-7 12/28/92 1.40 21.46 0.00 -20.06 -- -- -- - -
<br />MW-7 01/15/93 1.40 20.53 0.00 -19.13 5,600 2,700 230 310 440 --
<br />MW-7 04/21/93 1.40 16.83 0.00 -15.43 24,000 2,700 2,000 860 2,500
<br />MW-7 08/20/93 1.40 18.46 0.00 -17.06 15,000 3,100 .1,400 710 1,900
<br />MW-7 11/22/93 1.40 19.09 0.00 -17.69 19,000 2,500 680 780 1,300
<br />MW-7 02/17/94 1.40 17.84 0.00 -16.44 18,000 2,900 440 520 660
<br />MW-7 05/23/94 1.40 17.09 0.00 -15.69 16,000 2,500 560 410 890
<br />MW-7 08/15/94 1.40 18.56 0.00 -17.16 11,000 2,700 260 290 500
<br />MW-7 11/23/94 1.40 19.12 0.00 -17.72 2,700 640 25 43 67 -- --
<br />94054 GW Tables.xls
<br /> Page 14 0128
<br /> Stantec
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