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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 />(ft)
<br />SPH
<br />(ft)
<br />GWE
<br />(ft-MSL)
<br />TPH-
<br />DRO
<br />(pg/L)
<br />TPH-
<br />GRO
<br />(pg/L)
<br />B
<br />(pg/L)
<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
<br />(pg/L)
<br />EDB
<br />(pg/L)
<br />D.O.
<br />(mg/L) Comments
<br />MW-1 11/05/86 10.93 0.00 _
<br />MW-1 11/13/86 10.97 0.00 -- -
<br />MW-1 09/09/87 -- - -- 14,000 17,000 25,000 2,500 16,600
<br />MW-1 08/19/88 1.28 13.58 0.00 -12.30 62,000 - -
<br />MW-1 09/15/88 1.28 14.14 0.00 -12.86 - - 13,000 17,000 2,000 13,000
<br />MW-1 06/26/92 1.28 2033. 0.00 -19.05 370 120,000 6,900 14,000 1,800 13,000
<br />MW-1 10/01/92 1.40 21.84 0.00 -20.44 - 98,000 4,400 7,600 1,500 10,000
<br />MW-1 11/30/92 1.40 22.05 000 -20.65 -- -- - --
<br />MW-1 12/28/92 1.40 21.39 0.00 -19.99 - - - -- -
<br />MW-1 01/15/93 1_40 2035. 0.00 -18.95 - 140,000 6,600 12,000 1,900 12,000
<br />MW-1 04/21/93 1.40 16.60 0.00 -15.20 160,000 12,000 17,000 2,600 18,000
<br />MW-1 08/20/93 1.40 18.50 0.00 -17.10 51,000 5,900 11,000 1,900 13,000
<br />MW-1 11/22/93 1.40 19.03 0_00 -17.63 - 51,000 4,500 8,300 1,300 9,000
<br />MW-1 02/17/94 1.40 17.47 0.00 -16.07 - 47,000 6,600 11,000 2,000 14,000 -
<br />MW-1 05/23/94 1.40 17.02 0.00 -15.62 55,000 7,000 11,000 1,600 12,000 -
<br />MW-1 08/15/94 1.40 18.53 0.00 -17.13 - 50,000 5,700 9,900 1,600 11,000 -
<br />MW-1 11/23/94 1.40 19.10 0.00 -17.70 50,000 6,600 9,800 1,700 11,000
<br />MW-1 02/23/95 1.40 16.28 0.00 -14.88 30,000 3,100 1,700 5,200 3,800 - -
<br />MW-1 05/26/95 1.40 14.51 0.00 -13.11 75,000 8,700 11,000 1,700 12,000 -
<br />MW-1 08/25/95 1.40 15.38 0.00 -13.98 56,000 4,400 4,300 1,200 7,100 -
<br />MW-1 11/30/95 1.40 16.11 0.00 -14.71 75,000 6,800 7,200 1,500 9,500 - - -
<br />MW-1 03/26/96 1.32 10.68 0.00 -9.36 - 94,000 13,000 7,600 1,700 10,000 - - -
<br />MW-1 05/16/96 1.32 10.05 0.00 -8.73 70,000 11,000 6,900 1,300 8,300 - - -
<br />MW-1 08/22/96 1.32 12.81 0.00 -11.49 87.000 13,000 11,000 1,600 12,000 - -
<br />MW-1 11/05/96 1.32 13.69 0.00 -12.37 - 110,000 15,000 13,000 2,100 15,000 770 - - -
<br />MW-1 02/25/97 1.32 748 0.00 -6.16 -- 72,000 13,000 6,600 1,700 9,100 1,500
<br />MW-1 05/20/97 1.32 9.15 0.00 -7.83 - 88,000 10,000 6,000 1,800 9,000 <500 - -
<br />MW-1 08/26/97 1.32 11.53 0.00 -10.21 - 95,000 14,000 10,000 1,800 11,000 560 -- --
<br />MW-1 11/05/97 1.32 12.60 0_00 -11.28 - 95,000 11.000 8,500 1,600 9,800 680 <5,000 <100 -
<br />MW-1 02/10/98 1.32 4.24 0.00 -2.92 - 73,000 10,000 4,400 1,900 9,000 <500 -- -- -
<br />MW-1 05/20/98 0.84 579 0.00 -4.95 120,000 13,000 6,300 2,300 10,000 1,100 <5,000 <100
<br />MW-1 08/12/98 0.84 891 0.00 -8.07 47.000 7,200 3,600 1,200 4,700 <500 - --
<br />MW-1 12/01/98 0.84 8.78 0.00 -7.94 74,000 13,000 5,300 2,100 10,000 <1000 <2,000 <40
<br />MW-1 02/02/99 0.84 7.41 0.00 -6.57 45,000 8,100 3,000 1,100 7,000 1,200 -- _.
<br />MW-1 05/20/99 0.84 7.27 0.00 -6.43 - 65,000 13,000 7,100 1,900 11,000 <2.5 -
<br />MW-1 09/01/99 0.84 9.69 0.00 -8.85 - 77,300 11,800 6,950 2,050 9,800 <1250
<br />MW-1 12/07/99 0.84 10.43 0.00 -9.59 49,100 8,730 3,360 1,230 5,120 <1000
<br />MW-1 02/15/00 0.84 5.27 0.00 -443 - 51,200 9,260 1,470 2,370 5,790 985 -
<br />MW-1 05/31/00 0.84 7.01 0.00 -6.17 - 38,000 11,000 3,000 2,200 7,500 1,400 -
<br />MW-1 08/25/00 0.84 9.17 0.00 -8.33 46,000 6,900 2,100 1,100 5,200 <1,300
<br />MW-1 11/21/00 0.84 8.91 0.00 -8.07 - -- -- - - -- -
<br />MW-1 12/02/00 0.84 10.25 0.00 -9.41 - 45,000 4,700 4,900 940 5,300 1,200
<br />MW-1 02/14/01 0.84 9.60 0.00 -8.76 - 63,700 6,760 6,800 1,850 7,420 1,800 -
<br />MW-1 05/16/01 0.84 7.30 0.00 -6.46 23,300 3.620 1,530 1,190 3,070 120 - - -
<br />MW-1 08/21/01 0.84 10.46 0.00 -9.62 - 44,000 7,700 3,200 1,800 4,300 260 -
<br />MW-1 11/20/01 0.84 11.30 0.00 -10.46 48,000 6,300 4,900 1,500 5,900 200 1.1
<br />MW-1 02/22/02 0.84 8.12 0.00 -7.28 27,000 2,700 1,000 1,100 3,200 86 1.9
<br />MW-1 05/24/02 0.84 7.83 0.00 -6.99 32,000 3,100 830 1,400 2,700 64 - - 2.1
<br />MW-1 08/28/02 0.84 10.60 0.00 -9.76 46,000 4,300 2,700 1,300 4,800 77 2.4
<br />MW-1 11/14/02 INA 0.76 -- - - - - -- - - -- - Connected to vapor extraction system
<br />MW-1 02/20/03 .._ 9.45 0.00 28,000 2,200 1,100 940 3,100 76 0.5 TOC altered; unable to determine OWE
<br />94054 OW Tables.xls
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<br />Stantec
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