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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 />SPH
<br />(ft)
<br />GWE
<br />(ft-MSL)
<br />TPH-
<br />DRO
<br />TPH-
<br />GRO a
<br />(pg/L)
<br />T
<br />(pg/L) (p
<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 />E DB
<br />(pg/L)
<br />D.O.
<br />(mg/L) Comments
<br />MW-4 05/26/95 208 14 77 000 -1269 64,000 4,900 4,300 2,400 13,000
<br />MW-4 08/25/95 2.08 15.88 0.00 -13.80 73,000 6,200 4,100 2,600 14,000
<br />MW-4 11/30/95 2.08 16.74 0.00 -14.66 73,000 4,200 3,500 2.000 12,000
<br />MW-4 03/26/96 2.02 10.70 0.00 -8.68 48,000 3,300 1,600 1,300 6,100
<br />MW-4 05/16/96 2.02 10.48 0.00 -8.46 43,000 3,800 2,000 1,300 6,500
<br />MW-4 08/22/96 2.02 14.18 0.00 -12.16 46,000 3,800 2,400 1,600 8,800
<br />MW-4 11/05/96 I NA 2.02 -- - -- _ -- -- - -- --
<br />MW-4 02/25/97 2.02 8.78 0.00 -6.76 44,000 4,100 1,900 1,800 7,500 1,600 -
<br />MW-4 05/20/97 202 9.95 0.00 -7.93 46,000 3,400 1,700 1,500 7,200 <250
<br />MW-4 08/26/97 2.02 12.37 0.00 -10.35 3.4,000 5,400 540 2,000 1,900 250 -- --
<br />MW-4 11/05/97 202 13.60 0.00 -11.58 37,000 2,700 1,300 1,400 5,900 1,100 <2,500 <50
<br />MW-4 02/10/98 2.02 479 0.00 -2.77 15,000 1,600 220 720 1,900 <50 - --
<br />MW-4 05/20/98 1 55 6.40 0.00 -4.85 22,000 2,600 140 1,100 1,000 410 <1,670 <33
<br />MW-4 08/12/98 1.55 8.71 0.03 -7.16 18,000 1,700 380 960 2,500 <25 -- --
<br />MW-4 12/01/98 INA 1.55 -- - -- -- -- -- -- -- --
<br />MW-4 02/02/99 1 55 7.79 0.00 -6.24 1,800 2,200 430 1,100 3,100 1,100 -
<br />MW-4 05/20/99 1.55 7.68 0.00 -6.13 14,000 1,900 230 740 1,600 <2.5
<br />MW-4 09/01/99 1.55 10.41 0.00 -8.86 9,530 930 131 340 1,000 <125 - - -
<br />MW-4 12/07/99 1.55 10.76 0.00 -9.21 10,700 906 104 311 1,000 301 - -
<br />MW-4 02/15/00 1 55 5.62 0.00 -4.07 12,600 1,040 135 579 1,180 50.2 -
<br />MW-4 05/31/00 (NA 1.55 -- -- -- -- -- -- -- .... -- -
<br />MW-4 08/25/00 INA 1.55 - - -- -- - -
<br />MW-4 11/21/00 INA 1 55 - - -
<br />MW-4 12/02/00 INA 1.55 -- - -- -- - -- - -- -- - - -
<br />MW-4 02/14/01 1.55 9.54 0.00 -7.99 137,002 3,630 126 106 129 1,220 - -
<br />MW-4 05/16101 1.55 8.07 0.00 -6.52 ' 131,002 4,290 171 369 697 <1.0 - - -
<br />MW-4 08/21/01 1.55 11.02 0.00 -9.47 23,000 3,700 700 1,400 3,700 2.1 - -
<br />MW-4 11/20/01 1.55 11.87 0.00 -10.32 30,000 2,800 620 1,200 3,300 <100 1.4
<br />MW-4 02/22/02 1.55 8.23 0.00 -6.68 20,000 2,300 350 790 1,600 <100 - - - 1.1
<br />MW-4 05/24/02 1.55 8.49 0.00 -6.94 , 24,000 2,300 310 730 1,600 <100 - - - 1.5
<br />MW-4 08/28/02 1.55 11.27 0.00 -9.72 34,000 2,300 510 1,100 2,900 <2 - -- - - 1.9
<br />MW-4 11/14/02 143 12.25 0.00 -10.82 14,000 3,800 95 100 75 <2.0 - - - 14.3
<br />MW-4 02/20/03 1.43 8.68 000 -7.25 19,000 1,300 310 730 1,900 <2 - - - 3.5
<br />MW-4 05/22/03 1.43 8.85 0.00 -7.42 18,000 770 270 630 1,400 <2 - - - -
<br />MW-4 08/21/03 1.43 10.29 0.00 -8.86 19,000 730 290 980 2,300 <2 - - <2 <2 2.6
<br />MW-4 11/24/03 -- 10.15 0.00 -- 21,000 680 310 1,000 2,100 <2 - <2 <2 2.1 TOC altered; unable to determine GWE
<br />MW-4 02/16/04 111 8.35 0.00 -7.24 26,000 620 290 950 2,000 <2 - - -- 26
<br />MW-4 05/17/04 1.11 9.00 0.00 -7.89 11,000 450 190 560 960 <2 2.2
<br />MW-4 08/23/04 111 11.29 0.00 -10.18 - 16,000 360 160 590 1,100 <2 - -- 1.8
<br />MW-4 11/15/04 INA 111 -- -- -- -- -- -- - -- - - Looked fence
<br />MW-4 02/14/05 1.11 10.31 0.00 -9.20 - 7,200 1,100 47 17 34 <2 - 2.4
<br />MW-4 05/16/05 1.11 8.11 0.00 -7.00 14,000 4,600 86 25 56 <5 - - 1.9
<br />MW-4 08/15/05 1.11 10.32 0.00 -9.21 11,000 1,200 47 190 320 <2 - - 1.6
<br />MW-4 11/14/05 1.11 11.30 0.00 -10.19 - 5,900 420 47 260 310 <2 - - - 1.8
<br />MW-4 02/13/06 1.11 7.78 000 -6.67 2,700 190 12 8 86 <2 - - 1.9
<br />MW-4 05/15/06 1.11 6.93 0.00 -5.82 14,000 3,400 71 20 43 <5 - 1.5
<br />MW-4 08/14/06 1.11 9.54 000 -8.43 1,300 910 25 130 140 <2 1.7
<br />MW-4 11/13/06 1.11 10.29 0.00 -9.18 4,100 310 6 56 9 <2 - 0.9
<br />MW-4 02/12/07 1.11 8.61 0.00 -7.50 3,500 180 20 83 170 <0.5 - - 1.1
<br />MW-4 05/14/07 1.11 8.87 0.00 -7.76 9,600 500 83 450 370 <2 - 1.9
<br />MW-4 08/13/07 1.11 10.91 0.00 -9.80 3,700 87 9 1 100 <0.5 - - 0.9
<br />94054 GW Tables.xls
<br /> Page 9 of 29
<br /> Stan tec
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