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Table 2:Historical Groundwater Gauging and Analytical Results
<br /> ARCO Service Station No.5469
<br /> Measured Calc.
<br /> m TOC Depth to SPH GW ORO B T E X MTBE TBA DIPE ETSE TAME Ethanol /,2-DCA EDB
<br /> Well No. Date o Elevation Water Thickness Elev. INg1t1 (F•9it1 (PT
<br /> (Ng L) (Vg1L) (PglL1 (Ng1L) (ligtL) (Ia91L) (NgIL) (YgIL) (NglL) (Ng1L)1,0.0-
<br /> mglL) Co....
<br /> _ (ft-MSL) (feel) (feet) ft-MSL
<br /> MW-5 06!08!04 16.01 4293 0.00 -26.82 120 <12 <12 <12 <12 490 <500 <25 <25 <25 <2,500 <12 <12
<br /> 09114/04 16.01 44.42 0.00 -28.41 <500 <5.0 <5.0 <5.0 <5.0 360 J <200 <5.0 <5.0 <5.0 <1,000 <5.0 <5.0 1.8
<br /> 12109!04 16.01 45.20 0.00 -29,19 130 <5.0 <5.0 <5.0 <5.0 310 <200 <10 <10 <10 <1,000 <5.0 <5.0 3.5
<br /> 03116/05 16.01 44.22 0.00 -28.21 280 <2.5 <2.5 <2.5 <2.5 160 <100 <2.5 <2.5 <2.5 <500 <2.5 <2.5 2.0
<br /> 06108/05 16.01 42.51 0.00 -26.50 <500 <5.0 <5.0 <5.0 <5.0 160 <200 <5.0 <5.0 45.0 <1,000 <5.0 <5.0 4.6
<br /> 09/08/05 16.01 42.92 0.00 -26.91 55 4.50 <0.50 <0.50 <0.50 57 <20 <0.50 <0.50 <0.50 -4100 <0.50 <0.50 4.0
<br /> 12!08105 1601 43.37 0.00 -27.36 <50 <0.50 <0.50 50.50 <0.50 56 <20 <0.50 <0.50 <0.50 <100 <0.50 <0.50 4.5
<br /> 02!27106 INA 16.01 41.77 D.00 -25.76 - - - - - - - - - - - - -
<br /> 03/06106 1601 41.90 0.00 -25.69 <100 <1.0 <1,0 <1.0 <1.0 110 <40 0.0 <1.0 <1.0 <600 <10 <1.0 3.8
<br /> 05/30106 16.01 38.10 0.00 -22.09 <100 <1.0 <1.0 <1.0 H.0 87 <40 0.0 <1.0 <1.0 <600 <1.0 <1.0 3.0
<br /> 09/06/06 16.01 38.40 0.00 -22.39 <50 <0.50 <0.50 <0.50 <0.50 15 <20 <0.50 <0.50 <0.50 <300 <0.50 <0.50 1.4
<br /> 12126106 16.01 38.00 0.00 -21.99 <50 <0.50 <0.50 <0.50 <0.50 8.2 <20 -40.50 <0.50 <0.50 <300 <0.50 <0.50 5.2
<br /> 02119107 16.01 37.72 0.00 -21.71 <50 <0.50 <0.50 <0.50 <0.50 5.7 <20 <0.50 <0.50 <0.50 <300 <0.50 <0.50 3.7
<br /> 06125107 16.01 36.87 0.00 -20.86 - - - - - - - - - -
<br /> 061251D7 16.01 37.06 0.00 -21.05 <50 CO.50 -40.50 <0.50 <0.50 1.0 <20 <0.50 <0.50 -40.50 <300 <0.50 <0.50 6.4
<br /> 09112/07 16.01 37.50 0.00 -21.49 <W <0.50 <0.50 <0.50 <0.50 1.5 <20 <0.50 <0.50 <0.50 <300 <0.50 <0.50 1.7
<br /> 12119/07 INA 16.01 - - - - - - - - - - - - Due to construction
<br /> 03/17/08 16-01 36.70 0.00 -20.69 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 1.07
<br /> 06118/08 16.01 36.55 0.00 -20.54 <50 <0.50 <0.50 <0.50 0.50 <0.50 <10 <0.50 0.50 <0.50 <300 <0.50 <0.50 4.82
<br /> 09/04/08 16.01 37.57 0.00 -21.56 <50 <0.50 <0.50 <0.50 <D.50 <0.50 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 1.45
<br /> 11/18/08 NS 16.01 38.32 0.00 -22.31 - - - - - - - - - - -
<br /> 121D9/08 16.01 38.69 0.00 -22.68 <5O <0.50 <0.50 <0.50 <0.50 0.89 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 3.63
<br /> 02!04109 16.01 38.23 0.00 -22.22 <50 <0.50 <0.50 e0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 6.1
<br /> 05/11109 16.01 37.88 0.00 -21.67 <50 <0.50 0.50 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 2.97
<br /> 1213UO09 16.01 39.67 0.00 •23.66 <50 50.50 <0.50 <0.50 <0.50 <0.50 <10 <0.50 <0.50 <0.50 <300 <0.50 <0.50 3.37
<br /> 61212010 SA 16.01 - - - - - - - - - - - -
<br /> 11109110 16.01 38.16 0.00 -22.15 <50 <0.50 <0.50 <0.50 <0.50 6.9 <10 <0.50 1.00
<br /> 06114111 NS 16.01 35.15 0.00 49.44 - - 1.06
<br /> MW-6 06/21100 NP 15.89 36.42 0.00 -20.53 <50 <2.0 <2.0 <2.0 <2.0 4,120 <200 <2.0 4.1 4.6 <3,000 <2.0 d.0
<br /> MOM NP 15.89 38.07 0.00 -22.18 <50 -40.50 <0.50 <0.50 <0.50 6,320 <200 <2.0 5.0 8.1 <3,000 <2.0 <2.0
<br /> 12/11/00 NP 15.89 38.39 0.00 -22.50 <500 <5.0 <5.0 <5.0 <5.0 6,910 <200 <2.0 3.1 9.3 <3,000 <2.0 <2.0
<br /> 03122/01 15.89 37.13 0.00 -21.24 <5DO <5.0 <5.0 <5.0 <5.0 8,290 <200 <20 <20 <20 - <20 <20
<br /> 05124/01 15.89 36.85 0.00 -20.96 <500 <5.0 <5.0 <6.0 <5.0 16,100 241 <2.0 4.5 21 <2.0 <2.0
<br /> 06125/01 NS 15.89 37.36 0.00 -21.47 - -
<br /> 09114/01 15.89 36.90 0.00 -23.01 <50 <0.50 CO.50 <0.50 <0.50 22,000 <2,000 <20 <20 22 <ZD <20
<br /> 12114/01 15.89 40.00 0.00 -24.11 <50 0.85 <0.50 <0.50 <0.50 14,000 <50 <5.0 <5.0 17 <5.0 <5.0
<br /> 02121!02 15.89 39.95 0.00 -24.06 58 N 3.3 <0.50 <0.50 <0.5D 45,000 <5,001) 4500 <500 <500 <500 <500 (\
<br /> 04/23/02 15.89 39.78 0.D0 -23.89 <1.000 <10 <10 <10 <10 50,000 <5,D00 <500 <500 <500 <500 <500
<br /> D9119102 15.89 41.78 0.DO -25.89 55,000 <100 <100 <100 <100 69,000 590 <50 <50 110 <5,D00 <60 <50 Past holding time
<br /> 12!11102 15.89 42.64 0.00 -26.75 39,000 el,000 <1,000 <1,000 <1,000 85,000 <40,000 <1,000 0,000<1,000 0,000 <1,000
<br /> 01/14103 NP 15.89 - - 33,001) <250 <250 <250 <250 67,000 <40,000 <1,000-41,000<1,000
<br /> 0202103 NP 15.89 <W,000 <500 <500 <500 <500 42,000 <20,000 <500 <500 <500 <40,000 -
<br /> 02r2fi103 15.89 42.01 0.00 -26.12 <100,000<1,000 <1,000 -41,000 <1,000 31,000 <40,000 <1,000<1,000<1,000 <80,000 <1,000 0,I100
<br /> 05/19103 15.89 41.58 0.00 -25.69 29,000 <50 <50 <50 <50 59,000 <4,000 <200 <200 <200 <20,000 <100 <100
<br /> 09/09/03 15.89 43.01 0.00 -27.12 8,800 R <0.50 <0.50 <0.50 <0.50 49,000<100,000<5,000<5,000<5,000<500.000 <2,500 <2,500
<br /> 12110/03 15.89 43.67 0.00 4778 25,000 R <50 <60 <50 <50 46,000 <2,000 <100 <100 <100 <10,000 <50 <50 Past holding 0me
<br /> 03104/04 15.89 43.05 0.00 -27.16 5,700 R <100 <100 <100 <100 37,000 <4,000 <200 <200 <200 <20.000 <101) <100
<br /> 06108/04 15.89 42.57 0.00 -26.68 3,400 <500 <500 <500 <500 15,000 <20,DDO <1,000<1,000<1,000-4100.000 <500 <500
<br /> 09114/04 15.89 44.29 0.00 -28.40 <25,000 <250 <250 <250 <250 12,000 <10,000 <250 <250 <250 -45(),000 <250 -4250 0.9
<br /> 12109/04 15.89 45.20 0.00 -29.31 3,000 <120 <120 <120 <120 7,700 <5,000 <250 <250 <250 <25,000 <120 <120 3.0
<br /> 03116/05 15.89 44.04 0.00 -28.15 1,800 <10 <10 <10 <10 1,500 <400 <10 <10 <10 <2,000 <10 <10 1.1
<br /> OOID8105 15.89 42.30 0.DO -26.41 <25,000 <250 <250 <260 X150 18,000 <10,000 <250 <250 <250 <50,000 <250 <250 1.3
<br /> 6469 Tables.Am Page 5 of 12
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