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TABLE T 1I)
<br /> GROUNDWATER MONITORING DATA
<br /> Beacon Station No.12474
<br /> 3440 East Main Street,Stockton,California
<br /> ethyl- total =GEl.vati
<br /> GW
<br /> Well TPHg benzene toluene benzene xylenes MTBE DIPE ETBE TAME TBA methanol ethanol EDC EDBon Elevation
<br /> Number Date (uglL) (ug/L) (uglL) (ug1L) (uglL) (ug/L) (uglL) (uglL) (ug/L) (ug/L) (uglL) (uglL) (uglL)(uglLsl) (feet msl) Comments
<br /> MW-7 0321MI <50 10.50 <0-50 '0.50 '0.50 150 no no no no no no no na 61.75 25.66 -36.09
<br /> screened 06110/98 150 10.50 '0.50 10.50 '0.50 '5.0 no no no no no no no no 59.04 -33,38 no odor l no sheen
<br /> Interval 09/08196 150 10.50 10.50 10,50 <R50 10.50 <050 10.50 <0.50 <5.0 150 <5.0 na no 59,19 -33.53 no odor l no sheen
<br /> 66'-76' 12130198 150 10-50 10.50 <050 '0.50 <5,0 no no no no no no no no 57.16 -31-52 no odor I no sheen
<br /> 0325199 <50 10.50 <0.50 <).50 <0.50 <0.50 10.50 '0.50 10,50 <5.6 <50 15.0 no no 55.07 -29.41 no comment
<br /> 0603199 150 <050 <0.50 <D.50 10.50 <0.50 <0 50 <0,50 10,50 <5-0 150 <50 5.6 10.50 54.61 28.95 no comment
<br /> 08/30199 '50 10,50 '0.50 '0.50 '0.50 10.50 10.50 <0.50 '0.50 <5.0 <50 <5-0 2.1 <),50 56.85 -31.19 nacomment
<br /> 12/10199 150 '0,50 <0.50 '0.50 '0.50 0.50 '0.50 '13.51) <0.50 <5,0 <50 '5.0 4.7 '0,50 56.68 -31-02 no comment
<br /> 03103/00150 '0.50 <0-50 '0.50 <0.50 0.62 '0.50 <0.50 10.50 15.0 150 15.0 5-0 '0,50 5561 -29.95 no odor/no sheen
<br /> 06!26/00 150 '0.50 <0,50 '0.50 '0.50 '0,50 '0.50 <0.5a <o.50 15.0 <50 9.4 4.0 '0.50 54.62 -28.96 no odoNno sheen
<br /> 0928!00 '50 '0.50 '0.50 '0.50 <0-50 15.0 no no no na no no na no 56,93 -31.27 no odorino sheen
<br /> 10@0100 ns ns ns ns ns ns ns ns ns ns ns ns ns ns nm 24.73 nm wellhead re-surveys
<br /> 12221)0 ns os ns no ns ns ns ns ns ns ns ns ns ns nm nm no odorino sheen
<br /> 0328101 73 6.2 17 1.5 7.5 c5,0 ns ns ns ns ns no ns ns 54.73 -30.00 no odorinosheen
<br /> 0627101 '50 '0.50 1.0 '0,50 '0.50 0-B7 <0.50 '0,50 '0.50 <5.0 150 <5.0 6.0 '0.50 55.99 -31,26 no odor/no sheen
<br /> 09/06101 '50 c0.50 '0.50 c0.50 '0.50 15.0 na no no no no no na na 56.03 -33,30 no odorino sheen
<br /> 12/03101 <50 '0.50 '0.50 '0.50 '0.50 150 no no no no no no na no 58,41 -33.68 no odorino sheen
<br /> 02/28/02 150 '0.50 <0-5o '0.50 '0.50 '5.0 no na no no na no no no 57.13 -32.40 no odorinosheen
<br /> 05/20/02 51 '0.50 1,9 '0.50 <050 0.92 '0,50 1050 '0.50 15.0 150 15.0 15 c0.50 5755 26.94 -30.61 no odor/no sheen
<br /> 0829/02 <50 '0.50 '0.50 '0,50 <0,50 15.0 no no no no na na no no 60.63 -33,69 noododnosheen
<br /> 12106!02 150 '0.50 '0.50 <0.50 <0.50 0.96 no no no no no na no no 60.74 -33.80 - no odarino sheen
<br /> 03105103 '50 <0.50 <0.50 '0.50 '0.50 15.0 no no no no no no no na 59.71 -32-77 no adorino sheen
<br /> 06103/03 2400 '0.50 '0.50 '0.50 '0.50 '0.50 <0.50 <0-50 c0.50 15,0 150 '5.0 4.7 '0.50 58.64 -31.70 no odorinosheen
<br /> 0828103 150 <0.50 <0.50 <0.50 '0.50 <50 na no no na na no no na 61-04 1 -34.10 no odor/nu sheen
<br /> MW-8 03131/98 100 c0.50 '0.50 '0.50 10,50 <5-0 no no no no no no no no 61.57 25.68 -35.83 reported as MW-3A
<br /> screened 06110798 80 0.9 <050 <0.50 <0,50 '5.0 no no no no no no na na 58,86 -33-18 reported as MW-3A
<br /> Interval 09/08/98 79 0.57 '0.50 'O,50 <0-50 '0.50 1D.50 <0-50 <0.50 15.0 150 15.0 no no 58,97 -33.29 slight odor Inosheen
<br /> 66'-76' 12/30/98 51 2.4 0.69 <050 <D.50 15.0__ na na no no na na no no 57.13 -31.45 slight odor lnosheen
<br /> 0325!99 150 '0.50 '0.50 <0-50 '0.50 '0.54 <0-51) '0,50 20, 50 <5D 150150 no no 55.09 -29.41 no comment
<br /> 06103M '50 '0.50 '0.50 '050 <0.50 '0.50 <050 '0.50 '0.50 <5A 150 <5.a <0.50 <0.50 54.42 -28.74 no Comment
<br /> 08130/99 '50 0.67 '0.50 '0.50 '0.50 '0.50 '0-50 '0.50 <0.50 <5,0 '50 <5-0 '0.50 '0.50 56.60 -30,92 no Comment
<br /> 12110199 330 '0,50 '0.50 '0.50 <0.50 <0.50 <0-50 <0.50 <0.50 5.1 150 110 0.51 '0.50 56.57 -30,89 nacomment
<br /> 03103100 150 '0,50 '0.50 '050 '0.50 <0,50 '0.50 '0.50 '0.50 150 150 15.0 '0.50 '0,50 55.28 -29.60 no odorino sheen
<br /> 0522/0 150 <)'50 '0,50 1050 '0.50 <0.50 '0.50 '0.50 10.50 150 150 12 063 '0,50 5437 -28.69 no odorino sheen
<br /> 0928100 <5p 10'50 <0.50 '0.50 '0,50 'S.0 na no no na no na no no 56,75 -31.07 no odorino sheen
<br /> 1221100 150 <0-50 '0.50 <0.50 <1)50 15,0 na na na no no no no no 55.92 -30.24 no odor/no sheen
<br /> 03/28101 150 '0.50 1.4 <0,50 1.1 15.0 no no no no no no no no 54.98 -29,30 no adorino sheen
<br /> OW7101 <50 '0.50 <D.5D '0.50 '0.50 10.50 <050 '0,50 '0,50 7-6 150 <5.0 c0.50 <0.50 56.57 30,89 no odor/no sheen
<br /> 09/06/01 <50 <D-50 '0.50 <0-50 '0.50 '5.0 na na no no na no no na 58.46 -32-78 no odorino sheen
<br /> 12/33/01 130 <0.50 '0.50 <D-5D '0.50 4.0 no no no no no no no no 59.02 -33-34 no odorino sheen
<br /> 0228102 85 c0.50 <0.50 <0.50 <0.50 <5-O na no no no no no no no 57.85 -32.17 no odorino sheen
<br /> 0520102 140 '0.50 <0-5o '0.50 '0.50 '0.50 '0.50 <0.50 <0.50 '5.0 150 15.0 '0.50 '0,50 56,11 27.64 -30.47 noadodnosheen
<br /> 0829102 <50 '0,50 '0.50 '0.50 <050 15.0 no no no no no no no no 61-14 -33.50 no odorino sheen
<br /> 12106102 160 8-9 13 3.4 21 '0.50 na no no no no no no no 61.33 -33,69 odorino sheen
<br /> 03107103 1100 0.90 4,9 '0.50 2.5 15.0 na no no no no no no no 60.77 -33.13 odorino sheen
<br /> 06!03103 260 '0.50 10,50 c0.50 <O50 <0.50 c0.50 <0,50 <0,50 <5.D 150 15,0 0..0 <0.50 59.01 -31,37 odor/no sheen
<br /> 082803 150 '0.50 '0.50 <050 '0.50 <5.0 no no na no no no no no 61-59 -33.95 no odorino sheen
<br /> 4r4ymr0G.41s
<br />{{ Project Na.1474.44 Page 4 of 8 HORIZON ENVIRONMENTAL INC.
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