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Attachment B <br /> Historical Groundwater Monitoring Results <br /> Former Tosco Bulk Terminal, 3505 Navy Drive,Stockton,California <br /> O Date of 1 o0, I- tote) De thio Casco OW <br /> WELL Sampling/ TPHG TPH-0 benzene toluene benzene xylenes MTBE RIPE ETRE TAME TBP melbanal ethanol GW Elevaiion(a) El...On.(b) <br /> ID Monilonn (491-) 149/-1 (A91L) (V9/L) (1091-) (V91L) (991L) (V91L) (V91L1 (V91L) (#OIL) (V91L) (99/L) feet eet cop (feet) Comments <br /> MW-1]B 05130103 64 340(r) NNOEO NNO.50 NNO50 NNO.W Be 36 ND,..W ND<D 50 230 - N0,100 16.08 2A -1368 <br /> 08113103 NN50 510(r) NNO.50 NNO,50 NNO 50 NNO.W 12 26 NNO,50 NNO.50 150 - NN100D (LW -3.96 <br /> interval 122/003 ND�50 190 B) NND.SD NNO.50 NNO.50 NNO.50 2] 24 NNO.50 KNO.50 190 - NN1000 604 364 <br /> 304002/10/04 NN50 110(r) NND.50 NNO.W NND.W NN10 2.5 37 NNOW NNO.50 240 NNW ND-5.O 4.66 326 <br /> 0520104 - - - - - - - - - - - - - 6.05 x.95 <br /> 08116104 29 410 NNO.50 ND 0.50 NNO.50 NNOW 2.0 18 - - 44 NNW NN5.0 6.32 .3.92 <br /> 112&0/ - - - - - - - - - - - - - 5.91 -3.51 <br /> 02117105 68 Beer) NNO.W NND.50 NNO.W NNIA 4.0 33 - - 210 NNSW ND-50 3.28 300 <br /> 05112N5 - - - - - - - - - - - - - 4.55 ADS <br /> Oeneem NN50 110 NNO.W NNO.W NNO.W NNIA 62 25 - - 17D NNWD NNW 6.01 4.61 <br /> 11,30/05 _ _ _ _ _ _ _ _ _ _ _ _ _ 6A2 4.02 <br /> 02/02/06 NN50 NN50 NNO.50 NNO.W NN0.5D NNtO 1.7 6.3 - - 44 NNID.000 - 3.85 -1.45 <br /> 05/30/06 _ _ _ _ _ _ 3.80 AAD <br /> Denim NNSO 72 NNO.50 NNO.W NNO.50 NN1.0 11 23 - - 140 NN10,000 NN250 5138 108 <br /> 11/18/011 _ _ _ _ _ _ 5.71 4.31 <br /> 0/026/01 NN50 ND 50 NNO.W NNO.50 NNO.50 NN1.0 5,1 It - - 59 NNW ND-250 5.08 -280 <br /> 0529/01 _ _ _ _ - _ _ _ _ _ _ _ _ 5.67 -3.27 <br /> 0821/07 ND-50 NN50 NNO.W NNO.50 NNO.W NNIA 1.1 1.6 - - 12 NN10.000 N0250 6.20 3.80 <br /> 11nOro7 _ _ _ _ _ _ _ _ _ _ _ _ _ 6.12 x.12 <br /> 03/19108 52 65 NNO.50 ND 0.50 NNO.50 NNID 11 26 NND,W NNO.50 180 NN10 NN250 4.57 -2.17 <br /> 0521/08 _ _ _ _ 5.53 3.13 <br /> OMN08 NNSO 180 NNO.50 NN0.50 NND.50 NN1.0 18 22 - - 160 NNW NN250 6.10 4.7D <br /> limen 53 a3 NNO.W NNO.W NND.50 NNI.D 21 23 - - 140 - - 5.75 -3.35 <br /> 02/09109 70 110 NNO.50 NNO.50 NNO.50 NN1.0 13 27 - - 180 NN100 NN250 5.30 -2.90 <br /> 05107109 78 LID NNO.W NND.50 NNO.50 NNIA 15 26 - - iW - - 5.08 1380 <br /> 0881109 NNW 87 NNO.W NNO.50 NNO.50 NN1.0 17 21 - - 140 ND400 ND250 6.20 2.1 4.18 <br /> 11112109 71 70 NNO.50 NNO.50 NNOW NN1.0 11 11 - - NN10 - - 6.07 3.97 <br /> 0203/10 ND-50 NN50 NND.5D NNO.W NO-0.50 NN1.0 13 17 - - 47 60000 NN250 4.83 3.53 <br /> DW W1O NN50 NN50 NND.5D NNO.50 NNO.W NN1.O 9.8 11 - - NN1D NN 100 - 4.80 3.70 <br /> 0880110 NNW 79 NND.50 NNO.50 NNO.W NN1.0 5 7 - - NN10 NN100 NN250 5.80 420 <br /> 12/03110 - _ _ _ _ _ _ _ _ _ - _ _ 5.37 327 <br /> 02/1&11 40 60 <0.50 �O.50 X0.50 <1.0 5.9 8.1 q0 X100 250 4.12 -202 <br /> mmisc BMWs N060 1W(0 NNO.W NN0.5D NND.5D NNO.50 NND.50 7.9 NND.50 NNO.50 39 - NO-100 10AO 2.5 -2.9D <br /> 0911-03 NNSD 1W(6 NNO.W NN0.50 NNO.50 NNO.50 NNO.50 10 NNO.50 NNO.50 28 - NN1000 e]5 4.25 <br /> ivtarval 122203 NO-50 249(0 NNO.50 NOA50 NNO.W NNO.50 NNO.W 12 NNO.50 NNO.50 27 - NNIWD 8.10 -3.60 <br /> n-Tr 02/10104 NN50 83b) 1.1 D.17(u) NNO.50 NNie 0.7 10 NNO.50 NNO.50 8.4 NNW NN5B 4.90 3.40 <br /> O520ro4 - - - - - - - - - - - - - s.95 a.4s <br /> 06/1&04 ND20 BW 1.0 NNO.50 NNOW NDa0.50 - 7.0 - - 16 NN50 5.6 flee <.38 <br /> 1129ID4 - - - - - - - - - - - - - 6.17 3.61 <br /> 0-17105 S1O) W(D NNO.50 NNO.50 NNO.W NNIB - 7.3 - - 41 NNWO NN50 4.15 -1.65 <br /> 05112/05 _ _ _ _ - _ _ _ _ _ _ _ _ 5.00 3.W <br /> 083005 NNSO 50 NNOW NND.50 NND.50 NN1.0 - 4.9 - - 39 - NNW 6.35 4.05 <br /> 1180105 - - - - - - - - - - - - - 6.22 -322 <br /> 02/0206 NNW NNW 031 NNO.50 NO-0.50 NN1.0 - 3.5 - - 26 NN10.DW NN100 4.15 -185 <br /> 0580/06 _ _ - _ _ _ _ _ _ - _ _ _ 4.71 3.21 <br /> 0081/08 NNW 110 D.57 NNO.50 NNO.50 NN1.0 - 4.1 - - 28 NNIOOW N0250 6.17 387 <br /> 11/16108 _ _ _ _ _ _ _ _ _ _ _ _ _ 6.11 x.61 <br /> 0226/07 NNW 53 NNO.50 NNO.W NNO.W NNID 4A - - 26 NN50 NN25D 5.47 3.97 <br /> 0529077 - - - - - - - - - - - - - 6.03 4.53 <br /> 0821101 NNW 97 NNO.W NO-0.50 NNO.W NN1.0 - 19 - - 25 NN10,W ND2W 6.50 4.00 <br /> 1180101 _ _ - _ _ _ _ _ _ _ _ _ - 6.50 4.00 <br /> 03119100 NNW NNW ND-50 NN50 NN50 NNID 1.7 8.0 NNOeD NNO.50 54 NN14 NN250 537 -2.13 <br /> 0521108 - - - - - - - - - - - - - 5.89 4.38 <br /> 0828100 NNSD NNW NN50 NNW NNW NN10 - 6.6 - - 58 NNID N3250 13.34 4.84 <br /> 11/06108 NNW NN5D NNSO NNN ND-50 NN1.0 12 6.7 - - 38 - - 6.23 4.73 <br /> 0209/09 85 64 NNW NNW NNW NNID 2.3 0.6 - - 68 NN100 NDQW 5.52 4.02 <br /> 05107/W /0N50 51 NNW NN50 NNW NNID 4.5 1D - - 54 - - 5.50 4.0 <br /> 0931109 NN50 NNW ND-50 NN50 NN50 ND-1.0 3.6 9.8 - - 55 NNIN NN250 5.93 216 -313 <br /> 11/1209 NNW NN50 NNW NN50 NN50 NNIB 4.7 8.5 - - NNID - - 5.70 -3.54 <br /> 020-10 I NN50 I NNW I ND-50 NN50 NNSO NNIB 6.0 1 8.9 80 NW NN250 1 4.70 -2.54 <br /> ticnnotorinT Tmev wd BunwMIOD13Sixx %Trt a OII1Ta,Ies1m5ane4PP9C1011ze Page 17 of 18 <br />