ARCHIVED REPORTS_FIRST QUARTER 2011 STATUS SUMMARY REPORT

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Attachment Historical Groundwater Monitoring Results Former Tosco Bulk Terminal,3505 Navy Drive,Stockton,California O Datem ethyl-- tonal De m1c Casco GW WELL SamPlin91 TPHG TPH-D benzene toluene benzene xylenes MTBE OIPE ETBE TAME TBA melM1anal ethanol GW Elevation p) Elevation lbl ID Moninonit (P91L) (491-) (4gIL) (AWL) (µ9IL) (POIL) (V91L) (491-) (V91L) (4gIL) (V91L) (µ9,1L) I491L) bel eenmsl) teat) Comn,entz Mw-11 1121/94 ND<50 ND 50 ND<050 ND<0.50 ND<0.50 NO<0.50 - - - - - - _ - 809 artan 12@94(0) 12.09 .4,00 interred OS9S9] ND<So NOe100 14 X0.50 14 e1.0 NDe1A ND40 93 - - _ _ - - 1150 -341 10-25 012398 60 360 NO 0.50 ND<1.0 MA 1.0 N04.0 53 - _ - - - - 8.83 -1.74 0]/1098 ND60 300 ND<050 14 e1.0 ND4.0 NDe1.0 ND<10 - - _ - - - 10.04 -1.95 09/1]90 ND-2.50 320 ND<2.5 ND6.0 ND-5.0 N S6o 71 - - - - - _ 11.66 3.57 1220/98 350 80 ND�1.0 NDQ.O ND to ND<1.0 330 - - - - _ _ 11.16 3.07 02/1699 140250 SO ND6.0 NINSO N eSo ND<5,0 25 - - - - _ - 1060 2.51 0850/99 270 ND-100 ND�1.0 NNI.0 t 1.O ND to 280 - - _ _ _ _ 1022 -283 082]99 ND60 ND200 11 e1.D NDe1.0 NDe1.0 N0`1.0 340 _ _ _ _ _ _ 11.74 3.85 112399 14 200 NN350 N0 0.3 14 e03 ND�03 1.8 230 - _ - _ _ _ 1200 391 02/1890 ND<50 ND<390 NNOSO ND<0.50 ND<OSO ND<0.50 140 - _ - - _ _ 1025 -2,16 042690 18D ND47 NNOSO NNOSO NO<0.50 1.4 250 _ - - _ - _ 10.,43 236 082X00 120 ND4] NND.50 14 X0.50 NND.50 0.89 350 NNIO NN10 ND<10 - - - 11.87 378 092590(m) - - _ _ _ _ _ _ 28 _ _ 11.98 3.89 11/15100 190 ND4] 1.7 9.4 3.0 11.6 180 1160 3.51 01/1]91 210 14060 NDe0.50 ND�O50 NDe050 NDe0.50 339 - _ _ _ _ _ 11,87 3.58 069591 11.42 J33 115! 3AS noteamged 0994101 NDeSO 140 NDNSO NNOSO ND<O,SO 0.75 450 NN10 ND4O NDk10 NO<1000 NDe50O N0,15000 1207 -3.95 no oheenbo otlor 1-1191 - _ _ _ _ _ _ _ _ 11.70 3.61 no sheeNno aOar 022192 ND400 ND60 140,41.0 NO1.0 ND-1.0 N04.0 410 NOLO NN1.0 2A N040 ND400 ND�10 10.57 -2.48 no shooWno odor 0522102 _ _ _ _ _ _ _ _ _ 11.25 9.72 -1.53 0821/02 ND4000(g) 140 ND�10 NNIO NDOO ND4O 580 ND40 ND40 ND40 ND2000 NM100 NOg0000 12.03 - 31 11/1492 - - - _ _ _ _ _ _ 1200 228 @20,103 NDe50 240x) NDA.8 NDs0.0 40<0.8 NDe0.8 no NDa0.8 N 0.O 2.1 30 1404000 NN170 10.69 4.97 OS/30/OJ 11.35 -1.63 08/1393 ND<50 420(r) NDe0.50 NNOSO ND,40.50 NNUO 110 NNO.50 NDoO.50 0.6 260 NDe1000 NNl 140 11.05 3,13 1-21103 11.97 d25 01/10/, ND60 71(8 ND-0.50 NDeO50 NDe050 ND�lo 3.3 NDd.O N)<OSO 140,40,50 310 NM50 ND6.0 10.97 .1,25 o52D94 - _ - 156 .1.g4 08/18/04 _ _ _ _ _ - 14 X0.50 - - ND 0.50 52D - _ 1255 2,83 112994 _ _ _ _ _ _ _ 11.94 2.n 02/17M ND<5D B](r) NO-0.50 ND-0.50 ND-D.50 1.2 O.n - _ ND<OSO 350 _ _ Mat 4.59 0X12/05 1024 -OM 08130,105 - _ - - - - 0.95 _ - ND-0.50 220 - _ 11.85 2.13 119D105 _ _ _ _ _ _ _ _ _ _ 1265 8.93 0214906 110 57 ND OSO N0�0.50 14 e030 1 D 1.O 0.0 - _ _ _ _ _ 10,14 a52 10.07 4.35 0861/08 - _ _ _ _ - 0.95 NDW50 a8 _ _ 11.42 -1.70 11.52 AM O2 7 ND6O N060 NO-0.50 0.56 NDA.SO NDe10 ND<0.50 - - ND-D.50 150 _ _ 1135 -163 11.70 2., D82797 O.n - - N>OSO 12D - - 1221 -249 12.12 .2.60 OW1998 ND-50 82 41k0.50 ND-0.50 NND.50 ND�10 0.85 ND<OSO ND-0.50 ND-0.50 110 ND40 NDe250 10.80 -1.08 052198 _ _ _ _ _ _ _ _ 11.51 -129 082890 - - - - - - ON - _ NNOSO 110 - _ 11.53 2.11 - - 11.02 8.10 02/11999 ND-50 79 NDeO.50 NNOSO NDe0.50 MD 1.0 0.76 - _ NNO.50 140 - - 1132 -1.50 059799 089198 13 - - NNOSO 120 _ - 11.83 9.64 219 11112/09 - _ _ _ _ _ 1.3 - - NND.50 ND�10 - - 11.52 -1.80 02/03110 ND60 81 ND�0.50 ND6.SD ND<0.50 ND<16 0.92 - - NM0.50 120 - _ 10.76 -1,12 0596110 _ 10.69 -105 0860110 ND60 - - _ _ - 1 - - ND,,O.50 34 - - 11.67 2.03 - _ 1148 -184 OVIWII 1 40 60 1 ,4050 ,4050 ,4o 50 a0 1 n]3 1 _ _ _ 32 1056 094 11ConxoPM1dps\iemmn�nJ 9uk PW6\100139bcppnlTYJeT2D11\iMe¢165 nEApp B C 1011 ds .,rf 1 ft