ARCHIVED REPORTS_FIRST QUARTER 2012 STATUS SUMMARY REPORT

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TABLE3 SUMMARY OF HISTORICAL GROUNDWATER GAUGING AND LABORATORY ANALYTICAL DATA Former Tosco Bulk Terminal No.10013 3505 Navy Drive,Stockton,CA Approximnte TOC Conavucted Deprh to Groundwater TPH-D Benzene Toluene Ethylbe�ene Total Xylenes MTBE RIPE OL) ETRE TAME71, ethanol Et anoTPH-G(Vt✓L)Well Elevation TotalWell Groundwater Elo,,on. (PSti) (VSti) (V8/L) (VB/1-) (P�) (n0-) (P8/L) (P°./L) nt/L) (P8ti) Number Semple Date (feet above Depth (feet below (feet above MSL) (feet be]. TOC) MSL) EPAMethod 8015M BPA Method 82606 TOC MW-21B I^_/22/03 263 50 1025 d.62 I80(r) ND<50 ND050 ND<0.50 NDQ.50 ND0.50 ND10.50 10 ND10.50 ND0.S0 64 - ND11000 MW-216 02110/04 ?63 50 604 -3.41 93(r) ND<50 0.60([7 0.95([) 0,49(tsJ 20(t) ND10.50(Q ?8(B NDm.50(q ND030(t) 7.9(t) ND60 NDG5.0 17 MW-218 05/20/04263 50 620 -3.57 260 22 ND<D.$ ND 10.5 ND 10.5 ND<OS NIX(1.50 - - - MW-216 081/6/04 2.63 50 69] -4.34 310 21 ND 10.5 ND<OS ND 10.5 ND 10.5 ND10.SD 110 - - 51 ND60 NI)60 MW-218 11/29/04 263 50 649 3.66 220 20(u) ND 10.5 ND<0.5 ND<0.5 ND<OS ND10.50 90 NDID.SD ND10.50 20 - - MW-218 02117/05 2.63 50 401 -1.38 57(r) ND<O N13<0.5 ND<0.5 ND<0.5 ND<1.0 ND10.50 2.6 ND0.50 NDQ.SO NIXS.O ND60D NDc50 MW-218 05/12/05 263 50 460 -197 92 33t ND<O5 ND<0.5 ND<0.5 NO<1.0 ND<0.50 3] ND0.50 NDQ.50 8 - - MW-218 OB/30N5 2.53 50 650 -387 47 N1K50 ND10.5 ND<0.5 ND<0.5 ND<1.0 ND0.S0 82 NIX0.50 ND0.50 56 ND1500 ND<50 MW-216 11130/05 253 50 703 440 N1X50 ND<50 ND0.50 ND<0.50 NDQ.50 ND<1.0 ND10.50 9.5 ND1050 ND0.50 54 -- - MW-216 01/02/06 263 50 440 -1.77 NIX50 ND<50 ND10.50 ND<0.50 ND10.SO ND<LO ND<0 SO 3.1 ND0.S0 ND<0.50 25 ND MW-218 05/30/06 2.63 50 46D -I 77 ND6D 68 ND<0.50 ND<0.50 ND0.50 ND<ID ND0.50 82 ND10.50 ND0.50 73 - ND<I00 MW-2IB 06131/06 2.63 50 606 -343 ND<50 ND60 N1)<0.50 ND0.50 NIXO.SD ND<L0 ND0.50 6.5 NDO.SD ND0.50 51 ND110,000 NDQ50 MW-216 11/16/06 2.63 50 6.36 -3.75 210 ND<50 NI)Q.50 ND0.50 ND10.50 ND<L0 ND<0.50 4.1 ND<O.SO NDO.SD O - - MW-218 01126/0] 2.63 50 5.61 -2.98 ND<50 ND<50 ND10.50 NDN_50 NIX0.50 ND<LO ND<0.50 4.4 ND<r50 NDm.50 ND6.0 ND60 NDQSO MW-218 0529/0] 263 50 620 -357 NDG50 ND<50 ND<0.50 ND<0.50 ND<0.50 N1XI.0 ND0.50 56 ND050 NI)m.50 - MW-21B 08/27/07 2.63 50 659 -3.96 ND<50 ND<SO ND0.50 ND0.50 ND0.50 ND<10 ND<0.50 9.9 NDQ.50 ND<0.50 82 ND MW-216 11(30/W 2.63 50 6.64 -4.01 ]1 N060 NDQ.50 ND0.50 ND<0.50 1 ND0.50 100 ND10.50 NIMI.$D 72 - NDQ50 MW-216 03/19/08 2.63 50 5.30 -2.67 ND<50 N1XSD ND<0.50 ND<r50 ND<030 NIX1. NDQ.SD 9.0 N1XO.SD ND0.50 45 - NDQ50 Mµ'-218 05/21/08 2.63 50 5.87 -324 NIX50 ND<SD ND0.so ND0.50 7510. 00 ND110 07 8.1 NIX0.50 ND0.50 62 - - MW-216 0626/08 2.61 50 6.62 -399 NIX50 ND<50 ND<0.50 ND<050 ND<0.50 ND<IO 07 8] ND<0.50 ND0.50 71 ND<ID NDQ50 MW-21g 11/06/08 263 50 620 -3.5] ND150 ND<50 NDQ.50 ND<n 5D ND 30 ND<L0 10 9.1 ND<0.50 NDQ.50 ]0 -- - MW-2IB 02109/09 2.53 50 5.58 -2.95 ND6D ND<SO NDQ.50 ND0.50 ND<O.SD ND<Lp 13 8.2 ND<D.50 NDQ.SO 70 ND<I00 NDQ50 MW-216 05/0]/09 263 50 5.60 x.97 59 ND<50 ND<0.50 ND0.50 NIXO.SD ND<IO 19 96 ND10.50 ND<0.50 63 - - MW-216 08/31/09 2.30 50 6.49 -0.19 NDG50 NDbO ND0.S0 NDO.SD NDQ.50 NIXIO IS 8.8 ND<0.50 NDQ.SD 66 ND<I00 NDQ50 MW-216 11/12/09 230 50 6.04 -374 ND60 NIXSD N1X0.50 ND0.50 ND10.50 NDq 0 1.4 64 ND<0.50 ND<0.50 ND<10 i< - MW-216 02/03/10 230 50 4]6 -246 ND<50 ND<50 ND<0.50 MI0.50 NIX050 NIX1.0 ?0 8.2 ND10.50 Nl)0.5D 53 NIX100 NDGt50 MW-21B 05/06/10 230 50 4.90 -260 ND<50 NIX50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 3.1 B.0 ND<050 ND0.50 48 NIX100 - MW-218 08/30/10 230 50 625 -}g5 D<S 79 ND<S0 ND10.50 ND0.50 ND 30 ND<L0 26 ].] ND<0.50 ND0.50 37 ND<100 NDQ50 Mµr_218 12/03/10 230 50 560 -310 410 ND ND<0.50 N1 ,50 ND<0.50 ND<IO 23 6.1 ND10.50 NDQ.50 ND110 - - Mµ'-218 02/16/11 230 50 465 -235 120 <50 0.50 0.50 0.50 <Lp 32 ].I 0.50 0.50 32 1100 QSO M W-218 OS/1 111 l ?30 50 550 -3.20 58 6a 10.50 <050 0.50 <I.0 - MW-218 09/07/11 2.30 So 609 -379 60 26 0.50 10.50 0.50 11.0 3.0 4.6 10.50 10.50 <ID 1100 QSD MW_21B 12/06/11 2.30 50 6.17 -387 60 150 0.50 0.50 0.50 <t.0 2.4 4.1 0.50 10.50 <IO - Q50 MW-216 03/05/12 ?30 50 567 -3.37 150 6o 0.5() <0.50 0.50 110 15 1.8 0.50 1050 110 1100 Q50 MW-22C 12/30103 251 715 5.88 -3.37 140(r) ND<SD ND0.50 NDQ.SD ND0.50 1 NDO.$D N1X050 ND<D.50 NI)0.50 ND<ID - N1X100D MW-22C 02/10/04 ?51 ]LS 4.98 -2.47 ]3(r) ND<SD 0.40(u) 1 ND<0.50 099(.5 ND0.50 0.23(u) ND<050 NDQ.50 ND<50 ND6D ND<S.D MW-22C 05/20/04 ?51 71.5 6.36 -3 87 240 20 ND10.50 N1]0.50 ND0.50 ND0.50 ND<0.50 - - MW-22C 08/16/04 2.51 71.5 7.02 451 290 NIX20 ND10.S0 ND<0.50 ND<0.50 ND .SD ND<0.50 3 ND<050 NDQ.SD NDG5.0 ND60 ND<50 MW-22C 1129/04 ?51 7L5 6.31 -3.80 210 ND o ND<D.50 0.6(a) N1X0.50 NDQ_50 ND<0.50 40(u) ND0.5D NDQ.50 - MW-22C Il/290004dup 2.51 ]L5 - 280 NDQO ND0.50 0.6(u) ND0.50 NIX0.50 NDQ.50 4.0(u) N1X0.$D MX0.50 NDc5.0 - Pap 31 of33 ATOP feat No.075]5118.0888