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TABLES <br /> SUMMARY OF HISTORICAL GROUNDWATER GAUGING AND LABORATORY ANALYTICAL DATA <br /> Former Tosco Bulk Terminal No.10013 <br /> 3505 Navy Drive,Stockton,CA <br /> 'Approximate <br /> TOC Constructed Depth to Groundwater T1111-D, (I ) Benzene Toluene Ethyylbenzene ,Tota(Yylenes- MTBE DSPE ETBF TAIIE IBA Methanol Ethanol <br /> Well Elevation - Total Well Gouhdwater Elevation "('PH-G (PP,n) <br /> Semple Date �(PBS) (PYIL) Wil-)) { (pl y) (Fr�L) (µE/L).. (PF2)- (P�)� (PBL) (4L) <br /> Number (feet above -.Depth (feet below..- (feet above k- ' <br /> ... , <br /> MSL) (feet below,, TOC) MSL) <br /> TOC)- EPA Method 8015M' EPA Method 8266B r <br /> MW-16 05/21/08 2.40 23 5.47 -307 --- - --- -- --- -- --- --- --- --- _" --- <br /> MW-16 08/28/08 2.40 23 6.13 -3.73 60 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 --- 16 --- "-- 170 ND<IO " ND<250 <br /> MW-16 11/06/08 240 23 5.72 -3.32 89 ND<50 ND<0.50 ND,.50 ND<0.50 ND<I.0 12 16 --- --- 100 - -- <br /> MW-16 02/09/09 2.40 23 4.95 -2.55 50 50 ND<0.50 ND<O.50 ND<0.50 ND<1.0 8 8 -- -- ND<10 ND<I00 ND<250 <br /> MW-16 05/07/09 2.40 23 4.61 -2.21 92 ND<50 ND<0.50 ND-c'0.50 ND<0.50 ND<1.0 17 16 - - --- too - -- <br /> MW-16 08/31/09 2.08 23 5.80 -3.72 78 ND<50 ND10.50 ND<0.50 ND<0.50 ND<1.0 13 13 --- --- 57 ND<I00 ND<250 <br /> MW-16 11/12/09 2.08 23 5.15 -3.07 ND<50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 Il 9 --- -- ND<10 -- -- <br /> MW-16 02/03/10 2.08 23 4.20 -2.12 ND<50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 11 9 --- -- 38 1,600 ND<50 <br /> MW-16 05/06/10 2.08 23 4.32 -2.24 51 ND<50 ND<.50 ND<0.50 ND<0.50 ND<1.0 9 9 -- --- 52 ND<I00 -- <br /> MW-16 08/30/10 2.08 23 574 -3.66 140 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 9 9 -- -- 39 ND<I00 ND<250 <br /> MW-16 12/03/10 2.08 23 5.20 -3.12 -- --- - -- -- - -- - -- --- --- <br /> MW-16 02/18/11 2.08 23 4.01 -1.93 <50 <50 <0.50 <0.50 <0.50 <1.0 9 7 --- --- 31 <100 <50 <br /> MW-16 05/11/11 2.08 23 4.34 -2.26 67 - - - - - 10 -- --- --- 23 - --- <br /> MW-16 09/08/11 2.08 23 5.52 -3.44 <50 30 <0.50 <0.50 <0.50 <1.0 7.80 7.1 --- --- 46 <100 <50 <br /> MW-16 12/07/11 2.08 23 5.64 -3.56 77' -- -- - - - 9.4 - - - 60 - - <br /> MW-16 03/05/12 2.08 23 5.11 -3.03 790 <50 <0.50 <0.50 <0.50 Q.0 10 8.2 --- --- <10 <I00 <50 <br /> MW-178 05130/03 2.40 40 16.08 -13.68 340(r) 64 ND<0.50 ND<,50 ND<0.50 ND<0.50 1 36 ND<0.50 ND<0.50 230 --- ND<I00 <br /> MW-178 08/13/03 2.40 40 6.36 -3.96 510(r) ND<50 ND-cO.50 NDm.50 ND<0.50 ND<0.50 1 26 ND<0.50 ND<0.50 150 --- ND<I000 <br /> MW-178 12/22/03 2.40 40 6.04 -3.64 190(r) ND<50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 2 24 ND<0.50 ND<0.50 190 - ND<I000 <br /> MW-17B 02/10/04 2.40 40 4.66 -2.26 110(r) ND<50 ND<.50 ND<0.50 ND<0.50 ND<I.0 3 37 ND<0.50 ND<O 50 240 ND<50 ND<5.0 <br /> MW-17B 05/20/04 2.40 40 6.05 -3.65 -- -- - - - - - -- - <br /> MW-17B 08/16/04 2.40 40 6.32 -3.92 470 29 ND<0.50 ND<0.50 ND<0.50 ND<0.50 2 18 - --- 44 ND<50 ND<5.0 <br /> MW-17B 11/29/04 2.40 40 5.91 -3.51 -- -- - - - --- - - --- - -- -- <br /> MW-17B 02/17/05 2.40 40 3.28 -0.88 68(r) 68 NDm.50 ND<0.50 ND<0.50 ND<I.0 4 33 --- --- 210 ND<500 ND<50 <br /> MW-17B 05/12/05 2.40 40 4.35 -1.95 - -- - - - - -- - -- -- <br /> MW-17B 08/30/05 2.40 40 6.01 -3.61 110 ND<50 ND�.50 ND�.50 ND<0.50 ND<1.0 170 ND<500 ND<50 <br /> MW-17B 11!30/05 2.40 40 6.42 -4.02 -- --- -- - - - " - --- - -- -- -- <br /> MW-17B 02202/06 2.40 40 3.85 -1.45 ND<50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 2 6 --- --- 44 ND<10,000 --- <br /> MW-1713 05/30/06 2.40 40 3.80 -1.40 - --- - -- -- - '- -- --- --- -- -- <br /> MW-17B 08/31/06 2.40 40 5.48 -3.08 72 ND<50 ND<0.50 NDm.50 ND<0.50 ND<1.0 11 23 - --- 140 ND<I0,000 ND<50 <br /> MW-17B 11/16/06 2.40 40 5.71 -3.31 - -- - - - - -- - -- --- -- -- -- <br /> MW-17B 02/26/07 2.40 40 5.08 -2.68 ND<50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<1.0 5 11 --- --- 59 ND<50 ND<50 <br /> MW-17B 05/29/07 2.40 .40 5.67 -3.27 -- --- - - - - '- - - -- - - -- <br /> MW-17B 08/27/07 2.40 40 6.20 -3.80 ND<50 ND<50 ND<0.50.,,. ND<0.50„ "ND<0.50 ND<1.0 1 2 -- --- 12 ND<10,000 ND<50 <br /> MW-17B 11/30/07 2.40 40 6.12 -3.72 --- -- - - - -' -- - - -- --- - -- <br /> MW-17B 03/19/08 2.40 40 4.57 -2.17 65 52 ND<0.50 N13<0.50 ND<0.50 ND<1.0 I1 26 ND<0.50 ND<o.50 1,80 ND<10 ND<250 <br /> MW-17B 05/21/08 2.40 40 5.53 -3.13 --- -- - - - - -- -- <br /> MW-17B 08/28/08 2.40 40 6.10 -3.70 190 ND<50 <0.50 ND<0.50 ND<1.0 18 22 --- - 160 ND<10 ND<50 <br /> MW-17B 11/06/08 2.40 40 5.75 -3.35 83 53 ND<0.50 ND<0.50 ND<0.50 ND<1.0 21 1 23 --- - 140 --- --- <br /> MW-17B 02/09/09 2.40 40 5.30 -2.90 110 1 78 ND<0.50 ND<0.50 ND<0.50 ND<1.0 13 27 --- - 180 N131I00 ND<50 <br /> Page 27 of 33 ATC Proieet Na 075 75118 OR88 <br />