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TABLE 2 <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 nH D Beniene Toluene r Dthylbenzene Total Xylenes, MTBE DIPS(pg L} FTDC 1AME TDA Me handl $tl 2 01 <br /> Well - Elevation Total Well -. Groundwater ., F3evation ){ <br /> Sample Date <br /> Number (feet above Depth (feet below. (f ei abo'e. <br /> MSL) (feat below TOC) MSL) �PAMe ^_ EPA Method826bb - <br /> et bel Owd 8015M ; <br /> 61W-1 08/11/87 2.62 25 10.38 7.76 ND<1000 310 24 0.99 --- 7.4 -- -- -- -- -- <br /> MW-1 02/02/88 2.62 25 --- -- <br /> _-- 340 64 ND<0.50 I.I --- <br /> --- -- -- --- <br /> MW-1 03/08/88 2.62 25 10.79 -8.17 -- -- -- -- �- -- _ <br /> MW-1 04/14/88 2.62 25 11.13 -S.SI --- --- -- <br /> Mµ'-1 06/01/88 2.62 25 10,35 <br /> _7.73 -__ 240 3.5 3.5 ND<0.50 <br /> MW-I 02/1989 2.62 25 -- --- -- 130 ND<O 50 ND<0.50 <br /> MW-I 09/18/92 2.62 25 11.91 -9.29 ND<50 89 7.9 ND - <br /> MW-1 12/11/92 2.62 25 11.49 <br /> MW-1 03/01/93 2.62 25 8.76 jr <br /> -6.14 ND<50 97 <br /> MW-1 06/04/93 2.62 25 9.72 -7.10 ND<50 66 27 ND<0.50 - <br /> I,IW-1 09/28/93 2.62 25 11.29 1 -8.67 1 ND<50 ND<50 ND<0.50 ND<0.50 <br /> MW-1 12/02/93 2.62 25 11.29 -8.67 ND<50 1 760 -- <br /> MW-1 03/04/94 2.62 25 10.06 -7.4'1 ND<50 57 --- <br /> MW-1 06/03/94 2.62 -- <br /> MW-1 09/28/94 2.62 25 11.22 -8.60 NIK50 ND<50 2.9 ND<0.50 ND<0.50 NDm.50 -- - -- --- --- <br /> MW-1 12/02/94 2.62 25 10.73 1 -8.11 ND<50 ND<50 I ND<U.50 I ND<0.50 -- <br /> MW-1 03/31/95 2.62 25 8.15 -5.53 ND<50 ND<50 1.5 ND<0.50 ""- <br /> MW-1 06/02/95 2.62 25 9.73 -7.11 ND<50 ND<50 <br /> MW-1 11/01/95 2.62 25 11.50 -8.88 ND<50 250 1.2 ND<L0 ND<I.o NDQ.O 800 -- --- --- <br /> MW-1 02/14/96 2.62 25 10.21 -7.59 ND<50 320 <br /> MW-1 05/14/96 2.62 25 946 <br /> MW-1 09/10/96 2.62 25 9.96 -7J4 ND<50 90 ND�.50 ND<LO NDQ.O ND<1.0 650 -- - - <br /> -- <br /> MW-I 11/21/96 2.6Z 10.63 -8.01 ND<I00 790 ND<0.50 ND<l.0 ND<LO ND<1.0 1100 --- <br /> 2, --- -- -- <br /> MW-1 04/16/97 2.62 25 8.80 -6.18 ND<I00 1300 ND<0.50 ND<1.0 ND<1.0 ND<l0 1700 -- - -- - -- <br /> MW-1 09/06/97 2-62 25 10.20 -7.58 --- --- <br /> MW-1 <br /> MW-1 08/07/97 2.62 25 -- -- ND<100 NDQ50 ND<0.50 ND<1.0 ND<1.0 ND<1.0 --- <br /> MW-1 01/23/98 2.62 25 8.37 -5.75 ND<200 1,300 ND<0.50 ND<10 ND<1.0 ND<1.0 1100 -- - --- -- -- --- <br /> MW-1 07/10/98 2.62 25 8.78 -6.16 220 100 ND<0.50 ND<I.o 2.1 ND<I.o <br /> MW-1 09/17/98 2.62 25 997 -7.35 ND<I00 6,800 ND<2.S ND<5.0 NDc5.0 ND<5.0 8100 -- -- ---MW-1 12/30/98 2.62 25 10.00 -7.38 ND<S00 2,900 ND<L0 ND<1.0 NDQ.O ND<1.0 2700/3000 i --- <br /> MW- <br /> -- -- --- -- <br /> MW-1 02/16/99 2.62 25 9.25 -6.63 ND<50 2,500 ND<LO ND<1.0 ND<1.0 ND<1.0 3100 -- -- -- '- -- <br /> MW-1 06/30/99 2.62 25 9.73 -7 11 '02 <br /> 230 ND<1 0 ND<1.0 ND<1.0 ND<1.0 2900 --- - -- -- -- <br /> MW-1 08127/99 2.62 25 10.41 -7.79 NDQ00 ND<50 ND<L0 ND<I O ND<I O ND<1.0 2100 -- -- -- "-- <br /> NIW-1 11/23/99 262 25 10.69 -8.07 ND<350 ND000 ND,,Z.3 NI 3 ND<G 3 ND<0.6 2000 -- - -- - --- <br /> MW-1 02/18/00 2.62 25 9.61 -6.99 ND<390 ND<50 ND<0.50 NE 0 ND<0.50 2600 -- -- - -- -- -- <br /> MW-1 04/26/00 2.62 25 10.12 -7.50 ND<47 880 ND<0.50 ND<0.50 ND<0.50 ND<0JO 3600 -- - --- --- <br /> MW-1 <br /> -MW-1 08/25/00 2.62 25 10.53 -7.91 ND<47 600 ND<0.50 ND<0.50 ND<0.50 ND�.50 1500 NDQO NDQO NDQO -- <br /> - 250 <br /> NIW-1 09/25/00(m) 2.62 25 10.73 -8.11 --- -- <br /> N1,W-1 11/15/00 2.62 25 10.35 -773 ND<47 410 ND<0.50 I.8 0.58 2.31 1800 -- - <br /> MW-1 01/17/01 2.62 25 10.25 -7.63 ND<50 990 ND<0.50 ND<0.50 ND<0.50 ND<0.50 <br /> bIW-1 06/05/01 262 25 9.94 -7 32 -- --- 2700 ND<L0 ND<I.0 NU<I 0 240 <br /> Page 3 of 33 ATC Pro1�d No 075 7111 A 08 98 <br />