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TABLE 2 Historical Groundwater Analytical Results Compass Group USA, Inc 1500 Shaw Road Facility Stockton, California Ethyl- 8260 OXYGENATES Benzene Toluene benzene Xylenes TPH-G TBA MTBE DIPS ETBE I TAME 1,2 DCA EDB Well Date (pg/L) (pg/L) (µg/L) (pg/L) (pg/L) W/O (pg/L) (pg/L) (pg/L) (pg/L) (pglL) (pg/L) CANICL 100 150 00 700 00 1750 00 NE NE 1300 NE NE NE 050 005 MW-1 06/03/93 11,000 1,500 08 1,400 38 000 - -- -- -- -- -- -- 09/20/93 355 75 4 5 135 9,300 -- -- -- -- -- -- 01/27/94 3,100 32 23 11 11,000 -- -- -- -- -- -- 04/21/94 2,500 23 ND 19 7,700 --- - -- --- -- -- 08/01/94 510 23 6 8 39 5 000 --- --- -- -- -- -- 12/13/94 68 8 ND 3 975 --- --- --- - -- - 03/29/95 6 6 ND 2 196 --- --- --- --- - -- - 08/31/95 06 1 ND ND ND - -- -- - -- -- 12/19/95 ND 09 ND ND ND --- --- --- --- --- --- 04105/96 -- -- -- --- --- --- --- --- 06/27/96 --- - -- --- --- --- --- 07/25/96 ND ND ND ND ND --- --- --- --- --- --- t2/03/66 ND ND ND ND ND - -- — --- I --- --- --- 03/27/97 --- -- - - 07/03/97 --- - -- -- 10/10/97 ND ND ND ND ND <20 <50 <5 0 <5 0 <5 0 --- 01/28/98 <03 <03 <03 <03 <50 <20 <50 <5 0 <5 0 <5 0 -- 06/05/98 <03 <03 <03 <03 <50 1 <20 <50 <50 <50 <50 -- 06/08/99 61 22 37 21 110 <5 <1 <1 <1 <1 — 03/29/00 <05 <05 <05 <05 <50 --- --- -- --- __ 09122/00 <05 <05 1 <05 <05 <50 <50 <50 <50 1 <50 <5 0 <50 <50 12/12/00 41 81 64 44 330 <5 0 <5 0 <1 0 <1 0 <1 0 <1 0 <10 03/07/01 <05 <05 <05 <05 1 <50 <50 <10 <10 <10 <10 <10 <10 05/10/01 10 62 1 8 13 100 <50 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 08/15/01 <05 <05 <05 <05 <50 <50 <10 <10 <10 <10 <10 <10 11/08/01 <05 <05 <05 <05 <50 <50 <10 <10 <10 <10 <10 <10 02/07/02 <05 <05 <05 <05 <50 <50 <10 <10 <10 <10 <10 <10 05/09/02 <05 <05 <05 <05 <50 <5 0 <05 <05 1 <05 1 <05 <05 <05 12/30/02 <05 <05 <05 <05 <50 <5 0 <05 <05 <05 <05 <05 <05 11/20/03 <05 1 <05 1 <05 1 <05 <50 <S 0 <05 1 <05 <05 <05 <05 <0 S CAMCL-Cahfomm Maximum Contaminat Level NE None Established 1 of 16