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TABLE 2 ' GROUNDWATER ANALYTICAL DATA Knowles-Roek Stockton,California Page$of 15 (in parts per billion) We[I Date TPHg Benzene Toluene Ethylbenzene Xylenes MTBE MW-4 von000 <50 05 <0 5 <05 < Cont'd 8/15/2000 <50 <0 5 <0 5 0 5 11/21/2000 89 0 5 <D 5 5 1 15 06 06 <OS <OS 13 3/7/2001 <50 <0 5 <05 <D 5 <0 5 5/23/2001 <50 <D 5 < 9 8 8/29/2001 <50 <0 5 <0 5 <0 5 <D 5 8 5 OS <OS <D5 60 12/6/2001 Not Sampled 2/20/2002 <50 c4 5 <0 5 <0 5 <1 0 5/22/2002 87 Not Sampled 8/26/2002 <50 <0 5 <05 <05 <1 0 11/13/2002 8 2 Not Sampled 2/20/2003 <50 <0 5 5/28/2003 S 1 Not Sampled 8/27/2003 <SD1 <D 5 <0 5 <0 5 cl 0 11/19/2003 21 Not Sampled 2/25/2004 <50 <0 5I <0 5 1 <05 <1 0 5/20/2004 4 9 Not Sampled 8/25/2004 <50 <D 5 <D 5 <D 5 <10 11/17/2004 33 Not Sampled 2/23/2005 <50 <0 5 5/25/05- 3/7/2506 Not Sampled MW-10 5/16/1995 260 I9 4 1 3 9 . 11/9/1995 1,700 320 34 31 11 :. 25p 2/8/1995 5,200 760 68 82 440 4/24/1996 13 000 1,500 51 5- 8/7/1996 2,400 130 <0 5 88 80 1/5/1996 1,000 29 <0 5 14 8 7 2/5/1997 480 14 c0 5 <0 5 <D 5 5/7/1997 530 11 <0 5 <0 5 <0 5 - 7/23/1997 260 4 9 <D 5 <0 5 <D 5 <5 Q 11/20/1997 190 <05 < 2/26/1998 220 <0 0 5 <D 5 <D 5 <5 0 5 X05 <05 <05 <50 5/6/1998 83 <05 <D 5 <0 5 <05 8/11/1998 <50 <05 <0 5 <0 5 <0 5 - 11/11/1998 <50 <0 5 <D 5 <D 5 2/11/1999 <50 <05 <0 5 <0 5 <0 5 5/4/1999 <50 <D 5 <0 5 <0 5 <D 5 - 8/4/1999 110 <05 <0 5 <05 <0 5 11/17/1999 120 <05 <0 5 <0 5 <0 5 <5 0 2/3/2000 <50 <0 5 <0 5 <D 5 <0 5 <5 0 5/9/2000 130 28 <0 5 1 1 1 7 <5 0 8/15/2000 <50 <05 <0 5 <0 5 <0 5 < 11/21/2000 1805 0 1 5 <0 5 <05 <4 5 <5 0 3/7/2001 99 10 <0 5 <D 5 <0 5 4 2 5/23/2001 <5p <0 5 <D 5 <D 5 8/30/2001 2 0 Not Sampled 12/6/2001 <SD <05 <0 5 <0 5 <1 D 2/20/2002 ]0 Not Sampled