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TABLE GROUNDWATER ANALYTICAL DATA Knowles-Roek Stockton,California Page 7 of 15 (in parts per billion) N" t e" MW-8 5/611999 12,000 520 530 180 800 Cont'd 8/12/1998 9,500 960 880 220 980 11/11/1998 7,400 422 380 130 530 2/1111999 6,800 440 400 140 590 5/4/190 5,800 460 370 180 490 8/411999 4,200 120 140 46 210 11/18/1999 850 28 27 8.2 34 <5.0 2/3/2000 5,500 260 280 82 390 <5.0 5/9/2000 4,400 270 150 120 470 <5.0 8/16/2000 5,700 240 300 84 390 <25 11121/2000 2,800 100 100 37 150 <i0 3/7/2001 2,800 140 88 61 240 <4.0 5/24/2001 2,300 130 93 53 220 <2.0 8/30/2001 1,100 40 37 20 93 <2.0 12/7/2001 1,200 47 58 19 75 <2.0 2/21/2002 890 47 39 16 56 <20 5/22/2002 2,200 80 86 39 140 <2,0 8/27/2002 920 33 46 16 60 <2.0 11/13/2002 1,300 33 37 10 43 <2.0 2/20/2003 880 19 29 9.8 39 <10 5/29/2003 2,100 72 55 36 110 <2,0 8/27/2003 240 3.2 4.3 1.4 6.0 <2.0 11/20/2003 170 <0,5 1.9 018 3.1 <2.0 2/2612004 290 8.1 4.2 2,5 7-9 <2.0 5/20/2004 130 7.4 4.7 2.3 8.3 <2.0 8125/2004 630 33 29 16 57 5.5 11/17/2004 210 <0.5 1,7 1.1 3.3 <2.0 F2/23/2005 420 19 11 10 34 <0.5 ��"2 u 5/25/2uOO'5 230 15 6.0 1 5.3 12 0.6 MW-9 5/16/1995 <50 2.6 <0.5 <0.5 6.3 -- 11/9/1995 420 48 2.0 22 58 218/1995 56 5.0 <0.5 1.9 3.9 4/24/1996 240 27 1.2 10 17 8/7/1996 1,200 46 2.3 21 60 1115/1996 360 21 0.8 4.5 10 2/5/1997 170 12 <0.5 5.0 12 5/7/1997 150 25 <0.5 12 22 7/23/1997 210 23 <0.5 9.8 21 <5.0 11/39/1997 180 14 3.8 6.4 22 9.3 2/26/1998 360 23 1.5 15 21. 22 5/6/1998 360 18 <0.5 12 19 -- 8/12/1998 110 11 2.5 4.5 4.9 11/11/1998 89 7.6 <0,5 2.6 1.5 2/11/1999 <50 0.6 <0,5 <0.5 <M 5/4/1999 <50 <0.5 <0.5 <0.5 <6,5 8141]999 <50 <0.5 1 <0.5 1 <0.5 _<0.5 11/17/19991 120 <0,5 <0.5 <0.5 <0.5 18 2/3/2000 78 0.8 _H0.5 22