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TABLE 2 HISTORICAL GROUNDWATER ELEVATION AND ANALYTICAL DATA Crop Production Services,Inc. 1905 N.Broadway Avenue Stockton,California Nitrogen Compounds VOCs Fumigants Well IDGroundwater Depth to Water Sample Date Elevation Total (TOC ft amsl) (ft below TOC) TON 1, DLP 1,2,3-TCP DBCP EDB (feet amsl) (m9/L) Ammonia-N (tj(pglL) (pglL) (pglL) (pglL) (mg/L) CDPH Maximum Contaminant Level 10 5.0 0.2 0.05 CDPH Response Level I Notification Level 0.510.005 MW-2 3/20/1997 46.98 -19.54 27 50 34 --- - --- (cont.) 9/16/1997 60.27 -32.83 26 44 40 --- - - 3/19/1998 42.79 -15.35 21 29 33 11 0.29 0.28 11/6/1998 49.49 -22.05 - - 44.4 5.66 - - 11/19/1998 - - - - - - 0.15 <0.02 3/19/19% 38.35 -10.91 12.2 32.9 26.8 4.6 0.27 0.22 3/19/1999 D - - 12.3 34.3 27.1 4.45 0.26 0.27 9/29/1999 50.08 -22.64 17.4 34.4 15.2 <0.5 0.15 0.13 9/29/1999 D - - 17.4 31.6 18.7 <0.5 0.15 0.15 3/21/2000 35.37 -7.93 12.2 25.8 21 7.9 0.12 0.09 9/18/2000 51.35 -23.91 19 30.5 13 6.7 0.27 0.1 9/18/2000 - - 19.2 34.3 15 6.5 - - 3/29/2001 49.78 -22.34 20.7 28.7 12 4 0.223 0.165 3/29/2001 D - - 21 29.9 - - 0.263 0.19 8/6/2001 55.70 -28.26 27 26 25 10 0.085 0.35 3/21/2002 54.21 -26.77 32 15 18 6.1 0.4 0.21 9/13/2002 61.89 -34.45 34.6 21.1 16 3.7 0.44 0.19 9/13/2002 D - - 36.9 21.1 16 3.9 0.4 0.2 3/21/2003 59.07 -31.63 63.6 14.5 10.0 7.1 0.81 0.3 3/21/2003 D - -- 52.5 10.6 20.0 9.1 0.9 0.5 7/10/2003 60.43 -32.99 83.6 40.3 28 16 1.2 0.71 7/10/2003 D - - 89.3 63.8 32 15 2.4 0.82 1/8/2004 61.22 -33.78 77.7 11.1 3.4 2.8 0.57 <0.02 1/8/2004 D - - 83.1 14.4 3.3 6.0 0.60 <0.02 7/6/2004 62.54 -35.10 3.5 44 48 13 1.4 0.61 7/8/2004 D - - 1.8 45 48 14 1.4 0.65 1/5/2005 64.30 -36.86 49 6.7 26 14 1.2 0.66 1/52005 D - - 51 6.7 25 12 1.3 0.67 7/142005 56.94 -29.50 91 21 24 7.2 0.82 0.22 7/142005 D - - 28 21 38 7.8 1.1 0.37 2/1/2006 43.98 -16.54 27 5.3 3.7 0.45 0.073 <0.020 2/1/2006 D - - 33 5.4 4.5 1.5 0.087 0.037 8122006 46.83 -19.39 33 5.5 12 2.1 0.11 0.12 822006 D - - 61 5.3 12 2.4 <0.020 <0.020 1242007 49.30 -21.86 24 20 21 4.4 0.24 0.22 1242007 D - - 20 18 22 4.6 0.29 0.36 7/172007 51.62 -24.18 39 14 8.5 3.6 0.27 0.10 7/172007 D - - 19 14 7.4 3.9 0.24 0.069 2272008 51.73 -24.29 43 17 45 7.6 0.38 1.2 2272008 D - - 23 18 45 12 0.40 1.3 7/312008 58.53 -31.09 73 15 10 3.0 0.18 0.13 7/312008 D - 42 16 24 5.3 0.28 0.23 1282009 61.05 -33.61 68 41 95 12 0.96 2.1 1282009 D - 79 45 97 11 0.94 2.1 9252009 64.50 -37.06 55.3 58.8 110 12 0.84 2.4 9252009 D - 110 - 2/172010 58.18 -30.74 23.4 7.7 28 6.7 0.37 0.58 2/172010 D - - 27 - 1026/2010 55.13 -27.69 40.18 5.6 3.0 5.1 0.24 0.018 1026/2010 D - - 38 5.6 2.8 5.1 - - 3202011 44.86 -17.42 46 6.6 17 43 0.30 0.34 8242011 46.58 -19.14 47 45 170 16 0.44 1.1 4232012 Well Destroyed MW-2A 4/24/2012 47.63 -20.06 630 740 500 83 1.2 2.7 27.57 9/6/2012 47.55 -19.98 320 510 270 58 0.84 1.5 3152013 50.00 -22.43 640 1,090 530 120 1.7 3.4 9/112013 54.25 -26.66 358 921 370 52 1.3 2.8 2/122014 52.36 -24.79 446 747 340 66 1.1 2.1 9/172014 60.27 -32.70 479 940 400 99 0.78 1.6 3/172015 58.56 -30.99 374 721 570 75 0.77 1.3 8/192015 DRY - - - - - - - 3/92016 60.48 -32.91 346 825 960 88 - - 8/92016 DRY - - - - - - - 2/152017 51.46 -23.89 382 775 920 89 MW-3 5/21/1993 72.51 -45.08 20.4 - - - - -- 47.72