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TABLE 4
<br /> FIELD PARAMETERS AND WELL DETAILS
<br /> 2012 ANNUAL GROUNDWATER MONITORING REPORT
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA
<br /> Page 11 of 17
<br /> Field Parameters
<br /> Top of
<br /> Well Depth to Water Casing Groundwater Calc Dissolved
<br /> Screened Water- Diameter Well Depth Water Column Elevation Elevation Purge Vol Purge Vol pH(standard EC Temp Oxygen ORP
<br /> Well bearing Zone Sample Date Event/Purpose Sample Time (in) (ft-btoc) (ft-btoc) Length(ft) (ft-amsl) (ft-amsl) (gal) (gal) units) (AS/Cm) (°C) (mg/L) (mV) Observations
<br /> In'ection Area Wells Continued
<br /> 5/16/2008 Supplemental 5:43 PM 6 190 56.21 133.79 28.53 -27.68 179.73 180 8.82 606 30.3 3.8 -195 Black,rotten egg odor
<br /> 7/10/2008 3rd Qtr. 8:23 AM 6 190 57.34 132.66 28.53 -28.81 179.28 180 7.29 1,042 21.3 8.8 -84 Black,rotten egg odor
<br /> 10/21/2008 4th Qtr. 10:04 AM 6 190 59.55 130.45 28.53 -31.02 255.43 390 7.48 1,024 19.5 7.2 114 Black,rotten egg odor
<br /> 1/8/2009 1st Qtr. 5:14 PM 6 190 60.34 129.66 28.53 -31.81 390.61 390 6.64 1,143 15.8 7.5 -47 Black,no odor
<br /> 4/7/2009 2nd Qtr. 6:39 PM 6 190 61.34 128.66 28.53 -32.81 566.85 390 7.04 1,200 20.4 1.1 -61 Black,musty odor
<br /> 7/14/2009 3rd Qtr. 3:36 PM 6 190 62.33 127.67 28.53 -33.80 562.49 390 7.13 1,084 29.3 1.3 -290 Turbid,no odor
<br /> 10/12/2009 4th Qtr. 4:29 PM 6 190 63.56 126.44 28.53 -35.03 557.07 390 7.35 1,012 20.7 5.5 23 Turbid,no odor
<br /> 2/1/2010 1st Qtr. 6:59 PM 6 190 63.83 126.17 28.53 -35.30 555.88 390 7.26 1,205 19.3 1.7 190 Turbid,no odor
<br /> 4/14/2010 2nd Qtr. 9:49 AM 6 190 62.29 127.71 28.53 -33.76 562.66 390 7.07 1,103 20.1 2.3 186 Light brown,no odor
<br /> EW-1 Shallow/Interm. 7/7/2010 3rd Qtr. 5:29 PM 6 190 60.19 129.81 28.53 -31.66 571.92 390 7.22 993 28.4 4.7 30 Clear,no odor
<br /> 10/13/2010 4th Qtr. 10:32 AM 6 190 58.93 131.07 28.53 -30.40 577.47 420 7.14 973 21.2 2.1 60 Light gray,no odor
<br /> 1/21/2011 1st Qtr. 11:46 AM 6 190 58.21 131.79 28.53 -29.68 580.64 420 7.07 964 21.2 4.6 167 Clear,no odor
<br /> 4/13/2011 2nd Qtr. 6:22 PM 6 190 56.49 133.51 28.53 -27.96 588.22 420 7.24 723 19.7 6.5 75 Clear,no odor
<br /> 7/20/2011 3rd Qtr. 12:37 PM 6 190 54.9 135.10 28.53 -26.37 595.22 420 7.43 716 27.8 4.4 109 Clear,no odor
<br /> 10/12/2011 4th Qtr. 5:28 PM 6 190 53.31 136.69 28.53 -24.78 602.23 420 7.40 556 21.6 7.8 162 Clear,no odor
<br /> 1/24/2012 1st Qtr. 9:12 AM 6 190 52.9 137.10 28.53 -24.37 604.04 420 6.87 607 20.4 7.1 223 Clear,no odor
<br /> 4/24/2012 2nd Qtr. 10:32 AM 6 190 52.5 137.50 28.53 -23.97 605.80 420 6.88 629 21.2 5.7 156 Light gray,no odor
<br /> 7/18/2012 3rd Qtr 2:35 PM 6 190 51.73 138.27 28.53 -23.20 609.19 450 7.21 423 21.6 3.5 57 Clear,no odor
<br /> 10/22/2012 4th Qtr 9:00 AM 6 190 52.37 137.63 28.53 -23.84 606.37 450 7.08 651 19.6 7.9 147 Clear,no odor
<br /> 1/10/2008 Baseline 2:27 PM 2 Ito 55.91 54.09 29.07 -26.84 23.35 22.50 7.49 426 18.2 4.6 253 Clear,no odor
<br /> 4/2/2008 2nd Qtr. 5:32 PM 2 110 55.83 54.17 29.07 -26.76 23.51 30 7.74 733 20.7 5.2 45 Clear,no odor
<br /> 7/11/2008 3rd Qtr. 5:44 PM 2 Ito 56.90 53.10 29.07 -27.83 22.93 22.50 7.34 999 23.4 3.9 59 Turbid,no odor
<br /> 10/22/2008 4th Qtr. 6:00 PM 2 110 59.23 50.77 29.07 -30.16 21.42 22.50 7.26 879 22.3 3.7 NA Turbid,rotten egg odor
<br /> 11/13/2008 4th Qtr./Supplemental 3:05 PM 2 Ito 59.72 50.28 29.07 -30.65 22.00 32 6.53 867 21.4 1.5 -75 Light gray,no odor
<br /> 1/12/2009 1st Qtr. 1:29 PM 2 110 60.25 49.75 29.07 -31.18 20.93 22.5 6.78 1,041 20.5 4.3 161 Turbid,no odor
<br /> 4/8/2009 2nd Qtr. 3:54 PM 2 Ito 61.76 48.24 29.07 -32.69 20.91 22.5 7.16 1,024 21.2 2.5 123 Turbid,no odor
<br /> 7/15/2009 3rd Qtr. 3:54 PM 2 110 63.00 47.00 29.07 -33.93 19.44 22.5 7.13 1,051 23.3 5.1 116 Turbid,rotten egg odor
<br /> 10/15/2009 4th Qtr. 12:40 PM 2 Ito 64.62 45.38 29.07 -35.55 18.64 22.5 7.14 1,015 22.7 3.6 162 Turbid,no odor
<br /> 2/3/2010 1st Qtr. 10:22 AM 2 110 64.51 45.49 29.07 -35.44 18.70 22.5 7.10 1,082 20.7 2.8 238 Clear,no odor
<br /> 4/15/2010 2nd Qtr. 1:31 PM 2 Ito 62.57 47.43 29.07 -33.50 19.79 22.5 7.17 1,061 21.0 3.8 165 Clear,no odor
<br /> TW-13 100-Foot Sand 7/8/2010 3rd Qtr. 6:06 PM 2 110 59.22 50.78 29.07 -30.15 24.86 22.5 6.97 1,131 21.7 4.1 108 Clear,no odor
<br /> 10/14/2010 4th Qtr. 12:34 PM 2 Ito 56.91 53.09 29.07 -27.84 25.99 22.5 7.01 1,136 21.9 3.4 93 Clear,no odor
<br /> 12/8/2010 4th Qtr. 11:59 AM 2 110 57.40 52.60 29.07 -28.33 25.75 22.5 6.80 1,260 21.8 3.1 49 Clear,no odor
<br /> 1/21/2011 1st Qtr. 3:54 PM 2 Ito 57.19 52.81 29.07 -28.12 25.86 22.5 6.92 1,110 20.2 3.2 193 Clear,no odor
<br /> 4/13/2011 2nd Qtr. 2:24 PM 2 110 55.28 54.72 29.07 -26.21 26.79 22.5 6.97 857 20.6 3.7 148 Clear,no odor
<br /> 7/20/2011 3rd Qtr. 8:31 AM 2 Ito 53.40 56.60 29.07 -24.33 27.71 15.0 6.63 978 22.2 3.1 179 Clear,no odor
<br /> 10/12/2011 4th Qtr. 2:12 PM 2 110 51.46 58.54 29.07 -22.39 28.66 52.5 7.14 642 22.2 4.5 164 Turbid,no odor
<br /> 1/25/2012 1st Qtr. 9:37 AM 2 Ito 51.88 58.12 29.07 -22.81 28.46 30.0 6.99 571 20.7 4.7 201 Clear,no odor
<br /> 4/25/2012 2nd Qtr. 5:15 PM 2 110 51.48 58.52 29.07 -22.41 28.65 30.0 7.21 618 21.0 7.1 112 Turbid,no odor
<br /> 7/24/2012 3rd Qtr 11:42 AM 2 Ito 51.22 58.78 29.07 -22.15 28.78 30.0 7.06 545 22.8 5.3 154 Clear,no odor
<br /> 10/23/2012 4th Qtr 6:47 PM 4 110 51.83 58.17 29.07 -22.76 28.48 30.0 6.93 530 20.7 24.0 176 Clear,no odor
<br /> 3/19/2008 Baseline/2nd Qtr 1:17 PM 2 110 55.85 54.15 28.39 -27.46 24.18 30 7.57 829 19.9 2.3 163 Clear,no odor
<br /> 7/11/2008 3rd Qtr. 11:09 AM 2 Ito 56.34 53.66 28.39 -27.95 24.80 30 7.43 1,016 22.1 8.2 94 Turbid,no odor
<br /> 10/22/2008 4th Qtr. 1:47 PM 2 110 58.46 51.54 28.39 -30.07 23.24 22.5 7.51 946 26.1 8.8 113 Turbid,rotten egg odor
<br /> 1/12/2009 1st Qtr. 9:09 AM 2 Ito 59.52 50.48 28.39 -31.13 22.72 22.5 7.94 819 19.4 6.3 269 Turbid,no odor
<br /> 4/8/2009 2nd Qtr. 11:29 AM 2 110 60.89 49.11 28.39 -32.50 22.67 22.5 7.72 390 20.7 4.7 34 Gray,light rotten egg odor
<br /> 7/14/2009 3rd Qtr. 5:22 PM 2 Ito 61.93 48.07 28.39 -33.54 21.24 22.5 7.21 989 22.3 7.8 7 Turbid,no odor
<br /> 10/14/2009 4th Qtr. 2:54 PM 2 110 63.37 46.63 28.39 -34.98 20.53 45 7.66 240 21.3 4.1 60 Turbid,no odor
<br /> 2/2/2010 1st Qtr. 10:24 AM 2 Ito 63.62 46.38 28.39 -35.23 22.50 20.41 7.02 160 19.5 2.7 146 Turbid,no odor
<br /> 4/14/2010 2nd Qtr. 12:54 PM 2 110 61.85 48.15 28.39 -33.46 21.58 22.5 7.19 273 20.2 2.8 134 Turbid,no odor
<br /> TW-15 100-Foot Sand 7/8/2010 3rd Qtr. 9:41 AM 2 1t0 59.32 50.68 28.39 -30.93 24.81 22.5 7.45 859 20.7 4.6 85 Clear,no odor
<br /> 10/13/2010 4th Qtr. 12:56 PM 2 110 57.78 52.22 28.39 -29.39 25.57 22.5 7.39 971 21.7 3.8 161 Clear,no odor
<br /> 12/8/2010 4th Qtr. 11:24 AM 2 Ito 57.23 52.77 28.39 -28.84 25.84 22.5 7.07 1,113 22.4 3.5 99 Turbid,no odor
<br /> 1/21/2011 1st Qtr. 1:47 PM 2 110 57.09 52.91 28.39 -28.70 25.90 22.5 7.22 74 20.5 4.0 205 Turbid,no odor
<br /> 4/14/2011 2nd Qtr. 10:32 AM 2 Ito 55.52 54.48 28.39 -27.13 26.67 30.0 6.82 440 19.9 3.6 142 Turbid,no odor
<br /> 7/20/2011 3rd Qtr. 3:22 PM 2 110 53.63 56.37 28.39 -25.24 27.60 30.0 7.13 667 21.9 4.3 207 Clear,no odor
<br /> 10/13/2011 4th Qtr. 9:10 AM 2 Ito 51.63 58.37 28.39 -23.24 28.58 30.0 7.36 580 20.6 4.4 241 Turbid,no odor
<br /> 5/2/2012 2nd Qtr. 8:12 AM 2 110 50.98 59.02 28.39 -22.59 28.90 30.0 6.90 594 20.5 6.7 176 Clear,no odor
<br /> 7/18/2012 3rd Qtr. 9:12 PM 2 Ito 50.78 59.22 28.39 -22.39 28.99 30.0 7.06 482 20.5 4.9 247 Clear,no odor
<br /> 10/24/2012 4th Qtr 2:42 PM 2 110 51.39 58.61 28.39 -23.00 28.70 30.0 7.28 510 21.0 3.4 226 Clear,no odor
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