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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 6 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 /> 4/2/2008 Baseline/2nd Qtr 1:58 PM 4 82 54.73 27.27 26.64 -28.09 37.38 60 7.38 1,076 19.2 8.7 211 Clear,no odor
<br /> 5/20/2008 Supplemental 12:46 PM 4 82 53.82 28.18 26.64 -27.18 55.17 60 7.37 920 19.5 5.3 172 Clear,no odor
<br /> 7/11/2008 3rd Qtr. 11:26 AM 4 82 54.89 27.11 26.64 -28.25 53.08 60 7.03 1,252 20.3 4.5 -28 Clear,no odor
<br /> 10/21/2008 4th Qtr. 12:37 PM 4 82 56.90 25.10 26.64 -30.26 49.14 60 7.14 1,157 19.5 3.9 235 Clear,no odor
<br /> 1/9/2009 1st Qtr. 3:00 PM 4 82 57.90 24.10 26.64 -31.26 47.19 60 6.69 1,234 18.8 3.8 120 Clear,no odor
<br /> 4/8/2009 2nd Qtr. 10:36 AM 4 82 58.63 23.37 26.64 -31.99 45.76 60 7.10 1,240 19.2 NA NA Clear,no odor
<br /> 7/15/2009 3rd Qtr. 10:56 AM 4 82 59.67 22.33 26.64 -33.03 43.72 60 7.02 1,380 20.8 2.6 -71 Clear,no odor
<br /> 10/14/2009 4th Qtr. 11:04 AM 4 82 60.87 21.13 26.64 -34.23 41.37 60 6.99 1,452 20.3 1.4 -31 Clear,no odor
<br /> 2/2/2010 1st Qtr. 3:26 PM 4 82 61.13 20.87 26.64 -34.49 40.87 60 7.04 1,569 18.6 1.7 -26 Clear,no odor
<br /> 4/14/2010 2nd Qtr. 5:42 PM 4 82 59.78 22.22 26.64 -33.14 43.51 60 7.02 1,452 19.0 1.4 -6 Turbid,no odor
<br /> MW-303 Shallow 7/8/2010 3rd Qtr. 3:06 PM 4 82 57.91 24.09 26.64 -31.27 47.17 60 6.91 1,308 20.4 2.1 -70 Clear,no odor
<br /> 10/14/2010 4th Qtr. 8:21 AM 4 82 56.79 25.21 26.64 -30.15 49.36 60 6.98 1,240 19.4 4.1 39 Clear,no odor
<br /> 1/25/2011 1st Qtr. 8:26 AM 4 82 55.94 26.06 26.64 -29.30 51.03 60 6.90 1,193 18.4 5.1 47 Clear,no odor
<br /> 4/14/2011 2nd Qtr. 3:56 PM 4 82 54.37 27.63 26.64 -27.73 54.10 60 7.18 1,020 19.2 5.2 97 Clear,no odor
<br /> 7/21/2011 3rd Qtr. 9:26 AM 4 82 52.59 29.41 26.64 -25.95 57.59 60 7.06 798 19.4 3.5 143 Clear,no odor
<br /> 10/13/2011 4th Qtr. 1:26 PM 4 82 51.00 31.00 26.64 -24.36 60.70 60 7.05 657 20.0 3.4 124 Clear,no odor
<br /> 1/25/2012 1st Qtr. 10:21 AM 4 82 50.44 31.56 26.64 -23.80 61.80 60 7.00 563 18.7 2.4 163 Clear,no odor
<br /> 4/25/2012 2nd Qtr. 6:11 PM 4 82 49.89 32.11 26.64 -23.25 62.87 60 7.17 599 19.0 5.7 96 Clear,no odor
<br /> 7/24/2012 3rd Qtr. 10:54 AM 4 82 49.48 32.52 26.64 -22.84 63.68 60 6.94 521 19.4 3.3 79 Clear,no odor
<br /> 10/23/2012 4th Qtr 3:46 PM 4 82 50.00 32.00 26.64 -23.36 62.66 60 6.72 547 19.4 3.1 156 Clear,no odor
<br /> 1/9/2008 Baseline 11:06 AM 2 82 55.33 26.67 29.14 -26.19 12.01 15 7.63 430 14.9 5.24 301 Brown color,no odor
<br /> 4/1/2008 2nd Qtr. 10:43 AM 2 82 55.62 26.38 29.14 -26.48 11.86 15 7.84 959 21.2 5.6 91 Brown,no odor
<br /> 7/10/2008 3rd Qtr. 1:21 PM 2 82 56.30 25.70 29.14 -27.16 12.27 15 7.34 984 26.3 2.9 87 Turbid,no odor
<br /> 10/22/2008 4th Qtr. 9:46 AM 2 82 58.22 23.78 29.14 -29.08 11.24 15 7.36 865 21.7 5.9 253 Turbid,no odor
<br /> 1/8/2009 1st Qtr. 5:31 PM 2 82 60.02 21.98 29.14 -30.88 10.35 15 6.64 1,156 18.4 2.2 13 Brown,no odor
<br /> 4/7/2009 2nd Qtr. 11:32 AM 2 82 60.87 21.13 29.14 -31.73 10.40 15 7.28 1,222 22.7 6.1 -32 Turbid,rotten egg odor
<br /> 7/14/2009 3rd Qtr. 10:14 AM 2 82 62.46 19.54 29.14 -33.32 8.44 15 6.83 734 24.8 3.5 38 Gray,no odor
<br /> 10/12/2009 4th Qtr. 11:07 AM 2 82 64.33 17.67 29.14 -35.19 7.53 7.5 7.03 1,168 21.0 0.1 36 Gray,no odor
<br /> 2/1/2010 1st Qtr. 1:06 PM 2 82 64.14 17.86 29.14 -35.00 7.62 7.5 7.11 1,249 18.9 6.4 72 Light gray,no odor
<br /> 4/13/2010 2nd Qtr. 2:06 PM 2 82 62.50 19.50 29.14 -33.36 9.55 15 6.71 802 20.7 2.7 94 Light gray,rotten egg odor
<br /> TW-12 Shallow 7/7/2007 3rd Qtr. 11:46 AM 2 82 59.12 22.88 29.14 -29.98 11.20 15 6.83 1,061 24.3 1.6 32 Gray,no odor
<br /> 10/12/2010 4th Qtr. 4:16 PM 2 82 56.61 25.39 29.14 -27.47 12.43 15 6.98 930 24.7 4.1 83 Gray,no odor
<br /> 1/20/2011 1st Qtr. 11:56 AM 2 82 56.51 25.49 29.14 -27.37 12.48 15 7.21 1,159 20.0 5.2 204 Turbid,rotten egg odor
<br /> 4/13/2011 2nd Qtr. 9:56 AM 2 82 55.22 26.78 29.14 -26.08 13.11 15 7.07 913 19.3 4.8 124 Turbid/no odor
<br /> 7/19/2011 3rd Qtr. 2:06 PM 2 82 53.47 28.53 29.14 -24.33 13.97 15 7.07 1,007 23.5 6.1 170 Turbid,no odor
<br /> 10/12/2011 4th Qtr. 10:26 PM 2 82 51.20 30.80 29.14 -22.06 15.08 15 7.06 778 22.3 6.2 248 Brown,no odor
<br /> 1/25/2012 1st Qtr. 9:16 AM 2 82 51.74 30.26 29.14 -22.60 14.82 15 6.94 559 20.4 6.3 144 Clear,no odor
<br /> 4/25/2012 2nd Qtr. 4:56 PM 2 82 51.81 30.19 29.14 -22.67 14.78 15 7.01 681 20.9 5.5 42 Light gray,no odor
<br /> 7/24/2012 3rd Qtr. 11:16 AM 2 82 50.97 31.03 29.14 -21.83 15.19 15 6.93 521 23.4 4.8 48 Turbid,no odor
<br /> 10/23/2012 4th Qtr 10:56 AM 2 82 51.41 30.59 29.14 -22.27 14.98 15 6.75 608 22.3 8.3 98 Light gray,no odor
<br /> 3/19/2008 Baseline/2nd Qtr 12:22 PM 2 80 55.71 24.29 28.22 -27.49 10.97 15 7.11 942 21.4 2.7 192 Light brown,no odor
<br /> 7/10/2008 3rd Qtr. 2:36 PM 2 80 55.71 24.29 28.22 -27.49 11.25 15 7.04 1,284 27.5 1.3 -214 Black,rotten egg odor
<br /> 10/22/2008 4th Qtr. 12:05 PM 2 80 57.98 22.02 28.22 -29.76 9.37 15 7.08 1,159 22.4 0.0 -102 Black,rotten egg odor
<br /> 1/9/2009 1st Qtr. 8:50 AM 2 80 59.33 20.67 28.22 -31.11 8.70 15 6.67 1,574 18.2 0.7 -125 Black,rotten egg odor
<br /> 4/8/2009 2nd Qtr. 10:15 AM 2 80 60.40 19.60 28.22 -32.18 8.77 7.5 6.95 1,201 198.0 2.4 -14 Dark gray,no odor
<br /> 7/14/2009 3rd Qtr. 5:08 PM 2 80 61.45 18.55 28.22 -33.23 7.95 7.5 6.79 1,238 26.6 4.5 -190 Dark gray,rotten egg odor
<br /> 10/12/2009 4th Qtr. 5:43 PM 2 80 62.92 17.08 28.22 -34.70 7.23 7.5 7.21 1,114 21.2 6.4 -38 Black,no odor
<br /> 2/2/2010 1st Qtr. 10:01 AM 2 80 63.16 16.84 28.22 -34.94 7.11 7.5 6.88 1,581 17.9 2.3 34 Dark gray,rotten egg odor
<br /> TW-14 Shallow 4/14/2010 2nd Qtr. 12:33 PM 2 80 61.76 18.24 28.22 -33.54 7.52 7.5 6.77 1,433 19.9 2.5 74 Dark gray,none
<br /> 7/8/2010 3rd Qtr. 9:20 AM 2 80 59.34 20.66 28.22 -31.12 10.12 15 6.92 1,251 23.2 0.8 -56 Gray,rotten egg odor
<br /> 10/13/2010 4th Qtr. 12:31 PM 2 80 57.76 22.24 28.22 -29.54 10.89 15 6.82 1,339 23.8 0.7 32 Dark gray,no odor
<br /> 1/21/2011 1st Qtr. 1:26 PM 2 80 56.88 23.12 28.22 -28.66 11.32 15 7.02 1,126 21.6 6.9 105 Light gray,no odor
<br /> 4/14/2011 2nd Qtr. 10:11 AM 2 80 55.58 24.42 28.22 -27.36 11.96 15 6.69 882 20.3 3.3 125 Gray,no odor
<br /> 7/20/2011 3rd Qtr. 2:56 PM 2 80 53.54 26.46 28.22 -25.32 12.95 15 6.90 895 24.4 3.4 160 Gray,no odor
<br /> 10/13/2011 4th Qtr. 8:48 AM 2 80 51.44 28.56 28.22 -23.22 13.98 15 6.87 726 20.8 7.4 76 Gray,no odor
<br /> 7/18/2012 3rd Qtr. 8:46 AM 2 80 50.70 29.30 28.22 -22.48 14.35 15 6.47 763 22.5 1.7 200 Light gray,no odor
<br /> 10/23/2012 4th Qtr 4:16 PM 2 80 51.09 28.91 28.22 -22.87 14.15 15 6.34 557 21.8 1.5 125 Gray,no odor
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