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TABLE 4
<br /> FIELD PARAMETERS AND WELL DETAILS
<br /> 2011 ANNUAL GROUNDWATER MONITORING REPORT
<br /> FORMER MARLEY COOLING TOWER SITE
<br /> STOCKTON,CALIFORNIA
<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) (µS/cm) (°C) (mg/L) (mV) Observations
<br /> Injection Area Wells Continued
<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 2 110 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 2 110 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 2 110 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 2 105.32 63.37 41.95 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 2 105.32 63.62 41.70 28.39 -35.23 22.50 20.41 7.02 160 19.5 2.7 146 Turbid,no odor
<br /> TW-15 100-Foot Sand 4/14/2010 2nd Qtr. 12:54 PM 2 105.93 61.85 44.08 28.39 -33.46 21.58 22.5 7.19 273 20.2 2.8 134 Turbid,no odor
<br /> 7/8/2010 3rd Qtr. 9:41 AM 2 105.32 59.32 46.00 28.39 -30.93 22.52 22.5 7.45 859 20.7 4.6 85 Clear,no odor
<br /> 10/13/2010 4th Qtr. 12:56 PM 2 105.32 57.78 47.54 28.39 -29.39 23.28 22.5 7.39 971 21.7 3.8 161 Clear,no odor
<br /> 12/8/2010 4th Qtr. 11:24 AM 2 105.32 57.23 48.09 28.39 -28.84 23.54 22.5 7.07 1,113 22.4 3.5 99 Turbid,no odor
<br /> 1/21/2011 1st Qtr. 1:47 PM 2 105.32 57.09 48.23 28.39 -28.70 23.61 22.5 7.22 74 20.5 4.0 205 Turbid,no odor
<br /> 4/14/2011 2nd Qtr. 10:32 AM 2 105.32 55.52 49.80 28.39 -27.13 24.38 30.0 6.82 440 19.9 3.6 142 Turbid,no odor
<br /> 7/20/2011 3rd Qtr. 3:22 PM 2 105.32 53.63 51.69 28.39 -25.24 25.31 30.0 7.13 667 21.9 4.3 207 Clear,no odor
<br /> 10/13/2011 4th Qtr. 9:10 AM 2 105.32 51.63 53.69 28.39 -23.24 26.29 30.0 7.36 580 20.6 4.4 241 Turbid,no odor
<br /> 4/2/2008 Baseline/2nd Qtr 5:04 PM 2 110 55.05 54.95 27.29 -27.76 25.68 30 7.45 910 20.3 6.6 92 Clear,no odor
<br /> 7/11/2008 3rd Qtr. 4:42 PM 2 110 55.35 54.65 27.29 -28.06 25.77 30 9.18 3 22.8 0.2 -296 Bright yellow,rotten egg
<br /> 10/22/2008 4th Qtr. 11:05 AM 2 110 57.51 52.49 27.29 -30.22 24.37 30 9.10 1,507 21.4 0.6 -198 Yellow,rotten egg odor
<br /> 1/9/2009 1st Qtr. 1:26 PM 2 110 58.54 51.46 27.29 -31.25 23.87 22.5 7.05 1,515 19.8 3.4 -212 Yellow,rotten egg odor
<br /> 4/8/2009 2nd Qtr. 9:54 AM 2 110 59.95 50.05 27.29 -32.66 23.37 22.5 7.56 839 20.6 8.8 -202 Gray,rotten egg odor
<br /> 7/14/2009 3rd Qtr. 4:54 PM 2 110 60.52 49.48 27.29 -33.23 23.25 22.5 6.86 1,079 23.5 2.8 -242 Turbid,rotten egg odor
<br /> 10/12/2009 4th Qtr. 5:29 PM 2 108.01 61.84 46.17 27.29 -34.55 22.60 22.6 7.19 989 20.7 5.8 -199 Clear,no odor
<br /> 2/2/2010 1st Qtr. 9:41 AM 2 108.01 62.11 45.90 27.29 -34.82 22.50 22.47 6.98 1,046 18.4 2.2 -16 Clear,rotten egg odor
<br /> TW-16 100-Foot Sand 4/14/2010 2nd Qtr. 12:19 PM 2 107.30 60.58 46.72 27.29 -33.29 22.87 22.5 7.20 1,153 19.7 2.3 -47 Clear,rotten egg odor
<br /> 7/8/2010 3rd Qtr. 9:02 AM 2 108.01 58.42 49.59 27.29 -31.13 24.28 30 7.25 966 20.8 2.2 -101 Clear,rotten egg odor
<br /> 10/13/2010 4th Qtr. 12:10 PM 2 108.01 58.88 49.13 27.29 -31.59 24.05 30 7.45 1,133 21.8 3.1 35 Clear,rotten egg odor
<br /> 12/8/2010 4th Qtr. 10:52 AM 2 108.01 56.24 51.77 27.29 -28.95 25.35 30 7.22 1,285 21.0 4.8 -50 Gray,rotten egg odor
<br /> 1/21/2011 1st Qtr. 1:08 PM 2 108.01 56.10 51.91 27.29 -28.81 25.42 30 7.05 963 20.6 2.9 95 Turbid,rotten egg odor
<br /> 4/14/2011 2nd Qtr. 9:54 AM 2 108.01 54.56 53.45 37.29 -17.27 26.17 30 6.98 897 20.3 2.5 190 Clear,rotten egg odor
<br /> 7/20/2011 3rd Qtr. 2:37 PM 2 108.01 52.83 55.18 37.29 -15.54 27.02 30 7.07 825 21.1 4.5 191 Clear,no odor
<br /> 10/13/2011 4th Qtr. 8:32 AM 2 108.01 51.13 56.88 37.29 -13.84 27.85 30 7.19 582 20.3 3.5 197 Turbid,no odor
<br /> 1/21/2011 1st Qtr. 2:18 PM 4 149.00 58.75 90.25 25.79 -32.96 176.72 180 7.57 813 18.9 10.4 241 Clear,no odor
<br /> MW-436(I-5) Intermediate 4/12/2011 2nd Qtr. 1:01 PM 4 149.00 52.95 96.05 25.79 -27.16 188.08 210 7.61 699 18.5 7.5 253 Clear,no odor
<br /> 8/9/2010 Baseline 4:20 PM 2 127.30 58.10 69.20 27.70 -30.40 400.00 400 7.82 751 22.9 5.8 62 Clear,no odor
<br /> 8/16/2010 Baseline 12:05 PM 2 126.91 57.96 68.95 27.70 -30.26 33.76 37.5 7.44 863 22.0 3.4 151 Clear,no odor
<br /> 8/23/20010 Baseline 10:13 AM 2 126.91 57.92 68.99 27.70 -30.22 33.78 37.5 7.38 883 21.4 3.3 168 Yellow,no odor
<br /> 10/14/2010 4th Qtr. 2:10 PM 2 126.91 56.81 70.10 27.70 -29.11 34.32 37.5 7.38 778 27.7 7.3 149 Light yellow,no odor
<br /> 12/6/2010 4th Qtr. 9:30 AM 2 126.90 56.68 70.22 27.70 -28.98 34.38 37.5 7.33 908 20.0 7.1 181 Light yellow,no odor
<br /> 1/25/2011 1st Qtr. 4:53 PM 2 126.91 56.38 70.53 27.70 -28.68 34.53 37.5 7.40 726 20.8 8.2 268 Light yellow,no odor
<br /> MW-4475 Intermediate 4/18/2011 2nd Qtr. 2:30 PM 2 126.91 54.81 72.10 27.70 -27.11 35.30 37.5 7.48 671 20.9 6.7 210 Light lime,no odor
<br /> 5/23/2011 Supplemental 4:40 PM 2 126.91 53.93 72.98 27.70 -26.23 35.73 37.5 7.45 687 20.5 6.7 293 Light yellow,no odor
<br /> 6/20/2011 Supplemental 3:10 PM 2 126.91 53.52 73.39 27.70 -25.82 35.93 37.5 7.33 624 22.0 7.5 218 Clear,no odor
<br /> 7/21/2011 3rd Qtr. 5:25 PM 2 126.91 52.80 74.11 27.70 -25.10 36.28 37.5 7.54 551 21.4 7.8 247 Slight yellow,no odor
<br /> 8/22/2011 Supplemental 2:13 PM 2 126.91 51.32 75.59 27.70 -23.62 37.01 37.5 7.52 518 21.6 6.3 226 Clear,no odor
<br /> 10/17/2011 4th Qtr. 2:53 PM 2 126.91 51.00 75.91 27.70 -23.30 37.17 37.5 7.00 556 20.7 4.2 229 Clear,no odor
<br /> 8/9/2010 Baseline 1:00 PM 2 157.40 58.50 98.90 27.64 -30.86 600.00 600 7.70 580 21.8 6.2 79 Yellow,no odor
<br /> 8/16/2010 Baseline 11:04 AM 2 156.28 58.31 97.97 27.64 -30.67 47.97 52.5 7.48 644 21.4 2.1 297 Clear,no odor
<br /> 8/23/2010 Baseline 9:06 AM 2 156.20 58.40 97.80 27.64 -30.76 47.88 52.5 7.45 663 20.9 2.2 145 Clear,no odor
<br /> 10/14/2010 4th Qtr. 2:51 PM 2 156.28 57.33 98.95 27.64 -29.69 48.45 52.5 7.40 603 21.7 6.7 151 Clear,no odor
<br /> 12/6/2010 4th Qtr. 10:06 AM 2 156.20 55.95 100.25 27.64 -28.31 49.08 52.5 7.39 727 19.8 6.5 304 Clear,no odor
<br /> 1/25/2011 1st Qtr. 4:31 PM 2 156.28 56.70 99.58 27.64 -29.06 48.75 52.5 7.40 589 19.2 6.9 244 Clear,no odor
<br /> MW-447D Intermediate 4/18/2011 2nd Qtr. 1:56 PM 2 156.28 54.86 101.42 27.64 -27.22 49.66 52.5 7.80 529 20.3 5.4 207 Clear,no odor
<br /> 5/23/2011 Supplemental 5:16 PM 2 156.28 54.23 102.05 27.64 -26.59 49.96 52.5 7.63 544 20.3 7.0 267 Clear,no odor
<br /> 6/20/2011 Supplemental 3:51 PM 2 156.28 53.93 102.35 27.64 -26.29 50.11 52.5 7.50 504 21.6 7.7 220 Clear,no odor
<br /> 7/21/2011 3rd Qtr. 4:56 PM 2 156.28 53.14 103.14 27.64 -25.50 50.50 52.5 7.68 449 21.5 7.1 220 Turbid,no odor
<br /> 8/22/2011 Supplemental 1:43 PM 2 156.28 52.11 104.17 27.64 -24.47 51.00 52.5 7.77 419 21.1 8.3 215 Clear,no odor
<br /> 10/17/2011 4th Qtr. 2:22 PM 2 156.28 51.75 104.53 27.64 -24.11 51.18 52.5 7.65 427 20.5 7.4 215 Clear,no odor
<br /> 8/10/2010 Baseline 5:20 PM 2 125.30 58.27 67.03 27.79 -30.48 400.00 400 7.89 714 28.1 3.4 115 Yellow,no odor
<br /> 8/16/2010 Baseline 10:20 AM 2 125.35 58.35 67.00 27.79 -30.56 32.80 37.5 7.35 858 21.4 3.7 126 Clear,no odor
<br /> 8/23/2010 Baseline 8:23 AM 2 125.35 58.19 67.16 27.79 -30.40 32.88 30 7.34 889 20.9 1.5 191 Clear,no odor
<br /> 10/14/2010 4th Qtr. 3:30 PM 2 125.35 57.30 68.05 27.79 -29.51 33.32 37.5 7.39 823 23.3 4.7 169 Clear,no odor
<br /> 12/6/2010 4th Qtr. 10:45 AM 2 125.20 56.56 68.64 27.79 -28.77 33.61 37.5 7.37 1,012 20.9 4.9 314 Clear,no odor
<br /> 1/25/2011 1st Qtr. 5:25 PM 2 125.35 56.65 68.70 27.79 -28.86 33.64 37.5 7.30 813 19.8 5.8 280 Clear,no odor
<br /> MW-4485 Intermediate 4/18/2011 2nd Qtr. 3:01 PM 2 125.35 55.11 70.24 27.79 -27.32 34.39 37.5 7.96 513 21.4 3.3 204 Light brown,no odor
<br /> 5/23/2011 Supplemental 5:50 PM 2 125.35 54.61 70.74 27.79 -26.82 34.63 37.5 7.82 592 21.8 7.9 279 Turbid,no odor
<br /> 6/20/2011 Supplemental 4:27 PM 2 125.35 53.86 71.49 27.79 -26.07 35.00 37.5 7.61 570 22.7 4.2 226 Clear,no odor
<br /> 7/21/2011 3rd Qtr. 5:53 PM 2 125.35 53.23 72.12 27.79 -25.44 35.31 37.5 7.73 531 21.1 4.5 237 Clear,no odor
<br /> 8/22/2011 Supplemental 2:45 PM 2 125.35 52.19 73.16 27.79 -24.40 35.82 37.5 7.65 523 22.3 4.9 235 Clear,no odor
<br /> 10/17/2011 4th Qtr. 3:30 PM 2 125.35 51.42 73.93 27.79 -23.63 36.20 27.5 7.57 526 21.8 5.2 205 Turbid,no odor
<br /> Page 9 of 13
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