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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 8 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 /> 2/4/2008 Baseline 4:11 PM 4 174 56.50 117.50 29.84 -26.66 230.07 240 7.86 439 16.5 5.85 190 Clear,no odor
<br /> 4/2/2008 2nd Qtr. 1:39 PM 4 174 56.93 117.07 29.84 -27.09 229.23 240 7.85 486 18.5 8.5 228 Clear,no odor
<br /> 7/11/2008 3rd Qtr. 10:33 AM 4 174 57.75 116.25 29.84 -27.91 227.62 240 7.71 546 19.4 7.9 -22 Clear,no odor
<br /> 10/22/2008 4th Qtr. 12:49 PM 4 174 60.42 113.58 29.84 -30.58 222.40 240 8.15 476 20.8 2.4 98 Clear,no odor
<br /> 1/8/2009 1st Qtr. 4:04 PM 4 174 61.34 112.66 29.84 -31.50 220.59 240 7.65 518 16.9 7.5 157 Clear,no odor
<br /> 4/7/2009 2nd Qtr. 9:29 AM 4 174 63.05 110.95 29.84 -33.21 217.25 240 7.87 554 18.7 5.7 63 Clear,no odor
<br /> 7/15/2009 3rd Qtr. 9:37 AM 4 174 64.43 109.57 29.84 -34.59 214.54 210 7.65 552 20.5 10.8 112 Clear,no odor
<br /> 10/15/2009 4th Qtr. 8:51 AM 4 174 65.94 108.06 29.84 -36.10 211.59 210 8.09 477 20.5 6.5 153 Clear,no odor
<br /> 2/2/2010 1st Qtr. 1:43 PM 4 174 65.51 108.49 29.84 -35.67 212.43 210 8.05 378 15.6 2.3 223 Clear,no odor
<br /> 4/14/2010 2nd Qtr. 3:59 PM 4 174 63.32 110.68 29.84 -33.48 216.72 240 8.01 511 18.6 NA NA Clear,no odor
<br /> MW-2 Intermediate 7/8/2010 3rd Qtr. 12:40 PM 4 174 59.52 114.48 29.84 -29.68 224.16 240 8.11 411 24.7 1.3 121 Turbid,no odor
<br /> 10/13/2010 4th Qtr. 3:44 PM 4 174 57.68 116.32 29.84 -27.84 227.77 240 7.83 467 19.1 6.9 142 Turbid,no odor
<br /> 1/21/2011 1st Qtr. 6:23 PM 4 174 57.97 116.03 29.84 -28.13 227.20 240 7.71 459 18.0 9.5 219 Clear,no odor
<br /> 4/14/2011 2nd Qtr. 2:09 PM 4 174 55.24 118.76 29.84 -25.40 232.54 240 8.01 410 18.2 6.9 156 Clear,no odor
<br /> 7/20/2011 3rd Qtr. 6:44 PM 4 174 53.28 120.72 29.84 -23.44 236.38 240 7.95 390 19.1 8.0 206 Clear,no odor
<br /> 10/13/2011 4th Qtr. 12:09 PM 4 174 51.90 122.10 29.84 -22.06 239.08 240 7.77 347 19.2 7.9 218 Clear,no odor
<br /> 1/25/2012 1st Qtr. 1:49 PM 4 174 52.39 121.61 29.84 -22.55 238.12 240 7.75 304 18.2 6.5 258 Clear,no odor
<br /> 4/30/2012 2nd Qtr. 11:11 AM 4 174 51.19 122.81 29.84 -21.35 240.47 240 7.49 324 19.2 6.9 199 Clear,no odor
<br /> 7/24/2012 3rd Qtr. 3:44 PM 4 174 51.92 122.08 29.84 -22.08 239.04 240 7.73 196 19.5 7.3 192 Clear,no odor
<br /> 10/24/2012 4th Qtr 11:58 AM 4 174 52.73 121.27 29.84 -22.89 237.46 240 7.79 340 18.6 10.2 213 Turbid,no odor
<br /> 1/10/2008 Baseline 1:43 PM 4 182 56.80 125.20 29.96 -26.84 180.53 180 7.88 389 16.9 4.98 232 Light yellow,no odor
<br /> 4/1/2008 2nd Qtr. 6:22 PM 4 182 57.22 124.78 29.96 -27.26 179.06 180 7.86 866 19.0 2.4 147 Yellow,no odor
<br /> 5/20/2008 Supplemental 4:02 PM 4 182 82.28 99.72 29.96 -52.32 195.26 210 7.61 567 21.1 5.8 95 Light yellow,no odor
<br /> 7/11/2008 3rd Qtr. 5:22 PM 4 182 84.39 97.61 29.96 -54.43 191.13 210 7.54 694 20.9 6.5 119 Clear,no odor
<br /> 10/22/2008 4th Qtr. 7:11 PM 4 182 61.11 120.89 29.96 -31.15 236.71 240 7.56 648 19.9 8.7 194 Clear,no odor
<br /> 1/12/2009 1st Qtr. 3:04 PM 4 182 61.61 120.39 29.96 -31.65 235.93 240 7.33 676 19.3 7.2 145 Clear,no odor
<br /> 4/8/2009 2nd Qtr. 4:53 PM 4 182 94.00 88.00 29.96 -64.04 172.31 180 7.68 690 19.0 7.5 139 Clear,no odor
<br /> 7/15/2009 3rd Qtr. 4:48 PM 4 182 95.53 86.47 29.96 -65.57 169.31 180 7.62 724 24.2 9.5 160 Clear,no odor
<br /> 10/15/2009 4th Qtr. 1:36 PM 4 182 66.20 115.80 29.96 -36.24 226.74 240 7.45 752 21.3 4.7 152 Clear,no odor
<br /> 2/3/2010 1st Qtr. 11:13 AM 4 182 96.01 85.99 29.96 -66.05 168.37 180 7.49 795 19.5 4.8 212 Clear,no odor
<br /> 4/15/2010 2nd Qtr. 2:20 PM 4 182 63.44 118.56 29.96 -33.48 232.15 240 7.66 708 20.1 6.0 175 Clear,no odor
<br /> MW-213(I-7) Intermediate 7/8/2010 3rd Qtr. 6:46 PM 4 182 88.28 93.72 29.96 -58.32 183.51 210 7.61 688 21.1 4.7 145 Clear,no odor
<br /> 10/14/2010 4th Qtr. 1:39 PM 4 182 57.43 124.57 29.96 -27.47 243.92 240 7.54 799 21.0 3.1 122 Clear,no odor
<br /> 1/25/2011 1st Qtr. 3:44 PM 4 182 58.32 123.68 29.96 -28.36 242.18 240 7.24 780 19.4 7.8 191 Light gray,rotten egg odor
<br /> 4/13/2011 2nd Qtr. 3:07 PM 4 182 55.63 126.37 29.96 -25.67 247.45 270 7.20 577 19.2 6.5 155 Turbid,no odor
<br /> 7/20/2011 3rd Qtr. 9:12 AM 4 182 53.98 128.02 29.96 -24.02 250.68 270 7.10 694 21.2 7.4 249 Turbid,no odor
<br /> 8/22/2011 Supplemental 10:21 AM 4 182 52.10 129.90 29.96 -22.14 254.36 270 7.44 506 19.5 8.1 302 Clear,no odor
<br /> 10/17/2011 4th Qtr. 12:59 PM 4 182 52.60 129.40 29.96 -22.64 253.38 270 7.43 549 20.7 6.9 204 Turbid,no odor
<br /> 1/26/2012 1st Qtr. 11:32 AM 4 182 52.84 129.16 29.96 -22.88 252.91 270 7.50 533 19.8 5.1 267 Black;no odor
<br /> 4/24/2012 2nd Qtr. 4:37 PM 4 182 52.84 129.16 29.96 -22.88 252.91 270 7.59 443 21.1 7.1 196 Turbid,no odor
<br /> 7/25/2012 3rd Qtr. 10:37 AM 4 182 52.02 129.98 29.96 -22.06 254.51 270 7.34 534 20.1 7.9 107 Clear,no odor
<br /> 10/25/2012 4th Qtr 12:17 PM 4 182 92.38 89.62 29.96 -62.42 175.48 180 7.22 494 20.0 4.2 194 Clear,no odor
<br /> 7/10/2008 3rd Qtr. 12:11 PM 4 182 97.32 84.68 30.25 -67.07 165.81 180 7.67 560 21.3 9.1 182 Clear,no odor
<br /> 10/22/2008 4th Qtr. 4:38 PM 4 182 99.21 82.79 30.25 -68.96 162.11 180 7.55 531 19.2 5.9 168 Clear,no odor
<br /> 1/12/2009 1st Qtr. 11:54 AM 4 182 61.81 120.19 30.25 -31.56 235.34 240 6.67 539 18.8 6.1 216 Clear,no odor
<br /> 4/8/2009 2nd Qtr. 2:30 PM 4 182 64.39 117.61 30.25 -34.14 230.29 240 7.67 563 20.6 6.7 86 Clear,no odor
<br /> 7/15/2009 3rd Qtr. 3:34 PM 4 182 66.02 115.98 30.25 -35.77 227.10 240 7.66 585 21.4 9.6 138 Clear,no odor
<br /> 10/15/2009 4th Qtr. 12:01 PM 4 182 104.70 77.30 30.25 -74.45 151.36 150 7.47 596 19.9 5.2 152 Clear,no odor
<br /> 2/3/2010 1st Qtr. 9:55 AM 4 182 106.12 75.88 30.25 -75.87 148.58 150 7.53 603 17.9 4.1 226 Clear,no odor
<br /> 4/15/2010 2nd Qtr. 1:12 PM 4 182 64.09 117.91 30.25 -33.84 230.88 240 7.56 567 21.4 4.6 154 Clear,no odor
<br /> 7/8/2010 3rd Qtr. 5:54 PM 4 182 59.76 122.24 30.25 -29.51 239.36 240 7.64 534 20.1 5.1 127 Clear,no odor
<br /> MW-214(I-8) Intermediate 10/14/2010 4th Qtr. 12:14 PM 4 182 57.70 124.30 30.25 -27.45 243.39 240 8.00 535 32.7 5.5 152 Turbid,no odor
<br /> 1/21/2011 1st Qtr. 3:34 PM 4 182 58.20 123.80 30.25 -27.95 242.41 240 7.49 521 19.7 8.6 218 Clear,no odor
<br /> 4/13/2011 2nd Qtr. 1:04 PM 4 182 54.89 127.11 30.25 -24.64 248.89 270 7.54 528 19.0 7.2 91 Clear,no odor
<br /> 7/19/2011 3rd Qtr. 6:07 PM 4 182 53.05 128.95 30.25 -22.80 252.50 270 7.93 530 28.6 4.8 186 Turbid,no odor
<br /> 10/12/2011 4th Qtr. 1:37 PM 4 182 52.12 129.88 30.25 -21.87 254.32 270 7.53 437 24.6 5.8 177 Turbid,no odor
<br /> 1/24/2012 1st Qtr. 12:37 PM 4 182 52.65 129.35 30.25 -22.40 253.28 270 7.53 384 18.5 8 240 Turbid,no odor
<br /> 4/24/2012 2nd Qtr. 5:27 PM 4 182 52.10 129.90 30.25 -21.85 254.36 270 7.39 377 20.3 5.8 142 Turbid,no odor
<br /> 7/23/2012 3rd Qtr. 12:42 PM 4 182 52.25 129.75 30.25 -22.00 254.06 270 7.27 401 20.0 3.3 114 Turbid,no odor
<br /> 10/23/2012 4th Qtr 1:47 PM 4 182 52.83 129.17 30.25 -22.58 252.93 270 7.16 445 19.4 10.2 165 Turbid,no odor
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