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Appendix C-Historical Water Quality City of Lathrop
<br /> Consolidated Treatment Facility
<br /> Monitoring and Reporting Program 115-2016-0028-03 Rev3
<br /> MWR-32
<br /> Total
<br /> Date Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium Manganese Barium Nickel Bromide Chloride Fluoride Sulfate
<br /> Sampled pH Bacteria (uS/cm) (mg/L) (mV) TDS(mg/L) mess (mg/L) (mg/L) (mg/L) (mg/L) Iron(mg/L) (mg/L) (mg/L) (mg/L) Zinc(mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
<br /> (per 100 (mg/L)
<br /> mL
<br /> 8/31/2005 7.17 >1,600 4,500 -- - 2,600 NA 350 160 10 410 ND 7.3 0.052 ND ND 2.8 1,100 1.3 650
<br /> 11/29/2005 6.98 170 4,300 -- - 2,700 NA 340 140 8.2 410 1.2 7.6 0.059 NO 0.031 2.9 1,000 ND 660
<br /> 2/8/2006 7.08 ND 4,300 -- - 2,600 NA 360 140 7.0 410 ND 7.8 0.038 ND ND 2.9 1,100 ND 680
<br /> 5/2/2006 7.42 NO 4,200 - - 2,900 1,500 370 150 5.8 350 ND 0.91 0.026 ND ND 2.8 980 0.15 620
<br /> 8/3/2006 6.16 3 4,424 0.14 132 3,800 1,700 410 170 8.6 360 ND 12 0.038 0.021 ND 2.7 1,000 ND 650
<br /> 10/25/2006 6.65 ND 4,406 0.42 88 2,800 1,500 360 140 6.7 380 ND 8.3 0.037 0.0019 0.003 2.8 980 ND 670
<br /> 1/29/2007 6.81 ND 4,440 1.36 91 1,800 1,500 360 140 7.2 380 ND 10 0.037 0.014 0.028 2.5 1,000 ND 640
<br /> 4/30/2007 6.62 4 4,402 2.47 82 3,500 1,500 370 150 11 350 NO 10 0.034 0.015 ND 2.8 1,000 ND 660
<br /> 8/6/2007 6.56 2 4,385 1.53 126 3,000 1,400 350 140 6.3 350 ND 4.5 0.031 0.0076 ND 2.7 1,000 ND 650
<br /> 11/5/2007 7.00 ND 3,728 2.79 64 2,500 990 230 99 4.9 420 0.042 0.10 0.032 0.0035 ND 2.4 790 0.20 510
<br /> 2/8/2008 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
<br /> 4/28/2008 6.89 ND 3,758 1.58 146 2,500 1,000 240 98 3.9 400 ND 0.12 0.029 0.0059 ND 2.4 830 0.17 540
<br /> 8/21/2008 7.04 4 4,016 -- 169 2,900 1,200 280 110 4.6 410 ND 0.38 NA NA NA 2.7 930 NA 560
<br /> 11/17/2008 6.60 ND 4,130 0.30 117 3,000 1,400 340 130 5.5 330 0.12 2.9 NA NA NA 3.0 1,000 NA 590
<br /> 2/10/2009 6.44 17 4,406 1.05 139 2,900 1,520 360 150 4.6 340 ND 2.9 NA NA NA 2.8 1,000 NA 610
<br /> 2/10/2009 6.44 13 4,406 1.05 139 2,800 1,520 360 150 4.6 330 NO 3.5 NA NA NA 2.7 1,000 NA 620
<br /> 4/20/2009 6.31 ND 4,236 0.36 97 3,000 1,540 370 150 5.2 320 ND 7.2 NA NA NA 2.6 970 NA 590
<br /> 8/4/2009 6.59 7 3,820 3.60 154 2,880 1,500 375 137 7.0 311 0.13 9.8 NA NA NA 2.0 930 NA 590
<br /> 10/27/2009 6.70 2 3,838 4.20 57 2,630 1,400 342 133 6.0 308 0.12 9.0 NA NA NA 2.21 970 NA 620
<br /> 1/27/2010 6.70 ND 4,033 1.20 177 2,510 1,520 369 146 5.0 272 NO 9.6 NA NA NA 2.04 970 NA 610
<br /> 5/5/2010 6.51 8 4,121 2.30 158 2,610 1,560 376 152 5.0 290 ND 7.8 NA NA NA 2.14 950 NA 600
<br /> 9/3/2010 6.66 8 3,920 2.63 43 2,840 1,520 372 144 6.0 343 0.09 0.39 NA NA NA 2.11 1,010 NA 620
<br /> 10/28/2010 6.34 ND 4,240 8.83 143 2,850 1,460 357 139 6.0 555 0.22 0.08 NA NA NA 2.30 1,020 NA 630
<br /> 1/18/2011 6.46 ND 4,120 1.66 347 2,580 1,590 388 152 5.0 328 ND 1.7 NA NA NA 2.39 1,040 NA 660
<br /> 4/18/2011 6.61 ND 4,011 3.11 171 2,890 1,480 359 141 6.0 358 0.06 0.12 NA NA NA 2.57 970 NA 670
<br /> 8/15/2011 6.47 ND 4,166 4.53 144 2,880 1,480 370 135 6.0 180 0.15 1.7 NA NA NA 2.10 960 NA 610
<br /> 10/24/2011 6.32 ND 4,268 3.89 424 2,770 1,480 367 137 5.0 371 0.35 0.14 NA NA NA 2.49 990 NA 640
<br /> 1/26/2012 6.65 ND 4,230 2.99 142 2,580 1,530 368 148 5.0 406 NO 0.17 NA NA NA 2.33 1,180 NA 730
<br /> 4/25/2012 6.46 30 4,305 2.70 101 2,760 1,450 357 137 5.0 344 NO 0.06 NA NA NA 2.35 1,120 NA 680
<br /> 7/25/2012 6.44 ND 4,119 2.03 73 2,620 1,480 359 142 5.0 385 NO 1.7 NA NA NA 2.45 1,130 NA 740
<br /> 10/22/2012 6.53 50 5,067 2.23 70 3,390 1,690 403 167 5.0 487 NO ND NA NA NA 2.94 1,190 NA 690
<br /> 1/29/2013 6.57 ND 5,474 3.42 139 3,370 1,790 426 178 6.0 545 NO ND NA NA NA 2.84 1,450 NA 820
<br /> 4/25/2013 6.66 ND 5,303 3.34 144 3,520 1,860 447 181 5.0 738" ND ND NA NA NA 3.20 1,310 NA 680
<br /> 7/30/2013 6.20 340 5,493 4.23 285 3,320 1,830 427 186 5.0 601 ND ND NA NA NA 3.05 1,380 NA 840
<br /> 11/182013 7.05 ND ,533 1.25 99 36890 1,890 443 91 70 53 ND ND NA NA NA 2.382 1,460 NA 8160
<br /> 4 00 0 81/31//01 66 .0 16 50 024 2 ND 478 2 142 3, 32 156 ND N NA NA NA 27 NA NO is"not detected".
<br /> NA is not analyzed".
<br /> NS is"not sampled",due to wet and inaccessible conditions.
<br /> "denotes average of lab reported values.
<br /> River Islands-MWR-32 River Islands-MWR-32
<br /> Total Dissolved Solids NOs Nitrogen
<br /> 6,000 20
<br /> 5,000
<br /> •:24,000 15
<br /> E 3,000 E 10
<br /> *71
<br /> r 2,000 i 5
<br /> 1,000
<br /> 0 0
<br /> in
<br /> °m,'444444444��«a�nm�mmN m`�, m
<br /> Date 44444444444-.�-, �-•Date
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 249 of 281 EKI B90088.03
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