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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-27
<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 7.84 >1600 3,100 - - 2,100 NA 290 130 5.3 160 ND 2.8 0.11 ND ND 1.5 740 ND 240
<br /> 11/28/2005 7.34 170 3,500 - - 2,500 NA 340 150 3.9 160 NO 3.8 0.15 ND ND 2.1 890 ND 360
<br /> 2J7/2006 7.37 4 3,700 - - 2,600 NA 350 160 3.9 190 ND 3.7 0.17 ND ND 2.5 1,000 ND 400
<br /> 5/1/2006 7.44 ND 3,100 - - 1,900 1,300 280 130 3.4 150 ND 2.2 0.14 ND ND 1.7 750 0.98 260
<br /> 8/7/2006 6.63 ND 3,164 0.22 110 2,500 1,200 280 120 4.0 150 ND 2.9 0.15 0.0013 ND 1.6 750 0.16 260
<br /> 10/26/2006 6.88 ND 3,936 0.44 128 2,800 1,600 360 170 4.8 260 ND 4.2 0.20 0.0088 0.0045 2.4 1,100 0.20 470
<br /> 1/30/2007 7.29 ND 4,391 0.74 95 2,600 1,700 390 180 5.6 300 ND 5.5 0.15 0.0024 ND 2.5 1,200 0.12 520
<br /> 1/30/2007 7.29 ND 4,391 0.74 95 2,600 1,700 390 190 5.5 310 NO 5.5 0.15 0.0025 ND 2.6 1,200 0.11 510
<br /> 5/2/2007 6.97 ND 4,065 0.32 102 3,200 1,600 370 170 5.7 290 ND 5.1 0.13 0.0025 ND 2.8 1,200 0.15 520
<br /> 8/2/2007 6.93 8 3,205 1.10 86 2,300 1,200 280 120 5.7 160 ND 2.9 0.10 0.0015 NO 1.7 850 0.19 300
<br /> 11/6/2007 7.00 2 3,801 0.25 108 2,800 1,500 360 160 6.5 240 0.032 4.6 0.14 0.0023 ND 2.4 1,100 0.18 420
<br /> 11/6/2007 7.00 ND 3,801 0.25 108 2,700 1,600 360 160 5.2 230 ND 4.4 0.14 0.0024 ND 2.4 1,100 0.26 430
<br /> 2/8/2008 7.05 ND 3,682 0.38 124 2,500 1,400 320 150 4.3 220 ND 3.3 0.11 0.0059 ND 2.1 990 0.18 390
<br /> 4/25/2008 7.03 ND 3,800 0.24 331 2,900 1,500 340 150 3.5 190 NO 2.9 0.09 0.0040 ND 2.1 1,000 0.22 400
<br /> 8/21/2008 7.02 13 3,347 0.21 88 2,800 1,100 260 120 3.2 170 ND 2.7 NA NA NA 1.8 810 NA 320
<br /> 11/17/2008 7.00 11 3,409 0.17 95 2,400 1,200 280 130 3.8 170 NO 3.1 NA NA NA 1.8 890 NA 340
<br /> 11/17/2008 7.00 ND 3,409 0.17 95 2,400 1,300 290 130 3.5 170 ND 3.0 NA NA NA 1.9 810 NA 320
<br /> 2/10/2009 6.94 23 3,350 0.69 107 2,300 1,230 280 130 3.2 170 NO 2.4 NA NA NA 1.8 840 NA 330
<br /> 4/20/2009 6.86 ND 3,202 0.26 69 2,500 1,230 280 130 3.5 190 ND 2.4 NA NA NA 1.8 820 NA 320
<br /> 8/5/2009 6.98 ND 3,383 0.23 189 2,020 1,370 315 141 4.0 192 NO 2.96 NA NA NA 1.62 790 NA 330
<br /> 10/28/2009 6.80 17 3,394 0.50 140 2,080 1,390 320 144 5.0 222 0.10 3.20 NA NA NA 1.56 820 NA 350
<br /> 1/28/2010 7.2 2 3,478 0.70 143 2,130 1,280 294 132 4.0 181 NO 2.32 NA NA NA 1.25 800 NA 330
<br /> 1/28/2010 7.2 2 3,478 0.70 143 2,090 1,230 283 127 3.0 174 NO 2.22 NA NA NA 1.23 790 NA 320
<br /> 5/5/2010 7.11 ND 3,300 0.82 170 2,010 1,380 314 144 3.0 197 NO 0.72 NA NA NA 1.46 830 NA 340
<br /> 8/30/2010 6.93 2 3,369 0.31 -1 2,420 1,430 332 146 4.0 243 0.09 2.98 NA NA NA 1.78 890 NA 400
<br /> 10/29/2010 6.89 ND 3,530 1.99 18 2,280 1,380 326 137 4.0 216 0.08 3.07 NA NA NA 1.64 870 NA 370
<br /> 1/17/2011 7.01 ND 3,601 0.62 248 2,120 1,370 315 141 4.0 215 0.16 2.71 NA NA NA 1.82 950 NA 420
<br /> 4/18/2011 6.92 ND 3,458 0.23 101 2,160 1,380 318 143 4.0 228 0.06 1.73 NA NA NA 1.86 830 NA 380
<br /> 4/18/2011 6.92 ND 3,458 0.23 101 2,470 1,360 314 141 4.0 226 0.06 1.41 NA NA NA 2.04 880 NA 440
<br /> 8/15/2011 6.96 2 3,500 1.04 132 2,210 1,270 297 128 3.0 227 0.08 2.52 NA NA NA 1.65 840 NA 380
<br /> 10/24/2011 6.84 ND 3,347 0.29 354 2,070 1,260 293 129 4.0 196 0.07 2.79 NA NA NA 1.66 800 NA 350
<br /> 1/26/2012 6.88 2 3,564 0.19 196 2,250 1,360 316 138 4.0 216 NO 1.84 NA NA NA 1.73 910 NA 400
<br /> 4/25/2012 6.95 8 3,390 0.79 92 2,100 1,260 293 128 3.0 172 NO 1.38 NA NA NA 1.66 850 NA 350
<br /> 4/25/2012 6.95 23 3,390 0.79 92 2,120 1,260 292 130 3.0 181 NO 1.55 NA NA NA 1.70 850 NA 350
<br /> 7/25/2012 7.09 22 3,577 0.86 9 2,270 1,360 314 141 3.0 200 NO 2.26 NA NA NA 1.85 880 NA 360
<br /> 10/22/2012 7.04 13 3,918 0.32 222 2,370 1,380 319 142 3.0 253 NO 2.87 NA NA NA 1.82 840 NA 420
<br /> 1/29/2013 7.03 ND 3,998 0.27 74 2,330 1,380 315 145 4.0 264 NO 2.31 NA NA NA 1.95 990 NA 480
<br /> 4/25/2013 7.06 ND 3,993 0.82 163 2,550 1,570 364 160 4.0 291 NO 0.40 NA NA NA 1.96 1,060 NA 470
<br /> 7/30/2013 7.15 4.5 4,156 0.20 250 2,360 1,390 316 147 3.0 306 NO 3.21 NA NA NA 1.66 960 NA 520
<br /> 111//18/20013 7.78 1408 3736 0.74 203 23 3 2 5326 4.00 3193 NO 3.517 NA NAA NAA 128 9200 NAA 470
<br /> 1 0 4 2 ND 32 NA N N 1.2 5 N8/23 17 3,73 74 23 2,420 1,20 8
<br /> 460
<br /> NO is"not detected".
<br /> NA is"not analyzed".
<br /> River Islands-MWR-27 River Islands-MWR-27
<br /> Total Dissolved Solids NOs+NOt Nitrogen
<br /> 5,000 20
<br /> 4,000 E 15
<br /> 6i 3,000 Z
<br /> E m 10
<br /> G 2,000 C
<br /> 1,000 z5
<br /> O
<br /> 0 Z 0
<br /> °�,'44494444447 7 7 7 7 7 7 7 77c�
<br /> Date Date
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 229 of 281 EKI B90088.03
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