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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-23
<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 7.15 1,600 3,700 -- -- 2,100 NA 210 130 4.3 330 0.38 2.0 0.039 ND ND 2.0 840 ND 530
<br /> 11/28/2005 7.09 11 3,700 -- - 2,300 NA 210 120 3.1 340 0.60 1.9 0.025 NO ND 2.1 830 0.29 570
<br /> 11/28/2005 7.07 13 3,700 -- - 2,200 NA 200 120 3.2 350 0.70 1.9 0.024 ND ND 2.1 820 0.25 560
<br /> 2/7/2006 6.99 ND 3,500 - - 2,200 NA 230 130 2.3 320 0.99 2.2 0.029 NO ND 2.1 850 0.29 600
<br /> 2/7/2006 7.11 ND 3,500 - - 2,200 NA 230 130 2.3 330 1.0 2.3 0.030 ND ND 2.1 840 ND 600
<br /> 5/1/2006 7.02 ND 2,700 - - 1,700 850 170 96 1.5 280 2.4 3.2 0.042 ND ND 1.7 620 0.24 330
<br /> 8/3/2006 6.42 ND 3,369 0.18 fit 2,400 970 200 120 3.4 340 0.22 2.3 0.035 0.0028 ND 1.8 720 0.12 440
<br /> 10/25/2006 6.65 80 3,340 0.29 23 2,400 650 190 110 3.3 310 0.52 1.5 0.035 0.0058 0.0021 1.9 710 0.14 430
<br /> 1/29/2007 7.19 ND 3,389 0.31 57 2,800 880 180 110 2.5 310 0.22 1.5 0.028 0.0029 ND 1.6 680 0.14 390
<br /> 1/29/2007 7.19 NO 3,389 0.31 57 2,100 900 180 110 2.3 320 0.27 1.6 0.028 0.0029 ND 1.6 700 0.13 410
<br /> 4/30/2007 6.62 ND 3,286 0.53 51 1,900 900 180 110 4.4 310 0.05 1.1 0.029 0.0052 ND 1.8 710 0.11 440
<br /> 8/1/2007 6.83 4 3,503 0.90 23 2,500 1,000 210 120 3.9 330 0.15 1.1 0.034 0.0036 ND 1.9 830 0.15 540
<br /> 8/1/2007 6.83 ND 3,503 0.90 23 2,600 1,000 210 120 3.3 320 0.14 1.1 0.033 0.0033 ND 1.9 800 0.16 530
<br /> 11/6/2007 7.00 ND 4,252 0.36 50 2,800 1,300 260 150 3.8 400 0.026 1.0 0.045 0.0039 ND 2.3 980 0.22 620
<br /> 2/6/2008 6.70 ND 4,400 0.90 103 2,900 1,300 250 150 2.7 390 ND 1.1 0.038 0.0070 ND 2.1 970 0.17 650
<br /> 2/6/2008 6.70 NO 4,400 0.90 103 2,900 1,300 250 150 2.7 390 ND 0.98 0.038 0.0069 ND 2.1 960 0.17 650
<br /> 4/24/2008 6.80 ND 4,139 0.64 123 2,800 1,200 240 150 2.0 370 0.030 1.3 0.037 0.0068 ND 2.2 910 0.12 600
<br /> 4/24/2008 6.80 ND 4,139 0.64 123 2,900 1,200 250 150 2.0 360 0.031 ND ND ND ND 2.2 910 0.12 590
<br /> 8/20/2008 6.85 ND 4,380 0.64 130 3,200 1,300 260 150 2.0 400 0.01 1.2 NA NA NA 2.6 1,100 NA 700
<br /> 8/20/2008 6.85 ND 4,380 0.64 130 3,200 1,300 260 160 2.0 400 ND 1.2 NA NA NA 2.6 1,100 NA 690
<br /> 11/18/2008 6.80 ND 4,356 0.60 109 2,700 1,300 260 160 2.2 430 0.030 1.3 NA NA NA 2.4 940 NA 630
<br /> 2/12/2009 5.24 ND 4,121 0.67 -23 2,000 1,200 240 150 1.7 380 0.048 1.4 NA NA NA 2.3 900 NA 580
<br /> 4/16/2009 6.77 ND 4,113 0.35 112 2,700 1,200 250 150 2.1 400 0.020 1.3 NA NA NA 2.3 950 NA 610
<br /> 8/3/2009 6.86 ND 4,158 0.65 120 2,610 1,240 254 147 2.0 452 0.07 1.13 NA NA NA 2.26 960 NA 650
<br /> 10/26/2009 6.90 ND 4,211 0.70 33 2,580 1,240 250 150 2.0 435 0.09 1.44 NA NA NA 2.31 1,010 NA 680
<br /> 1/26/2010 7.2 ND 4,221 0.90 105 2,830 1,210 244 146 2.0 350 ND 1.52 NA NA NA 2.15 970 NA 670
<br /> 5/5/2010 6.90 ND 4,407 1.81 178 2,380 1,240 251 149 2.0 362 ND 1.20 NA NA NA 1.76 890 NA 550
<br /> 8/26/2010 6.76 ND 3,896 0.50 89 2,540 1,300 268 153 2.0 424 0.14 1.26 NA NA NA 2.05 1,000 NA 660
<br /> 8/26/2010 6.76 ND 3,896 0.50 89 2,670 1,270 262 151 2.0 435 0.13 1.26 NA NA NA 2.12 990 NA 660
<br /> 10/28/2010 6.91 ND 3,930 1.02 121 2,510 2,510 253 140 2.0 462 0.13 1.62 NA NA NA 1.99 950 NA 600
<br /> 1/17/2011 6.79 ND 4,196 0.24 105 2,400 1,230 258 142 2.5 428 ND 1.76 NA NA NA 2.15 988 NA 619
<br /> 1/17/2011 6.79 ND 4,196 0.24 105 2,380 1,210 248 143 2.0 380 0.16 1.56 NA NA NA 2.05 970 NA 610
<br /> 4/18/2011 6.54 ND 3,395 0.18 128 2,070 970 203 114 2.0 360 0.05 1.82 NA NA NA 1.95 810 NA 470
<br /> 8/16/2011 6.72 ND 4,133 3.37 122 2,580 1,250 268 142 2.0 434 0.10 1.07 NA NA NA 2.06 1,010 NA 630
<br /> 8/16/2011 6.72 ND 4,133 3.37 122 2,730 1,260 268 144 2.0 451 0.10 1.08 NA NA NA 2.07 1,000 NA 630
<br /> 10/25/2011 6.90 ND 4,160 0.89 481 2,540 1,190 249 139 2.0 371 0.06 0.89 NA NA NA 2.23 1,120 NA 750
<br /> 10/25/2011 6.90 ND 4,160 0.89 481 2,510 1,190 244 141 2.0 362 ND 0.94 NA NA NA 2.14 1,030 NA 690
<br /> 1/27/2012 6.80 ND 3,735 0.38 201 2,330 1,250 255 150 2.0 428 ND 1.17 NA NA NA 2.07 910 NA 590
<br /> 1/27/2012 6.80 ND 3,735 0.38 201 2,340 1,210 250 143 2.0 389 0.05 1.24 NA NA NA 2.17 890 NA 580
<br /> 4/23/2012 6.65 ND 3,692 0.38 131 2,330 1,130 236 132 2.0 419 ND 1.13 NA NA NA 1.64 920 NA 580
<br /> 412312.12 fi.fi5 ND 3,692 0.38 131 2,210 1,090 228 127 2.0 405 ND 1.27 NA NA NA 1.90 870 NA 530
<br /> NO is"not detected".
<br /> NA is"not analyzed".
<br /> River Islands-MWR-23 River Islands-MWR-23
<br /> Total Dissolved Solids NO3+NO2 Nitrogen
<br /> 5,000 20
<br /> 4,000
<br /> E 15
<br /> 3,000 z
<br /> E m 10
<br /> 2,000 G
<br /> H z
<br /> 1,000 5
<br /> O
<br /> z
<br /> 0 0
<br /> o o
<br /> Date Data
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 213 of 281 EKI B90088.03
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