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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-25
<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 7.00 300 3,100 1,800 NA 180 100 5.7 270 1.2 9.3 0.051 NO ND 2.2 800 0.20 230
<br /> 11/28/2005 6.88 23 3,000 2,000 NA 160 79 3.2 260 1.5 9.0 0.053 ND ND 2.3 770 0.14 260
<br /> 2/7/2006 6.76 ND 3,000 1,900 NA 200 100 3.2 270 1.3 11 0.071 ND ND 2.3 820 ND 240
<br /> 5/1/2006 6.75 ND 2,800 2,200 860 170 90 2.7 250 0.97 9.3 0.068 ND ND 2.2 730 0.22 200
<br /> 8/3/2006 6.13 50 2,904 0.11 44 2,200 860 180 100 4.0 270 1.4 9.7 0.064 0.0033 ND 2.2 750 0.14 210
<br /> 8/3/2006 6.13 23 2,904 0.11 44 2,200 820 170 94 3.2 320 1.3 9.7 0.063 0.0032 NO 2.1 740 0.15 210
<br /> 10/25/2006 6.27 >1,600 2,909 0.16 16 2,000 840 180 97 3.8 270 1.7 9.2 0.075 0.0058 0.0030 2.2 700 0.14 210
<br /> 10/25/2006 6.27 220 2,909 0.16 16 6,000 870 180 100 3.5 260 1.8 9.1 0.072 0.0056 0.0033 2.2 740 0.40 220
<br /> 1/29/2007 6.65 50 2,939 0.29 11 1,900 810 170 92 3.4 280 1.5 11 0.067 0.0027 ND 1.9 750 0.16 230
<br /> 4/30/2007 6.45 4 2,862 0.14 15 1,900 780 170 88 5.4 260 1.6 11 0.068 0.0029 ND 2.1 750 0.14 210
<br /> 4/30/2007 6.45 ND 2,862 0.14 15 2,000 790 170 88 5.6 260 1.4 11 0.066 0.0031 ND 2.2 760 0.15 220
<br /> 8/1/2007 6.36 23 2,850 1.10 3 2,000 770 170 84 4.0 240 1.7 11 0.069 0.0028 ND 2.1 790 0.18 220
<br /> 11/5/2007 6.40 ND 2,867 0.21 6 2,000 800 170 89 3.1 260 1.7 8.9 0.072 0.0026 ND 2.1 740 0.15 210
<br /> 11/5/2007 6.40 NO 2,867 0.21 6 1,900 790 170 88 4.3 260 1.8 8.7 0.071 0.0024 ND 2.1 750 0.16 210
<br /> 2/6/2008 6.30 ND 2,965 0.30 38 2,000 800 170 91 3.5 260 1.5 8.8 0.074 0.0045 ND 1.9 740 0.19 230
<br /> 4/24/2008 6.51 ND 2,943 0.22 40 2,300 570 130 58 1.7 180 0.02 10 0.072 0.0043 0.0024 2.0 770 0.17 250
<br /> 8/20/2008 6.38 ND 2,945 0.20 13 2,200 830 180 93 3.1 250 2.1 10 NA NA NA 2.0 790 NA 270
<br /> 11/18/2008 6.30 70 2,924 0.20 1 1,900 830 180 93 3.3 250 2.3 10 NA NA NA 2.0 710 NA 240
<br /> 11/18/2008 6.30 80 2,924 0.20 1 1,800 810 170 93 3.1 250 2.4 9.8 NA NA NA 2.0 730 NA 240
<br /> 2/12/2009 6.45 2 2,847 0.15 23 1,700 810 170 93 2.8 250 1.8 9.2 NA NA NA 1.9 700 NA 240
<br /> 4/21/2009 6.36 ND 2,931 0.00 21 1,900 810 170 94 3.4 250 1.9 9.4 NA NA NA 1.9 710 NA 250
<br /> 8/3/2009 7.54 ND 2,955 0.34 11 2,600 850 187 94 3.0 280 2.7 11.0 NA NA NA 1.87 770 NA 274
<br /> 10/26/2009 6.50 2 3,024 0.50 -6 1,690 850 186 95 3.0 282 2.7 10.1 NA NA NA 1.95 780 NA 290
<br /> 1/26/2010 6.70 ND 3,090 1.00 91 1,720 810 173 92 3.0 242 0.96 9.03 NA NA NA 1.51 750 NA 240
<br /> 5/5/2010 6.50 ND 2,878 0.20 30 1,760 870 186 98 3.0 256 1.1 8.67 NA NA NA 1.81 740 NA 260
<br /> 8/27/2010 6.29 ND 2,794 0.21 -2 1,770 910 200 100 4.0 292 2.5 10.9 NA NA NA 1.78 760 NA 280
<br /> 10/29/2010 6.18 ND 2,910 0.33 8 1,890 870 194 94 3.0 279 2.7 10.9 NA NA NA 1.81 760 NA 280
<br /> 1/17/2011 6.35 ND 2,969 0.24 183 1,670 880 195 95 3.9 281 ND 11.5 NA NA NA 1.75 792 NA 295
<br /> 4/18/2011 6.31 ND 2,891 0.16 21 1,850 900 199 99 4.0 292 1.5 10.5 NA NA NA 2.04 880 NA 370
<br /> 8/16/2011 6.50 ND 2,993 2.02 23 1,780 870 197 92 4.0 280 2.9 10.9 NA NA NA 1.85 780 NA 290
<br /> 10/25/2011 6.35 ND 3,233 0.19 274 1,940 870 197 92 4.0 259 3.2 12.1 NA NA NA 2.10 820 NA 310
<br /> 1/27/2012 6.31 ND 2,939 0.11 98 1,810 900 196 99 4.0 318 2.9 11.0 NA NA NA 1.94 810 NA 300
<br /> 4/23/2012 6.26 ND 3,174 0.28 2 1,880 930 207 100 4.0 301 2.3 11.3 NA NA NA 1.59 810 NA 300
<br /> 7/24/2012 6.38 ND 3,248 1.18 -37 1,930 920 198 104 3.0 706 2.2 11.1 NA NA NA 1.88 810 NA 310
<br /> 10/23/2012 6.37 ND 3,423 0.31 -24 2,060 990 215 110 4.0 300 2.1 12.2 NA NA NA 1.97 790 NA 320
<br /> 10/23/2012 6.37 ND 3,423 0.31 -24 2,010 980 214 109 3.0 305 2.2 12.3 NA NA NA 2.00 800 NA 320
<br /> 1/28/2013 6.51 ND 4,045 0.17 129 2,300 1,240 261 143 4.0 351 0.13 12.7 NA NA NA 2.36 1,030 NA 420
<br /> 4/26/2013 6.57 ND 3,932 0.16 120 2,440 1,280 279 143 4.0 344 0.47 13.3 NA NA NA 2.41 1,040 NA 430
<br /> 7/29/2013 6.69 2 3,826 0.38 90 2,210 1,140 236 134 3.0 358 0.80 12.8 NA NA NA 1.96 980 NA 410
<br /> 1242013 6.5697 ND 4, 97 2,4 3 2976 48 4.0 37 4 12 NA NA NA 231 ,7900 NA 421/1//014 4 15 0 ND 12.2 NA NA NA 2.60 12 NA 620092 ND 4786 0. 7 2880 1,40 414 NO is"not detected".
<br /> NA is"not analyzed".
<br /> River Islands-MWR-25 River Islands-MWR-25
<br /> Total Dissolved Solids NO NO,Nitrogen
<br /> 6,000 20
<br /> 5,000
<br /> 15
<br /> 4,000
<br /> E
<br /> � z
<br /> E 3,000 n 10
<br /> 0 2,000 O
<br /> z 5
<br /> 1,000 0
<br /> z
<br /> 0 p
<br /> 0�,'444444444���������m� rn`BrmmSio
<br /> IIAI-,I I A I I I I I A IDate »»»�-, -,�-�-, -,Date
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 221 of 281 EKI B90088.03
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