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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 /> MWM-23
<br /> Total
<br /> Data Coliform EC DO ORP Hard- Calcium Magnesium Potassium Sodium Manganese Barium Nickel Bromide Chloride Fluoride Sulfate
<br /> Sampled pH Bact1eria 00 (uS/cm) (mg/L) (mV) TDS(mg/L) nesL (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 /> mg/)
<br /> mL
<br /> 7/5/2005 7.37 >1,600 4,100 -- - 3,700 NA 290 152 7.2 848 ND 2.7 0.163 ND ND 3.1 940 ND 1,100
<br /> 7/19/2005 7.38 30 4,200 - - 3,700 NA 270 130 7.1 840 ND 2.3 0.14 ND ND 3.0 900 ND 1,000
<br /> 11/1/2005 7.25 2 5,233 0.05 - 3,100 1,100 220 130 6.1 830 NO 2.0 0.070 0.011 NO 3.3 920 0.43 1,000
<br /> 2/6/2006 7.37 ND 4,091 0.10 86 2,900 770 160 89 11 690 ND 1.2 0.046 0.010 ND 3.6 680 0.62 770
<br /> 5/2/2006 7.17 4 5,144 0.09 97 2,900 860 180 100 7.3 750 ND 0.89 0.049 0.010 NO 2.8 670 0.61 800
<br /> 7/31/2006 7.04 ND 3,199 0.09 101 2,000 510 110 59 5.6 540 ND 1.0 0.034 0.0035 ND 2.2 490 0.52 560
<br /> 10/23/2006 6.89 23 2,990 0.05 173 1,900 480 100 55 5.3 540 ND 0.65 0.039 0.0077 0.0027 2.0 440 0.61 450
<br /> 1/31/2007 7.32 ND 3,687 0.32 134 2,100 520 110 59 3.3 660 ND 0.35 0.043 0.0026 ND 2.2 590 0.37 600
<br /> 5/1/2007 7.43 ND 3,128 1.32 134 1,700 370 80 41 3.2 530 NO 0.19 0.032 0.0019 ND 1.8 520 0.47 420
<br /> 7/30/2007 7.28 2 2,952 1.24 25 2,100 340 75 36 2.3 520 ND 0.47 0.032 0.0023 ND 1.9 520 0.55 410
<br /> 11/7/2007 7.40 8 2,989 0.48 39 1,800 300 65 33 3.8 580 NO 0.51 0.036 0.0021 ND 2.0 490 0.70 380
<br /> 2/8/2008 7.58 ND 2,944 0.99 118 2,000 250 55 28 3.0 590 ND 0.23 0.029 0.0027 ND 1.9 470 0.62 380
<br /> 4/28/2008 7.44 ND 3,239 0.45 158 2,000 310 68 35 2.5 590 NO 0.27 0.036 0.0033 ND 2.2 590 0.42 430
<br /> 4/28/2008 7.44 ND 3,239 0.45 158 1,900 320 70 36 2.6 590 ND 0.29 0.036 0.0033 ND 2.2 580 0.42 420
<br /> 8/18/2008 7.56 NO 2,770 0.30 130 1,400 290 63 32 3.4 490 ND 0.52 NA NA NA 2.3 480 NA 400
<br /> 11/24/2008 7.61 4 2,536 0.27 79 1,600 230 49 26 2.1 480 ND 0.36 NA NA NA 2.2 400 NA 320
<br /> 2/17/2009 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
<br /> 4/13/2009 7.67 8 2,611 0.21 124 1,600 230 48 26 1.5 480 ND 0.26 NA NA NA 2.00 360 NA 320
<br /> 7/28/2009 7.60 2 2,407 2.93 163 1,450 200 44 21 2.0 476 ND 0.34 NA NA NA 1.73 360 NA 350
<br /> 10/20/2009 8.10 4 2,353 0.50 111 1,510 190 42 21 2.0 532 NO 0.41 NA NA NA 1.83 380 NA 350
<br /> 1/26/2010 8.04 ND 2,332 0.45 141 1,530 210 45 23 2.0 414 NO 0.26 NA NA NA 1.73 380 NA 350
<br /> 5/4/2010 7.60 2 2,761 0.27 63 1,890 360 78 41 3.0 524 NO 0.19 NA NA NA 1.85 510 NA 410
<br /> 8/24/2010 7.47 ND 3,153 0.12 100 2,040 370 81 41 3.0 667 0.06 0.58 NA NA NA 1.93 550 NA 440
<br /> 10/27/2010 7.45 ND 3,550 0.46 297 2,180 440 96 49 3.0 709 NO 0.87 NA NA NA 1.87 580 NA 450
<br /> 10/27/2010 7.45 2 3,540 0.46 297 2,190 450 98 51 3.0 712 NO 0.89 NA NA NA 1.85 570 NA 450
<br /> 1/26/2011 7.38 ND 3,654 0.28 290 2,250 530 111 fit 3.0 565 NO 0.62 NA NA NA 2.08 660 NA 500
<br /> 4/21/2011 7.40 2 3,714 0.28 167 2,250 470 101 54 3.0 724 NO 0.43 NA NA NA 1.95 580 NA 460
<br /> 4/21/2011 7.40 ND 3,714 0.28 167 2,250 460 97 52 3.0 722 NO 0.48 NA NA NA 2.21 620 NA 500
<br /> 8/17/2011 7.42 ND 2,932 1.99 127 1,730 260 56 29 2.0 617 0.05 0.37 NA NA NA 1.74 460 NA 380
<br /> 10/26/2011 7.62 ND 2,932 0.11 337 1,660 260 58 29 3.0 468 0.06 0.51 NA NA NA 2.08 420 NA 410
<br /> 1/25/2012 7.57 ND 2,655 0.41 64 1,550 240 50 27 2.0 553 NO 0.23 NA NA NA 2.03 430 NA 380
<br /> 5/1/2012 7.56 ND 2,490 2.86 96 1,450 190 40 22 2.0 483 ND 0.18 NA NA NA 1.69 380 NA 340
<br /> 7/26/2012 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
<br /> 10/24/2012 7.66 ND 2,467 0.20 120 1,450 160 35 18 3.0 511 ND 0.39 NA NA NA 1.62 340 NA 320
<br /> 1/30/2013 7.64 ND 3,599 0.19 148 2,140 370 78 43 4.0 769 ND 0.28 NA NA NA 2.21 670 NA 500
<br /> 4/29/2013 7.56 ND 3,386 0.07 248 2,010 360 76 41 3.0 952' ND 0.16 NA NA NA 2.08 620 NA 460
<br /> 7/31/2013 7.83 ND 3,299 0.20 32 1,960 290 61 33 2.0 727 ND 0.66 NA NA NA 1.76 560 NA 450
<br /> 11/20/2013 7.53 ND 3,910 0.18 53 2,340 360 77 40 3.0 776 ND 0.86 NA NA NA 1.70 700 NA 580
<br /> 2/3/2014 7.81 ND 4,014 0.41 89 2,430 350 74 41 3.0 7' NO 0.31 NA NA NA 2.22 640 NA 550
<br /> 4/23/2014 145 ND 4,151 0.31 191 2,600 400 85 45 3.0 817 0.1 0.45 NA NA NA 2.36 680 NA 587
<br /> NO is"not detected".
<br /> NA is"not analyzed".
<br /> NS denotes"not sampled".Well MWM-23 was in accessible during tat quarter 2009 monitoring work.
<br /> denotes average of lab reported values.
<br /> City of Lathrop-MWM-23 City of Lathrop-MWM-23
<br /> Total Dissolved Solids NOs+NO,Nitrogen
<br /> 5,000 20
<br /> 4,000
<br /> �15
<br /> 3,000 E
<br /> E 10
<br /> G 2,000
<br /> r
<br /> 1,000 5
<br /> 0 0in
<br /> 0$o
<br /> Date Date
<br /> EKI Environment&Water,Inc.
<br /> July 2023 Page 91 of 281 EKI B90088.03
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