Agenda packet — Arroyo Grande City Council, August 9, 2022 (part 3 of 3)

Appendix A: NCMA Sentry Wells Water Level Data
Well Common
Name Aquifer Date Depth to Water(feet)
Surface
Completion RP Description RP Elev,feet NAVD88
Groundwater
Elevation
(feet VD88)
12N/36W-36L02 Oceano Dunes Deep Careaga 4/23/1999 10.80 Flush Top Flush Mount 23.98 13.18 12N/36W-36L02 Oceano Dunes Deep Careaga 10/29/1998 10.19 Flush Top Flush Mount 23.98 13.79 12N/36W-36L02 Oceano Dunes Deep Careaga 10/24/1996 13.80 Flush Top Flush Mount 23.98 10.18 12N/36W-36L02 Oceano Dunes Deep Careaga 10/26/1995 14.50 Flush Top Flush Mount 23.98 9.48 12N/36W-36L02 Oceano Dunes Deep Careaga 4/19/1995 6.25 Flush Top Flush Mount 23.98 17.73 12N/36W-36L02 Oceano Dunes Deep Careaga 11/1/1994 15.50 Flush Top Flush Mount 23.98 8.48 12N/36W-36L02 Oceano Dunes Deep Careaga 4/11/1994 9.38 Flush Top Flush Mount 23.98 14.60 12N/36W-36L02 Oceano Dunes Deep Careaga 10/20/1993 16.10 Flush Top Flush Mount 23.98 7.88 12N/36W-36L02 Oceano Dunes Deep Careaga 5/3/1993 11.60 Flush Top Flush Mount 23.98 12.38 12N/36W-36L02 Oceano Dunes Deep Careaga 4/20/1993 9.50 Flush Top Flush Mount 23.98 14.48 12N/36W-36L02 Oceano Dunes Deep Careaga 11/4/1992 16.90 Flush Top Flush Mount 23.98 7.08 12N/36W-36L02 Oceano Dunes Deep Careaga 4/30/1992 11.50 Flush Top Flush Mount 23.98 12.48 12N/36W-36L02 Oceano Dunes Deep Careaga 10/11/1991 16.80 Flush Top Flush Mount 23.98 7.18 12N/36W-36L02 Oceano Dunes Deep Careaga 4/16/1991 10.83 Flush Top Flush Mount 23.98 13.15 12N/36W-36L02 Oceano Dunes Deep Careaga 10/11/1990 17.05 Flush Top Flush Mount 23.98 6.93 12N/36W-36L02 Oceano Dunes Deep Careaga 4/24/1990 11.39 Flush Top Flush Mount 23.98 12.59 12N/36W-36L02 Oceano Dunes Deep Careaga 10/12/1989 13.54 Flush Top Flush Mount 23.98 10.44 12N/36W-36L02 Oceano Dunes Deep Careaga 4/20/1989 8.90 Flush Top Flush Mount 23.98 15.08 12N/36W-36L02 Oceano Dunes Deep Careaga 10/25/1988 12.98 Flush Top Flush Mount 23.98 11.00 12N/36W-36L02 Oceano Dunes Deep Careaga 4/21/1988 8.40 Flush Top Flush Mount 23.98 15.58 12N/36W-36L02 Oceano Dunes Deep Careaga 10/19/1987 11.40 Flush Top Flush Mount 23.98 12.58 12N/36W-36L02 Oceano Dunes Deep Careaga 8/5/1987 11.40 Flush Top Flush Mount 23.98 12.58 12N/36W-36L02 Oceano Dunes Deep Careaga 4/13/1987 3.24 Flush Top Flush Mount 23.98 20.74 12N/36W-36L02 Oceano Dunes Deep Careaga 10/31/1986 7.51 Flush Top Flush Mount 23.98 16.47 12N/36W-36L02 Oceano Dunes Deep Careaga 4/27/1986 3.56 Flush Top Flush Mount 23.98 20.42 12N/36W-36L02 Oceano Dunes Deep Careaga 4/4/1985 4.10 Flush Top Flush Mount 23.98 19.88 12N/36W-36L02 Oceano Dunes Deep Careaga 10/24/1984 8.32 Flush Top Flush Mount 23.98 15.66 12N/36W-36L02 Oceano Dunes Deep Careaga 5/4/1982 3.12 Flush Top Flush Mount 23.98 20.86 12N/36W-36L02 Oceano Dunes Deep Careaga 10/19/1981 11.75 Flush Top Flush Mount 23.98 12.23 12N/36W-36L02 Oceano Dunes Deep Careaga 4/21/1981 4.14 Flush Top Flush Mount 23.98 19.84 12N/36W-36L02 Oceano Dunes Deep Careaga 10/20/1980 10.40 Flush Top Flush Mount 23.98 13.58 12N/36W-36L02 Oceano Dunes Deep Careaga 12/11/1979 9.30 Flush Top Flush Mount 23.98 14.68 12N/36W-36L02 Oceano Dunes Deep Careaga 11/13/1979 10.00 Flush Top Flush Mount 23.98 13.98 12N/36W-36L02 Oceano Dunes Deep Careaga 4/16/1979 5.46 Flush Top Flush Mount 23.98 18.52 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WL_SentryWells.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Level Data
Well Common
Name Aquifer Date Depth to Water(feet)
Surface
Completion RP Description RP Elev,feet NAVD88
Groundwater
Elevation
(feet VD88)
12N/35W-32C03 County MW-3 Paso Robles 10/5/2021 46.24 Flush Top Flush Mount 47.70 1.46 12N/35W-32C03 County MW-3 Paso Robles 7/13/2021 44.75 Flush Top Flush Mount 47.70 2.95 12N/35W-32C03 County MW-3 Paso Robles 4/6/2021 38.84 Flush Top Flush Mount 47.70 8.86 12N/35W-32C03 County MW-3 Paso Robles 1/6/2021 39.92 Flush Top Flush Mount 47.70 7.78 12N/35W-32C03 County MW-3 Paso Robles 10/7/2020 43.03 Flush Top Flush Mount 47.70 4.67 12N/35W-32C03 County MW-3 Paso Robles 7/6/2020 41.31 Flush Top Flush Mount 47.70 6.39 12N/35W-32C03 County MW-3 Paso Robles 4/7/2020 31.48 Flush Top Flush Mount 47.70 16.22 12N/35W-32C03 County MW-3 Paso Robles 1/7/2020 35.29 Flush Top Flush Mount 47.70 12.41 12N/35W-32C03 County MW-3 Paso Robles 10/9/2019 42.42 Flush Top Flush Mount 47.70 5.28 12N/35W-32C03 County MW-3 Paso Robles 7/9/2019 37.20 Flush Top Flush Mount 47.70 10.50 12N/35W-32C03 County MW-3 Paso Robles 4/9/2019 32.50 Flush Top Flush Mount 47.70 15.20 12N/35W-32C03 County MW-3 Paso Robles 1/8/2019 35.45 Flush Top Flush Mount 47.70 12.25 12N/35W-32C03 County MW-3 Paso Robles 10/9/2018 43.85 Flush Top Flush Mount 47.70 3.85 12N/35W-32C03 County MW-3 Paso Robles 7/10/2018 40.00 Flush Top Flush Mount 47.70 7.70 12N/35W-32C03 County MW-3 Paso Robles 4/10/2018 32.80 Flush Top Flush Mount 47.70 14.90 12N/35W-32C03 County MW-3 Paso Robles 1/10/2018 35.10 Flush Top Flush Mount 47.70 12.60 12N/35W-32C03 County MW-3 Paso Robles 10/10/2017 42.05 Flush Top Flush Mount 47.70 5.65 12N/35W-32C03 County MW-3 Paso Robles 7/11/2017 38.34 Flush Top Flush Mount 47.70 9.36 12N/35W-32C03 County MW-3 Paso Robles 4/11/2017 28.44 Flush Top Flush Mount 47.70 19.26 12N/35W-32C03 County MW-3 Paso Robles 1/10/2017 34.85 Flush Top Flush Mount 47.70 12.85 12N/35W-32C03 County MW-3 Paso Robles 10/12/2016 47.49 Flush Top Flush Mount 47.70 0.21 12N/35W-32C03 County MW-3 Paso Robles 7/19/2016 44.51 Flush Top Flush Mount 47.70 3.19 12N/35W-32C03 County MW-3 Paso Robles 4/12/2016 36.41 Flush Top Flush Mount 47.70 11.29 12N/35W-32C03 County MW-3 Paso Robles 1/12/2016 36.48 Flush Top Flush Mount 47.70 11.22 12N/35W-32C03 County MW-3 Paso Robles 10/13/2015 51.21 Flush Top Flush Mount 47.70 -3.51 12N/35W-32C03 County MW-3 Paso Robles 7/14/2015 49.07 Flush Top Flush Mount 47.70 -1.37 12N/35W-32C03 County MW-3 Paso Robles 4/14/2015 44.00 Flush Top Flush Mount 47.70 3.70 12N/35W-32C03 County MW-3 Paso Robles 1/13/2015 38.90 Flush Top Flush Mount 47.70 8.80 12N/35W-32C03 County MW-3 Paso Robles 10/14/2014 50.50 Flush Top Flush Mount 47.70 -2.80 12N/35W-32C03 County MW-3 Paso Robles 7/29/2014 44.02 Flush Top Flush Mount 47.70 3.68 12N/35W-32C03 County MW-3 Paso Robles 6/4/2014 45.46 Flush Top Flush Mount 47.70 2.24 12N/35W-32C03 County MW-3 Paso Robles 4/15/2014 41.51 Flush Top Flush Mount 47.70 6.19 12N/35W-32C03 County MW-3 Paso Robles 1/14/2014 41.00 Flush Top Flush Mount 47.70 6.70 12N/35W-32C03 County MW-3 Paso Robles 10/14/2013 45.26 Flush Top Flush Mount 47.70 2.44 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WL_SentryWells.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Level Data
Well Common
Name Aquifer Date Depth to Water(feet)
Surface
Completion RP Description RP Elev,feet NAVD88
Groundwater
Elevation
(feet VD88)
12N/35W-32C03 County MW-3 Paso Robles 7/9/2013 43.83 Flush Top Flush Mount 47.70 3.87 12N/35W-32C03 County MW-3 Paso Robles 4/10/2013 37.89 Flush Top Flush Mount 47.70 9.81 12N/35W-32C03 County MW-3 Paso Robles 1/14/2013 32.26 Flush Top Flush Mount 47.70 15.44 12N/35W-32C03 County MW-3 Paso Robles 10/30/2012 40.05 Flush Top Flush Mount 47.70 7.65 12N/35W-32C03 County MW-3 Paso Robles 7/25/2012 38.62 Flush Top Flush Mount 47.70 9.08 12N/35W-32C03 County MW-3 Paso Robles 4/19/2012 23.02 Flush Top Flush Mount 47.70 24.68 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WL_SentryWells.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/12E-24B01 10/6/2021 2,900 1400 580 33 200 200 410 190 0.5 1.9 0.14 0.25 0.083 1.4 4.6 410 8.2 8.2 4,960 4 32S/12E-24B01 4/7/2021 2,800 1300 470 25 170 180 410 170 0.12 2 0.12 0.13 0.096 1.3 4.2 410 8.2 8.2 2.4 32S/12E-24B01 10/12/2020 3,100 1,400 520 28.0 180.0 180 420 210 0 2.00 0.12 0.300 0.110 1.30 3.80 420 0 0 4,840 2.0 32S/12E-24B01 4/22/2020 2,800 1,300 510 27.0 170.0 170 400 190 0 2.10 0.13 0.000 0.120 1.30 3.90 400 0 0 4,930 3.2 32S/12E-24B01 10/14/2019 3,100 1,300 540 29.0 180.0 180 410 180 0 1.90 0.15 0.150 0.012 1.30 3.70 410 0 0 4,900 2.7 32S/12E-24B01 4/10/2019 2,800 1,400 520 35 180 190 430 200 ND 2 0.15 ND 0.11 1.4 4.0 430 ND ND 5,260 2.1 32S/12E-24B01 10/9/2018 2,800 1,400 600 35 180 190 410 190 ND 2 0.15 ND 0.11 1.4 2.8 410 ND ND 5,040 22 32S/12E-24B01 4/11/2018 3,000 1,400 560 33 170 180 430 200 0.25 2.0 0.15 ND 0.11 1.4 5.1 430 ND ND 5,150 2.2 32S/12E-24B01 10/11/2017 3,100 1,400 590 36 180 190 430 190 ND 2.3 0.17 0.13 0.11 1.4 0.64 430 ND ND 5,180 1.7 32S/12E-24B01 4/11/2017 3,400 1,400 680 41 190 210 420 190 ND 2.4 0.16 0.17 0.11 1.6 4.7 420 ND ND 5,020 1.8 32S/12E-24B01 10/11/2016 3,100 1,400 700 44 210 220 450 190 0.26 2.1 0.18 ND 0.12 1.6 4.1 450 ND ND 5,020 1.3 32S/12E-24B01 4/12/2016 2,800 1,400 640 37 170 180 420 190 <0.48 2.2 0.16 <0.055 0.081 1.3 4.8 420 <8.2 <8.2 5,000 0.73 32S/12E-24B01 10/15/2015 3,230 230 560 34 160 170 413 42 <0.05 2.2 0.14 <0.10 0.091 1.1 0.68 413 <10 <10 4,880 0.54 32S/12E-24B01 4/15/2015 3,010 1,300 510 30 150 160 410 220 <0.05 2.9 0.15 <0.5 0.023 1.0 3.4 410 <10 <10 4,760 0.72 32S/12E-24B01 1/14/2015 2,980 1,300 520 30 150 170 400 210 <0.25 2.2 0.14 <0.5 <0.021 1.0 2.9 400 <10 <10 4,640 0.52 32S/12E-24B01 10/14/2014 3,160 1,100 530 32 150 170 390 180 0.32 2.2 0.16 <0.5 <0.01 1.1 <0.5 390 <10 <10 4,780 0.67 32S/12E-24B01 7/30/2014 2,950 1,300 520 29 140 170 440 190 <0.25 1.9 0.11 <0.5 0.03 1.1 2.6 440 <10 <10 4,830 0.62 32S/12E-24B01 4/16/2014 2,880 1,200 560 29 140 140 390 190 <0.05 2.2 0.130 <0.5 0.03 0.92 2.9 390 <10 <10 4,790 0.72 32S/12E-24B01 1/15/2014 2,870 1,300 540 30 140 160 380 214 <0.25 2.4 0.17 <0.5 <0.01 1.0 3.0 380 <10 <10 4,800 0.71 32S/12E-24B01 10/15/2013 2,860 1,200 560 31 150 160 380 200 <0.25 2.2 0.13 <0.5 <0.01 1.0 3.0 380 <10 <10 4,810 0.75 32S/12E-24B01 7/9/2013 2,960 1,300 560 32 150 160 395 215 <0.25 2.4 0.16 <0.5 <0.01 1.1 2.0 395 <10 <10 4,850 0.81 32S/12E-24B01 4/10/2013 2,920 1,300 540 30 140 150 410 220 <0.25 1.9 0.16 <0.1 <0.01 1.00 3.5 410 <10 <10 4,830 0.67 32S/12E-24B01 1/14/2013 2,630 1,300 540 30 140 140 410 220 <0.05 2.7 0.15 <0.1 <0.01 0.96 2.8 410 <10 <10 4,790 0.72 32S/12E-24B01 10/29/2012 2,950 1,200 590 34 150 160 360 200 <0.25 2.4 0.18 <0.5 <0.01 1.1 11 360 <10 <10 4,750 0.78 32S/12E-24B01 7/23/2012 3,010 1,400 530 30 120 130 397 210 <0.05 2.1 0.15 <0.1 0.041 0.86 3 397 <10 <10 4,720 1.4 32S/12E-24B01 4/18/2012 3,000 1,500 450 27 120 120 400 230 <0.1 2 0.13 0.13 <0.01 0.89 3.12 400 <10 <10 4,660 0.6 32S/12E-24B01 1/11/2012 2,750 1,200 520 30 140 140 400 170 <0.1 4 0.18 0.1 0.033 0.94 3.2 400 <10 <10 4,560 0.55 32S/12E-24B01 11/21/2011 2,740 1,200 410 25 130 120 380 200 <0.3 2.3 0.13 <0.6 0.053 0.9 2.73 380 <10 <10 4,470 0.7 32S/12E-24B01 7/25/2011 3,690 1,200 530 33 140 150 380 200.2 <0.05 1.8 0.14 <0.1 0.053 0.91 3.281 380 <5 <5 4,900 0.73 32S/12E-24B01 4/20/2011 2,810 1,214 500 27 140 130 400 216 <0.05 1.7 0.24 0.18 0.067 0.95 3.3 400 <2.0 <2.0 4,430 NA 32S/12E-24B01 1/24/2011 2,380 1,100 370 24 110 120 380 180 <0.15 1.8 0.16 <0.3 0.63 0.68 2.8 380 <2.0 <2.0 4,020 0.89 32S/12E-24B01 10/28/2010 2,330 960 390 25 140 140 350 160 <0.1 3.9 0.15 <0.1 NA 0.75 2.6 350 <10 <10 3,860 1.3 32S/12E-24B01 7/27/2010 616 43 52.5 6.21 115 44.7 341 160 < 0.10 2.9 0.063 < 0.10 0.11 0.274 0.18 341 < 1.0 < 1.0 1,000 9.34 32S/12E-24B01 4/27/2010 676 47 54.7 4.60 107 43.6 327 140 < 0.10 0.98 0.0714 < 0.10 < 0.10 0.0458 0.18 327 < 1.0 < 1.0 990 4.06 32S/12E-24B01 1/27/2010 694 55 56.2 6.80 123 43.2 340 150 0.40 1.7 0.12 < 0.10 0.33 0.875 0.19 340 < 1.0 < 1.0 1,000 16.6 32S/12E-24B01 10/19/2009 766 140 121 16.7 111 52.4 303 150 0.25 2.8 0.0959 0.11 < 0.10 0.208 0.47 303 < 1.0 < 1.0 1,200 7.79 32S/12E-24B01 8/20/2009 705 94 86.8 11.7 116 35.6 286 150 0.21 2.7 NA < 0.10 0.12 0.248 0.38 286 < 1.0 < 1.0 1,000 7.15 32S/12E-24B01 5/12/2009 695 100 82.1 13.2 108 45 288 150 NA NA NA 0.11 NA 0.66 0.29 288 < 1.0 < 1.0 1,100 23.9 32S/12E-24B01 3/26/1996 1,870 773 380 24.0 125 95 427 154 0.0452 NA 0.27 NA NA NA NA NA NA NA NA NA 32S/12E-24B01 6/9/1976 1,706 667 400 16.2 94 95 474 159 0.0904 NA 0.12 0.5 NA NA NA NA NA NA NA NA 32S/12E-24B01 1/17/1966 1,700 652 406 20.0 95 83 440 175 1 NA 0.07 0.3 NA NA NA NA NA NA NA NA \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/12E-24B02 10/6/2021 630 32 44 3.3 110 32 280 160 0.1 0.22 0.1 0.048 0.012 0.17 0.12 280 4.1 4.1 929 0.5 32S/12E-24B02 7/15/2021 560 30 44 3.3 110 34 320 160 0.024 0.4 0.042 0.043 0.014 0.17 0.096 320 4.1 4.1 949 0.47 32S/12E-24B02 4/7/2021 630 29 42 3.2 100 35 320 160 0.024 0.24 0.064 0.062 0.0099 0.16 0.11 320 4.1 4.1 0.45 32S/12E-24B02 1/7/2021 590 30 45 3.3 110 36 320 170 0.024 0.63 0.073 0.064 0.014 0.17 0.082 320 4.1 4.1 922 0.54 32S/12E-24B02 10/12/2020 700 31 46 3.6 120.0 36 320 160 0 0.21 0.07 0.054 0.014 0.18 0.10 320 0 0 936 0.5 32S/12E-24B02 7/7/2020 690 31 48 3.6 120.0 35 300 170 0 0.23 0.07 0.047 0.014 0.18 0.08 300 4 4 945 0.5 32S/12E-24B02 4/22/2020 560 31 41 3.4 100.0 32 330 160 0 0.28 0.06 0.026 0.014 0.16 0.00 330 0 0 960 0.5 32S/12E-24B02 1/15/2020 660 31 47 4.0 120.0 37 320 160 0 0.23 0.08 0.055 0.017 0.18 0.14 320 0 0 900 0.6 32S/12E-24B02 10/14/2019 700 30 45 3.7 110.0 35 310 160 0 0.10 0.08 0.046 0.110 0.18 0.00 310 0 0 931 0.6 32S/12E-24B02 7/10/2019 550 30 48 4.2 120.0 37 320 160 0 0.34 0.07 0.037 0.015 0.18 0.00 320 0 0 931 0.6 32S/12E-24B02 4/10/2019 620 31 42 3.6 110 35 320 160 ND 0.31 0.070 0.059 ND 0.17 0.130 320 ND ND 941 0.59 32S/12E-24B02 1/8/2019 630 30 43 3.6 110 35 310 160 ND 0.27 0.072 0.056 0.013 0.17 0.096 310 ND ND 938 0.59 32S/12E-24B02 10/9/2018 640 30 48 3.8 120 37 320 160 ND 0.34 0.068 0.025 0.013 0.18 0.06 320 ND ND 952 0.62 32S/12E-24B02 7/12/2018 620 29 46 3.7 120 36 320 150 ND 0.30 0.072 0.042 0.013 0.17 0.11 320 ND ND 962 0.69 32S/12E-24B02 4/11/2018 660 31 45 3.5 110 35 320 160 0.034 0.28 0.069 0.050 0.011 0.17 0.10 320 ND ND 942 0.58 32S/12E-24B02 1/12/2018 570 30 53 3.8 120 38 320 160 ND 0.32 0.071 0.068 0.015 0.18 0.11 320 ND ND 930 0.56 32S/12E-24B02 10/11/2017 670 31 45 3.7 120 38 330 160 ND 0.41 0.077 0.045 0.014 0.18 0.1 330 ND ND 962 0.74 32S/12E-24B02 7/12/2017 760 31 48 4 130 39 310 160 ND 0.18 0.072 0.04 0.015 0.2 0.12 310 ND ND 948 0.93 32S/12E-24B02 4/11/2017 630 34 46 3.7 120 35 310 170 ND 0.31 0.062 0.09. 0.017 0.17 0.12 310 ND ND 933 0.59 32S/12E-24B02 1/12/2017 660 34 47 3.7 120 36 320 170 ND 0.26 0.069 0.031 0.023 0.2 0.097 320 ND ND 938 0.79 32S/12E-24B02 10/11/2016 660 35 48 4 120 39 320 170 ND 0.26 0.069 0.038 0.023 0.18 0.12 320 ND ND 953 0.75 32S/12E-24B02 7/19/2016 660 36 50 3.9 120 38 320 160 <0.022 0.15 0.07 0.036 0.016 0.17 0.15 320 <4.1 <4.1 947 0.67 32S/12E-24B02 4/12/2016 640 35 48 3.8 110 37 300 160 <0.022 0.38 0.064 0.045 0.011 0.17 0.13 300 <4.1 <4.1 939 0.53 32S/12E-24B02 1/12/2016 570 38 48 3.8 110 36 290 170 <0.022 0.27 0.044 0.11 0.015 0.16 0.15 290 <4.1 <4.1 951 0.48 32S/12E-24B02 10/15/2015 650 34 41 3.8 100 33 306 160 <0.05 <1 0.054 <0.10 0.014 0.18 <0.10 306 <10 <10 950 0.72 32S/12E-24B02 7/15/2015 650 35 50 3.0 120 36 295 160 <0.05 <1 0.069 <0.1 0.01 0.16 <0.1 295 <10 <10 950 0.69 32S/12E-24B02 4/15/2015 620 35 40 3.4 100 31 300 170 <0.05 <1 0.066 <0.1 0.01 0.14 <0.1 300 <10 <10 900 0.45 32S/12E-24B02 1/14/2015 640 36 41 3.3 110 32 290 170 <0.05 <1 0.062 <0.1 <0.01 0.14 <0.1 290 <10 <10 900 0.48 32S/12E-24B02 10/14/2014 630 30 41 3.9 100 32 290 140 <0.05 <1 0.065 <0.1 <0.01 0.15 <0.1 290 <10 <10 940 0.44 32S/12E-24B02 7/29/2014 620 33 42 3.5 100 33 300 150 <0.05 <1 <0.1 <0.1 <0.01 0.14 <0.1 300 <10 <10 940 0.37 32S/12E-24B02 4/16/2014 630 32 43 4.3 88 28 300 150 <0.05 <1 0.067 <0.1 <0.01 0.12 <0.1 300 <10 <10 940 0.32 32S/12E-24B02 1/15/2014 630 33 46 3.9 100 34 290 165 <0.05 <1 <0.05 <0.1 <0.01 0.14 <0.1 290 <10 <10 940 0.37 32S/12E-24B02 10/15/2013 630 30 44 3.8 98 32 290 170 <0.05 <1 <0.05 <0.1 <0.01 0.13 <0.1 290 <10 <10 920 0.39 32S/12E-24B02 7/9/2013 630 30 43 3.9 110 33 295 170 <0.05 <1 0.076 <0.1 <0.01 0.14 <0.1 295 <10 <10 940 0.6 32S/12E-24B02 4/10/2013 630 31 44 4 100 32 310 160 <0.05 <1 0.08 <0.1 <0.01 0.13 <0.1 310 <10 <10 940 0.41 32S/12E-24B02 1/14/2013 620 30 43 4 97 31 305 170 <0.05 <1 0.079 <0.1 <0.01 0.12 <0.1 305 <10 <10 950 0.72 32S/12E-24B02 10/29/2012 650 29 45 4.2 100 32 280 160 <0.05 <1 0.074 0.14 <0.01 0.13 <0.1 280 <10 <10 950 0.56 32S/12E-24B02 7/23/2012 650 35 45 4.3 87 27 297 170 <0.05 <1 <0.1 <0.1 <0.01 0.12 <0.1 297 <10 <10 950 0.43 32S/12E-24B02 4/18/2012 630 37 39 3.7 88 28 310 171 <0.1 <1 <0.1 0.16 <0.01 0.099 <0.2 310 <10 <10 950 0.26 32S/12E-24B02 1/11/2012 650 33 46 4.6 110 32 300 150 <0.1 1.3 <0.1 0.21 <0.02 0.13 0.03 300 <10 <10 950 1.7 32S/12E-24B02 11/21/2011 640 32 39 3.9 93 29 290 150 <0.05 <1 0.064 <0.1 <0.01 0.096 <0.1 290 <10 <10 930 0.32 32S/12E-24B02 7/25/2011 640 36 48 4.2 97 31 290 165.3 <0.05 <1 <0.1 <0.1 <0.01 0.096 <0.1 290 <5 <5 950 0.88 32S/12E-24B02 4/20/2011 620 39 46 7.4 90 36 320 174 <0.05 <1 0.17 0.14 0.014 <0.005 <0.1 320 <2.0 <2.0 950 NA 32S/12E-24B02 1/24/2011 640 43 44 5.9 87 28 270 170 <0.05 <1.0 0.11 <0.1 0.14 0.085 <0.1 270 <2.0 <2.0 940 1.3 32S/12E-24B02 10/28/2010 650 43 50 4.5 110 35 270 160 <0.1 <1.0 0.12 <0.1 NA 0.085 <0.3 270 <10 <10 970 0.63 32S/12E-24B02 7/27/2010 598 42 48.9 4.29 111 40.5 318 160 < 0.10 1.3 0.0609 < 0.10 0.11 0.106 0.15 318 < 1.0 < 1.0 980 2.84 32S/12E-24B02 4/27/2010 668 46 52.7 4.73 111 43.2 349 150 < 0.10 1.3 0.0666 < 0.10 0.14 0.101 0.16 349 < 1.0 < 1.0 980 6.66 32S/12E-24B02 1/27/2010 622 45 58.0 5.39 115 32.2 270 160 0.18 0.84 0.117 < 0.10 0.14 0.209 0.16 270 < 1.0 < 1.0 920 3.49 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/12E-24B03 10/6/2021 660 53 56 3.6 120 43 320 160 0.1 0.16 0.092 0.05 0.018 0.0098 0.16 320 8.2 8.2 1,010 0.044 32S/12E-24B03 7/15/2021 590 51 51 3.6 110 40 320 160 0.024 0.14 0.038 0.025 0.02 0.0093 0.17 320 8.2 8.2 1,020 0.19 32S/12E-24B03 4/7/2021 670 49 51 3.7 100 40 330 160 0.024 0.088 0.059 0.036 0.016 0.011 0.17 330 8.2 8.2 0.18 32S/12E-24B03 1/7/2021 490 51 53 3.9 110 41 330 170 0.024 0.39 0.068 0.026 0.02 0.01 0.21 330 4.1 4.1 992 0.17 32S/12E-24B03 10/12/2020 740 51 53 3.8 110.0 40 320 170 0 0.00 0.06 0.032 0.021 0.01 0.16 320 0 0 1,010 0.3 32S/12E-24B03 7/7/2020 760 53 55 3.9 110.0 42 330 170 0 0.20 0.06 0.050 0.021 0.01 0.22 330 8 8 1,020 0.2 32S/12E-24B03 4/22/2020 570 50 50 3.7 110.0 39 330 160 0 0.12 0.06 0.000 0.022 0.01 0.17 330 0 0 1,040 0.3 32S/12E-24B03 1/15/2020 590 50 55 4.0 120.0 42 330 160 0 0.08 0.07 0.000 0.025 0.01 0.13 330 0 0 972 0.3 32S/12E-24B03 10/14/2019 660 48 56 4.0 120.0 40 330 170 0 0.11 0.07 0.029 0.018 0.01 0.18 330 0 0 1,010 0.3 32S/12E-24B03 7/10/2019 590 49 53 4.2 110.0 44 330 160 0 0.15 0.07 0.020 0.018 0.01 0.18 330 0 0 1,000 0.2 32S/12E-24B03 4/10/2019 640 50 50 3.7 110 43 320 160 ND 0.15 0.063 0.037 0.017 0.012 0.16 320 ND ND 1,020 0.44 32S/12E-24B03 1/8/2019 660 50 50 3.9 110 43 320 160 ND 0.12 0.065 0.039 0.021 0.011 0.14 320 ND ND 1,020 0.21 32S/12E-24B03 10/9/2018 690 48 52 4.1 110 45 320 160 ND 0.19 0.065 ND 0.020 0.011 0.10 320 ND ND 1,030 0.19 32S/12E-24B03 7/12/2018 650 47 51 3.8 110 42 320 150 ND 0.14 0.062 0.023 0.020 0.10 0.16 320 ND ND 1,040 0.18 32S/12E-24B03 4/11/2018 670 50 53 4.0 110 44 320 160 ND 0.11 0.065 0.017 0.019 0.011 0.19 320 ND ND 1,010 0.19 32S/12E-24B03 1/12/2018 620 48 57 3.9 110 45 330 160 ND 0.13 0.061 0.041 0.023 0.011 0.18 330 ND ND 993 0.19 32S/12E-24B03 10/11/2017 660 49 54 4 120 45 330 160 ND 0.16 0.069 0.022 0.02 0.011 0.19 330 ND ND 1020 0.20 32S/12E-24B03 7/12/2017 790 46 54 4 120 45 320 160 ND ND 0.062 0.015 0.02 0.011 0.18 320 ND ND 1,010 0.19 32S/12E-24B03 4/11/2017 670 48 55 4.1 120 45 330 160 ND 0.17 0.058 ND 0.019 0.012 0.21 330 ND ND 988 0.23 32S/12E-24B03 1/12/2017 670 47 58 4.3 130 50 340 160 ND ND 0.068 0.012 0.024 0.014 0.18 340 ND ND 1,000 0.27 32S/12E-24B03 10/11/2016 680 49 53 4 110 47 340 160 ND ND 0.06 0.015 0.025 0.013 0.17 340 ND ND 1020 0.22 32S/12E-24B03 7/19/2016 690 47 54 4.1 110 46 340 160 <0.022 0.32 0.063 0.017 0.016 0.013 0.20 340 <8.2 <8.2 1,010 0.32 32S/12E-24B03 4/12/2016 680 48 55 4.1 110 45 320 160 <0.022 0.21 0.056 0.019 0.018 0.012 0.17 320 <8.2 <8.2 1,010 0.28 32S/12E-24B03 1/12/2016 610 51 53 4.0 110 46 320 170 <0.022 0.11 0.037 0.038 <0.10 0.015 0.19 320 <8.2 <8.2 1,050 0.27 32S/12E-24B03 10/15/2015 650 44 48 4.4 100 42 325 160 <0.05 <1 <0.05 <0.10 0.016 0.010 <0.10 325 <10 <10 1,020 0.21 32S/12E-24B03 7/15/2015 680 46 60 40.0 120 47 333 160 <0.05 <1 0.064 <0.1 0.01 0.010 <0.1 333 <10 <10 1,020 0.20 32S/12E-24B03 4/15/2015 650 46 44 3.5 96 38 330 170 <0.05 <1 0.061 <0.1 0.012 0.0080 <0.1 330 <10 <10 980 0.17 32S/12E-24B03 1/14/2015 670 47 48 3.6 110 43 330 170 <0.05 <1 0.052 <0.10 0.01 0.090 <0.1 330 <10 <10 970 0.17 32S/12E-24B03 10/14/2014 650 40 48 4.1 100 41 330 142 <0.05 <1 0.061 <0.1 <0.01 0.010 <0.1 330 <10 <10 1,010 0.19 32S/12E-24B03 7/30/2014 650 45 45 3.1 94 40 390 150 <0.05 <1 <0.1 <0.1 <0.01 <0.005 <0.1 390 <10 <10 1,020 0.19 32S/12E-24B03 4/16/2014 660 43 46 4.3 90 35 330 150 0.23 <1 0.056 <0.1 <0.01 <0.005 0.11 330 <10 <10 1,010 0.16 32S/12E-24B03 1/15/2014 660 45 52 4.0 100 41 320 165 <0.05 <1 <0.05 <0.1 <0.01 0.0090 <0.1 320 <10 <10 1,010 0.17 32S/12E-24B03 10/15/2013 720 40 51 4.0 100 40 310 170 <0.05 <1 <0.05 <0.1 <0.01 0.0090 <0.1 310 <10 <10 1,010 0.2 32S/12E-24B03 7/9/2013 660 46 47 3.9 110 41 310 170 <0.05 <1 0.066 <0.1 <0.01 0.0100 <0.1 310 <10 <10 1,010 0.27 32S/12E-24B03 4/10/2013 670 44 46 3.8 96 38 320 160 <0.05 <1 0.071 <0.1 <0.01 0.0080 <0.1 320 <10 <10 1,010 0.19 32S/12E-24B03 1/14/2013 630 45 47 3.9 96 37 320 170 <0.05 <1 0.065 <0.1 <0.01 0.0080 <0.1 320 <10 <10 1,010 0.26 32S/12E-24B03 10/29/2012 680 45 49 4.1 100 39 305 158 <0.05 <1 0.069 0.1 <0.01 0.0090 <0.1 305 <10 <10 1,010 0.22 32S/12E-24B03 7/23/2012 670 49 47 4.1 86 35 318 170 <0.05 <1 <0.1 <0.1 <0.01 0.0150 <0.1 318 <10 <10 1,010 0.24 32S/12E-24B03 4/18/2012 640 50 40 3.4 84 33 320 160 <0.1 <1 <0.1 <0.2 <0.01 0.0070 <0.2 320 <10 <10 1,010 0.23 32S/12E-24B03 1/12/2012 660 46 48 3.2 92 36 300 150 <0.1 <1 <0.1 0.35 <0.02 0.0080 <0.2 300 <10 <10 1,000 0.15 32S/12E-24B03 11/21/2011 660 43 41 3.7 91 34 310 150 <0.05 1.6 0.046 <0.1 0.014 0.0090 <0.1 310 <10 <10 970 0.12 32S/12E-24B03 7/25/2011 650 46 50 6.0 98 38 310 159.6 <0.05 <1 <0.1 <0.1 0.011 0.0100 <0.1 310 <5 <5 1,010 0.21 32S/12E-24B03 4/20/2011 650 47 48 4.6 95 31 310 168 <0.05 <1 0.11 0.08 0.015 0.0080 <0.1 310 <2.0 <2.0 1,020 NA 32S/12E-24B03 1/24/2011 660 46 44 5.6 87 33 320 160 <0.05 <1.0 NA <0.1 0.15 0.0096 <0.1 320 <2.0 <2.0 1,020 0.22 32S/12E-24B03 10/28/2010 660 44 48 3.8 110 39 315 50 <0.1 <1.0 0.089 <0.1 NA 0.0120 <0.3 315 <10 <10 1,020 0.55 32S/12E-24B03 7/27/2010 610 44 51.4 8.34 112 41.6 328 160 < 0.10 1.8 0.0533 < 0.10 0.17 0.0602 0.16 328 < 1.0 < 1.0 1,000 6.7 32S/12E-24B03 4/27/2010 666 45 53.2 4.84 118 44 357 150 < 0.10 1.5 0.0636 < 0.10 0.1 0.0519 0.17 357 < 1.0 < 1.0 980 9.71 32S/12E-24B03 1/27/2010 672 48 56.4 5.40 119 43.4 336 150 < 0.10 1.4 0.101 < 0.10 0.15 0.140 0.15 336 < 1.0 < 1.0 1,000 5.18 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30F01 10/6/2021 450 67 71 1.9 47 21 81 120 13 0.19 0.12 0.056 0.1 0.01 0.26 81 4.1 4.1 710 0.05 32S/13E-30F01 4/7/2021 670 70 66 1.9 41 20 85 130 13 0.17 0.078 0.09 0.005 0.004 0.31 85 4.1 4.1 0.03 32S/13E-30F01 10/12/2020 490 66 68 2.0 44.0 20 83 120 13 0.12 0.08 0.057 0.000 0.00 0.26 83 0 0 700 0.0 32S/13E-30F01 4/22/2020 500 64 68 2.1 44.0 19 84 120 13 0.15 0.08 0.033 0.000 0.00 0.26 84 0 0 719 0.0 32S/13E-30F01 10/14/2019 460 62 69 2.0 43.0 18 82 120 13 0.11 0.09 0.046 0.000 0.00 0.29 82 0 0 696 0.1 32S/13E-30F01 4/10/2019 480 61 60 2.1 41 19 85 120 13 0.12 0.09 0.06 ND ND 0.19 85 ND ND 693 0.04 32S/13E-30F01 10/10/2018 460 62 72 2.3 44 21 84 120 13 0.09 0.09 0.034 ND ND 0.16 84 ND ND 696 ND 32S/13E-30F01 4/12/2018 470 58 69 2.3 44 21 82 110 12 0.14 0.09 0.030 ND ND 0.23 82 ND ND 699 ND 32S/13E-30F01 10/11/2017 500 68 67 2.2 46 23 97 120 13 0.18 0.093 0.045 ND 0.018 0.28 97 ND ND 752 0.061 32S/13E-30F01 4/12/2017 510 61 65 2.1 42 20 85 120 13 0.12 0.074 0.062 ND ND 0.28 85 ND ND 682 0.045 32S/13E-30F01 10/11/2016 480 62 72 2.3 46 23 91 120 12 0.13 0.09 0.046 ND ND 0.32 91 ND ND 702 ND 32S/13E-30F01 4/13/2016 460 60 70 2.3 43 21 90 120 12 0.2 0.086 0.054 <0.01 <.0040 0.30 90 <4.1 <4.1 696 <0.030 32S/13E-30F01 10/14/2015 450 58 61 2.1 39 19 87 120 13 <1 0.084 <0.10 <0.01 <0.005 0.18 87 <10 <10 700 <0.05 32S/13E-30F01 4/15/2015 460 64 60 2.0 40 19 90 130 12 <1 0.081 <0.1 <0.01 <0.005 0.202 90 <10 <10 700 <0.05 32S/13E-30F01 1/14/2015 550 95 69 2 50 24 98 140 12.50 <1 0.085 <0.1 <0.01 <0.005 0.2 98 <10 <10 820 <0.05 32S/13E-30F01 10/14/2014 470 58 64 2 42 19 84 120 10.00 <1 0.081 <0.1 <0.01 <0.005 0.2 84 <10 <10 730 <0.05 32S/13E-30F01 7/30/2014 540 89 71 2 46 24 94 130 13.6 <1 <0.1 <0.1 <0.01 <0.005 0.101 94 <10 <10 860 <0.05 32S/13E-30F01 4/16/2014 610 122 78 3.3 47 22 100 140 12 <1 0.100 <0.1 <0.01 <0.005 0.17 100 <10 <10 970 <0.05 32S/13E-30F01 1/15/2014 510 80 69 2.3 45 22 94 136 12.6 13.00 <0.1 <0.1 <0.01 <0.005 0.19 94 <10 <10 810 <0.05 32S/13E-30F01 10/15/2013 530 78 73 2.3 47 22 86 140 12 <1 0.072 <0.1 <0.01 <.005 0.17 86 <10 <10 830 <0.05 32S/13E-30F01 7/10/2013 480 80 64 2.2 49 22 85 140 12.2 <1 0.089 <0.1 <0.01 <0.005 <0.1 85 <10 <10 770 <0.05 32S/13E-30F01 4/11/2013 460 60 60 2.20 38 18 78 120 12 <1 0.091 <0.1 <0.01 <0.005 0.2 78 <10 <10 710 <0.05 32S/13E-30F01 1/15/2013 440 65 64 2.40 40 19 95 130 12 <1 0.090 <0.1 <0.01 <0.005 0.11 95 <10 <10 720 0.05 32S/13E-30F01 10/30/2012 470 60 66 2.50 43 20 75 123 12 <1 0.087 <0.1 <0.01 <0.005 0.13 75 <10 <10 720 <0.05 32S/13E-30F01 7/24/2012 470 73 66 2.70 36 18 86 120 13 <1 <0.1 <0.1 <0.01 0.019 0.11 86 <10 <10 720 <0.05 32S/13E-30F01 4/19/2012 450 72 52 1.90 32 15 81 130 13 <1 <0.1 <0.2 <0.01 <0.005 <0.2 81 <10 <10 700 <0.1 32S/13E-30F01 1/10/2012 460 67 61 2.00 35 17 81 120 11 <1 <0.1 0.12 <0.01 <0.005 <0.1 81 <10 <10 720 <0.1 32S/13E-30F01 11/17/2011 470 70 82 2.40 40 19 78 120 12 <1 <0.1 <0.1 <0.01 <0.005 0.16 78 <10 <10 720 <0.1 32S/13E-30F01 7/25/2011 460 66 68 4.40 37 19 78 117.4 12.17 <1 0.100 0.101 <0.01 0.014 0.178 78 <5 <5 720 0.11 32S/13E-30F01 4/20/2011 460 71 69 2.60 36 14 87 124 12 <1 0.180 0.11 <0.01 <0.005 0.17 87 <2.0 <2.0 730 NA 32S/13E-30F01 1/24/2011 510 75 64 4.00 34 18 83 140 11 <1.0 0.170 0.11 <0.10 <0.005 <0.1 83 <2.0 <2.0 780 <0.1 32S/13E-30F01 10/21/2010 540 100 73 2.00 43 21 88 120 13 <1.0 0.067 <0.1 NA <0.005 <0.3 88 <10 <10 894 <.1 32S/13E-30F01 7/26/2010 464 74 82.2 2.16 47.9 25.1 88.0 120 12 < 0.50 0.098 < 0.10 < 0.10 0.0817 0.37 88.0 < 1.0 < 1.0 710 0.79 32S/13E-30F01 4/27/2010 534 72 77.1 2.59 45.8 23.6 100 140 9.8 0.56 0.129 < 0.10 < 0.10 0.112 0.29 100 < 1.0 < 1.0 780 1.02 32S/13E-30F01 1/28/2010 725 140 99.9 2.70 76.4 35.8 214 170 1.6 0.84 0.120 < 0.10 < 0.10 0.112 0.56 214 < 1.0 < 1.0 1,200 0.640 32S/13E-30F01 10/19/2009 522 74 85.6 2.35 52.8 26.3 102 150 13 0.70 0.136 0.13 < 0.10 0.123 0.32 102 < 1.0 < 1.0 770 1.30 32S/13E-30F01 8/19/2009 648 92 98.9 3.84 63.1 31.9 113 190 10 0.56 NA < 0.10 0.12 1.03 0.32 113 < 1.0 < 1.0 970 4.52 32S/13E-30F01 5/12/2009 792 110 108 2.89 80.2 39.9 136 280 NA NA NA < 0.10 NA 0.0353 0.39 136 < 1.0 < 1.0 1,200 0.281 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30F02 10/6/2021 550 53 46 2.3 77 31 180 130 14 0.15 0.11 0.093 0.1 0.052 0.66 180 4.1 4.1 838 0.05 32S/13E-30F02 7/16/2021 580 51 47 2.7 78 31 190 130 14 0.12 0.12 0.093 0.005 0.0073 0.62 190 4.1 4.1 834 0.03 32S/13E-30F02 4/7/2021 560 53 46 2.4 75 32 180 130 14 0.16 0.078 0.093 0.005 0.014 0.59 180 4.1 4.1 0.03 32S/13E-30F02 1/6/2021 550 52 44 2.6 73 31 180 130 14 0.45 0.088 0.085 0.005 0.0082 0.6 180 4.1 4.1 823 0.03 32S/13E-30F02 10/12/2020 540 52 45 2.4 76.0 30 180 130 14 0.19 0.08 0.085 0.000 0.01 0.62 180 0 0 836 0.0 32S/13E-30F02 7/7/2020 600 53 51 2.7 83.0 33 180 130 14 0.20 0.10 0.080 0.100 0.01 0.68 180 4 4 845 0.1 32S/13E-30F02 4/22/2020 580 52 47 2.6 78.0 31 180 130 14 0.18 0.09 0.086 0.000 0.02 0.66 180 0 0 857 0.0 32S/13E-30F02 1/14/2020 550 53 48 2.8 84.0 32 180 130 14 0.10 0.10 0.079 0.000 0.02 0.40 180 0 0 808 0.1 32S/13E-30F02 10/14/2019 550 51 50 2.7 83.0 32 180 130 14 0.00 0.10 0.077 0.000 0.15 0.63 180 0 0 841 0.1 32S/13E-30F02 7/9/2019 620 51 47 2.5 82.0 35 190 120 14 0.13 0.09 0.084 0.000 0.02 0.49 190 0 0 838 0.0 32S/13E-30F02 4/10/2019 570 53 43 2.7 78 32 180 130 14 0.085 0.093 0.090 ND 0.046 0.47 180 ND ND 852 0.05 32S/13E-30F02 1/8/2019 560 52 44 2.7 80 34 190 130 14 0.059 0.094 0.091 ND 0.013 0.62 190 ND ND 845 ND 32S/13E-30F02 10/10/2018 580 51 50 2.9 83 35 190 130 14 0.07 0.094 0.07 ND 0.020 0.42 190 ND ND 848 0.07 32S/13E-30F02 7/10/2018 580 53 48 2.7 83 36 190 130 14 0.23 0.095 0.11 ND 0.026 0.59 190 ND ND 893 0.045 32S/13E-30F02 4/12/2018 580 48 48 2.8 82 35 190 120 13 0.12 0.097 0.072 ND 0.022 0.48 190 ND ND 854 ND 32S/13E-30F02 1/11/2018 580 52 51 2.7 82 36 200 130 14 0.14 0.091 0.12 ND 0.032 0.68 200 ND ND 846 ND 32S/13E-30F02 10/11/2017 580 51 46 2.6 80 34 200 130 14 0.16 0.094 0.083 ND 0.037 0.65 200 ND ND 877 0.037 32S/13E-30F02 7/12/2017 570 52 49 2.9 89 39 200 130 13 ND 0.094 0.096 ND 0.15 0.66 200 ND ND 861 ND 32S/13E-30F02 4/12/2017 620 52 51 2.9 88 38 200 130 13 ND 0.088 0.063 ND 0.022 0.67 200 ND ND 856 0.041 32S/13E-30F02 1/10/2017 590 52 50 2.8 90 37 220 140 13 ND 0.09 0.08 ND 1.1 0.6 220 ND ND 884 0.15 32S/13E-30F02 10/11/2016 600 52 50 2.9 89 40 220 140 13 0.089 0.09 0.074 ND 0.025 0.6 220 ND ND 886 ND 32S/13E-30F02 7/20/2016 590 51 51 3.0 88 38 220 130 13 0.14 0.091 0.072 <0.010 0.170 0.57 220 <4.1 <4.1 880 0.033 32S/13E-30F02 4/13/2016 570 51 51 2.9 89 40 200 130 13 0.08 0.1 0.086 <0.010 0.014 0.60 200 <4.1 <4.1 876 <0.030 32S/13E-30F02 1/13/2016 610 53 51 2.9 89 38 210 140 13 0.14 0.091 0.15 <0.010 0.035 0.47 210 <4.1 <4.1 858 <0.030 32S/13E-30F02 10/14/2015 570 49 45 2.8 80 35 212 130 13 <1 0.085 <0.10 <0.01 0.20 0.39 212 <10 <10 890 0.078 32S/13E-30F02 7/15/2015 610 50 51 2.0 88 38 204 140 13 <1 0.091 <0.1 <0.01 0.048 0.30 204 <10 <10 890 <0.05 32S/13E-30F02 4/15/2015 570 51 43 2.7 78 34 200 140 13.5 <1 0.085 <0.1 <0.01 0.087 0.42 200 <10 <10 850 <0.05 32S/13E-30F02 1/14/2015 590 51 42 2.4 80 34 210 140 13 <1 0.08 <0.1 <0.01 0.014 0.324 210 <10 <10 860 <0.05 32S/13E-30F02 10/14/2014 600 46 42 2.6 76 32 310 120 12 <1 0.08 <0.1 <0.01 0.22 0.37 310 <10 <10 890 <0.05 32S/13E-30F02 7/30/2014 580 49 46 2.6 80 35 210 130 13 <1 <0.1 <0.1 <0.01 0.02 0.27 210 <10 <10 890 <0.05 32S/13E-30F02 4/16/2014 590 49 45 3.3 68 30 200 130 12 <1 0.089 <0.1 <0.01 0.011 0.44 200 <10 <10 890 <0.05 32S/13E-30F02 1/15/2014 580 50 45 2.7 76 31 190 136 13.1 13.4 <0.1 <0.1 <0.01 0.054 0.4 190 <10 <10 890 <0.05 32S/13E-30F02 10/15/2013 570 50 45 2.7 75 33 190 140 12 <1 0.69 0.19 <0.01 0.099 0.38 190 <10 <10 890 <0.05 32S/13E-30F02 7/10/2013 570 50 38 2.6 78 32 190 180 <0.05 <1 0.08 0.13 <0.01 0.14 <0.1 190 <10 <10 880 <0.05 32S/13E-30F02 4/11/2013 590 50 41 2.6 70 30 190 140 14 <1 0.09 0.1 <0.01 0.082 0.43 190 <10 <10 880 <0.05 32S/13E-30F02 1/15/2013 550 50 44 2.9 72 31 200 140 13 <1 0.09 0.1 <0.01 0.011 0.32 200 <10 <10 880 0.12 32S/13E-30F02 10/30/2012 610 48 45 3.0 79 34 188 135 13 <1 0.09 <0.1 <0.01 0.06 0.31 188 <10 <10 890 0.011 32S/13E-30F02 7/24/2012 590 56 46 3.2 69 30 194 140 14 <1 <0.1 0.11 <0.01 0.038 0.27 194 <10 <10 880 <0.05 32S/13E-30F02 4/19/2012 600 60 40 2.7 68 30 200 140 14 <1 <0.1 <0.2 <0.01 0.19 0.3 200 <10 <10 890 0.11 32S/13E-30F02 1/12/2012 610 52 45 3.0 73 32 200 130 12 <1 <0.1 0.25 <0.02 0.29 0.33 200 <10 <10 890 <0.1 32S/13E-30F02 11/21/2011 580 49 38 2.7 73 30 190 120 13 <1 0.07 <0.1 <0.01 0.022 0.34 190 <10 <10 870 <0.1 32S/13E-30F02 7/25/2011 590 52 46 5.1 73 31 190 134.3 13.19 <1 <0.1 0.127 <0.1 0.025 0.387 190 <5 <5 900 <0.1 32S/13E-30F02 4/20/2011 600 54 57 4.2 74 29 200 141 13 <1 0.18 0.17 <0.01 0.025 0.38 200 <2.0 <2.0 920 NA 32S/13E-30F02 1/24/2011 600 51 43 4.9 71 31 210 140 12 <1.0 0.15 0.12 0.27 0.041 0.3 210 <2.0 <2.0 920 <0.1 32S/13E-30F02 10/28/2010 610 49 38 2.3 70 30 210 130 11 <1.0 0.10 <0.1 NA 0.0094 <0.3 210 <10 <10 920 <0.1 32S/13E-30F02 7/26/2010 560 49 45.8 2.95 85.4 36.8 223 130 11 2.5 0.0928 < 0.10 0.13 0.0646 0.59 223 < 1.0 < 1.0 890 < 0.100 32S/13E-30F02 4/27/2010 634 51 50.3 3.12 87.9 38.6 225 130 10 0.8 0.112 < 0.10 < 0.10 0.615 0.51 225 < 1.0 < 1.0 880 3.28 32S/13E-30F02 1/28/2010 604 44 52.2 4.47 92.1 38.5 230 150 11 1.4 0.127 < 0.10 < 0.10 0.913 0.48 230 < 1.0 < 1.0 920 4.55 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30F03 10/6/2021 640 50 42 2.3 110 46 300 170 0.1 0.15 0.078 0.14 0.052 0.018 0.25 300 4.1 4.1 982 0.05 32S/13E-30F03 7/16/2021 660 48 39 2.4 99 43 310 170 0.024 0.15 0.083 0.13 0.038 0.019 0.23 310 4.1 4.1 975 0.03 32S/13E-30F03 4/7/2021 650 49 40 2.4 100 43 310 170 0.024 0.097 0.05 0.15 0.029 0.019 0.24 310 4.1 4.1 0.033 32S/13E-30F03 1/6/2021 660 50 43 2.7 110 46 310 170 0.024 0.32 0.064 0.15 0.037 0.025 0.27 310 4.1 4.1 971 0.05 32S/13E-30F03 10/12/2020 710 49 41 2.5 110.0 43 310 170 0 0.00 0.06 0.140 0.037 0.02 0.21 310 0 0 975 0.0 32S/13E-30F03 7/7/2020 720 50 42 2.6 110.0 45 290 170 0 0.10 0.06 0.120 0.038 0.02 0.22 290 4 4 985 0.1 32S/13E-30F03 4/22/2020 620 49 41 2.6 110.0 44 310 170 0 0.10 0.06 0.140 0.042 0.02 0.23 310 0 0 999 0.1 32S/13E-30F03 1/14/2020 600 49 41 2.6 110.0 44 300 170 0 0.08 0.06 0.120 0.044 0.02 0.16 300 0 0 940 0.1 32S/13E-30F03 10/14/2019 620 47 44 2.7 110.0 44 300 170 0 0.00 0.06 0.120 0.035 0.02 0.16 300 0 0 980 0.1 32S/13E-30F03 7/9/2019 650 47 41 2.5 110.0 49 310 170 0 0.09 0.06 0.140 0.039 0.02 0.21 310 0 0 975 0.0 32S/13E-30F03 4/10/2019 630 49 37 2.5 100 45 310 170 ND 0.140 0.060 0.14 0.030 0.020 0.19 310 ND ND 988 0.05 32S/13E-30F03 1/8/2019 660 48 39 2.6 110 46 310 170 ND 0.068 0.063 0.15 0.037 0.020 0.22 310 ND ND 990 0.08 32S/13E-30F03 10/10/2018 650 48 44 2.9 120 51 310 170 ND 0.12 0.067 0.10 0.036 0.022 0.16 310 ND ND 981 0.05 32S/13E-30F03 7/10/2018 630 49 42 2.6 110 49 310 170 ND ND 0.062 0.18 0.035 0.019 0.22 310 ND ND 1,030 ND 32S/13E-30F03 4/12/2018 640 45 43 2.6 110 46 300 160 ND 0.15 0.066 0.14 0.036 0.021 0.16 300 ND ND 980 0.035 32S/13E-30F03 1/11/2018 650 48 45 2.8 120 51 310 170 ND 0.13 0.044 0.15 0.041 0.021 0.26 310 ND ND 966 0.037 32S/13E-30F03 10/11/2017 660 47 42 2.6 110 50 320 170 ND 0.13 0.067 0.13 0.037 0.021 0.2 320 ND ND 996 0.056 32S/13E-30F03 7/12/2017 750 46 44 3 120 53 280 170 ND ND 0.064 0.14 0.035 0.023 0.2 280 ND ND 980 0.046 32S/13E-30F03 4/12/2017 640 48 45 2.9 120 51 310 170 ND ND 0.076 0.16 0.035 0.022 0.22 310 ND ND 972 0.065 32S/13E-30F03 1/10/2017 670 49 44 2.7 120 51 330 170 ND ND 0.064 0.13 0.045 0.023 0.31 330 ND ND 993 0.14 32S/13E-30F03 10/11/2016 680 48 41 2.6 110 49 320 170 ND 0.11 0.056 0.13 0.042 0.02 0.22 320 ND ND 992 ND 32S/13E-30F03 7/20/2016 660 47 44 2.9 110 51 320 170 <0.022 <0.080 0.062 0.12 0.032 0.023 0.20 320 <4.1 <4.1 992 0.04 32S/13E-30F03 4/13/2016 650 47 42 2.7 110 51 310 170 <0.022 0.2 0.072 0.13 0.028 0.021 0.22 310 <4.1 <4.1 981 0.03 32S/13E-30F03 1/14/2016 580 49 45 2.8 120 52 310 180 0.05 0.1 0.061 0.2 <0.010 0.025 0.21 310 <4.1 <4.1 947 0.054 32S/13E-30F03 10/14/2015 660 44 38 2.8 100 44 306 160 <0.05 <1 <0.05 0.13 0.028 0.021 0.10 306 <10 <10 990 <0.05 32S/13E-30F03 7/15/2015 670 45 45 1.9 120 51 305 170 <0.05 <1 0.060 0.11 0.03 0.019 <0.1 305 <10 <10 990 <0.05 32S/13E-30F03 4/15/2015 650 46 35 2.3 99 44 300 170 <0.05 <1 0.056 0.126 0.02 0.015 0.1 300 <10 <10 950 <0.05 32S/13E-30F03 1/14/2015 670 46 36 2.2 100 45 310 180 <0.05 <1 0.05 0.121 0.02 0.016 <0.1 310 <10 <10 950 0.01 32S/13E-30F03 10/14/2014 660 41 35 3.0 99 42 310 150 <0.05 <1 <0.05 <0.1 0.011 0.017 <0.1 310 <10 <10 990 <0.05 32S/13E-30F03 7/30/2014 660 44 38 2.6 96 46 300 160 <0.05 <1 0.28 0.12 0.02 0.015 <0.1 300 <10 <10 990 <0.05 32S/13E-30F03 4/16/2014 640 44 36 3.3 55 38 310 169 <0.05 <1 0.062 0.12 0.02 0.011 0.11 310 <10 <10 990 <0.05 32S/13E-30F03 1/15/2014 650 45 35 2.5 90 41 300 173 <0.05 <1 <0.05 0.13 0.01 0.015 0.12 300 <10 <10 990 <0.05 32S/13E-30F03 10/15/2013 670 41 40 2.7 100 44 280 179 <0.05 <1 <0.05 0.14 0.02 0.016 <0.1 280 <10 <10 990 <0.05 32S/13E-30F03 7/10/2013 650 50 33 2.4 100 43 290 140 13.5 <1 0.055 <0.1 0.02 0.017 0.23 290 <10 <10 990 <0.05 32S/13E-30F03 4/11/2013 670 45 36 2.7 94 42 300 170 <0.05 <1 0.06 0.13 0.02 0.016 0.12 300 <10 <10 990 <0.05 32S/13E-30F03 1/15/2013 630 45 36 2.3 92 41 295 180 <0.05 <1 0.06 0.11 <0.01 0.015 <0.1 295 <10 <10 980 <0.05 32S/13E-30F03 10/30/2012 650 43 40 3.1 100 46 280 170 <0.05 <1 0.06 <0.1 0.03 0.016 <0.1 280 <10 <10 990 0.02 32S/13E-30F03 7/24/2012 640 51 36 2.7 81 37 296 180 <0.05 <1 <0.1 0.17 <0.01 0.016 0.2 296 <10 <10 990 <0.05 32S/13E-30F03 4/19/2012 640 54 32 2.3 84 36 290 180 <0.1 <1 <0.1 <0.2 0.01 0.014 <0.2 290 <10 <10 990 <0.1 32S/13E-30F03 1/12/2012 660 46 39 2.1 94 42 280 160 <0.1 <1 <0.1 0.2 0.025 0.016 <0.2 280 <10 <10 990 <0.1 32S/13E-30F03 11/21/2011 650 43 33 2.6 93 39 290 160 <0.05 <1 0.04 0.15 0.028 0.016 <0.1 290 <10 <10 960 <0.1 32S/13E-30F03 7/25/2011 650 47 46 5.1 73 31 190 170.5 <0.05 <1 <0.1 0.155 0.02 0.025 <0.1 190 <5 <5 900 <0.1 32S/13E-30F03 4/21/2011 650 48 40 3.8 91 34 280 179 <0.05 <1 0.1 0.2 0.029 0.015 0.11 280 <2.0 <2.0 1,000 NA 32S/13E-30F03 1/24/2011 650 46 36 4.7 87 38 300 170 <0.05 <1.0 0.11 0.17 0.24 0.016 <0.1 300 <2.0 <2.0 990 <0.1 32S/13E-30F03 10/28/2010 650 46 37 2.7 100 43 280 160 <0.1 <1.0 0.10 <0.1 NA 0.032 <0.3 280 <10 <10 1,000 0.53 32S/13E-30F03 7/26/2010 608 45 43.8 2.94 107 46.8 294 160 1.3 0.84 0.0479 < 0.10 0.10 0.129 0.24 294 < 1.0 < 1.0 900 7.55 32S/13E-30F03 4/27/2010 668 48 40.8 2.91 101 44.7 304 160 0.21 0.84 0.0733 0.14 0.11 0.0694 0.23 304 < 1.0 < 1.0 940 2.62 32S/13E-30F03 1/28/2010 656 40 43.1 3.91 112 47.2 310 180 < 0.20 2.8 0.0833 0.13 < 0.10 0.287 0.21 310 < 1.0 < 1.0 980 4.80 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30N01 10/6/2021 720 120 94 24 64 48 240 200 0.1 0.43 0.2 0.37 0.026 0.082 1.6 240 8.2 8.2 1,160 1.5 32S/13E-30N01 4/7/2021 810 120 89 25 66 53 310 160 0.024 0.63 0.21 0.35 0.015 0.09900001 1.2 310 8.2 8.2 2.2 32S/13E-30N01 10/12/2020 870 120 97 28.0 82.0 60 330 160 0 0.68 0.21 0.370 0.020 0.11 1.20 330 0 0 1,260 2.7 32S/13E-30N01 4/21/2020 810 130 110 31.0 84.0 60 390 130 0 0.68 0.22 0.330 0.017 0.12 0.98 390 0 0 1,340 3.0 32S/13E-30N01 10/15/2019 830 150 110 32.0 86.0 57 330 170 0 0.66 0.22 0.320 0.018 0.12 1.30 330 0 0 1,340 2.6 32S/13E-30N01 4/9/2019 860 160 94 30 81 59 310 180 ND 0.64 0.23 0.36 0.012 0.11 1.2 310 ND ND 1,370 2.8 32S/13E-30N01 10/10/2018 920 200 130 36 96 73 370 140 ND 0.62 0.21 0.36 0.017 0.14 0.85 370 ND ND 1,500 3.0 32S/13E-30N01 4/11/2018 800 140 110 31 73 55 290 150 ND 0.73 0.2 0.36 0.017 0.1 1.1 290 ND ND 1,280 2.4 32S/13E-30N01 10/11/2017 870 150 120 31 78 57 320 170 ND 0.68 0.24 0.38 0.019 0.12 1.5 320 ND ND 1350 3 32S/13E-30N01 4/11/2017 960 260 160 35 92 73 350 150 ND 0.84 0.23 0.42 0.015 0.14 1.5 350 ND ND 1,690 3.9 32S/13E-30N01 10/12/2016 900 180 130 32 77 61 290 180 ND 0.53 0.19 0.34 0.021 0.11 1.7 290 ND ND 1420 2.7 32S/13E-30N01 4/12/2016 790 110 110 27 55 46 230 190 0.05 0.5 0.18 0.42 0.013 0.1 1.7 230 <8.2 <8.2 1,190 1.7 32S/13E-30N01 10/15/2015 740 120 100 27 52 41 250 190 <0.05 <1 0.18 0.43 0.032 0.072 1.3 250 <10 <10 1,220 1.8 32S/13E-30N01 4/14/2015 930 190 130 28 69 54 360 170 <0.05 1.4 0.23 0.334 0.01 0.087 1.2 360 <10 <10 1,500 2.5 32S/13E-30N01 1/14/2015 845 170 110 29.0 71 54 320 180 <0.05 <1 0.21 0.332 0.01 0.087 1.2 320 <10 <10 1,360 2.3 32S/13E-30N01 10/15/2014 790 140 110 30.0 62 53 300 160 0.68 <1 0.21 0.29 <0.01 0.084 1.2 300 <10 <10 1,350 2.5 32S/13E-30N01 7/30/2014 800 150 110 27.0 61 52 310 160 <0.05 <1 0.81 0.33 0.01 0.081 1.1 310 <10 <10 1,360 2.4 32S/13E-30N01 4/16/2014 850 160 112 26.0 55 43 310 170 <0.05 <1 0.20 0.33 0.01 0.077 1.3 310 <10 <10 1,410 2.4 32S/13E-30N01 1/15/2014 790 154 110 26.0 56 45 260 190 <0.05 <1 0.19 0.41 <0.01 0.077 1.4 260 <10 <10 1,340 2.5 32S/13E-30N01 10/15/2013 950 200 140 32.0 74 60 330 180 <0.05 <1 0.21 0.33 0.01 0.095 1.3 330 <10 <10 1,570 2.8 32S/13E-30N01 7/10/2013 830 175 120 29.0 71 54 310 185 <0.05 <1 0.22 0.32 0.01 0.087 0.84 310 <10 <10 1,430 2.3 32S/13E-30N01 4/10/2013 860 180 120 29.0 67 54 320 180 <0.05 1.1 0.21 0.31 0.01 0.087 1.2 320 <10 <10 1,470 2.5 32S/13E-30N01 1/14/2013 800 170 120 32.0 66 53 280 200 <0.05 1.1 0.22 0.26 <0.01 0.09 1.2 280 <10 <10 1,380 2.5 32S/13E-30N01 10/29/2012 900 180 120 34.0 77 60 300 190 <0.05 <1 0.21 0.40 0.011 0.098 1.2 300 <10 <10 1,500 2.8 32S/13E-30N01 7/23/2012 840 190 120 31.0 56 45 266 200 <0.05 <1 0.22 0.43 <0.01 0.096 1.2 266 <10 <10 1,370 2.3 32S/13E-30N01 4/18/2012 1,050 280 140 31.0 59 47 330 210 <0.1 1.4 0.2 0.50 <0.01 0.078 1.3 330 <10 <10 1,680 2.4 32S/13E-30N01 1/9/2012 1,050 260 170 34.0 68 52 307 200 <0.05 2.7 0.21 0.41 <0.01 0.088 1.9 307 <10 <10 1,760 2.9 32S/13E-30N01 11/17/2011 1,300 360 320 40 90 69 390 220 <0.1 <1 0.23 0.38 0.017 0.11 2.5 390 <10 <10 2,210 3.4 32S/13E-30N01 7/25/2011 1,680 445 230 42 99 81 380 255.5 <0.05 1.2 0.21 <0.1 <0.01 0.12 3.016 380 <5 <5 2,480 4.2 32S/13E-30N01 4/20/2011 890 210 130 26 68 46 180 215 <0.05 <1 0.24 0.39 0.013 0.086 4.57 180 <2.0 <2.0 1,550 NA 32S/13E-30N01 1/24/2011 870 180 100 28 84 46 240 210 <0.05 <1.0 <0.1 0.34 0.12 0.24 3.63 240 <2.0 <2.0 1,430 18 32S/13E-30N01 10/21/2010 890 190 120 26 58 45 246 200 <0.1 <1.0 <0.1 0.37 NA 0.078 2.3 246 <10 <10 1,498 <0.1 32S/13E-30N01 7/27/2010 917 200 130 30.0 75.0 56.2 241 220 < 0.10 < 0.50 0.165 0.29 0.23 0.101 2.8 241 < 1.0 < 1.0 1,400 2.61 32S/13E-30N01 4/27/2010 808 150 130 29 136 55.6 286 210 0.76 1.7 0.171 0.37 0.19 0.276 2.6 286 < 1.0 < 1.0 1,300 20.4 32S/13E-30N01 1/26/2010 902 210 155 33.5 156 66.4 307 230 < 0.10 1.7 0.317 0.30 0.12 0.333 3.2 307 < 1.0 < 1.0 1,500 27.3 32S/13E-30N01 10/20/2009 828 200 159 34.3 118 59.8 238 230 < 0.10 1.3 0.241 0.38 < 0.10 0.157 3.2 238 < 1.0 < 1.0 1,300 5.33 32S/13E-30N01 8/20/2009 835 160 150 27.8 121 49.4 235 220 < 0.10 1.3 NA 0.37 0.12 0.228 2.9 235 < 1.0 < 1.0 1,400 15.9 32S/13E-30N01 5/11/2009 960 180 175 33.5 86.7 46.2 274 220 NA NA NA 0.36 NA 0.113 3.2 274 < 1.0 < 1.0 1,500 2.26 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30N02 10/6/2021 930 51 70 3.9 140 58 190 490 0.18 0.2 0.16 0.12 0.011 0.01 0.14 190 8.2 8.2 1,340 0.05 32S/13E-30N02 7/15/2021 1,100 45 65 4.1 140 54 190 500 0.19 0.24 0.11 0.12 0.005 0.004 0.14 190 8.2 8.2 1,350 0.03 32S/13E-30N02 4/7/2021 1,000 43 70 4.4 140 57 200 490 0.19 0.13 0.14 0.13 0.005 0.004 0.14 200 8.2 8.2 0.03 32S/13E-30N02 1/7/2021 980 47 76 4.7 150 62 190 490 0.23 0.35 0.15 0.12 0.005 0.004 0.14 190 8.2 8.2 1,320 0.03 32S/13E-30N02 10/12/2020 1,100 50 73 4.7 150.0 61 190 510 0 0.00 0.15 0.110 0.000 0.00 0.13 190 0 0 1,350 0.0 32S/13E-30N02 7/7/2020 1,100 50 77 4.7 160.0 62 190 510 0 0.20 0.16 0.096 0.100 0.01 0.16 190 8 8 1,350 0.1 32S/13E-30N02 4/21/2020 1,000 49 71 4.5 150.0 56 190 500 0 0.22 0.15 0.120 0.000 0.00 0.13 190 0 0 1,370 0.1 32S/13E-30N02 1/15/2020 1,100 49 77 4.9 160.0 61 190 980 0 0.15 0.15 0.077 0.000 0.00 0.13 190 0 0 1,300 0.1 32S/13E-30N02 10/15/2019 1,000 49 77 4.8 160.0 58 190 510 0 0.10 0.16 0.088 0.000 0.00 0.17 190 0 0 1,350 0.2 32S/13E-30N02 7/9/2019 940 48 73 4.6 150.0 64 190 470 0 0.45 0.15 0.096 0.000 0.00 0.12 190 0 0 1,340 0.0 32S/13E-30N02 4/9/2019 1,000 50 64 4.6 140 56 190 480 0.2 0.14 0.15 0.12 ND ND 0.14 190 ND ND 1,350 0.04 32S/13E-30N02 1/9/2019 960 50 67 4.6 150 59 190 490 0.2 0.19 0.15 0.12 ND ND 0.16 190 ND ND 1,360 ND 32S/13E-30N02 10/10/2018 940 50 75 4.9 150 64 190 500 0.18 0.16 0.16 0.069 ND ND 0.09 190 ND ND 1,340 0.22 32S/13E-30N02 7/12/2018 1,000 47 66 4.5 140 59 190 480 0.19 0.19 0.14 0.099 ND ND 0.12 190 ND ND 1,390 0.17 32S/13E-30N02 4/11/2018 1,100 46 76 4.9 160 65 190 480 0.17 0.15 0.16 0.097 ND 0.007 0.14 190 ND ND 1,350 0.41 32S/13E-30N02 1/11/2018 980 49 77 4.6 150 63 190 510 0.19 0.10 0.15 0.13 ND ND 0.16 190 ND ND 1,330 0.2 32S/13E-30N02 10/11/2017 1,000 46 70 4.8 160 65 200 510 0.19 0.19 0.17 0.11 ND 0.005 0.27 200 ND ND 1340 0.28 32S/13E-30N02 7/11/2017 1,100 49 74 4.8 150 64 190 480 0.2 0.13 0.15 0.08 ND 0.023 0.16 190 ND ND 1,360 2.0 32S/13E-30N02 4/11/2017 980 50 74 4.8 160 64 190 510 0.2 0.12 0.14 0.14 ND ND 0.18 190 ND ND 1,320 0.2 32S/13E-30N02 1/13/2017 980 49 80 5.1 170 69 200 490 0.19 0.12 0.16 0.078 ND 0.011 0.16 200 ND ND 1,340 0.63 32S/13E-30N02 10/12/2016 1,000 50 77 5 160 69 200 500 0.18 ND 0.15 0.11 ND ND 0.27 200 ND ND 1370 ND 32S/13E-30N02 7/19/2016 1,000 48 78 5 160 68 200 500 0.2191 0.17 0.15 0.11 <0.010 <0.0040 0.2 200 <8.2 <8.2 1,350 <0.030 32S/13E-30N02 4/12/2016 1,000 44 72 4.8 150 67 190 470 0.2 <0.080 0.14 0.096 <0.010 <0.0040 0.21 190 <8.2 <8.2 1,390 <0.030 32S/13E-30N02 1/13/2016 990 48 74 4.9 150 64 190 520 0.27 0.12 0.14 0.22 <0.010 <0.0040 <0.046 190 <8.2 <8.2 1,300 0.041 32S/13E-30N02 10/15/2015 1,040 47 64 4.6 140 60 192 480 0.72 <1 0.13 0.18 <0.01 <0.005 <0.10 192 <10 <10 1,350 <0.05 32S/13E-30N02 7/16/2015 1,030 49 82 4.4 170 70 190 480 1.4 1.52 0.15 <0.1 <0.01 <0.005 0.11 190 <10 <10 1,360 <0.05 32S/13E-30N02 4/14/2015 840 47 61 4.3 130 58 190 500 0.576 <1 0.14 <0.3 <0.01 <0.005 <0.3 190 <10 <10 1,330 <0.05 32S/13E-30N02 1/14/2015 1,050 50 62 4.2 140 59 190 520 0.40 <1 0.13 0.115 <0.01 <0.005 <0.1 190 <10 <10 1,320 <0.05 32S/13E-30N02 10/15/2014 1,040 44 65 5.0 140 58 200 440 0.77 <1 0.13 <0.1 <0.01 <0.005 <0.1 200 <10 <10 1,370 <0.05 32S/13E-30N02 7/30/2014 1,020 45 66 4.6 140 60 220 470 0.51 <1 0.10 0.13 <0.01 <0.005 <0.4 220 <10 <10 1,340 <0.05 32S/13E-30N02 4/16/2014 1,040 46 66 5.0 120 50 190 520 0.47 <1 0.14 0.1 <0.01 <0.005 <0.1 190 <10 <10 1,350 <0.05 32S/13E-30N02 1/15/2014 1,060 45 60 4.1 120 49 190 477 0.65 1.1 0.13 0.43 <0.01 <0.005 <0.2 190 <10 <10 1,370 <0.05 32S/13E-30N02 10/15/2013 1,030 46 70 4.9 140 58 190 541 0.46 <1 0.12 0.18 <0.01 <0.005 <0.2 190 <10 <10 1,360 <0.05 32S/13E-30N02 7/10/2013 1,020 50 61 4.5 140 59 185 500 0.63 <1 0.14 0.12 <0.01 <0.005 <0.1 185 <10 <10 1,370 <0.05 32S/13E-30N02 4/10/2013 1,080 48 60 4.3 120 52 185 500 0.50 <1 0.15 <0.2 <0.01 <0.005 <0.2 185 <10 <10 1,360 <0.05 32S/13E-30N02 1/14/2013 1,010 48 63 4.5 120 53 188 530 0.40 <1 0.14 <0.2 <0.01 <0.005 <0.2 188 <10 <10 1,350 0.07 32S/13E-30N02 10/29/2012 1,030 40 68 5.0 140 58 180 500 <0.25 <1 0.14 <0.5 <0.01 <0.005 <0.5 180 <10 <10 1,360 <0.05 32S/13E-30N02 7/23/2012 1,040 54 63 4.5 110 48 188 510 0.13 <1 0.15 0.15 <0.01 0.01 <0.1 188 <10 <10 1,360 <0.05 32S/13E-30N02 4/18/2012 990 60 56 4.2 110 47 190 560 0.14 <1 0.12 0.21 <0.01 <0.005 0.28 190 <10 <10 1,360 <0.1 32S/13E-30N02 1/11/2012 1,040 49 64 4.9 130 54 180 460 1.30 <1 0.17 0.16 <0.02 <0.005 <0.2 180 <10 <10 1,360 <0.1 32S/13E-30N02 11/21/2011 1,020 46 57 4.5 130 54 180 450 0.15 <1 0.15 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,360 <0.1 32S/13E-30N02 7/25/2011 1,050 50 81 7.7 150 62 180 479.1 0.15 <1 0.16 0.144 <0.01 0.006 <0.1 180 <5 <5 1,370 0.49 32S/13E-30N02 4/20/2011 1,030 52 63 5.4 130 44 180 508 0.17 <1 0.19 0.2 <0.01 <0.005 <0.1 180 <2.0 <2.0 1,380 NA 32S/13E-30N02 1/24/2011 1,050 50 60 6.4 120 49 190 490 0.24 <1.0 0.17 0.17 <0.10 0.064 <0.1 190 <2.0 <2.0 1,380 0.12 32S/13E-30N02 10/21/2010 1,040 48 52 3.5 100 45 181 460 0.15 <1.0 <0.1 <0.1 NA <0.005 <0.3 181 <10 <10 1,377 <0.1 32S/13E-30N02 7/27/2010 777 57 67.6 7.31 141 58.5 190 470 0.3 3.5 0.138 < 0.10 0.11 0.102 0.28 190 < 1.0 < 1.0 1,300 3.43 32S/13E-30N02 4/27/2010 800 93 71.9 12.50 108 46.3 159 300 7.0 3.2 0.123 0.13 0.11 0.0776 0.7 159 < 1.0 < 1.0 1,100 3.27 32S/13E-30N02 2/25/2010 1,000 48 71.4 4.70 141 58.1 195 490 0.16 < 0.50 0.15 0.15 < 0.10 0.0393 0.16 195 < 1.0 < 1.0 1,300 3.30 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-30N03 10/6/2021 560 66 54 2.7 65 28 140 130 16 0.2 0.096 0.2 0.1 0.0079 0.7 140 4.1 4.1 818 0.05 32S/13E-30N03 7/15/2021 590 64 54 2.9 66 28 130 130 15 0.15 0.037 0.2 0.005 0.004 0.63 130 4.1 4.1 820 0.03 32S/13E-30N03 4/7/2021 510 66 56 3 65 30 140 130 15 0.12 0.078 0.18 0.005 0.004 0.76 140 4.1 4.1 0.03 32S/13E-30N03 1/7/2021 580 60 56 2.9 68 30 140 120 16 1.1 0.078 0.15 0.005 0.004 0.49 140 4.1 4.1 821 0.03 32S/13E-30N03 10/12/2020 600 66 58 3.2 74.0 32 140 140 16 0.13 0.09 0.180 0.000 0.00 0.75 140 0 0 848 0.0 32S/13E-30N03 7/7/2020 590 73 62 3.3 75.0 32 140 140 17 0.16 0.10 0.160 0.100 0.00 0.86 140 4 4 872 0.1 32S/13E-30N03 4/21/2020 590 69 57 3.2 71.0 30 140 140 16 0.17 0.08 0.220 0.000 0.09 0.77 140 0 0 882 0.1 32S/13E-30N03 1/15/2020 630 68 60 3.3 78.0 32 140 140 17 0.00 0.09 0.150 0.000 0.01 0.65 140 0 0 834 0.2 32S/13E-30N03 10/15/2019 560 67 60 3.2 76.0 31 150 140 17 0.14 0.09 0.170 0.000 0.11 0.86 150 0 0 875 0.2 32S/13E-30N03 7/9/2019 640 67 55 3.0 72.0 33 140 130 16 0.14 0.08 0.180 0.000 0.00 0.77 140 0 0 860 0.0 32S/13E-30N03 4/9/2019 580 71 51 3.1 68 30 150 130 16 0.18 0.09 0.2 ND 0.03 0.60 150 ND ND 867 ND 32S/13E-30N03 1/9/2019 560 69 54 3.2 72 31 150 130 16 0.084 0.087 0.2 ND ND 0.71 150 ND ND 858 ND 32S/13E-30N03 10/10/2018 540 68 59 3.4 71 32 150 130 16 ND 0.091 0.21 ND 0.012 0.53 150 ND ND 847 0.030 32S/13E-30N03 7/12/2018 550 62 54 3.2 69 31 150 120 15 0.16 0.084 0.17 ND 0.063 0.61 150 ND ND 866 0.076 32S/13E-30N03 4/11/2018 590 62 58 3.3 72 33 150 120 14 0.19 0.094 0.16 ND 0.006 0.51 150 ND ND 839 ND 32S/13E-30N03 1/11/2018 580 64 61 3.3 74 34 150 140 14 0.20 0.088 0.19 ND 0.33 0.61 150 ND ND 836 0.12 32S/13E-30N03 10/11/2017 580 63 54 3.2 73 33 150 130 15 0.24 0.1 0.16 ND 0.86 0.64 150 ND ND 836 0.59 32S/13E-30N03 7/11/2017 560 64 60 3.2 77 34 150 140 14 0.1 0.089 0.14 ND 0.54 0.66 150 ND ND 871 0.18 32S/13E-30N03 4/11/2017 560 69 62 3.6 82 36 160 140 14 0.12 0.08 0.15 ND 0.62 0.69 160 ND ND 866 0.43 32S/13E-30N03 1/12/2017 580 69 62 3.6 83 38 170 150 14 0.13 0.088 0.13 ND 3.3 0.74 170 ND ND 878 1.5 32S/13E-30N03 10/12/2016 580 68 62 3.5 80 37 170 140 15 ND 0.088 0.16 ND 0.56 0.76 170 ND ND 879 0.17 32S/13E-30N03 7/19/2016 580 66 61 3.6 75 36 160 130 14.683 0.20 0.084 0.16 <0.010 0.030 0.76 160 <4.1 <4.1 864 <0.030 32S/13E-30N03 4/12/2016 610 69 60 3.4 75 36 160 130 14.457 0.16 0.078 0.18 <0.010 0.0095 0.78 160 <4.1 <4.1 895 <0.05 32S/13E-30N03 1/13/2016 570 72 62 3.4 77 35 160 140 15 0.15 0.083 0.22 <0.010 0.0089 0.66 160 <4.1 <4.1 867 0.079 32S/13E-30N03 10/15/2015 570 63 54 3.3 69 32 162 130 15 <1 0.0161 0.23 <0.01 0.015 0.56 162 <10 <10 860 <0.05 32S/13E-30N03 7/16/2015 580 65 65 3.0 81 35 160 140 15 15.3 0.079 0.14 0.45 0.011 0.46 160 <10 <10 880 <0.05 32S/13E-30N03 4/14/2015 580 65 49 2.9 65 31 160 140 15.2 <1 0.078 <0.1 <0.01 <0.005 0.47 160 <10 <10 860 <0.05 32S/13E-30N03 1/14/2015 610 68 53 3.0 73 34 170 150 15 <1 0.074 0.151 <0.01 0.0540 0.43 170 <10 <10 870 0.49 32S/13E-30N03 10/15/2014 560 59 52 3.5 67 32 160 130 14 0.54 0.066 0.14 <0.01 <0.005 0.452 160 <10 <10 890 <0.05 32S/13E-30N03 7/30/2014 580 65 55 3.2 69 32 170 130 15 <1 <0.1 0.16 <0.01 <0.005 0.34 170 <10 <10 910 <0.05 32S/13E-30N03 4/16/2014 610 63 55 4.3 65 29 170 140 13.00 <1 0.08 0.15 <0.01 0.058 0.38 170 <10 <10 910 <0.05 32S/13E-30N03 1/15/2014 610 66 54 3.2 67 31 170 149 14.8 15 <0.1 0.16 <0.01 0.065 0.46 170 <10 <10 910 0.27 32S/13E-30N03 10/15/2013 580 60 57 3.3 71 32 170 150 14 <1 0.057 0.16 <0.01 0.370 0.41 170 <10 <10 910 0.1 32S/13E-30N03 7/10/2013 590 60 48 3.1 71 31 160 150 15.1 <1 0.074 0.18 <0.01 1.3 0.17 160 <10 <10 900 0.43 32S/13E-30N03 4/10/2013 600 66 53 3.3 69 31 160 150 15 <1 0.11 0.2 <0.01 0.064 0.35 160 <10 <10 910 <0.05 32S/13E-30N03 1/14/2013 570 66 55 3.4 68 30 165 150 15 <1 0.093 0.2 <0.01 0.028 0.27 165 <10 <10 900 0.084 32S/13E-30N03 10/29/2012 610 60 56 3.7 74 33 155 148 14 <1 0.081 0.2 <0.01 0.027 0.3 155 <10 <10 900 0.04 32S/13E-30N03 7/23/2012 600 71 56 3.5 61 28 152 200 <0.05 <1 0.1 <0.1 <.002 0.120 0.3 152 <10 <10 890 0.44 32S/13E-30N03 4/18/2012 570 80 47 3.0 57 25 150 150 16 <1 0.1 0.3 <0.01 <0.005 0.28 150 <10 <10 880 <0.1 32S/13E-30N03 1/11/2012 570 67 55 3.9 68 30 140 130 14 <1 0.1 0.2 <0.02 0.0510 0.39 140 <10 <10 870 0.17 32S/13E-30N03 11/21/2011 600 67 47 3.2 64 28 140 130 15 1.2 0.088 0.2 <0.01 <0.005 0.62 140 <10 <10 850 <0.1 32S/13E-30N03 7/25/2011 590 67 47 5.0 54 24 290 139.8 15 <1 <0.1 0.2 <0.01 0.0520 0.79 290 <5 <5 890 0.14 32S/13E-30N03 4/20/2011 580 76 58 4.2 62 23 140 142 16 <1 0.12 0.2 <0.1 0.0510 0.92 140 <2.0 <2.0 890 NA 32S/13E-30N03 1/24/2011 570 76 48 4.8 55 25 130 130 16 <1.0 0.12 0.2 <0.10 0.0088 1.7 130 <2.0 <2.0 900 <0.1 32S/13E-30N03 10/21/2010 550 69 59 3.3 65 31 133 130 15 <1.0 <0.1 0.1 NA <0.005 1.1 133 <10 <10 886 <0.1 32S/13E-30N03 7/27/2010 528 72 55.1 3.41 68.7 31.0 139 130 15.0 < 0.50 0.0672 0.14 0.11 < 0.00500 1.3 139 < 1.0 < 1.0 860 < 0.100 32S/13E-30N03 4/27/2010 672 89 60.6 3.65 70.6 32.5 134 130 14.0 < 0.50 0.0779 0.18 0.11 < 0.00500 1.2 134 < 1.0 < 1.0 870 < 0.100 32S/13E-30N03 1/26/2010 606 110 75.0 4.51 77.8 34.3 126 130 14 1.4 0.0654 0.15 < 0.10 0.0130 1.3 126 < 1.0 < 1.0 990 0.653 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-31H10 10/5/2021 630 34 36 2.7 110 52 360 160 0.1 0.21 0.067 0.21 0.0083 0.12 0.12 360 8.2 8.2 1,020 4.5 32S/13E-31H10 7/14/2021 580 34 37 2.7 110 52 360 160 0.048 0.4 0.055 0.19 0.0086 0.15 0.13 360 8.2 8.2 1,020 5.6 32S/13E-31H10 4/6/2021 480 36 41 3.1 31 52 250 93 0.024 0.17 0.062 0.055 0.011 0.18 0.16 250 4.1 4.1 2 32S/13E-31H10 1/6/2021 380 37 51 7.2 13 47 210 61 0.024 0.48 0.082 0.048 0.016 0.1 0.16 220 11 4.1 614 1.3 32S/13E-31H10 10/7/2020 660 33 35 2.6 97.0 47 350 150 0 0.23 0.08 0.180 0.008 0.14 0.12 350 0 0 965 4.8 32S/13E-31H10 7/7/2020 510 42 51 5.0 27.0 48 220 99 0 0.10 0.08 0.052 0.022 0.17 0.20 220 4 4 720 1.9 32S/13E-31H10 4/21/2020 430 38 50 5.3 21.0 44 220 73 0 0.28 0.07 0.055 0.020 0.13 0.14 220 0 0 669 1.9 32S/13E-31H10 1/14/2020 520 36 42 3.7 80.0 51 310 130 0 0.11 0.08 0.160 0.014 0.20 0.09 310 0 0 843 4.4 32S/13E-31H10 10/14/2019 630 34 42 3.9 110.0 52 350 150 0 0.00 0.08 0.140 0.000 0.20 0.00 350 0 0 974 6.6 32S/13E-31H10 7/9/2019 650 44 50 3.4 110.0 57 320 200 0 0.24 0.09 0.180 0.026 0.21 0.19 320 0 0 1,030 6.0 32S/13E-31H10 4/9/2019 630 43 48 3.4 100 50 320 200 ND 0.17 0.099 0.21 0.015 0.18 0.15 320 ND ND 1,040 4.8 32S/13E-31H10 1/8/2019 620 35 41 3.3 100 54 340 160 ND 0.17 0.081 0.18 0.012 0.16 0.14 340 ND ND 973 5.6 32S/13E-31H10 10/9/2018 590 33 45 5.3 88 54 330 120 ND 0.20 0.075 0.11 0.011 0.16 0.08 330 ND ND 916 6.5 32S/13E-31H10 7/12/2018 510 34 46 6.0 45 54 300 96 ND 0.23 0.080 0.12 0.012 0.12 0.16 300 ND ND 846 3.8 32S/13E-31H10 4/10/2018 690 41 51 3.5 120 55 310 200 ND 0.16 0.089 0.19 0.016 0.21 0.15 310 ND ND 1,020 4.7 32S/13E-31H10 1/10/2018 660 35 44 3.3 110 56 350 170 ND 0.23 0.075 0.20 0.016 0.2 0.17 350 ND ND 1,020 5.3 32S/13E-31H10 10/11/2017 640 33 41 3.1 120 57 360 160 ND 0.38 0.083 0.18 ND 0.21 0.13 450 89 ND 1070 4.3 32S/13E-31H10 7/11/2017 720 36 48 3.8 120 60 350 170 ND 0.17 0.09 0.15 0.011 0.17 0.13 350 ND ND 1,020 4.7 32S/13E-31H10 4/12/2017 600 39 47 3.4 120 62 340 190 ND ND 0.09 0.19 0.013 0.19 0.22 340 ND ND 1,020 5.2 32S/13E-31H10 1/13/2017 670 34 45 3.4 130 60 370 180 ND 0.16 0.076 0.17 0.014 0.22 0.1 370 ND ND 1,020 7.8 32S/13E-31H10 10/12/2016 700 33 40 3.2 120 59 380 170 ND 0.22 0.062 0.18 0.012 0.15 0.12 380 ND ND 1040 5.3 32S/13E-31H10 7/20/2016 630 33 42 4.4 99 57 370 150 <0.022 0.3 0.068 0.14 <0.01 0.19 0.14 370 <8.2 <8.2 991 8.9 32S/13E-31H10 4/13/2016 670 37 46 3.4 120 57 350 180 <0.022 0.21 0.078 0.19 0.011 0.23 0.14 350 <8.2 <8.2 1,030 6.7 32S/13E-31H10 1/13/2016 380 37 49 9.9 6.8 46 170 54 <0.022 0.43 0.044 0.088 0.014 0.084 0.19 210 34 <4.1 603 2.2 32S/13E-31H10 10/14/2015 320 32 33 2.7 17 48 216 68 <0.05 <1 0.089 0.12 0.016 0.098 <0.10 227 11 <10 600 1.4 32S/13E-31H10 7/15/2015 330 34 44 3.4 15 54 195 81 <0.05 <1 0.082 <0.1 <0.01 0.081 <0.1 213 18 <10 610 0.98 32S/13E-31H10 4/16/2015 660 35 33 2.7 99 48 360 170 <0.05 <1 0.083 0.163 <0.01 0.17 <0.1 360 <10 <10 1,000 4.6 32S/13E-31H10 1/14/2015 760 55 56 3.0 110 50 300 250 <0.05 <1 0.11 0.159 0.021 0.17 <0.1 300 <10 <10 1,070 4.2 32S/13E-31H10 10/16/2014 720 41 46 3.7 110 53 330 200 <0.05 <1 0.10 <0.1 <0.01 0.17 <0.1 330 <10 <10 1,090 6.5 32S/13E-31H10 7/30/2014 660 34 35 2.4 95 49 420 160 <0.05 <1 <0.1 0.16 <0.01 0.17 <0.1 420 <10 <10 1,040 6.5 32S/13E-31H10 4/17/2014 890 55 70 5.4 100 45 250 380 <0.05 <1 0.15 0.12 0.01 0.31 0.13 250 <10 <10 1,260 4.9 32S/13E-31H10 1/16/2014 900 57 66 4.60 110 50 240 360 <0.05 <1 0.180 0.2 0.02 0.32 <0.1 240 <10 <10 1,260 6.0 32S/13E-31H10 10/16/2013 690 30 40 3.40 100 49 340 190 <0.05 <1 0.091 0.14 <0.01 0.23 <0.1 340 <10 <10 1,050 7.4 32S/13E-31H10 7/11/2013 860 60 50 4.40 110 47 240 340 <0.05 <1 0.18 0.15 0.02 0.28 <0.1 240 <10 <10 1,230 4.9 32S/13E-31H10 4/11/2013 900 60 69 4.60 110 47 250 350 0.82 <1 0.2 0.12 0.03 0.28 <0.2 250 <10 <10 1,250 5.7 32S/13E-31H10 1/16/2013 820 66 76 5.00 100 47 260 320 <0.1 <1 0.21 0.13 <0.01 0.31 <0.2 260 <10 <10 1,230 4.2 32S/13E-31H10 10/30/2012 780 65 75 4.70 100 46 255 280 <0.05 <1 0.19 0.14 0.04 0.23 <0.1 255 <10 <10 1,190 4 32S/13E-31H10 7/25/2012 830 76 80 5.30 96 45 250 310 <0.05 <1 0.22 0.15 0.04 0.24 <0.1 250 <10 <10 1,220 6.7 32S/13E-31H10 4/19/2012 790 87 69 4.50 52 37 250 270 <0.1 <1 0.19 0.21 0.05 0.17 <0.2 250 <10 <10 1,180 4 32S/13E-31H10 1/12/2012 760 76 85 4.00 79 40 270 190 <0.1 <1 0.23 0.21 0.069 0.23 <0.2 270 <10 <10 1,150 4.8 32S/13E-31H10 11/21/2011 720 39 38 3.40 96 43 320 180 <0.05 3.5 0.079 0.19 0.013 0.17 <0.1 320 <10 <10 1,050 4.8 32S/13E-31H10 7/25/2011 760 69 66 6.40 80 35 310 208.8 <0.05 <1 0.16 0.17 0.041 0.23 0.199 310 <5 <5 1,170 5.3 32S/13E-31H10 1/24/2011 310 98 22 8.1 34 9.2 19.0 53 <0.05 <1.0 <0.1 0.2 4.42 0.4 0.63 19.0 <2.0 <2.0 480 10 32S/13E-31H10 10/28/2010 290 81 26 9.3 64 11 160.0 68 <0.1 <1.0 <0.1 0.2 NA 0.85 0.36 160.0 <10 <10 520 38 32S/13E-31H10 7/26/2010 438 85 34.3 1.93 61.7 30.4 30.0 210 < 0.10 < 0.50 0.0435 0.58 0.22 1.46 0.32 30.0 < 1.0 < 1.0 690 36 32S/13E-31H10 4/26/2010 560 83 47.7 5.7 86.1 48.3 62 310 < 0.10 0.84 < 0.02 < 0.1 0.56 2.54 0.31 62.0 < 1.0 < 1.0 880 233 32S/13E-31H10 1/27/2010 460 130 45.0 25.4 682 124 112 100 0.56 NA < 0.0200 0.21 0.25 32.4 0.49 112.0 < 1.0 < 1.0 760 4,360 32S/13E-31H10 10/20/2009 362 92 39.6 2.92 19.2 45.1 76.8 110 < 0.10 < 0.50 0.0697 < 0.10 < 0.10 0.242 0.39 80.0 3.2 < 1.0 590 11.4 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-31H11 10/5/2021 680 37 44 3.3 120 53 340 200 0.1 0.2 0.08 0.19 0.0089 0.23 0.12 340 8.2 8.2 1,060 5.1 32S/13E-31H11 7/14/2021 640 37 41 3 110 50 350 210 0.024 0.13 0.06 0.19 0.012 0.22 0.15 350 8.2 8.2 1,070 4.8 32S/13E-31H11 4/6/2021 680 37 42 3 110 49 340 210 0.024 0.15 0.072 0.2 0.011 0.2 0.15 340 8.2 8.2 4.6 32S/13E-31H11 1/6/2021 620 38 47 3.5 120 55 340 210 0.024 0.49 0.087 0.2 0.015 0.22 0.18 340 8.2 8.2 1,050 4.9 32S/13E-31H11 10/7/2020 680 37 41 3.6 110.0 55 330 200 0 0.13 0.09 0.210 0.000 0.22 0.12 330 0 0 1,020 11.0 32S/13E-31H11 7/7/2020 410 62 69 5.2 3.1 41 140 57 0 0.20 0.11 0.056 0.051 0.02 0.32 170 36 4 636 0.9 32S/13E-31H11 4/21/2020 450 60 59 4.4 5.1 45 170 85 0 0.21 0.10 0.068 0.054 0.04 0.26 180 14 0 698 0.7 32S/13E-31H11 1/14/2020 680 73 76 3.6 110.0 44 300 210 0 0.11 0.17 0.200 0.075 0.18 0.26 300 0 0 1,070 3.8 32S/13E-31H11 10/14/2019 750 48 56 3.7 120.0 50 320 200 0 0.00 0.11 0.160 0.027 0.24 0.15 320 0 0 1,070 5.7 32S/13E-31H11 7/9/2019 650 61 73 4.0 110.0 52 310 210 0 0.17 0.16 0.170 0.054 0.24 0.28 310 0 0 1,110 5.9 32S/13E-31H11 4/9/2019 700 61 66 3.7 110 48 300 240 ND 0.18 0.140 0.20 0.041 0.19 0.27 300 ND ND 1,140 3.7 32S/13E-31H11 1/8/2019 730 39 45 3.6 120 52 340 220 ND 0.14 0.087 0.18 0.016 0.24 0.13 340 ND ND 1090 8.2 32S/13E-31H11 10/9/2018 720 37 49 3.8 130 59 340 210 ND 0.24 0.091 0.15 0.015 0.23 0.08 340 ND ND 1,090 8.2 32S/13E-31H11 7/12/2018 720 36 43 3.6 120 54 340 190 ND 0.27 0.082 0.17 0.014 0.25 0.15 340 ND ND 1,110 7.2 32S/13E-31H11 4/10/2018 780 73 81 3.8 110 47 300 210 ND 0.090 0.17 0.18 0.066 0.24 0.40 300 ND ND 1,130 7.3 32S/13E-31H11 1/10/2018 750 39 51 3.7 130 57 340 220 ND 0.17 0.089 0.20 0.021 0.28 0.16 340 ND ND 1,090 5.9 32S/13E-31H11 10/11/2017 720 38 45 3.7 120 56 350 200 ND 0.22 0.13 0.18 0.015 0.22 0.14 350 ND ND 1080 5.6 32S/13E-31H11 7/11/2017 820 43 53 3.9 130 58 320 230 ND 0.11 0.11 0.13 0.018 0.29 0.19 320 ND ND 1,100 9.7 32S/13E-31H11 4/12/2017 720 45 53 3.8 120 56 320 250 ND ND 0.11 0.17 0.022 0.25 0.18 320 ND ND 1,100 6.3 32S/13E-31H11 1/13/2017 750 44 57 4 130 58 340 240 ND 0.11 0.11 0.13 0.024 0.29 0.15 340 ND ND 1,100 7.20 32S/13E-31H11 10/12/2016 780 41 49 3.9 120 57 350 220 ND 0.12 0.097 0.16 0.021 0.28 0.16 350 ND ND 1100 8.10 32S/13E-31H11 7/20/2016 420 120 64 6.8 4.3 38 60 39 <0.022 0.097 0.12 0.059 0.084 0.084 0.59 89 29 <4.1 617 9.0 32S/13E-31H11 4/13/2016 410 110 64 604 3.9 40 51 56 <0.022 <0.080 0.11 0.058 0.084 0.053 0.58 92 41 <4.1 628 6.7 32S/13E-31H11 1/13/2016 450 120 70 7.7 4.5 36 49 65 <0.022 <0.080 0.11 0.095 0.11 0.072 0.76 86 37 <4.1 675 8.6 32S/13E-31H11 10/14/2015 350 110 69 9.2 3.7 31 42 74 <0.05 <1 0.16 <0.10 0.099 0.036 0.44 75 33 <10 670 5.7 32S/13E-31H11 7/15/2015 380 120 85 11.0 4.3 35 40 85 <0.05 <1 0.19 <0.1 0.1 0.05 0.409 65 25 <10 690 9.6 32S/13E-31H11 4/16/2015 400 120 66 7.6 4.9 36 54 100 <0.05 <1 0.17 <0.1 0.088 0.039 0.481 76 22 <10 700 6.6 32S/13E-31H11 1/14/2015 420 125 68 7.0 6.4 37 45 126 <0.05 <1 0.15 <0.1 0.097 0.038 0.39 65 20 <10 720 3.5 32S/13E-31H11 10/16/2014 370 120 78 13.0 4.2 29 53 77 <0.05 <1 0.17 <0.1 0.11 0.040 0.35 88 <10 <10 740 4.5 32S/13E-31H11 7/30/2014 450 120 71 4.4 9.6 43 53 130 0.13 <1 0.15 0.12 0.1 0.078 0.29 73 20 <10 800 8 32S/13E-31H11 4/17/2014 370 120 89 14.0 2.4 17 76 39 <0.05 <1 0.16 <0.1 0.12 0.03 0.43 121 45 <10 720 3.7 32S/13E-31H11 1/16/2014 350 122 89 15 2 18 68 42 <0.05 <1 0.17 0.1 0.09 0.026 0.48 125 57.5 <10 710 2.3 32S/13E-31H11 10/16/2013 360 100 98 20 3.1 15 66 36 <0.05 <1 0.19 <0.1 0.11 0.057 0.38 139 73 <10 710 4.1 32S/13E-31H11 7/11/2013 370 140 70 6.3 4 23 82 40 0.4 <1 0.2 0.11 0.11 0.043 0.44 117 35 <10 730 3.2 32S/13E-31H11 4/11/2013 340 90 81 14 2.9 18 78 30 <0.05 <1 0.19 0.12 0.07 0.046 0.3 155 77.5 <10 650 3.2 32S/13E-31H11 1/16/2013 360 107 99 7.1 3.3 24 110 36 <0.05 <1 0.25 <0.1 <0.01 0.048 0.4 165 55 <10 720 3.7 32S/13E-31H11 10/30/2012 380 97 100 6.4 4.5 24 130 38 <0.05 <1 0.28 <0.1 0.1 0.09 0.2 168 38 <10 720 6.1 32S/13E-31H11 7/25/2012 240 49 56 11 5.4 22 99 43 <0.05 <1 0.16 0.19 0.023 0.11 <0.1 132 33 <10 470 6.6 32S/13E-31H11 4/19/2012 380 100 87 5.5 3.5 26 150 79 <0.1 <1 0.27 0.26 0.09 0.033 0.68 180 30 <10 750 1.6 32S/13E-31H11 1/12/2012 480 96 110 4.9 5.6 33 154 95 <0.1 <1 0.28 <0.2 0.11 0.01 0.306 180 26 <10 850 0.2 32S/13E-31H11 11/21/2011 390 90 78 4.6 5.2 24 111 86 <0.05 <1 0.19 0.13 0.092 0.014 0.28 128 17 <10 720 0.5 32S/13E-31H11 7/25/2011 260 29 23 5.3 8.7 20 84 80 <0.05 <1 <0.1 0.199 0.072 0.041 <0.1 89 <5 <5 440 2.7 32S/13E-31H11 4/21/2011 580 118 70 19 49 17 8.8 274 <0.05 <1 <0.1 0.29 0.109 0.091 0.4 11.3 2.5 <2.0 950 NA 32S/13E-31H11 1/24/2011 680 110 60 17 64 22 5.0 330 <0.05 <1.0 <0.1 0.22 0.96 0.16 0.31 11.2 6.2 <2.0 1,040 10.0 32S/13E-31H11 10/21/2010 770 100 68 12 88 31 14.0 380 <0.1 <1.0 <0.1 0.28 NA 0.054 <0.3 14.0 <10 <10 1,163 2.2 32S/13E-31H11 7/26/2010 783 130 80.1 8.58 142 42.0 2.8 450 < 0.10 < 0.50 < 0.0200 0.26 0.31 3.97 0.8 2.8 < 1.0 < 1.0 1,200 593 32S/13E-31H11 4/26/2010 1,130 160 70.2 6.48 208 50.7 8.4 530 < 0.10 0.56 < 0.02 0.23 0.54 3.10 1.0 8.4 < 1.0 < 1.0 1,600 383 32S/13E-31H11 1/27/2010 1,740 430 55.6 4.98 282 43.0 < 1.0 680 < 0.10 < 0.50 0.0819 0.14 0.41 9.41 2.0 < 1.0 < 1.0 < 1.0 2,300 170 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-31H13 10/5/2021 500 100 83 3.8 11 43 200 41 0.1 0.11 0.17 0.067 0.051 0.22 0.33 210 8.4 4.1 772 0.5 32S/13E-31H13 7/14/2021 490 99 85 3.6 13 35 210 29 0.024 0.088 0.16 0.059 0.049 0.13 0.34 220 9 4.1 760 0.76 32S/13E-31H13 4/6/2021 430 110 97 4.2 2.9 28 170 0.52 0.024 0.088 0.19 0.066 0.056 0.061 0.36 210 38 4.1 0.16 32S/13E-31H13 1/6/2021 480 110 98 4.4 3 28 170 0.48 0.024 0.3 0.21 0.054 0.063 0.063 0.35 210 33 4.1 678 0.18 32S/13E-31H13 10/7/2020 530 100 98 4.3 3.8 31 180 0 0 0.00 0.22 0.063 0.059 0.07 0.32 210 32 0 685 0.9 32S/13E-31H13 7/7/2020 500 110 100 4.4 3.2 29 180 2 0 0.20 0.21 0.054 0.069 0.05 0.35 200 25 4 729 0.2 32S/13E-31H13 4/21/2020 470 100 100 4.8 2.6 30 180 0 0 0.08 0.20 0.064 0.079 0.05 0.36 220 37 0 721 0.4 32S/13E-31H13 1/14/2020 430 120 110 4.6 3.3 29 190 10 0 0.00 0.25 0.084 0.094 0.05 0.28 220 35 0 730 0.4 32S/13E-31H13 10/14/2019 280 99 93 4.7 2.7 32 180 1 0 0.00 0.18 0.064 0.066 0.05 0.30 210 37 0 675 0.3 32S/13E-31H13 7/9/2019 500 90 83 4.7 3.7 36 170 1 0 0.08 0.16 0.062 0.059 0.08 0.35 200 26 0 654 2.9 32S/13E-31H13 4/9/2019 460 100 79 4.0 3.8 34 180 8 ND 0.05 0.18 0.075 0.055 0.07 0.31 210 27 ND 690 2.1 32S/13E-31H13 1/8/2019 400 99 79 4.3 6.7 42 180 19 ND 0.06 0.17 0.057 0.057 0.13 0.29 200 19 ND 703 2.2 32S/13E-31H13 10/9/2018 400 84 79 4.2 4.9 43 190 13 ND 0.052 0.16 0.043 0.045 0.083 0.18 220 23 ND 678 2.1 32S/13E-31H13 7/12/2018 470 81 72 3.9 3.9 38 190 13 ND 0.096 0.14 0.041 0.045 0.064 0.31 220 25 ND 699 0.86 32S/13E-31H13 4/10/2018 490 82 78 3.8 4.5 44 190 20 ND ND 0.14 0.039 0.041 0.083 0.30 220 30 ND 676 4.2 32S/13E-31H13 1/10/2018 430 75 75 3.8 4.3 38 190 7.2 ND ND 0.14 0.050 0.046 0.07 0.25 210 26 ND 626 2.5 32S/13E-31H13 10/11/2017 390 77 70 3.7 4.9 38 190 15 ND 0.11 0.16 0.034 0.039 0.079 0.28 220 29 ND 648 1.1 32S/13E-31H13 7/11/2017 390 76 80 3.9 7.8 45 190 30 ND ND 0.15 0.033 0.036 0.13 0.28 210 19 ND 680 2.2 32S/13E-31H13 4/12/2017 430 79 87 4.4 4 44 180 21 ND 0.13 0.17 0.024 0.043 0.77 0.28 220 40 ND 667 4.5 32S/13E-31H13 1/13/2017 480 81 95 4.7 3.9 41 190 14 ND ND 0.19 0.037 0.056 0.065 0.31 220 33 ND 652 3.3 32S/13E-31H13 10/12/2016 410 80 87 4.3 4.2 43 190 22 ND ND 0.18 0.04 0.055 0.072 0.29 220 33 ND 678 2.3 32S/13E-31H13 7/20/2016 510 91 99 5.1 2.4 34 170 19 <0.022 <0.080 0.22 0.043 0.054 0.038 0.43 210 44 <4.1 694 1.2 32S/13E-31H13 4/13/2016 450 94 99 4.6 2.5 33 150 25 <0.022 <0.080 0.22 0.054 0.045 0.035 0.44 200 51 <4.1 701 1.2 32S/13E-31H13 1/13/2016 460 99 97 4.8 2.6 32 150 30 <0.022 <0.080 0.19 0.084 <0.010 0.038 0.53 190 43 <4.1 717 0.33 32S/13E-31H13 10/14/2015 370 85 91 4.8 3.1 32 159 45 <0.05 <1 0.23 <0.10 0.060 0.043 0.26 189 30 <10 710 0.30 32S/13E-31H13 7/15/2015 390 90 99 4.4 2.7 34 145 55 <0.05 <1 0.21 <0.1 0.06 0.034 0.24 185 40 <10 730 0.24 32S/13E-31H13 4/16/2015 360 89 86 4.8 2.6 31 137 58 <0.05 <1 0.20 <0.1 0.057 0.030 0.266 172 35 <10 680 0.42 32S/13E-31H13 1/14/2015 390 90 84 4.8 2 31 140 61 <0.05 <1 0.18 <0.1 0.059 0.035 0.24 170 30 <10 670 0.47 32S/13E-31H13 10/16/2014 370 80 84 5.0 3.2 32 146 59 <0.05 <1 0.19 <0.1 0.055 0.044 0.18 170 24 <10 720 0.61 32S/13E-31H13 7/30/2014 380 86 81 4.2 3.6 35 158 61 <0.05 <1 0.16 <0.1 0.05 0.047 0.17 175 17 <10 730 0.25 32S/13E-31H13 4/17/2014 380 84 86 5.2 3 26 120 87 <0.05 <1 0.18 <0.1 0.08 0.032 0.3 143 23 <10 730 0.45 32S/13E-31H13 1/16/2014 390 89 91 5.0 4.1 34 119 103 <0.05 <1 0.20 <0.1 0.06 0.043 0.34 136 17 <10 740 0.30 32S/13E-31H13 10/16/2013 410 84 87 4.7 5.3 33 114 130 <0.05 <1 0.17 <0.1 0.08 0.053 0.3 124 10 <10 760 0.28 32S/13E-31H13 7/11/2013 420 80 70 4.8 4.5 35 116 120 <0.05 <1 0.19 <0.1 0.06 0.047 0.21 136 20 <10 760 0.19 32S/13E-31H13 4/11/2013 450 77 77 4.7 5.8 38 113 150 <0.05 <1 0.19 <0.1 0.06 0.069 0.2 128 15 <10 780 0.15 32S/13E-31H13 1/15/2013 420 74 78 4.7 7.0 40 110 180 <0.05 <1 0.18 <0.1 <0.01 0.087 <0.1 125 15 <10 810 0.55 32S/13E-31H13 10/30/2012 380 88 99 5.7 3.3 30 160 63 <0.05 <1 0.25 <0.1 0.08 0.035 0.3 168 7.5 <10 740 0.33 32S/13E-31H13 7/25/2012 390 108 107 5.5 2.7 29 13 66 <0.05 <1 0.28 <0.1 0.079 0.0037 0.23 168 155 <10 750 0.84 32S/13E-31H13 4/19/2012 390 110 83 4.3 2.5 26 400 68 <0.1 <1 0.22 0.23 0.09 0.032 0.39 420 20 <10 790 0.24 32S/13E-31H13 1/12/2012 410 94 95 4.5 3.0 28 300 68 <0.1 <1 0.24 <0.2 0.1 0.032 0.31 320 20 <10 760 0.89 32S/13E-31H13 11/21/2011 410 94 83 4.6 3.4 30 152 72 <0.05 <1 0.21 <0.1 0.09 0.035 0.3 160 8 <10 730 0.65 32S/13E-31H13 7/25/2011 420 90 84 7.1 4.4 31 148 91.8 <0.05 <1 0.20 <0.1 0.071 0.046 0.297 150 2.5 <5 760 1.90 32S/13E-31H13 4/21/2011 380 88 110 6.3 4.0 27 140 101 <0.05 <1 0.41 0.14 0.07 0.13 0.33 140 <2.0 <2.0 750 N/A 32S/13E-31H13 1/24/2011 430 83 73 6 6.3 31 160 100 <0.05 <1.0 0.22 0.11 0.66 0.078 0.28 160 <2.0 <2.0 780 0.49 32S/13E-31H13 10/21/2010 410 87 100 3.9 6.0 33 148 100 <0.1 <1.0 0.14 <0.1 NA 0.087 <0.3 148 <10 <10 796 0.66 32S/13E-31H13 7/26/2010 446 94 93.0 8.81 10.2 32.0 38.4 120 < 0.10 < 0.50 0.142 < 0.10 0.32 0.196 0.48 56.0 17.6 < 1.0 700 22.4 32S/13E-31H13 4/26/2010 416 96 87.6 9.86 14.8 37.1 46.0 150 < 0.1 0.63 0.132 < 0.10 0.39 0.579 0.44 58.0 12.0 < 1.0 780 56.2 32S/13E-31H13 1/27/2010 498 89 79.6 10.2 15.6 38.0 31.0 180 < 0.10 0.56 0.132 < 0.10 0.19 0.283 0.38 51.0 20.0 < 1.0 810 23.6 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 32S/13E-31H09 10/5/2021 690 45 47 2.5 110 49 350 170 0.1 0.32 0.078 0.13 0.1 0.031 0.15 350 8.2 8.2 1,050 0.05 32S/13E-31H09 7/14/2021 620 45 47 2.5 110 50 360 170 0.048 0.23 0.068 0.13 0.016 0.032 0.18 360 8.2 8.2 1,070 0.11 32S/13E-31H09 4/6/2021 650 45 45 2.3 110 48 360 170 0.033 0.14 0.07 0.13 0.012 0.034 0.19 360 8.2 8.2 0.23 32S/13E-31H09 1/7/2021 600 46 48 2.6 110 51 350 170 0.026 0.43 0.071 0.14 0.018 0.037 0.2 350 8.2 8.2 1,060 0.2 32S/13E-31H09 10/13/2020 670 46 46 2.5 110.0 47 350 170 0 0.00 0.07 0.130 0.017 0.03 0.17 350 0 0 1,050 0.2 32S/13E-31H09 7/7/2020 780 44 49 2.6 120.0 53 370 170 0 0.20 0.07 0.110 0.018 0.04 0.13 370 8 8 1,060 0.2 32S/13E-31H09 4/21/2020 620 42 48 2.7 120.0 50 380 170 0 0.19 0.07 0.160 0.018 0.04 0.14 380 0 0 1,070 0.3 32S/13E-31H09 1/14/2020 670 44 50 2.8 130.0 52 350 170 0 0.11 0.08 0.130 0.021 0.04 0.16 350 0 0 1,010 0.3 32S/13E-31H09 10/15/2019 670 43 51 2.7 120.0 50 360 170 0 0.10 0.07 0.110 0.016 0.04 0.16 360 0 0 1,060 0.2 32S/13E-31H09 4/9/2019 620 43 44 2.5 110 50 360 170 ND 0.11 0.08 0.14 0.013 0.033 0.14 360 ND ND 1,060 0.05 32S/13E-31H09 1/8/2019 690 44 44 2.6 110 52 370 170 0.047 0.11 0.075 0.16 0.018 0.035 0.15 370 ND ND 1,060 0.080 32S/13E-31H09 10/9/2018 690 42 46 2.7 110 54 360 170 0.03 0.15 0.067 0.11 0.017 0.035 0.09 360 ND ND 1,080 0.042 32S/13E-31H09 7/10/2018 630 46 47 2.6 120 53 360 170 ND 0.11 0.073 0.13 0.018 0.032 0.17 360 ND ND 1,100 0.041 32S/13E-31H09 4/10/2018 700 44 45 2.5 110 51 360 170 0.074 0.11 0.068 0.13 0.016 0.035 0.17 360 ND ND 1,060 0.10 32S/13E-31H09 1/10/2018 680 40 46 2.6 120 53 360 160 ND 0.14 0.062 0.16 0.019 0.048 0.14 360 ND ND 1,040 0.38 32S/13E-31H09 10/11/2017 640 40 47 2.6 120 55 370 160 0.024 0.12 0.079 0.13 0.016 0.046 0.13 370 ND ND 1020 0.34 32S/13E-31H09 7/11/2017 750 40 48 2.8 120 56 360 170 ND ND 0.075 0.11 0.015 0.057 0.15 360 ND ND 1,050 0.42 32S/13E-31H09 4/12/2017 620 42 52 3.1 130 60 360 170 0.037 ND 0.082 0.17 0.017 0.05 0.14 360 ND ND 1,040 0.30 32S/13E-31H09 1/11/2017 640 61 53 3 100 48 320 150 ND ND 0.071 0.16 0.02 0.05 0.24 320 ND ND 976 0.40 32S/13E-31H09 10/12/2016 720 46 49 2.8 120 56 370 170 0.029 0.18 0.069 0.12 0.021 0.041 0.18 370 ND ND 1070 0.36 32S/13E-31H09 7/20/2016 680 45 50 2.9 120 56 370 160 0.0407 0.14 0.075 0.15 0.013 0.049 0.16 370 <8.2 <8.2 1,060 0.33 32S/13E-31H09 4/13/2016 670 43 48 2.9 110 57 350 160 <0.022 0.2 0.062 0.14 0.012 0.056 0.18 350 <8.2 <8.2 1,040 0.46 32S/13E-31H09 1/12/2016 630 48 48 2.8 110 54 350 180 0.051 0.14 0.042 0.24 0.017 0.047 0.36 350 <8.2 <8.2 1,100 0.46 32S/13E-31H09 10/14/2015 680 43 44 3.1 100 50 360 160 <0.05 <1 0.089 0.28 0.02 0.033 <0.10 360 <10 <10 1,060 0.18 32S/13E-31H09 7/15/2015 680 43 52 2.4 120 56 360 170 <0.05 <1 0.079 0.11 0.01 0.033 <0.1 360 <10 <10 1,070 0.13 32S/13E-31H09 4/16/2015 680 49 41 2.4 100 47 350 170 <0.05 <1 0.068 0.114 <0.01 0.039 <0.1 350 <10 <10 1,030 0.47 32S/13E-31H09 10/16/2014 670 40 43 2.8 110 50 3500 150 <0.05 <1 0.055 0.103 <0.01 0.03 <0.1 350 <10 <10 1,060 0.064 32S/13E-31H09 7/30/2014 670 43 43 2.2 110 48 360 160 <0.05 <1 <0.1 0.15 <0.01 0.029 <0.1 360 <10 <10 1,070 0.057 32S/13E-31H09 4/15/2014 680 42 43 3.3 87 43 340 170 <0.05 <1 0.09 0.11 <0.01 0.023 <0.1 340 <10 <10 1,070 0.05 32S/13E-31H09 1/16/2014 680 45 42 2.6 100 46 360 171 <0.05 <1 <0.05 0.13 <0.01 0.032 <0.1 360 <10 <10 1,060 0.18 32S/13E-31H09 10/16/2013 670 40 44 2.6 100 47 350 180 0.47 <1 <0.05 0.15 <0.01 0.03 <0.1 350 <10 <10 1,053 0.11 32S/13E-31H09 7/10/2013 670 44 43 2.8 110 52 350 180 <0.05 <1 0.072 0.12 <0.01 0.032 <0.1 350 <10 <10 1,070 0.11 32S/13E-31H09 4/11/2013 720 43 40 2.7 98 46 350 170 <0.05 <1 0.072 0.14 <0.01 0.029 <0.1 350 <10 <10 1,070 0.12 32S/13E-31H09 1/16/2013 660 43 43 2.7 100 47 360 180 <0.05 <1 0.07 0.1 <0.01 0.031 <0.1 360 <10 <10 1,060 0.130 32S/13E-31H09 10/30/2012 660 40 44 2.9 110 49 345 170 <0.05 <1 0.071 0.14 <0.01 0.03 <0.1 345 <10 <10 1,070 0.086 32S/13E-31H09 7/24/2012 700 47 44 2.8 93 45 356 180 <0.05 <1 <0.1 0.17 <0.01 0.029 <0.1 356 <10 <10 1,070 0.660 32S/13E-31H09 4/25/2012 680 48 44 2.7 95 43 350 200 <0.1 <1 <0.1 0.26 <0.01 0.032 <0.2 350 <10 <10 1,070 0.200 32S/13E-31H09 1/10/2012 690 45 44 2.6 100 44 340 160 <0.05 <1 <0.1 0.2 <0.01 0.024 <0.1 340 <10 <10 1,070 0.100 32S/13E-31H09 11/22/2011 690 41 39 2.7 100 46 350 160 <0.1 <1 0.046 <0.2 0.013 0.03 <0.2 350 <10 <10 1,010 0.0 32S/13E-31H09 7/25/2011 690 44 39 4.5 86 40 340 166.9 <0.05 <1 <0.1 0.145 <0.01 0.026 <0.1 340 <5 <5 1,070 <0.1 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 12N/36W-36L01 10/6/2021 890 33 67 3.3 130 44 180 400 0.39 0.2 0.15 0.1 0.1 0.01 0.4 180 8.2 8.2 0.05 12N/36W-36L01 7/15/2021 840 34 63 3.3 120 43 180 420 0.42 0.088 0.17 0.05 0.005 0.004 0.14 180 8.2 8.2 1,180 0.03 12N/36W-36L01 4/8/2021 840 38 67 3.4 130 44 180 420 0.45 0.19 0.16 0.047 0.005 0.004 0.07 180 8.2 8.2 1,170 0.03 12N/36W-36L01 1/7/2021 820 39 69 3.3 130 47 180 430 0.46 0.48 0.16 0.053 0.005 0.004 0.17 180 8.2 8.2 1,170 0.03 12N/36W-36L01 10/11/2020 940 39 67 3.3 130.0 44 180 440 0 0.14 0.16 0.046 0.000 0.00 0.10 180 0 0 1,180 0.1 12N/36W-36L01 7/8/2020 1,000 40 71 3.5 130.0 46 180 430 0 0.20 0.17 0.051 0.100 0.01 0.13 180 8 8 1,190 0.1 12N/36W-36L01 4/22/2020 880 38 65 3.3 120.0 42 180 420 0 0.14 0.16 0.034 0.000 0.00 0.08 180 0 0 1,210 0.1 12N/36W-36L01 1/15/2020 960 39 70 3.6 140.0 45 180 420 0 0.13 0.18 0.056 0.000 0.00 0.09 180 0 0 1,140 0.1 12N/36W-36L01 10/15/2019 880 38 73 3.6 140.0 45 180 440 0 0.09 0.18 0.044 0.000 0.00 0.12 180 0 0 1,190 0.1 12N/36W-36L01 7/10/2019 700 37 70 3.6 140.0 51 180 430 0 0.15 0.17 0.047 0.000 0.00 0.00 180 0 0 1,180 0.0 12N/36W-36L01 4/10/2019 870 39 64 3.5 130 48 180 440 0.46 1.5 0.2 0.06 ND ND 0.14 180 ND ND 1,190 0.08 12N/36W-36L01 1/9/2019 840 39 70 3.4 140 46 180 420 0.45 0.23 0.17 0.064 ND ND 0.089 180 ND ND 1,200 ND 12N/36W-36L01 10/10/2018 850 38 67 3.5 140 49 180 430 0.43 0.16 0.16 0.03 ND ND ND 180 ND ND 1,190 0.19 12N/36W-36L01 7/10/2018 960 39 64 3.4 130 47 180 430 0.50 0.11 0.17 0.12 ND ND 0.063 180 ND ND 1,230 ND 12N/36W-36L01 4/11/2018 900 39 70 3.5 140 49 180 430 0.48 0.11 0.16 0.052 ND ND 0.10 180 ND ND 1,190 ND 12N/36W-36L01 1/11/2018 940 38 76 3.5 140 50 180 440 0.37 0.19 0.17 0.073 ND ND 0.097 180 ND ND 1,180 ND 12N/36W-36L01 10/11/2017 880 35 65 3.7 140 50 190 430 0.43 0.14 0.19 0.048 ND 0.054 ND 190 ND ND 1210 0.23 12N/36W-36L01 7/12/2017 1,000 37 73 3.9 150 55 180 420 0.36 0.15 0.17 0.034 ND 0.0048 ND 180 ND ND 1,180 0.23 12N/36W-36L01 4/12/2017 860 37 73 4 130 49 180 420 0.45 0.14 0.17 0.017 ND 0.0087 0.06 180 ND ND 1,170 0.43 12N/36W-36L01 1/12/2017 870 38 76 3.8 150 55 190 430 0.46 0.12 0.21 0.036 ND ND 0.07 190 ND ND 1,180 0.11 12N/36W-36L01 10/12/2016 890 35 72 3.8 140 56 190 430 0.42 0.11 0.17 0.036 ND ND 0.12 190 ND ND 1220 0.037 12N/36W-36L01 7/19/2016 920 37 69 3.6 130 50 180 430 0.4292 0.25 0.15 0.043 <0.010 <0.0040 0.10 180 <8.2 <8.2 1,200 <0.030 12N/36W-36L01 4/12/2016 860 38 65 3.5 130 49 180 390 0.5 <0.080 0.16 0.036 <0.010 <0.0040 0.12 180 <8.2 <8.2 1,210 <0.05 12N/36W-36L01 1/14/2016 890 36 64 3.4 130 49 180 410 0.47 <0.080 0.15 0.062 <0.010 <0.0040 0.10 180 <8.2 <8.2 1,210 0.070 12N/36W-36L01 10/15/2015 920 37 63 4.2 120 47 180 400 0.68 <1 0.15 <0.20 <0.01 <0.005 <0.20 180 <10 <10 1,210 <0.05 12N/36W-36L01 7/16/2015 930 39 74 2.8 140 50 180 410 1.2 <1 0.15 <0.1 <0.01 <0.005 <0.1 180 <10 <10 1,210 <0.05 12N/36W-36L01 4/14/2015 890 38 55 3.1 110 44 180 440 0.759 1.0 0.16 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,160 <0.05 12N/36W-36L01 1/13/2015 880 39 59 3.0 120 45 180 440 0.584 <1 0.14 <0.1 <0.01 <0.005 <0.1 180 <10 <10 1,160 <0.05 12N/36W-36L01 10/15/2014 910 34 58 3.7 120 43 180 380 0.950 <1 0.14 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,210 <0.05 12N/36W-36L01 7/30/2014 890 36 61 3.2 120 47 180 390 0.603 <1 0.12 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,220 <0.05 12N/36W-36L01 4/16/2014 910 36 46 2.6 76 27 180 440 0.77 <1 0.15 <0.1 <0.01 <0.005 <0.1 180 <10 <10 1,200 <0.05 12N/36W-36L01 1/16/2014 910 35 60 3.1 110 42 180 416 1.00 1.1 0.14 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,190 <0.05 12N/36W-36L01 10/16/2013 910 40 63 4.5 120 43 170 460 0.76 <1 0.13 <0.2 <0.01 <0.005 <0.2 170 <10 <10 1,210 <0.05 12N/36W-36L01 7/10/2013 910 39 54 3.2 120 42 175 430 0.78 <1 0.14 <0.1 <0.01 <0.005 <0.1 175 <10 <10 1,210 0.18 12N/36W-36L01 4/11/2013 890 38 59 3.6 110 43 180 420 0.82 <1 0.16 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,200 <0.05 12N/36W-36L01 1/15/2013 870 39 61 3.4 110 41 178 440 0.57 <1 0.15 <0.2 <0.01 <0.005 <0.2 178 <10 <10 1,190 0.13 12N/36W-36L01 10/31/2012 910 35 66 4.0 130 46 165 400 1.60 <1 0.16 0.2 <0.01 <0.005 <0.5 165 <10 <10 1,200 <0.05 12N/36W-36L01 7/24/2012 880 43 65 3.9 110 41 168 420 <0.05 <1 0.16 <0.1 <0.01 0.02 <0.1 168 <10 <10 1,190 0.19 12N/36W-36L01 4/18/2012 880 47 52 3.2 95 36 180 450 0.42 <1 0.12 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,190 <0.1 12N/36W-36L01 1/11/2012 790 41 64 4.1 120 44 170 380 1.30 <1 0.19 0.18 <0.02 <0.005 <0.2 170 <10 <10 1,190 <0.1 12N/36W-36L01 11/21/2011 910 39 55 3.5 110 40 180 380 0.37 <1 0.16 <0.2 <0.01 <0.005 <0.2 180 <10 <10 1,200 <0.1 12N/36W-36L01 7/25/2011 890 41 65 5.7 110 43 170 408.9 0.39 <1 0.15 <0.1 <0.01 <0.005 <0.1 170 <5 <5 1,200 0.024 12N/36W-36L01 4/21/2011 890 42 61 4.2 100 30 170 415 0.60 <1 0.19 0.07 <0.01 <0.005 <0.1 170 <2.0 <2.0 1,200 NA 12N/36W-36L01 1/24/2011 890 41 55 5.1 98 36 180 400 0.50 <1.0 0.20 0.15 <0.10 <0.005 <0.1 180 <2.0 <2.0 1,200 <0.1 12N/36W-36L01 10/21/2010 910 38 76 3.6 130 47 169 400 0.39 <1.0 0.10 <0.1 NA <0.005 <0.3 169 <10 <10 1,213 <0.1 12N/36W-36L01 7/27/2010 707 36 64.2 3.70 127 47.4 182 420 0.40 < 0.50 0.158 < 0.10 < 0.10 < 0.00500 0.11 182 < 1.0 < 1.0 1,100 < 0.100 12N/36W-36L01 4/26/2010 860 42 70.3 4.13 129 48.9 191 400 0.45 0.77 0.223 < 0.1 0.15 0.057 0.14 191 < 1.0 < 1.0 1,100 4.53 12N/36W-36L01 10/21/2009 856 38 72.0 4.64 131 48.2 192 420 0.49 0.84 0.150 0.12 < 0.10 0.0994 0.13 192 < 1.0 < 1.0 1,100 1.68 12N/36W-36L01 8/20/2009 890 39 78.0 4.21 138 48.1 184 390 0.49 0.56 NA < 0.10 < 0.10 0.185 0.14 184 < 1.0 < 1.0 1,200 2.03 12N/36W-36L01 5/11/2009 832 63 83.8 4.88 111 45.4 204 330 NA NA NA 0.12 NA 0.551 0.22 204 < 1.0 < 1.0 1,200 4.02 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 12N/36W-36L02 10/6/2021 760 93 110 5.7 96 41 260 230 0.2 1.5 0.3 0.079 0.13 0.14 0.05 0.2 8.2 8.2 0.031 12N/36W-36L02 7/15/2021 820 98 100 5.4 90 39 260 240 0.024 2.1 0.31 0.1 0.13 0.14 0.59 260 8.2 8.2 1,190 0.11 12N/36W-36L02 4/8/2021 800 99 91 4.8 77 35 270 240 0.024 1.8 0.28 0.099 0.13 0.12 0.57 270 8.2 8.2 1,190 0.036 12N/36W-36L02 1/7/2021 860 98 110 6.1 100 46 260 240 0.024 1.8 0.34 0.096 0.18 0.16 0.43 260 8.2 8.2 1,180 0.26 12N/36W-36L02 10/11/2020 870 98 98 5.4 95.0 40 250 250 0 1.70 0.29 0.084 0.130 0.13 0.62 250 0 0 1,190 0.0 12N/36W-36L02 7/8/2020 930 100 110 5.8 97.0 42 260 240 0 1.80 0.31 0.093 0.130 0.14 0.65 260 8 8 1,210 0.1 12N/36W-36L02 4/22/2020 770 100 110 6.0 97.0 40 270 230 0 2.10 0.33 0.069 0.120 0.15 0.67 270 0 0 1,190 0.6 12N/36W-36L02 1/15/2020 860 100 110 6.2 100.0 43 260 240 0 1.90 0.35 0.085 0.160 0.16 0.35 260 0 0 1,160 0.2 12N/36W-36L02 10/15/2019 780 99 120 6.3 100.0 41 270 240 0 2.00 0.35 0.078 0.130 0.17 0.66 270 0 0 1,210 0.5 12N/36W-36L02 7/10/2019 660 99 100 5.9 94.0 44 260 240 0 1.90 0.33 0.096 0.150 0.15 0.60 260 0 0 1,200 0.1 12N/36W-36L02 4/10/2019 820 100 100 5.7 96 43 270 240 ND 2.0 0.32 0.094 0.13 0.15 0.5 270 ND ND 1,220 0.17 12N/36W-36L02 1/9/2019 820 100 110 6.1 99 42 270 240 ND 2.2 0.33 0.099 0.14 0.15 0.5 270 ND ND 1220 0.42 12N/36W-36L02 10/10/2018 840 99 110 7.2 100 46 260 240 ND 2 0.33 0.06 0.13 0.19 0.40 260 ND ND 1,200 5.2 12N/36W-36L02 7/10/2018 800 100 99 5.6 89 41 260 240 ND 2.0 0.33 0.14 0.14 0.14 0.62 260 ND ND 1,260 0.9 12N/36W-36L02 4/11/2018 850 100 110 6.0 96 42 260 230 0.044 1.8 0.32 0.097 0.16 0.17 0.66 260 ND ND 1,210 2.1 12N/36W-36L02 1/11/2018 800 100 110 6.3 97 44 260 230 ND 2.0 0.38 0.12 0.17 0.17 0.65 260 ND ND 1,190 0.51 12N/36W-36L02 10/11/2017 830 100 100 5.9 97 44 280 230 ND 1.8 0.36 0.087 0.13 0.16 0.66 280 ND ND 1220 0.41 12N/36W-36L02 7/12/2017 940 97 100 6.1 98 45 250 230 ND 2.2 0.32 0.096 0.13 0.16 0.59 250 ND ND 1,200 0.75 12N/36W-36L02 4/12/2017 780 97 120 6.7 98 43 250 240 ND 2.2 0.35 0.082 0.14 0.16 0.51 250 ND ND 1,190 0.77 12N/36W-36L02 1/12/2017 810 94 120 6.6 110 48 270 240 ND 2 0.36 0.08 0.19 0.19 0.53 270 ND ND 1,200 1.1 12N/36W-36L02 10/12/2016 820 99 120 6.6 110 50 270 240 ND 2 0.35 0.084 0.14 0.17 0.58 270 ND ND 1230 0.1 12N/36W-36L02 7/19/2016 820 97 110 6.2 95 45 270 240 <0.022 2 0.33 0.081 0.1 0.15 0.65 270 <8.2 <0.82 1,220 0.14 12N/36W-36L02 4/12/2016 800 96 100 6 94 44 270 230 <0.022 1.8 0.32 0.12 0.12 0.14 0.81 270 <8.2 <0.82 1,240 0.37 12N/36W-36L02 1/14/2016 860 96 110 6.4 99 47 260 230 <0.018 1.6 0.34 0.10 0.078 0.17 0.65 260 <8.2 <8.2 1,240 1.9 12N/36W-36L02 10/15/2015 800 89 96 6.0 91 0.15 266 230 <0.05 2.2 0.32 0.22 0.098 0.15 0.37 266 <10 <10 1,220 0.32 12N/36W-36L02 7/16/2015 840 97 120 5.9 110 46 260 240 <0.05 2.44 0.34 0.11 0.11 0.15 0.59 260 <10 <10 1,230 0.16 12N/36W-36L02 4/14/2015 800 98 88 5.3 83 39 270 240 <0.05 2.9 0.33 0.104 0.089 0.13 0.380 270 <10 <10 1,180 0.40 12N/36W-36L02 1/13/2015 820 100 91 5.5 86 39 250 250 <0.05 2.2 0.31 0.105 0.09 0.13 0.322 250 <10 <10 1,190 0.077 12N/36W-36L02 10/15/2014 800 88 96 6.4 91 40 260 210 <0.05 2.1 0.32 <0.1 0.092 0.14 0.358 260 <10 <10 1,230 0.12 12N/36W-36L02 7/30/2014 800 98 99 5.8 88 39 280 210 <0.05 2.4 0.28 0.11 0.09 0.14 0.19 280 <10 <10 1,240 0.27 12N/36W-36L02 4/16/2014 820 95 89 6.3 73 31 280 210 <0.05 2.3 0.31 <0.1 0.09 0.13 0.35 280 <10 <10 1,240 0.22 12N/36W-36L02 1/16/2014 800 100 87 5 76 33 270 230 <0.05 2.3 0.31 0.23 0.09 0.14 0.44 270 <10 <10 1,230 0.41 12N/36W-36L02 10/16/2013 810 90 110 6.4 91 40 260 240 <0.05 2.2 0.32 <0.1 0.1 0.15 0.32 260 <10 <10 1,220 0.54 12N/36W-36L02 7/10/2013 790 105 94 5.8 88 38 260 240 <0.05 2.5 0.34 <0.1 0.08 0.13 0.11 260 <10 <10 1,240 0.31 12N/36W-36L02 4/11/2013 830 100 99 6.2 83 37 260 220 <0.05 2.2 0.35 <0.1 0.098 0.14 0.45 260 <10 <10 1,240 0.60 12N/36W-36L02 1/15/2013 770 110 110 6.7 84 38 265 220 <0.05 2.8 0.36 <0.1 0.02 0.14 0.20 265 <10 <10 1,240 0.61 12N/36W-36L02 10/31/2012 800 100 120 7.3 90 39 265 200 <0.1 2.4 0.4 0.34 0.12 0.14 0.34 265 <10 <10 1,250 0.30 12N/36W-36L02 7/24/2012 800 134 125 7.4 83 35 277 200 <0.05 2.3 0.42 0.13 0.12 0.14 0.31 277 <10 <10 1,250 0.52 12N/36W-36L02 4/18/2012 770 130 95 6.2 75 33 270 210 0.42 4 0.35 0.36 0.12 0.13 <0.2 270 <10 <10 1,250 0.77 12N/36W-36L02 1/11/2012 900 122 110 7.2 95 37 290 170 <0.1 4.8 0.48 0.28 <0.02 0.17 0.45 290 <10 <10 1,250 1.80 12N/36W-36L02 11/21/2011 780 130 95 6.1 77 33 270 160 <0.1 <1 0.4 <0.2 <0.01 0.13 0.45 270 <10 <10 1,240 0.40 12N/36W-36L02 7/25/2011 790 129 110 9.1 74 33 280 177 <0.05 2.3 0.36 0.12 0.14 0.13 0.51 280 <5 <5 1,280 2.30 12N/36W-36L02 4/21/2011 770 120 90 5.3 86 26 280 206 <0.05 2.3 0.24 0.26 0.14 0.004 0.57 280 <2.0 <2.0 1,270 NA 12N/36W-36L02 1/24/2011 800 120 95 7.6 75 30 300 190 <0.05 2.3 0.39 0.16 1.31 0.13 0.53 300 <2.0 <2.0 1,270 1.40 12N/36W-36L02 10/21/2010 770 120 130 7.6 89 44 275 160 <0.1 3.4 0.48 <0.1 NA 0.15 0.54 275 <10 <10 1,293 0.12 12N/36W-36L02 7/27/2010 737 110 121 7.81 91.1 38.9 268 190 < 0.10 < 0.50 0.427 0.10 0.77 0.180 0.80 268 < 1.0 < 1.0 1,200 0.845 12N/36W-36L02 4/26/2010 720 100 116 6.88 85.4 32.4 215 210 1.5 0.77 0.382 0.2 0.28 0.167 0.7 215 < 1.0 < 1.0 1,100 3.870 12N/36W-36L02 10/21/2009 638 99 113 6.15 81.6 23.0 172 200 < 0.10 3.2 0.268 0.33 57 0.128 0.61 172 < 1.0 < 1.0 940 0.255 12N/36W-36L02 8/20/2009 785 100 131 6.66 89.8 36.6 290 190 < 0.10 3.8 NA 0.15 0.27 0.307 0.75 290 < 1.0 < 1.0 1,200 0.830 12N/36W-36L02 5/11/2009 775 120 132 7.24 84 39.7 294 180 NA NA NA 0.18 NA 0.426 0.78 294 < 1.0 < 1.0 1,300 0.958 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Appendix A: NCMA Sentry Wells Water Quality Data
Well Date TDS Chloride Sodium Potassium Calcium Magnesium Bicarbonate as CaCO3 Sulfate Nitrate(as N)
Total
Kjeldahl
Nitrogen
Boron Fluoride Iodide Manganese Bromide Total Alkalinity as CaCO3
Carbonate as
CaCO3
Hydroxide
as CaCO3
Specific
Conductivity
Iron
mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l umhos/cm mg/l 12N/35W-32C03 10/7/2021 320 76 68 2.6 15 6.5 56 32 8.4 0.2 0.078 0.053 0.1 0.01 0.18 56 4.1 4.1 0.054 12N/35W-32C03 7/15/2021 360 77 66 2.6 15 6.7 56 32 8.2 0.091 0.066 0.047 0.014 0.004 0.2 56 4.1 4.1 503 0.11 12N/35W-32C03 4/6/2021 330 77 69 2.6 15 7.2 54 31 8.2 0.098 0.088 0.045 0.005 0.004 0.21 54 4.1 4.1 0.03 12N/35W-32C03 1/6/2021 310 71 65 2.7 14 6.5 56 29 7.9 0.27 0.11 0.041 0.005 0.004 0.17 56 4.1 4.1 471 0.03 12N/35W-32C03 10/7/2020 350 64 63 2.5 13.0 6 54 26 8 0.00 0.11 0.066 0.000 0.00 0.18 54 0 0 430 0.0 12N/35W-32C03 7/7/2020 290 62 66 2.7 13.0 6 49 25 9 0.20 0.11 0.049 0.100 0.01 0.18 49 4 4 422 0.1 12N/35W-32C03 4/21/2020 300 62 63 2.6 13.0 6 54 27 8 0.95 0.10 0.051 0.000 0.00 0.16 54 0 0 446 0.0 12N/35W-32C03 1/14/2020 290 63 62 2.6 13.0 6 50 27 9 0.00 0.09 0.052 0.000 0.00 0.16 50 0 0 410 0.1 12N/35W-32C03 10/14/2019 190 60 63 2.6 12.0 6 48 25 9 0.00 0.10 0.043 0.000 0.00 0.18 48 0 0 422 0.1 12N/35W-32C03 7/9/2019 320 60 64 2.5 13.0 6 51 25 8 0.00 0.10 0.053 0.000 0.00 0.15 51 0 0 426 0.0 12N/35W-32C03 4/9/2019 320 64 60 2.7 14 6.2 54 28 8.4 0.09 0.10 0.06 ND 0.01 0.16 54 ND ND 446 0.350 12N/35W-32C03 1/9/2019 290 64 70 2.8 14 6.2 53 29 8.6 0.19 0.12 0.051 ND ND 0.18 53 ND ND 440 0.038 12N/35W-32C03 10/9/2018 280 62 64 2.8 14 6.2 50 28 8.4 0.07 0.093 0.031 ND ND 0.13 50 ND ND 446 0.087 12N/35W-32C03 7/10/2018 300 64 60 2.5 13 5.8 54 27 8.5 ND 0.089 0.11 ND ND 0.18 54 ND ND 458 0.047 12N/35W-32C03 4/10/2018 320 66 62 2.6 13 6.1 51 30 8.4 ND 0.087 0.047 ND ND 0.23 51 ND ND 450 0.26 12N/35W-32C03 1/10/2018 320 62 67 2.7 14 6.4 50 27 8.2 0.11 0.09 0.073 ND ND 0.20 50 ND ND 438 0.21 12N/35W-32C03 10/11/2017 320 64 63 2.8 14 6.5 53 28 8.4 0.11 0.11 0.04 ND 0.01 0.17 53 ND ND 445 0.6 12N/35W-32C03 7/11/2017 370 63 71 2.9 16 7 55 28 7.9 ND 0.094 0.035 ND 0.0062 0.21 55 ND ND 450 0.3 12N/35W-32C03 4/11/2017 300 65 66 2.8 14 6.6 52 28 8 ND 0.082 0.038 ND ND 0.19 52 ND ND 442 0.077 12N/35W-32C03 1/13/2017 300 67 72 3 16 7.1 53 29 8.2 ND 0.093 0.033 ND ND 0.21 53 ND ND 449 0.072 12N/35W-32C03 10/13/2016 310 64 68 2.9 14 6.5 53 25 8.1 0.12 0.088 0.08 ND ND 0.18 53 ND ND 433 ND 12N/35W-32C03 7/20/2016 300 66 65 2.8 13 6.4 57 26 7.9064 <0.08 0.087 0.03 <0.010 <0.0040 0.16 57 <4.1 <4.1 450 0.039 12N/35W-32C03 4/13/2016 290 65 66 2.8 14 6.5 51 26 8.1323 0.086 0.083 0.039 <0.010 <0.0040 0.22 51 <4.1 <4.1 438 0.08 12N/35W-32C03 1/14/2016 290 69 68 2.9 14 6.3 50 27 8.6 <0.08 0.094 0.083 <0.010 <0.0040 0.16 50 <4.1 <4.1 430 0.079 12N/35W-32C03 10/14/2015 280 61 57 2.6 12 5.8 51 28 8.4 <1 0.090 <0.10 <0.01 <0.005 <0.10 51 <10 <10 430 0.33 12N/35W-32C03 7/14/2015 280 64 67 2.7 14 6.2 50 30 8.0 <1 0.10 <0.1 <0.01 <0.005 <0.1 50 <10 <10 440 0.22 12N/35W-32C03 4/15/2015 280 62 52 2.4 12 5.4 51 30 7.8 <1 0.081 <0.1 <0.01 <0.005 0.11 51 <10 <10 420 0.11 12N/35W-32C03 1/14/2015 290 63 56 2.3 13 5.8 51 30 8.2 <1 0.077 <0.1 <0.01 <0.005 0.1 51 <10 <10 420 0.38 12N/35W-32C03 10/16/2014 270 55 54 2.7 13 5.7 51 26 7.3 0.3 0.069 <0.1 <0.01 0.005 <0.1 51 <10 <10 430 0.35 12N/35W-32C03 7/30/2014 280 60 58 1.9 14 6.5 60 29 7.3 <1 <0.1 <0.1 <0.01 <0.005 <0.1 60 17 <10 450 0.16 12N/35W-32C03 4/15/2014 270 57 55 2.2 12 5 54 29 7.1 <1 0.096 <0.1 <0.01 <0.005 0.11 54 <10 <10 430 0.21 12N/35W-32C03 1/16/2014 300 62 57 2.8 14 6.3 54 35 8.1 8.2 <0.1 <0.1 <0.01 0.008 0.12 54 <10 <10 450 0.47 12N/35W-32C03 10/16/2013 310 58 62 2.9 15 6.4 54 38 7.5 <1 0.06 <0.1 <0.01 0.009 0.1 54 <10 <10 450 0.21 12N/35W-32C03 7/11/2013 290 60 45 2.4 14 5.9 61 30 7.4 <1 0.071 <0.1 <0.01 0.006 <0.1 61 <10 <10 440 0.17 12N/35W-32C03 4/12/2013 330 58 55 2.9 16 6.6 60 35 7.5 <1 0.091 <0.1 <0.01 0.019 0.1 60 <10 <10 460 0.49 12N/35W-32C03 1/15/2013 290 62 57 2.8 15 6.3 55 38 8.3 <1 0.089 <0.1 <0.01 0.01 <0.1 55 <10 <10 470 0.23 12N/35W-32C03 10/30/2012 330 57 60 3.3 19 7.5 60 36 7.8 <1 0.09 <0.1 <0.01 0.033 <0.1 60 <10 <10 470 1.9 12N/35W-32C03 7/25/2012 330 67 61 3.3 17 6.4 59 35 8.2 <1 <0.1 <0.1 <0.01 0.068 <0.1 59 <10 <10 460 0.49 12N/35W-32C03 4/19/2012 370 74 52 2.9 30 12 120 58 5 <1 0.17 0.2 <0.01 0.056 <0.2 120 <10 <10 580 1.3 \\GSIData\Projects\Portland\672-Northern Cities Management Area\008-2021 Annual Report\03 Annual Report\0 Admin Draft\Appendicies\Tables\03012022_NCMA_WQ_master.xlsx 3/2/2022

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Arroyo Grande City CouncilAugust 9, 2022

Arroyo Grande City Council
August 9, 2022