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All Water Quality Parameters Sample Results

Each grouping of water quality parameters will be separated out into tables to provide a data summary of each sampling event. Tables will be grouped and show aggregated data for each sampling event completed. Select each group below to see aggregated data tables.

  1. Metals
  2. Disinfectants / disinfection byproducts, and bacteria
  3. General water chemistry

Section 1: Metal Sampling Results

Certain conditions can cause metals from your home's plumbing to release into your drinking water. Some metals may also come from the source water. Too much metal in drinking water can be a health concern. Metals can be found dissolved in water and in small pieces called particulates. MDHHS tested water samples for the total amount of each metal, dissolved and particulates. MDHHS also tested water samples for dissolved lead, copper, iron, and manganese. These results were used to calculate the amount of metal particulate in the water.

  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021- 8/30/2021

    61 ( 49 / 57 )

    0.05

    ND

    0.16

    0.053

    ND

    0.17

    0.05-0.20 (J)

    0.3 (D)

    09/08/21-
    09/10/21
    63 ( 58 / 62 ) 0.038 ND 0.1 0.0435 ND 0.77 0.05-0.20 (J) 0.3 (D)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.061 ND 0.16 0.067 ND 0.46 0.05-0.20 (J) 0.3 (D)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.043 ND 0.18 0.0455 ND 0.14 0.05-0.20 (J) 0.3 (D)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.048 ND 0.26 0.0505 ND 4.8 0.05-0.20 (J) 0.3 (D)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.0605 ND 3.7 0.067 ND 1.4 0.05-0.20 (J) 0.3 (D)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.056 ND 13 0.06 ND 2 0.05-0.20 (J) 0.3 (D)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) 0.08 ND 0.25 0.09 ND 0.31 0.05-0.20 (J) 0.3 (D)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) 0.068 ND 1.3 0.088 ND 4.4 0.05-0.20 (J) 0.3 (D)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) 0.0835 ND 0.86 0.09 ND 0.17 0.05-0.20 (J) 0.3 (D)
    02/22/22- 02/24/22 55 ( 55 / 54 ) 0.078 ND 0.45 0.13 ND 0.5 0.05-0.20 (J) 0.3 (D)
    03/22/22- 03/24/22 52 ( 52 / 52 ) 0.071 ND 0.4 0.098 ND 0.31 0.05-0.20 (J) 0.3 (D)
    04/26/22- 04/28/22 54 ( 54 / 54 ) ND ND 1.1 ND ND 0.17 0.05-0.20 (J) 0.3 (D)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.006 (F)

    0.0028 (B: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    02/22/22- 02/24/22 55 ( 55 / 54 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    03/22/22- 03/24/22 52 ( 52 / 52 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
    04/26/22- 04/28/22 54 ( 54 / 54 ) ND ND ND ND ND ND 0.006 (F) 0.0028 (B: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021- 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.01 (F)

    0 (G)

    09/08/21- 09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.0011 ND ND ND 0.01 (F) 0 (G)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.01 (F) 0 (G)
  • 0 (G)

    Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    0.014

    ND

    0.015

    0.014

    ND 

    0.015

    2 (F)

    0.7 (E: 1/10- day for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.014 ND 0.015 0.014 ND 0.021 2 (F) 0.7 (E: 1/10- day for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.014 ND 0.016 0.014 ND 0.017 2 (F) 0.7 (E: 1/10- day for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.013 ND 0.015 0.013 ND 0.014 2 (F) 0.7 (E: 1/10- day for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.013 ND 0.017 0.013 ND 0.049 2 (F) 0.7 (E: 1/10- day for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.013 ND 0.042 0.013 ND 0.023 2 (F) 0.7 (E: 1/10- day for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.012 ND 0.12 0.012 ND 0.028 2 (F) 0.7 (E: 1/10- day for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) 0.012 ND 0.016 0.012 ND 0.014 2 (F) 0.7 (E: 1/10- day for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) 0.012 ND 0.024 0.012 ND 0.058 2 (F) 0.7 (E: 1/10- day for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) 0.012 ND 0.02 0.012 ND 0.014 2 (F) 0.7 (E: 1/10- day for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) 0.012 ND 0.016 0.013 ND 0.017 2 (F) 0.7 (E: 1/10- day for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) 0.013 ND 0.018 0.013 ND 0.016 2 (F) 0.7 (E: 1/10- day for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) 0.012 ND 0.015 0.012 ND 0.016 2 (F) 0.7 (E: 1/10- day for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.004 (F)

    0.004 (G)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.004 (F) 0.004 (G)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    0.015

    0.014

    0.023

    0.015

    0.014

    0.026

    Value not established

    1.4 (C: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.014 0.013 0.023 0.014 0.013 0.016 Value not established 1.4 (C: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.014 0.012 0.021 0.014 0.012 0.021 Value not established 1.4 (C: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.015 0.014 0.026 0.015 0.014 0.027 Value not established 1.4 (C: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.015 0.014 0.11 0.0145 0.014 0.018 Value not established 1.4 (C: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.014 0.013 0.015 0.014 0.013 0.015 Value not established 1.4 (C: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.014 0.013 0.016 0.014 0.012 0.016 Value not established 1.4 (C: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND Value not established 1.4 (C: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND Value not established 1.4 (C: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 1.4 (C: chronic for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND Value not established 1.4 (C: chronic for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 1.4 (C: chronic for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND 0.05 ND ND ND Value not established 1.4 (C: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    0.0018

    ND

    ND

    0.00036

    0.005 (F)

    0.0007 (C: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND 0.0014 ND ND 0.0024 0.005 (F) 0.0007 (C: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.0033 ND ND 0.00039 0.005 (F) 0.0007 (C: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND 0.0014 ND ND 0.00037 0.005 (F) 0.0007 (C: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND 0.0026 ND ND 0.00025 0.005 (F) 0.0007 (C: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.0025 ND ND 0.00026 0.005 (F) 0.0007 (C: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND 0.0025 ND ND 0.00024 0.005 (F) 0.0007 (C: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND 0.003 ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.0047 ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.0036 ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND 0.0036 ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.005 (F) 0.0007 (C: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    0.0013

    ND

    0.0016

    0.0013

    ND

    0.0016

    0.1 (F)

    0.0063 (C: chronic for children, Cr (VI))1

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.0012 ND 0.0019 0.0012 ND 0.002 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.0014 ND 0.0022 0.0015 ND 0.0021 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.0014 ND 0.0021 0.0014 ND 0.0019 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.001 ND 0.0017 0.0011 ND 0.0017 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.0014 ND ND 0.0015 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.001 ND 0.0014 ND ND 0.0016 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.1 (F) 0.0063 (C: chronic for children, Cr (VI))1
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    0.0091

    0.0013

    0.58

    0.0046

    ND

    0.07

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.0135 0.0014 0.18 0.0042 ND 0.055

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.011 ND 0.14 0.0042 ND 0.022

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.00885 ND 0.22 0.0043 ND 0.11

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.0105 ND 0.11 0.0041 ND 0.21

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.00945 ND 0.2 0.0024 ND 0.024

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.0093 ND 0.082 0.0035 ND 0.029

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND 0.12 ND ND 0.026

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND 0.24 ND ND ND

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.11 ND ND 0.028

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.15 ND ND 0.065

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND 0.31 ND ND 0.042

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND 0.16 ND ND 0.025

    1.3 (A)
    1.0 (J)

    0.07 (C: acute/ intermediate for children) 1.3 (G)2
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.30 (J)

    2 (D)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND 0.2 0.30 (J) 2 (D)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND 0.19 0.30 (J) 2 (D)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.30 (J) 2 (D)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND 0.39 0.30 (J) 2 (D)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.54 ND ND 0.2 0.30 (J) 2 (D)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND 1.1 ND ND 0.12 0.30 (J) 2 (D)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND 0.16 0.30 (J) 2 (D)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND 0.37 0.30 (J) 2 (D)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.14 ND ND ND 0.30 (J) 2 (D)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.30 (J) 2 (D)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.30 (J) 2 (D)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND 0.15 ND ND ND 0.30 (J) 2 (D)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    0.0095

    ND

    ND

    0.003

    0.015 (A)

    0 (G)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND 0.0049 ND ND ND 0.015 (A) 0 (G)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.0017 ND ND ND 0.015 (A) 0 (G)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND 0.0011 ND ND ND 0.015 (A) 0 (G)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND 0.0015 ND ND

    0.0014

    0.015 (A) 0 (G)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.0019 ND ND ND 0.015 (A) 0 (G)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND 0.0014 ND ND ND 0.015 (A) 0 (G)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND 0.0041 ND ND ND 0.015 (A) 0 (G)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND 0.058 ND ND ND 0.015 (A) 0 (G)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.0094 ND ND ND 0.015 (A) 0 (G)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.0051 ND ND ND 0.015 (A) 0 (G)
    03/22/2022- 03/24/2022 52 ( 53 / 52 ) ND ND 0.018 ND ND 0.002 0.015 (A) 0 (G)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND 0.0032 ND ND ND 0.015 (A) 0 (G)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    0.0063

    ND

    ND

    0.0028

    0.05 (J)

    0.3 (E: lifetime)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND 0.0016 ND ND 0.026 0.05 (J) 0.3 (E: lifetime)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.0021 ND ND 0.0069 0.05 (J) 0.3 (E: lifetime)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND 0.0033 ND ND 0.0027 0.05 (J) 0.3 (E: lifetime)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND 0.0062 ND ND 0.12 0.05 (J) 0.3 (E: lifetime)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.00115 ND 0.12 0.00145 ND 0.049 0.05 (J) 0.3 (E: lifetime)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.0016 nd 0.44 0.0017 nd 0.066 0.05 (J) 0.3 (E: lifetime)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.05 (J) 0.3 (E: lifetime)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND 0.04 ND ND 0.16 0.05 (J) 0.3 (E: lifetime)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.052 ND ND ND 0.05 (J) 0.3 (E: lifetime)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.027 ND ND 0.036 0.05 (J) 0.3 (E: lifetime)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND 0.03 ND ND 0.028 0.05 (J) 0.3 (E: lifetime)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND 0.033 0.05 (J) 0.3 (E: lifetime)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    Value not established

    0.035 (B: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND 0.0053 Value not established 0.035 (B: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND 0.0028 Value not established 0.035 (B: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND Value not established 0.035 (B: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    0.0018

    ND

    0.014

    0.0018

    ND

    0.0029

    Value not established

    0.1 (E: lifetime)

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.0018 ND 0.008 0.0018 ND 0.0041 Value not established 0.1 (E: lifetime)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 0.0014 ND 0.0054 0.0014 ND 0.0018 Value not established 0.1 (E: lifetime)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 0.0023 ND 0.0065 0.0022 ND 0.0036 Value not established 0.1 (E: lifetime)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.0017 ND 0.093 0.0017 ND 0.027 Value not established 0.1 (E: lifetime)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 0.0014 ND 0.0028 0.0014 ND 0.0022 Value not established 0.1 (E: lifetime)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 0.0014 ND 0.0028 0.0013 ND 0.0026 Value not established 0.1 (E: lifetime)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND 0.027 ND ND ND Value not established 0.1 (E: lifetime)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND 0.026 ND ND ND Value not established 0.1 (E: lifetime)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.1 (E: lifetime)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.011 ND ND ND Value not established 0.1 (E: lifetime)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.1 (E: lifetime)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND Value not established 0.1 (E: lifetime)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    0.0012

    ND

    ND

    0.0013

    0.05 (F)

    0.035 (B, C: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND 0.0014 ND ND 0.001 0.05 (F) 0.035 (B, C: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.0016 ND ND 0.0013 0.05 (F) 0.035 (B, C: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND 0.0013 ND ND 0.0012 0.05 (F) 0.035 (B, C: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND 0.0024 ND ND 0.0012 0.05 (F) 0.035 (B, C: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.0011 ND ND 0.0014 0.05 (F) 0.035 (B, C: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND 0.0011 ND ND 0.0011 0.05 (F) 0.035 (B, C: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.05 (F) 0.035 (B, C: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.1 (J)

    0.035 (B, C: chronic for children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.1 (J) 0.035 (B, C: chronic for children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    0.002 (F)

    0.0002 (I)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND 0.002 (F) 0.0002 (I)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    Value not established

    2.1 (C: intermediate children)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND 0.0015 Value not established 2.1 (C: intermediate children)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND Value not established 2.1 (C: intermediate children)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    ND

    ND

    ND

    ND

    Value not established

    0.0045 (D)

    09/08/21-09/10/21 63 ( 58 / 62 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND ND ND ND ND Value not established 0.0045 (D)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND ND ND ND ND Value not established 0.0045 (D)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US EPA Drinking Water Value (mg/L)

    Health-based Value (mg/L)

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    ND

    ND

    0.27

    ND

    ND

    0.073

    5 (J)

    2 (E: lifetime)

    09/08/21-09/10/21 63 ( 58 / 62 ) 0.00455 ND 0.24 ND ND 0.084 5 (J) 2 (E: lifetime)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) ND ND 0.46 ND ND 0.062 5 (J) 2 (E: lifetime)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) ND ND 0.24 ND ND 0.066 5 (J) 2 (E: lifetime)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) ND ND 0.42 ND ND 0.14 5 (J) 2 (E: lifetime)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) ND ND 0.44 ND ND 0.061 5 (J) 2 (E: lifetime)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) ND ND 0.44 ND ND 0.067 5 (J) 2 (E: lifetime)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) ND ND 0.61 ND ND 0.053 5 (J) 2 (E: lifetime)
    01/11/2022- 01/13/2022 53 ( 53 / 53 ) ND ND 0.41 ND ND 0.051 5 (J) 2 (E: lifetime)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) ND ND 0.52 ND ND 0.051 5 (J) 2 (E: lifetime)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) ND ND 0.61 ND ND 0.05 5 (J) 2 (E: lifetime)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) ND ND 0.65 ND ND 0.24 5 (J) 2 (E: lifetime)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) ND ND 0.59 ND ND 0.048 5 (J) 2 (E: lifetime)

Section 2: Disinfectant, Disinfection Byproducts, and Bacteria Sampling Results

Community public water supplies add chemicals like chlorine3 to help improve the quality of water delivered to homes. These chemicals may also generate disinfection byproducts (DBPs)4 during the disinfection process. Chlorine is an effective way to remove bacteria from the water. But swallowing water with too much chlorine or DBPs or inhale too much while showering over time can be a health concern. The water may have also be tested for coliform bacteria if the chlorine level was low. MDHHS and the city of Flint will follow up with residents if any bacteria is found in the result.

  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (mg/L)

    Range in flushed samples (mg/L)

    US Environmental Protection Agency (US EPA) Drinking Water Value

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 52 / 53 )

    1.035

    0.03

    1.81

    1.25

    0.06

    1.91

    4 (H)

    09/08/21-09/10/21 63 ( 58 / 61 ) 0.94 ND 1.61 1.21 ND 2.92 4 (H)
    09/21/2021- 09/23/2021 58 ( 50 / 56 ) 0.67 ND 1.84 1.085 ND 1.85 4 (H)
    10/05/2021- 10/07/2021 58 ( 58 / 57 ) 0.95 ND 1.9 1.32 ND 1.95 4 (H)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 0.905 0.06 2 1.275 0.01 3.99 4 (H)
    11/02/2021-11/04/2021 60 ( 60 / 60 ) 0.91 0 1.91 1.22 0.03 2.06 4 (H)
    11/16/2021-11/18/2021 59 ( 59 / 59 ) 1.03 0.03 1.88 1.39 0 2.13 4 (H)
    12/14/2021-12/16/2021 57 ( 57 / 57 ) 1.07 0 2.04 1.37 0.04 2.02 4 (H)
    01/11/2022-01/13/2022 52 ( 52 / 52 ) 1.14 0.01 1.94 1.445 0 1.89 4 (H)
    01/25/2022- 01/27/2022 50 ( 49 / 50 ) 1.06 0.02 3.2 1.49 0.02 1.97 4 (H)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) 1.31 0.02 1.69 1.365 0 1.75 4 (H)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) 1.08 0 1.75 1.355 0 1.87 4 (H)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) 1.09 0.02 1.85 1.515 0.05 1.92 4 (H)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (µg/L)

    Range in flushed samples (µg/L)

    US Environmental Protection Agency (US EPA) Drinking Water Value

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    26

    ND

    41

    25

    3.4

    36

    60 (F)

    09/08/21-09/10/21 63 ( 58 / 62 ) 26 ND 47 26 1 35 60 (F)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 24 ND 36 23 2.8 33 60 (F)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 24.5 1.2 44 24 ND 33 60 (F)
    10/18/2021- 10/25/2021 60 ( 59 / 60 ) 25 1 44 24 1.1 32 60 (F)
    11/02/2021- 11/04/2021 60 ( 60 / 60 ) 24 ND 54 24 4.1 33 60 (F)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 23 ND 45 23 ND 32 60 (F)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) 17 ND 43.1 16.6 ND 27.1 60 (F)
    01/11/2022- 01/13/2022 53 ( 54 / 53 ) 15.7 ND 31.1 14.5 7.28 32 60 (F)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) 18.3 13.4 37.8 16.9 9.85 33.8 60 (F)
    02/22/2022- 02/24/2022 55 ( 54 / 54 ) 19 5.29 57.4 18 ND 31.6 60 (F)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) 21.7 ND 51 20 nd 45.8 60 (F)
    04/26/2022- 04/28/2022 54 ( 53 / 54 ) 14.8 ND 45.3 14.1 ND 30.5 60 (F)
  • Samples Collected Range

    Number of locations sampled (number of initial samples/numbers of flushed samples)

    Range in initial samples (µg/L)

    Range in flushed samples (µg/L)

    US Environmental Protection Agency (US EPA) Drinking Water Value

    Median

    Lowest

    Highest

    Median

    Lowest

    Highest

    8/26/2021 - 8/30/2021

    61 ( 49 / 57 )

    36

    27

    100

    34

    28

    49

    80 (F)

    09/08/21-09/10/21 63 ( 58 / 61 ) 36 24 71 33 23 54 80 (F)
    09/21/2021- 09/23/2021  59 ( 59 / 59 ) 34 24 46 32 23 45 80 (F)
    10/05/2021- 10/07/2021 58 ( 58 / 58 ) 31 21 73 29 22 60 80 (F)
    10/18/2021- 10/25/2021 60 ( 60 / 60 ) 31 21 46 31 20 40 80 (F)
    11/02/2021- 11/04/2021 60 ( 59 / 61 ) 34 27 47 33 ND 47 80 (F)
    11/16/2021- 11/18/2021 59 ( 59 / 59 ) 28 20 61 29 20 41 80 (F)
    12/14/2021- 12/16/2021 56 ( 57 / 57 ) 27 18 130 26 16 48 80 (F)
    01/11/2022- 01/13/2022 53 ( 54 / 53 ) 18.5 15 110 18 15 35 80 (F)
    01/25/2022- 01/27/2022 52 ( 52 / 52 ) 19 17 68 18.5 16 31 80 (F)
    02/22/2022- 02/24/2022 55 ( 55 / 54 ) 21 18 100 21 18 47 80 (F)
    03/22/2022- 03/24/2022 52 ( 52 / 52 ) 22 ND 70 21 ND 43 80 (F)
    04/26/2022- 04/28/2022 54 ( 54 / 54 ) 20 14 84 19 14 42 80 (F)

Section 3: General Chemistry Sampling Results

General chemistry is a group of water quality parameters that measure how corrosive the water is. Testing the water for these parameters will provide an understanding of how well the corrosion control works in households. Many of the parameters in this group are not chemicals and do not cause health problems directly by themselves. The City of Flint measures the water quality parameters in water samples collected from the blending site and other pipes that carries drinking water from the plant to homes.

Select from the options below to learn about the community's data summary results.