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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0450003 , Big Black Water Association

25 of the 62 analytes this system has been tested for have been detected at least once, across 470 samples on record.

The other 37 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 470 samples on record, detections range from October 6, 2003 to June 30, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Big Black Water Association, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 141 of 141 results Sep 13, 2004 Jun 30, 2026
TTHM 2950 Organic Chemical 140 of 140 results Sep 13, 2004 Jun 30, 2026
Bromodichloromethane 2943 Organic Chemical 102 of 102 results May 25, 2006 Jun 30, 2026
Chloroform 2941 Organic Chemical 101 of 101 results May 25, 2006 Jun 30, 2026
Dichloroacetic Acid 2451 Organic Chemical 96 of 96 results Oct 11, 2007 Jun 30, 2026
Trichloroacetic Acid 2452 Organic Chemical 94 of 96 results Oct 11, 2007 Jun 30, 2026
Copper, Free 1022 Inorganic Chemical 65 of 65 results Aug 6, 2008 Sep 15, 2023
Lead 1030 Inorganic Chemical 51 of 65 results Aug 6, 2008 Sep 15, 2023
Fluoride 1025 Inorganic Chemical 22 of 22 results Oct 6, 2003 Mar 10, 2025
Barium 1010 Inorganic Chemical 20 of 20 results Oct 6, 2003 Mar 10, 2025
Monochloroacetic Acid 2450 Organic Chemical 20 of 96 results Oct 28, 2008 Dec 8, 2020
Chromium 1020 Inorganic Chemical 15 of 20 results Oct 6, 2003 Apr 8, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 6, 2011 Jul 11, 2012
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 18, 2019 Feb 25, 2025
Monobromoacetic Acid 2453 Organic Chemical 3 of 96 results Apr 18, 2012 Sep 1, 2020
Dibromochloromethane 2944 Organic Chemical 3 of 102 results Apr 29, 2008 Mar 15, 2010
Calcium 1016 Inorganic Chemical 2 of 2 results Apr 14, 2021 Apr 14, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Apr 14, 2021 Apr 14, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Color 1905 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results Apr 14, 2021 Apr 14, 2021
Cadmium 1015 Inorganic Chemical 2 of 20 results Mar 28, 2005 Mar 28, 2005
Nickel 1036 Inorganic Chemical 2 of 20 results Mar 28, 2005 Mar 28, 2005
Bromoform 2942 Organic Chemical 1 of 102 results Apr 29, 2008 Apr 29, 2008
Dichloromethane 2964 Organic Chemical 1 of 16 results Aug 10, 2004 Aug 10, 2004

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 31–40 of 470 samples, newest first — collected September 15, 2023 to February 15, 2024. The summary above covers all 470.

15 results from the 10 samples listed here: 13 detected, 2 not detected. Across the whole record it is 907 of 2,082. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 7 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Big Black Water Association, every result from 31 to 40 of 470 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Feb 15, 2024 10:00
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-240216-004
Laboratory
MSDH Lab
42.1 ug/l , sample collected Feb 15, 2024 10:00, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Feb 15, 2024 09:35
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-240216-003
Laboratory
MSDH Lab
48.4 ug/l , sample collected Feb 15, 2024 09:35, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Mar 31, 2024
Collected
Oct 17, 2023 11:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-231017-029
Laboratory
MSDH Lab
54.3 ug/l , sample collected Oct 17, 2023 11:45, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2023 – Dec 31, 2023
Collected
Oct 17, 2023 11:22
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-231017-030
Laboratory
MSDH Lab
48.9 ug/l , sample collected Oct 17, 2023 11:22, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2023 – Dec 31, 2023
Collected
Oct 17, 2023 11:45
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-231017-029
Laboratory
MSDH Lab
46.7 ug/l , sample collected Oct 17, 2023 11:45, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2023 – Dec 31, 2023
Collected
Sep 15, 2023 15:45
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-230919-060
Laboratory
MSDH Lab
0.0108 mg/l , sample collected Sep 15, 2023 15:45, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.568 ug/l , sample collected Sep 15, 2023 15:45, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 15, 2023 15:20
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230919-059
Laboratory
MSDH Lab
0.0838 mg/l , sample collected Sep 15, 2023 15:20, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.704 ug/l , sample collected Sep 15, 2023 15:20, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 15, 2023 14:44
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-230919-058
Laboratory
MSDH Lab
0.00367 mg/l , sample collected Sep 15, 2023 14:44, sampling point LC0019 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 15, 2023 14:44, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 15, 2023 14:20
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230919-057
Laboratory
MSDH Lab
0.156 mg/l , sample collected Sep 15, 2023 14:20, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.614 ug/l , sample collected Sep 15, 2023 14:20, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 15, 2023 12:30
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230919-056
Laboratory
MSDH Lab
0.0967 mg/l , sample collected Sep 15, 2023 12:30, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 15, 2023 12:30, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).