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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 61–70 of 470 samples, newest first — collected June 29, 2022 to November 8, 2022. The summary above covers all 470.

50 results from the 10 samples listed here: 11 detected, 39 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 2 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 61 to 70 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
Nov 8, 2022 08:58
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-221109-029
Laboratory
MSDH Lab
32.4 ug/l , sample collected Nov 8, 2022 08:58, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2022 – Dec 31, 2022
Collected
Nov 8, 2022 08:35
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-221109-030
Laboratory
MSDH Lab
41.9 ug/l , sample collected Nov 8, 2022 08:35, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2022 – Dec 31, 2022
Collected
Nov 8, 2022 08:58
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-221109-029
Laboratory
MSDH Lab
36.1 ug/l , sample collected Nov 8, 2022 08:58, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2022 – Dec 31, 2022
Collected
Sep 27, 2022 14:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-220928-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0073 mg/l , sample collected Sep 27, 2022 14:15, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.327 mg/l , sample collected Sep 27, 2022 14:15, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 14:15, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Sep 27, 2022 11:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-220928-001
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0038 mg/l , sample collected Sep 27, 2022 11:40, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.329 mg/l , sample collected Sep 27, 2022 11:40, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2022 11:40, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jul 27, 2022 13:35
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-220728-009
Laboratory
MSDH Lab
55 ug/l , sample collected Jul 27, 2022 13:35, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2022 – Sep 30, 2022
Collected
Jul 27, 2022 13:55
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
TH-220728-008
Laboratory
MSDH Lab
51.6 ug/l , sample collected Jul 27, 2022 13:55, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2022 – Sep 30, 2022
Collected
Jul 27, 2022 13:35
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-220728-007
Laboratory
MSDH Lab
52.5 ug/l , sample collected Jul 27, 2022 13:35, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2022 – Sep 30, 2022
Collected
Jul 27, 2022 13:55
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
HA-220728-006
Laboratory
MSDH Lab
50.8 ug/l , sample collected Jul 27, 2022 13:55, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2022 – Sep 30, 2022
Collected
Jun 29, 2022 11:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
VO-220630-012
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2022 11:30, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022

Routine (10).