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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

MS0470106 , BCM Water Association

17 of the 57 analytes this system has been tested for have been detected at least once, across 266 samples on record.

The other 40 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 266 samples on record, detections range from July 16, 2002 to September 30, 2025. 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 BCM 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
Copper, Free 1022 Inorganic Chemical 115 of 115 results Sep 27, 2004 Sep 6, 2023
Lead 1030 Inorganic Chemical 62 of 115 results Sep 27, 2004 Sep 6, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Jul 16, 2002 Mar 11, 2025
Fluoride 1025 Inorganic Chemical 22 of 22 results Jul 16, 2002 Mar 11, 2025
Chromium 1020 Inorganic Chemical 12 of 22 results Jul 16, 2002 Feb 6, 2024
TTHM 2950 Organic Chemical 11 of 20 results Jul 12, 2004 Sep 30, 2025
Chloroform 2941 Organic Chemical 9 of 15 results Aug 28, 2007 Sep 30, 2025
Bromodichloromethane 2943 Organic Chemical 8 of 15 results Aug 28, 2007 Jun 2, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Sep 23, 2019 Mar 5, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 20 results Jun 14, 2010 Jun 25, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 17, 2012
Dibromochloromethane 2944 Organic Chemical 3 of 15 results Aug 14, 2013 Feb 10, 2025
Arsenic 1005 Inorganic Chemical 2 of 22 results Oct 25, 2021 Feb 6, 2024
Dichloroacetic Acid 2451 Organic Chemical 2 of 14 results Aug 14, 2013 Sep 24, 2020
Sulfate 1055 Inorganic Chemical 2 of 2 results Jul 16, 2002 Mar 8, 2004
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Sep 24, 2020 Sep 24, 2020
Selenium 1045 Inorganic Chemical 1 of 22 results Mar 28, 2005 Mar 28, 2005

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 41–50 of 266 samples, newest first — collected April 26, 2022 to March 1, 2023. The summary above covers all 266.

76 results from the 10 samples listed here: 6 detected, 70 not detected. Across the whole record it is 287 of 1,278. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for BCM Water Association, every result from 41 to 50 of 266 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
Mar 1, 2023 12:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230302-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2023 12:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 1, 2023 12:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 1, 2023 12:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 15, 2023 15:15
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
VO-230216-009
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 15, 2023 15:15, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Sep 26, 2022 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-220927-015
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 26, 2022 13:45, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0098 mg/l , sample collected Sep 26, 2022 13:45, 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 26, 2022 13:45, 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 26, 2022 13:45, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.737 mg/l , sample collected Sep 26, 2022 13:45, 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 26, 2022 13:45, 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 26, 2022 13:45, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Sep 26, 2022 13:45, 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 26, 2022 13:45, 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 26, 2022 13:45, 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 26, 2022 13:45, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Sep 7, 2022 15:15
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
NI-220908-025
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 15:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 15:15, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 15:15, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Sep 7, 2022 14:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-220908-024
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 14:50, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 14:50, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 7, 2022 14:50, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Jul 18, 2022 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
VO-220719-010
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 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 Jul 18, 2022 14:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2022 14:30, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Jun 14, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-220615-023
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 14, 2022 14:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jun 14, 2022 12:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-220615-023
Laboratory
MSDH Lab
1.05 ug/l , sample collected Jun 14, 2022 12:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
May 3, 2022 11:50
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
CN-220504-005
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 3, 2022 11:50, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2022 – Dec 31, 2022
Collected
Apr 26, 2022 15:38
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
IN-220427-145
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
0.0092 mg/l , sample collected Apr 26, 2022 15:38, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
0.0006 mg/l , sample collected Apr 26, 2022 15:38, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
0.622 mg/l , sample collected Apr 26, 2022 15:38, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 26, 2022 15:38, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2022 – Dec 31, 2022

Routine (10).