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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 141–150 of 266 samples, newest first — collected July 16, 2012 to August 5, 2014. The summary above covers all 266.

31 results from the 10 samples listed here: 11 detected, 20 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 141 to 150 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
Aug 5, 2014 16:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140807-129PB
Laboratory
MSDH Lab
0.0072 mg/l , sample collected Aug 5, 2014 16:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 5, 2014 16:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Aug 5, 2014 18:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140807-128PB
Laboratory
MSDH Lab
0.0043 mg/l , sample collected Aug 5, 2014 18:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0015 mg/l , sample collected Aug 5, 2014 18:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Apr 14, 2014 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140415-005NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 14, 2014 13:45, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 14, 2014 13:45, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2014 13:45, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2014 – Dec 31, 2014
Collected
Aug 14, 2013 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130815-004TH
Laboratory
MSDH Lab
2.65 ug/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 14, 2013 03:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.71 ug/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.27 ug/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.63 ug/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 14, 2013 03:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
130815-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 14, 2013 03:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2013 03:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2013 03:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 14, 2013 03:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 14, 2013 03:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Feb 25, 2013 01:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130226-019NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2013 01:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 25, 2013 01:30, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2013 01:30, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Sep 19, 2012 03:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120920-016CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 19, 2012 03:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Jul 17, 2012 15:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201211120170
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Jul 17, 2012 15:00, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 17, 2012 15:00, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 17, 2012 15:00, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Jul 17, 2012 15:00, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 16, 2012 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120717-093
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Jul 16, 2012 13:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 16, 2012 13:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Jul 16, 2012 13:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Jul 16, 2012 13:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 16, 2012 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120717-093RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 16, 2012 13:30, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012

Routine (10).