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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

MS0040001 , Conehoma Water Assn #1

20 of the 57 analytes this system has been tested for have been detected at least once, across 330 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 330 samples on record, detections range from October 12, 1993 to July 27, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 Conehoma Water Assn #1, 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 135 of 149 results Oct 12, 1993 Jun 4, 2025
Lead 1030 Inorganic Chemical 73 of 149 results Oct 12, 1993 Jun 4, 2025
TTHM 2950 Organic Chemical 23 of 24 results May 5, 2004 Jul 27, 2026
Barium 1010 Inorganic Chemical 22 of 22 results Jan 15, 2002 Jan 14, 2025
Chloroform 2941 Organic Chemical 18 of 19 results Jun 27, 2007 Jul 27, 2026
Bromodichloromethane 2943 Organic Chemical 16 of 19 results Jun 27, 2007 Jul 27, 2026
Dibromochloromethane 2944 Organic Chemical 15 of 19 results Jun 27, 2007 Jul 27, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 13 of 22 results Jun 27, 2007 Aug 6, 2024
Dichloroacetic Acid 2451 Organic Chemical 12 of 17 results Jul 15, 2008 Oct 28, 2024
Chromium 1020 Inorganic Chemical 11 of 22 results Dec 13, 2005 Jan 14, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 8, 2011 Jul 13, 2012
Trichloroacetic Acid 2452 Organic Chemical 7 of 17 results Jul 15, 2008 May 9, 2024
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 17, 2019 Oct 15, 2024
Fluoride 1025 Inorganic Chemical 6 of 22 results Dec 13, 2005 May 5, 2014
Nickel 1036 Inorganic Chemical 6 of 22 results Jan 15, 2002 May 5, 2014
Sulfate 1055 Inorganic Chemical 4 of 4 results Jan 15, 2002 Jan 14, 2004
Xylenes, Total 2955 Organic Chemical 3 of 34 results Sep 21, 2011 Jul 9, 2013
Nitrite 1041 Inorganic Chemical 2 of 44 results Jun 5, 2006 Jan 17, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 44 results May 5, 2004 Jun 5, 2006
Nitrate 1040 Inorganic Chemical 2 of 44 results May 5, 2004 May 5, 2004

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 11–20 of 23 samples, newest first — collected October 28, 2024 to June 3, 2025. The summary above covers all 23.

47 results from the 10 samples listed here: 9 detected, 38 not detected. Across the whole record it is 386 of 1,676. 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 4 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 Conehoma Water Assn #1, every result from 11 to 20 of 23 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
Jun 3, 2025 11:01
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-250604-022
Laboratory
MSDH Lab
0.0122 mg/l , sample collected Jun 3, 2025 11:01, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2025 11:01, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jun 3, 2025 11:24
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-250604-018
Laboratory
MSDH Lab
0.0069 mg/l , sample collected Jun 3, 2025 11:24, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2025 11:24, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jun 3, 2025 12:05
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-250604-019
Laboratory
MSDH Lab
0.159 mg/l , sample collected Jun 3, 2025 12:05, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 3, 2025 12:05, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
May 7, 2025 11:27
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-250508-013
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 7, 2025 11:27, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
May 7, 2025 11:51
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-250508-012
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 7, 2025 11:51, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Jan 14, 2025 15:29
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250115-047
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0166 mg/l , sample collected Jan 14, 2025 15:29, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Jan 14, 2025 15:29, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 15:29, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 14, 2025 14:54
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250115-046
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0371 mg/l , sample collected Jan 14, 2025 14:54, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0009 mg/l , sample collected Jan 14, 2025 14:54, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:54, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 14, 2025 14:17
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250115-046
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:17, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:17, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:17, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jan 14, 2025 14:31
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250115-045
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:31, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:31, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 14, 2025 14:31, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 28, 2024 12:11
Sampling point
SM3 Location withheld
Sample type
Routine
Lab sample
810-125913-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
0.67 ug/l , sample collected Oct 28, 2024 12:11, sampling point SM3 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 28, 2024 12:11, sampling point SM3 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0.67 ug/l , sample collected Oct 28, 2024 12:11, sampling point SM3 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (10).