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
MS0040029 , Conehoma Water Assn #2
21 of the 57 analytes this system has been tested for have been detected at least once, across 245 samples on record.
The other 36 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 245 samples on record, detections range from November 9, 1993 to December 2, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 117 of 152 results | Nov 9, 1993 | Jun 4, 2025 |
| Lead 1030 | Inorganic Chemical | 53 of 152 results | Nov 9, 1993 | Jun 4, 2025 |
| TTHM 2950 | Organic Chemical | 18 of 19 results | May 5, 2004 | Dec 2, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 13 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Chloroform 2941 | Organic Chemical | 12 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 12 of 15 results | Jul 15, 2008 | Dec 2, 2025 |
| Barium 1010 | Inorganic Chemical | 11 of 11 results | Jan 29, 2002 | Jan 14, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 19 results | Jun 27, 2007 | Feb 26, 2024 |
| Chromium 1020 | Inorganic Chemical | 6 of 11 results | Jan 29, 2002 | Jan 14, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 6 of 14 results | Jul 15, 2008 | May 9, 2024 |
| Nickel 1036 | Inorganic Chemical | 5 of 11 results | Feb 14, 2005 | Sep 19, 2018 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 8, 2011 | Jul 13, 2012 |
| Fluoride 1025 | Inorganic Chemical | 4 of 11 results | Feb 14, 2005 | Jan 14, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 17, 2019 | Oct 15, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 14 results | Jul 15, 2008 | Dec 7, 2023 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 14 results | Jul 15, 2008 | Mar 19, 2019 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Jan 29, 2002 | Jan 14, 2004 |
| Bromoform 2942 | Organic Chemical | 1 of 15 results | Aug 6, 2024 | Aug 6, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Jul 15, 2008 | Jul 15, 2008 |
| Cadmium 1015 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 2005 |
| Selenium 1045 | Inorganic Chemical | 1 of 11 results | Feb 14, 2005 | Feb 14, 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 61–70 of 245 samples, newest first — collected August 29, 2017 to June 18, 2019. The summary above covers all 245.
43 results from the 10 samples listed here: 10 detected, 33 not detected. Across the whole record it is 285 of 847. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.3476 mg/l , sample collected Jun 18, 2019 18:33, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 18, 2019 18:33, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 0.003 mg/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| 2.07 ug/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.84 ug/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.64 ug/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 5.55 ug/l , sample collected Mar 19, 2019 14:15, sampling point MRT000 | TTHM 2950 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 13:38, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 13:38, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 28, 2019 13:38, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2019 – Dec 31, 2019 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.041 mg/l , sample collected Sep 19, 2018 02:50, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0027 mg/l , sample collected Sep 19, 2018 02:50, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| 0.0005 mg/l , sample collected Sep 19, 2018 02:50, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 19, 2018 02:50, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 25, 2018 14:15, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2021 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 16, 2018 02:05, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2018 12:20, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 23, 2018 12:20, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2018 12:20, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, 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 29, 2017 12:20, 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 29, 2017 12:20, 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 29, 2017 12:20, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2017 – Dec 31, 2019 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 29, 2017 12:20, sampling point MRT000 | TTHM 2950 | Jan 1, 2017 – Dec 31, 2019 |
-
- Collected
- Jun 18, 2019 18:33
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 190619-090PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.3476 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 19, 2019 14:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190320-001HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.003 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Mar 19, 2019 14:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 190320-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.07 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.84 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.64 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 5.55 ug/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Jan 28, 2019 13:38
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 190129-038NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2019
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Sep 19, 2018 02:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180920-019IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Barium 1010 EPA method 200.8
- Result
- 0.041 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Chromium 1020 EPA method 200.8
- Result
- 0.0027 mg/l
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Fluoride 1025 EPA method 300.0
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Nickel 1036 EPA method 200.8
- Result
- 0.0005 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Jun 25, 2018 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180626-006RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2021
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 16, 2018 02:05
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180417-015CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jan 23, 2018 12:20
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180124-005NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Aug 29, 2017 12:20
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170830-020HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- Not detected below 0.006 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
-
- Collected
- Aug 29, 2017 12:20
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170830-020TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2017 – Dec 31, 2019
Routine (10).