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
MS0300163 , Helena Utility District
20 of the 51 analytes this system has been tested for have been detected at least once, across 314 samples on record.
The other 31 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 314 samples on record, detections range from September 22, 2003 to July 22, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 216 of 216 results | Oct 19, 2010 | Jul 22, 2026 |
| Lead 1030 | Inorganic Chemical | 141 of 216 results | Oct 19, 2010 | Jul 22, 2026 |
| TTHM 2950 | Organic Chemical | 24 of 27 results | Sep 16, 2010 | Jun 30, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 21 of 27 results | Sep 16, 2010 | Jun 30, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 12 of 17 results | Oct 1, 2013 | Jun 30, 2026 |
| Chloroform 2941 | Organic Chemical | 12 of 17 results | Oct 1, 2013 | Jun 30, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 12 of 17 results | Oct 1, 2013 | Jun 30, 2026 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Sep 22, 2003 | Nov 5, 2009 |
| Fluoride 1025 | Inorganic Chemical | 10 of 10 results | Sep 22, 2003 | Nov 5, 2009 |
| Bromodichloromethane 2943 | Organic Chemical | 9 of 17 results | Oct 1, 2013 | Jun 30, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 6 of 17 results | Oct 1, 2013 | Jun 30, 2026 |
| Chromium 1020 | Inorganic Chemical | 5 of 10 results | Sep 22, 2003 | Dec 12, 2005 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 of 17 results | Apr 9, 2014 | Jun 25, 2018 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 17 results | Oct 1, 2013 | Sep 27, 2016 |
| Bromoform 2942 | Organic Chemical | 3 of 17 results | Jul 7, 2014 | Sep 27, 2016 |
| Nickel 1036 | Inorganic Chemical | 2 of 10 results | Nov 5, 2009 | Nov 5, 2009 |
| Selenium 1045 | Inorganic Chemical | 2 of 10 results | Mar 14, 2005 | Dec 12, 2005 |
| Arsenic 1005 | Inorganic Chemical | 1 of 10 results | Dec 12, 2005 | Dec 12, 2005 |
| Cadmium 1015 | Inorganic Chemical | 1 of 10 results | Dec 12, 2005 | Dec 12, 2005 |
| Sulfate 1055 | Inorganic Chemical | 1 of 4 results | Sep 22, 2003 | Sep 22, 2003 |
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 211–220 of 314 samples, newest first — collected February 15, 2012 to November 8, 2012. The summary above covers all 314.
20 results from the 10 samples listed here: 16 detected, 4 not detected. Across the whole record it is 495 of 1,060. 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 |
|---|---|---|
|
||
| 0.0125 mg/l , sample collected Nov 8, 2012 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| 0.0008 mg/l , sample collected Nov 8, 2012 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0483 mg/l , sample collected Nov 8, 2012 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| 0.0038 mg/l , sample collected Nov 8, 2012 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0192 mg/l , sample collected Nov 8, 2012 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| 0.0007 mg/l , sample collected Nov 8, 2012 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0148 mg/l , sample collected Nov 8, 2012 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 8, 2012 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0044 mg/l , sample collected Nov 8, 2012 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 8, 2012 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0414 mg/l , sample collected Nov 8, 2012 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| 0.0006 mg/l , sample collected Nov 8, 2012 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0163 mg/l , sample collected Nov 8, 2012 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 8, 2012 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0289 mg/l , sample collected Nov 8, 2012 04:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 8, 2012 04:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jul 1, 2012 – Dec 31, 2012 |
|
||
| 0.0381 mg/l , sample collected Feb 15, 2012, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Jun 30, 2012 |
| 0.0036 mg/l , sample collected Feb 15, 2012, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Jun 30, 2012 |
|
||
| 0.0702 mg/l , sample collected Feb 15, 2012, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Jun 30, 2012 |
| 3.012 mg/l , sample collected Feb 15, 2012, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Jun 30, 2012 |
-
- Collected
- Nov 8, 2012 05:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-072PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0125 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Nov 8, 2012 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-071PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0483 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0038 mg/l
-
- Collected
- Nov 8, 2012 05:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-070PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0192 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Nov 8, 2012 05:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-069PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0148 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Nov 8, 2012 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-068PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0044 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Nov 8, 2012 06:00
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-067PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0414 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Nov 8, 2012 05:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-066PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0163 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Nov 8, 2012 04:30
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 121109-065PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Dec 31, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0289 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 15, 2012
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120216-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Jun 30, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0381 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0036 mg/l
-
- Collected
- Feb 15, 2012
- Sampling point
- DS000
- Sample type
- Routine
- Lab sample
- 120216-026PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Jun 30, 2012
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0702 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 3.012 mg/l
Routine (10).