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
MS0370001 , Arnold Line Water Association
26 of the 60 analytes this system has been tested for have been detected at least once, across 536 samples on record.
The other 34 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 536 samples on record, detections range from September 29, 2003 to May 11, 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 | 286 of 286 results | Sep 5, 2007 | Jul 16, 2024 |
| Lead 1030 | Inorganic Chemical | 167 of 286 results | Sep 5, 2007 | Jul 16, 2024 |
| Barium 1010 | Inorganic Chemical | 35 of 35 results | Sep 29, 2003 | Dec 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 35 of 35 results | Sep 29, 2003 | Dec 3, 2025 |
| TTHM 2950 | Organic Chemical | 23 of 23 results | Jun 21, 2004 | May 11, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 21 of 23 results | Sep 17, 2007 | May 22, 2025 |
| Chromium 1020 | Inorganic Chemical | 18 of 35 results | Sep 29, 2003 | May 15, 2017 |
| Chloroform 2941 | Organic Chemical | 17 of 17 results | Sep 17, 2007 | May 11, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 17 of 17 results | Sep 17, 2007 | May 11, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 16 of 17 results | Sep 17, 2007 | May 22, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 16 of 17 results | Sep 17, 2007 | May 22, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 5, 2012 | Oct 3, 2012 |
| Dibromochloromethane 2944 | Organic Chemical | 12 of 17 results | Sep 17, 2007 | May 11, 2026 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Sep 16, 2019 | Dec 3, 2025 |
| Sulfate 1055 | Inorganic Chemical | 8 of 8 results | Sep 29, 2003 | Mar 3, 2004 |
| Nickel 1036 | Inorganic Chemical | 6 of 35 results | Dec 3, 2007 | May 15, 2017 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 6 of 6 results | Sep 21, 2009 | Mar 8, 2010 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 6 of 21 results | Sep 21, 2009 | Mar 8, 2010 |
| Radium-226 4020 | Radionuclide | 6 of 21 results | Sep 21, 2009 | Mar 8, 2010 |
| Gross Beta Particle Activity 4100 | Radionuclide | 6 of 6 results | Sep 21, 2009 | Mar 8, 2010 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 6 of 6 results | Sep 21, 2009 | Mar 8, 2010 |
| Radium-228 4030 | Radionuclide | 5 of 21 results | Sep 21, 2009 | Mar 8, 2010 |
| Monobromoacetic Acid 2453 | Organic Chemical | 3 of 17 results | Aug 28, 2018 | Sep 8, 2020 |
| Cyanide 1024 | Inorganic Chemical | 1 of 35 results | Feb 9, 2021 | Feb 9, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 17 results | Aug 28, 2018 | Aug 28, 2018 |
| Nitrate 1040 | Inorganic Chemical | 1 of 66 results | Jul 10, 2006 | Jul 10, 2006 |
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 31–40 of 536 samples, newest first — collected May 15, 2024 to July 16, 2024. The summary above covers all 536.
38 results from the 10 samples listed here: 22 detected, 16 not detected. Across the whole record it is 742 of 2,220. 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 10 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0566 mg/l , sample collected Jul 16, 2024 07:46, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:46, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0818 mg/l , sample collected Jul 16, 2024 07:43, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:43, sampling point LC0009 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.004 mg/l , sample collected Jul 16, 2024 07:39, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:39, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0644 mg/l , sample collected Jul 16, 2024 07:34, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:34, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0842 mg/l , sample collected Jul 16, 2024 07:28, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:28, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0776 mg/l , sample collected Jul 16, 2024 07:24, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:24, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0567 mg/l , sample collected Jul 16, 2024 07:15, sampling point LC0032 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:15, sampling point LC0032 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0868 mg/l , sample collected Jul 16, 2024 07:02, sampling point LC0024 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 07:02, sampling point LC0024 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 15, 2024 14:04, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 2.3 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 2.4 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 15, 2024 14:04, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 15, 2024 14:04, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 4.7 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
| 5.2 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 15, 2024 14:04, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2.5 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 8.7 ug/l , sample collected May 15, 2024 14:04, sampling point SM2 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 15, 2024 13:36, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 3.6 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 3.8 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 15, 2024 13:36, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 15, 2024 13:36, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 7.4 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
| 8.2 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 15, 2024 13:36, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 4.1 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.6 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 13.9 ug/l , sample collected May 15, 2024 13:36, sampling point SM1 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
-
- Collected
- Jul 16, 2024 07:46
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-063
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0566 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:43
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-064
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0818 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:39
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-065
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.004 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:34
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-066
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0644 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:28
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-067
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0842 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:24
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-068
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0776 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:15
- Sampling point
- LC0032 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-069
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0567 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 07:02
- Sampling point
- LC0024 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240717-070
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0868 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 15, 2024 14:04
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-104759-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 2.3 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 2.4 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 4.7 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 5.2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 2.5 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 8.7 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
- Collected
- May 15, 2024 13:36
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-104759-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 3.6 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 3.8 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 7.4 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 8.2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 4.1 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.6 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 13.9 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
Routine (10).