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; 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.
| 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 |
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.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 16 samples, newest first — collected March 5, 2025 to May 11, 2026. The summary above covers all 16.
44 results from the 10 samples listed here: 16 detected, 28 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 1 sampling point 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 |
|---|---|---|
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2026 – Dec 31, 2026 |
| 1.7 ug/l , sample collected May 11, 2026 09:45, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 11, 2026 09:45, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.1 ug/l , sample collected May 11, 2026 09:45, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 0.65 ug/l , sample collected May 11, 2026 09:45, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 3.45 ug/l , sample collected May 11, 2026 09:45, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0018 mg/l , sample collected Dec 3, 2025 12:00, sampling point TF106 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.243 mg/l , sample collected Dec 3, 2025 12:00, sampling point TF106 | 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 Dec 3, 2025 12:00, sampling point TF106 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 3, 2025 12:00, sampling point TF106 | 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 Dec 3, 2025 12:00, sampling point TF106 | 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 Dec 3, 2025 12:00, sampling point TF106 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 65.3 mg/l , sample collected Dec 3, 2025 12:00, sampling point TF106 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 2, 2025 14:00, sampling point TF106 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 2, 2025 13:38, sampling point TF104 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected May 22, 2025 13:28, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 3.7 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 4.7 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2025 13:28, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected May 22, 2025 13:28, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 8.4 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
| 7.3 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 22, 2025 13:28, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2.6 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.1 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 11 ug/l , sample collected May 22, 2025 13:28, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 11.4 ug/l , sample collected Apr 9, 2025 14:30, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 10.8 ug/l , sample collected Apr 9, 2025 14:30, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 23:12, sampling point TF105 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 23:12, sampling point TF105 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 23:12, sampling point TF105 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 13:35, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 13:35, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2025 13:35, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
-
- Collected
- May 11, 2026 09:45
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-191689-1
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Chloroform 2941 EPA method 524.2
- Result
- 1.7 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
- 1.1 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 0.65 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.45 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
- Collected
- Dec 3, 2025 12:00
- Sampling point
- TF106
- Sample type
- Routine
- Lab sample
- IN-251204-005
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0018 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.243 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Dec 3, 2025 12:00
- Sampling point
- TF106
- Sample type
- Routine
- Lab sample
- NA-251204-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 65.3 mg/l
-
- Collected
- Sep 2, 2025 14:00
- Sampling point
- TF106
- Sample type
- Routine
- Lab sample
- CN-250903-041
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 2, 2025 13:38
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- CN-250903-042
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 22, 2025 13:28
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-149904-1
- 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
- 3.7 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 4.7 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
- 8.4 ug/l
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Chloroform 2941 EPA method 524.2
- Result
- 7.3 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
- 2.6 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 11 ug/l
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
- Collected
- Apr 9, 2025 14:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-250410-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 11.4 ug/l
-
- Collected
- Apr 9, 2025 14:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-250410-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
TTHM 2950 EPA method 524.2
- Result
- 10.8 ug/l
-
- Collected
- Mar 5, 2025 23:12
- Sampling point
- TF105
- Sample type
- Routine
- Lab sample
- NI-250306-012
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
- Mar 5, 2025 13:35
- Sampling point
- TF104 Treatment Plant T104
- Sample type
- Routine
- Lab sample
- NI-250306-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
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
Routine (10).