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
MS0110003 , Hermanville Water Association
36 of the 59 analytes this system has been tested for have been detected at least once, across 708 samples on record.
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 708 samples on record, detections range from October 19, 1993 to September 28, 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 | 144 of 180 results | Oct 19, 1993 | Sep 28, 2025 |
| Lead 1030 | Inorganic Chemical | 118 of 180 results | Oct 19, 1993 | Sep 26, 2025 |
| TTHM 2950 | Organic Chemical | 89 of 111 results | Sep 13, 2004 | Jul 26, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 85 of 113 results | Sep 13, 2004 | Jul 16, 2024 |
| Chloroform 2941 | Organic Chemical | 62 of 73 results | May 15, 2006 | Sep 2, 2020 |
| Bromodichloromethane 2943 | Organic Chemical | 55 of 73 results | May 15, 2006 | Sep 2, 2020 |
| Dichloroacetic Acid 2451 | Organic Chemical | 47 of 67 results | Mar 9, 2009 | Sep 2, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 36 of 67 results | Mar 9, 2009 | Sep 2, 2020 |
| Barium 1010 | Inorganic Chemical | 31 of 31 results | Mar 12, 2002 | Jan 22, 2025 |
| Fluoride 1025 | Inorganic Chemical | 31 of 31 results | Mar 12, 2002 | Jan 22, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 26 of 148 results | Jul 14, 2004 | Oct 16, 2013 |
| Chromium 1020 | Inorganic Chemical | 23 of 31 results | Jan 26, 2004 | Jan 22, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 8, 2012 | Oct 11, 2012 |
| Monochloroacetic Acid 2450 | Organic Chemical | 14 of 67 results | Sep 8, 2009 | Sep 2, 2020 |
| Nickel 1036 | Inorganic Chemical | 12 of 31 results | Dec 12, 2005 | Jan 22, 2025 |
| Ethylbenzene 2992 | Organic Chemical | 10 of 148 results | Jul 14, 2004 | Oct 16, 2013 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 9 of 64 results | Jan 30, 2019 | Feb 13, 2025 |
| Nitrate 1040 | Inorganic Chemical | 9 of 64 results | Jan 30, 2019 | Feb 13, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Feb 9, 2021 | Nov 4, 2024 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 73 results | Oct 31, 2012 | Sep 2, 2020 |
| Vinyl Chloride 2976 | Organic Chemical | 6 of 148 results | Apr 14, 2008 | Feb 24, 2020 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 5 of 6 results | Mar 22, 2012 | Jun 11, 2012 |
| Selenium 1045 | Inorganic Chemical | 5 of 31 results | Feb 14, 2005 | Jan 25, 2006 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 of 67 results | Mar 13, 2013 | Feb 24, 2020 |
| Carbon Tetrachloride 2982 | Organic Chemical | 4 of 148 results | Jun 26, 2017 | May 2, 2018 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 67 results | Nov 20, 2018 | Sep 2, 2020 |
| Combined Uranium 4006 | Radionuclide | 3 of 18 results | Jun 11, 2012 | Jun 11, 2012 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 2 of 6 results | Mar 22, 2012 | Mar 23, 2012 |
| Dichloromethane 2964 | Organic Chemical | 2 of 148 results | Jun 2, 2009 | Jun 2, 2009 |
| Nitrite 1041 | Inorganic Chemical | 1 of 64 results | Dec 21, 2020 | Dec 21, 2020 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 21 results | Jun 11, 2012 | Jun 11, 2012 |
| Radium-226 4020 | Radionuclide | 1 of 21 results | Jun 11, 2012 | Jun 11, 2012 |
| Radium-228 4030 | Radionuclide | 1 of 21 results | Jun 11, 2012 | Jun 11, 2012 |
| Cyanide 1024 | Inorganic Chemical | 1 of 28 results | Dec 12, 2005 | Dec 12, 2005 |
| Arsenic 1005 | Inorganic Chemical | 1 of 31 results | Feb 14, 2005 | Feb 14, 2005 |
| Sulfate 1055 | Inorganic Chemical | 1 of 4 results | Mar 12, 2002 | Mar 12, 2002 |
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 708 samples, newest first — collected April 11, 2024 to October 8, 2024. The summary above covers all 708.
30 results from the 10 samples listed here: 2 detected, 28 not detected. Across the whole record it is 869 of 5,002. 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 2 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 |
|---|---|---|
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:00, sampling point SM1 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 8, 2024 08:05, sampling point SM2 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| 1.37 ug/l , sample collected Jul 16, 2024 08:00, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| 1.41 ug/l , sample collected Jul 16, 2024 08:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 08:00, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 16, 2024 08:00, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jul 1, 2024 – Sep 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 11, 2024 07:30, sampling point SM2 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 11, 2024 07:30, sampling point SM1 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 11, 2024 07:30, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 11, 2024 07:30, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
-
- Collected
- Oct 8, 2024 08:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-123579-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 8, 2024 08:05
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-123579-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 08:00
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- HA-240717-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.37 ug/l
-
- Collected
- Jul 16, 2024 08:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-240717-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.41 ug/l
-
- Collected
- Jul 16, 2024 08:00
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- TH-240717-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Jul 16, 2024 08:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-240717-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2024 – Sep 30, 2024
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Apr 11, 2024 07:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- TH-240412-006
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Apr 11, 2024 07:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-240412-005
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Apr 11, 2024 07:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- HA-240412-006
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Apr 11, 2024 07:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-240412-005
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
Routine (10).