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
MS0380009 , Toomsuba Water Association
43 of the 73 analytes this system has been tested for have been detected at least once, across 404 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 404 samples on record, detections range from September 29, 2003 to July 8, 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 | 132 of 132 results | Aug 29, 2007 | Jul 31, 2024 |
| Lead 1030 | Inorganic Chemical | 42 of 132 results | Aug 30, 2007 | Jul 30, 2024 |
| Barium 1010 | Inorganic Chemical | 41 of 41 results | Sep 29, 2003 | Jul 8, 2026 |
| Fluoride 1025 | Inorganic Chemical | 28 of 44 results | Sep 29, 2003 | Jul 8, 2026 |
| TTHM 2950 | Organic Chemical | 18 of 22 results | Jun 23, 2004 | Jun 9, 2026 |
| Chromium 1020 | Inorganic Chemical | 15 of 41 results | Sep 29, 2003 | Apr 9, 2025 |
| Nickel 1036 | Inorganic Chemical | 14 of 38 results | Mar 3, 2004 | Apr 9, 2025 |
| Chloroform 2941 | Organic Chemical | 11 of 16 results | Aug 28, 2018 | Jun 9, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 11 of 16 results | Aug 28, 2018 | Jun 9, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 11 of 16 results | Aug 28, 2018 | Jun 9, 2026 |
| Sodium 1052 | Inorganic Chemical | 10 of 10 results | May 14, 2010 | Feb 11, 2025 |
| Sulfate 1055 | Inorganic Chemical | 9 of 9 results | Sep 29, 2003 | May 14, 2010 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 21 results | Aug 15, 2007 | Apr 9, 2025 |
| Bromoform 2942 | Organic Chemical | 6 of 16 results | Mar 11, 2024 | Jun 9, 2026 |
| Xylenes, Total 2955 | Organic Chemical | 4 of 59 results | Feb 11, 2004 | Aug 11, 2021 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 of 12 results | Aug 29, 2011 | Apr 5, 2012 |
| Nitrite 1041 | Inorganic Chemical | 3 of 67 results | Feb 21, 2011 | Feb 21, 2011 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Iron, Field Result FEFD | Inorganic Chemical | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | May 14, 2010 | May 14, 2010 |
| Dichloromethane 2964 | Organic Chemical | 3 of 59 results | Aug 12, 2004 | Aug 12, 2004 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 15 results | Aug 14, 2019 | Jun 5, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 15 results | Aug 14, 2019 | Sep 15, 2020 |
| Color 1905 | Water Quality | 2 of 2 results | May 14, 2010 | May 14, 2010 |
| Selenium 1045 | Inorganic Chemical | 2 of 41 results | Mar 3, 2004 | Mar 28, 2005 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 9 results | Jun 10, 2020 | Jun 10, 2020 |
| Radium-226 4020 | Radionuclide | 1 of 13 results | Jun 10, 2020 | Jun 10, 2020 |
| Radium-228 4030 | Radionuclide | 1 of 13 results | Jun 10, 2020 | Jun 10, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 15 results | Aug 14, 2019 | Aug 14, 2019 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 15 results | Aug 14, 2019 | Aug 14, 2019 |
| PH 1925 | Water Quality | 1 of 1 result | May 14, 2010 | May 14, 2010 |
| Arsenic 1005 | Inorganic Chemical | 1 of 41 results | Mar 3, 2004 | Mar 3, 2004 |
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 41–50 of 404 samples, newest first — collected March 26, 2024 to July 30, 2024. The summary above covers all 404.
36 results from the 10 samples listed here: 16 detected, 20 not detected. Across the whole record it is 427 of 2,499. 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 6 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 |
|---|---|---|
|
||
| 0.176 mg/l , sample collected Jul 30, 2024 06:00, sampling point LC0012 | 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 30, 2024 06:00, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.222 mg/l , sample collected Jul 29, 2024 12:30, 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 29, 2024 12:30, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0399 mg/l , sample collected Jul 29, 2024 14:15, sampling point LC0002 | 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 29, 2024 14:15, sampling point LC0002 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0157 mg/l , sample collected Jul 29, 2024 14:00, sampling point LC0001 | 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 29, 2024 14:00, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:30, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 1 ug/l , sample collected Jun 5, 2024 13:30, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:30, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:30, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:30, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:30, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
| 2 ug/l , sample collected Jun 5, 2024 13:30, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 0.87 ug/l , sample collected Jun 5, 2024 13:30, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3 ug/l , sample collected Jun 5, 2024 13:30, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 3.1 ug/l , sample collected Jun 5, 2024 13:30, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 8.97 ug/l , sample collected Jun 5, 2024 13:30, 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 Jun 5, 2024 13:00, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2024 – Jun 30, 2024 |
| 0.85 ug/l , sample collected Jun 5, 2024 13:00, sampling point SM1 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 5, 2024 13:00, sampling point SM1 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.2 ug/l , sample collected Jun 5, 2024 13:00, sampling point SM1 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.4 ug/l , sample collected Jun 5, 2024 13:00, sampling point SM1 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 3.45 ug/l , sample collected Jun 5, 2024 13:00, sampling point SM1 | TTHM 2950 EPA method 524.2 | Apr 1, 2024 – Jun 30, 2024 |
|
||
| 1.98 ug/l , sample collected May 15, 2024 13:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 3.54 ug/l , sample collected May 15, 2024 13:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 8, 2024 14:00, sampling point TF083 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2024 – Dec 31, 2024 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 13:00, sampling point TF081 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 13:00, sampling point TF081 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 26, 2024 13:00, sampling point TF081 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
-
- Collected
- Jul 30, 2024 06:00
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240801-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.176 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2024 12:30
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240801-117
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.222 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2024 14:15
- Sampling point
- LC0002 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240801-115
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0399 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jul 29, 2024 14:00
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240801-037
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0157 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 5, 2024 13:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-107359-2
- 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
- 1 ug/l
- 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
- Apr 1, 2024 – Jun 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 0.87 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 3.1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 8.97 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
- Collected
- Jun 5, 2024 13:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-107359-1
- 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
- Apr 1, 2024 – Jun 30, 2024
-
Chloroform 2941 EPA method 524.2
- Result
- 0.85 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
- 1.2 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.4 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.45 ug/l
- Monitoring period
- Apr 1, 2024 – Jun 30, 2024
-
- Collected
- May 15, 2024 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-240516-014
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.98 ug/l
-
- Collected
- May 15, 2024 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-240516-014
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 3.54 ug/l
-
- Collected
- May 8, 2024 14:00
- Sampling point
- TF083 Treatment Facility TF083
- Sample type
- Routine
- Lab sample
- CN-240509-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 26, 2024 13:00
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- NI-240327-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
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).