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
MS0270004 , Town of Louise
20 of the 57 analytes this system has been tested for have been detected at least once, across 301 samples on record.
The other 37 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 301 samples on record, detections range from September 9, 1993 to March 26, 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 | 122 of 137 results | Sep 9, 1993 | Jul 24, 2023 |
| Lead 1030 | Inorganic Chemical | 82 of 137 results | Sep 9, 1993 | Jul 24, 2023 |
| Barium 1010 | Inorganic Chemical | 18 of 19 results | Sep 17, 2003 | Feb 11, 2025 |
| TTHM 2950 | Organic Chemical | 17 of 20 results | Jun 7, 2004 | Mar 26, 2025 |
| Fluoride 1025 | Inorganic Chemical | 16 of 19 results | Sep 17, 2003 | Feb 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 15 of 20 results | Jun 7, 2004 | Nov 18, 2024 |
| Chromium 1020 | Inorganic Chemical | 11 of 19 results | Feb 9, 2004 | Jan 9, 2024 |
| Chloroform 2941 | Organic Chemical | 10 of 13 results | Oct 23, 2006 | Nov 18, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 9 of 13 results | Oct 23, 2006 | Nov 18, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 8 of 12 results | Jun 15, 2011 | Nov 18, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 8 of 12 results | Jun 15, 2011 | Nov 18, 2024 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 23, 2019 | Dec 3, 2024 |
| Xylenes, Total 2955 | Organic Chemical | 6 of 27 results | Aug 27, 2007 | Dec 6, 2022 |
| Selenium 1045 | Inorganic Chemical | 4 of 19 results | Mar 14, 2005 | Feb 6, 2006 |
| Nickel 1036 | Inorganic Chemical | 3 of 19 results | Dec 3, 2007 | Mar 2, 2015 |
| Nitrite 1041 | Inorganic Chemical | 3 of 43 results | Apr 23, 2007 | Feb 6, 2013 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 13 results | Apr 17, 2019 | Nov 18, 2024 |
| Ethylbenzene 2992 | Organic Chemical | 2 of 27 results | Aug 27, 2007 | Jun 21, 2010 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Sep 17, 2003 | Feb 9, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 12 results | Jun 16, 2020 | Jun 16, 2020 |
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 301 samples, newest first — collected June 30, 2020 to May 11, 2021. The summary above covers all 301.
36 results from the 10 samples listed here: 7 detected, 29 not detected. Across the whole record it is 345 of 1,407. 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 |
|---|---|---|
|
||
| 23.2 ug/l , sample collected May 11, 2021 11:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2021 – Dec 31, 2021 |
|
||
| 32.4 ug/l , sample collected May 11, 2021 11:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| 0.651 ug/l , sample collected Apr 12, 2021 10:00, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 12, 2021 10:00, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
|
||
| 101 mg/l , sample collected Feb 23, 2021 08:35, sampling point TF103 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 102 mg/l , sample collected Feb 23, 2021 08:30, sampling point TF102 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:25, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:25, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:25, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:20, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:20, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2021 08:20, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Feb 11, 2021 10:00, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 0.0475 mg/l , sample collected Jun 30, 2020 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 30, 2020 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0095 mg/l , sample collected Jun 30, 2020 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 30, 2020 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
-
- Collected
- May 11, 2021 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-210512-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 23.2 ug/l
-
- Collected
- May 11, 2021 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-210512-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
TTHM 2950 EPA method 524.2
- Result
- 32.4 ug/l
-
- Collected
- Apr 12, 2021 10:00
- Sampling point
- TF103 Treatmnt Plant T103
- Sample type
- Routine
- Lab sample
- 210413-015VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2021
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- 0.651 ug/l
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Feb 23, 2021 08:35
- Sampling point
- TF103 Treatmnt Plant T103
- Sample type
- Routine
- Lab sample
- NA-210224-046
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 101 mg/l
-
- Collected
- Feb 23, 2021 08:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NA-210224-045
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 102 mg/l
-
- Collected
- Feb 23, 2021 08:25
- Sampling point
- TF103 Treatmnt Plant T103
- Sample type
- Routine
- Lab sample
- NI-210224-043
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
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
- Feb 23, 2021 08:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-210224-042
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2021
-
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
- Feb 11, 2021 10:00
- Sampling point
- TF103 Treatmnt Plant T103
- Sample type
- Routine
- Lab sample
- CN-210212-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 30, 2020 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200701-100PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0475 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 30, 2020 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200701-099PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0095 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).