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
MS0130018 , Golden Triangle Water Assn #1
39 of the 71 analytes this system has been tested for have been detected at least once, across 367 samples on record.
The other 32 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 367 samples on record, detections range from August 9, 1993 to August 19, 2025. 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 | 128 of 149 results | Aug 9, 1993 | Aug 19, 2025 |
| Lead 1030 | Inorganic Chemical | 103 of 150 results | Aug 9, 1993 | Aug 19, 2025 |
| Barium 1010 | Inorganic Chemical | 32 of 32 results | Sep 8, 2003 | Feb 5, 2025 |
| Fluoride 1025 | Inorganic Chemical | 32 of 33 results | Sep 8, 2003 | Feb 5, 2025 |
| Chromium 1020 | Inorganic Chemical | 20 of 32 results | Jan 26, 2004 | Feb 5, 2025 |
| Arsenic 1005 | Inorganic Chemical | 17 of 32 results | Jan 26, 2004 | Feb 5, 2025 |
| Selenium 1045 | Inorganic Chemical | 16 of 32 results | Sep 8, 2003 | Feb 5, 2025 |
| Nickel 1036 | Inorganic Chemical | 13 of 32 results | Jan 26, 2004 | May 20, 2019 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 12 of 17 results | Jul 9, 2007 | Mar 6, 2025 |
| Sodium 1052 | Inorganic Chemical | 10 of 10 results | Jan 17, 2014 | Oct 30, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 12 results | Mar 7, 2012 | Oct 4, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 9 of 14 results | Dec 17, 2019 | Mar 6, 2025 |
| TTHM 2950 | Organic Chemical | 9 of 16 results | May 10, 2004 | Mar 6, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 6 of 14 results | Aug 21, 2024 | Mar 6, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 14 results | May 20, 2024 | Mar 6, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 4 of 65 results | Feb 13, 2024 | Feb 12, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 of 14 results | Aug 13, 2008 | May 20, 2024 |
| Nitrite 1041 | Inorganic Chemical | 3 of 65 results | Feb 12, 2025 | Feb 12, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 14 results | Dec 17, 2019 | May 20, 2024 |
| Bromoform 2942 | Organic Chemical | 3 of 14 results | Aug 13, 2008 | May 20, 2024 |
| Cadmium 1015 | Inorganic Chemical | 3 of 32 results | Feb 14, 2005 | Jan 23, 2006 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 28 results | Apr 14, 2020 | Feb 28, 2024 |
| Toluene 2991 | Organic Chemical | 2 of 28 results | Apr 14, 2020 | Feb 28, 2024 |
| Nitrate 1040 | Inorganic Chemical | 2 of 65 results | May 3, 2004 | Feb 13, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Dec 17, 2019 | Dec 17, 2019 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Magnesium 1031 | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Manganese 1032 | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Potassium 1042 | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Residue, Total, Filterable 1057 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Color 1905 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| PH 1925 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Calculated Sodium NACA | Water Quality | 1 of 1 result | Jan 17, 2014 | Jan 17, 2014 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 14 results | Aug 13, 2008 | Aug 13, 2008 |
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 31 samples, newest first — collected August 18, 2025 to June 23, 2026. The summary above covers all 31.
24 results from the 10 samples listed here: 4 detected, 20 not detected. Across the whole record it is 464 of 1,720. 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 3 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 Jun 23, 2026 10:00, sampling point SM1 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 23, 2026 10:00, sampling point SM1 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 23, 2026 10:00, sampling point SM1 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 23, 2026 10:00, sampling point SM1 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 23, 2026 10:00, sampling point SM1 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 23, 2026 10:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 12:35, sampling point TF104 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 12:35, sampling point TF104 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 12:35, sampling point TF104 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 11:20, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 11:20, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 11:20, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 10:45, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 10:45, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 25, 2026 10:45, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 27, 2025 13:15, sampling point TF104 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 27, 2025 11:30, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 27, 2025 12:25, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.156 mg/l , sample collected Aug 19, 2025 05:00, sampling point LC027 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 19, 2025 05:00, sampling point LC027 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0035 mg/l , sample collected Aug 19, 2025 09:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 2 ug/l , sample collected Aug 19, 2025 09:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0396 mg/l , sample collected Aug 18, 2025 06:00, sampling point LC026 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 18, 2025 06:00, sampling point LC026 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
-
- Collected
- Jun 23, 2026 10:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- 810-197287-1
- 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
-
- Collected
- Feb 25, 2026 12:35
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- NI-260226-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
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 25, 2026 11:20
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- NI-260226-015
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
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 25, 2026 10:45
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-260226-016
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
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
- Aug 27, 2025 13:15
- Sampling point
- TF104 Treatment Facility TF104
- Sample type
- Routine
- Lab sample
- CN-250828-015
- 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
- Aug 27, 2025 11:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- CN-250828-014
- 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
- Aug 27, 2025 12:25
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250828-013
- 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
- Aug 19, 2025 05:00
- Sampling point
- LC027 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250828-021
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.156 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 19, 2025 09:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250828-030
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0035 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2 ug/l
-
- Collected
- Aug 18, 2025 06:00
- Sampling point
- LC026 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250828-023
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0396 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).