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
MS0080002 , Town of Carrollton
26 of the 57 analytes this system has been tested for have been detected at least once, across 415 samples on record.
The other 31 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 415 samples on record, detections range from August 22, 1993 to December 17, 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 | 161 of 183 results | Aug 23, 1993 | Sep 23, 2025 |
| Lead 1030 | Inorganic Chemical | 139 of 183 results | Aug 22, 1993 | Sep 23, 2025 |
| TTHM 2950 | Organic Chemical | 28 of 32 results | Sep 13, 2004 | Dec 17, 2025 |
| Barium 1010 | Inorganic Chemical | 28 of 29 results | Jun 25, 2002 | Jan 28, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 25 of 32 results | Sep 13, 2004 | Dec 17, 2025 |
| Chloroform 2941 | Organic Chemical | 25 of 25 results | Jun 4, 2007 | Dec 17, 2025 |
| Fluoride 1025 | Inorganic Chemical | 23 of 28 results | Jun 25, 2002 | Jan 28, 2025 |
| Chromium 1020 | Inorganic Chemical | 23 of 29 results | Jun 25, 2002 | Oct 28, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 19 of 25 results | Jun 22, 2009 | Dec 17, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 18 of 25 results | Jun 22, 2009 | Dec 17, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 17 of 25 results | Jun 22, 2009 | Dec 17, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 16 of 25 results | Jun 22, 2009 | Dec 17, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 13 of 25 results | Jun 22, 2009 | Dec 17, 2025 |
| Bromoform 2942 | Organic Chemical | 11 of 25 results | Jun 22, 2009 | Oct 6, 2025 |
| Arsenic 1005 | Inorganic Chemical | 9 of 29 results | Jan 23, 2006 | Jan 28, 2025 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Sep 23, 2019 | Oct 28, 2024 |
| Nickel 1036 | Inorganic Chemical | 7 of 29 results | Dec 20, 2007 | Oct 28, 2024 |
| Nitrite 1041 | Inorganic Chemical | 6 of 63 results | Jun 13, 2006 | Jan 18, 2023 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 15 results | Mar 13, 2012 | Oct 10, 2012 |
| Selenium 1045 | Inorganic Chemical | 5 of 29 results | Feb 16, 2005 | Mar 19, 2008 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 of 25 results | Dec 21, 2009 | Sep 25, 2025 |
| Cyanide 1024 | Inorganic Chemical | 3 of 27 results | Dec 20, 2007 | Mar 15, 2021 |
| Cadmium 1015 | Inorganic Chemical | 3 of 29 results | Feb 16, 2005 | Jan 23, 2006 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 2 of 63 results | Jan 18, 2017 | Jan 18, 2017 |
| Nitrate 1040 | Inorganic Chemical | 2 of 63 results | Jan 18, 2017 | Jan 18, 2017 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 25 results | Jun 8, 2010 | Jun 8, 2010 |
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 11–20 of 36 samples, newest first — collected August 5, 2025 to September 23, 2025. The summary above covers all 36.
18 results from the 10 samples listed here: 16 detected, 2 not detected. Across the whole record it is 602 of 1,801. 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 7 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 |
|---|---|---|
|
||
| 0.0377 mg/l , sample collected Sep 23, 2025 09:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 5.3 ug/l , sample collected Sep 23, 2025 09:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0713 mg/l , sample collected Sep 23, 2025 09:45, sampling point LC008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.7 ug/l , sample collected Sep 23, 2025 09:45, sampling point LC008 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.274 mg/l , sample collected Sep 23, 2025 10:00, sampling point LC016 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 23, 2025 10:00, sampling point LC016 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.315 mg/l , sample collected Sep 23, 2025 10:05, sampling point LC009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 23, 2025 10:05, sampling point LC009 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.461 mg/l , sample collected Sep 23, 2025 10:15, sampling point LC011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 23, 2025 10:15, sampling point LC011 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.499 mg/l , sample collected Sep 23, 2025 10:20, sampling point LC010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 2.2 ug/l , sample collected Sep 23, 2025 10:20, sampling point LC010 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 0.0929 mg/l , sample collected Sep 23, 2025 10:30, sampling point LC012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.5 ug/l , sample collected Sep 23, 2025 10:30, sampling point LC012 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 1.11 mg/l , sample collected Sep 23, 2025 10:45, sampling point LC007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Sep 23, 2025 10:45, sampling point LC007 | Lead 1030 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 5, 2025 14:48, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 5, 2025 14:40, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
-
- Collected
- Sep 23, 2025 09:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-250924-048
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0377 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 5.3 ug/l
-
- Collected
- Sep 23, 2025 09:45
- Sampling point
- LC008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-047
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0713 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.7 ug/l
-
- Collected
- Sep 23, 2025 10:00
- Sampling point
- LC016 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-046
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.274 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Sep 23, 2025 10:05
- Sampling point
- LC009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-045
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.315 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Sep 23, 2025 10:15
- Sampling point
- LC011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-044
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.461 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Sep 23, 2025 10:20
- Sampling point
- LC010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-043
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.499 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 2.2 ug/l
-
- Collected
- Sep 23, 2025 10:30
- Sampling point
- LC012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-042
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0929 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.5 ug/l
-
- Collected
- Sep 23, 2025 10:45
- Sampling point
- LC007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250924-041
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 1.11 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Aug 5, 2025 14:48
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250806-001
- 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 5, 2025 14:40
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-250806-002
- 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
Routine (10).