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.
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 |
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 71–80 of 415 samples, newest first — collected March 30, 2020 to March 31, 2021. The summary above covers all 415.
31 results from the 10 samples listed here: 6 detected, 25 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 31, 2021 13:30, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
|
||
| 0.0571 mg/l , sample collected Mar 15, 2021 15:05, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2019 – Dec 31, 2021 |
|
||
| 33.2 mg/l , sample collected Jan 25, 2021 14:22, sampling point TF103 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 134 mg/l , sample collected Jan 25, 2021 14:08, sampling point TF102 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| 128 mg/l , sample collected Jan 25, 2021 14:00, sampling point TF101 | Sodium 1052 EPA method 200.7 | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2021 14:22, 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 Jan 25, 2021 14:22, 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 Jan 25, 2021 14:22, 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 Jan 25, 2021 14:08, 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 Jan 25, 2021 14:08, 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 Jan 25, 2021 14:08, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2021 14:00, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2021 14:00, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2021 14:00, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Apr 20, 2020 15:11, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 | Not recorded |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Arsenic 1005 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 0.0424 mg/l , sample collected Mar 30, 2020 13:00, sampling point TF103 | Barium 1010 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Cadmium 1015 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| 0.0022 mg/l , sample collected Mar 30, 2020 13:00, sampling point TF103 | Chromium 1020 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Mercury 1035 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Selenium 1045 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2020 13:00, sampling point TF103 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2019 – Dec 31, 2021 |
-
- Collected
- Mar 31, 2021 13:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-210401-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 15, 2021 15:05
- Sampling point
- TF103 Treatment PLNT T103
- Sample type
- Routine
- Lab sample
- CN-210316-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Cyanide 1024 EPA method QC10204001X
- Result
- 0.0571 mg/l
-
- Collected
- Jan 25, 2021 14:22
- Sampling point
- TF103 Treatment PLNT T103
- Sample type
- Routine
- Lab sample
- NA-210126-003
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 33.2 mg/l
-
- Collected
- Jan 25, 2021 14:08
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NA-210126-002
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 134 mg/l
-
- Collected
- Jan 25, 2021 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NA-210126-001
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Sodium 1052 EPA method 200.7
- Result
- 128 mg/l
-
- Collected
- Jan 25, 2021 14:22
- Sampling point
- TF103 Treatment PLNT T103
- Sample type
- Routine
- Lab sample
- NI-210126-008
- 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
- Jan 25, 2021 14:08
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-210126-007
- 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
- Jan 25, 2021 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-210126-006
- 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
- Apr 20, 2020 15:11
- Sampling point
- SM2 Pam Stanford 1005 CR 203
- Sample type
- Routine
- Lab sample
- 200421-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456
- Result
- Not detected below 0.006 mg/l Minimum Reporting Level
-
- Collected
- Mar 30, 2020 13:00
- Sampling point
- TF103 Treatment PLNT T103
- Sample type
- Routine
- Lab sample
- 200331-047IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Barium 1010 EPA method 200.8
- Result
- 0.0424 mg/l
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Chromium 1020 EPA method 200.8
- Result
- 0.0022 mg/l
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2019 – Dec 31, 2021
Routine (10).