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
MS0100002 , Choctaw Water Assn
12 of the 26 analytes this system has been tested for have been detected at least once, across 212 samples on record.
The other 14 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 212 samples on record, detections range from December 7, 1993 to September 16, 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 | 125 of 189 results | Dec 7, 1993 | Sep 16, 2025 |
| Lead 1030 | Inorganic Chemical | 115 of 189 results | Dec 7, 1993 | Sep 16, 2025 |
| TTHM 2950 | Organic Chemical | 11 of 11 results | May 12, 2004 | Mar 10, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 10 results | Jun 5, 2007 | Mar 10, 2025 |
| Bromoform 2942 | Organic Chemical | 5 of 7 results | Jun 23, 2008 | May 15, 2019 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 7 results | Jun 23, 2008 | May 15, 2019 |
| Bromodichloromethane 2943 | Organic Chemical | 2 of 7 results | Jun 23, 2011 | May 15, 2019 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 5 results | Jun 23, 2011 | Jul 16, 2014 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Aug 7, 2017 | Aug 7, 2017 |
| Barium 1010 | Inorganic Chemical | 1 of 1 result | Sep 8, 2003 | Sep 8, 2003 |
| Nickel 1036 | Inorganic Chemical | 1 of 1 result | Sep 8, 2003 | Sep 8, 2003 |
| Beryllium, Total 1075 | Inorganic Chemical | 1 of 1 result | Sep 8, 2003 | Sep 8, 2003 |
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 11–20 of 212 samples, newest first — collected June 23, 2022 to March 10, 2025. The summary above covers all 212.
14 results from the 10 samples listed here: 11 detected, 3 not detected. Across the whole record it is 276 of 465. 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 4 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 |
|---|---|---|
|
||
| 1.12 ug/l , sample collected Mar 10, 2025 15:10, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 4.92 ug/l , sample collected Mar 10, 2025 03:10, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 5, 2024 13:05, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2024 – Dec 31, 2024 |
|
||
| 1.09 ug/l , sample collected Mar 5, 2024 13:05, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2024 – Dec 31, 2024 |
|
||
| 7.66 ug/l , sample collected Mar 22, 2023 13:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Dec 31, 2023 |
|
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| 2.48 ug/l , sample collected Mar 22, 2023 13:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Dec 31, 2023 |
|
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| 0.136 mg/l , sample collected Jun 27, 2022 16:35, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.9 ug/l , sample collected Jun 27, 2022 16:35, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
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| 0.253 mg/l , sample collected Jun 23, 2022 06:00, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| 0.9 ug/l , sample collected Jun 23, 2022 06:00, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
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| 0.0191 mg/l , sample collected Jun 23, 2022 09:30, sampling point LC0015 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2022 09:30, sampling point LC0015 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
|
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| 0.0055 mg/l , sample collected Jun 23, 2022 05:50, sampling point LC0019 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 23, 2022 05:50, sampling point LC0019 | Lead 1030 EPA method 200.8 | Jan 1, 2020 – Dec 31, 2022 |
-
- Collected
- Mar 10, 2025 15:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-250311-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 1.12 ug/l
-
- Collected
- Mar 10, 2025 03:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-250311-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
TTHM 2950 EPA method 524.2
- Result
- 4.92 ug/l
-
- Collected
- Mar 5, 2024 13:05
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-240306-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Mar 5, 2024 13:05
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-240306-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
TTHM 2950 EPA method 524.2
- Result
- 1.09 ug/l
-
- Collected
- Mar 22, 2023 13:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230323-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 7.66 ug/l
-
- Collected
- Mar 22, 2023 13:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230323-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 2.48 ug/l
-
- Collected
- Jun 27, 2022 16:35
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220628-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.136 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.9 ug/l
-
- Collected
- Jun 23, 2022 06:00
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220628-006
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.253 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.9 ug/l
-
- Collected
- Jun 23, 2022 09:30
- Sampling point
- LC0015 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220628-005
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0191 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 23, 2022 05:50
- Sampling point
- LC0019 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220628-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2020 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0055 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).