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
MS0820031 , Central Yazoo #4-Benton
23 of the 62 analytes this system has been tested for have been detected at least once, across 172 samples on record.
The other 39 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 172 samples on record, detections range from November 5, 2003 to February 9, 2026. 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 | 63 of 63 results | Aug 21, 2007 | Aug 22, 2023 |
| Lead 1030 | Inorganic Chemical | 40 of 63 results | Aug 21, 2007 | Aug 22, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 29 of 29 results | Sep 22, 2004 | Feb 9, 2026 |
| TTHM 2950 | Organic Chemical | 27 of 28 results | Sep 22, 2004 | Sep 16, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 22 of 22 results | Jun 15, 2009 | Feb 9, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 22 of 22 results | Jun 15, 2009 | Feb 9, 2026 |
| Chloroform 2941 | Organic Chemical | 21 of 21 results | Jun 15, 2009 | Sep 16, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 21 of 21 results | Jun 15, 2009 | Sep 16, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 11 of 21 results | Dec 14, 2009 | Sep 16, 2025 |
| Fluoride 1025 | Inorganic Chemical | 11 of 11 results | Nov 5, 2003 | Apr 7, 2025 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Nov 5, 2003 | Apr 7, 2025 |
| Chromium 1020 | Inorganic Chemical | 7 of 10 results | Apr 5, 2004 | Apr 7, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 7 of 22 results | Sep 14, 2009 | Aug 20, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 15, 2011 | Jul 17, 2012 |
| Nickel 1036 | Inorganic Chemical | 3 of 10 results | May 10, 2010 | Apr 7, 2025 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 18, 2019 | Mar 20, 2023 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Aug 12, 2021 | Aug 12, 2021 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Aug 12, 2021 | Aug 12, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 1 of 1 result | Aug 12, 2021 | Aug 12, 2021 |
| Color 1905 | Water Quality | 1 of 1 result | Aug 12, 2021 | Aug 12, 2021 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Aug 12, 2021 | Aug 12, 2021 |
| Selenium 1045 | Inorganic Chemical | 1 of 10 results | Apr 5, 2004 | Apr 5, 2004 |
| Sulfate 1055 | Inorganic Chemical | 1 of 3 results | Nov 5, 2003 | Nov 5, 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 21–30 of 172 samples, newest first — collected August 22, 2023 to September 12, 2023. The summary above covers all 172.
18 results from the 10 samples listed here: 12 detected, 6 not detected. Across the whole record it is 309 of 745. 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 8 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 |
|---|---|---|
|
||
| 68.9 ug/l , sample collected Sep 12, 2023 11:40, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 32 ug/l , sample collected Sep 12, 2023 11:43, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Dec 31, 2023 |
|
||
| 0.797 mg/l , sample collected Aug 22, 2023 06:15, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 06:15, sampling point LC0010 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0191 mg/l , sample collected Aug 22, 2023 07:00, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:00, sampling point LC0005 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0313 mg/l , sample collected Aug 22, 2023 07:00, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:00, sampling point LC0011 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.49 mg/l , sample collected Aug 22, 2023 04:20, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 04:20, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.118 mg/l , sample collected Aug 22, 2023 05:00, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 05:00, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
||
| 0.0268 mg/l , sample collected Aug 22, 2023 06:44, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 0.6 ug/l , sample collected Aug 22, 2023 06:44, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
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| 0.229 mg/l , sample collected Aug 22, 2023 07:00, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 22, 2023 07:00, sampling point LC0012 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
|
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| 0.355 mg/l , sample collected Aug 22, 2023 06:50, sampling point LC0030 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
| 1 ug/l , sample collected Aug 22, 2023 06:50, sampling point LC0030 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Dec 31, 2023 |
-
- Collected
- Sep 12, 2023 11:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-230913-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
TTHM 2950 EPA method 524.2
- Result
- 68.9 ug/l
-
- Collected
- Sep 12, 2023 11:43
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230913-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 32 ug/l
-
- Collected
- Aug 22, 2023 06:15
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-141
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.797 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2023 07:00
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-140
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
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
- Aug 22, 2023 07:00
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-139
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0313 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2023 04:20
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-138
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.49 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2023 05:00
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-136
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.118 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2023 06:44
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-137
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0268 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Aug 22, 2023 07:00
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-135
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.229 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 22, 2023 06:50
- Sampling point
- LC0030 Location withheld
- Sample type
- Routine
- Lab sample
- PB-230823-133
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Dec 31, 2023
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.355 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1 ug/l
Routine (10).