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 41–50 of 172 samples, newest first — collected September 15, 2020 to September 21, 2021. The summary above covers all 172.
26 results from the 10 samples listed here: 17 detected, 9 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2021 10:50, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2021 |
|
||
| 1.35 mg/l , sample collected Aug 12, 2021 11:20, sampling point WL001 | Calcium 1016 EPA method 200.7 | Not recorded |
| 5.63 mg/l , sample collected Aug 12, 2021 11:20, sampling point WL001 | Chloride 1017 EPA method 300.0 | Not recorded |
| 0.728 mg/l , sample collected Aug 12, 2021 11:20, sampling point WL001 | Fluoride 1025 EPA method 300.0 | Not recorded |
| 244 mg/l , sample collected Aug 12, 2021 11:20, sampling point WL001 | Sodium 1052 EPA method 200.7 | Not recorded |
| Not detected below 0.5 mg/l Minimum Reporting Level , sample collected Aug 12, 2021 11:20, sampling point WL001 | Sulfate 1055 EPA method 300.0 | Not recorded |
| 908 umho/cm , sample collected Aug 12, 2021 11:20, sampling point WL001 | Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B | Not recorded |
| 30 cu , sample collected Aug 12, 2021 11:20, sampling point WL001 | Color 1905 EPA method 2120B | Not recorded |
| 477 mg/l , sample collected Aug 12, 2021 11:20, sampling point WL001 | Alkalinity, Total 1927 EPA method 2320B | Not recorded |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 4, 2021 11:01, 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 May 4, 2021 11:01, 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 May 4, 2021 11:01, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2021 – Dec 31, 2021 |
|
||
| 0.0168 mg/l , sample collected Sep 24, 2020 03:17, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 24, 2020 03:17, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0445 mg/l , sample collected Sep 15, 2020 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0006 mg/l , sample collected Sep 15, 2020 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.1219 mg/l , sample collected Sep 15, 2020 08:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0012 mg/l , sample collected Sep 15, 2020 08:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.025 mg/l , sample collected Sep 15, 2020 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.5312 mg/l , sample collected Sep 15, 2020 04:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 04:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0405 mg/l , sample collected Sep 15, 2020 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| 0.0006 mg/l , sample collected Sep 15, 2020 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0397 mg/l , sample collected Sep 15, 2020 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
-
- Collected
- Sep 21, 2021 10:50
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- RU-210922-029
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2021
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 12, 2021 11:20
- Sampling point
- WL001 Well W001
- Sample type
- Routine
- Lab sample
- 7PC-210813-001
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Calcium 1016 EPA method 200.7
- Result
- 1.35 mg/l
-
Chloride 1017 EPA method 300.0
- Result
- 5.63 mg/l
-
Fluoride 1025 EPA method 300.0
- Result
- 0.728 mg/l
-
Sodium 1052 EPA method 200.7
- Result
- 244 mg/l
-
Sulfate 1055 EPA method 300.0
- Result
- Not detected below 0.5 mg/l Minimum Reporting Level
-
Conductivity @ 25 C Umhos/CM 1064 EPA method 2510B
- Result
- 908 umho/cm
-
Color 1905 EPA method 2120B
- Result
- 30 cu
-
Alkalinity, Total 1927 EPA method 2320B
- Result
- 477 mg/l
-
- Collected
- May 4, 2021 11:01
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-210504-067
- 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
- Sep 24, 2020 03:17
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200925-129PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0168 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 15, 2020 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-020PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0445 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Sep 15, 2020 08:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-019PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1219 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Sep 15, 2020 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-012PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.025 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 15, 2020 04:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-011PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.5312 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 15, 2020 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-007PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0405 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Sep 15, 2020 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200916-006PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0397 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).