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 151–160 of 172 samples, newest first — collected May 2, 2005 to July 23, 2007. The summary above covers all 172.
27 results from the 10 samples listed here: 6 detected, 21 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 0.1 mg/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.043 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Oct 2, 2006, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Oct 2, 2006, sampling point MRT000 | TTHM 2950 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 17, 2006, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 17, 2006, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 17, 2006, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| 0.011037 mg/l , sample collected Apr 18, 2006, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| 0.003075 mg/l , sample collected Apr 18, 2006, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| 0.72173 mg/l , sample collected Apr 18, 2006, sampling point TF101 | Fluoride 1025 EPA method 380-75WE | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2005 – Dec 31, 2007 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2006, sampling point TF101 | Uranium-238 4009 | Not recorded |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 17, 2006, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
|
||
| 0.011 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Nov 28, 2005, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2005 – Dec 31, 2005 |
|
||
| 14.9 ug/l , sample collected Nov 28, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2005 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 10, 2005, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2005 – Dec 31, 2005 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 10, 2005, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2005 – Dec 31, 2005 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 10, 2005, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2005 – Dec 31, 2005 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected May 2, 2005, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2005 – Dec 31, 2007 |
-
- Collected
- Jul 23, 2007
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 070724-009NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 2, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061003-007HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.043 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Oct 2, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 061003-006TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
TTHM 2950
- Result
- Not detected below 4 ug/l Minimum Reporting Level
-
- Collected
- Aug 17, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060818-047NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2006
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Apr 18, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060419-054IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Barium 1010 EPA method 200.8
- Result
- 0.011037 mg/l
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Chromium 1020 EPA method 200.8
- Result
- 0.003075 mg/l
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Fluoride 1025 EPA method 380-75WE
- Result
- 0.72173 mg/l
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0002 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
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, 2005 – Dec 31, 2007
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Uranium-238 4009
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
- Collected
- Apr 17, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060418-125CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
- Collected
- Nov 28, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051129-006HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2005
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.011 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Nov 28, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051129-006TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2005
-
TTHM 2950 EPA method 524.2
- Result
- 14.9 ug/l
-
- Collected
- Oct 10, 2005
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 051011-023NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2005
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- May 2, 2005
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 050503-002CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
Routine (10).