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
MS0090008 , Southeast Chickasaw W/A #1
20 of the 57 analytes this system has been tested for have been detected at least once, across 410 samples on record.
The other 37 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 410 samples on record, detections range from December 30, 1993 to December 8, 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 | 118 of 157 results | Dec 30, 1993 | Jun 10, 2025 |
| Lead 1030 | Inorganic Chemical | 114 of 157 results | Dec 30, 1993 | Jun 10, 2025 |
| Barium 1010 | Inorganic Chemical | 33 of 33 results | Sep 8, 2003 | Jan 13, 2025 |
| Fluoride 1025 | Inorganic Chemical | 33 of 33 results | Sep 8, 2003 | Jan 13, 2025 |
| TTHM 2950 | Organic Chemical | 22 of 32 results | May 10, 2004 | Dec 8, 2025 |
| Chromium 1020 | Inorganic Chemical | 21 of 33 results | Jan 12, 2004 | Jan 13, 2025 |
| Arsenic 1005 | Inorganic Chemical | 17 of 33 results | Feb 14, 2005 | Jan 13, 2025 |
| Selenium 1045 | Inorganic Chemical | 15 of 33 results | Sep 8, 2003 | Mar 24, 2008 |
| Nickel 1036 | Inorganic Chemical | 12 of 33 results | Jan 12, 2004 | Jan 13, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 of 32 results | Jul 9, 2007 | Jan 23, 2023 |
| Sodium 1052 | Inorganic Chemical | 8 of 8 results | Sep 18, 2019 | Oct 14, 2024 |
| Bromoform 2942 | Organic Chemical | 7 of 8 results | Jul 11, 2011 | Dec 8, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 8 results | Jul 16, 2018 | Dec 8, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 15 results | Mar 6, 2012 | Oct 2, 2012 |
| Nitrite 1041 | Inorganic Chemical | 3 of 66 results | Jan 10, 2022 | Jan 10, 2022 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 7 results | Aug 11, 2014 | Jul 8, 2019 |
| Cadmium 1015 | Inorganic Chemical | 3 of 33 results | Feb 14, 2005 | Feb 14, 2005 |
| Chloroform 2941 | Organic Chemical | 1 of 8 results | Aug 11, 2014 | Aug 11, 2014 |
| Cyanide 1024 | Inorganic Chemical | 1 of 33 results | Jun 27, 2011 | Jun 27, 2011 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 7 results | Aug 11, 2008 | Aug 11, 2008 |
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 181–190 of 410 samples, newest first — collected October 2, 2012 to April 21, 2014. The summary above covers all 410.
41 results from the 10 samples listed here: 5 detected, 36 not detected. Across the whole record it is 431 of 1,571. 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 Apr 21, 2014 03:18, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0262 mg/l , sample collected Apr 21, 2014 03:18, sampling point TF101 | Barium 1010 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0041 mg/l , sample collected Apr 21, 2014 03:18, sampling point TF101 | Chromium 1020 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.613 mg/l , sample collected Apr 21, 2014 03:18, sampling point TF101 | Fluoride 1025 EPA method 300.0 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Mercury 1035 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| 0.0016 mg/l , sample collected Apr 21, 2014 03:18, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Selenium 1045 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 21, 2014 03:18, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:40, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:40, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:40, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 12:57, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 12:57, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 12:57, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:25, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:25, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 21, 2014 01:25, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2014 – Dec 31, 2014 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 12:01, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 12:01, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 12:01, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:48, sampling point TF103 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:48, sampling point TF103 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:48, sampling point TF103 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:32, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:32, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 14, 2013 02:32, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:55, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:55, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.622 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:55, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:55, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.7 pci/l , sample collected Oct 2, 2012 12:38, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:38, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.386 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:38, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:38, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.376 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 2, 2012 12:15, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
-
- Collected
- Apr 21, 2014 03:18
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140422-018IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Barium 1010 EPA method 200.8
- Result
- 0.0262 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Chromium 1020 EPA method 200.8
- Result
- 0.0041 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Fluoride 1025 EPA method 300.0
- Result
- 0.613 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Nickel 1036 EPA method 200.8
- Result
- 0.0016 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
- Collected
- Jan 21, 2014 01:40
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 140122-052NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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 21, 2014 12:57
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140122-051NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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 21, 2014 01:25
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 140122-048NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2014 – Dec 31, 2014
-
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
- Mar 4, 2013 12:01
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 130305-104NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
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
- Jan 14, 2013 02:48
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 130115-025NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
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
- Jan 14, 2013 02:32
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 130115-023NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
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, 2012 12:55
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 201301130036
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.32 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.622 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.622 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.38 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 2, 2012 12:38
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 201301130035
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.386 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 2, 2012 12:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201301130034
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.376 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
Routine (10).