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
MS0400016 , Marydell Water Association
37 of the 72 analytes this system has been tested for have been detected at least once, across 337 samples on record.
The other 35 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 337 samples on record, detections range from October 1, 2003 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 | 123 of 123 results | Aug 16, 2007 | Oct 7, 2020 |
| Lead 1030 | Inorganic Chemical | 63 of 123 results | Aug 16, 2007 | Oct 6, 2020 |
| Barium 1010 | Inorganic Chemical | 27 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 21 of 24 results | Sep 30, 2009 | Dec 8, 2025 |
| TTHM 2950 | Organic Chemical | 21 of 23 results | Jul 7, 2004 | Dec 8, 2025 |
| Chloroform 2941 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Chromium 1020 | Inorganic Chemical | 15 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 8, 2012 | Oct 11, 2012 |
| Dichloroacetic Acid 2451 | Organic Chemical | 14 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 13 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Bromoform 2942 | Organic Chemical | 13 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Sodium 1052 | Inorganic Chemical | 12 of 12 results | Sep 24, 2019 | Feb 19, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 10 of 18 results | Jul 25, 2013 | Dec 8, 2025 |
| Fluoride 1025 | Inorganic Chemical | 9 of 30 results | May 10, 2017 | Mar 11, 2025 |
| Nickel 1036 | Inorganic Chemical | 7 of 27 results | Oct 1, 2003 | Mar 11, 2025 |
| Sulfate 1055 | Inorganic Chemical | 7 of 7 results | Oct 1, 2003 | Dec 11, 2020 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Iron 1028 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Magnesium 1031 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Manganese 1032 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Potassium 1042 | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Residue, Total, Filterable 1057 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Carbon Dioxide 1901 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Color 1905 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Iron, Field Result FEFD | Inorganic Chemical | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Calculated Sodium NACA | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| PH, Field Result PHFD | Water Quality | 3 of 3 results | Dec 11, 2020 | Dec 11, 2020 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 18 results | Jul 6, 2015 | Sep 24, 2019 |
| Xylenes, Total 2955 | Organic Chemical | 2 of 25 results | Mar 5, 2009 | May 11, 2009 |
| Dichloromethane 2964 | Organic Chemical | 2 of 25 results | Aug 12, 2004 | Aug 12, 2004 |
| Arsenic 1005 | Inorganic Chemical | 1 of 27 results | Apr 2, 2014 | Apr 2, 2014 |
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 201–210 of 337 samples, newest first — collected August 13, 2012 to October 11, 2012. The summary above covers all 337.
31 results from the 10 samples listed here: 7 detected, 24 not detected. Across the whole record it is 467 of 1,623. 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 |
|---|---|---|
|
||
| 0.5 pci/l , sample collected Oct 11, 2012 12:00, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 12:00, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.312 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 12:00, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 11, 2012 12:00, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 1 pci/l , sample collected Oct 10, 2012 14:15, 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 10, 2012 14:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.301 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:15, 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 10, 2012 14:15, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 1.4 pci/l , sample collected Oct 10, 2012 14:45, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:45, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.262 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:45, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:45, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| 0.5 pci/l , sample collected Oct 10, 2012 14:30, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:30, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.312 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:30, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Oct 1, 2012 – Dec 31, 2012 |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 14:30, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Oct 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 12, 2012 01:10, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 12, 2012 01:30, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 1 pci/l , sample collected Aug 13, 2012 13:45, 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 Aug 13, 2012 13:45, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.301 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 13:45, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 13:45, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1.4 pci/l , sample collected Aug 13, 2012 13:30, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 13:30, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.262 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 13:30, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 13:30, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 0.5 pci/l , sample collected Aug 13, 2012 14:00, sampling point TF103 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 14:00, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.312 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 14:00, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Aug 13, 2012 14:00, sampling point TF103 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 13, 2012 14:00, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
-
- Collected
- Oct 11, 2012 12:00
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 201301110236
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.312 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 10, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 121011-073
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- 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 0.301 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
-
- Collected
- Oct 10, 2012 14:45
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 121011-074
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.262 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Oct 10, 2012 14:30
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 121011-075
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.312 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2012 – Dec 31, 2012
-
- Collected
- Sep 12, 2012 01:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120913-015CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Sep 12, 2012 01:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120913-014CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Aug 13, 2012 13:45
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120814-010
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1 pci/l
- 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 0.301 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.39 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Aug 13, 2012 13:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120814-011
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.262 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.34 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Aug 13, 2012 14:00
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 120814-012
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.312 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.44 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Aug 13, 2012 14:00
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- 120814-012RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
Routine (10).