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
MS0410033 , Old Union Water System
22 of the 57 analytes this system has been tested for have been detected at least once, across 412 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 412 samples on record, detections range from October 1, 2003 to February 10, 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 | 156 of 156 results | Aug 28, 2007 | Sep 19, 2025 |
| Lead 1030 | Inorganic Chemical | 66 of 156 results | Aug 28, 2007 | Sep 19, 2025 |
| Barium 1010 | Inorganic Chemical | 30 of 30 results | Oct 1, 2003 | Mar 12, 2025 |
| Fluoride 1025 | Inorganic Chemical | 23 of 30 results | Oct 1, 2003 | Mar 12, 2025 |
| Nickel 1036 | Inorganic Chemical | 12 of 30 results | Mar 1, 2004 | Mar 12, 2025 |
| Chromium 1020 | Inorganic Chemical | 11 of 30 results | Oct 1, 2003 | Apr 20, 2015 |
| Selenium 1045 | Inorganic Chemical | 10 of 30 results | Oct 1, 2003 | Feb 25, 2009 |
| Arsenic 1005 | Inorganic Chemical | 9 of 30 results | Apr 1, 2019 | Mar 12, 2025 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Sep 23, 2019 | Feb 18, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 25 results | Aug 23, 2007 | May 14, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 25 results | Sep 30, 2009 | Feb 10, 2026 |
| Xylenes, Total 2955 | Organic Chemical | 6 of 66 results | Feb 9, 2004 | Aug 25, 2014 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 20 results | Oct 6, 2020 | May 14, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 of 20 results | Aug 23, 2007 | Feb 10, 2026 |
| Bromoform 2942 | Organic Chemical | 4 of 20 results | Oct 6, 2020 | May 14, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 20 results | Oct 6, 2020 | Jan 6, 2025 |
| Sulfate 1055 | Inorganic Chemical | 4 of 6 results | Oct 1, 2003 | Mar 1, 2004 |
| Ethylbenzene 2992 | Organic Chemical | 3 of 66 results | Sep 20, 2005 | Mar 8, 2006 |
| Chloroform 2941 | Organic Chemical | 2 of 20 results | Oct 6, 2020 | Sep 9, 2024 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 66 results | Jun 21, 2022 | Jun 21, 2022 |
| Cadmium 1015 | Inorganic Chemical | 1 of 30 results | Feb 25, 2009 | Feb 25, 2009 |
| Dichloromethane 2964 | Organic Chemical | 1 of 66 results | Aug 9, 2004 | Aug 9, 2004 |
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 251–260 of 412 samples, newest first — collected December 7, 2011 to February 29, 2012. The summary above covers all 412.
28 results from the 10 samples listed here: 0 detected, 28 not detected. Across the whole record it is 376 of 2,552. 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 Feb 29, 2012 03:00, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 03:00, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 03:00, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 03:15, sampling point TF103 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 03:15, sampling point TF103 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 03:15, sampling point TF103 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 02:45, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 02:45, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 02:45, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:30, sampling point TF103 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:30, sampling point TF103 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:30, sampling point TF103 | Radium-228 4030 EPA method 904 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:30, sampling point TF103 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:00, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:00, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:00, sampling point TF102 | Radium-228 4030 EPA method 904 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 14:00, sampling point TF102 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 13:30, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 13:30, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 13:30, sampling point TF101 | Radium-228 4030 EPA method 904 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Jan 25, 2012 13:30, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 14:30, sampling point TF103 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 13:30, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 14:00, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 14:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.3 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 14:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.5 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 14:00, sampling point TF101 | Radium-228 4030 EPA method 904 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Dec 7, 2011 14:00, sampling point TF101 | Gross Alpha Particle Activity 4109 EPA method 00-02 | Oct 1, 2011 – Dec 31, 2011 |
-
- Collected
- Feb 29, 2012 03:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120301-031NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
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
- Feb 29, 2012 03:15
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120301-006NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
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
- Feb 29, 2012 02:45
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120301-005NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
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 25, 2012 14:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120126-007
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Jan 25, 2012 14:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120126-005
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.6 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Jan 25, 2012 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120126-006
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Jan 25, 2012 14:30
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 120126-007RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 25, 2012 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120126-006RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 25, 2012 14:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120126-005RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Dec 7, 2011 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 111208-003
- Laboratory
- Radiation Safety Engineering
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.3 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904
- Result
- Not detected below 0.5 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Gross Alpha Particle Activity 4109 EPA method 00-02
- Result
- Not detected below 0.4 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
Routine (10).