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
MS0050016 , Blackjack Development Assn
22 of the 57 analytes this system has been tested for have been detected at least once, across 252 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 252 samples on record, detections range from May 26, 1994 to October 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 | 78 of 107 results | May 26, 1994 | Jun 10, 2025 |
| Lead 1030 | Inorganic Chemical | 33 of 107 results | May 26, 1994 | Jun 19, 2019 |
| Barium 1010 | Inorganic Chemical | 19 of 19 results | Jan 29, 2002 | Jan 21, 2025 |
| Fluoride 1025 | Inorganic Chemical | 18 of 19 results | Jan 12, 2004 | Jan 21, 2025 |
| Nickel 1036 | Inorganic Chemical | 17 of 19 results | Jan 29, 2002 | Jan 21, 2025 |
| Chromium 1020 | Inorganic Chemical | 11 of 19 results | Jan 29, 2002 | Mar 30, 2020 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 5, 2011 | Jul 10, 2012 |
| TTHM 2950 | Organic Chemical | 9 of 20 results | Jun 25, 2007 | Oct 8, 2025 |
| Arsenic 1005 | Inorganic Chemical | 9 of 19 results | Mar 4, 2015 | Jan 21, 2025 |
| Chloroform 2941 | Organic Chemical | 7 of 16 results | Aug 4, 2014 | Oct 8, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 17, 2019 | Oct 14, 2024 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 5 of 10 results | Dec 5, 2011 | Jul 10, 2012 |
| Radium-226 4020 | Radionuclide | 5 of 10 results | Dec 5, 2011 | Jul 10, 2012 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 16 results | May 20, 2024 | Aug 5, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 3 of 22 results | Jun 25, 2007 | Jan 31, 2022 |
| Sulfate 1055 | Inorganic Chemical | 2 of 2 results | Jan 29, 2002 | Jan 12, 2004 |
| Cyanide 1024 | Inorganic Chemical | 1 of 17 results | Apr 13, 2021 | Apr 13, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 17 results | Aug 29, 2017 | Aug 29, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 17 results | Aug 29, 2017 | Aug 29, 2017 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 17 results | Aug 29, 2017 | Aug 29, 2017 |
| Cadmium 1015 | Inorganic Chemical | 1 of 19 results | Feb 14, 2005 | Feb 14, 2005 |
| Selenium 1045 | Inorganic Chemical | 1 of 19 results | Feb 14, 2005 | Feb 14, 2005 |
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 131–140 of 252 samples, newest first — collected February 13, 2012 to July 10, 2012. The summary above covers all 252.
28 results from the 10 samples listed here: 12 detected, 16 not detected. Across the whole record it is 241 of 1,024. 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 |
|---|---|---|
|
||
| 1.2 pci/l , sample collected Jul 10, 2012 15:00, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.5 pci/l , sample collected Jul 10, 2012 15:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.5 pci/l , sample collected Jul 10, 2012 15:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 15:00, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1.7 pci/l , sample collected Jul 9, 2012 14:00, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:00, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:00, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:00, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1.2 pci/l , sample collected Jul 9, 2012 14:15, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.5 pci/l , sample collected Jul 9, 2012 14:15, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.5 pci/l , sample collected Jul 9, 2012 14:15, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jul 1, 2012 – Sep 30, 2012 |
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:15, sampling point TF101 | 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 Jul 9, 2012 14:00, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 14:15, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 1.7 pci/l , sample collected Apr 16, 2012 15:40, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Apr 16, 2012 15:40, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Apr 16, 2012 15:40, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Apr 16, 2012 15:40, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 1.2 pci/l , sample collected Apr 16, 2012 15:55, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.5 pci/l , sample collected Apr 16, 2012 15:55, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.5 pci/l , sample collected Apr 16, 2012 15:55, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.33 pci/l Minimum Reporting Level , sample collected Apr 16, 2012 15:55, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 16, 2012 15:47, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 16, 2012 16:00, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 1.7 pci/l , sample collected Feb 13, 2012 15:00, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 15:00, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.332 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 15:00, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Feb 13, 2012 15:00, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
-
- Collected
- Jul 10, 2012 15:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 201211140355
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.2 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.5 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 9, 2012 14:00
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120710-096
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.32 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 9, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120710-095
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.2 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.5 pci/l
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2012 – Sep 30, 2012
-
- Collected
- Jul 9, 2012 14:00
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120710-096RU
- 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
-
- Collected
- Jul 9, 2012 14:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120710-095RU
- 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
-
- Collected
- Apr 16, 2012 15:40
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120417-072
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.32 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 16, 2012 15:55
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120417-071
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.2 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.5 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.5 pci/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.33 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 16, 2012 15:47
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120417-072RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Apr 16, 2012 16:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120417-071RU
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Feb 13, 2012 15:00
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 120214-048
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 1.7 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.332 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.32 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
Routine (10).