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
MS0070002 , Big Creek Water Association
23 of the 57 analytes this system has been tested for have been detected at least once, across 356 samples on record.
The other 34 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 356 samples on record, detections range from November 11, 1993 to July 31, 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 | 129 of 147 results | Nov 11, 1993 | Jul 31, 2026 |
| Lead 1030 | Inorganic Chemical | 75 of 147 results | Nov 11, 1993 | Jun 22, 2022 |
| Fluoride 1025 | Inorganic Chemical | 44 of 44 results | Jun 25, 2002 | Jul 30, 2026 |
| Arsenic 1005 | Inorganic Chemical | 44 of 44 results | Jun 25, 2002 | Jun 11, 2026 |
| Barium 1010 | Inorganic Chemical | 44 of 44 results | Jun 25, 2002 | Jun 11, 2026 |
| Selenium 1045 | Inorganic Chemical | 37 of 44 results | Jun 25, 2002 | Jun 11, 2026 |
| Nickel 1036 | Inorganic Chemical | 37 of 43 results | Jun 25, 2002 | Oct 8, 2025 |
| Chromium 1020 | Inorganic Chemical | 31 of 44 results | Jun 25, 2002 | Oct 8, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 20 of 32 results | Jun 27, 2007 | Mar 26, 2025 |
| TTHM 2950 | Organic Chemical | 15 of 30 results | Jun 27, 2007 | Oct 11, 2023 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 12 of 12 results | Dec 8, 2011 | Mar 14, 2016 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 11 of 12 results | Dec 8, 2011 | Mar 14, 2016 |
| Radium-226 4020 | Radionuclide | 11 of 12 results | Dec 8, 2011 | Mar 14, 2016 |
| Nitrate 1040 | Inorganic Chemical | 9 of 43 results | May 3, 2004 | Mar 14, 2016 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 7 of 43 results | Jul 18, 2005 | Mar 14, 2016 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 20, 2019 | Jun 11, 2026 |
| Radium-228 4030 | Radionuclide | 6 of 12 results | Dec 8, 2011 | Mar 14, 2016 |
| Nitrite 1041 | Inorganic Chemical | 6 of 43 results | Jul 18, 2005 | Jan 18, 2011 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 of 7 results | Aug 13, 2008 | Jun 4, 2019 |
| Bromoform 2942 | Organic Chemical | 3 of 8 results | Aug 4, 2014 | Sep 6, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 7 results | Jun 4, 2019 | Jun 4, 2019 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 7 results | Jun 4, 2019 | Jun 4, 2019 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 8 results | Aug 4, 2014 | Aug 4, 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 181–190 of 356 samples, newest first — collected January 17, 2012 to July 18, 2012. The summary above covers all 356.
24 results from the 10 samples listed here: 16 detected, 8 not detected. Across the whole record it is 554 of 1,415. 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 Jul 18, 2012 13:30, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2012 – Sep 30, 2012 |
|
||
| 3 pci/l , sample collected Apr 18, 2012 14:30, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.6 pci/l , sample collected Apr 18, 2012 14:30, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.6 pci/l , sample collected Apr 18, 2012 14:30, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Apr 18, 2012 14:30, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 4.4 pci/l , sample collected Apr 18, 2012 13:30, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 2.5 pci/l , sample collected Apr 18, 2012 13:30, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 1.4 pci/l , sample collected Apr 18, 2012 13:30, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Apr 1, 2012 – Jun 30, 2012 |
| 1.1 pci/l , sample collected Apr 18, 2012 13:30, 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 18, 2012 14:36, 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 18, 2012 13:34, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Apr 1, 2012 – Jun 30, 2012 |
|
||
| 3 pci/l , sample collected Feb 7, 2012 12:30, sampling point TF102 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 0.6 pci/l , sample collected Feb 7, 2012 12:30, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 0.6 pci/l , sample collected Feb 7, 2012 12:30, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Feb 7, 2012 12:30, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| 4.4 pci/l , sample collected Feb 7, 2012 12:00, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| 2.5 pci/l , sample collected Feb 7, 2012 12:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| 1.4 pci/l , sample collected Feb 7, 2012 12:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| 1.1 pci/l , sample collected Feb 7, 2012 12:00, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 7, 2012 12:30, sampling point TF102 | 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 Feb 7, 2012 12:00, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| 0.24 mg/l , sample collected Jan 17, 2012 03:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| 0.23 mg/l , sample collected Jan 17, 2012 03:30, 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 Jan 17, 2012 03:30, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
-
- Collected
- Jul 18, 2012 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120719-033RU
- 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 18, 2012 14:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120419-078
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 3 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.6 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.6 pci/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 18, 2012 13:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120419-077
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 4.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 2.5 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 1.4 pci/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- 1.1 pci/l
- Monitoring period
- Apr 1, 2012 – Jun 30, 2012
-
- Collected
- Apr 18, 2012 14:36
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120419-078RU
- 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 18, 2012 13:34
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120419-077RU
- 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 7, 2012 12:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120208-028
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 3 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 0.6 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 0.6 pci/l
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Feb 7, 2012 12:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120208-027
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 4.4 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- 2.5 pci/l
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- 1.4 pci/l
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- 1.1 pci/l
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Feb 7, 2012 12:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120208-028RU
- 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
- Feb 7, 2012 12:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120208-027RU
- 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 17, 2012 03:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120118-061NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- 0.24 mg/l
-
Nitrate 1040 EPA method 353.2
- Result
- 0.23 mg/l
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
Routine (10).