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 331–340 of 356 samples, newest first — collected November 11, 1993 to April 19, 1994. The summary above covers all 356.
20 results from the 10 samples listed here: 9 detected, 11 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 |
|---|---|---|
|
||
| 0.15 mg/l , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.084 mg/l , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.101 mg/l , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.107 mg/l , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.23 mg/l , sample collected Apr 19, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 19, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.114 mg/l , sample collected Nov 12, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 12, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.343 mg/l , sample collected Nov 12, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.002 mg/l , sample collected Nov 12, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Nov 11, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 11, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| 0.273 mg/l , sample collected Nov 11, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Nov 11, 1993, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-147L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.15 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-146L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.084 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-145L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.101 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-144L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.107 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-143L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Apr 19, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940420-142L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.23 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Nov 12, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931112-057L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.114 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Nov 12, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931112-049L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.343 mg/l
-
Lead 1030
- Result
- 0.002 mg/l
-
- Collected
- Nov 11, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931112-060L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
-
- Collected
- Nov 11, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 931112-059L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.273 mg/l
-
Lead 1030
- Result
- Not detected below 0.001 mg/l Method Detection Limit
Routine (10).