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 241–250 of 252 samples, newest first — collected December 30, 1993 to May 26, 1994. The summary above covers all 252.
20 results from the 10 samples listed here: 2 detected, 18 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 |
|---|---|---|
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected May 26, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected May 26, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected May 26, 1994, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected May 26, 1994, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
|
||
| Not detected below 0.02 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Copper, Free 1022 | Not recorded |
| Not detected below 0.001 mg/l Method Detection Limit , sample collected Dec 30, 1993, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- May 26, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940527-076L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- May 26, 1994
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940527-075L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- Not detected below 0.02 mg/l Method Detection Limit
-
Lead 1030
- Result
- 0.001 mg/l
-
- Collected
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-010L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-009L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-008L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-007L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-006L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-005L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-004L
- 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
- Dec 30, 1993
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 940103-003L
- 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
Routine (10).