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
MS0490023 , Hays Creek W/A-Minerva #2
19 of the 56 analytes this system has been tested for have been detected at least once, across 215 samples on record.
The other 37 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 215 samples on record, detections range from October 8, 2003 to November 19, 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 | 120 of 120 results | Sep 22, 2004 | Aug 19, 2024 |
| Lead 1030 | Inorganic Chemical | 54 of 120 results | Sep 22, 2004 | Aug 19, 2024 |
| TTHM 2950 | Organic Chemical | 11 of 18 results | Jul 19, 2004 | Nov 19, 2025 |
| Barium 1010 | Inorganic Chemical | 9 of 9 results | Oct 8, 2003 | Mar 17, 2025 |
| Fluoride 1025 | Inorganic Chemical | 9 of 9 results | Oct 8, 2003 | Mar 17, 2025 |
| Chloroform 2941 | Organic Chemical | 8 of 13 results | Aug 19, 2019 | Nov 19, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 15, 2011 | Jul 17, 2012 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 13 results | Aug 19, 2019 | Nov 19, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 4 of 13 results | Aug 19, 2019 | Nov 19, 2025 |
| Chromium 1020 | Inorganic Chemical | 4 of 9 results | Oct 8, 2003 | Mar 8, 2016 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 16, 2019 | Feb 24, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 3 of 19 results | Jun 16, 2010 | Sep 29, 2021 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 14 results | Aug 14, 2019 | Nov 19, 2025 |
| Bromoform 2942 | Organic Chemical | 2 of 13 results | Aug 19, 2019 | Nov 19, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 2 of 14 results | Aug 27, 2007 | Aug 14, 2019 |
| Nickel 1036 | Inorganic Chemical | 2 of 9 results | Apr 29, 2013 | May 6, 2019 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 14 results | Aug 14, 2019 | Aug 14, 2019 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 14 results | Aug 14, 2019 | Aug 14, 2019 |
| Selenium 1045 | Inorganic Chemical | 1 of 9 results | Apr 4, 2005 | Apr 4, 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 111–120 of 215 samples, newest first — collected June 29, 2010 to December 15, 2011. The summary above covers all 215.
24 results from the 10 samples listed here: 11 detected, 13 not detected. Across the whole record it is 245 of 836. 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 |
|---|---|---|
|
||
| 0.8 pci/l , sample collected Dec 15, 2011 13:10, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.22 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 13:10, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.21 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 13:10, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.22 pci/l Minimum Reporting Level , sample collected Dec 15, 2011 13:10, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| 0.1521 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.5339 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| 0.0012 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0042 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.1282 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0514 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.1685 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| 0.0008 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
|
||
| 0.0446 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
| 0.0038 mg/l , sample collected Jun 29, 2010, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2008 – Dec 31, 2010 |
-
- Collected
- Dec 15, 2011 13:10
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 111216-023
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- 0.8 pci/l
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.22 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.21 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.22 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Mar 7, 2011
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 110308-081NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
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
- Aug 30, 2010
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 100831-054NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-008PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1521 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-015PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.5339 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-014PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0042 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-013PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1282 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-012PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0514 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-011PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1685 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Jun 29, 2010
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 100630-010PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2010
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0446 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0038 mg/l
Routine (10).