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 61–70 of 215 samples, newest first — collected November 29, 2016 to September 18, 2018. The summary above covers all 215.
23 results from the 10 samples listed here: 10 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 |
|---|---|---|
|
||
| 0.0289 mg/l , sample collected Sep 18, 2018 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.0006 mg/l , sample collected Sep 18, 2018 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.0067 mg/l , sample collected Sep 18, 2018 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.0098 mg/l , sample collected Sep 18, 2018 05:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 05:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.0072 mg/l , sample collected Sep 18, 2018 08:37, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 08:37, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.1419 mg/l , sample collected Sep 18, 2018 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.018 mg/l , sample collected Sep 18, 2018 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.249 mg/l , sample collected Sep 18, 2018 07:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 18, 2018 07:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.2526 mg/l , sample collected Sep 17, 2018 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
| 0.0013 mg/l , sample collected Sep 17, 2018 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2018 09:45, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2018 09:45, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2018 09:45, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2018 – Dec 31, 2018 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 15, 2017 10:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 15, 2017 10:30, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 15, 2017 10:30, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2017 – Dec 31, 2017 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 29, 2016 13:20, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 29, 2016 13:20, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 29, 2016 13:20, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2016 – Dec 31, 2016 |
-
- Collected
- Sep 18, 2018 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-006PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0289 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Sep 18, 2018 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-005PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0067 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 18, 2018 05:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-004PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0098 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 18, 2018 08:37
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-003PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0072 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 18, 2018 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-002PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1419 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.018 mg/l
-
- Collected
- Sep 18, 2018 07:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-001PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.249 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2018 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 180919-008PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.2526 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
-
- Collected
- Mar 5, 2018 09:45
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 180306-018NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2018
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 15, 2017 10:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 170316-011NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2017 – Dec 31, 2017
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Nov 29, 2016 13:20
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 161130-003NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2016
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
Routine (10).