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
MS0490004 , Hays Creek W/A-Mission Road
12 of the 13 analytes this system has been tested for have been detected at least once, across 86 samples on record.
The other 1 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 86 samples on record, detections range from July 19, 2004 to August 20, 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 | 66 of 66 results | Aug 5, 2008 | Aug 20, 2025 |
| Lead 1030 | Inorganic Chemical | 36 of 66 results | Aug 5, 2008 | Aug 20, 2025 |
| TTHM 2950 | Organic Chemical | 10 of 10 results | Jul 19, 2004 | Apr 30, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 10 results | Jun 13, 2007 | Apr 30, 2025 |
| Chloroform 2941 | Organic Chemical | 6 of 6 results | Jun 13, 2007 | Aug 22, 2017 |
| Bromodichloromethane 2943 | Organic Chemical | 6 of 6 results | Jun 13, 2007 | Aug 22, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 6 of 6 results | Jun 13, 2007 | Aug 22, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 5 of 5 results | Jul 8, 2008 | Aug 22, 2017 |
| Bromoform 2942 | Organic Chemical | 3 of 6 results | Jun 13, 2007 | Aug 24, 2009 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 5 results | Aug 4, 2014 | Aug 22, 2017 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Aug 22, 2017 | Aug 22, 2017 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 5 results | Aug 24, 2009 | Aug 24, 2009 |
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 1–10 of 86 samples, newest first — collected August 19, 2024 to August 20, 2025. The summary above covers all 86.
18 results from the 10 samples listed here: 16 detected, 2 not detected. Across the whole record it is 150 of 201. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 7 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.0387 mg/l , sample collected Aug 20, 2025 09:00, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 1.1 ug/l , sample collected Aug 20, 2025 09:00, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.275 mg/l , sample collected Aug 20, 2025 06:00, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 1.1 ug/l , sample collected Aug 20, 2025 06:00, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0051 mg/l , sample collected Aug 20, 2025 07:15, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 0.6 ug/l , sample collected Aug 20, 2025 07:15, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.0599 mg/l , sample collected Aug 20, 2025 08:45, sampling point LC0001 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2025 08:45, sampling point LC0001 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 0.528 mg/l , sample collected Aug 20, 2025 08:30, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
| 4 ug/l , sample collected Aug 20, 2025 08:30, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 15.1 ug/l , sample collected Apr 30, 2025 11:00, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2027 |
|
||
| 15.4 ug/l , sample collected Apr 30, 2025 11:00, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2027 |
|
||
| 0.0138 mg/l , sample collected Aug 19, 2024 07:00, sampling point LC0003 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 19, 2024 07:00, sampling point LC0003 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
|
||
| 0.718 mg/l , sample collected Aug 19, 2024 07:00, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| 12.9 ug/l , sample collected Aug 19, 2024 07:00, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
|
||
| 0.0127 mg/l , sample collected Aug 19, 2024 07:00, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
| 0.5 ug/l , sample collected Aug 19, 2024 07:00, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
-
- Collected
- Aug 20, 2025 09:00
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250821-036
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0387 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- Aug 20, 2025 06:00
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250821-035
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.275 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 1.1 ug/l
-
- Collected
- Aug 20, 2025 07:15
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250821-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0051 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.6 ug/l
-
- Collected
- Aug 20, 2025 08:45
- Sampling point
- LC0001 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250821-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0599 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 20, 2025 08:30
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250821-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.528 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 4 ug/l
-
- Collected
- Apr 30, 2025 11:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-250501-016
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2027
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 15.1 ug/l
-
- Collected
- Apr 30, 2025 11:00
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-250501-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2027
-
TTHM 2950 EPA method 524.2
- Result
- 15.4 ug/l
-
- Collected
- Aug 19, 2024 07:00
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240820-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0138 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 19, 2024 07:00
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240820-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.718 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 12.9 ug/l
-
- Collected
- Aug 19, 2024 07:00
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240820-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0127 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.5 ug/l
Routine (10).