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
MS0130019 , Golden Triangle W/A #2
13 of the 13 analytes this system has been tested for have been detected at least once, across 144 samples on record.
The other 0 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 144 samples on record, detections range from August 9, 1993 to September 26, 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 | 82 of 105 results | Aug 9, 1993 | Sep 26, 2025 |
| Lead 1030 | Inorganic Chemical | 27 of 105 results | Aug 9, 1993 | Sep 26, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 11 of 20 results | Jun 4, 2007 | Feb 5, 2025 |
| TTHM 2950 | Organic Chemical | 8 of 19 results | May 10, 2004 | Feb 5, 2025 |
| Dichloroacetic Acid 2451 | Organic Chemical | 6 of 15 results | Jun 23, 2008 | Nov 18, 2020 |
| Chloroform 2941 | Organic Chemical | 4 of 15 results | Jun 4, 2007 | Jul 29, 2015 |
| Bromodichloromethane 2943 | Organic Chemical | 4 of 15 results | Jun 4, 2007 | Jul 29, 2015 |
| Monochloroacetic Acid 2450 | Organic Chemical | 3 of 15 results | Jul 29, 2015 | Nov 18, 2020 |
| Bromoform 2942 | Organic Chemical | 3 of 15 results | Jun 23, 2008 | Jul 29, 2015 |
| Dibromochloromethane 2944 | Organic Chemical | 3 of 15 results | Jun 23, 2008 | Jul 29, 2015 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 15 results | Jun 23, 2008 | Jun 29, 2009 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 15 results | Nov 18, 2020 | Nov 18, 2020 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 15 results | Nov 18, 2020 | Nov 18, 2020 |
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 21–30 of 144 samples, newest first — collected May 20, 2021 to June 20, 2022. The summary above covers all 144.
20 results from the 10 samples listed here: 9 detected, 11 not detected. Across the whole record it is 155 of 384. 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 4 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 |
|---|---|---|
|
||
| 0.0008 mg/l , sample collected Jun 20, 2022 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2022 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 0.0008 mg/l , sample collected Jun 19, 2022 21:25, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 19, 2022 21:25, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 0.0006 mg/l , sample collected Jun 19, 2022 00:30, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 19, 2022 00:30, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 0.0006 mg/l , sample collected Jun 19, 2022 06:03, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 19, 2022 06:03, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 0.0018 mg/l , sample collected May 20, 2021 08:09, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 08:09, sampling point LC0004 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0005 mg/l , sample collected May 20, 2021 07:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 07:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0009 mg/l , sample collected May 20, 2021 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0008 mg/l , sample collected May 20, 2021 06:00, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 06:00, sampling point LC0008 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 20, 2021 08:15, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 08:15, sampling point LC0007 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
|
||
| 0.0046 mg/l , sample collected May 20, 2021 06:00, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2021 06:00, sampling point LC0006 | Lead 1030 EPA method 200.8 | Jan 1, 2021 – Jun 30, 2021 |
-
- Collected
- Jun 20, 2022 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220621-028
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 19, 2022 21:25
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-220621-027
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 19, 2022 00:30
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220621-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Jun 19, 2022 06:03
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-220621-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 08:09
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210521-019
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0018 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 07:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-210521-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0005 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-210521-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0009 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 06:00
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210521-016
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0008 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 08:15
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210521-015
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- May 20, 2021 06:00
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-210521-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2021 – Jun 30, 2021
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0046 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).