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 101–110 of 144 samples, newest first — collected August 15, 2000 to June 4, 2007. The summary above covers all 144.
20 results from the 10 samples listed here: 12 detected, 8 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 1.53 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 4, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.2 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 4, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 2.73 ug/l , sample collected Jun 4, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.006 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 4, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2007 – Dec 31, 2007 |
|
||
| 0.0016 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 0.0022 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 0.006 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 0.0139 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 0.0346 mg/l , sample collected Sep 21, 2004, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 21, 2004, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2003 – Dec 31, 2005 |
|
||
| 2.85 ug/l , sample collected May 10, 2004, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.01 mg/l Minimum Reporting Level , sample collected May 10, 2004, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 0.005 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Copper, Free 1022 | Not recorded |
| 0.001 mg/l , sample collected Aug 15, 2000, sampling point DS000 | Lead 1030 | Not recorded |
-
- Collected
- Jun 4, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070605-019TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 1.53 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.2 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.73 ug/l
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
- Collected
- Jun 4, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070605-010HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.006 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-163PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0016 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-162PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0022 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-161PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-160PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0139 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 21, 2004
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 040922-164PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2003 – Dec 31, 2005
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0346 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- May 10, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040511-029TH
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.85 ug/l
-
- Collected
- May 10, 2004
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 040511-028HA
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 0.01 mg/l Minimum Reporting Level
-
- Collected
- Aug 15, 2000
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 000816-041L
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022
- Result
- 0.005 mg/l
-
Lead 1030
- Result
- 0.001 mg/l
Routine (10).