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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.

Every analyte ever detected for Golden Triangle W/A #2, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 31–40 of 144 samples, newest first — collected August 12, 2020 to May 20, 2021. The summary above covers all 144.

22 results from the 10 samples listed here: 14 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.

Units in this table

Lead is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

Total Haloacetic Acids (Haa5) is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 5 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.

Chemical and radiological sample results for Golden Triangle W/A #2, every result from 31 to 40 of 144 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
May 20, 2021 04:30
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-210521-013
Laboratory
MSDH Lab
0.0006 mg/l , sample collected May 20, 2021 04:30, sampling point LC0005 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 04:30, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
May 20, 2021 07:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-210521-012
Laboratory
MSDH Lab
0.0009 mg/l , sample collected May 20, 2021 07:00, sampling point LC0003 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 07:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
May 20, 2021 14:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-210521-011
Laboratory
MSDH Lab
0.0037 mg/l , sample collected May 20, 2021 14:00, sampling point LC0002 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 14:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
May 20, 2021 07:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-210521-010
Laboratory
MSDH Lab
0.185 mg/l , sample collected May 20, 2021 07:00, sampling point LC0001 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 07:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Jun 30, 2021
Collected
Jan 26, 2021 11:50
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
TH-210127-007
Laboratory
MSDH Lab
4.34 ug/l , sample collected Jan 26, 2021 11:50, sampling point SMH TTHM 2950 EPA method 524.2 Jan 1, 2021 – Dec 31, 2023
Collected
Jan 26, 2021 23:15
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
HA-210127-007
Laboratory
MSDH Lab
9.46 ug/l , sample collected Jan 26, 2021 23:15, sampling point SMH Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2021 – Dec 31, 2023
Collected
Nov 18, 2020 11:45
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
201119-005HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Nov 18, 2020 11:45, sampling point SMH Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Nov 18, 2020 11:45, sampling point SMH Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Nov 18, 2020 11:45, sampling point SMH Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.005 mg/l , sample collected Nov 18, 2020 11:45, sampling point SMH Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 18, 2020 11:45, sampling point SMH Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.014 mg/l , sample collected Nov 18, 2020 11:45, sampling point SMH Total Haloacetic Acids (Haa5) 2456 Jan 1, 2020 – Dec 31, 2020
Collected
Aug 12, 2020
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200814-020PB
Laboratory
MSDH Lab
0.0109 mg/l , sample collected Aug 12, 2020, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 12, 2020, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Aug 12, 2020 06:03
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200814-015PB
Laboratory
MSDH Lab
0.0022 mg/l , sample collected Aug 12, 2020 06:03, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 12, 2020 06:03, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Aug 12, 2020 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200814-014PB
Laboratory
MSDH Lab
0.0008 mg/l , sample collected Aug 12, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 12, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020

Routine (10).