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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

MS0490001 , 51-55 Water Association

12 of the 13 analytes this system has been tested for have been detected at least once, across 52 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 52 samples on record, detections range from July 28, 2004 to September 28, 2023. 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 51-55 Water Association, 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 31 of 35 results Aug 31, 2004 Sep 28, 2023
Lead 1030 Inorganic Chemical 15 of 35 results Aug 31, 2004 Sep 28, 2023
TTHM 2950 Organic Chemical 8 of 8 results Jul 28, 2004 Oct 24, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 9 results Jun 26, 2007 Oct 24, 2022
Dibromochloromethane 2944 Organic Chemical 5 of 5 results Jun 26, 2007 Aug 24, 2017
Chloroform 2941 Organic Chemical 4 of 5 results Jun 26, 2007 Aug 24, 2017
Bromodichloromethane 2943 Organic Chemical 4 of 5 results Jun 26, 2007 Aug 24, 2017
Dichloroacetic Acid 2451 Organic Chemical 3 of 4 results Jun 30, 2011 Aug 24, 2017
Trichloroacetic Acid 2452 Organic Chemical 2 of 4 results Jul 23, 2014 Aug 24, 2017
Bromoform 2942 Organic Chemical 2 of 5 results Jun 26, 2007 Jun 18, 2009
Monochloroacetic Acid 2450 Organic Chemical 1 of 4 results Aug 24, 2017 Aug 24, 2017
Monobromoacetic Acid 2453 Organic Chemical 1 of 4 results Jul 23, 2014 Jul 23, 2014

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 52 samples, newest first — collected August 18, 2021 to May 13, 2025. The summary above covers all 52.

15 results from the 10 samples listed here: 10 detected, 5 not detected. Across the whole record it is 82 of 127. 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 6 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 51-55 Water Association, every result from 1 to 10 of 52 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 13, 2025 11:30
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-250514-001
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 13, 2025 11:30, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2025 – Dec 31, 2027
Collected
Sep 28, 2023 06:30
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230929-025
Laboratory
MSDH Lab
0.027 mg/l , sample collected Sep 28, 2023 06:30, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 06:30, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 28, 2023 05:15
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-230929-024
Laboratory
MSDH Lab
0.0298 mg/l , sample collected Sep 28, 2023 05:15, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.9 ug/l , sample collected Sep 28, 2023 05:15, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 28, 2023 07:05
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230929-023
Laboratory
MSDH Lab
0.0454 mg/l , sample collected Sep 28, 2023 07:05, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 07:05, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 28, 2023 06:45
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230929-022
Laboratory
MSDH Lab
0.102 mg/l , sample collected Sep 28, 2023 06:45, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Sep 28, 2023 06:45, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 28, 2023 04:30
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230929-021
Laboratory
MSDH Lab
0.0258 mg/l , sample collected Sep 28, 2023 04:30, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 28, 2023 04:30, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Oct 24, 2022 11:40
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-221025-001
Laboratory
MSDH Lab
3.54 ug/l , sample collected Oct 24, 2022 11:40, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2022 – Dec 31, 2024
Collected
Oct 24, 2022 11:53
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-221025-001
Laboratory
MSDH Lab
6.52 ug/l , sample collected Oct 24, 2022 11:53, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 18, 2021 13:57
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210819-012
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 18, 2021 13:57, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2019 – Dec 31, 2021
Collected
Aug 18, 2021 13:57
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-210819-012
Laboratory
MSDH Lab
2.75 ug/l , sample collected Aug 18, 2021 13:57, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2019 – Dec 31, 2021

Routine (10).