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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

MS0260027 , West Holmes Water Association

22 of the 57 analytes this system has been tested for have been detected at least once, across 360 samples on record.

The other 35 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 360 samples on record, detections range from February 28, 1996 to November 3, 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 West Holmes 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 152 of 215 results Sep 30, 1997 Jul 17, 2023
Lead 1030 Inorganic Chemical 96 of 215 results Feb 28, 1996 Jul 17, 2023
TTHM 2950 Organic Chemical 14 of 14 results Jun 7, 2004 Nov 3, 2025
Barium 1010 Inorganic Chemical 13 of 13 results Sep 17, 2003 Feb 5, 2024
Fluoride 1025 Inorganic Chemical 13 of 13 results Sep 17, 2003 Feb 5, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 12 results Sep 24, 2007 Nov 3, 2025
Chromium 1020 Inorganic Chemical 11 of 13 results Sep 17, 2003 Feb 5, 2024
Chloroform 2941 Organic Chemical 9 of 9 results Aug 8, 2007 Nov 3, 2025
Bromodichloromethane 2943 Organic Chemical 9 of 9 results Aug 8, 2007 Nov 3, 2025
Dichloroacetic Acid 2451 Organic Chemical 7 of 7 results Sep 24, 2007 Nov 3, 2025
Trichloroacetic Acid 2452 Organic Chemical 7 of 7 results Sep 24, 2007 Nov 3, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 13, 2011 Jul 10, 2012
Xylenes, Total 2955 Organic Chemical 3 of 32 results Apr 28, 2008 Jan 25, 2010
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 39 results Feb 10, 2025 Feb 10, 2025
Nitrate 1040 Inorganic Chemical 2 of 39 results Feb 10, 2025 Feb 10, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 4, 2025 Feb 4, 2025
Monobromoacetic Acid 2453 Organic Chemical 2 of 7 results Jul 31, 2019 Aug 25, 2020
Selenium 1045 Inorganic Chemical 2 of 13 results Mar 15, 2005 Feb 6, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Jul 31, 2019 Jul 31, 2019
Nickel 1036 Inorganic Chemical 1 of 13 results Apr 14, 2008 Apr 14, 2008
Cadmium 1015 Inorganic Chemical 1 of 13 results Mar 15, 2005 Mar 15, 2005

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 11–20 of 360 samples, newest first — collected July 17, 2023 to February 4, 2025. The summary above covers all 360.

36 results from the 10 samples listed here: 14 detected, 22 not detected. Across the whole record it is 365 of 1,527. 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 2 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 West Holmes Water Association, every result from 11 to 20 of 360 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
Feb 4, 2025 10:25
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
NA-250205-001
Laboratory
MSDH Lab
93.2 mg/l , sample collected Feb 4, 2025 10:25, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 4, 2025 11:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-250205-002
Laboratory
MSDH Lab
91.1 mg/l , sample collected Feb 4, 2025 11:00, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Apr 1, 2024 12:17
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240402-001
Laboratory
MSDH Lab
13.1 ug/l , sample collected Apr 1, 2024 12:17, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Apr 1, 2024 12:56
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240402-001
Laboratory
MSDH Lab
16.6 ug/l , sample collected Apr 1, 2024 12:56, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Feb 5, 2024 10:56
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
NI-240206-021
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:56, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:56, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:56, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 5, 2024 10:34
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-240206-020
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:34, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:34, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:34, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 5, 2024 10:46
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
IN-240206-019
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0136 mg/l , sample collected Feb 5, 2024 10:46, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0049 mg/l , sample collected Feb 5, 2024 10:46, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.152 mg/l , sample collected Feb 5, 2024 10:46, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:46, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 5, 2024 10:23
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-240206-018
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0144 mg/l , sample collected Feb 5, 2024 10:23, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0049 mg/l , sample collected Feb 5, 2024 10:23, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.178 mg/l , sample collected Feb 5, 2024 10:23, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 10:23, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jul 17, 2023 07:04
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230718-048
Laboratory
MSDH Lab
0.0559 mg/l , sample collected Jul 17, 2023 07:04, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
2.1 ug/l , sample collected Jul 17, 2023 07:04, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 06:50
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-230718-047
Laboratory
MSDH Lab
0.0075 mg/l , sample collected Jul 17, 2023 06:50, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Jul 17, 2023 06:50, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).