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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

MS0660002 , McHenry Utility Assn, Inc

21 of the 54 analytes this system has been tested for have been detected at least once, across 173 samples on record.

The other 33 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 173 samples on record, detections range from October 27, 2003 to February 11, 2026. 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 McHenry Utility Assn, Inc, 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 60 of 60 results Aug 23, 2007 Aug 10, 2023
Lead 1030 Inorganic Chemical 34 of 60 results Aug 23, 2007 Aug 9, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 20 results Aug 16, 2004 Feb 11, 2026
TTHM 2950 Organic Chemical 16 of 21 results Aug 16, 2004 Feb 11, 2026
Barium 1010 Inorganic Chemical 15 of 15 results Oct 27, 2003 Mar 25, 2025
Fluoride 1025 Inorganic Chemical 15 of 15 results Oct 27, 2003 Mar 25, 2025
Chromium 1020 Inorganic Chemical 10 of 15 results Oct 27, 2003 May 15, 2019
Chloroform 2941 Organic Chemical 9 of 13 results Jun 20, 2011 Feb 11, 2026
Dichloroacetic Acid 2451 Organic Chemical 8 of 12 results Jun 20, 2011 Feb 11, 2026
Bromodichloromethane 2943 Organic Chemical 6 of 13 results Jun 20, 2011 Jun 27, 2024
Trichloroacetic Acid 2452 Organic Chemical 5 of 12 results Jun 20, 2011 Jun 27, 2024
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 27, 2003 Mar 29, 2004
Dibromochloromethane 2944 Organic Chemical 2 of 13 results May 15, 2019 Mar 5, 2024
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 19, 2019 Dec 13, 2023
Monobromoacetic Acid 2453 Organic Chemical 2 of 12 results Jun 20, 2011 Oct 22, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 31 results Mar 13, 2023 Mar 13, 2023
Nitrate 1040 Inorganic Chemical 1 of 31 results Mar 13, 2023 Mar 13, 2023
Monochloroacetic Acid 2450 Organic Chemical 1 of 12 results Aug 15, 2017 Aug 15, 2017
Mercury 1035 Inorganic Chemical 1 of 15 results Dec 19, 2016 Dec 19, 2016
Nickel 1036 Inorganic Chemical 1 of 15 results May 22, 2013 May 22, 2013
Cadmium 1015 Inorganic Chemical 1 of 15 results Oct 27, 2003 Oct 27, 2003

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 173 samples, newest first — collected August 9, 2023 to August 21, 2023. The summary above covers all 173.

19 results from the 10 samples listed here: 12 detected, 7 not detected. Across the whole record it is 211 of 812. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for McHenry Utility Assn, Inc, every result from 21 to 30 of 173 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
Aug 21, 2023 12:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230822-010
Laboratory
MSDH Lab
7.59 ug/l , sample collected Aug 21, 2023 12:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Aug 10, 2023 09:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-064
Laboratory
MSDH Lab
0.0174 mg/l , sample collected Aug 10, 2023 09:30, sampling point DS000 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 Aug 10, 2023 09:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 10, 2023 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-063
Laboratory
MSDH Lab
0.0684 mg/l , sample collected Aug 10, 2023 07:15, sampling point DS000 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 Aug 10, 2023 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 13:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-066
Laboratory
MSDH Lab
0.0756 mg/l , sample collected Aug 9, 2023 13:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 9, 2023 13:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-065
Laboratory
MSDH Lab
0.0072 mg/l , sample collected Aug 9, 2023 07:00, sampling point DS000 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 Aug 9, 2023 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-062
Laboratory
MSDH Lab
0.0697 mg/l , sample collected Aug 9, 2023 06:00, sampling point DS000 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 Aug 9, 2023 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-061
Laboratory
MSDH Lab
0.024 mg/l , sample collected Aug 9, 2023 06:00, sampling point DS000 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 Aug 9, 2023 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-060
Laboratory
MSDH Lab
0.0826 mg/l , sample collected Aug 9, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
5.7 ug/l , sample collected Aug 9, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-059
Laboratory
MSDH Lab
0.0048 mg/l , sample collected Aug 9, 2023 07:30, sampling point DS000 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 Aug 9, 2023 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230811-058
Laboratory
MSDH Lab
0.0212 mg/l , sample collected Aug 9, 2023 06:00, sampling point DS000 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 Aug 9, 2023 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).