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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.

Copper, Free results

MS0140010 , Town of Lyon

77 samples have been analysed for Copper, Free at Town of Lyon.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every Copper, Free result

The table below lists 1–10 of 77 samples, newest first — collected June 15, 2022 to September 30, 2025.

10 Copper, Free results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 10 results for other analytes, which are on the full results page.

We withheld the location of 3 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 The location on record identifies a private home, and we do not publish those.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.

Copper, Free results for Town of Lyon, from 1 to 10 of 77 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Sep 30, 2025 06:08
Sampling point
LC008 Location withheld
Sample type
Routine
Lab sample
PB-251002-085
Laboratory
MSDH Lab
0.458 mg/l , sample collected Sep 30, 2025 06:08, sampling point LC008 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 06:13
Sampling point
LC002 Location withheld
Sample type
Routine
Lab sample
PB-251002-084
Laboratory
MSDH Lab
0.101 mg/l , sample collected Sep 30, 2025 06:13, sampling point LC002 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 06:21
Sampling point
TC0001 Outside Faucet
Sample type
Routine
Lab sample
PB-251002-083
Laboratory
MSDH Lab
0.354 mg/l , sample collected Sep 30, 2025 06:21, sampling point TC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 06:28
Sampling point
TC0006 Outside Faucet
Sample type
Routine
Lab sample
PB-251002-082
Laboratory
MSDH Lab
0.117 mg/l , sample collected Sep 30, 2025 06:28, sampling point TC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 06:34
Sampling point
LC009 Location withheld
Sample type
Routine
Lab sample
PB-251002-081
Laboratory
MSDH Lab
0.0781 mg/l , sample collected Sep 30, 2025 06:34, sampling point LC009 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jun 15, 2022 07:02
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-025
Laboratory
MSDH Lab
0.606 mg/l , sample collected Jun 15, 2022 07:02, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 07:04
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-024
Laboratory
MSDH Lab
0.663 mg/l , sample collected Jun 15, 2022 07:04, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-023
Laboratory
MSDH Lab
0.596 mg/l , sample collected Jun 15, 2022 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 06:58
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-022
Laboratory
MSDH Lab
0.0077 mg/l , sample collected Jun 15, 2022 06:58, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 07:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-021
Laboratory
MSDH Lab
0.852 mg/l , sample collected Jun 15, 2022 07:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).