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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

MS0410033 , Old Union Water System

20 samples have been analysed for Copper, Free at Old Union Water System.

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.

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

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Every Copper, Free result

The table below lists 1–10 of 20 samples, newest first — collected September 17, 2025 to September 19, 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 10 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 The location on record identifies a private home, and we do not publish those.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 Old Union Water System, from 1 to 10 of 20 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 19, 2025 11:00
Sampling point
LC0030 Location withheld
Sample type
Routine
Lab sample
PB-250923-042
Laboratory
MSDH Lab
0.391 mg/l , sample collected Sep 19, 2025 11:00, sampling point LC0030 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 19, 2025 10:30
Sampling point
LC0021 Location withheld
Sample type
Routine
Lab sample
PB-250923-043
Laboratory
MSDH Lab
0.186 mg/l , sample collected Sep 19, 2025 10:30, sampling point LC0021 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 19, 2025 10:00
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-250923-041
Laboratory
MSDH Lab
0.0071 mg/l , sample collected Sep 19, 2025 10:00, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 12:05
Sampling point
LC0023 Location withheld
Sample type
Routine
Lab sample
PB-250918-011
Laboratory
MSDH Lab
0.321 mg/l , sample collected Sep 17, 2025 12:05, sampling point LC0023 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 08:50
Sampling point
LC0027 Location withheld
Sample type
Routine
Lab sample
PB-250918-013
Laboratory
MSDH Lab
0.524 mg/l , sample collected Sep 17, 2025 08:50, sampling point LC0027 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 12:20
Sampling point
LC0028 Location withheld
Sample type
Routine
Lab sample
PB-250918-012
Laboratory
MSDH Lab
0.0908 mg/l , sample collected Sep 17, 2025 12:20, sampling point LC0028 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 09:30
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-250918-018
Laboratory
MSDH Lab
0.0152 mg/l , sample collected Sep 17, 2025 09:30, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 12:10
Sampling point
LC0022 Location withheld
Sample type
Routine
Lab sample
PB-250918-014
Laboratory
MSDH Lab
0.0775 mg/l , sample collected Sep 17, 2025 12:10, sampling point LC0022 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 14:00
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-250918-015
Laboratory
MSDH Lab
0.0065 mg/l , sample collected Sep 17, 2025 14:00, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 17, 2025 13:45
Sampling point
LC0024 Location withheld
Sample type
Routine
Lab sample
PB-250918-016
Laboratory
MSDH Lab
0.0339 mg/l , sample collected Sep 17, 2025 13:45, sampling point LC0024 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025

Routine (10).