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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

MS0260003 , Castalian W/A

5 samples have been analysed for Copper, Free at Castalian W/A.

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 5 samples analysed for this analyte collected between September 26, 2024 and September 26, 2026 are listed below, newest first.

5 Copper, Free results from the 5 samples listed here: 5 detected, 0 not detected. Those samples also carried 5 results for other analytes, which are on the full results page.

We withheld the location of 5 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 The location on record identifies a private home, and we do not publish those.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 Castalian W/A, from the 5 samples 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 10, 2025 10:31
Sampling point
LC0012 Location withheld
Sample type
Routine
Lab sample
PB-250911-001
Laboratory
MSDH Lab
0.162 mg/l , sample collected Sep 10, 2025 10:31, sampling point LC0012 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 10, 2025 12:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-250911-003
Laboratory
MSDH Lab
0.0456 mg/l , sample collected Sep 10, 2025 12:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 10, 2025 12:35
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-250911-002
Laboratory
MSDH Lab
0.148 mg/l , sample collected Sep 10, 2025 12:35, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 10, 2025 12:55
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-250911-005
Laboratory
MSDH Lab
0.0576 mg/l , sample collected Sep 10, 2025 12:55, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025
Collected
Sep 10, 2025 13:11
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-250911-004
Laboratory
MSDH Lab
0.0791 mg/l , sample collected Sep 10, 2025 13:11, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2025 – Dec 31, 2025

Routine (5).