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
84 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.
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 84 samples, newest first — collected August 27, 2024 to September 10, 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 8 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 The location on record identifies a private home, and we do not publish those.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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 0.207 mg/l , sample collected Aug 28, 2024 12:50, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0866 mg/l , sample collected Aug 28, 2024 12:30, sampling point LC0018 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.196 mg/l , sample collected Aug 28, 2024 12:40, sampling point LC0014 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.124 mg/l , sample collected Aug 28, 2024 13:00, sampling point LC0016 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
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| 0.0849 mg/l , sample collected Aug 27, 2024 13:30, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2024 – Dec 31, 2024 |
-
- Collected
- Sep 10, 2025 10:31
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250911-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.162 mg/l
-
- Collected
- Sep 10, 2025 12:00
- Sampling point
- LC0003 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250911-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0456 mg/l
-
- Collected
- Sep 10, 2025 12:35
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250911-002
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.148 mg/l
-
- Collected
- Sep 10, 2025 12:55
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250911-005
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0576 mg/l
-
- Collected
- Sep 10, 2025 13:11
- Sampling point
- LC0015 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250911-004
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0791 mg/l
-
- Collected
- Aug 28, 2024 12:50
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240829-417
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.207 mg/l
-
- Collected
- Aug 28, 2024 12:30
- Sampling point
- LC0018 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240829-416
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0866 mg/l
-
- Collected
- Aug 28, 2024 12:40
- Sampling point
- LC0014 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240829-415
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.196 mg/l
-
- Collected
- Aug 28, 2024 13:00
- Sampling point
- LC0016 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240829-414
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.124 mg/l
-
- Collected
- Aug 27, 2024 13:30
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-240829-418
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0849 mg/l
Routine (10).