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
MS0010007 , Oakland Water Works
10 samples have been analysed for Copper, Free at Oakland Water Works.
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 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
Every Copper, Free result
The 10 samples analysed for this analyte collected between September 25, 2024 and September 25, 2026 are listed below, newest first.
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 The location on record identifies a private home, and we do not publish those.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.
| Result | Analyte | Monitoring period |
|---|---|---|
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| 0.0099 mg/l , sample collected Sep 11, 2025 09:35, sampling point LC0004 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.011 mg/l , sample collected Aug 13, 2025 07:32, sampling point LC0011 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0105 mg/l , sample collected Aug 13, 2025 15:00, sampling point LC0007 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0124 mg/l , sample collected Aug 8, 2025 07:59, sampling point LC0006 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0828 mg/l , sample collected Aug 7, 2025 07:37, sampling point LC0012 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0175 mg/l , sample collected Aug 6, 2025 07:53, sampling point LC0013 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0104 mg/l , sample collected Aug 6, 2025 07:55, sampling point LC0010 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0417 mg/l , sample collected Aug 6, 2025 07:56, sampling point LC0009 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0163 mg/l , sample collected Aug 6, 2025 07:54, sampling point LC0008 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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| 0.0217 mg/l , sample collected Aug 6, 2025 07:36, sampling point LC0005 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
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- Collected
- Sep 11, 2025 09:35
- Sampling point
- LC0004 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250912-011
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0099 mg/l
-
- Collected
- Aug 13, 2025 07:32
- Sampling point
- LC0011 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-035
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.011 mg/l
-
- Collected
- Aug 13, 2025 15:00
- Sampling point
- LC0007 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250814-050
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0105 mg/l
-
- Collected
- Aug 8, 2025 07:59
- Sampling point
- LC0006 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0124 mg/l
-
- Collected
- Aug 7, 2025 07:37
- Sampling point
- LC0012 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-036
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0828 mg/l
-
- Collected
- Aug 6, 2025 07:53
- Sampling point
- LC0013 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-037
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0175 mg/l
-
- Collected
- Aug 6, 2025 07:55
- Sampling point
- LC0010 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0104 mg/l
-
- Collected
- Aug 6, 2025 07:56
- Sampling point
- LC0009 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0417 mg/l
-
- Collected
- Aug 6, 2025 07:54
- Sampling point
- LC0008 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0163 mg/l
-
- Collected
- Aug 6, 2025 07:36
- Sampling point
- LC0005 Location withheld
- Sample type
- Routine
- Lab sample
- PB-250813-030
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0217 mg/l
Routine (10).