Copper typically enters water supplies through the corrosion of copper pipes and brass fittings within plumbing systems.
How Copper Gets Into Your Water
When water flows through pipes and plumbing containing copper and brass, it can leach copper from these materials. This primarily occurs in homes with copper pipes or brass fixtures. Service lines, which connect homes to the main water supply, can also contain copper.
Factors Influencing Copper Levels in Water
Several factors influence how much copper leaches into the water:
- Water pH: More acidic water (lower pH) is more corrosive and can dissolve copper more readily.
- Water Temperature: Higher temperatures generally increase corrosion rates.
- Water Hardness: Soft water (low mineral content) is often more corrosive than hard water.
- Stagnation: Water that sits in pipes for extended periods (e.g., overnight) can accumulate higher copper levels.
Where the Copper Comes From
| Source | Description |
|---|---|
| Copper Pipes | Copper pipes are a common plumbing material. Corrosion can release copper into the water. |
| Brass Fixtures | Brass, an alloy containing copper, is used in faucets and other fixtures. It can also contribute to copper levels. |
| Service Lines | The pipes connecting your home to the water main may contain copper. |
Practical Implications
Understanding how copper enters your water is crucial for addressing potential health concerns. Regular testing and mitigation strategies can help ensure safe drinking water.
