Copper in Ann Arbor, MI Drinking Water
Copper data for Ann Arbor, Michigan · 168,550 residents · 8 ZIP codes
Over the past reporting period, water systems in Ann Arbor, Michigan have recorded Copper at detectable concentrations in EPA compliance samples.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Copper in Ann Arbor Tap Water
Copper has been detected in Ann Arbor, Michigan drinking water at a maximum level of 4 ppb — below the EPA action level of 1.3 mg/L (action level).
This analysis covers 168,550 residents across 8 ZIP codes in Ann Arbor.
Ann Arbor's overall water quality grade is C (62/100).
Is Copper in Ann Arbor Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or nsf 53 carbon block filter certified under NSF 53 and testing your water independently.
Copper Levels by ZIP Code
| ZIP Code | Copper Level | EPA Limit | Status |
|---|---|---|---|
| 48103 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48104 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48105 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48106 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48107 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48108 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48109 | 4 ppm | 1.3 mg/L (action level) | OK |
| 48113 | 4 ppm | 1.3 mg/L (action level) | OK |
Average copper level across Ann Arbor: 4 ppb
Health Effects of Copper
- Nausea, vomiting, and diarrhea (short-term, high levels)
- Liver and kidney damage (long-term)
- Particularly dangerous for people with Wilson's disease
- Infants are more sensitive than adults
Health risk severity: Moderate. Governed by the Lead and Copper Rule.
How Copper Gets Into Drinking Water
- Corrosion of copper household plumbing
- Acidic (low pH) water accelerates copper leaching
- New copper pipes leach more than aged ones
- Mining and industrial discharge (rare for tap water)
What to Do About Copper in Ann Arbor Water
- Run water for 30-60 seconds before use (flushes stagnant water)
- Install an NSF 53 or NSF 58 certified filter
- If pH is low, consider a whole-home acid neutralizer
- Test first-draw morning water to check actual copper levels
Look for filters certified under NSF 53 for copper removal.