Because Copper is associated with health effects at sustained elevated exposures, residents in Chappaqua, New York may find it useful that local water systems have returned detectable concentrations — facts that bear on long-term household water decisions.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14

Copper in Chappaqua Tap Water

Copper has been detected in Chappaqua, New York drinking water at a maximum level of 93.9 ppb — below the EPA action level of 1.3 mg/L (action level).

This analysis covers 17,514 residents across 1 ZIP code in Chappaqua.

Chappaqua's overall water quality grade is B (82/100).

Is Copper in Chappaqua Water Safe?

Copper was detected in Chappaqua water but currently falls within EPA limits. However, some health organizations argue the EPA action level may not be protective enough.

If you are concerned, a reverse osmosis or nsf 53 carbon block filter can reduce copper levels further.

Copper Levels by ZIP Code

Average copper level across Chappaqua: 93.9 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 Chappaqua Water

1. Run water for 30-60 seconds before use (flushes stagnant water)
2. Install an NSF 53 or NSF 58 certified filter
3. If pH is low, consider a whole-home acid neutralizer
4. Test first-draw morning water to check actual copper levels

Look for filters certified under NSF 53 for copper removal.

Related

• Copper — National Overview
• Copper in New York
• New York Water Quality
• Chappaqua Water Quality
• Check Your ZIP Code