Routine testing in Norwood, Minnesota turned up Copper — samples from the public supply came back positive, placing this contaminant on the list of substances residents here have a concrete reason to look into.

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04

Copper in Norwood Tap Water

Copper has been detected in Norwood, Minnesota drinking water at a maximum level of 1.06 ppb — below the EPA action level of 1.3 mg/L (action level).

This analysis covers 17,127 residents across 3 ZIP codes in Norwood.

Norwood's overall water quality grade is D (40/100).

Is Copper in Norwood Water Safe?

Copper was detected in Norwood 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 Norwood: 1.06 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 Norwood 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 Minnesota
• Minnesota Water Quality
• Norwood Water Quality
• Check Your ZIP Code