Exceeds EPA Limit Copper EXCEEDS EPA LIMIT

Copper in Boulder City, NV Drinking Water

Copper data for Boulder City, Nevada · 16,214 residents · 2 ZIP codes

Routine testing in Boulder City, Nevada 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.

8500 ppb
Max Level Detected
8500 ppb
Average Level
1.3 mg/L (action level)
EPA action level
Moderate
Health Risk
Reverse Osmosis or NSF 53 Carbon Block
Best Filter Method

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

Copper in Boulder City Tap Water

Copper has been detected in Boulder City, Nevada drinking water at a maximum level of 8500 ppb6.54x the EPA action level.

This analysis covers 16,214 residents across 2 ZIP codes in Boulder City.

Boulder City's overall water quality grade is A (87/100).

Is Copper in Boulder City Water Safe?

Copper levels in parts of Boulder City exceed the EPA action level of 1.3 mg/L (action level). The EPA requires water systems to take corrective action when this limit is exceeded.

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
89005 8500 ppb 1.3 mg/L (action level) Exceeds limit
89006 8500 ppb 1.3 mg/L (action level) Exceeds limit

Average copper level across Boulder City: 8500 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 Boulder City 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.

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