Exceeds EPA Limit Copper EXCEEDS EPA LIMIT

Copper in Sun City, CA Drinking Water

Copper data for Sun City, California · 67,273 residents · 3 ZIP codes

SDWIS federal records include Copper detections tied to water systems serving Sun City, California.

5 ppb
Max Level Detected
5 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: 2026-04-05

Copper in Sun City Tap Water

Copper has been detected in Sun City, California drinking water at a maximum level of 5 ppb — below the EPA action level of 1.3 mg/L (action level).

This analysis covers 67,273 residents across 3 ZIP codes in Sun City.

Sun City's overall water quality grade is C (60/100).

Is Copper in Sun City Water Safe?

Copper levels in parts of Sun 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
92585 5 ppm 1.3 mg/L (action level) OK
92586 5 ppm 1.3 mg/L (action level) OK

Average copper level across Sun City: 5 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 Sun 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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