Exceeds EPA Limit Copper EXCEEDS EPA LIMIT

Copper in Burlingame, CA Drinking Water

Copper data for Burlingame, California · 42,794 residents · 2 ZIP codes

At elevated levels, Copper is a recognized health concern in drinking water; in Burlingame, California, it has been detected in recent samples logged through federal compliance reporting.

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 Burlingame Tap Water

Copper has been detected in Burlingame, 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 42,794 residents across 2 ZIP codes in Burlingame.

Burlingame's overall water quality grade is B (71/100).

Is Copper in Burlingame Water Safe?

Copper levels in parts of Burlingame 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
94010 5 ppm 1.3 mg/L (action level) OK
94011 5 ppm 1.3 mg/L (action level) OK

Average copper level across Burlingame: 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 Burlingame 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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