Exceeds EPA Limit Copper EXCEEDS EPA LIMIT

Copper in Worthington, MN Drinking Water

Copper data for Worthington, Minnesota · 15,225 residents · 1 ZIP code

ZipCheckup's reading of Copper in Worthington, Minnesota: the highest detected level is 1910 ppb; the EPA limit is 1.3 mg/L (action level). Copper carries a moderate health-risk designation.

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

1910 ppb
Max Level Detected
1910 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: 2026-07-13

Copper in Worthington Tap Water

Copper has been detected in Worthington, Minnesota drinking water at a maximum level of 1910 ppb — 1.47x the EPA action level.

This analysis covers 15,225 residents across 1 ZIP code in Worthington.

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

Is Copper in Worthington Water Safe?

Copper levels in parts of Worthington 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
56187 1910 ppb 1.3 mg/L (action level) Exceeds limit

Average copper level across Worthington: 1910 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 Worthington 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

Home → Contaminants → Copper → Minnesota → Worthington

How to cite this page

APA ZipCheckup. (2026). Copper in Worthington, MN Drinking Water. https://zipcheckup.com/contaminants/copper/worthington-mn/
BibTeX 
@misc{zipcheckup-contaminants-copper-worthington-mn,
  author = {{ZipCheckup}},
  title  = {{Copper in Worthington, MN Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/copper/worthington-mn/}
}

Data as of July 2026.

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