Lead in Marquette, MI Drinking Water
Lead data for Marquette, Michigan · 23,479 residents · 1 ZIP code
Water quality records for Marquette, Michigan show Lead detections on file — a finding that places it among the contaminants worth tracking for this area.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
Lead in Marquette Tap Water
Lead has been detected in Marquette, Michigan drinking water at a maximum level of 19 ppb — 1.27x the EPA action level.
This analysis covers 23,479 residents across 1 ZIP code in Marquette.
Marquette's overall water quality grade is D (46/100).
Is Lead in Marquette Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or nsf 53 carbon block filter certified under NSF 53 / NSF 58 and testing your water independently.
Lead Levels by ZIP Code
| ZIP Code | Lead Level | EPA Limit | Status |
|---|---|---|---|
| 49855 | 19 ppb | 15 ppb (action level) | Exceeds limit |
Average lead level across Marquette: 19 ppb
Health Effects of Lead
- Brain development delays and reduced IQ in children
- Behavioral problems and learning disabilities
- High blood pressure and kidney damage in adults
- Increased risk of premature birth in pregnant women
Health risk severity: High. Governed by the Lead and Copper Rule Revisions (LCRR/LCRI).
How Lead Gets Into Drinking Water
- Corrosion of lead service lines (pipes connecting water main to home)
- Lead solder in copper plumbing joints (pre-1986 homes)
- Brass fixtures and faucets manufactured before 2014
- Stagnant water that sits in lead-containing pipes overnight
What to Do About Lead in Marquette Water
- Install an NSF 53 or NSF 58 certified filter at kitchen sink
- Run cold water for 30 seconds before using for drinking or cooking
- Use cold water only for cooking and preparing formula
- Consider whole-home reverse osmosis if lead service line is present
Look for filters certified under NSF 53 / NSF 58 for lead removal.