Lead in Dayton, OH Drinking Water
Lead data for Dayton, Ohio · 150,695 residents · 49 ZIP codes
Water quality records for Dayton, Ohio 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 Dayton Tap Water
Lead has been detected in Dayton, Ohio drinking water at a maximum level of 470 ppb — 31.33x the EPA action level.
This analysis covers 150,695 residents across 49 ZIP codes in Dayton.
Dayton's overall water quality grade is F (37/100).
Is Lead in Dayton 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 |
|---|---|---|---|
| 45400 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45401 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45402 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45403 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45404 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45405 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45406 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45408 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45409 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45410 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45412 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45413 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45414 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45415 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45416 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45417 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45418 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45419 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45420 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45422 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45423 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45424 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45426 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45427 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| 45428 | 470 ppb | 15 ppb (action level) | Exceeds limit |
| ...24 more ZIP codes |
Average lead level across Dayton: 470 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 Dayton 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.