Water Health Check Report

Cincinnati, OH

Cincinnati Public Water System · Surface water source

64

Fair

1 above EPA limit
2 above EWG guideline

Score methodology →
EPA · OH3102612UCMR5 PFAS data included750,200 people servedLast updated May 2026
EPA UCMR5 · May 2026EPA SDWIS · December 2025

Fair — with 3 concerns

Cincinnati Public Water System has 1 contaminant above EPA legal limits and 2 above EWG health guidelines.

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Lead—source matters

Lead in tap water comes from household plumbing, not the source water or treatment plant. Cincinnati water leaves the treatment plant lead-free. Risk depends on your building's internal plumbing—highest in homes built before 1986, when lead solder was common. A NSF/ANSI 53 certified pitcher or under-sink filter removes lead at point of use.

Contaminants tested

27 total · 2 above EWG guideline
ContaminantLevelStatus
5.2 ppt
Above EPA limit
5.2 ppt
Above guideline
Lead

CAS 7439-92-1

1.9 ppb
Above guideline
3.9 ppt
Within limits
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
Lithium

CAS 7439-93-2

ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
ND
Not detected
LegendWithin limitsAbove EWG guidelineAbove EPA limitNot detectedSource: EPA SDWIS · UCMR5 · EWG Health Guidelines

Filter recommendation

3 contaminants above guidelines. Here's what removes them.

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Water wellness · Drawn Health

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Data sources

EPA UCMR5 (PFAS + lithium)·May 2026·One-time programme 2023–2025
EPA SDWIS compliance data·December 2025·Annual reporting cycle

Status flags compare detected levels against both EPA legal limits and EWG health-based guidelines—which are stricter and science-derived, independent of political feasibility.