CINCINNATI PUBLIC WATER SYSTEM
High Risk1 PFAS compound(s) exceed EPA Maximum Contaminant Levels
This utility has until 2029 to install treatment under the EPA's April 2024 PFAS rule. In the meantime, a point-of-use filter certified NSF/ANSI 58 for PFOA/PFOS provides reliable interim protection.
3
PFAS Detected
1
Above EPA Limits
57
ZIPs Served
Groundwater
Water Source
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 6.10ppt | 153% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBA Perfluorobutanoic acid | 5.20ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.10ppt | No federal limit | — | Unregulated |
ZIP Codes Served by This Utility
45001 45002 45013 45014 45030 45040 45041 45052 45069 45140 45174 45202 45203 45204 45205 45206 45207 45208 45209 45211 45212 45213 45214 45215 45216 45217 45218 45219 45220 45221 45223 45224 45225 45226 45227 45229 45230 45231 45232 45233 45236 45237 45238 45239 45240 45241 45242 45243 45244 45245 45246 45247 45248 45249 45251 45252 45255
Click any ZIP to see the full result page for that area.
About this data
Source
EPA UCMR 5 — January 2026 release
Sampling period
January 2023 – December 2025
Water system ID (PWSID)
OH3102612
Detection threshold (MRL)
~1.5–2 ppt — "Not detected" means below this floor