PFAS in Ohio Water
Based on EPA UCMR 5 testing of 204 public water systems in Ohio.
204
Systems Tested
204
With PFAS Detected
59
Above EPA Limits
29%
Exceed MCL
Most Commonly Detected PFAS in Ohio
Systems with detections · EPA UCMR 5 (2023–2025)
lithium 75 systems
PFBA 66 systems
PFPeA 55 systems
PFBS 55 systems
PFHxA 43 systems
PFOA 36 systems
Check your Ohio ZIP code
Get specific results for your neighborhood's water utility.
Water Systems in Ohio (204)
Click any row to see ZIP-level details| Water System | PWSID | PFAS Detected | Above MCL | Risk |
|---|---|---|---|---|
| WRIGHT-PATTERSON AFB AREA B PWS Groundwater | OH2903312 | 5 | 3 | High Risk |
| MILFORD CITY PWS Groundwater | OH1301012 | 7 | 2 | High Risk |
| WRIGHT-PATTERSON AFB AREA A PWS Groundwater | OH2903412 | 7 | 2 | High Risk |
| NEWTON FALLS CITY Surface Water | OH7802311 | 7 | 2 | High Risk |
| SHADYSIDE PUBLIC WATER SYSTEM Groundwater | OH0701612 | 6 | 2 | High Risk |
| TRUMBULL CO.-HOWLAND TWP PWS Surface Water | OH7806303 | 6 | 2 | High Risk |
| MONTGOMERY COUNTY WATER SERVICES 1 PWS GU | OH5701315 | 5 | 2 | High Risk |
| GRANDVIEW MEDICAL CENTER PWS GU | OH5750615 | 5 | 2 | High Risk |
| GIRARD CITY PWS Surface Water | OH7801103 | 5 | 2 | High Risk |
| CANFIELD CITY PWS Surface Water | OH5000503 | 4 | 2 | High Risk |
| DAYTON VA BLDG 410 GU | OH5750618 | 4 | 2 | High Risk |
| MCDONALD VILLAGE PWS Surface Water | OH7802003 | 4 | 2 | High Risk |
| SPRINGBORO PWS Groundwater | OH8301412 | 4 | 2 | High Risk |
| MARIETTA CITY PWS Groundwater | OH8400412 | 3 | 2 | High Risk |
| WILMINGTON CITY PWS Surface Water | OH1401211 | 6 | 1 | High Risk |
| DEL-CO WATER COMPANY, INC. Groundwater | OH2101412 | 6 | 1 | High Risk |
| SANITARY DISTRICT #4 Surface Water | OH2501003 | 6 | 1 | High Risk |
| COLUMBUS PUBLIC WATER SYSTEM Groundwater | OH2504412 | 6 | 1 | High Risk |
| TRUMBULL CO.-SOUTHEAST PWS Surface Water | OH7803203 | 6 | 1 | High Risk |
| WOOSTER CITY PWS Groundwater | OH8504512 | 6 | 1 | High Risk |
| BEXLEY CITY PWS Surface Water | OH2500103 | 5 | 1 | High Risk |
| INDIAN HILL CITY PWS Groundwater | OH3101112 | 5 | 1 | High Risk |
| HECLA WATER ASSOCIATION-PLANT PWS Surface Water | OH4401612 | 5 | 1 | High Risk |
| MONTGOMERY COUNTY WATER SERVICES 2 PWS GU | OH5701503 | 5 | 1 | High Risk |
| UNION CITY PWS Groundwater | OH5702512 | 5 | 1 | High Risk |
| DAYTON PUBLIC WATER SYSTEM GU | OH5703512 | 5 | 1 | High Risk |
| KINGS ISLAND PWS Groundwater | OH8345615 | 5 | 1 | High Risk |
| IRONTON PWS Surface Water | OH4400711 | 4 | 1 | High Risk |
| LORDSTOWN VILLAGE PWS Surface Water | OH7804403 | 4 | 1 | High Risk |
| HAMILTON PUBLIC WATER SYSTEM Groundwater | OH0904012 | 3 | 1 | High Risk |
| CLERMONT PUBLIC WATER SYSTEM Groundwater | OH1302212 | 3 | 1 | High Risk |
| BELLBROOK WATER WORKS Groundwater | OH2901112 | 3 | 1 | High Risk |
| CINCINNATI PUBLIC WATER SYSTEM Groundwater | OH3102612 | 3 | 1 | High Risk |
| JACKSON/MILTON METRO WATER DISTRICT PWS Surface Water | OH5054212 | 3 | 1 | High Risk |
| NILES CITY PWS Surface Water | OH7802403 | 3 | 1 | High Risk |
| MARTINS FERRY PUBLIC WATER SYSTEM Groundwater | OH0701212 | 2 | 1 | High Risk |
| LOVELAND CITY PWS Groundwater | OH1300812 | 2 | 1 | High Risk |
| GREENVILLE CITY PWS MX | OH1900714 | 2 | 1 | High Risk |
| GALLIA CO RURAL WATER ASSOCIATION Groundwater | OH2700012 | 2 | 1 | High Risk |
| YELLOW SPRINGS VILLAGE PWS Groundwater | OH2903012 | 2 | 1 | High Risk |
| CAMBRIDGE, CITY OF Surface Water | OH3000111 | 2 | 1 | High Risk |
| GUERNSEY CO. WATER DEPT. Surface Water | OH3000603 | 2 | 1 | High Risk |
| YOUNGSTOWN CITY PWS Surface Water | OH5002303 | 2 | 1 | High Risk |
| PORTSMOUTH PUBLIC WATER SYSTEM Surface Water | OH7300111 | 2 | 1 | High Risk |
| AKRON CITY PWS Surface Water | OH7700011 | 2 | 1 | High Risk |
| PUTNAM COMMUNITY WATER ASSOCIATION PWS Groundwater | OH8400712 | 2 | 1 | High Risk |
| WARREN COMM W AND S ASSN 2 Groundwater | OH8402703 | 2 | 1 | High Risk |
| BARNESVILLE, OH Surface Water | OH0700011 | 1 | 1 | High Risk |
| ST. CLAIRSVILLE, CITY OF PWS Surface Water | OH0701516 | 1 | 1 | High Risk |
| GEORGETOWN VILLAGE PWS Groundwater | OH0800503 | 1 | 1 | High Risk |
| MIDDLETOWN CITY PWS Groundwater | OH0901712 | 1 | 1 | High Risk |
| BETHEL VILLAGE PWS Groundwater | OH1300116 | 1 | 1 | High Risk |
| TATE-MONROE WATER ASSOCIATION PWS Groundwater | OH1301312 | 1 | 1 | High Risk |
| GALLIPOLIS PWS Groundwater | OH2700112 | 1 | 1 | High Risk |
| AQUA OHIO - LAWRENCE COUNTY Surface Water | OH4400803 | 1 | 1 | High Risk |
| LEADING CREEK CONSERVANCY DISTRICT Groundwater | OH5300012 | 1 | 1 | High Risk |
| CALDWELL VILLAGE PWS Surface Water | OH6100011 | 1 | 1 | High Risk |
| FRANKLIN PUBLIC WATER SYSTEM Groundwater | OH8300412 | 1 | 1 | High Risk |
| WESTERN WATER COMPANY Groundwater | OH8300512 | 1 | 1 | High Risk |
| BLUFFTON VILLAGE Surface Water | OH0200112 | 5 | 0 | Moderate |
| WAUSEON CITY Surface Water | OH2600111 | 5 | 0 | Moderate |
| OTTAWA VILLAGE Surface Water | OH6900711 | 5 | 0 | Moderate |
| FAIRFIELD CITY PWS Groundwater | OH0900715 | 4 | 0 | Low Level |
| WELLSTON CITY PWS Groundwater | OH4001912 | 4 | 0 | Low Level |
| OBERLIN WATER DEPARTMENT Surface Water | OH4700911 | 4 | 0 | Low Level |
| OAKWOOD CITY PWS Groundwater | OH5701915 | 4 | 0 | Low Level |
| BOWLING GREEN CITY Surface Water | OH8700311 | 4 | 0 | Low Level |
| ELIDA VILLAGE Surface Water | OH0200503 | 3 | 0 | Low Level |
| LIMA CITY Surface Water | OH0200811 | 3 | 0 | Low Level |
| DEFIANCE CITY Surface Water | OH2000111 | 3 | 0 | Low Level |
| CINCINNATI CHILDRENS HOSP IONIZATION SYS Surface Water | OH3139912 | 3 | 0 | Low Level |
| NAPOLEON CITY Surface Water | OH3500811 | 3 | 0 | Low Level |
| RURAL LORAIN CO. WATER A Groundwater | OH4701803 | 3 | 0 | Low Level |
| WATERVILLE CITY Surface Water | OH4801503 | 3 | 0 | Low Level |
| JEFFERSON REGIONAL WATER AUTHORITY Groundwater | OH5703012 | 3 | 0 | Low Level |
| OTTAWA COUNTY REGIONAL WATER DISTRICT Surface Water | OH6205011 | 3 | 0 | Low Level |
| AQUA OHIO - MASSILLON PWS Groundwater | OH7604512 | 3 | 0 | Low Level |
| NORTHWESTERN W AND SD- PORTAGE Surface Water | OH8704103 | 3 | 0 | Low Level |
| BUTLER CO. WATER DISTRICT 2 PWS Groundwater | OH0900303 | 2 | 0 | Low Level |
| TRENTON CITY PWS Groundwater | OH0903012 | 2 | 0 | Low Level |
| TORONTO PWS Surface Water | OH4102811 | 2 | 0 | Low Level |
| SOUTH POINT VILLAGE Groundwater | OH4401212 | 2 | 0 | Low Level |
| ZANESVILLE PWS Groundwater | OH6002712 | 2 | 0 | Low Level |
| COMMERCIAL POINT VILLAGE Groundwater | OH6503512 | 2 | 0 | Low Level |
| WAVERLY CITY PWS Groundwater | OH6600912 | 2 | 0 | Low Level |
| LOUISVILLE CITY PWS Groundwater | OH7603012 | 2 | 0 | Low Level |
| BELPRE CITY PWS Groundwater | OH8400012 | 2 | 0 | Low Level |
| ASHLAND CITY Groundwater | OH0300112 | 1 | 0 | Low Level |
| ANDOVER-CAMPLANDS WATER Groundwater | OH0400212 | 1 | 0 | Low Level |
| ATHENS PWS Groundwater | OH0500212 | 1 | 0 | Low Level |
| NELSONVILLE PWS Groundwater | OH0501214 | 1 | 0 | Low Level |
| NEW BREMEN VILLAGE Groundwater | OH0600512 | 1 | 0 | Low Level |
| ST MARYS CITY Groundwater | OH0600612 | 1 | 0 | Low Level |
| WAPAKONETA CITY Groundwater | OH0600712 | 1 | 0 | Low Level |
| BELLAIRE PUBLIC WATER SYSTEM MX | OH0700114 | 1 | 0 | Low Level |
| MOUNT ORAB VILLAGE PWS Surface Water | OH0801011 | 1 | 0 | Low Level |
| OXFORD CITY PWS Groundwater | OH0902312 | 1 | 0 | Low Level |
| SOUTHWEST REGIONAL WATER DISTRICT Groundwater | OH0903912 | 1 | 0 | Low Level |
| URBANA CITY PWS Groundwater | OH1101212 | 1 | 0 | Low Level |
| NEW CARLISLE CITY PWS Groundwater | OH1203312 | 1 | 0 | Low Level |
| BLANCHESTER VILLAGE PWS Surface Water | OH1400111 | 1 | 0 | Low Level |
| COLUMBIANA CITY PWS Groundwater | OH1500312 | 1 | 0 | Low Level |
| EAST LIVERPOOL CITY Surface Water | OH1500811 | 1 | 0 | Low Level |
| CRESTLINE VILLAGE Groundwater | OH1700112 | 1 | 0 | Low Level |
| GALION CITY Surface Water | OH1700211 | 1 | 0 | Low Level |
| BEREA CITY PWS Surface Water | OH1800111 | 1 | 0 | Low Level |
| CHAGRIN FALLS VILLAGE PWS Groundwater | OH1800212 | 1 | 0 | Low Level |
| UNIVERSITY HOSPITALS - MAIN CAMPUS Surface Water | OH1841113 | 1 | 0 | Low Level |
| HICKSVILLE VILLAGE Groundwater | OH2000212 | 1 | 0 | Low Level |
| DELAWARE CITY PWS MX | OH2100311 | 1 | 0 | Low Level |
| LANCASTER CITY PWS Groundwater | OH2301012 | 1 | 0 | Low Level |
| GREENFIELD TWP WATER DISTRICT Groundwater | OH2301812 | 1 | 0 | Low Level |
| FAIRFIELD COUNTY UTILITIES PWS Groundwater | OH2301912 | 1 | 0 | Low Level |
| GROVEPORT PWS Groundwater | OH2501512 | 1 | 0 | Low Level |
| AQUA OHIO - LAKE DARBY Groundwater | OH2502612 | 1 | 0 | Low Level |
| REYNOLDSBURG CITY PWS Surface Water | OH2503203 | 1 | 0 | Low Level |
| WESTERVILLE CITY PWS MX | OH2503411 | 1 | 0 | Low Level |
| JEFFERSON WATER AND SEWER DISTRICT PWS Groundwater | OH2504012 | 1 | 0 | Low Level |
| DELTA VILLAGE Surface Water | OH2600311 | 1 | 0 | Low Level |
| SWANTON VILLAGE MX | OH2601011 | 1 | 0 | Low Level |
| CHARDON CITY PWS Groundwater | OH2800412 | 1 | 0 | Low Level |
| SCRANTON WOODS Groundwater | OH2803712 | 1 | 0 | Low Level |
| BYESVILLE GU | OH3001212 | 1 | 0 | Low Level |
| READING CITY PWS Surface Water | OH3101812 | 1 | 0 | Low Level |
| WYOMING CITY PWS Groundwater | OH3102212 | 1 | 0 | Low Level |
| ADA VILLAGE Groundwater | OH3300012 | 1 | 0 | Low Level |
| KENTON CITY Groundwater | OH3300612 | 1 | 0 | Low Level |
| BELLEVUE CITY Surface Water | OH3900011 | 1 | 0 | Low Level |
| NORWALK CITY Surface Water | OH3901111 | 1 | 0 | Low Level |
| NORW - SOUTH DISTRICT Surface Water | OH3946712 | 1 | 0 | Low Level |
| JACKSON, CITY OF Surface Water | OH4000111 | 1 | 0 | Low Level |
| JEFFERSON CO W AND S DISTRICT- A Groundwater | OH4100803 | 1 | 0 | Low Level |
| JEFFERSON CO W AND S DISTRICT - M Surface Water | OH4101103 | 1 | 0 | Low Level |
| JOHNSTOWN VILLAGE PWS Groundwater | OH4501512 | 1 | 0 | Low Level |
| NEWARK CITY PWS Surface Water | OH4502314 | 1 | 0 | Low Level |
| PATASKALA CITY Groundwater | OH4502512 | 1 | 0 | Low Level |
| BELLEFONTAINE CITY PWS Groundwater | OH4600112 | 1 | 0 | Low Level |
| HONDA EAST LIBERTY WTP Groundwater | OH4643512 | 1 | 0 | Low Level |
| OREGON CITY, OH Surface Water | OH4800911 | 1 | 0 | Low Level |
| TOLEDO, CITY OF Surface Water | OH4801411 | 1 | 0 | Low Level |
| WHITEHOUSE VILLAGE Surface Water | OH4801612 | 1 | 0 | Low Level |
| LONDON CITY PWS Groundwater | OH4900712 | 1 | 0 | Low Level |
| MADISON COUNTY SSWD WATER DISTRICT 1 Groundwater | OH4901012 | 1 | 0 | Low Level |
| MID-OHIO WSD PLAIN CITY WTP Groundwater | OH4901112 | 1 | 0 | Low Level |
| AQUA OHIO - STRUTHERS Surface Water | OH5001611 | 1 | 0 | Low Level |
| AQUA OHIO - MARION MX | OH5100414 | 1 | 0 | Low Level |
| MEDINA CITY PWS Surface Water | OH5200514 | 1 | 0 | Low Level |
| MEDINA CO/NORTHWEST PWS Surface Water | OH5201903 | 1 | 0 | Low Level |
| MEDINA CO/SOUTHERN WATER DIST PWS Groundwater | OH5260712 | 1 | 0 | Low Level |
| CELINA CITY Surface Water | OH5400011 | 1 | 0 | Low Level |
| COLDWATER VILLAGE Groundwater | OH5400112 | 1 | 0 | Low Level |
| PIQUA CITY PWS Surface Water | OH5501211 | 1 | 0 | Low Level |
| BROOKVILLE MUNICIPALITY PWS GU | OH5700203 | 1 | 0 | Low Level |
| TROTWOOD CITY PWS GU | OH5702403 | 1 | 0 | Low Level |
| MT GILEAD VILLAGE PWS Groundwater | OH5900712 | 1 | 0 | Low Level |
| MUSKINGUM COUNTY WATER - SE Groundwater | OH6000412 | 1 | 0 | Low Level |
| MAYSVILLE REGIONAL WATER Surface Water | OH6001411 | 1 | 0 | Low Level |
| PAULDING VILLAGE Surface Water | OH6300411 | 1 | 0 | Low Level |
| ASHVILLE VILLAGE PWS Groundwater | OH6500012 | 1 | 0 | Low Level |
| CIRCLEVILLE CITY PWS Groundwater | OH6500412 | 1 | 0 | Low Level |
| EARNHART HILL WATER DISTRICT PWS Groundwater | OH6500812 | 1 | 0 | Low Level |
| ODRC-PICKAWAY CORRECTION PWS Groundwater | OH6501712 | 1 | 0 | Low Level |
| PIKE WATER, INC.-PLANT PWS Groundwater | OH6602412 | 1 | 0 | Low Level |
| PORTAGE COUNTY WATER RESOURCES Groundwater | OH6702812 | 1 | 0 | Low Level |
| RAVENNA CITY PWS Surface Water | OH6703211 | 1 | 0 | Low Level |
| COLUMBUS GROVE VILLAGE Groundwater | OH6900112 | 1 | 0 | Low Level |
| ONTARIO CITY Groundwater | OH7003512 | 1 | 0 | Low Level |
| SHELBY CITY Surface Water | OH7004511 | 1 | 0 | Low Level |
| GB FABRICATION Groundwater | OH7049512 | 1 | 0 | Low Level |
| CHILLICOTHE CITY PWS Groundwater | OH7100112 | 1 | 0 | Low Level |
| ROSS COUNTY WATER CO INC PWS Groundwater | OH7101412 | 1 | 0 | Low Level |
| CLYDE CITY Surface Water | OH7200211 | 1 | 0 | Low Level |
| FREMONT CITY Surface Water | OH7200311 | 1 | 0 | Low Level |
| NORTHWEST REGIONAL WATER DISTRICT Groundwater | OH7300003 | 1 | 0 | Low Level |
| SCIOTO CO. REGIONAL WATER DISTRICT #1 Groundwater | OH7300212 | 1 | 0 | Low Level |
| SCIOTO WATER, INC.-SUGAR CAMP Groundwater | OH7300903 | 1 | 0 | Low Level |
| AQUA OHIO - TIFFIN MX | OH7400614 | 1 | 0 | Low Level |
| HONDA - ANNA ENGINE PLANT Groundwater | OH7537812 | 1 | 0 | Low Level |
| ALLIANCE CITY PWS Surface Water | OH7600011 | 1 | 0 | Low Level |
| CANAL FULTON CITY PWS Groundwater | OH7600912 | 1 | 0 | Low Level |
| NORTH CANTON CITY PWS Groundwater | OH7604312 | 1 | 0 | Low Level |
| STARK COUNTY WATER DISTRICT Groundwater | OH7607303 | 1 | 0 | Low Level |
| CANTON PUBLIC WATER SYSTEM Groundwater | OH7608112 | 1 | 0 | Low Level |
| CUYAHOGA FALLS CITY PWS Groundwater | OH7701012 | 1 | 0 | Low Level |
| HUDSON CITY PWS Groundwater | OH7701612 | 1 | 0 | Low Level |
| OLD TRAIL SCHOOL Groundwater | OH7754712 | 1 | 0 | Low Level |
| MANCHESTER HIGH SCHOOL Groundwater | OH7778012 | 1 | 0 | Low Level |
| CORTLAND CITY PWS Groundwater | OH7800512 | 1 | 0 | Low Level |
| HUBBARD CITY PWS Surface Water | OH7801415 | 1 | 0 | Low Level |
| AQUA OHIO - MASURY Surface Water | OH7802711 | 1 | 0 | Low Level |
| WARREN CITY PWS Surface Water | OH7803811 | 1 | 0 | Low Level |
| TRUMBULL CO. - BAZETTA/CHAMPION Surface Water | OH7804303 | 1 | 0 | Low Level |
| MARYSVILLE CITY PWS MX | OH8000314 | 1 | 0 | Low Level |
| HONDA - BENTON RD. WTP Groundwater | OH8035512 | 1 | 0 | Low Level |
| LEBANON CITY Surface Water | OH8304112 | 1 | 0 | Low Level |
| WARREN CO. SOCIALVILLE PWS Surface Water | OH8304203 | 1 | 0 | Low Level |
| LITTLE HOCKING WATER ASSOCIATION, INC. Groundwater | OH8400212 | 1 | 0 | Low Level |
| WATERFORD WATER/SEWER ASSOCIATION Groundwater | OH8401112 | 1 | 0 | Low Level |
| ORRVILLE CITY PWS Groundwater | OH8502712 | 1 | 0 | Low Level |
| RITTMAN CITY PWS Groundwater | OH8503012 | 1 | 0 | Low Level |
| BRYAN CITY Groundwater | OH8600012 | 1 | 0 | Low Level |
| MONTPELIER VILLAGE Groundwater | OH8600912 | 1 | 0 | Low Level |
| NORTH BALTIMORE VILLAGE Surface Water | OH8701611 | 1 | 0 | Low Level |
| NORTHWESTERN W AND SD - WTLN 200 Surface Water | OH8704203 | 1 | 0 | Low Level |