Official PFAS Records

Ohio PFAS Watchlist

Official EPA UCMR 5 PFAS monitoring records for public water systems in Ohio. 136 water systems with qualifying official records.

Source retrieved: May 26, 2026 · EPA UCMR 5

Monitoring results are not compliance determinations. Missing records do not establish absence of PFAS. Methodology

Ohio PFAS dataset — for journalists & researchers

Full state-level detection data with downloadable CSV, methodology, and citation formats.

View Ohio PFAS data →

136

Systems with records

616

Total records

616

Official detections

Water System	PWSID	Analytes in records	Records	Detections
Columbus Public Water System Columbus	OH2504412	PFPeAPFBSPFHxAPFOAPFHpA+1	13	13 detected	View
Cincinnati Public Water System Cincinnati	OH3102612	PFBAPFOSPFBS	6	6 detected	View
City of Toledo Toledo	OH4801411	PFBA	1	1 detected	View
Akron City Pws Akron	OH7700011	PFBAPFOA	2	2 detected	View
Montgomery County Water Services 1 Pws	OH5701315	PFBSPFHxSPFPeAPFHxAPFOS	11	11 detected	View
Del-co Water Company, Inc.	OH2101412	PFPeAPFBAPFBSPFHxAPFOA	17	17 detected	View
Dayton Public Water System Dayton	OH5703512	PFHxAPFHxSPFOSPFPeAPFBS	17	17 detected	View
Clermont Public Water System	OH1302212	PFOSPFBSPFPeA	4	4 detected	View
Youngstown City Pws Youngstown	OH5002303	PFOSPFHxS	6	6 detected	View
Butler Co. Water District 2 Pws	OH0900303	PFBSPFHxS	3	3 detected	View
Aqua Ohio - Massillon Pws	OH7604512	PFPeAPFHxA	2	2 detected	View
Montgomery County Water Services 2 Pws	OH5701503	PFOSPFHxSPFPeAPFBSPFHxA	8	8 detected	View
Rural Lorain Co. Water a	OH4701803	PFBAPFHxA	3	3 detected	View
Lima City	OH0200811	PFPeAPFHxAPFBA	6	6 detected	View
Hamilton Public Water System Hamilton	OH0904012	PFOAPFBSPFHxS	4	4 detected	View
Aqua Ohio - Struthers	OH5001611	PFBA	1	1 detected	View
Middletown City Pws	OH0901712	PFOS	1	1 detected	View
Newark City Pws	OH4502314	PFBA	1	1 detected	View
Warren City Pws	OH7803811	PFBA	1	1 detected	View
Medina Co/northwest Pws	OH5201903	PFBA	1	1 detected	View
Fairfield City Pws	OH0900715	PFPeAPFHxAPFBAHFPO-DA	5	5 detected	View
Southwest Regional Water District	OH0903912	PFBS	1	1 detected	View
Portsmouth City	OH7300111	PFBSPFOA	2	2 detected	View
Western Water Company	OH8300512	PFOS	4	4 detected	View
Westerville City Pws	OH2503411	PFBA	1	1 detected	View
Reynoldsburg City Pws	OH2503203	PFBA	2	2 detected	View
Ross County Water Co Inc	OH7101412	PFPeA	1	1 detected	View
Hecla Water Association	OH4401612	PFBSPFPeAPFBAHFPO-DAPFOA	6	6 detected	View
Bowling Green City	OH8700311	PFHxAPFPeAPFBSPFBA	6	6 detected	View
Zanesville Pws	OH6002712	PFBS6:2FTS	2	2 detected	View
Wooster City Pws	OH8504512	PFBAPFOAPFPeAPFHxAPFBS+1	6	6 detected	View
Medina City Pws	OH5200514	PFBA	1	1 detected	View
Tate-monroe Water Association Pws	OH1301312	PFOA	1	1 detected	View
Oxford City Pws	OH0902312	PFBS	2	2 detected	View
Alliance City Pws	OH7600011	PFBA	1	1 detected	View
Niles City Pws	OH7802403	PFOSPFHxSPFBA	5	5 detected	View
Chillicothe City Pws	OH7100112	PFBS	1	1 detected	View
Muskingum County Water - Se	OH6000412	PFBS	1	1 detected	View
Gallia Co Rural Water Association	OH2700012	PFOA	2	2 detected	View
Lebanon City	OH8304112	PFPeA	2	2 detected	View
Ottawa County Regional Water District	OH6205011	PFPeAPFHxAPFBA	4	4 detected	View
Piqua City Pws	OH5501211	PFPeA	1	1 detected	View
Oregon City	OH4800911	PFHxA	2	2 detected	View
Springboro Pws	OH8301412	PFOAPFHxSPFOSPFBS	7	7 detected	View
Marietta City Pws	OH8400412	PFOAPFBSPFOS	6	6 detected	View
Norwalk City Pws	OH3901111	PFBA	3	3 detected	View
Franklin Public Water System	OH8300412	PFOS	1	1 detected	View
Wright-patterson Afb Area a Pws	OH2903412	PFOSPFBSPFHxSPFHpAPFHxA+2	24	24 detected	View
Defiance City	OH2000111	PFPeAPFHxAPFBA	10	10 detected	View
Ravenna City Pws	OH6703211	PFBA	1	1 detected	View
Pike Water, Inc.-plant Pws	OH6602412	PFPeA	2	2 detected	View
Indian Hill City Pws	OH3101112	PFPeAPFHxAPFBSPFOSPFBA	8	8 detected	View
Bexley City Pws	OH2500103	PFOAPFBAPFHxAPFPeAPFBS	15	15 detected	View
Girard City	OH7801103	PFOSPFBAPFHxSPFBSPFHxA	10	10 detected	View
Jefferson Co W and S District - M	OH4101103	PFBS	1	1 detected	View
Scioto Co. Regional Water District #1	OH7300212	PFPeA	1	1 detected	View
Bellefontaine City Pws	OH4600112	PFBS	2	2 detected	View
Greenville City Pws	OH1900714	PFHxSPFOS	2	2 detected	View
Warren Co. Socialville Pws	OH8304203	PFPeA	1	1 detected	View
Trenton City Pws	OH0903012	PFBSPFHxS	2	2 detected	View
Loveland City Pws	OH1300812	PFOSPFBS	3	3 detected	View
East Liverpool City	OH1500811	PFBS	2	2 detected	View
Wilmington City Pws	OH1401211	PFBAPFHpAPFPeAPFHxAPFOS+1	6	6 detected	View
Celina City	OH5400011	PFBA	1	1 detected	View
Urbana City Pws	OH1101212	6:2FTS	1	1 detected	View
Ironton	OH4400711	PFOAHFPO-DAPFPeAPFBS	8	8 detected	View
Northwest Regional Water District	OH7300003	PFPeA	1	1 detected	View
Wright-patterson Afb Area B Pws	OH2903312	PFOAPFHxSPFBSPFOSPFBA	18	18 detected	View
City of Cambridge	OH3000111	PFOAPFBA	5	5 detected	View
Galion City	OH1700211	PFBA	2	2 detected	View
Trumbull Co. - Southeast Pws	OH7803203	PFOSPFBAPFHxAPFPeAPFOA+1	9	9 detected	View
City of Jackson	OH4000111	PFBA	2	2 detected	View
Northwestern W and Sd - Oregon Wtln 200	OH8704203	PFHxA	1	1 detected	View
Oakwood City Pws	OH5701915	PFBSPFPeAPFHxSPFHxA	13	13 detected	View
Reading City Pws	OH3101812	PFPeA	2	2 detected	View
Bellbrook Water Works	OH2901112	PFBSPFHxSPFOS	3	3 detected	View
Shelby City	OH7004511	PFBA	1	1 detected	View
Louisville City Pws	OH7603012	PFPeA	1	1 detected	View
Trotwood City Pws	OH5702403	PFBS	1	1 detected	View
Guernsey Co. Water Dept.	OH3000603	PFOA	3	3 detected	View
Napoleon City	OH3500811	PFHxAPFBSPFPeA	4	4 detected	View
Oberlin Water Department	OH4700911	PFHxAPFBAPFPeAPFBS	13	13 detected	View
Sanitary District #4	OH2501003	PFOAPFBAPFPeAPFHpAPFBS+1	16	16 detected	View
Hubbard City Pws	OH7801415	PFBA	1	1 detected	View
Trumbull Co. - Bazetta/champion	OH7804303	PFBA	2	2 detected	View
Bellevue City	OH3900011	PFBA	1	1 detected	View
Aqua Ohio - Lawrence County	OH4400803	PFOA	1	1 detected	View
Canfield City Pws	OH5000503	PFOAPFHxSPFOSPFBA	11	11 detected	View
Wauseon City Pws	OH2600111	PFPeAPFHxAPFBSPFBAPFNA	13	13 detected	View
Warren Comm W and S Assn 2	OH8402703	PFBSPFOA	3	3 detected	View
Gallipolis Pws	OH2700112	PFOA	1	1 detected	View
Wellston City Pws	OH4001912	PFHxAPFPeAPFBA	10	10 detected	View
Union City Pws	OH5702512	PFBSPFHxAPFPeAPFOAPFHpA	6	6 detected	View
Martins Ferry Public Water System	OH0701212	PFPeAPFOA	2	2 detected	View
Milford City Pws	OH1301012	PFHxSPFOSPFHxAPFPeAPFBS+2	12	12 detected	View
Leading Creek Conservancy District	OH5300012	PFOA	2	2 detected	View
Mount Orab Village Pws	OH0801011	PFBA	2	2 detected	View
Maysville Regional Water	OH6001411	PFOA	1	1 detected	View
Waterville City	OH4801503	PFPeAPFBAPFHxA	7	7 detected	View
Barnesville	OH0700011	PFOA	4	4 detected	View
Scioto Water Inc.-sugar Camp	OH7300903	PFHxS	1	1 detected	View
Belpre City Pws	OH8400012	PFPeAPFBA	2	2 detected	View
Trumbull Co. - Howland Twp Pws	OH7806303	PFOSPFOAPFHxAPFBAPFPeA+1	12	12 detected	View
Clyde City	OH7200211	PFBA	2	2 detected	View
Newton Falls City	OH7802311	PFBSPFOAPFHxAPFPeAPFBA+2	21	21 detected	View
Brookville Municipality Pws	OH5700203	PFBS	2	2 detected	View
New Carlisle City Pws	OH1203312	PFBS	2	2 detected	View
Toronto Pws	OH4102811	PFPeAPFBS	2	2 detected	View
Northern Ohio Rural Water-south District	OH3946712	PFBA	2	2 detected	View
Whitehouse Village	OH4801612	PFBA	6	6 detected	View
St. Clairsville, City of Pws	OH0701516	PFOA	4	4 detected	View
Jefferson Regional Water Authority	OH5703012	PFHxAPFPeAPFBA	6	6 detected	View
Northwestern W and Sd - Portage	OH8704103	PFBAPFHxAPFPeA	5	5 detected	View
Waverly City Pws	OH6600912	PFNAPFPeA	3	3 detected	View
Ottawa Village	OH6900711	PFBSPFHxAPFBAPFPeA	13	13 detected	View
Bellaire Public Water System	OH0700114	PFBS	2	2 detected	View
Georgetown Village Pws	OH0800503	PFOA	1	1 detected	View
Blanchester Village Pws	OH1400111	PFBA	1	1 detected	View
South Point Village	OH4401212	PFHxSPFBS	4	4 detected	View
Bluffton Village	OH0200112	PFBSPFBAPFHxAPFPeA	11	11 detected	View
Elida Village	OH0200503	PFPeAPFHxAPFHpA	4	4 detected	View
Aqua Ohio - Masury	OH7802711	PFBA	1	1 detected	View
Yellow Springs Village Pws	OH2903012	PFOS	1	1 detected	View
Jackson/milton Metro Water District Pws	OH5054212	PFOSPFBAPFHxS	5	5 detected	View
Shadyside Public Water System	OH0701612	PFOAPFNAPFHxSPFBSPFPeA+1	9	9 detected	View
Paulding Village Pws	OH6300411	PFBA	1	1 detected	View
Delta Village	OH2600311	PFBA	1	1 detected	View
Lordstown Village Pws	OH7804403	PFBAPFOSPFHxSPFHxA	10	10 detected	View
Commercial Point Village	OH6503512	PFPeA	1	1 detected	View
North Baltimore Village	OH8701611	PFBA	1	1 detected	View
Caldwell Village Pws	OH6100011	PFOA	2	2 detected	View
Mcdonald Village Pws	OH7802003	PFHxAPFHxSPFOSPFBS	11	11 detected	View
Jefferson Co W and S District- a	OH4100803	PFBS	1	1 detected	View
Putnam Community Water Association Pws	OH8400712	PFOAPFHxS	4	4 detected	View
Bethel Village Pws	OH1300116	PFOA	2	2 detected	View
Waterford Water/sewer Association	OH8401112	PFBS	2	2 detected	View

Source: EPA UCMR 5 Occurrence Data · Methodology

All states Ohio utility directory