Official PFAS Records

Maryland PFAS Watchlist

Official EPA UCMR 5 PFAS monitoring records for public water systems in Maryland. 26 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

Maryland PFAS dataset — for journalists & researchers

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

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Systems with records

484

Total records

484

Official detections

Water System	PWSID	Analytes in records	Records	Detections
Washington Suburban Sanitary Commission Bethesda	MD0150005	PFHxAPFPeA	8	8 detected	View
City of Baltimore Baltimore	MD0300002	PFPeA	1	1 detected	View
Howard County D.p.w. Distribution	MD0130002	PFPeAPFHxA	4	4 detected	View
Waldorf - Charles County Dpw Waldorf	MD0080049	PFHxAPFPeAPFBS	8	8 detected	View
New Design - Frederick County Frederick	MD0100030	PFPeA	1	1 detected	View
City of Frederick Frederick	MD0100015	PFPeA	1	1 detected	View
City of Rockville Rockville	MD0150003	PFBAPFHxAPFPeAPFBS	7	7 detected	View
City of Westminster	MD0060015	PFOAPFBSPFPeAPFHxSPFHxA+3	69	69 detected	View
City of Salisbury	MD0220004	PFOSPFHxAPFHxSPFPeAPFBS+1	11	11 detected	View
Freedom District	MD0060002	PFHxAPFPeA	4	4 detected	View
City of Aberdeen	MD0120001	PFPeAPFOAPFBSPFHpAPFHxS+3	16	16 detected	View
Town of Elkton	MD0070011	PFBSPFHpAPFOAPFBAPFHxA+3	50	50 detected	View
Maryland American Water Company	MD0120003	PFHxA6:2FTSPFOSPFOAPFBS+4	21	21 detected	View
Ocean Pines	MD0230005	PFBSPFBA	4	4 detected	View
Town of Mount Airy	MD0060007	PFOSPFHxAPFPeAPFOAPFBA+2	33	33 detected	View
Town of North East	MD0070016	PFBA	1	1 detected	View
Fort Detrick	MD0100011	PFPeA	1	1 detected	View
City of Taneytown	MD0060012	PFBSPFOAPFHxAPFPeAPFOS+1	21	21 detected	View
Town of Hampstead	MD0060003	PFBSPFPeAPFHxAPFOAPFOS+3	77	77 detected	View
Town of Thurmont	MD0100023	PFBSPFOSPFHxSPFOA	31	31 detected	View
Town of Poolesville	MD0150002	PFBAPFPeAPFBSPFOSPFOA+3	42	42 detected	View
City of Fruitland	MD0220008	PFOSPFHxS	2	2 detected	View
Town of Manchester	MD0060006	PFPeAPFHxAPFBSPFBAPFOA+1	42	42 detected	View
Town of Berlin	MD0230001	PFPeAPFHxAPFHpAPFHxS	9	9 detected	View
Town of Middletown	MD0100018	PFBAPFPeAPFHxSPFBSPFOS+3	11	11 detected	View
Boonsboro - Keedysville	MD0210002	PFPeAPFHxAPFHxSPFBSPFOA	9	9 detected	View

Source: EPA UCMR 5 Occurrence Data · Methodology

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