PFAS in Maryland Water
Based on EPA UCMR 5 testing of 50 public water systems in Maryland.
See Maryland on the national heatmap50
Systems Tested
50
With PFAS Detected
16
Above EPA Limits
32%
Exceed MCL
Most Commonly Detected PFAS in Maryland
Systems with detections · EPA UCMR 5 (2023–2025)
PFPeA 25 systems
lithium 24 systems
PFHxA 20 systems
PFBS 18 systems
PFOA 15 systems
PFBA 15 systems
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Get specific results for your neighborhood's water utility.
Water Systems in Maryland (50)
| Water System ↕ | PWSID | PFAS Detected ↕ | Above MCL ↕ | Risk |
|---|---|---|---|---|
| MARYLAND AMERICAN WATER COMPANY Groundwater | MD0120003 | 9 | 2 | High Risk |
| TOWN OF POOLESVILLE Groundwater | MD0150002 | 9 | 2 | High Risk |
| TOWN OF HAMPSTEAD Groundwater | MD0060003 | 8 | 2 | High Risk |
| CITY OF WESTMINSTER, MD GU | MD0060015 | 8 | 2 | High Risk |
| TOWN OF ELKTON Groundwater | MD0070011 | 8 | 2 | High Risk |
| TOWN OF MIDDLETOWN Groundwater | MD0100018 | 8 | 2 | High Risk |
| CITY OF ABERDEEN Surface Water | MD0120001 | 8 | 2 | High Risk |
| NEW LIFE CHRISTIAN SCHOOL Groundwater | MD1100052 | 8 | 2 | High Risk |
| TOWN OF MOUNT AIRY Groundwater | MD0060007 | 7 | 2 | High Risk |
| CITY OF TANEYTOWN Groundwater | MD0060012 | 7 | 2 | High Risk |
| CITY OF SALISBURY Groundwater | MD0220004 | 6 | 2 | High Risk |
| TOWN OF THURMONT Groundwater | MD0100023 | 4 | 2 | High Risk |
| GLENELG COUNTRY SCHOOL Groundwater | MD1130003 | 8 | 1 | High Risk |
| TOWN OF MANCHESTER Groundwater | MD0060006 | 6 | 1 | High Risk |
| BOONSBORO - KEEDYSVILLE Groundwater | MD0210002 | 5 | 1 | High Risk |
| CITY OF FRUITLAND Groundwater | MD0220008 | 2 | 1 | High Risk |
| CITY OF ROCKVILLE Surface Water | MD0150003 | 4 | 0 | Low Level |
| TOWN OF BERLIN Groundwater | MD0230001 | 4 | 0 | Low Level |
| WALDORF - CHARLES COUNTY DPW Surface Water | MD0080049 | 3 | 0 | Low Level |
| FREEDOM DISTRICT Surface Water | MD0060002 | 2 | 0 | Low Level |
| HOWARD COUNTY D.P.W. DISTRIBUTION Surface Water | MD0130002 | 2 | 0 | Low Level |
| WASHINGTON SUBURBAN SANITARY COMMISSION Surface Water | MD0150005 | 2 | 0 | Low Level |
| OCEAN PINES Groundwater | MD0230005 | 2 | 0 | Low Level |
| LAVALE SANITARY COMMISSION GU | MD0010016 | 1 | 0 | Low Level |
| BROAD CREEK Groundwater | MD0020004 | 1 | 0 | Low Level |
| CROFTON-ODENTON Groundwater | MD0020008 | 1 | 0 | Low Level |
| GLEN BURNIE-BROADNECK Groundwater | MD0020017 | 1 | 0 | Low Level |
| U.S. NAVAL ACADEMY Groundwater | MD0020042 | 1 | 0 | Low Level |
| TOWN OF CHESAPEAKE BEACH Groundwater | MD0040003 | 1 | 0 | Low Level |
| TOWN OF DENTON Groundwater | MD0050001 | 1 | 0 | Low Level |
| TOWN OF NORTH EAST Surface Water | MD0070016 | 1 | 0 | Low Level |
| NAVAL SUPPORT FACILITY, INDIAN HEAD Groundwater | MD0080058 | 1 | 0 | Low Level |
| CITY OF CAMBRIDGE Groundwater | MD0090002 | 1 | 0 | Low Level |
| FORT DETRICK Surface Water | MD0100011 | 1 | 0 | Low Level |
| CITY OF FREDERICK Surface Water | MD0100015 | 1 | 0 | Low Level |
| NEW DESIGN - FREDERICK COUNTY Surface Water | MD0100030 | 1 | 0 | Low Level |
| CITY OF BOWIE, MD Groundwater | MD0160002 | 1 | 0 | Low Level |
| TOWN OF CENTREVILLE Groundwater | MD0170001 | 1 | 0 | Low Level |
| STEVENSVILLE Groundwater | MD0170019 | 1 | 0 | Low Level |
| PATUXENT NAVAL AIR STATION (NAVFAC-WASH) Groundwater | MD0180022 | 1 | 0 | Low Level |
| TOWN OF PRINCESS ANNE Groundwater | MD0190002 | 1 | 0 | Low Level |
| EASTON UTILITIES Groundwater | MD0200003 | 1 | 0 | Low Level |
| TOWN OF HANCOCK Groundwater | MD0210012 | 1 | 0 | Low Level |
| TOWN OF OCEAN CITY Groundwater | MD0230003 | 1 | 0 | Low Level |
| CITY OF POCOMOKE CITY Groundwater | MD0230006 | 1 | 0 | Low Level |
| CITY OF BALTIMORE Surface Water | MD0300002 | 1 | 0 | Low Level |
| CHESAPEAKE COMPLEX Groundwater | MD1020003 | 1 | 0 | Low Level |
| MANOR SHOPPING CENTER Surface Water | MD1030054 | 1 | 0 | Low Level |
| MGM NATIONAL HARBOR Surface Water | MD1160049 | 1 | 0 | Low Level |
| OAKVILLE ELEMENTARY SCHOOL Groundwater | MD1180037 | 1 | 0 | Low Level |
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