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Maryland Tap Water Quality

EPA water quality data for 150 community water systems serving 801,385+ people in Maryland. Click any system to see violations, lead testing results, and a safety grade.

Cities in Maryland

BaltimoreFrederickRockville
GLEN BURNIE-BROADNECK MILLERSVILLE, MD · 290,606 people · Groundwater CROFTON-ODENTON MILLERSVILLE, MD · 62,986 people · Groundwater FORT GEORGE G. MEADE FORT MEADE, MD · 62,234 people · Groundwater CITY OF WESTMINSTER WESTMINSTER, MD · 35,256 people · Surface Water CITY OF ANNAPOLIS ANNAPOLIS, MD · 35,000 people · Groundwater CITY OF CUMBERLAND CUMBERLAND, MD · 27,039 people · Surface Water BROAD CREEK MILLERSVILLE, MD · 26,033 people · Groundwater FREEDOM DISTRICT WESTMINSTER, MD · 24,867 people · Surface Water TOWN OF ELKTON ELKTON, MD · 15,625 people · Surface Water TOWN OF LA PLATA LA PLATA, MD · 11,535 people · Groundwater CITY OF FROSTBURG FROSTBURG, MD · 11,000 people · Surface Water TOWN OF MOUNT AIRY MOUNT AIRY, MD · 9,890 people · Groundwater CHESAPEAKE RANCH ESTATES LUSBY, MD · 9,500 people · Groundwater U.S. NAVAL ACADEMY ANNAPOLIS, MD · 8,700 people · Groundwater TOWN OF NORTH EAST NORTH EAST, MD · 8,600 people · Surface Water CITY OF TANEYTOWN TANEYTOWN, MD · 6,750 people · Groundwater TOWN OF HAMPSTEAD HAMPSTEAD, MD · 6,600 people · Groundwater BRYANS ROAD LA PLATA, MD · 6,260 people · Groundwater EASTERN REGION ALLEGANY DISTRIB. SYSTEM CUMBERLAND, MD · 5,703 people · Surface Water Purchased LAVALE SANITARY COMMISSION LAVALE, MD · 5,500 people · Surface Water Purchased MARYLAND AMERICAN WATER--SEVERN SYSTEM BEL AIR, MD · 5,447 people · Groundwater MIDLAND-LONACONING LONACONING, MD · 5,000 people · Surface Water TOWN OF CHESAPEAKE BEACH CHESAPEAKE BEACH, MD · 5,000 people · Groundwater WESTERN REGION ALLEGANY DISTRIB. SYSTEM CUMBERLAND, MD · 4,955 people · Surface Water Purchased TOWN OF MANCHESTER MANCHESTER, MD · 4,954 people · Groundwater TOWN OF DENTON DENTON, MD · 4,500 people · Groundwater TOWN OF PERRYVILLE PERRYVILLE, MD · 4,413 people · Surface Water PRINCE FREDERICK PRINCE FREDERICK, MD · 4,371 people · Groundwater TOWN OF INDIAN HEAD INDIAN HEAD, MD · 4,100 people · Groundwater THE PROVINCES DUNKIRK, MD · 3,991 people · Groundwater SOLOMONS PRINCE FREDERICK, MD · 3,811 people · Groundwater TOWN OF CHARLESTOWN WILLARDS, MD · 3,791 people · Groundwater ELKTON WEST NEWARK, DE · 3,500 people · Surface Water Purchased TOWN OF NORTH BEACH NORTH BEACH, MD · 3,000 people · Groundwater BEL AIR - PINTO DISTRIBUTION SYSTEM DUNKIRK, MD · 2,614 people · Surface Water Purchased TOWN OF FEDERALSBURG FEDERALSBURG, MD · 2,450 people · Groundwater WAKEFIELD VALLEY WESTMINSTER, MD · 2,436 people · GWUDI LAKE VILLAGE TOWNHOMES SEVERN, MD · 2,400 people · Groundwater HERALD HARBOR MILLERSVILLE, MD · 2,241 people · Groundwater TOWN OF WESTERNPORT WESTERNPORT, MD · 2,200 people · Surface Water TOWN OF RISING SUN ELKTON, MD · 2,200 people · Surface Water Purchased MOUNTAIN HILL WATER COMPANY NEWARK, DE · 2,154 people · Surface Water Purchased BEACHES WATER CO-OPERATIVE ST. LEONARD, MD · 2,000 people · Groundwater PERRY POINT V.A. MEDICAL CENTER PERRY POINT, MD · 2,000 people · Surface Water TOWN OF GREENSBORO GREENSBORO, MD · 1,878 people · Groundwater POTOMAC HEIGHTS INDIAN HEAD, MD · 1,800 people · Groundwater TOWN OF NEW WINDSOR NEW WINDSOR, MD · 1,732 people · Groundwater TOWN OF RIDGELY RIDGELY, MD · 1,600 people · Groundwater SPRINGFIELD HOSPITAL DISTRIBUTION SYKESVILLE, MD · 1,500 people · Surface Water Purchased SCIENTISTS CLIFFS PORT REPUBLIC, MD · 1,425 people · Groundwater CROWNSVILLE HOSPITAL CENTER MILLERSVILLE, MD · 1,348 people · Groundwater BOONES MOBILE ESTATES LOTHIAN, MD · 1,315 people · Groundwater SHERWOOD FOREST WATER COMPANY SHERWOOD FOREST, MD · 1,200 people · Groundwater CHESAPEAKE HEIGHTS (BAYSIDE FOREST) PRINCE FREDERICK, MD · 1,190 people · Groundwater SUMMIT/HIGHLANDS PRINCE FREDERICK, MD · 1,108 people · Groundwater TOWN OF UNION BRIDGE UNION BRIDGE, MD · 997 people · GWUDI PINE HILLS NEWARK, DE · 953 people · Groundwater TOWN & COUNTRY MOBILE HOME PARK NORTH EAST, MD · 950 people · Groundwater SWAN POINT LA PLATA, MD · 945 people · Groundwater HOLIDAY MOBILE ESTATES, INC. JESSUP, MD · 900 people · Groundwater STELLA MARIS TIMONIUM, MD · 873 people · Surface Water Purchased SOUTHERN REGION ALLEGANY DISTRIB. SYSTEM CUMBERLAND, MD · 865 people · Surface Water Purchased MARYLAND MANOR MOBILE HOME PARK LOTHIAN, MD · 810 people · Groundwater LYONS CREEK ESTATES LOTHIAN, MD · 750 people · Groundwater TOWN OF PRESTON PRESTON, MD · 750 people · Groundwater CLIFFTON ON THE POTOMAC LA PLATA, MD · 744 people · Groundwater PORT DEPOSIT NEWARK, DE · 725 people · Surface Water TOWN OF CHESAPEAKE CITY [FORMERLY SOUTH] CHESAPEAKE CITY, MD · 673 people · Groundwater Purchased CHARLES COUNTY GARDENS WATER WALDORF, MD · 551 people · Groundwater WAYSONS MOBILE COURT FARMINGTON HILLS, MI · 540 people · Groundwater EPPING FOREST MD · 500 people · Groundwater CRYSTAL BEACH MANOR/T&C UTILITY TIMONIUM, MD · 500 people · Groundwater TOWN OF CECILTON CECILTON, MD · 477 people · Groundwater GLEN MEADOWS RETIREMENT COMMUNITY GLEN ARM, MD · 468 people · GWUDI MISTY MEADOWS 1 / HIGHLAND HILLS M.H.P. STREET, MD · 460 people · Groundwater PATUXENT MOBILE ESTATES LOTHIAN, MD · 450 people · Groundwater GAITHER MANOR APARTMENTS SYKESVILLE, MD · 450 people · Groundwater HARBOR VIEW NEWARK, DE · 437 people · Groundwater CROSS POINT SUBDIVISION PRINCE FREDERICK, MD · 434 people · Groundwater SUNNYBROOK BALTIMORE, MD · 416 people · Groundwater ELKRIDGE ESTATES OF ROLAND PARK TYSONS, VA · 414 people · Surface Water Purchased CARPENTERS POINT WATER CO. NEWARK, DE · 400 people · Groundwater BENJAMINS VILLAGE/HOMESTEAD M.H.P. PORT DEPOSIT, MD · 400 people · Groundwater STONEY CHASE/ ROCK CREEK M.H.P.S ELKTON, MD · 396 people · Groundwater CAROLINE ACRES MOBILE HOME PARK MD · 395 people · Groundwater CAVALIER COUNTRY PRINCE FREDERICK, MD · 381 people · Groundwater KINGS MANOR - WHITE PLAINS WATER CO, INC WALDORF, MD · 372 people · Groundwater SHORES OF CALVERT PRINCE FREDERICK, MD · 361 people · Groundwater SUMMERHILL MOBILE HOME PARK GLEN ARM, MD · 350 people · Groundwater ST. LEONARD PRINCE FREDERICK, MD · 350 people · Groundwater CALVERT BEACH - DECATUR STREET WALDORF, MD · 350 people · Groundwater KENWOOD BEACH PRINCE FREDERICK, MD · 338 people · Groundwater WHISPERING PINES MOBILE HOME PARK NEW CASTLE, DE · 325 people · Groundwater CECIL WOODS M.H.P. DISTRIBUTION SYSTEM SPRINGFIELD, PA · 320 people · Groundwater Purchased BEL ALTON LA PLATA, MD · 311 people · Groundwater MIDLOTHIAN WATER COMPANY MIDLOTHIAN, MD · 300 people · Groundwater BENEDICTINE SCHOOL RIDGELY, MD · 300 people · Groundwater CEDAR MOBILE HOME PARK COLUMBIA, MD · 300 people · Groundwater PHEASANT RIDGE ESTATES MOUNT AIRY, MD · 300 people · Groundwater SHERWOOD FOREST/FOREST VIEW VILLAGE MHP ELKTON, MD · 293 people · Groundwater MARLEY RUN PRINCE FREDERICK, MD · 290 people · Groundwater AUTUMN LAKE HEALTHCARE RISING SUN, MD · 290 people · Groundwater CECIL WOODS MOBILE HOME PARK WTP NEWARK, DE · 285 people · Groundwater BAY COUNTRY ESTATES MOBILE HOME PARK RISING SUN, MD · 276 people · Groundwater GIBSON ISLAND MILLERSVILLE, MD · 275 people · Groundwater PARIS OAKS / DAYS END PRINCE FREDERICK, MD · 251 people · Groundwater WEST NOTTINGHAM ACADEMY COLORA, MD · 250 people · Groundwater CONOWINGO MOBILE HOME PARK LANCASTER, PA · 250 people · Groundwater ROSE HAVEN MILLERSVILLE, MD · 235 people · Groundwater REGENCY MANOR MOBILE HOME PARK LOTHIAN, MD · 224 people · Groundwater HILLANDALE MOBILE HOME PARK BELLE MEAD, NJ · 220 people · Groundwater FOREST GREEN COURT MOBILE HOME PARK PORT DEPOSIT, MD · 212 people · Groundwater LAKEWOOD PRINCE FREDERICK, MD · 203 people · Groundwater WESTERN SHORES WALDORF, MD · 200 people · Groundwater RED HILL WATER COMPANY, INC. WALDORF, MD · 200 people · Groundwater MARIELLEN PARK LA PLATA, MD · 184 people · Groundwater TODD VILLAGE MOBILE HOME PARK FINKSBURG, MD · 180 people · Groundwater MAPLE HILL MOBILE ESTATES PORT DEPOSIT, MD · 180 people · Groundwater OAK HILL WATER COMPANY, LLC WALDORF, MD · 180 people · Groundwater MOUNT CARMEL WOODS LA PLATA, MD · 175 people · Groundwater NEWTOWN VILLAGE LA PLATA, MD · 170 people · Groundwater BARK HILL WESTMINSTER, MD · 163 people · Groundwater CHESAPEAKE ESTATES MOBILE HOME PARK BERWYN, PA · 159 people · Groundwater WALNUT CREEK PRINCE FREDERICK, MD · 158 people · Groundwater TOWN OF HENDERSON PORT DEPOSIT, MD · 156 people · Groundwater RIO VISTA PLAZA MOBILE HOME PARK BALTIMORE, MD · 150 people · Groundwater JONESTOWN WATER SYSTEM DENTON, MD · 150 people · Groundwater WOODBINE VILLAGE MOBILE HOME PARK POTOMAC, MD · 150 people · Groundwater ROCKBROOK VILLAGE MOBILE HOME PARK ELLICOTT CITY, MD · 150 people · Groundwater DU MAR ESTATES WATER COMPANY MARBURY, MD · 150 people · Groundwater POMFRET ESTATES - UTILCO, INC. WALDORF, MD · 150 people · Groundwater GOLDEN KAY APARTMENTS ELKTON, MD · 148 people · Groundwater PINE HILL WATER COMPANY WALDORF, MD · 140 people · Groundwater PLEASANT VALLEY WESTMINSTER, MD · 139 people · Groundwater TRIMAC WATER COMPANY - FOREST PARK WALDORF, MD · 139 people · Groundwater WOODLAWN MOBILE HOME PARK - NEW PORT DEPOSIT, MD · 134 people · Groundwater BARRELVILLE MT. SAVAGE, MD · 130 people · Groundwater BEANTOWN PARK- WOODLEY ROAD LA PLATA, MD · 127 people · Groundwater CHAPEL HILL NURSING CENTER RANDALSTOWN, MD · 125 people · Groundwater POMONKEY WATER COMPANY - FORD HEIGHTS WALDORF, MD · 125 people · Groundwater HUNTING HILLS PRINCE FREDERICK, MD · 124 people · Groundwater NEWTOWN ESTATES - TIP HILL WATER CO. WALDORF, MD · 110 people · Groundwater HIGHLAND ESTATES DISTRIBUTION SYSTEM DUNKIRK, MD · 105 people · Surface Water Purchased PLEASANT VIEW NURSING HOME MOUNT AIRY, MD · 104 people · Groundwater GREEN RIDGE BOYS CAMP CASCADE, MD · 100 people · Groundwater CALVERT BEACH / FOREST TRAIL WALDORF, MD · 100 people · Groundwater DOVER BRIDGE PARK DURHAM, NC · 100 people · Groundwater ROUTE 7 DISTRIBUTION SYSTEM NEWARK, DE · 100 people · Surface Water Purchased GRANITE MOBILE HOME PARK BETHESDA, MD · 96 people · Groundwater SPRING VALLEY LA PLATA, MD · 91 people · Groundwater