States / Maryland / Drinking Water
Drinking Water Systems in Maryland
464 community water systems serving about 5,529,590 people. 165 have a health-based violation on record since 2015, 5 of them unresolved.
SystemHealth-based violations (2015+)
TEBBSTON ON MAGOTHY · Anne Arundel County · 52 served · groundwater10 (6 unresolved)
BARRELVILLE · Allegany County · 130 served · groundwater4 (1 unresolved)
SWANN HAVEN MOBILE HOME PARK · Talbot County · 44 served · groundwater4 (1 unresolved)
WEST NOTTINGHAM ACADEMY · Cecil County · 250 served · groundwater3 (1 unresolved)
CONCORD ESTATES MOBILE HOME PARK · Frederick County · 150 served · groundwater1 (1 unresolved)
SPRINGFIELD HOSPITAL DISTRIBUTION · Carroll County · 1,500 served · purchased surface water79
TOWN OF NORTH EAST · Cecil County · 8,600 served · surface water51
TOWN OF PERRYVILLE · Cecil County · 4,413 served · surface water46
CITY OF HAVRE DE GRACE · Harford County · 14,000 served · surface water28
FREEDOM DISTRICT · Carroll County · 24,867 served · surface water26
PERRY POINT V.A. MEDICAL CENTER · Cecil County · 2,000 served · surface water26
CEDAR MOBILE HOME PARK · Caroline County · 300 served · groundwater26
LIBERTY MOBILE HOME PARK · Caroline County · 40 served · groundwater20
HOLLY COVE HARBOR MOBILE HOME PARK · Caroline County · 45 served · groundwater17
WHITE OAK MOBILE HOME PARK · Garrett County · 32 served · groundwater17
CITY OF POCOMOKE CITY · Worcester County · 4,100 served · groundwater15
CITY OF BALTIMORE · Baltimore city County · 1,600,000 served · surface water14
RELIANCE MOBILE HOME PARK · Dorchester County · 200 served · groundwater13
FORT DETRICK · Frederick County · 7,900 served · surface water12
TOWN OF ST. MICHAELS · Talbot County · 2,650 served · groundwater11
GOLDEN KAY APARTMENTS · Cecil County · 148 served · groundwater11
MEADOWBROOK COURT · Caroline County · 50 served · groundwater10
TOWN OF FRIENDSVILLE · Garrett County · 622 served · surface water9
TOWN OF CECILTON · Cecil County · 477 served · groundwater9
CHRISTMAS TREE FARM TRAILER PARK · St. Mary's County · 100 served · groundwater9
TOWN OF ELKTON · Cecil County · 15,625 served · surface water8
MIDLAND-LONACONING · Allegany County · 5,000 served · surface water8
TOWN OF WESTERNPORT · Allegany County · 2,200 served · surface water8
CLOVERHILL 3 - CONSECUTIVE TO MD0100015 · Frederick County · 888 served · purchased surface water8
MOUNT PLEASANT WATER CO., INC. · St. Mary's County · 150 served · groundwater8
DARLINGTON MOBILE HOME PARK · Harford County · 150 served · groundwater8
CITY OF WESTMINSTER · Carroll County · 35,256 served · surface water7
TOWN OF POOLESVILLE · Montgomery County · 6,005 served · groundwater under surface influence7
COUNTRY VILLAGE MOBILE HOME PARK · Wicomico County · 38 served · groundwater7
TOWN OF SHARPSBURG · Washington County · 1,360 served · surface water6
TOWN OF BETTERTON · Kent County · 481 served · groundwater6
CHAPEL HILL NURSING CENTER · Baltimore County · 125 served · groundwater6
TOWN OF SNOW HILL · Worcester County · 2,409 served · groundwater5
TOWN OF SHARPTOWN · Wicomico County · 625 served · groundwater5
GREEN MEADOWS COMPACT HOMES · Wicomico County · 86 served · groundwater5
EL RANCHO MOBILE HOME PARK · Washington County · 86 served · groundwater5
GOLDEN ACRES MOBILE HOME PARK · Talbot County · 48 served · groundwater5
FOUR SEASONS PARK INC. · Worcester County · 25 served · groundwater5
ELKTON WEST · Cecil County · 3,500 served · purchased surface water4
TOWN OF PRINCESS ANNE · Somerset County · 3,300 served · groundwater4
PORT DEPOSIT · Cecil County · 725 served · surface water4
DOVER BRIDGE PARK · Caroline County · 100 served · groundwater4
WILLIAMS MOBILE HOME PARK · Cecil County · 87 served · groundwater4
GILBERTS MOBILE HOME PARK · Frederick County · 75 served · groundwater4
MAYO CENTER AND APARTMENTS · Anne Arundel County · 60 served · groundwater4
CLAIBORNE · Talbot County · 60 served · groundwater4
CITY OF HAGERSTOWN · Washington County · 92,200 served · surface water3
TOWN OF CENTREVILLE · Queen Anne's County · 3,322 served · groundwater3
TOWN OF SMITHSBURG DISTRIBUTION SYSTEM · Washington County · 2,500 served · purchased surface water3
BENEDICTINE SCHOOL · Caroline County · 300 served · groundwater3
WOODBINE VILLAGE MOBILE HOME PARK · Carroll County · 150 served · groundwater3
BOH-NAK MOBILE HOME PARK · Wicomico County · 85 served · groundwater3
RESERVOIR TRAILER PARK · Carroll County · 79 served · groundwater3
SULLIVANS MOBILE HOME PARK COMMUNITY · Carroll County · 70 served · groundwater3
PLEASANT HILL MOBILE HOME PARK · Cecil County · 64 served · groundwater3
ANGELICA NURSERIES - NURSERY VIEW · Kent County · 38 served · groundwater3
TOWN OF LEONARDTOWN · St. Mary's County · 5,000 served · groundwater2
TOWN OF PITTSVILLE · Wicomico County · 1,500 served · groundwater2
GLEN MEADOWS RETIREMENT COMMUNITY · Baltimore County · 468 served · groundwater under surface influence2
OAK LANE MOBILE HOME PARK · Cecil County · 55 served · groundwater2
TOWN OF OCEAN CITY · Worcester County · 30,000 served · groundwater1
CITY OF BOWIE · Prince George's County · 25,000 served · groundwater1
TOWN OF CHESTERTOWN · Kent County · 5,400 served · groundwater1
TOWN OF CHARLESTOWN · Cecil County · 3,791 served · groundwater1
EASTERN CORRECTIONAL INSTITUTE · Somerset County · 3,500 served · groundwater1
TOWN OF NORTH BEACH · Calvert County · 3,000 served · groundwater1
WAKEFIELD VALLEY · Carroll County · 2,436 served · groundwater under surface influence1
SAINT MARYS COLLEGE · St. Mary's County · 2,200 served · groundwater1
TOWN OF RISING SUN · Cecil County · 2,200 served · purchased surface water1
TOWN OF HURLOCK · Dorchester County · 2,150 served · groundwater1
TOWN & COUNTRY MOBILE HOME PARK · Cecil County · 950 served · groundwater1
HOLIDAY MOBILE ESTATES, INC. · Anne Arundel County · 900 served · groundwater1
LORD CALVERT TRAILER PARK · St. Mary's County · 892 served · groundwater1
TOWN OF PRESTON · Caroline County · 750 served · groundwater1
KESWICK MULTI-CARE CENTER · Baltimore city County · 575 served · purchased surface water1
TOWN OF GALENA · Kent County · 560 served · groundwater1
BEACH HARBOR · Queen Anne's County · 481 served · groundwater1
THE CALVERTON SCHOOL · Calvert County · 461 served · groundwater1
TOWN OF CLEAR SPRING · Washington County · 455 served · groundwater under surface influence1
GAITHER MANOR APARTMENTS · Carroll County · 450 served · groundwater1
STONEY CHASE/ ROCK CREEK M.H.P.S · Cecil County · 396 served · groundwater1
CAROLINE ACRES MOBILE HOME PARK · Caroline County · 395 served · groundwater1
LAKE HAVEN MOBILE HOME PARK · Worcester County · 384 served · groundwater1
SUMMERHILL MOBILE HOME PARK · Anne Arundel County · 350 served · groundwater1
CHELTENHAM BOYS VILLAGE · Prince George's County · 330 served · groundwater1
CECIL WOODS M.H.P. DISTRIBUTION SYSTEM · Cecil County · 320 served · purchased groundwater1
LUTHERAN VILLAGE AT MILLER'S GRANT · Howard County · 315 served · purchased surface water1
PHEASANT RIDGE ESTATES · Carroll County · 300 served · groundwater1
LODGECLIFFE DISTRIBUTION SYSTEM · Dorchester County · 300 served · purchased groundwater1
MIDLOTHIAN WATER COMPANY · Allegany County · 300 served · groundwater1
SHERWOOD FOREST/FOREST VIEW VILLAGE MHP · Cecil County · 293 served · groundwater1
AUTUMN LAKE HEALTHCARE · Cecil County · 290 served · groundwater1
BAY COUNTRY ESTATES MOBILE HOME PARK · Cecil County · 276 served · groundwater1
BEAVER RUN MOBILE HOME PARK · Dorchester County · 275 served · groundwater1
CHARLOTTE HALL VA HOME · St. Mary's County · 270 served · groundwater1
CONOWINGO MOBILE HOME PARK · Cecil County · 250 served · groundwater1
HEBRON WOODS MOBILE HOME PARK · Wicomico County · 250 served · groundwater1
FAHRNEY-KEEDY SENIOR LIVING COMMUNITY · Washington County · 250 served · groundwater under surface influence1
REGENCY MANOR MOBILE HOME PARK · Calvert County · 224 served · groundwater1
CEDARHURST MOBILE HOME PARK · Wicomico County · 220 served · groundwater1
HILLANDALE MOBILE HOME PARK · Carroll County · 220 served · groundwater1
SAINT JAMES SCHOOL · Washington County · 200 served · groundwater under surface influence1
BROOK LANE HEALTH SERVICES · Washington County · 175 served · groundwater1
LANGLEY MOBILE HOME PARK · St. Mary's County · 175 served · groundwater1
VILLAS AT CATTAIL CREEK · Howard County · 170 served · groundwater1
WALSTONS MOBILE HOME PARK · Wicomico County · 165 served · groundwater1
THE NEIGHBORHOODS AT ST. ELIZABETH · Baltimore city County · 162 served · purchased surface water1
PINE SPRINGS MHP · Queen Anne's County · 160 served · groundwater1
DU MAR ESTATES WATER COMPANY · Charles County · 150 served · groundwater1
RIO VISTA PLAZA MOBILE HOME PARK · Anne Arundel County · 150 served · groundwater1
ST. MARTINS BY THE BAY · Worcester County · 120 served · groundwater1
TRANQUILITY AT FREDERICKTOWNE · Frederick County · 105 served · purchased surface water1
TYLERTON WATERWORK COOPERATIVE · Somerset County · 100 served · groundwater1
GREEN RIDGE BOYS CAMP · Allegany County · 100 served · groundwater1
RHODES POINT SOUTH WATERWORKS · Somerset County · 100 served · groundwater1
HILL WATERWORKS COOPERATIVE · Somerset County · 100 served · groundwater1
R & R ESTATES · Harford County · 96 served · groundwater1
HARBOUR LIGHT ESTATES COMMUNITY · Wicomico County · 95 served · groundwater1
PINE TREE MOBILE HOME PARK · Wicomico County · 91 served · groundwater1
INDEPENDENCE VILLAGE · Charles County · 88 served · groundwater1
DEER LODGE MOBILE HOME PARK · Washington County · 87 served · groundwater1
COLONIAL MILL ESTATES MOBILE HOME PARK · Wicomico County · 86 served · groundwater1
FOX RUN CONDOMINIUMS, INC. · Queen Anne's County · 85 served · groundwater1
REGENCY PARK ASSISTED LIVING RESIDENCE · Anne Arundel County · 85 served · groundwater1
BELLEWOOD WATER ASSOCIATION · Charles County · 75 served · groundwater1
EWELL WATERWORKS COOPERATIVE · Somerset County · 75 served · groundwater1
BAYVIEW AT KENT NARROWS · Queen Anne's County · 75 served · groundwater1
BEST RENTAL HOUSING, INC. · Wicomico County · 68 served · groundwater1
PINE TRAILER PARK · Calvert County · 65 served · groundwater1
B&L MOBILE HOME PARK · Calvert County · 65 served · groundwater1
MEADOW MOUNTAIN BOYS CAMP · Garrett County · 63 served · groundwater1
THUNDERBIRD MOTEL · Charles County · 60 served · groundwater1
BACKBONE MOUNTAIN BOYS CAMP · Garrett County · 60 served · groundwater1
QUEENS CASTLE MOBILE HOME PARK · Harford County · 60 served · groundwater1
DEEP ROOTS INC. · Cecil County · 60 served · groundwater1
FOUNTAIN GREEN MOBILE HOME PARK · Harford County · 55 served · groundwater1
GARDEN ESTATES CENTRAL WATER · Charles County · 55 served · groundwater1
LAUREL WATER SUPPLY · Charles County · 50 served · groundwater1
MAYBELLE MANOR MOBILE HOME PARK · Cecil County · 50 served · groundwater1
BAYSIDE VILLAGE · Worcester County · 50 served · groundwater1
SUNSET LAKES LLC · Worcester County · 48 served · groundwater1
GARRETT CHILDREN'S CENTER · Garrett County · 45 served · groundwater1
BB APARTMENTS (PREV WOC VILLAGE APTS) · Worcester County · 40 served · groundwater1
TOWER COURT MOBILE HOME PARK · Caroline County · 40 served · groundwater1
GRAMERCY LLC (AKA KOINONIA PARTNERSHIP ) · Baltimore County · 40 served · groundwater1
NORTHFIELD APARTMENTS · Wicomico County · 40 served · groundwater1
PIN OAK APARTMENTS · Worcester County · 40 served · groundwater1
HART HERITAGE · Harford County · 37 served · groundwater1
AMELANO MANOR · Frederick County · 36 served · groundwater1
WILLIAMS MOBILE HOME PARK · Harford County · 35 served · groundwater1
MIDTOWN WATERWORKS COOPERATIVE · Somerset County · 34 served · groundwater1
CHESTNUT POINT ESTATES DISTRIBUTION SYS. · Cecil County · 32 served · purchased groundwater1
PINEY CREEK CORPORATION · Queen Anne's County · 31 served · groundwater1
OAK TERRACE MOBILE HOME PARK LLC · Wicomico County · 30 served · groundwater1
ROCKY GAP MOBILE HOME PARK · Allegany County · 30 served · groundwater1
CLEAR VIEW MOBILE HOME PARK LLC · Harford County · 28 served · groundwater1
TAYLORS MOBILE HOME PARK · Caroline County · 27 served · groundwater1
GRAYMOUNT APARTMENTS · Cecil County · 27 served · groundwater1
WOODLAND BEACH COMMUNITY ASSOC. · Anne Arundel County · 26 served · groundwater1
CHURCH HILL CONDO, INC. (THE POND) · Queen Anne's County · 25 served · groundwater1
WASHINGTON SUBURBAN SANITARY COMMISSION · Montgomery County · 1,900,000 served · surface waternone on record
GLEN BURNIE-BROADNECK · Anne Arundel County · 290,606 served · groundwaternone on record
HOWARD COUNTY D.P.W. DISTRIBUTION · Howard County · 286,158 served · purchased surface waternone on record
HARFORD COUNTY D.P.W. · Harford County · 104,567 served · surface waternone on record
WALDORF - CHARLES COUNTY DPW · Charles County · 84,296 served · purchased surface waternone on record
NEW DESIGN - FREDERICK COUNTY · Frederick County · 74,911 served · surface waternone on record
CROFTON-ODENTON · Anne Arundel County · 62,986 served · groundwaternone on record
FORT GEORGE G. MEADE · Anne Arundel County · 62,234 served · groundwaternone on record
CITY OF FREDERICK · Frederick County · 54,000 served · surface waternone on record
CITY OF ROCKVILLE · Montgomery County · 52,000 served · surface waternone on record
LEXINGTON PARK · St. Mary's County · 43,030 served · groundwaternone on record
CITY OF ANNAPOLIS · Anne Arundel County · 35,000 served · groundwaternone on record
CITY OF SALISBURY · Wicomico County · 30,343 served · groundwaternone on record
CITY OF CUMBERLAND · Allegany County · 27,039 served · surface waternone on record
BROAD CREEK · Anne Arundel County · 26,033 served · groundwaternone on record
PATUXENT NAVAL AIR STATION (NAVFAC-WASH) · St. Mary's County · 22,000 served · groundwaternone on record
CITY OF ABERDEEN · Harford County · 18,006 served · purchased surface waternone on record
EASTON UTILITIES · Talbot County · 17,357 served · groundwaternone on record
CITY OF CAMBRIDGE WATER · Dorchester County · 15,000 served · groundwaternone on record
CHAPEL HILL - ABERDEEN PROVING GROUNDS · Harford County · 15,000 served · groundwaternone on record
MARYLAND AMERICAN WATER COMPANY · Harford County · 13,200 served · surface waternone on record
OCEAN PINES · Worcester County · 11,890 served · groundwaternone on record
TOWN OF LA PLATA · Charles County · 11,535 served · groundwaternone on record
CITY OF FROSTBURG · Allegany County · 11,000 served · surface waternone on record
TOWN OF MOUNT AIRY · Carroll County · 9,890 served · groundwaternone on record
CHESAPEAKE RANCH ESTATES · Calvert County · 9,500 served · groundwaternone on record
STEVENSVILLE · Queen Anne's County · 9,155 served · groundwaternone on record
U.S. NAVAL ACADEMY · Anne Arundel County · 8,700 served · groundwaternone on record
TOWN OF WALKERSVILLE · Frederick County · 8,440 served · groundwater under surface influencenone on record
CITY OF BRUNSWICK · Frederick County · 7,312 served · surface waternone on record
CITY OF TANEYTOWN · Carroll County · 6,750 served · groundwaternone on record
TOWN OF HAMPSTEAD · Carroll County · 6,600 served · groundwaternone on record
BRYANS ROAD · Charles County · 6,260 served · groundwaternone on record
TOWN OF THURMONT · Frederick County · 6,200 served · groundwater under surface influencenone on record
MYSTIC HARBOUR · Worcester County · 5,945 served · groundwaternone on record
CITY OF FRUITLAND · Wicomico County · 5,907 served · groundwaternone on record
EASTERN REGION ALLEGANY DISTRIB. SYSTEM · Allegany County · 5,703 served · purchased surface waternone on record
DEEP CREEK LAKE WATER SERVICE AREA · Garrett County · 5,502 served · groundwaternone on record
LAVALE SANITARY COMMISSION · Allegany County · 5,500 served · purchased surface waternone on record
MARYLAND AMERICAN WATER--SEVERN SYSTEM · Anne Arundel County · 5,447 served · groundwaternone on record
TOWN OF CHESAPEAKE BEACH · Calvert County · 5,000 served · groundwaternone on record
WESTERN REGION ALLEGANY DISTRIB. SYSTEM · Allegany County · 4,955 served · purchased surface waternone on record
TOWN OF MANCHESTER · Carroll County · 4,954 served · groundwaternone on record
TOWN OF BERLIN · Worcester County · 4,500 served · groundwaternone on record
TOWN OF DELMAR · Wicomico County · 4,500 served · groundwaternone on record
TOWN OF DENTON · Caroline County · 4,500 served · groundwaternone on record
PRINCE FREDERICK · Calvert County · 4,371 served · groundwaternone on record
TOWN OF MIDDLETOWN · Frederick County · 4,288 served · groundwaternone on record
BOONSBORO - KEEDYSVILLE · Washington County · 4,250 served · surface waternone on record
TOWN OF INDIAN HEAD · Charles County · 4,100 served · groundwaternone on record
THE PROVINCES · Anne Arundel County · 3,991 served · groundwaternone on record
SOLOMONS · Calvert County · 3,811 served · groundwaternone on record
NAVAL SUPPORT FACILITY, INDIAN HEAD · Charles County · 3,321 served · groundwaternone on record
COUNTRY LAKES · St. Mary's County · 3,016 served · groundwaternone on record
TOWN OF MOUNTAIN LAKE PARK · Garrett County · 3,000 served · groundwaternone on record
CITY OF CRISFIELD · Somerset County · 2,976 served · groundwaternone on record
TOWN OF EMMITSBURG · Frederick County · 2,921 served · surface waternone on record
CEDAR COVE · St. Mary's County · 2,728 served · groundwaternone on record
BEL AIR - PINTO DISTRIBUTION SYSTEM · Allegany County · 2,614 served · purchased surface waternone on record
FOUNTAINDALE SOUTH · Frederick County · 2,610 served · groundwater under surface influencenone on record
TOWN OF FEDERALSBURG · Caroline County · 2,450 served · groundwaternone on record
LAKE VILLAGE TOWNHOMES · Anne Arundel County · 2,400 served · groundwaternone on record
TOWN OF WILLIAMSPORT DISTRIBUTION SYSTEM · Washington County · 2,400 served · purchased surface waternone on record
GREENRIDGE SUBDIVISION · Harford County · 2,271 served · purchased surface waternone on record
HERALD HARBOR · Anne Arundel County · 2,241 served · groundwaternone on record
MOUNTAIN HILL WATER COMPANY · Cecil County · 2,154 served · purchased surface waternone on record
JOHNS HOPKINS UNIVERSITY · Baltimore city County · 2,058 served · purchased surface waternone on record
BEACHES WATER CO-OPERATIVE · Calvert County · 2,000 served · groundwaternone on record
TOWN OF HANCOCK · Washington County · 1,921 served · groundwaternone on record
MOUNT SAINT MARYS UNIVERSITY · Frederick County · 1,900 served · groundwaternone on record
TOWN OF GREENSBORO · Caroline County · 1,878 served · groundwaternone on record
TOWN OF OAKLAND · Garrett County · 1,850 served · surface waternone on record
POTOMAC HEIGHTS · Charles County · 1,800 served · groundwaternone on record
TOWN OF ROCK HALL · Kent County · 1,750 served · groundwaternone on record
TOWN OF NEW WINDSOR · Carroll County · 1,732 served · groundwaternone on record
TOWN OF RIDGELY · Caroline County · 1,600 served · groundwaternone on record
LAKESIDE VILLAGE · Washington County · 1,575 served · purchased surface waternone on record
KNOLLS OF WINDSOR · Frederick County · 1,553 served · groundwater under surface influencenone on record
TOWN OF MYERSVILLE · Frederick County · 1,516 served · surface waternone on record
WATERSIDE · Frederick County · 1,509 served · purchased surface waternone on record
SCIENTISTS CLIFFS · Calvert County · 1,425 served · groundwaternone on record
CROWNSVILLE HOSPITAL CENTER · Anne Arundel County · 1,348 served · groundwaternone on record
BOONES MOBILE ESTATES · Anne Arundel County · 1,315 served · groundwaternone on record
TOWN OF FUNKSTOWN DISTRIBUTION SYSTEM · Washington County · 1,300 served · purchased surface waternone on record
WICOMICO SHORES · St. Mary's County · 1,262 served · groundwaternone on record
FAIRLAND CROSSING APARTMENTS · Montgomery County · 1,248 served · purchased surface waternone on record
SHERWOOD FOREST WATER COMPANY · Anne Arundel County · 1,200 served · groundwaternone on record
TOWN OF TRAPPE · Talbot County · 1,200 served · groundwaternone on record
CHESAPEAKE HEIGHTS (BAYSIDE FOREST) · Calvert County · 1,190 served · groundwaternone on record
GREENBRIER · St. Mary's County · 1,161 served · groundwaternone on record
HIGHFIELD · Washington County · 1,141 served · groundwaternone on record
SUMMIT/HIGHLANDS · Calvert County · 1,108 served · groundwaternone on record
SAM HILL ESTATES · Frederick County · 1,036 served · groundwaternone on record
BAYSIDE-QUEENSLANDING · STEVENSVILLE · 1,030 served · groundwaternone on record
TOWN OF HEBRON · Wicomico County · 1,022 served · groundwaternone on record
TOWN OF WILLARDS · Wicomico County · 1,021 served · groundwaternone on record
BRETON BAY · St. Mary's County · 1,012 served · groundwaternone on record
TOWN OF UNION BRIDGE · Carroll County · 997 served · groundwater under surface influencenone on record
WORTON · Kent County · 955 served · groundwaternone on record
PINE HILLS · Cecil County · 953 served · groundwaternone on record
CAMBRIDGE FARMS · Frederick County · 953 served · groundwaternone on record
SWAN POINT · Charles County · 945 served · groundwaternone on record
PROSPECT BAY · Queen Anne's County · 913 served · groundwaternone on record
TOWN OF GRANTSVILLE · Garrett County · 885 served · groundwaternone on record
STELLA MARIS · Baltimore County · 873 served · purchased surface waternone on record
SOUTHERN REGION ALLEGANY DISTRIB. SYSTEM · Allegany County · 865 served · purchased surface waternone on record
TOWN OF WOODSBORO · Frederick County · 846 served · groundwaternone on record
MARYLAND MANOR MOBILE HOME PARK · Anne Arundel County · 810 served · groundwaternone on record
CEDARVILLE MOBILE HOME PARK · Prince George's County · 780 served · groundwaternone on record
FAIRMOUNT · Somerset County · 750 served · groundwaternone on record
LYONS CREEK ESTATES · Anne Arundel County · 750 served · groundwaternone on record
CLIFFTON ON THE POTOMAC · Charles County · 744 served · groundwaternone on record
TOWN OF OXFORD · Talbot County · 726 served · groundwaternone on record
FAIRLEE · Kent County · 725 served · groundwaternone on record
HUNTING QUARTERS · St. Mary's County · 715 served · groundwaternone on record
TOWN OF QUEENSTOWN · Queen Anne's County · 705 served · groundwaternone on record
ROLLING ACRES · St. Mary's County · 699 served · groundwaternone on record
MOUNT AETNA · Washington County · 688 served · groundwaternone on record
MARTINGHAM UTILITIES COOPERATIVE · Talbot County · 675 served · groundwaternone on record
TOWN OF CHESAPEAKE CITY [FORMERLY SOUTH] · Cecil County · 673 served · purchased groundwaternone on record
PINEY POINT · St. Mary's County · 672 served · groundwaternone on record
TOWN OF MILLINGTON · Kent County · 625 served · groundwaternone on record
ST. CLEMENTS SHORES · St. Mary's County · 620 served · groundwaternone on record
CHARLOTTE HALL · St. Mary's County · 615 served · groundwaternone on record
HUNTERS BROOKE/FALCON RIDGE SUBD · Charles County · 614 served · groundwaternone on record
OYSTER COVE · Queen Anne's County · 600 served · groundwaternone on record
GRASONVILLE · Queen Anne's County · 600 served · groundwaternone on record
BRIDGE POINTE-KENT ISLAND VILLAGE · STEVENSVILLE · 600 served · groundwaternone on record
FORREST FARM SUBDIVISION · St. Mary's County · 577 served · groundwaternone on record
LAUREL RIDGE · St. Mary's County · 560 served · groundwaternone on record
CHARLES COUNTY GARDENS WATER · Charles County · 551 served · groundwaternone on record
WAYSONS MOBILE COURT · Anne Arundel County · 540 served · groundwaternone on record
TOWN OF SECRETARY · Dorchester County · 535 served · groundwaternone on record
PERSIMMON HILLS · St. Mary's County · 514 served · groundwaternone on record
WILDERNESS RUN · St. Mary's County · 511 served · groundwaternone on record
RIDDLE FARM · Worcester County · 500 served · groundwaternone on record
EPPING FOREST · Anne Arundel County · 500 served · groundwaternone on record
NANTUCKET POINT(DISTRIBUTION-DELAWARE) · Worcester County · 500 served · purchased groundwaternone on record
CRYSTAL BEACH MANOR/T&C UTILITY · Cecil County · 500 served · groundwaternone on record
SWAN HARBOUR DELL MOBILE HOME PARK · Harford County · 500 served · groundwaternone on record
TOWN OF SUDLERSVILLE · Queen Anne's County · 497 served · groundwaternone on record
MISTY MEADOWS 1 / HIGHLAND HILLS M.H.P. · Cecil County · 460 served · groundwaternone on record
TOWN OF VIENNA · Dorchester County · 460 served · groundwaternone on record
PATUXENT MOBILE ESTATES · Anne Arundel County · 450 served · groundwaternone on record
HARBOR VIEW · Cecil County · 437 served · groundwaternone on record
CROSS POINT SUBDIVISION · Calvert County · 434 served · groundwaternone on record
SUNNYBROOK · Baltimore County · 416 served · groundwaternone on record
ELKRIDGE ESTATES OF ROLAND PARK · Baltimore County · 414 served · purchased surface waternone on record
METROPOLITAN OF BALTIMORE · Baltimore city County · 414 served · purchased surface waternone on record
TOWN OF EAST NEW MARKET · Dorchester County · 400 served · groundwaternone on record
BENJAMINS VILLAGE/HOMESTEAD M.H.P. · Cecil County · 400 served · groundwaternone on record
CARPENTERS POINT WATER CO. · Cecil County · 400 served · groundwaternone on record
STEEPLECHASE WATERWORKS · Wicomico County · 395 served · groundwaternone on record
BONNIE BROOK · Dorchester County · 390 served · groundwaternone on record
CAVALIER COUNTRY · Calvert County · 381 served · groundwaternone on record
BENEDICT · Charles County · 376 served · groundwaternone on record
KINGS MANOR - WHITE PLAINS WATER CO, INC · Charles County · 372 served · groundwaternone on record
TOWN OF KITZMILLER · Garrett County · 370 served · groundwaternone on record
SHORES OF CALVERT · Calvert County · 361 served · groundwaternone on record
BLOOMINGTON · Garrett County · 350 served · surface waternone on record
CALVERT BEACH - DECATUR STREET · Calvert County · 350 served · groundwaternone on record
ST. LEONARD · Calvert County · 350 served · groundwaternone on record
POMUNK WATER COMPANY DISTRIBUTION SYSTEM · Charles County · 340 served · purchased groundwaternone on record
COPPERFIELD · Frederick County · 338 served · groundwaternone on record
KENWOOD BEACH · Calvert County · 338 served · groundwaternone on record
NEWARK · Worcester County · 325 served · groundwaternone on record
WHISPERING PINES MOBILE HOME PARK · Cecil County · 325 served · groundwaternone on record
IDLEWOOD PARK · Charles County · 320 served · groundwaternone on record
BEL ALTON · Charles County · 311 served · groundwaternone on record
TOWN OF ACCIDENT · Garrett County · 300 served · groundwaternone on record
KENNEDYVILLE · Kent County · 300 served · groundwaternone on record
CALVERT MANOR · Prince George's County · 300 served · groundwaternone on record
WESTSIDE MOBILE HOME PARK · Wicomico County · 300 served · groundwaternone on record
LEXINGTON ESTATES · St. Mary's County · 300 served · groundwaternone on record
BAY COUNTRY MOBILE HOME PARK · Dorchester County · 300 served · groundwaternone on record
EDESVILLE · Kent County · 296 served · purchased groundwaternone on record
COUNTRY MEADOWS OF FREDERICK · Frederick County · 295 served · purchased surface waternone on record
MARLEY RUN · Calvert County · 290 served · groundwaternone on record
CECIL WOODS MOBILE HOME PARK WTP · Cecil County · 285 served · groundwaternone on record
CHAPEL POINT WDS/ JUDE HOUSE/ COMM CTR · Charles County · 280 served · groundwaternone on record
GIBSON ISLAND · Anne Arundel County · 275 served · groundwaternone on record
TOWN OF DEER PARK · Garrett County · 272 served · groundwaternone on record
BIRCH MANOR · St. Mary's County · 272 served · groundwaternone on record
GRANDVIEW HAVEN · St. Mary's County · 269 served · groundwaternone on record
MILLINGTON DISTRIBUTION SYSTEM · Kent County · 260 served · purchased groundwaternone on record
WHITE ROCK · Frederick County · 256 served · groundwaternone on record
WHITLEY PARK CONDOMINIUMS · Montgomery County · 256 served · purchased surface waternone on record
PARIS OAKS / DAYS END · Calvert County · 251 served · groundwaternone on record
TOWN OF DARLINGTON · Harford County · 250 served · groundwaternone on record
EDEN MOBILE HOME PARK · Somerset County · 250 served · groundwaternone on record
CAMPUS HILLS WATER WORKS · Harford County · 250 served · groundwaternone on record
AQUALAND CAMPGROUND · Charles County · 240 served · groundwaternone on record
VILLAGES AT LEONARDTOWN · St. Mary's County · 239 served · groundwaternone on record
PINEY POINT LANDINGS · St. Mary's County · 239 served · groundwaternone on record
ROSEMONT DISTRIBUTION SYSTEM · Frederick County · 237 served · purchased surface waternone on record
ROSE HAVEN · Anne Arundel County · 235 served · groundwaternone on record
FENWICK MANOR · St. Mary's County · 234 served · groundwaternone on record
CRELLIN · Garrett County · 230 served · groundwaternone on record
ELLENWOOD · Charles County · 229 served · groundwaternone on record
SANDY HOOK · Washington County · 220 served · groundwaternone on record
LAKESIDE VISTA · Harford County · 219 served · groundwaternone on record
FOREST GREEN COURT MOBILE HOME PARK · Cecil County · 212 served · groundwaternone on record
LAKEWOOD · Calvert County · 203 served · groundwaternone on record
WESTERN SHORES · Calvert County · 200 served · groundwaternone on record
RED HILL WATER COMPANY, INC. · Charles County · 200 served · groundwaternone on record
LEONARDTOWN FARM · St. Mary's County · 193 served · groundwaternone on record
SOUTHGATE · St. Mary's County · 188 served · groundwaternone on record
MARIELLEN PARK · Charles County · 184 served · groundwaternone on record
OAK HILL WATER COMPANY, LLC · Charles County · 180 served · groundwaternone on record
TODD VILLAGE MOBILE HOME PARK · Carroll County · 180 served · groundwaternone on record
MAPLE HILL MOBILE ESTATES · Cecil County · 180 served · groundwaternone on record
NAYLOR MILL VILLAGE MOBILE HOME PARK · Wicomico County · 180 served · groundwaternone on record
BRADFORD ESTATES · Frederick County · 178 served · groundwaternone on record
MOUNT CARMEL WOODS · Charles County · 175 served · groundwaternone on record
NEWTOWN VILLAGE · Charles County · 170 served · groundwaternone on record
KING & KENNEDY · St. Mary's County · 169 served · groundwaternone on record
BARK HILL BIBLE CHURCH · Carroll County · 163 served · groundwaternone on record
CHESAPEAKE ESTATES MOBILE HOME PARK · Cecil County · 159 served · groundwaternone on record
WALNUT CREEK · Calvert County · 158 served · groundwaternone on record
TOWN OF HENDERSON · Caroline County · 156 served · groundwaternone on record
ROCKBROOK VILLAGE MOBILE HOME PARK · Carroll County · 150 served · groundwaternone on record
OAK RIDGE MOBILE HOME PARK · Wicomico County · 150 served · groundwaternone on record
RIVERVIEW MOBILE HOME PARK · Worcester County · 150 served · groundwaternone on record
PLEASANT VALLEY · Carroll County · 150 served · groundwaternone on record
TURKEY HILL WATER COMPANY · Charles County · 150 served · groundwaternone on record
POMFRET ESTATES - UTILCO, INC. · Charles County · 150 served · groundwaternone on record
GORMAN · Garrett County · 150 served · groundwaternone on record
BRIDDLETOWN DISTRIBUTION SYSTEM · Worcester County · 150 served · purchased groundwaternone on record
JONESTOWN WATER SYSTEM · Caroline County · 150 served · groundwaternone on record
LIBERTYTOWN EAST · Frederick County · 140 served · groundwaternone on record
PINE HILL WATER COMPANY · Charles County · 140 served · groundwaternone on record
HOLLAND FOREST · St. Mary's County · 139 served · groundwaternone on record
TRIMAC WATER COMPANY - FOREST PARK · Charles County · 139 served · groundwaternone on record
WOODLAWN MOBILE HOME PARK - NEW · Cecil County · 134 served · groundwaternone on record
GREEN MEADOWS WATER COMPANY · Charles County · 132 served · groundwaternone on record
FOX MEADOW · St. Mary's County · 128 served · groundwaternone on record
BEANTOWN PARK- WOODLEY ROAD · Charles County · 127 served · groundwaternone on record
POMONKEY WATER COMPANY - FORD HEIGHTS · Charles County · 125 served · groundwaternone on record
HUNTING HILLS · Calvert County · 124 served · groundwaternone on record
COOK'S TRAILER COURT (AKA GARRETT TP) · St. Mary's County · 120 served · groundwaternone on record
ELK RIDGE LAKE · Washington County · 120 served · groundwaternone on record
DORCHESTER COUNTRY ESTATES M.H.P. · Dorchester County · 118 served · groundwaternone on record
LIGHTHOUSE SENIOR LIVING ELLICOTT CITY · Howard County · 113 served · purchased surface waternone on record
NEWTOWN ESTATES - TIP HILL WATER CO. · Charles County · 110 served · groundwaternone on record
HIGHLAND ESTATES DISTRIBUTION SYSTEM · Allegany County · 105 served · purchased surface waternone on record
PLEASANT VIEW NURSING HOME · Carroll County · 104 served · groundwaternone on record
ROUTE 7 DISTRIBUTION SYSTEM · Cecil County · 100 served · purchased surface waternone on record
WHITE PLAINS 1 MHP/SMITTYS · Charles County · 100 served · groundwaternone on record
CALVERT BEACH / FOREST TRAIL · Calvert County · 100 served · groundwaternone on record
COLUMBIA TOWERS · Montgomery County · 97 served · purchased surface waternone on record
LIBERTYTOWN APARTMENTS · Frederick County · 97 served · groundwaternone on record
GRANITE MOBILE HOME PARK · Baltimore County · 96 served · groundwaternone on record
SPRING VALLEY · Charles County · 91 served · groundwaternone on record
WHITE SANDS · Calvert County · 82 served · groundwaternone on record
CHESTNUT POINT ESTATES WTP · Cecil County · 82 served · groundwaternone on record
POLINGS MOBILE HOME PARK · Frederick County · 80 served · groundwaternone on record
HERITAGE MOBILE HOME PARK · Dorchester County · 80 served · groundwaternone on record
CALVERT MOBILE HOME PARK · Calvert County · 80 served · groundwaternone on record
AVON CREST · Charles County · 79 served · groundwaternone on record
RECKLEY SPRING COMMUNITY WATER · Allegany County · 78 served · groundwaternone on record
LAKEVIEW MHP LLC · Carroll County · 76 served · groundwaternone on record
TIMBER GROVE MHP · Cecil County · 76 served · groundwaternone on record
SPRING VIEW MOBILE HOME PARK · Frederick County · 70 served · groundwaternone on record
NELPINE MOBILE HOME PARK · Caroline County · 70 served · groundwaternone on record
WHITE PLAINS 2 MHP/JACK BLAIR · Charles County · 70 served · groundwaternone on record
MISTY MEADOWS 2 MOBILE HOME PARK · Cecil County · 70 served · groundwaternone on record
TARA SUBDIVISION · Calvert County · 68 served · groundwaternone on record
TOWN OF LUKE · Allegany County · 68 served · purchased surface waternone on record
HEARTS DESIRE · St. Mary's County · 65 served · groundwaternone on record
BANKS ODEE · Charles County · 65 served · groundwaternone on record
WOODLAND TRAILER PARK · Washington County · 65 served · groundwaternone on record
MULBERRY SOUTH · St. Mary's County · 65 served · groundwaternone on record
WILD GOOSE CREST SUBDIVISION · St. Mary's County · 65 served · groundwaternone on record
KEYSERS RIDGE · Garrett County · 63 served · groundwaternone on record
DELMARVA MOBILE HOME PARK · Worcester County · 62 served · groundwaternone on record
SOUTHVIEW WISE · Charles County · 61 served · groundwaternone on record
HAWTHORNE WATER SUPPLY, INC · Charles County · 60 served · groundwaternone on record
CECILTON MANOR MOBILE HOME PARK · Cecil County · 60 served · groundwaternone on record
BENNETT MOBILE HOME PARK · Wicomico County · 60 served · groundwaternone on record
GATEWAY VILLAGE MOBILE HOME PARK · Wicomico County · 60 served · groundwaternone on record
CINNAMON WOODS · Cecil County · 60 served · groundwaternone on record
RIVERSIDE COMPLEX · Queen Anne's County · 60 served · groundwaternone on record
TAPESTRY NORTH · Calvert County · 60 served · groundwaternone on record
TWIN ARCH MOBILE HOME PARK · Carroll County · 50 served · groundwaternone on record
WEST WHITE PLAINS · Charles County · 50 served · groundwaternone on record
WOODLAWN MOBILE HOME PARK - OLD · Cecil County · 50 served · groundwaternone on record
PARKWAY SUBDIVISION WATER COMPANY · Charles County · 50 served · groundwaternone on record
BROPHYTOWN DISTRIBUTION SYSTEM · Allegany County · 47 served · purchased surface waternone on record
CEDAR RIDGE CHILDREN'S HOME & SCHOOL · Washington County · 45 served · groundwater under surface influencenone on record
OAKWOOD · Charles County · 45 served · groundwaternone on record
MATTHEWS MANOR · Charles County · 45 served · groundwaternone on record
GREENWAY APARTMENTS · Wicomico County · 40 served · groundwaternone on record
THUNDERBIRD APARTMENTS · Charles County · 40 served · groundwaternone on record
TAYLORSVILLE MHC, LLC · Carroll County · 38 served · groundwaternone on record
OBLATES OF ST. FRANCIS · Cecil County · 36 served · groundwaternone on record
NIELSEN MOBILE HOME PARK [MARSH CREEK] · Caroline County · 35 served · groundwaternone on record
HARMAN SUBDIVISION · Caroline County · 35 served · groundwaternone on record
PHOENIX · Baltimore County · 31 served · groundwaternone on record
TENTHOUSE CREEK COMMUNITY - ACDS · Anne Arundel County · 23 served · groundwaternone on record
Source: U.S. EPA Safe Drinking Water Information System (SDWIS). "Health-based" counts maximum-contaminant-level, treatment-technique and maximum-residual-disinfectant-level violations recorded since 2015. A violation on record — especially a resolved one — is not a statement about water quality today; contact the water system or your state drinking-water program for current information.