Is This In Your Water?← All states
451 water systems · live EPA record

What's in Maryland's water?

Every community water system in the state — populations, violations, health-based flags. Straight from the federal record.

LaurelWashington Suburban Sanitary Commission1,900,0000 viol.BaltimoreCity of Baltimore1,600,00034 viol.MillersvilleGlen Burnie-Broadneck290,60613 viol.ColumbiaHoward County D.P.W. Distribution286,1583 viol.AbingdonHarford County D.P.W.104,5674 viol.HagerstownCity of Hagerstown92,2001 viol.FrederickNew Design - Frederick County74,9115 viol.MillersvilleCrofton-Odenton62,9863 viol.Fort MeadeFort George G. Meade62,2341 viol.FrederickCity of Frederick54,0002 viol.CaliforniaLexington Park43,0305 viol.WestminsterCity of Westminster35,2568 viol.AnnapolisCity of Annapolis35,0002 viol.SalisburyCity of Salisbury30,3432 viol.Ocean CityTown of Ocean City30,0006 viol.CumberlandCity of Cumberland27,0392 viol.MillersvilleBroad Creek26,0334 viol.BowieCity of Bowie25,0003 viol.WestminsterFreedom District24,86714 viol.Patuxent RiverPatuxent Naval Air Station (Navfac-Wash)22,00013 viol.AberdeenCity of Aberdeen18,0062 viol.EastonEaston Utilities17,3572 viol.ElktonTown of Elkton15,62511 viol.CambridgeCity of Cambridge Water15,0001 viol.AberdeenChapel Hill - Aberdeen Proving Grounds15,0002 viol.Havre De GraceCity of Havre De Grace14,00025 viol.Bel AirMaryland American Water Company13,2000 viol.BerlinOcean Pines11,8908 viol.La PlataTown of La Plata11,5350 viol.FrostburgCity of Frostburg11,0000 viol.Mount AiryTown of Mount Airy9,8904 viol.LusbyChesapeake Ranch Estates9,5001 viol.StevensvilleStevensville9,1557 viol.AnnapolisU.S. Naval Academy8,7002 viol.North EastTown of North East8,60023 viol.WalkersvilleTown of Walkersville8,4402 viol.FrederickFort Detrick7,9006 viol.BrunswickCity of Brunswick7,3123 viol.TaneytownCity of Taneytown6,7500 viol.HampsteadTown of Hampstead6,6001 viol.ThurmontTown of Thurmont6,2004 viol.PoolesvilleTown of Poolesville6,0055 viol.BerlinMystic Harbour5,9452 viol.FruitlandCity of Fruitland5,9073 viol.CumberlandEastern Region Allegany Distrib. System5,7031 viol.LavaleLavale Sanitary Commission5,50012 viol.Bel AirMaryland American Water--Severn System5,4472 viol.ChestertownTown of Chestertown5,40010 viol.LonaconingMidland-Lonaconing5,00011 viol.Chesapeake BeachTown of Chesapeake Beach5,0001 viol.LeonardtownTown of Leonardtown5,00010 viol.CumberlandWestern Region Allegany Distrib. System4,9551 viol.ManchesterTown of Manchester4,9543 viol.DentonTown of Denton4,5000 viol.DelmarTown of Delmar4,5001 viol.BerlinTown of Berlin4,5002 viol.PerryvilleTown of Perryville4,41362 viol.Prince FrederickPrince Frederick4,3715 viol.MiddletownTown of Middletown4,2886 viol.BoonsboroBoonsboro - Keedysville4,2507 viol.Indian HeadTown of Indian Head4,1003 viol.Pocomoke CityCity of Pocomoke City4,10013 viol.DunkirkThe Provinces3,9911 viol.Prince FrederickSolomons3,8114 viol.WillardsTown of Charlestown3,7918 viol.CentrevilleTown of Centreville3,32222 viol.Indian HeadNaval Support Facility, Indian Head3,32113 viol.Princess AnneTown of Princess Anne3,30078 viol.CaliforniaCountry Lakes3,0164 viol.North BeachTown of North Beach3,0008 viol.OaklandTown of Mountain Lake Park3,0004 viol.ChrisfieldCity of Crisfield2,9763 viol.EmmitsburgTown of Emmitsburg2,92112 viol.CaliforniaCedar Cove2,7282 viol.St MichaelsTown of St. Michaels2,65011 viol.DunkirkBel Air - Pinto Distribution System2,6140 viol.FrederickFountaindale South2,6100 viol.SmithsburgTown of Smithsburg Distribution System2,5004 viol.FederalsburgTown of Federalsburg2,4504 viol.WestminsterWakefield Valley2,4364 viol.Snow HillTown of Snow Hill2,40912 viol.SevernLake Village Townhomes2,4001 viol.WilliamsportTown of Williamsport Distribution System2,4008 viol.DunkirkGreenridge Subdivision2,2715 viol.MillersvilleHerald Harbor2,2413 viol.WesternportTown of Westernport2,2009 viol.ElktonTown of Rising Sun2,20021 viol.MillersvilleSaint Marys College2,2002 viol.HurlockTown of Hurlock2,1505 viol.BaltimoreJohns Hopkins University2,0580 viol.DelmarDelmar Utility Comm (Tn of Delmar)2,0272 viol.St. LeonardBeaches Water Co-Operative2,0002 viol.Perry PointPerry Point V.A. Medical Center2,00016 viol.HancockTown of Hancock1,9215 viol.EmmitsburgMount Saint Marys University1,9002 viol.GreensboroTown of Greensboro1,87811 viol.OaklandTown of Oakland1,8503 viol.Indian HeadPotomac Heights1,8006 viol.SalisburySwann Keys1,7640 viol.Rock HallTown of Rock Hall1,7505 viol.New WindsorTown of New Windsor1,7322 viol.RidgelyTown of Ridgely1,6008 viol.HagerstownLakeside Village1,5752 viol.FrederickKnolls of Windsor1,5530 viol.MyersvilleTown of Myersville1,5160 viol.FrederickWaterside1,5090 viol.SykesvilleSpringfield Hospital Distribution1,50026 viol.PittsvilleTown of Pittsville1,5007 viol.Port RepublicScientists Cliffs1,4255 viol.WilliamsportTown of Sharpsburg1,3604 viol.MillersvilleCrownsville Hospital Center1,3481 viol.LothianBoones Mobile Estates1,3157 viol.FunkstownTown of Funkstown Distribution System1,3001 viol.CaliforniaWicomico Shores1,2622 viol.Sherwood ForestSherwood Forest Water Company1,2000 viol.Prince FrederickChesapeake Heights (Bayside Forest)1,1904 viol.CaliforniaGreenbrier1,1612 viol.SmithsburgHighfield1,1414 viol.Prince FrederickSummit/Highlands1,1083 viol.FrederickSam Hill Estates1,0361 viol.StevensvilleBayside-Queenslanding1,0300 viol.HebronTown of Hebron1,0223 viol.CaliforniaBreton Bay1,0123 viol.Union BridgeTown of Union Bridge9973 viol.ChestertownWorton9552 viol.FrederickCambridge Farms9530 viol.North EastTown & Country Mobile Home Park9505 viol.StevensvilleProspect Bay9135 viol.JessupHoliday Mobile Estates, Inc.9006 viol.Lexington ParkLord Calvert Trailer Park89211 viol.FrederickCloverhill 3 - Consecutive To Md01000158883 viol.GrantsvilleTown of Grantsville8854 viol.TimoniumStella Maris8730 viol.CroftonIlur Liberty Commons MHP LLC8651 viol.CumberlandSouthern Region Allegany Distrib. System8653 viol.WoodsboroTown of Woodsboro84612 viol.LothianMaryland Manor Mobile Home Park8105 viol.BrandywineCedarville Mobile Home Park7804 viol.LothianLyons Creek Estates7505 viol.PrestonTown of Preston75010 viol.Princess AnneFairmount7506 viol.OxfordTown of Oxford7264 viol.ChestertownFairlee7252 viol.CaliforniaHunting Quarters7152 viol.QueenstownTown of Queenstown70516 viol.CaliforniaRolling Acres6992 viol.HagerstownMount Aetna6883 viol.St. MichaelsMartingham Utilities Cooperative6751 viol.Chesapeake CityTown of Chesapeake City [Formerly South]6734 viol.CaliforniaPiney Point6722 viol.PotomacMcgregor Downs MHP (Sc3260059)6269 viol.MillingtonTown of Millington6255 viol.SharptownTown of Sharptown6257 viol.OaklandTown of Friendsville6224 viol.CaliforniaSt. Clements Shores6202 viol.CaliforniaCharlotte Hall6152 viol.StevensvilleOyster Cove6005 viol.StevensvilleBridge Pointe-Kent Island Village6001 viol.StevensvilleGrasonville6004 viol.CaliforniaForrest Farm Subdivision5771 viol.BaltimoreKeswick Multi-Care Center5756 viol.ChestertownTown of Galena5602 viol.CaliforniaLaurel Ridge5602 viol.WaldorfCharles County Gardens Water5516 viol.SecretaryTown of Secretary5355 viol.CaliforniaPersimmon Hills5142 viol.CaliforniaWilderness Run5113 viol.CroftonSunny Creek Mhc51066 viol.CroftonHeritage of Rantoul5004 viol.TimoniumCrystal Beach Manor/T&C Utility50010 viol.Havre De GraceSwan Harbour Dell Mobile Home Park50015 viol.BerlinRiddle Farm5001 viol.BerlinNantucket Point(Distribution-Delaware)5000 viol.StevensvilleTown of Sudlersville4973 viol.PotomacShady Acres Mobile Home Park4846 viol.BettertonTown of Betterton48116 viol.GrasonvilleBeach Harbor4813 viol.CeciltonTown of Cecilton47716 viol.Glen ArmGlen Meadows Retirement Community46835 viol.HuntingtownThe Calverton School4616 viol.StreetMisty Meadows 1 / Highland Hills M.H.P.46015 viol.ViennaTown of Vienna4603 viol.WilliamsportTown of Clear Spring4559 viol.LothianPatuxent Mobile Estates4505 viol.SykesvilleGaither Manor Apartments4506 viol.CroftonColonial Villa Mhc, LLC4505 viol.Prince FrederickCross Point Subdivision4343 viol.BaltimoreSunnybrook4165 viol.Port DepositBenjamins Village/Homestead M.H.P.40014 viol.East New MarketTown of East New Market4004 viol.ColumbiaBuel Hill Estates (Dba Eagles Landing)4008 viol.ElktonStoney Chase/ Rock Creek M.H.P.S3964 viol.SalisburySteeplechase Waterworks3952 viol.CambridgeBonnie Brook3908 viol.Prince FrederickCavalier Country3813 viol.CroftonIlur Woods Edge MHP LLC3730 viol.WaldorfKings Manor - White Plains Water Co, Inc3726 viol.Mountain Lake ParkTown of Kitzmiller3701 viol.Prince FrederickShores of Calvert3613 viol.Glen ArmSummerhill Mobile Home Park35015 viol.Prince FrederickSt. Leonard3503 viol.WaldorfCalvert Beach - Decatur Street3505 viol.OaklandBloomington3502 viol.WaldorfPomunk Water Company Distribution System3401 viol.Prince FrederickKenwood Beach3383 viol.FrederickCopperfield3380 viol.PotomacThe Oaks of Thonotosassa MHP33021 viol.BerlinNewark3250 viol.CroftonIdlewood Park3205 viol.Ellicott CityLutheran Village At Miller'S Grant3159 viol.MidlothianMidlothian Water Company3005 viol.RidgelyBenedictine School30021 viol.ColumbiaCedar Mobile Home Park30017 viol.Mount AiryPheasant Ridge Estates3006 viol.CambridgeLodgecliffe Distribution System3007 viol.AccidentTown of Accident3002 viol.ChestertownKennedyville3002 viol.AccokeekCalvert Manor3006 viol.DelmarWestside Mobile Home Park3000 viol.ChestertownEdesville2963 viol.FrederickCountry Meadows of Frederick2957 viol.ElktonSherwood Forest/Forest View Village MHP29327 viol.Prince FrederickMarley Run2903 viol.Rising SunAutumn Lake Healthcare2903 viol.La PlataChapel Point Wds/ Jude House/ Comm Ctr2805 viol.Rising SunBay Country Estates Mobile Home Park27625 viol.PotomacApplegate Mobile Home Community2758 viol.MillersvilleGibson Island27512 viol.OaklandTown of Deer Park2723 viol.CaliforniaBirch Manor2722 viol.CroftonMaplewood Mac LLC2702 viol.CaliforniaGrandview Haven2691 viol.ChestertownMillington Distribution System2601 viol.FrederickWhite Rock2560 viol.Prince FrederickParis Oaks / Days End2513 viol.ColoraWest Nottingham Academy25018 viol.BaltimoreCampus Hills Water Works2500 viol.FruitlandEden Mobile Home Park2501 viol.BoonsboroFahrney-Keedy Senior Living Community2506 viol.PotomacDruid Oaks Mobile Home Park24730 viol.CroftonRex Hill Estates, LLC2468 viol.BethesdaFairgrove MHP24434 viol.NewburgAqualand Campground2402 viol.CaliforniaPiney Point Landings2392 viol.CaliforniaVillages At Leonardtown2391 viol.FrederickRosemont Distribution System2370 viol.MillersvilleRose Haven2354 viol.CaliforniaFenwick Manor2342 viol.OaklandCrellin2302 viol.La PlataEllenwood2295 viol.CroftonEnchanted Acres Mhc LLC2256 viol.LothianRegency Manor Mobile Home Park22412 viol.PerryvilleMeadow Brook M H P224105 viol.SharpsburgSandy Hook2204 viol.SalisburyCedarhurst Mobile Home Park22011 viol.DunkirkLakeside Vista2190 viol.Port DepositForest Green Court Mobile Home Park21217 viol.DelmarHolly Oak Mobile Home Park2102 viol.CroftonIlur Portfolio 5-Surbana Estates MHP LLC2095 viol.PotomacWindward Knoll MHP20811 viol.ColumbiaPine Crest Mobile Home Park2080 viol.Prince FrederickLakewood2033 viol.WaldorfWestern Shores2006 viol.WaldorfRed Hill Water Company, Inc.2005 viol.HagerstownSaint James School20023 viol.Ellicott CityTriple J MHP20019 viol.CaliforniaLeonardtown Farm1931 viol.GaithersburgDogwood Manor Mobile Home Park1902 viol.CroftonVillage Green Mobile Home Park1888 viol.CaliforniaSouthgate1882 viol.La PlataMariellen Park1845 viol.FinksburgTodd Village Mobile Home Park1806 viol.Port DepositMaple Hill Mobile Estates18021 viol.WaldorfOak Hill Water Company, LLC18010 viol.FruitlandNaylor Mill Village Mobile Home Park18011 viol.PotomacSilver Hill Manuf Home Comm. (Sc4060019)18011 viol.FrederickBradford Estates1780 viol.CroftonEast 30 MHP1753 viol.Linthicum HeightsLangley Mobile Home Park1755 viol.ColumbiaCountry Hill Pines1749 viol.La PlataNewtown Village1708 viol.ReistertownVillas At Cattail Creek1704 viol.CroftonMt. Ivy 2019 Mhc, LLC1702 viol.CaliforniaKing & Kennedy1693 viol.SalisburyWalstons Mobile Home Park1657 viol.WestminsterBark Hill Bible Church1630 viol.BaltimoreThe Neighborhoods At St. Elizabeth16212 viol.North EastLondonderry Court MHP16062 viol.Prince FrederickWalnut Creek1583 viol.Port DepositTown of Henderson15619 viol.BaltimoreRio Vista Plaza Mobile Home Park1506 viol.DentonJonestown Water System15013 viol.WestminsterPleasant Valley1502 viol.PotomacWoodbine Village Mobile Home Park1509 viol.Ellicott CityRockbrook Village Mobile Home Park1508 viol.MarburyDu Mar Estates Water Company15012 viol.WaldorfPomfret Estates - Utilco, Inc.1509 viol.La PlataTurkey Hill Water Company1506 viol.HagerstownConcord Estates Mobile Home Park1507 viol.OaklandGorman1501 viol.WaldorfMount Pleasant Water Co., Inc.15021 viol.FruitlandOak Ridge Mobile Home Park1502 viol.BerlinBriddletown Distribution System1500 viol.BishopvilleRiverview Mobile Home Park1506 viol.ElktonGolden Kay Apartments14866 viol.BethesdaAltamaha Mobile Home Village1435 viol.WaldorfPine Hill Water Company1405 viol.FrederickLibertytown East1400 viol.WaldorfTrimac Water Company - Forest Park1396 viol.CaliforniaHolland Forest1392 viol.Port DepositWoodlawn Mobile Home Park - New13426 viol.Indian HeadGreen Meadows Water Company1325 viol.Mt. SavageBarrelville13051 viol.CaliforniaFox Meadow1283 viol.RandalstownChapel Hill Nursing Center12520 viol.WaldorfPomonkey Water Company - Ford Heights1255 viol.GaithersburgHidden Valley1251 viol.GaithersburgCircle Drive Mobile Home Park1252 viol.GaithersburgHunters Creek Estates1252 viol.Prince FrederickHunting Hills1243 viol.Prince FrederickCook'S Trailer Court (Aka Garrett Tp)12013 viol.HagerstownElk Ridge Lake1203 viol.BerlinSt. Martins By The Bay1206 viol.DelmarDorchester Country Estates M.H.P.1181 viol.CroftonIlur Portfolios - Carriage Estates LLC1153 viol.Owings MillsLighthouse Senior Living Ellicott City1130 viol.GaithersburgBean Creek Resort1129 viol.RidgelyDove Estates1110 viol.WaldorfNewtown Estates - Tip Hill Water Co.1107 viol.EldersburgAnnes MHP11011 viol.DunkirkHighland Estates Distribution System1050 viol.FrederickTranquility At Fredericktowne1059 viol.Mount AiryPleasant View Nursing Home10410 viol.CascadeGreen Ridge Boys Camp1004 viol.WaldorfCalvert Beach / Forest Trail1007 viol.JessupWhite Plains 1 MHP/Smittys1005 viol.LeonardtownChristmas Tree Farm Trailer Park10019 viol.TylertonHill Waterworks Cooperative10027 viol.TylertonRhodes Point South Waterworks10027 viol.TylertonTylerton Waterwork Cooperative10028 viol.GaithersburgPhelps Mobile Home Villa986 viol.FrederickLibertytown Apartments970 viol.BethesdaGranite Mobile Home Park9611 viol.DarlingtonR & R Estates964 viol.SalisburyHarbour Light Estates Community9514 viol.ParsonsburgPine Tree Mobile Home Park915 viol.Ellicott CityIrish Creek MHP90144 viol.GaitherburgDiamond Hill Mobile Home Park900 viol.Charlotte HallIndependence Village8826 viol.SunderlandFox Run Condominiums, Inc.854 viol.FruitlandBoh-Nak Mobile Home Park8511 viol.GambrillsRegency Park Assisted Living Residence8513 viol.BethesdaBaileys Mobile Home Park845 viol.Prince FrederickWhite Sands825 viol.East New MarketHeritage Mobile Home Park805 viol.FrederickPolings Mobile Home Park806 viol.FinksburgReservoir Trailer Park793 viol.East GreenvilleReckley Spring Community Water7856 viol.Ellicott CityLakeview MHP LLC7610 viol.StreetTimber Grove MHP7614 viol.PotomacCrystal Acres MHP7516 viol.WaldorfBellewood Water Association759 viol.MiddletownGilberts Mobile Home Park759 viol.GrasonvilleBayview At Kent Narrows757 viol.TylertonEwell Waterworks Cooperative7537 viol.Queen AnneNelpine Mobile Home Park701 viol.Ellicott CitySullivans Mobile Home Park Community709 viol.StreetMisty Meadows 2 Mobile Home Park705 viol.JessupWhite Plains 2 MHP/Jack Blair706 viol.PotomacSpring View Mobile Home Park706 viol.GaithersburgBerkeley Springs Mhc6938 viol.LukeTown of Luke688 viol.Ocean PinesBest Rental Housing, Inc.682 viol.DentonHilltop Trailer Park6523 viol.HuntingtownB&L Mobile Home Park6524 viol.LusbyPine Trailer Park6514 viol.PrivateBanks Odee656 viol.CaliforniaMulberry South652 viol.CaliforniaHearts Desire651 viol.CaliforniaWild Goose Crest Subdivision652 viol.BoonsboroWoodland Trailer Park656 viol.ChildsPleasant Hill Mobile Home Park6410 viol.Mountain Lake ParkKeysers Ridge630 viol.CroftonIlur Portfolio 5 - Wilson MHP LLC620 viol.CroftonIlur Portfolio 5 - Trailside MHP LLC621 viol.Ocean CityDelmarva Mobile Home Park622 viol.NewburgSouthview Wise611 viol.Prince FrederickTapestry North604 viol.EarlevilleDeep Roots Inc.607 viol.North EastCecilton Manor Mobile Home Park6015 viol.WaldorfHawthorne Water Supply, Inc606 viol.NewburgThunderbird Motel6042 viol.DarlingtonQueens Castle Mobile Home Park608 viol.StevensvilleRiverside Complex605 viol.ClaiborneClaiborne6022 viol.DelmarGateway Village Mobile Home Park600 viol.DelmarBennett Mobile Home Park603 viol.AnnapolisMayo Center and Apartments605 viol.North EastEcho Valley MHP60156 viol.Port DepositOak Lane Mobile Home Park5514 viol.La PlataGarden Estates Central Water5510 viol.Havre De GraceFountain Green Mobile Home Park5514 viol.Rising SunRidgeview MHP5562 viol.WestminsterTebbston On Magothy5232 viol.StevensvilleTwin Arch Mobile Home Park503 viol.Port DepositWoodlawn Mobile Home Park - Old5029 viol.La PlataParkway Subdivision Water Company5023 viol.WaldorfWest White Plains503 viol.SalisburyBayside Village505 viol.CroftonPomona Glen500 viol.LandoverGolden Acres Mobile Home Park4810 viol.BerlinSunset Lakes LLC4817 viol.CumberlandBrophytown Distribution System471 viol.FederalsburgHolly Cove Harbor Mobile Home Park4521 viol.NewburgMatthews Manor454 viol.LonaconingGarrett Children'S Center454 viol.WilliamsportCedar Ridge Children'S Home & School4513 viol.ChesterSwann Haven Mobile Home Park4430 viol.StevensonGramercy LLC (Aka Koinonia Partnership )4010 viol.FederalsburgLiberty Mobile Home Park4011 viol.DentonTower Court Mobile Home Park4017 viol.SalisburyNorthfield Apartments402 viol.Ocean CityBb Apartments (Prev Woc Village Apts)4042 viol.BerlinPin Oak Apartments405 viol.WaldorfThunderbird Apartments4021 viol.Ellicott CityTaylorsville Mhc, LLC382 viol.KennedyvilleAngelica Nurseries - Nursery View383 viol.ClarksburgCountry Village Mobile Home Park3812 viol.StreetHart Heritage3710 viol.FrederickAmelano Manor3663 viol.ElktonOblates of St. Francis361 viol.EastonNielsen Mobile Home Park [Marsh Creek]358 viol.Severna ParkWilliams Mobile Home Park354 viol.TylertonMidtown Waterworks Cooperative3428 viol.PerryvilleChestnut Point Estates Distribution Sys.322 viol.SwantonWhite Oak Mobile Home Park3225 viol.BaltimorePhoenix312 viol.ChesterPiney Creek Corporation3112 viol.RawlingsRocky Gap Mobile Home Park3011 viol.SalisburyOak Terrace Mobile Home Park LLC308 viol.GaithersburgRound Lake Estates306 viol.Port DepositJubilee MHP307 viol.White HallHydetown Park East2922 viol.DarlingtonClear View Mobile Home Park LLC286 viol.GreensboroTaylors Mobile Home Park2748 viol.PerryvilleGraymount Apartments2717 viol.SevernWoodland Beach Community Assoc.2612 viol.White HallHydetown Park West265 viol.Church HillChurch Hill Condo, Inc. (The Pond)253 viol.Ocean CityFour Seasons Park Inc.2513 viol.AnnapolisTenthouse Creek Community - Acds230 viol.