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Browse Water Systems

16,271 public water systems in OH.

Public Water Systems Database

Browse 16,271 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
CAMBRIDGE, CITY OF OH3000111 Ohio Community 10,520
GALION CITY OH1700211 Ohio Community 10,453
CITY OF HEATH PWS OH4500912 Ohio Community 10,310
BUCKEYE WATER DISTRICT - OHIO RIVER OH1502911 Ohio Community 10,300
LONDON CITY PWS OH4900712 Ohio Community 10,256
HAMILTON/NORTH WATER PLANT OH0901012 Ohio Community 10,080
EARNHART HILL WATER DISTRICT PWS OH6500812 Ohio Community 10,057
WILLIAM ARTER,SECY,HARTFORD FR OH4552212 Ohio Transient Non-Community 10,000
WILLIAM ARTER,SECY,HARTFORD FR OH4552112 Ohio Transient Non-Community 10,000
CAESARS CREEK FLEA MARKET OH1434808 Ohio Transient Non-Community 10,000
CLERMONT COUNTY WATER, MGS OH1300422 Ohio Community 10,000
CLERMONT COUNTY WATER, PUB OH1300412 Ohio Community 10,000
TRUMBULL CO. - SOUTHEAST PWS OH7803203 Ohio Community 9,931
PATASKALA CITY OH4502512 Ohio Community 9,900
LITTLE HOCKING WATER ASSOCIATION, INC. OH8400212 Ohio Community 9,892
SHELBY WATER DEPARTMENT OH7004514 Ohio Community 9,800
HUBER HEIGHTS-PLANT #2 OH5702022 Ohio Community 9,750
WYOMING CITY PWS OH3102212 Ohio Community 9,700
JACKSON, CITY OF OH4000111 Ohio Community 9,691
NORTHWESTERN W AND SD - OREGON WTLN 200 OH8704203 Ohio Community 9,629
OAKWOOD CITY PWS OH5701915 Ohio Community 9,572
READING CITY PWS OH3101812 Ohio Community 9,506
BELLBROOK WATER WORKS OH2901112 Ohio Community 9,475
SHELBY CITY OH7004511 Ohio Community 9,453
ST MARYS CITY OH0600612 Ohio Community 9,356
CANAL WINCHESTER CITY PWS OH2500312 Ohio Community 9,286
TWIN CITY WATER AND SEWER DISTRICT PWS OH7901711 Ohio Community 9,224
TIPP CITY CITY PWS OH5501512 Ohio Community 9,221
LOUISVILLE CITY PWS OH7603012 Ohio Community 9,186
SHEFFIELD LAKE CITY PWS OH4701103 Ohio Community 9,108
HUBBARD WATER DEPARTMENT OH7801412 Ohio Community 9,000
CHILLICOTHE CORRECTIONAL INSTITUTION OH7101212 Ohio Community 9,000
TROTWOOD CITY PWS OH5702403 Ohio Community 9,000
WRIGHT STATE UNIVERSITY OH2902012 Ohio Community 8,948
GUERNSEY CO. WATER DEPT. OH3000603 Ohio Community 8,891
CLARK COUNTY NORTHRIDGE PWS OH1201003 Ohio Community 8,874
SCIOTO WATER INC.-ROSE HILL OH7300303 Ohio Community 8,861
NAPOLEON CITY OH3500811 Ohio Community 8,858
BRYAN CITY OH8600012 Ohio Community 8,729
PORTAGE COUNTY WATER RESOURCES OH6702812 Ohio Community 8,606
SUPT,KENTON WATER DEPARTMENT OH3300614 Ohio Community 8,605
OBERLIN WATER DEPARTMENT OH4700911 Ohio Community 8,600
SANITARY DISTRICT #4 OH2501003 Ohio Community 8,575
LEBANON, CITY OF-PLANT 1 OH8300712 Ohio Community 8,500
ORRVILLE CITY PWS OH8502712 Ohio Community 8,452
EATON PUBLIC WATER SYSTEM OH6801612 Ohio Community 8,400
HUDSON CITY PWS OH7701612 Ohio Community 8,385
KENTON CITY OH3300612 Ohio Community 8,360
HUBBARD CITY PWS OH7801415 Ohio Community 8,339
AQUA OHIO - CAMPBELL PWS OH5000411 Ohio Community 8,300