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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
WADSWORTH CITY PWS OH5201712 Ohio Community 24,356
TATE-MONROE WATER ASSOCIATION PWS OH1301312 Ohio Community 24,092
OXFORD CITY PWS OH0902312 Ohio Community 24,000
AVON CITY PWS OH4700203 Ohio Community 23,800
AVON LAKE CITY PWS OH4700311 Ohio Community 23,659
ALLIANCE CITY PWS OH7600011 Ohio Community 22,232
NILES CITY PWS OH7802403 Ohio Community 21,961
ADAMS COUNTY REGIONAL WD PWS OH0100012 Ohio Community 21,810
CHILLICOTHE CITY PWS OH7100112 Ohio Community 21,725
SYLVANIA CITY OH4801303 Ohio Community 21,618
MUSKINGUM COUNTY WATER - SE OH6000412 Ohio Community 21,540
OHIO-AMER.WATER CO,TIFFIN DIST OH7400611 Ohio Community 21,000
GALLIA CO RURAL WATER ASSOCIATION OH2700012 Ohio Community 20,995
LEBANON CITY OH8304112 Ohio Community 20,700
ASHLAND CITY OH0300112 Ohio Community 20,648
SIDNEY CITY PWS OH7501214 Ohio Community 20,614
OTTAWA COUNTY REGIONAL WATER DISTRICT OH6205011 Ohio Community 20,428
PIQUA CITY PWS OH5501211 Ohio Community 20,354
AQUA OHIO - TIFFIN OH7400614 Ohio Community 20,035
OHIO WATER SERVICE,LEE/GENEVA OH0400811 Ohio Community 20,000
OREGON CITY OH4800911 Ohio Community 19,950
NORWOOD CITY PWS OH3101703 Ohio Community 19,870
MIAMISBURG CITY PWS OH5701212 Ohio Community 19,790
NORTHWESTERN W AND SD - TOLEDO SVC OH8752812 Ohio Community 19,758
LE-AX REGIONAL WATER DISTRICT PWS OH0501111 Ohio Community 19,311
SPRINGBORO PWS OH8301412 Ohio Community 19,263
PICKERINGTON CITY PWS OH2301512 Ohio Community 19,141
SWR WATER DISTRICT SOUTH PLANT PWS OH0904112 Ohio Community 19,098
BEREA CITY PWS OH1800111 Ohio Community 18,789
MARIETTA CITY PWS OH8400412 Ohio Community 18,707
MONTGOMERY CO.RIVERSIDE SUBDIS OH5701603 Ohio Community 18,700
FREMONT CITY OH7200311 Ohio Community 18,319
NORTHERN OHIO RURAL WATER OH3902403 Ohio Community 18,224
TALLMADGE CITY PWS OH7704703 Ohio Community 18,000
LICKING REGIONAL WATER DISTRICT OH4505412 Ohio Community 17,818
SUPT,BELMONT CO.SAN.DIST.NO.3 OH0700411 Ohio Community 17,800
NEW PHILADELPHIA CITY PWS OH7900812 Ohio Community 17,410
ERIE CO PERKINS DISTRICT OH2200603 Ohio Community 17,241
FRANKLIN PUBLIC WATER SYSTEM OH8300412 Ohio Community 17,175
NORWALK CITY PWS OH3901111 Ohio Community 17,068
STEUBENVILLE, CITY OF OH4102411 Ohio Community 17,000
MOUNT VERNON CITY PWS OH4200812 Ohio Community 16,990
SALEM CITY OH1502011 Ohio Community 16,850
WRIGHT-PATTERSON AFB AREA A PWS OH2903412 Ohio Community 16,551
DEFIANCE CITY OH2000111 Ohio Community 16,494
TUPPERS PLAINS/CHESTER WATER DISTRICT OH5300612 Ohio Community 16,087
SUPT,RAVENNA WATER DEPARTMENT OH6703214 Ohio Community 16,000
RAVENNA CITY PWS OH6703211 Ohio Community 16,000
DUBLIN, CITY OF OH2504112 Ohio Community 16,000
JACKSON CO. WATER COMPANY-WTP OH4002012 Ohio Community 15,984