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Ohio Tap Water Quality

EPA water quality data for 150 community water systems serving 2,682,910+ people in Ohio. Click any system to see violations, lead testing results, and a safety grade.

Cities in Ohio

ColumbusClevelandCincinnatiToledoAkronDaytonParma
CLEVELAND PUBLIC WATER SYSTEM CLEVELAND, OH · 1,308,955 people · Surface Water CLERMONT PUBLIC WATER SYSTEM BATAVIA, OH · 133,059 people · Surface Water BUTLER CO. WATER DISTRICT 2 PWS HAMILTON, OH · 116,572 people · Surface Water Purchased LIMA CITY LIMA, OH · 65,619 people · Surface Water HAMILTON PUBLIC WATER SYSTEM FAIRFIELD, OH · 62,447 people · Groundwater SPRINGFIELD CITY PWS SPRINGFIELD, OH · 60,680 people · Groundwater MIDDLETOWN CITY PWS TRENTON, OH · 51,229 people · Groundwater LAKEWOOD CITY PWS LAKEWOOD, OH · 50,942 people · Surface Water Purchased FAIRFIELD CITY PWS FAIRFIELD, OH · 44,907 people · Groundwater SOUTHWEST REGIONAL WATER DISTRICT HAMILTON, OH · 42,856 people · Groundwater ATHENS PWS ATHENS, OH · 32,725 people · Groundwater AQUA OHIO - ASHTABULA ASHTABULA, OH · 32,408 people · Surface Water BROWN COUNTY RURAL WATER RIPLEY, OH · 32,090 people · Groundwater BELMONT CO. SANITARY DISTRICT 3 PWS BARNESVILLE, OH · 26,822 people · Groundwater TATE-MONROE WATER ASSOCIATION PWS NEW RICHMOND, OH · 24,092 people · Groundwater OXFORD CITY PWS SOMERVILLE, OH · 24,000 people · Groundwater ADAMS COUNTY REGIONAL WD PWS WEST UNION, OH · 21,810 people · Groundwater ASHLAND CITY ASHLAND, OH · 20,648 people · Groundwater LE-AX REGIONAL WATER DISTRICT PWS ATHENS, OH · 19,311 people · Groundwater BEREA CITY PWS BEREA, OH · 18,789 people · Surface Water SALEM CITY SALEM, OH · 16,850 people · Surface Water DEFIANCE CITY DEFIANCE, OH · 16,494 people · Surface Water MONROE CITY PWS MONROE, OH · 15,600 people · Surface Water Purchased ASHTABULA COUNTY WATER SYSTEM JEFFERSON, OH · 14,757 people · Surface Water Purchased COSHOCTON PWS COSHOCTON, OH · 13,537 people · Groundwater GREENVILLE CITY PWS GREENVILLE, OH · 13,227 people · Surface Water BEDFORD CITY PWS BEDFORD, OH · 13,149 people · Surface Water Purchased TRENTON CITY PWS TRENTON, OH · 13,012 people · Groundwater LOVELAND CITY PWS LOVELAND, OH · 12,800 people · Groundwater EAST LIVERPOOL CITY EAST LIVERPOOL, OH · 12,586 people · Surface Water BUCYRUS CITY BUCYRUS, OH · 12,570 people · Surface Water CONNEAUT CONNEAUT, OH · 12,538 people · Surface Water WILMINGTON CITY PWS WILMINGTON, OH · 12,401 people · Surface Water URBANA CITY PWS URBANA, OH · 11,428 people · Groundwater WAPAKONETA CITY PWS WAPAKONETA, OH · 11,000 people · Groundwater GALION CITY GALION, OH · 10,453 people · Surface Water BUCKEYE WATER DISTRICT - OHIO RIVER WELLSVILLE, OH · 10,300 people · Surface Water ST MARYS CITY ST MARYS, OH · 9,356 people · Groundwater CLARK COUNTY NORTHRIDGE PWS SPRINGFIELD, OH · 8,874 people · Groundwater Purchased DELPHOS CITY DELPHOS, OH · 7,101 people · Surface Water MARTINS FERRY PUBLIC WATER SYSTEM MARTINS FERRY, OH · 6,980 people · Groundwater COLUMBIANA CITY PWS COLUMBIANA, OH · 6,727 people · Groundwater MILFORD CITY PWS MILFORD, OH · 6,700 people · Groundwater NELSONVILLE PWS NELSONVILLE, OH · 6,656 people · Groundwater MOUNT ORAB VILLAGE PWS MOUNT ORAB, OH · 6,607 people · Surface Water BARNESVILLE BARNESVILLE, OH · 6,500 people · Surface Water ANDOVER-CAMPLANDS WATER ANDOVER, OH · 6,009 people · Groundwater GENEVA CITY PWS GENEVA, OH · 5,924 people · Surface Water Purchased NEW CARLISLE CITY PWS NEW CARLISLE, OH · 5,800 people · Groundwater SUNDAY CREEK VALLEY WATER PWS MILLFIELD, OH · 5,451 people · Groundwater Purchased ST. CLAIRSVILLE, CITY OF PWS ST. CLAIRSVILLE, OH · 5,097 people · Surface Water CHAGRIN FALLS VILLAGE PWS CHAGRIN FALLS, OH · 4,991 people · Surface Water Purchased EAST PALESTINE VILLAGE PWS EAST PALESTINE, OH · 4,761 people · Groundwater CRESTLINE VILLAGE PWS CRESTLINE, OH · 4,525 people · Groundwater BELLAIRE PUBLIC WATER SYSTEM BELLAIRE, OH · 4,278 people · Surface Water GEORGETOWN VILLAGE PWS GEORGETOWN, OH · 4,243 people · Groundwater Purchased BLANCHESTER VILLAGE PWS FAYETTEVILLE, OH · 4,243 people · Surface Water CLARK COUNTY PARK LAYNE PWS SPRINGFIELD, OH · 4,221 people · Groundwater BLUFFTON VILLAGE BLUFFTON, OH · 4,125 people · Surface Water Purchased ELIDA VILLAGE ELIDA, OH · 4,109 people · Surface Water Purchased SHADYSIDE PUBLIC WATER SYSTEM BARNESVILLE, OH · 3,689 people · Groundwater WEST UNION PUBLIC WATER SYSTEM WEST UNION, OH · 3,670 people · Groundwater Purchased HICKSVILLE VILLAGE HICKSVILLE, OH · 3,600 people · Groundwater ATHENS CO., THE PLAINS S.D. 1 PWS MILLFIELD, OH · 3,276 people · Groundwater Purchased AQUA OHIO - VILLAGE OF JEFFERSON ASHTABULA, OH · 3,226 people · Surface Water Purchased NEW MIAMI VILLAGE PWS NEW MIAMI, OH · 3,200 people · Groundwater CARROLLTON VILLAGE CARROLLTON, OH · 3,055 people · Groundwater NEW BREMEN VILLAGE NEW BREMEN, OH · 3,034 people · Groundwater MINSTER VILLAGE MINSTER, OH · 3,025 people · Groundwater CLARK COUNTY GREEN MEADOWS 2 PWS SPRINGFIELD, OH · 3,008 people · Groundwater Purchased BRIDGEPORT PUBLIC WATER SYSTEM BRIDGEPORT, OH · 2,830 people · Groundwater Purchased LISBON VILLAGE WARREN, OH · 2,821 people · Groundwater COLUMBIA PARK WATER SYSTEM OLMSTED TWP, OH · 2,716 people · Surface Water Purchased NEW RICHMOND VILLAGE PWS NEW RICHMOND, OH · 2,698 people · Groundwater VERSAILLES VILLAGE PWS VERSAILLES, OH · 2,687 people · Groundwater LOUDONVILLE VILLAGE LOUDONVILLE, OH · 2,641 people · Groundwater BETHEL VILLAGE PWS BETHEL, OH · 2,620 people · Groundwater Purchased SABINA VILLAGE PWS SABINA, OH · 2,564 people · Groundwater WILLIAMSBURG VILLAGE PWS WILLIAMSBURG, OH · 2,490 people · Surface Water Purchased WAYNOKA REGIONAL WATER AND SEWER DIST SARDINIA, OH · 2,428 people · Surface Water ENON VILLAGE PWS ENON, OH · 2,415 people · Groundwater CRIDERSVILLE VILLAGE PWS CRIDERVILLE, OH · 2,410 people · Groundwater AQUA OHIO - MOHAWK PWS MASSILLON, OH · 2,376 people · Groundwater AYERSVILLE WATER AND SEWER DISTRICT DEFIANCE, OH · 2,372 people · Surface Water Purchased SPENCERVILLE VILLAGE SPENCERVILLE, OH · 2,261 people · Groundwater ARCANUM VILLAGE PWS ARCANUM, OH · 2,100 people · Groundwater SAINT PARIS VILLAGE PWS PIQUA, OH · 2,089 people · Groundwater MANCHESTER VILLAGE MANCHESTER, OH · 2,043 people · Groundwater BRADFORD VILLAGE PWS BRADFORD, OH · 2,000 people · Groundwater BURR OAK REGIONAL WATER DISTRICT MILLFIELD, OH · 1,994 people · Groundwater PEEBLES PUBLIC WATER SYSTEM PEEBLES, OH · 1,978 people · Groundwater Purchased NORTH LEWISBURG VILLAGE PWS NORTH LEWISBURG, OH · 1,850 people · Groundwater LEETONIA VILLAGE PWS NEW WATERFORD, OH · 1,833 people · Surface Water Purchased ROAMING SHORES VILLAGE PWS ROAMING SHORES, OH · 1,764 people · Surface Water Purchased ORWELL VILLAGE PWS ORWELL, OH · 1,660 people · Groundwater SOUTH CHARLESTON VILLAGE PWS LEBANON, OH · 1,660 people · Groundwater GLOUSTER PUBLIC WATER SYSTEM GLOUSTER, OH · 1,659 people · Groundwater Purchased UNION CITY VILLAGE PWS UNION CITY, IN · 1,650 people · Groundwater Purchased MECHANICSBURG VILLAGE PWS MECHANICSBURG, OH · 1,644 people · Groundwater POWHATAN POINT PUBLIC WATER SYSTEM POWHATAN POINT, OH · 1,592 people · Groundwater FELICITY VILLAGE PWS FELICITY, OH · 1,573 people · Groundwater CHAUNCEY CHAUNCEY, OH · 1,428 people · Groundwater BETHESDA PUBLIC WATER SYSTEM BETHESDA, OH · 1,382 people · Groundwater Purchased CATALINA MOBILE HOME PARK MIDDLETOWN, OH · 1,280 people · Groundwater NEW VIENNA VILLAGE NEW VIENNA, OH · 1,240 people · Groundwater NEW WATERFORD VILLAGE PWS NEW WATERFORD, OH · 1,238 people · Groundwater MALVERN VILLAGE PWS MALVERN, OH · 1,200 people · Groundwater ANSONIA VILLAGE PWS ANSONIA, OH · 1,174 people · Groundwater WINCHESTER PUBLIC WATER SYSTEM SEAMAN, OH · 1,052 people · Groundwater Purchased ANDOVER VILLAGE PWS ANDOVER, OH · 1,019 people · Groundwater SEVEN MILE VILLAGE PWS SEVEN MILE, OH · 1,000 people · Groundwater Purchased SARDINIA VILLAGE PWS SARDINIA, OH · 952 people · Groundwater Purchased NEW KNOXVILLE VILLAGE PWS NEW KNOXVILLE, OH · 946 people · Groundwater SEAMAN VILLAGE PWS SEAMAN, OH · 944 people · Groundwater Purchased HAMERSVILLE VILLAGE PWS HAMERSVILLE, OH · 925 people · Groundwater Purchased ALBANY VILLAGE PWS ALBANY, OH · 901 people · Groundwater Purchased NEW MADISON VILLAGE PWS NEW PARIS, OH · 892 people · Groundwater COOLVILLE VILLAGE PWS COOLVILLE, OH · 859 people · Groundwater Purchased NEY VILLAGE NEY, OH · 854 people · Groundwater SHERWOOD VILLAGE SHERWOOD, OH · 854 people · Groundwater WAYNESFIELD VILLAGE PWS WAYNESFIELD, OH · 831 people · Groundwater FLUSHING VILLAGE PWS FLUSHING, OH · 803 people · Groundwater Purchased WASHINGTONVILLE VILLAGE PWS WASHINGTONVILLE, OH · 801 people · Surface Water Purchased FAIRWAY TERRACE MHP PWS SPRINGFIELD, OH · 800 people · Groundwater WARSAW PWS WARSAW, OH · 782 people · Groundwater PERRYSVILLE VILLAGE PERRYSVILLE, OH · 735 people · Groundwater AQUA OHIO - TOMAHAWK UTILITIES STRUTHERS, OH · 715 people · Groundwater ROCK CREEK VILLAGE ROCK CREEK, OH · 667 people · Surface Water Purchased SHERWOOD FOREST MHP PWS WEST COVINA, CA · 578 people · Groundwater CLARKSVILLE VILLAGE PWS CLARKSVILLE, OH · 562 people · Surface Water Purchased NORTH HAMPTON VILLAGE PWS NORTH HAMPTON, OH · 538 people · Groundwater CHRISTIANSBURG VILLAGE PWS CHRISTIANSBURG, OH · 526 people · Groundwater GETTYSBURG VILLAGE PWS GETTYSBURG, OH · 513 people · Groundwater HARMONY ESTATES MOBILE HOME PARK SOUTH CHARLESTON, OH · 507 people · Groundwater JEROMESVILLE VILLAGE JEROMESVILLE, OH · 500 people · Groundwater ROLLING HILLS MOBILE HOME PARK DALLAS, TX · 500 people · Groundwater BRUNERSBURG WD - BRUNERSBURG PWS DEFIANCE, OH · 500 people · Surface Water Purchased CHRISTI WATER SYSTEM INC DEFIANCE, OH · 483 people · Surface Water Purchased JACKSONVILLE VILLAGE PWS JACKSONVILLE, OH · 481 people · Groundwater Purchased YORK TOWNSHIP WATER AUTHORITY PWS POWHATAN POINT, OH · 481 people · Groundwater Purchased INDIAN VILLAGE MOBILE HOME PARK MAUMEE, OH · 480 people · Groundwater TRIMBLE VILLAGE PWS TRIMBLE, OH · 480 people · Groundwater Purchased BROOKSIDE VILLAGE MHP PWS CORONA DEL MAR, CA · 475 people · Groundwater SUN VALLEY FAMILY CAMPGROUND HARROD, OH · 462 people · Groundwater HAYESVILLE VILLAGE HAYESVILLE, OH · 448 people · Groundwater CHATEAU ESTATES MHP PWS CINCINNATI, OH · 430 people · Groundwater BELMONT PUBLIC WATER SYSTEM BELMONT, OH · 400 people · Groundwater SOUTH VIENNA VILLAGE PWS SOUTH VIENNA, OH · 393 people · Groundwater CLARK COUNTY ROCKWAY PWS SPRINGFIELD, OH · 383 people · Groundwater Purchased BAILEY LAKES VILLAGE WEST SALEM, OH · 374 people · Surface Water Purchased