Public Water Systems
4,181 active water systems in OH.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| WHITEHOUSE VILLAGE | WHITEHOUSE, OH | 5,200 | 52 | Detected |
| MID-OHIO WSD WATER DISTRICT 1 | COLUMBUS, OH | 5,176 | 37 | Detected |
| NEW LEXINGTON | NEW LEXINGTON, OH | 5,161 | 147 | Clean |
| ERIE CO MARGARETTA DISTRICT | HURON, OH | 5,131 | 26 | Clean |
| BYESVILLE | BYESVILLE, OH | 5,104 | 528 | Detected |
| ST. CLAIRSVILLE, CITY OF PWS | ST. CLAIRSVILLE, OH | 5,097 | 262 | Detected |
| MUNROE FALLS CITY PWS | MUNROE FALLS, OH | 5,042 | 22 | Clean |
| CHAGRIN FALLS VILLAGE PWS | CHAGRIN FALLS, OH | 4,991 | 53 | Detected |
| WEST MILTON VILLAGE PWS | WEST MILTON, OH | 4,890 | 330 | Clean |
| OTTAWA VILLAGE | OTTAWA, OH | 4,863 | 561 | Detected |
| WELLINGTON VILLAGE PWS | WELLINGTON, OH | 4,802 | 79 | Clean |
| GREENE COUNTY EASTERN REGIONAL PWS | BEAVERCREEK, OH | 4,800 | 2 | Clean |
| NORTHWESTERN W AND SD - PORTAGE | BOWLING GREEN, OH | 4,776 | 13 | Detected |
| COLDWATER VILLAGE | COLDWATER, OH | 4,774 | 309 | Detected |
| EAST PALESTINE VILLAGE PWS | EAST PALESTINE, OH | 4,761 | 37 | Clean |
| JEFFERSON REGIONAL WATER AUTHORITY | MIAMISBURG, OH | 4,750 | 190 | Detected |
| MEDINA CO/SOUTHERN WATER DIST PWS | COLUMBIA STATION, OH | 4,708 | 2 | Detected |
| CRESTLINE VILLAGE | CRESTLINE, OH | 4,630 | 19 | Detected |
| OAK HARBOR VILLAGE | OAK HARBOR, OH | 4,615 | 22 | Clean |
| GREENFIELD VILLAGE PWS | GREENFIELD, OH | 4,600 | 39 | Clean |
| WEST JEFFERSON VILLAGE PWS | WEST JEFFERSON, OH | 4,488 | 29 | Clean |
| MID-OHIO WSD PLAIN CITY WTP | COLUMBUS, OH | 4,467 | 174 | Detected |
| WAVERLY CITY PWS | WAVERLY, OH | 4,433 | 79 | Detected |
| MONROE WATER SYSTEMS | LAINGS, OH | 4,334 | 60 | Clean |
| LEXINGTON VILLAGE | LEXINGTON, OH | 4,320 | 162 | Clean |
| ASHVILLE VILLAGE PWS | ASHVILLE, OH | 4,298 | 97 | Detected |
| MONTPELIER VILLAGE | MONTPELIER, OH | 4,280 | 30 | Detected |
| BELLAIRE PUBLIC WATER SYSTEM | BELLAIRE, OH | 4,278 | 340 | Detected |
| GEORGETOWN VILLAGE PWS | GEORGETOWN, OH | 4,243 | 8 | Detected |
| BLANCHESTER VILLAGE PWS | FAYETTEVILLE, OH | 4,243 | 95 | Detected |
| CLARK COUNTY PARK LAYNE PWS | SPRINGFIELD, OH | 4,221 | 25 | Clean |
| SHEFFIELD VILLAGE PWS | SHEFFIELD VILLAGE, OH | 4,165 | 20 | Clean |
| CINCINNATI VA MEDICAL CENTER | CINCINNATI, OH | 4,152 | 0 | — |
| SOUTH POINT VILLAGE | SOUTH POINT, OH | 4,133 | 87 | Detected |
| BLUFFTON VILLAGE | BLUFFTON, OH | 4,125 | 196 | Detected |
| WAYNESVILLE VILLAGE PWS | WAYNESVILLE, OH | 4,100 | 41 | Clean |
| SOUTHERN PERRY CO-CONGO | CORNING, OH | 4,029 | 59 | Clean |
| AQUA OHIO - MASURY | STRUTHERS, OH | 4,016 | 24 | Detected |
| CEDARVILLE UNIVERSITY | CEDARVILLE, OH | 4,000 | 40 | Clean |
| TRIHEALTH GOOD SAMARITAN HOSPITAL | CINCINNATI, OH | 4,000 | 0 | — |
| MINERVA VILLAGE PWS | MINERVA, OH | 4,000 | 101 | Clean |
| NEW LEBANON VILLAGE PWS | NEW LEBANON, OH | 3,995 | 48 | Clean |
| KETTERING HEALTH MAIN CAMPUS | HAMILTON, OH | 3,946 | 4 | — |
| WINTERSVILLE VILLAGE PWS | WINTERSVILLE, OH | 3,924 | 14 | Clean |
| BETHEL VILLAGE PWS | BETHEL, OH | 3,900 | 123 | Detected |
| NEWCOMERSTOWN VILLAGE PWS | NEWCOMERSTOWN, OH | 3,882 | 98 | Clean |
| SWANTON VILLAGE | SWANTON, OH | 3,855 | 89 | Detected |
| ELIDA VILLAGE | ELIDA, OH | 3,848 | 114 | Detected |
| YELLOW SPRINGS VILLAGE PWS | YELLOW SPRINGS, OH | 3,761 | 9 | Detected |
| MIAMI CO-CAMP TROY PWS | TROY, OH | 3,742 | 20 | Clean |