Water Systems
| Water System | Service Area | People Served | Contaminants detected |
|---|---|---|---|
ME Medina Co/Northwest Pws | Medina County, OH | 46,324 | 23 |
AQ Aqua Ohio - Marion | Marion County, OH | 46,317 | 25 |
FA Fairfield City Pws | Butler County, OH | 44,907 | 27 |
DE Delaware City Pws | Delaware County, OH | 44,740 | 30 |
HU Huber Heights Public Water System | Montgomery County, OH | 43,439 | 30 |
SO Southwest Regional Water District | Butler County, OH | 43,108 | 18 |
LA Lake County East Water Subdistrict | Lake County, OH | 40,656 | 25 |
PO Portsmouth Public Water System | Scioto County, OH | 40,475 | 28 |
LA Lancaster City Pws | Fairfield County, OH | 40,400 | 22 |
WE Western Water Company | Warren County, OH | 40,000 | 14 |