We found 15 public water systems in Philadelphia county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Philadelphia Water Department | County of Philadelphia | 1,950,098 | 0 | 0 |
| Philadelphia Water Department | County of Philadelphia | 1,600,000 | 111 | 57 |
| Queen Lane Water Plant | Philadelphia | 535,000 | 0 | 0 |
| Belmont Water Treatment Plant | Philadelphia | 320,000 | 0 | 0 |
| Phila Naval Businesss Center | County of Philadelphia | 6,000 | 0 | 0 |
| Point Of Rocks Estates - Kardo | County of Philadelphia | 250 | 0 | 0 |
| Naval Home | County of Philadelphia | 245 | 0 | 0 |
| Schuylkill Center For Env Edu | County of Philadelphia | 100 | 0 | 0 |
| Naval Regional Medical Center | County of Philadelphia | 100 | 0 | 0 |
| Williamsburg Water Corp | County of Philadelphia | 84 | 0 | 0 |
| Aviation Supply Office Usn | County of Philadelphia | 76 | 0 | 0 |
| City Of Phila West Park | County of Philadelphia | 70 | 0 | 0 |
| Manatawana Farm | County of Philadelphia | 25 | 0 | 0 |
| Shadey Lane Picnic Area | County of Philadelphia | 25 | 0 | 0 |
| Capital Water | County of Philadelphia | 25 | 0 | 0 |