Frederick County Water Service Area (0)
| W-1 (Connected) |
| W-3 (1-3 Years) |
| W-4 (4-6 Years) |
| W-5 (7-10 Years) |
| Multi-Use (Private) |
| Existing Reservoir |
| Planned Reservoir |
| Planned Service (11-20 Years) |
| No Planned Service |
Frederick City Water Service Area (1)
| W-1 (Connected) |
| W-3 (1-3 Years) |
| W-4 (4-6 Years) |
| W-5 (7-10 Years) |
| Multi-Use (Private) |
| Existing Reservoir |
| Planned Reservoir |
| Planned Service (11-20 Years) |
| No Planned Service |
Frederick County Sewer Service Area (2)
| S-1 (Connected) |
| S-3 (1-3 Years) |
| S-4 (4-6 Years) |
| S-5 (7-10 Years) |
| Multi-Use (Private) |
| Planned Service (11-20 Years) |
| No Planned Service |
Frederick City Sewer Service Area (3)
| S-1 (Connected) |
| S-3 (1-3 Years) |
| S-4 (4-6 Years) |
| S-5 (7-10 Years) |
| Multi-Use |
| Planned Service (11-20 Years) |
| No Planned Service |
|