Hydrological Unit: Lower Susquehanna
| HUC | Name |
|---|---|
| 0205030601 | South Branch Conewago Creek |
| 0205030602 | Upper Conewago Creek |
| 0205030603 | Bermudian Creek |
| 0205030604 | Little Conewago Creek |
| 0205030605 | Lower Conewago Creek |
| 0205030606 | South Branch Codorus Creek |
| 0205030607 | Codorus Creek |
| 0205030608 | Chickies Creek |
| 0205030609 | Cocalico Creek |
| 0205030610 | Little Conestoga Creek |
| 0205030611 | Conestoga River |
| 0205030612 | Pequea Creek |
| 0205030613 | Muddy Creek |
| 0205030614 | East Branch Octoraro Creek |
| 0205030615 | Octoraro Creek |
| 0205030616 | Deer Creek |
| 0205030617 | Susquehanna River |