| Powdermill Reservoir | |
|---|---|
 Powdermill Reservoir, East Sussex, April 2012 | |
  Powdermill Reservoir Powdermill Reservoir shown within East Sussex | |
| Location | Sedlescombe, East Sussex |
| Coordinates | 50°56′53″N 0°33′43″E / 50.948°N 0.562°E |
| Type | reservoir |
| Basin countries | United Kingdom |
| Water volume | 1,060 megalitres (860 acre⋅ft) |
Powdermill Reservoir lies to the east of Sedlescombe, East Sussex, England. The reservoir provides water for Southern Water customers.