environmental
blue
bow
bund
causeway
croton
dam
dam overflow
dike
electric
electrical
electricity
energy
exterior
fall
flood
flow
flowing
foam
generator
hydro
hydro power plants
hydroelectric
irrigation
lake
landscape
levee
mist
nature
old
overflow
plant
power
public
renewable
reservoir
river
sewage
south
spillway
spray
stream
sunlight
sustainable
turbine
water
waterfall
weir
winter