利水 is read as りすい (risui) and means irrigation.
りすい
risui
すいり
water transportation
りよう
use
りし
interest (on a deposit, loan, etc.)
りがい
advantages and disadvantages
りそく
interest (on a loan, deposit etc.)
りこう
well-behaved (esp. of children and pets)
きき
dominance (e.g. of left or right hand)
り
advantage
りさげ
decrease in interest rates
りまわり
interest
りようしゃ
user
りけん