Revised Water ‘On’ Dates Have Changed for the Mattawa Area

The South Columbia Basin Irrigation district's water 'on' season will officially begin March 2nd for Mattawa and the Potholes area of Franklin County

Blocks 1,2 and 3 will commence March 18th. Locations in the district that rely on pumps to irrigate will be available by March 30th.

Land Owners can contact their local Watermaster to find out their specific water delivery dates.