There are three irrigation districts (the Quincy-Columbia Basin Irrigation District, the East Columbia Basin Irrigation District, and the South Columbia Basin Irrigation District) in the project area, which operate additional local facilities.
Es gibt im Projektgebiet drei Bewässerungsbezirke (den Quincy-Columbia Basin Irrigation District, den East Columbia Basin Irrigation District und den South Columbia Basin Irrigation District), die zusätzliche lokale Einrichtungen unterhalten.