Helping Nature Store Our Water

Upper Santa Ana Integrated Regional Water Management Plan

The Integrated Regional Water Management Plan for the Upper Santa Ana River (IRWMP) was Initially adopted at a public hearing held on December 6, 2007 through the adoption of pdf Resolution No. 435 (345 KB) .  The 2020 IRWMP  update was reviewed by all agencies and adopted by the Conservation District Board on June 9, 2021 through the adoption of  pdf Resolution No. 588. (79 KB)  Links to those files are listed below:

 Historical documents can be found below: