Helping Nature Store Our Water

Upper Santa Ana River 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 Resolution No. 435.  The 2020 IRWMP update was reviewed by all agencies and adopted by the Conservation District Board on June 9, 2021, through the adoption of Resolution No. 588.  Links to those files are listed below:

Historical documents can be found below:

What's New

Latest Documents

Select Toggle Title Date
Default 9 22 2023 DFR ( pdf, 131 KB ) (10 downloads)
pdf 9 21 2023 DFR ( pdf, 131 KB ) (12 downloads)
pdf Wash Plan Natural Resource Management Plan 2023 ( pdf, 14.46 MB ) (8 downloads)
Default 9 20 2023 DFR ( pdf, 505 KB ) (17 downloads)
Default 9 19 2023 DFR ( pdf, 505 KB ) (25 downloads)

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