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Historical documents can be found below: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

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Default 11 30 2023 DFR ( pdf, 132 KB ) (1 download)
Default 11 29 2023 DFR ( pdf, 132 KB ) (10 downloads)
Default 11 28 2023 DFR ( pdf, 132 KB ) (15 downloads)
Default 11 27 2023 DFR ( pdf, 132 KB ) (15 downloads)
Default 11 22 2023 DFR ( pdf, 115 KB ) (13 downloads)

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