Upper Santa Ana River Integrated Regional Water Management Plan
The Integrated Regional Water Management Plan for the Upper Santa Ana River (IRWMP) was adopted at a public hearing held on December 6, 2007 through the adoption of pdf Resolution No. 435 (345 KB) . The District and partner agencies are in the process of updating the IRWMP; the final Upper Santa Ana IRWMP documents can be found below:
- Executive Summary pdf (1.04 MB)
- Chapters 1-9
- Appendices A pdf (4.30 MB)
- Appendices B
- Appendices C
- Appendices D
- Appendices E
- Appendices F
- Appendices G
- Appendices H
- Appendices I
- Appendices J