Aliso Creek Reports and Studies

• Land Use Map, Drainage & Elevation Map

Welcome to OC Watershed's Reports and Studies Section. We will continue to update this section to keep you informed of activities and progress within the Aliso Creek watershed.

The Aliso Creek Watershed Chapter presents a planning framework to identify the most significant water quality issues related to urban runoff sources that can addressed at a multi-jurisdictional watershed-scale, to focus jurisdictional pollution prevention and source control programs on local constituents of concern, to identify treatment control opportunities, to incorporate prior data from planning studies, to identify indicators to track progress, and ultimately to develop an integrated plan of action that results in meaningful water quality improvement in the Aliso Creek Watershed. Click on the following link to access the Aliso Creek Watershed Chapter.

Watershed Studies

• Aliso Creek Stakeholder Meeting Presentation: August 26, 2010

Aliso Creek Feasibility Scoping Documentation:

• Aliso Creek Feasibility Scoping Documentation Volume 1 Please note file size is 47MB, download will be slow. For your convenience the documents are also available in separate sections below:
  • Volume 1:
    • Cover Page
    • Table of Contents
    • Executive Summary
    • Chap 1 Introduction
    • Chap 2 Without Project Conditions
    • Chap 3 Plan Formulation
    • Chap 4 Summary of Coordination
    • Chap 5 References
    • Appendix A Hydrology and Hydraulic Appendix
    • Appendix B Geotechnical
    • Appendix C Without Project Economic Analysis
• Aliso Creek Feasibility Scoping Documentation Volume 2 Please note file size is 47MB, download will be slow. For your convenience the documents are also available in separate sections below:
  • Volume 2:
    • Appendix A EDR Data Map
    • Appendix B Biological Resources
    • Appendix C Cultural Resources
    • Appendix D Public Comments and Baseline Environmental Conditions and Future Project Conditions Report
    • Aliso Creek Mainstem Ecosystem Restoration Baseline Environmental Conditions and Future Without Project Conditions Report Report
• Aliso Creek Watershed Management Study: Feasibility Phase October 2002
• Aliso Creek - Watershed Management Plan

Watershed Program Review

• Aliso Creek Watershed Study - Lessons Learned Report

Aliso Creek Concept Plan Report February 2007

• Aliso Creek Concept Plan Report DRAFT
• Aliso Creek Concept Plan Report DRAFT APPENDICES
• Aliso Creek Concept Plan Report Technical Review