Regional Stormwater Management Committee
Overview
The cities and counties of Central Oregon have joined forces to protect local water resources from polluted urban runoff, to manage urban flooding, and to meet new state and federal regulatory requirements by developing comprehensive stormwater management guidance for the region. This new partnership provides opportunities to work more efficiently and effectively and to provide consistency and clout for the region. The first major project of the partnership was development of a regional stormwater management manual. The Central Oregon Stormwater Manual provides needed stormwater guidance for each participating jurisdiction, was funded primarily through jurisdiction contributions, and was coordinated by a committee of participating cities and counties and the Central Oregon Intergovernmental Council.
The Central Oregon Stormwater Manual Project
The Central Oregon Stormwater Manual adapts the best available stormwater management guidance from Oregon and Eastern Washington to create a reference for engineers, builders, and local government staff on the design and construction of runoff treatment and flow control facilities. The Best Management Practices (BMPs) that make up the core of the Manual are intended to comply with all federal and state regulations, are suitable to the unique climatic and hydro-geologic conditions of the region, and will protect both water quality and natural runoff patterns. In contrast to historic practice, non-underground injection methods of managing stormwater are encouraged and pre-treatment is required for water that is injected underground. The cities, counties, and COIC retained Otak, Inc. to develop the Central Oregon Manual.
Central Oregon Stormwater Manual now complete and available!
We have made separate pdf files of the chapters and some of the larger appendices, so that people can select whether or not to print them. Please click on the links below to view or print.
Cover and Table of Contents
Chapter 1 - Introduction
Chapter 2 - Basic Requirements
Chapter 3 - Drainage Submittal
Chapter 4 - Site Characterization
Chapter 5 - Hydrologic Analysis and Design
Chapter 6 - Water Quality
Chapter 7 - Flow Control
Chapter 8 - Conveyance
Chapter 9
- Erosion and Sediment Control Design
Chapter 10 - Source Control
Chapter 11 - Site Design and Low Impact Development
Chapter 12 - Maintenance Easement Tracts
Appendix 7A 1 - Plant Select
Appendix 7A 2 - Xeriscaping
Appendix 9A - Erosion and Sediment Control Design
Appendix 11A - Site Design A
Appendix 11A - Site Design
Appendix 11B - Low Impact Development
Appendix 12A - Maintenance
Revisions made to the Draft Manual as a result of public and stakeholder comments:
The Committee received numerous valuable comments from stakeholders between April 2 and May 1, 2007. A summary of changes made to the draft Manual as a result of stakeholder comments is available here:
Final Manual Modifications as a Result of Comments
The period for public and stakeholder comments on the draft Manual closed on May 1 and a final version has been completed. However, the Committee anticipates reviewing the Manual in spring 2008 to discuss needed revisions. If you would like to suggest needed revisions for that 2008 review please use the following form.
After clicking the link below, choose Save As and save the Word document to your computer. You can then add your comments to the document. When you have completed your comments, please send the form as an attachment to pchang@coic.org.
Click here to download the comment form
Public and Stakeholder Workshops
Public and stakeholder participation has been an integral part of the development of the Central Oregon Regional Stormwater Management Manual. The cities, counties and COIC will host a total of 3 public workshops to introduce and familiarize the community with the Manual and to gather feedback from interested parties. The first public workshop was held on June 1st in Redmond. The second workshop, during which we introduced the full draft manual and solicited public comments, occured on April 16, 2007 in Redmond. The third workshop, which will include hands-on application of the Manual to two example projects, will occur on June 29, 2007 in Redmond. Download the workshop flyer below and register soon to secure a spot.
COSM Workshop Flyer
The content of PowerPoint presentations from the first and second public workshops are available here:
PPT from first public workshop
PPT from second public workshop
Project Organization and Funding
The Cities of Bend, Redmond, Prineville, Madras, and Sisters, and Crook and Deschutes Counties provided oversight and funding for the regional manual project and the Central Oregon Intergovernmental Council (COIC) played the role of coordinating agency for the group. The Oregon Association of Clean Water also provided grants for the project. This Project is funded in part by the Oregon State Lottery through the Central Oregon Community Investment Board for the purpose of promoting economic and community development.
For More Information
Please contact Phil Chang, COIC Program Coordinator, with any questions about the project: (541) 548-9534.
