Attachment 1

Proposed text amendment to the Natural Resources and Cultural Assets Component of the Comprehensive Plan


Amendment #1  Page 1 - Introduction to the Natural Resources and Cultural Assets Component of the Comprehensive Plan

4th Full paragraph


This chapter incorporates as a freestanding document the Open Space and Critical Resources Plan originally adopted in 1992 as part of the Comprehensive Plan. [It is anticipated that it will also incorporate the Historic Preservation Plan being prepared by the Historic Preservation Committee.]


This chapter incorporates as part of the Comprehensive Plan the following freestanding documents: the Open Space and Critical Resources Plan adopted in 1992, the Historic Preservation Plan adopted in 2000, and the Stormwater Master Plan adopted in 2005.


Included in as Appendix A is the detailed Greenways Plan. The Mountain Protection Plan, prepared by the Mountain Protection Committee in 1996, and is Appendix B.  Tthe Open Space and Critical Resources Plan, the Historic Preservation Plan, and the Stormwater Master Plan are located under separate cover.


Amendment #2  Page 28 – Stormwater Management

1st Full paragraph


Urban and suburban development changes the nature of streams and drainage ways, and can result in increased flooding, loss of groundwater recharge, and water quality degradation. Pollutants present in urban and suburban runoff include: sediment, fertilizers, pesticides, heavy metals, bacteriological contaminants, and grease and oil, among others. Since 1980, the County has required development in an urban and urbanizing portion of the County known as the "stormwater detention area" to use facilities that detain storm water. The purpose of these measures is to protect downstream properties from excessive drainage, erosion, and flooding. As part of the process of In developing the Water Protection Ordinance, the County has been studying ied how the storm water program can be enhanced to be more comprehensive, to coordinate stormwater management within entire drainage basins, to incorporate water quality concerns, and to improve the design and maintenance of stormwater facilities. The Design Standards Manual currently under development will further refines County guidance on these matters.


To this end, the County has recently completed a Stormwater Master Plan for the County’s Development Areas.  The objectives of the Stormwater Master Plan are to (1) provide guidance for land use planning and neighborhood master planning that is based on the assessment and prioritization of water resources and (2) promote public and private stormwater solutions that are based on needs and opportunities at the watershed scale rather than relying solely on a site-by-site approach.


In developing the Stormwater Master Plan, assessments were conducted for streams within the Development Areas and information on habitat conditions, community values, and problem areas were gathered.  Information from the stream assessments was utilized to identify High-Value Stream Corridors.  This information is useful for land use and neighborhood planning, for prioritizing County capital projects for stream improvement, and for guiding the review of development proposals and the implementation of the Water Protection Ordinance.  To further assess stream conditions, selected High-Value Stream Corridors were monitored for biological integrity by the StreamWatch citizen monitoring program.  Stream Corridor Restoration Projects and Regional Stormwater Control Facilities were then identified.  Stream Corridor Restoration projects would improve existing stream corridors by repairing stream erosion, enhancing stream buffers, cleaning up dump sites, and repairing infrastructure problems.  Regional Stormwater Facilities are intended to treat areas with high impervious cover, help protect downstream High-Value Stream Corridors, and be integrated functionally and aesthetically with existing and future development patterns.  The Stormwater Master Plan aims to coordinate various Stormwater Programmatic Elements and contains Stormwater Actions Lists for each Development Area that includes prioritized stream restoration projects and prioritized regional facilities to be used in planning County capital watershed improvement projects and in coordinating private development activities.


Amendment #3  Page 30 – List of Strategies

Strategy:  Implement the Stormwater Master Plan programs and improvements in accordance with a funding strategy approved by the Board of Supervisors.


Strategy:  Amend the Water Protection Ordinance to incorporate stream management objectives based on stream assessment results, including providing stream buffers for pocket natural areas and community and private use trails, as designated in the plan.



Go to next attachment

Return to executive summary