Oken Property Vegetation Maintenance

The project involves vegetation management along Coleman Creek in Rohnert Park, California, to improve stormwater flow and support riparian habitat restoration. Work is focused on two specific areas: a 100-foot section of the stream channel where native willow and invasive Himalayan blackberry will be selectively thinned and removed while preserving the existing tree canopy, and a nearby culvert threatened by blackberry encroachment that could obstruct storm flow. Activities include limbing mature trees, removing dead vegetation, and cutting blackberry canes at ground level to create a “tunnel effect” for unimpeded water passage, all while adhering to best management practices to prevent soil disturbance, tree mortality, or expansion of existing land use. The effort is designed to enhance natural hydrologic function within the riparian corridor without altering the underlying land use or removing healthy or scenic trees. The project operates under a categorical exemption under Title 14, Section 15304 of the California Code of Regulations, which applies to minor alterations to land that do not result in significant environmental impacts. It is not subject to federal acquisition regulation clauses, and no formal solicitation number, contract value, or standard contract type is specified, indicating a non-competitive, locally administered action. Performance is limited to the designated project sites within Rohnert Park, with inspection and acceptance conducted on-site by the Sonoma County Agricultural Preservation and Open Space District. Contact for the project is Monica Delmartini, Stewardship Specialist, and administrative oversight is provided by Sheri Emerson and other county staff. No detailed payment, invoicing, or contractor certification requirements are outlined, and the procurement is classified as a forecast with electronic submission handled via email and digital signature. The sole attachment referenced is a map for illustrative purposes only, with no formal delivery schedule or performance period defined beyond the project's environmental scope.