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Natural Resources

Russian River

The Natural Resource Division has a broad and diverse practice that can touch on nearly all aspects of natural resource management in Sonoma County.  The Division consists of a division manager, department program manager, department analyst, administrative aide, professional geologist and senior environmental specialists, with expertise in multiple disciplines including finance and administration, procurement, forestry, CEQA/NEPA, wetlands, rare species, botany, ecology, hydrology, and geology and hydrogeology.

 Public Project Environmental Review.  The Natural Resources Division is presently managing multiple,  complex, multi-year public projects that require significant work and oversight at all phases from NEPA/CEQA/Permitting through construction and post-construction mitigation monitoring.  It also performs environmental and permitting for maintenance and emergency repair projects.  In addition, we regularly provide environmental review support on a range of other public projects including the Sonoma County Airport, Central Landfill, various General Services projects, and support to other departments and agencies including Regional Parks, Ag+OS and Sonoma Water.

 Program Development through Grant Application and Management.  The Natural Resources Section is presently implementing various grant projects to advance County objectives in wildfire resiliency, water quality, geothermal energy, and habitat conservation planning.

 Riparian Corridor, Oak Woodland, Timberland Conversion Ordinances.  The Natural Resource Division assists in implementing (with the Planning Division) the Riparian Corridor and Timberland Conversion Ordinances as well as the recently adopted Oak Woodland Ordinance, including, processing zoning and use permits and assisting Code Enforcement in addressing violations of these ordinances. 

 Habitat Conservation Plan (HCP)/Natural Community Conservation Plan (NCCP).  The Natural Resources Division has been tasked with taking the lead in developing an HCP/NCCP for Sonoma County.  This multi-year effort will result in a streamlined permit process for endangered species reviews and a long-term conservation strategy and reserve system for species covered in the plan.

 Aggregate Resource Management (ARM) Program.  The Natural Resources Division manages all aspects of the County's ARM regulatory program, including inspection, compliance, permitting, coordination with the state's mining program (SMARA) as well as reclamation and restoration of former active sites. 

Geysers Geothermal Field.  The Natural Resources Division is the County lead for addressing permit and resource questions at the Geysers Geothermal Field and is involved with other efforts to advance renewable energy, especially new geothermal technologies in the County. 

 Stormwater and Water Quality Programs.  The County has significant and complicated regulatory obligations to the state and regional water quality control boards. Although substantive work is divided among various County departments, the County’s stormwater coordinator is the Natural Resources Division and provides overall program coordination and development, compliance assurance, reporting and monitoring, and grant management working closely with Code Enforcement on water quality complaints and Engineering and  Construction on best management practices and low impact development requirements.

 Sustainable Groundwater Management Act (SGMA) Program Support and Coordination. The Natural Resource Division geologist is the lead contact for Permit Sonoma to Sonoma Water and the Groundwater Sustainability Agencies (GSAs) for the three SGMA priority basins in the County where groundwater management plans are in active development.  We regularly present and provide technical support and are developing subprogram components (e.g. well databases) under subgrants with Sonoma Water. 

 Private Project Environmental Review Support. In any given year, the Natural Resource Division provides various levels of substantive technical review on private discretionary projects for groundwater, geology, biology (e.g. sensitive natural communities/species, wetlands), water resources (stormwater, water quality), forestry, and wildfire issues.

 Comprehensive Planning Project Support. The Natural Resources Division provides CEQA and substantive technical support for multiple comprehensive planning projects including the specific plans as well as more comprehensive ordinance development (e.g., oak woodland) and will be heavily involved especially with the various aspects of the General Plan update.  

Active Public Projects

Estero Trail Plan and Designation of Estero Trail Corridors and Associated Staging Areas Project

Draft Environmental Impact Report »
Official Notices » (PDF: 806 KB)

  • Notice of Preparation of Draft Environmental Impact Report
  • Notice of Public Scoping Meeting
  • AB 52 Project Notification

Bohemian Highway Bridge Replacement

Notice of Availability Draft Bohemian Highway Bridge over the Russian River Replacement Project Programmatic Section 4(f) Evaluation» (PDF: 179 KB)
Final Bohemian Highway Bridge over the Russian River Replacement Project Programmatic Section 4(f) Evaluation (PDF: 22.7 MB)
Notice of Availability for EIR» (PDF: 668 KB)
Draft Environmental Impact Report » (PDF: 8 MB)

  • Notice of Availability of a Draft Environmental Impact Report and Notice of Virtual Public Hearing

Meeting: May 17, 2022 Board of Supervisors »

    For questions on the EIR process contact: Jackson.Ford@sonomacounty.gov or by phone at (707) 565-8356

    Any other questions please see: Monte Rio Bridge Replacement »


    Notice of Exemption Lakeville Creek Restoration Project

    Notice of Exemption Lakeville Creek Restoration Project (PDF: 668 KB)


    Other Significant Environmental Impact Reports »


    Environmental Review Guidelines

    The Environmental Review Guidelines will assist applicants in determining when various studies are required for discretionary projects:


    California Environmental Quality Act (CEQA)

    The California Environmental Quality Act (CEQA) generally requires state and local government agencies to inform decision makers and the public about the potential environmental impacts of proposed projects, and to reduce those environmental impacts to the extent feasible. If a project subject to CEQA will not cause any adverse environmental impacts, a public agency may adopt a brief document known as a Negative Declaration. If the project may cause adverse environmental impacts, the public agency must prepare a more detailed study called an Environmental Impact Report (EIR). An EIR contains in-depth studies of potential impacts, measures to reduce or avoid those impacts, and an analysis of alternatives to the project. A key feature of the CEQA process is the opportunity for the public to review and provide input on both Negative Declarations and EIRs.