Storm Water Resource Plans

    In 2016 the Sonoma County Water Agency was awarded a $484,627 storm water planning grant from the State Water Resources Control Board’s Storm Water Grant Program. Water Agency staff along with other agencies and watershed partners are now working together to collaboratively develop Storm Water Resource Plans (SWRP) for the Petaluma River Watershed and the Sonoma Creek Watershed. Senate Bill 985 (Pavley, 2014) requires that in order for entities to be eligible for any future state funds from voter approved bond measures for storm water projects they must develop compliant Storm Water Resource Plans to guide project selection and implementation.


    What is a storm water resource plan? 

    A Storm Water Resource Plan (SWRP) is a non-regulatory, watershed based and stakeholder driven plan that builds on local storm water management objectives and identifies and prioritizes projects that capture, treat or reuse storm water runoff. These projects must provide at least two benefits which may include environmental enhancement, flood protection, groundwater recharge, water quality improvement or recreational opportunities.


    Southern Sonoma SWRP Partners:

    Led by the City of Ukiah, a Russian River Storm Water Resource Plan is being developed by the Russian River Watershed Association. The Water Agency is a collaborating partner.


    Public Draft

    The Southern Sonoma County Storm Water Resources Plan public review and comment period has now closed. Thank you to our partners and the public for providing a thorough review, and for all the thoughtful comments on the Plan. The document can be downloaded and viewed via this link:

    Southern Sonoma SWRP Public Draft

    The SWRP satisfies the requirements of SB 985 (Storm Water Resources Planning Act) and the State Water Resources Board Guidelines to establish eligibility for local agencies and organizations to receive funding from future State Storm Water Grant implementation funds.

    Sonoma Water would like to thank all of our collaborators for their participation and support during the development of the SWRP. Regional collaboration is on-going.  If you have questions or would like a future project considered for prioritization, please contact us. Forms are available below for project submittal.  

    Thank you for your interest and involvement!

    Email: Susan Haydon, Project Specialist,

    Phone: (707) 547-1937


    Submit a Project

    Please use this form to submit a multi-benefit project to be considered for inclusion in the Southern Sonoma SWRP. Projects must be submitted by Dec. 8th  for consideration. Helpful information can be found in the Storm Water Resource Plan Guidelines.

    Technical Advisory Committee (TAC) Meetings

    TAC meetings are open to the public

    TAC Meeting 4, January 17, 2018
    City of Petaluma Offices, 202 N. McDowell Blvd, Petaluma


    TAC Meeting 3, September 20th, 2017
    Valley of the Moon Water District Boardroom, 9:30-11:30AM


    TAC Meeting 2, July 26th, 2017
    City of Petaluma Offices, 10:00-12:00PM


    TAC Meeting 1, February 27th, 2017
    Joint kickoff for Southern Sonoma and Russian River SWRPs
    North Coast Regional Water Quality Control Board, 9:00-11:00AM


    Public Meetings

    • Tuesday, November 14, 2017
      • 5:30-7:00 PM
      • David Yearsley River Heritage Center, Petaluma
      • 100 E D St, Petaluma, CA 94952
      • Agenda
      • Presentation
    • Wednesday, November 15, 2017 - Meeting cancelled due to Flash Flood warnings
      • 5:30-7:00 PM
      • Sonoma Community Center
      • 276 E Napa St, Sonoma, CA 95476
      • Agenda

    Completed Grant Deliverables



    • Frequently Asked Questions
    • Storm Water Resource Plan Guidelines
    • Storm Water Resource Plan Checklist
    • Watershed Atlas: interactive map for the community to explore watershed-focused features of interest like sub-watershed boundaries, access points, and conservation and development projects within the Petaluma River watershed.
    • Contaminant Data Display and Download Tool (CD3): visualization tool for accessing water quality data for the San Francisco Bay-Delta and northern montane regions. It is the primary tool for accessing and downloading the San Francisco Bay Regional Monitoring Program’s (RMP) long-term dataset and other project data stored in SFEI's Regional Data Center (RDC). Data stored in SFEI’s RDC are comparable with the state’s data management business rules and are regularly exchanged with the California Environmental Data Exchange Network (CEDEN).
    • Sonoma Ecology Center Knowledge Base: library of local and regional information needed for science-based watershed management in the Sonoma Valley. Monitoring and mapping data, reports, images, and other resources can be discovered and downloaded in this online digital library.
    • CA Phase II LID Sizing Tool: web-based tool that assists stormwater practitioners in selecting and sizing LID Best Management Practices (BMPs) that meet the sizing requirements set forth in California’s National Pollutant Discharge Elimination System (NPDES) permit for stormwater discharges from small municipal separate storm sewer systems (MS4s)
    • International Stormwater BMP Database: International Stormwater Best Management Practices (BMP) Database project website features a database of over 600 BMP studies, performance analysis results, tools for use in BMP performance studies, monitoring guidance and other study-related publications


    For More Information:

    Subscribe to the Water Agency’s E-newsletter which provides updates on many important projects.

    Stay up to date with the Water Agency Events Calendar which will include important SWRP dates and check this website for public notifications.

    Please contact Susan Haydon at (707) 547-1937 or by emailing