The North Bay Water Reuse Program

Welcome to the North Bay Water Reuse Program website. This is a regional water recycling and management initiative covering 315 square-miles in the portions of Marin, Sonoma and Napa counties that surround the northern rim of the San Francisco Bay.

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The NBWRP is a coordinated effort of 10 municipal, water and sanitation agencies working together to address water supply shortages from a watershed perspective by investing in diverse projects that offset potable demand throughout the region.

From its inception in 2002, the Program has used a multiple-benefit approach – how to best serve the region’s urban, agricultural and environmental needs – to recycled water supply planning and has applied this from both the watershed and sub-regional perspective.  By implementing recycled water projects from this perspective, projects provide community benefits in two fundamental ways; each project reflects the priorities and needs of each agency, while concurrently, and incrementally, contributing toward water supply reliability water users throughout the region.

The North Bay counties face long-term water supply challenges, existing surface and groundwater supplies are stretched to their limits. By providing a reliable recycled water supply we are able to serve the region’s diverse needs and help maintain the area’s high quality of life.

We’ve planned for treatment, storage, distribution and water management projects to meet the broadest possible end-user needs and in doing so; have yielded significant value for the region’s infrastructure investment.  Examples of these multiple-benefit projects include:

  • Traditional community landscape applications,
  • Year-round agricultural water supply,
  • Support and management of groundwater basins,
  • Riparian, wetland, waterfowl, aquatic habitats and other environmental benefits and,
  • Community recreation and open space amenities.

The NBWRP has two phases.  Phase 1 has been under construction for five years and is comprised of $104 million in projects.  It is at 75% completion and includes foundational infrastructure for treatment, storage and distribution.  Phase 1 projects deliver high-quality water for parks and landscaping, premium wine grape production and restoration of tidal wetlands and wildlife habitat.

Phase 2 is Underway

Phase 2 is in the planning stage and is estimated at $130 million in projects.  These projects will build on Phase 1 infrastructure by increasing storage and distribution, groundwater management, environmental and community benefit projects – all by providing high-quality recycled water throughout the North Bay.

When fully implemented, Phase 1 and 2 will yield over 30,000 AFY of recycled water. These diverse projects will maximize regional-scale recycling and water management opportunities to build long-term resiliency into the region’s water supply.

By working from a watershed perspective to develop and manage recycled water as new supply, the NBWRP serves as a model for how communities can work together to plan for self-sufficiency and in turn, gain supply reliability using recycled water to yield a variety of benefits.