San Luis Obispo County Water Resources

Division of Public Works




Browse this site to learn about the County’s water resources. You'll also find information about flood control, major projects, hydrologic investigations, data collection, and many other topics.


Flood Control

  • A resource to help individuals and communities in San Luis Obispo County identify and address flooding problems.


Major Projects

  • Current ongoing projects within the county to improve and expand water storage, treatment, conservation, and delivery.


Water Quality Lab

  • Presents annual reports describing the quality of County provided drinking water.


Water Resources

  • Collects and monitors the County's water resources data by utilization of stream and rain gauges, well measurements, reservoir data, and other resources to support water resources planning efforts.


Real-Time Water Data

  • A network of stream and rain gauges linked via radio telemetry to providing real-time water data.


News and Information








  • Please be advised that the June Zone 1/1A Advisory Committee meeting has been cancelled. The next meeting is tentaivly scheduled for August 18.















  • The RWMG Lead Agency (Flood Control and Water Conservation District Board of Supervisors) adopted the IRWM Plan during its public hearing.



Frequent Downloads & Reports

Water Wise Landscaping Save Our Water

Mussel Prevention

Drought Information

Drought Update

Current Weather

Latest San Luis Obispo, California, weather

Quick Links

Flood Control and Water Conservation Zones

County Service Areas

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