Welcome to the official website for the Lake County Water Resources Department. The Lake County Water Resources Department works to restore, conserve, and advocate as stewards of Lake County's watersheds. Lake County hosts the largest natural lake in California and the oldest lake in North America, Clear Lake. 

To promote both an environmentally and economically sustainable watershed, the Water Resources Department is tasked with: Aquatic Plant Management, Aids to Navigation, Groundwater Monitoring, Flood Management, Lakebed Management, Highland Springs Recreation Area, Stormwater Management, Surface Water Quality Monitoring, and Environmental Education / Outreach.

 Contact our team today to learn more about our programs and projects in Lake County.

Frequently Used Applications/Forms

Lakebed Encroachment Permit

Contractors on Clear Lake

Highland Springs Hunting Permit

Highland Springs Property Usage Permit

Aquatic Plant Management Permit

Water Complaint Form