Surface Water

Good pool habitat Wachter 4 looking upstream

S U R F A C E   W A T E R S

Surface waters are freshwater streams, wetlands, ponds lakes and their vegetated riparian buffers. CWU protects water quality and quantity by ensuring adequate flows for native fish and wildlife, and reducing nutrient and temperature pollution caused by livestock access, lack of riparian vegetation and other land use activities. Brackish waters of estuaries, lagoons, saltwater marshes and coastal wetlands are also considered surface waters that provide transition habitat to the marine environment. 

In some watersheds, surface flows are captured to provide drinking water through local Island water providers.


(Factsheets coming soon!)


  • Crow Valley Stream Corridor Restoration
  • Fish Trap Creek Culvert Replacement 
  • Bayhead Creek Culvert Replacement

San Juan:


San Juan:

San Juan County Clean Water icon