Each entry on this page is placed under a heading that describes the principal activity of the agency or organization; note that many agencies and organizations fulfill several functions – especially educational ones – in addition to their principal activity. Under each heading, federal, state, and local agencies are followed by other organizations.

Water Quality

U.S. Environmental Protection Agency (EPA)

U.S. Army Corps of Engineers (USACE)

San Francisco Bay Regional Water Quality Control Board (SFBRWQCB)

Marin County Stormwater Pollution Prevention Program (MCSTOPPP)

Marin County Community Development Agency Environmental Health Services

Water Rights and Water Supply

State Water Resources Control Board (SWRCB)

Department of Water Resources (DWR)

Marin Municipal Water District

Soils, Geology, and Streamflow

U.S. Natural Resources Conservation Service

U.S. Geological Survey

California Geological Survey

Biological Resources

National Oceanic and Atmospheric Administration, National Marin Fisheries Service (NOAA Fisheries)

U.S. Fish and Wildlife Service (USFWS)

California Department of Fish and Game (CDFG)

California Native Plant Society, Marin Chapter

Marin Audubon Society

Point Blue Conservation Science

Tiburon Audubon Center

Richardson Bay Audubon Center and Sanctuary

Trout Unlimited, California Council

Planning and Habitat Protection and Restoration

San Francisco Bay Joint Venture (SFBJV)

San Francisco Estuary Project

Bay Conservation and Development Commission (BCDC)

California Coastal Conservancy

Friends of Five Creeks

North Bay Watershed Association

Marin Conservation League

Nature in the City

Ross Valley Flood Protection and Watershed Program

Save the Bay

Salmon Protection and Watershed Network (SPAWN)

Students and Teachers Restoring a Watershed (STRAW)

Open Space

Marin County Open Space District

San Anselmo Open Space Committee

Environmental Forum of Marin

Marin Art and Garden Center

Watershed Project


Fairfax Historical Society

Ross Historical Society

San Anselmo Historical Museum