Marin Water’s 19,800 acres of Mount Tamalpais watershed lands source the majority of the District’s water supply and support the region’s rich biodiversity. As stewards of the Mount Tamalpais Watershed, it is our duty to protect and manage these lands for the long-term benefit of the community and the environment. Our volunteer program provides opportunities for the community to contribute to preserving our water supply, protecting biodiversity and caring for our shared natural resources. From improving trails, restoring habitat, and protecting endangered species, we offer a variety of volunteer opportunities to match your skills, interests and availability. 

Subscribe to receive monthly volunteer opportunities email

Explore the options below and find out how you can get involved:

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Event registration

Sign up to participate in a Marin Water volunteer activity

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Calendar

View the schedule of upcoming volunteer events

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Permission slip

Submit the volunteer service agreement form

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Volunteer programs

Learn about the variety of ways you can get involved