Protecting Our Wetlands
Preserving our futureDedicated to the stewardship, restoration, and expansion of wetlands and associated wildlife habitats by preserving our future through classroom and field education that inspires youngsters to become stewards of our wetlands.
Petaluma Wetlands Alliance
We support Shollenberger Park, Alman Marsh, Ellis Creek Wastewater Treatment property, and future wetland sites in the Petaluma River watershed. We work with local governments, environmental organizations, and other groups to educate the public about the ecology and value of wetlands.
Photography courtesy of Bob Dyer, Tim Fleming, Gerald Moore, Len Nelson, Thomas Reynolds and Ron Storey
About Petaluma Wetlands Alliance

What is PWA?
Petaluma Wetlands Alliance (PWA) was formed by a concerned group of citizens who banded together in the late 1990’s during the planning and construction of a new wastewater treatment plant in Petaluma, California. We work with schools, government agencies and environmental organizations to help preserve wetlands habitat.

What are Wetlands?
Wetlands are among the world’s most productive ecosystems, providing critical habitat for many plant and animal species. In essence, wetlands are the zones between the land and large bodies of water such as rivers, lakes, or oceans, where water tends to stand for prolonged periods of time. Swamps, marshes and bogs are all examples of wetlands.

How Can I Help?
We’re glad you asked! There are a number of ways you can support the PWA. Financial contributions are always welcome. Since we are a 501(c)(3) organization, your donation may be tax-deductible. If you like to meet and talk with people, check out our our docent program. Or, pick up a shovel and come help us remove invasive weeds as a volunteer.
Latest News
From the editors at Petaluma Wetland Alliance
Annual Picnic 2022
PWA held its 2022 annual picnic and meeting on Sunday, July 10th, under the redwoods at McNear Park. Several people expressed how good it felt to get together again, as many have either been inactive lately or doing work alone or just with one other person. The picnic...
Shollenberger’s Cliff Swallows under Adobe Creek Bridge
Cliff Swallow Image by Len Nelson By Mary Kadri Working my way through my bird monitoring education with PWA researcher, Len Nelson, I put aside my new fear of spiders to join him in counting cliff swallow nests under the Adobe Creek bridge at Shollenberger. (I...
Feather Fest Champion, Spring 2022
By Mary Kadri On May 7th, 2022 Sheryl Nadeau, long-time PWA docent and incredible all-around volunteer, pulled off another successful spring Feather Fest. Several dozen children attended, along with a parent or other adult, and were led in small groups by volunteers...
How You Can Help Right Now
