Location: Washington, DC

a group of people bend over to pick up trash along a path

Another Project Clean Stream Kickoff Means More Trash Removed from the Bay

On Friday, April 4, 2025, we kicked off our 23rd season of Project Clean Stream (PCS)! Thank you to all of our dedicated volunteers and partners who helped us kick off the season.

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a person smiles while picking up trash along a bike path

Project Clean Stream Returns for Another Season!

Every year, thousands of volunteers come together to pick up trash from local streams, creeks, rivers, parks, and neighborhoods as part of the Alliance’s Project Clean Stream.

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a group of people walk into a movie theater

Thank you for another great Wild & Scenic Film Fest!

Thank you to everyone who joined us from March 4-6 across the watershed for the Alliance’s 5th Annual Wild & Scenic Film Festival!

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DC Citizen Science Water Quality Monitoring Training – Virtual

Become a Water Quality Monitoring Citizen Scientist and gain hands-on experience collecting data and water samples throughout the District!

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DC Citizen Science Water Quality Monitoring Training – In-Person

Become a Water Quality Monitoring Citizen Scientist and gain hands-on experience collecting data and water samples throughout the District!

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Project Clean Stream Kick Off – Washington, DC

Join the Alliance for the Chesapeake Bay on Friday, April 4th for a Project Clean Stream kick-off event in Washington, DC! This season we will be cleaning up Oxon Cove Park, located at 6411 Oxon Hill Rd, from 10-12 PM. What is provided: Gloves, trash bags, & some light snacks. What to bring: A full …

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Two people smile while doing garden maintenance in a yard

Discounted RiverSmart Maintenance Available for DC Residents!

Do you live in the Anacostia watershed? The Alliance is offering up to 75% off of maintenance for your installations!

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A closeup of a thermometer and water sample bottle sitting on a dock

Explore DC’s Waterways with the 2024 Water Quality Monitoring Report

The District of Columbia Citizen Science Water Quality Monitoring Report 2024 is out! The report covers key data and takeaways from citizen science monitoring from the 2024 season and gives insight into water quality near popular recreation sites across the District.

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Clean Water Starts Here

Another Year of Green Infrastructure Success in DC

The end of 2024 brings us to the close of another fabulous year of green infrastructure in Washington, DC! Cheers to the new year and the stormwater systems we hold dear.

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Wild & Scenic Film Festival – DC

Save the date for the 2025 Wild & Scenic Film Festival in DC!

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