Preventing pollution from entering the watershed through marine debris education, trash cleanups, and inspiring behavioral change.
What we do on land affects the health of our watersheds and ocean. The Healthy Watersheds Initiative is changing people’s perspectives about litter and other sources of pollution. We help kids and adults understand that their ordinary, everyday decisions can improve the health of our watersheds, the San Francisco Bay and the entire Pacific Ocean. We advocate for policies to reduce the use of products like plastic bags and Styrofoam that too often end up in our waterways. We encourage “extended producer responsibility.” This strategy stops trash from entering our watersheds by requiring those who design, produce, or sell a product to minimize its environmental impact throughout the product’s life cycle.
Volunteer Cleanups
The Healthy Watersheds volunteer driven clean-ups engage and educate communities on reducing the amount of waste entering our creeks, ocean, and watersheds. Annual events such as Coastal Cleanup Day, Martin Luther King Jr. Day of Service, and Earth Day bring out thousands of volunteers from across the Bay Area to our shorelines and result in removal of hundreds, even thousands, of pounds of waste. We also hold cleanups in more ecologically sensitive areas, like riparian zones next to urban creeks and marshes, with smaller groups of dedicated volunteers. The Watershed Project’s involvement in local cleanups for two decades has generated a wealth of collected data on the amount and types of waste removed, a valuable resource for policy makers involved in trying to reduce pollution.
Check our events page to find upcoming cleanups.
Adopt-a-Block

Zero Waste Schools
The Watershed Project works with local schools to organize and maintain recycling and composting programs. We train staff and students to sort their cafeteria lunch waste in an effort to reduce carbon emissions and prevent waste from going into the landfill.
Creek Monitoring
Covid-19 Update: In order to keep our staff and volunteers safe, The Watershed Project is unable to conduct our monthly water quality monitoring of creeks across Contra Costa County. That being said, our effects have not halted but are merely shifting, and you can help contribute to our data! During this difficult time, it is important to be outside in a safe and healthy manner, and taking walks outside remains an approved activity within the shelter in place guidelines. If you live close to a creek or stream, we urge you to participate in our online community science activities, including observational creek monitoring! Please visit our Community Science page for all the details.
Citizen scientists collect critical water quality data and monitor the health of our local creeks and watersheds. The data they collect informs future restoration projects and environmental policy to build healthy watersheds. The Watershed Project trains and leads teams of interested volunteers in conducting monitoring projects in urban creeks across Contra Costa County.
The Watershed Project spearheads the Contra Costa Watershed Forum’s Creek Monitoring Subcommittee, leading a collaboration between community groups and agencies to establish a standardized water quality monitoring system that will be used throughout Contra Costa County. This project builds on The Watershed Project’s active riparian restoration projects in Contra Costa County, and our goal is to engage community members and train them to become citizen scientists. You can see the data we’ve collected so far in the Wildcat, San Pablo, Walnut, Grayson, and Marsh Creek Watersheds, thanks to the team at Water Reporter!
Monthly Monitoring Map: click below to learn about our water quality data!
Report Cards:
Learn about the health of your creek with our Water Quality Report Cards! Green indicates that a parameter is within the healthy range, red indicates that it is outside the healthy range, and yellow means that it is somewhere in the middle. There are report cards available from two water years: 2017-2018 and 2018-2019.
Lower San Pablo Creek Report Card 2017-18
Lower San Pablo Creek Report Card 2018-19
Upper San Pablo Creek Report Card 2017-18
Upper San Pablo Creek Report Card 2018-19
Wildcat Creek Watershed Report Card 2017-18
Wildcat Creek Watershed Report Card 2018-19
Walnut Creek Watershed Report Card 2017-18
Walnut Creek Watershed Report Card 2018-19
Upper Marsh Creek Report Card 2017-18
Upper Marsh Creek Report Card 2018- 2019
Rheem Creek Report Card 2018-19
Stormwater Monitoring Map:
See us at work!
Join The Watershed Project in the creek and learn about watersheds, ecology, water quality, creek critters, and how they are impacted by the urban areas around them in the Bay Area. For this 2019 project we partnered with Friends of Pleasant Hill Creeks and volunteers to do a benthic macroinvertebrate assessment and a trash assessment on nearby sections of Grayson Creek, part of the Walnut Creek Watershed.
Video by IAMFORDphotography.com
Our partners for our Water Quality Monitoring Program include:
Contra Costa College’s Biological Sciences Department
Contra Costa Flood Control District
Contra Costa Resource Conservation District
Contra Costa Watershed Program
Friends of Pleasant Hill Creeks
Friends of the Creeks
Friends of the Marsh Creek Watershed
Friends of Orinda Creeks
Save Mount Diablo
SPAWNERS
Trash Assessment
By conducting trash assessments with school groups and volunteers, we are helping Contra Costa and Alameda Counties fulfill their zero waste in surface waters requirement by 2022. The data collected also informs policy makers about where to target source reduction campaigns.
Resources
10 Ways to Reduce Plastic & Carbon – 10 easy ways you can be green at home.
Alameda County Plastic Bag Ordinance – Alameda County’s new plastic bag ordinances goes into effect on May 1st.
Universal Waste Disposal Guidelines – Universal guidelines to trash, recycling, and compost. Check your local waste management provider for additional items that can be diverted from the landfill.
Monthly plastic-free lifestyle challenge – Start a new habit each month with our guide to kicking the plastic habit.