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San Diego River Citizen Science Surveys

During the twice a year RiverBlitz surveys, teams of citizen scientists survey the River in the City of Santee and San Diego for invasive plants, trash and site condition issues. We also partner with other organizations and survey more remote areas less frequently. This data is made available to the public and helps us to coordinate efforts to obtain a healthy, trash-free River through our advocacy, working with landowners, managers and agencies, and our award winning volunteer-based clean-up program. The surveys also track the quantities and types of trash entering the San Diego River from the watershed.


Fall of 2017

Details will be posted this summer

Learn more and sign-up by visiting our volunteer calendar!


Also, our River Assessment Field Team (RAFT) does weekly surveys year-round! Learn more by visiting our web calendar for additional details.

To learn more or to RSVP for any of our volunteer events:
Call (619) 297-7380 or email

See results of our most recent trash surveys on our data portal here.

Invasive plant and site condition data is available to view here.

How it Works:

  1. Surveys take place on Saturdays and Sundays in April and October each year.
  2. Teams are assigned to sections of the River each of which take about 2 -3 hours to survey. Teams are joined by a trained leader, so no experience is necessary.
  3. Surveys record non-native plants, trash, and park problems.
  4. Data is compiled into a State of the River Report which is available to the public.
  5. Data guides future clean-up events, projects and other actions.

Team Leader Training for the next surveys are held in March and September! Email to learn more and to sign up for the next training.

Visit our Online Information Center for additional infomation.



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