Our two stream health programs focus on what lives at the bottom of streams (benthic macroinvertebrates) as indicators of water quality.

Use our excellent Creek Critters smartphone app to wade in and learn what lives in your stream – no training needed. Join or host a fun Creek Critters event with your community!

Our Water Quality Monitoring program trains volunteers (adults & families) to monitor 25-30 stream sites in 10 watersheds in Maryland & DC. Learn More & Become a monitor!

Are you a teacher interested in providing your students with a meaningful watershed educational experience? We offer stream science programs for schools.

Find out where our programs monitor and about the health of our local streams.