The San Marcos River Rangers are volunteers trained as citizen scientists to conduct scientific data collection at 15 sites along the San Marcos River.
The oldest monitoring group in the state, the River Rangers have collected and tested water quality samples bi-monthly for 20 years, monitoring the health of the river and alerting city and county officials to potential problems.
SMRF has also provided local teachers with grant money to start their own water quality testing programs with middle and high school students.
For more information about becoming a River Ranger contact Rachel Sanborn.
