Gorge-Tillicum Community Association (GTCA)
began their monitoring in the spring of 2000 and has since
grown in numbers. Led by Anne Genuist, Steve Legg,
and Jack Sante, the group represents a diverse mix of
people working together as water stewards. They focus
their efforts on outfalls located along the Gorge waterway,
Colquitz River, and by the Tillicum Mall.