- This event has passed.
Brewing Up Solutions: SAVe Our River’s Grasses
September 10, 2025 @ 5:30 pm - 7:00 pm

Brewing Up Solutions: SAVe Our River’s Grasses | Wednesday, September 10 from 5:30-7 p.m. at Azalea City Brewing (Palatka, FL)
Join St. Johns Riverkeeper’s SAVe Our River’s Grasses Expedition team for a local brew and timely discussion. The team will share their findings to date from the expedition, and discuss what we can do to restore the St. Johns’ submerged aquatic vegetation (SAV) with panelists who have worked closely with this issue.
Schedule
Casual Meet & Greet: 5:30 p.m.
SAV Talk: 6-7 p.m.
Panelists
Erich Marzolf | St. Johns River Water Management District
Erich Marzolf is the Director of the Division of Water Resources with the St. Johns River Water Management District. He oversees the District’s aquatic restoration and data collection programs. Erich earned a master’s degree and Ph.D. in Ecology from the University of California Davis where he studied subalpine lake ecology. Prior to joining the District in 1994 Erich was a scientist at Oak Ridge National Laboratory. Erich has served on the boards of the Florida Lake Management Society and the North American Lake Management Society.
Robert A. Mattson | Retired, St. Johns River Water Management District
Rob Mattson is retired after a 35-year career working for two of Florida’s Water Management Districts: as Biologist with the Suwannee River Water Management District (1988-2005) and Sr. Environmental Scientist with the St. Johns River Water Management District (2005-2022). Before that he worked for a small environmental consulting firm in the Tampa Bay area (1983-1988). Rob has a B.A. in Biology and M.S. in Zoology from the University of South Florida. He was certified as an Environmental Professional by the Academy of Board Certified Environmental Professionals and as a Certified Senior Ecologist by the Ecological Society of America. In 2022, Rob was honored by the Florida Lake Management Society with the Marjorie Carr Award, their highest award given for a lifetime of achievement in the management and protection of Florida’s aquatic resources.