CASE STUDIES
Lake Deeson
A targeted phosphorus inactivation program delivered lasting water quality improvements
THE CHALLENGE
Excess Sediment Phosphorus Degrades Water Quality
Lake Deeson is a 55-acre nutrient-impaired lake in Polk County, Florida, located in one of the nation’s fastest-growing regions. Increasing development has placed added pressure on local water resources, creating an urgent need for effective restoration strategies.
Excess phosphorus stored in lake sediments contributed to poor water quality, reduced water clarity, and conditions favorable for harmful algal blooms. Pre-treatment assessments estimated that approximately 2,500 pounds of bioavailable phosphorus would need to be inactivated to support long-term lake recovery.
Excess phosphorus stored in lake sediments contributed to poor water quality, reduced water clarity, and conditions favorable for harmful algal blooms. Pre-treatment assessments estimated that approximately 2,500 pounds of bioavailable phosphorus would need to be inactivated to support long-term lake recovery.
THE APPROACH
Permanently Binding Phosphorus in Lake Sediments
A restoration plan was developed using EutroSORB® G, a phosphorus-binding material designed to permanently lock excess nutrients within lake sediments and prevent future recycling into the water column.
Between September 2024 and March 2025, a total of 125,000 pounds of EutroSORB® G was applied to the lake. Water quality and sediment conditions were monitored before and after treatment to evaluate effectiveness and track long-term restoration progress.
Between September 2024 and March 2025, a total of 125,000 pounds of EutroSORB® G was applied to the lake. Water quality and sediment conditions were monitored before and after treatment to evaluate effectiveness and track long-term restoration progress.
Record Water Quality Improvements and Reduced Nutrient Release
The restoration program produced measurable reductions in nutrient availability while achieving record-setting water quality and clarity improvements.
2
,500
LBS OF TARGETED PHOSPHORUS INACTIVATION
230
%
INCREASE IN PERMANENTLY MINERALIZED PHOSPHORUS
RELATED CASE STUDIES
A targeted phosphorus management strategy dramatically improved water quality and reduced the conditions that drive harmful algal blooms.
An adaptive phosphorus management strategy reduced nutrient levels and improved water quality.
