Advocating for Lake Owasso since 1941
We work to unite the Lake Owasso community in protecting the environmental health of the lake and creating an atmosphere of safe enjoyment for recreational pursuits.
2025 Treatment Renewal
We have initiated the 2025 aquatic plant treatment program for Lake Owasso. Check your inbox for your personal invitation to renew. Formal inspections indicate success with of the 2024 whole lake fluridone treatment in curbing Eursian Watermilfoil (EWM). …
Fluridone treatment updates for EWM
Whole lake fluridone treatment for control of EWM is planned for Thursday March 21st, 2024.

Aquatic Plant Survey results
On July 2nd 2024, Blue Water Science performed an extensive aquatic plant survey of Lake Owasso to document the native plant population. Owasso-R24-Plants-9-20-24-Revised-1Download
2022 Treatment summary
In 2022, Lake Management, Inc (LMI) was contracted by The Lake Owasso Improvement
Association (LOIA), to provide aquatic vegetation control services. This report details their 2022 actions and observations.
2022 LOA Annual Meeting
The LOA annual meeting was held Thursday, April 28th, 2022 at 7:00 pm via zoom. Video recording and PowerPoint presentation availble.
