The Otter Lake Source Water Protection program is concurrently focused on improving the health of the lake to reduce water treatment costs and enhance the lake’s recreational value. It has resulted in measurable improvements to water quality and the elimination of some regulatory impairments.
Planning and assessment projects led by Northwater have culminated in the construction and implementation of in-lake and watershed treatments. State and federal funding, primarily through the Illinois EPA Section 319 program, has been leveraged to install practices such as shoreline stabilization, sediment basins and ponds, filter strips, grade control structures, and wetlands.
The construction program has encompassed over 200 individual water treatment practices, including thousands of feet of shoreline protection and 175 acres of invasive species removal and timber stand improvement and 400 acres of prairie restoration. To date, these projects have resulting in significant load reductions in sediment (>8,000 tons/yr), nitrogen (>25,000 lbs/yr) and phosphorus (>10,000 lbs/yr).
Northwater Consulting has served as the program manager and has provided a complete package of survey, engineering, design, and construction inspection services to support this initiative. Work continues and new phase of construction and monitoring is currently in progress.
We are happy to answer any questions you might have!