September 2025 newsletter

News from MPOA President Brad Dennison — Yacht Club is removing buoys October 4th Time for everyone to be careful when enjoying late season boat rides! Thank you to the volunteers from the Yacht Club for taking the time to put the safety buoys in and remove them each season. Protect Wonder Lake’s Shoreline The MPOA has invested millions of dollars in dredging Wonder Lake and thousands more installing rip rap to safeguard the islands. These efforts are vital—but they only go so far if individual shorelines remain unprotected.

Lake Manager’s Report – August 2025

1. The annual state required inspection of the Wonder Lake Dam and Sediment Drying Facility this fall has now been scheduled for October 2nd, 2025. 

2. The Nippersink Creek USGS stream gage at Thompson Road upstream of Wonder Lake recorded just under four inches of rain in the last month. The gage also showed the corresponding “spikes” in streamflow from the rainfall events, as shown below in the second chart. Nippersink streamflow into the lake today is at roughly 20 cubic feet per second (cfs), which is still below the 30-year average of 30 cfs for this date. 

Lake Manager's Report — July 2025

1. The MPOA soils committee is exploring using some of the proceeds from a pending SDF sediment sale to create a shelter at the SDF in which harvested sediment could be processed, kept dry, and available for future sales. 

2. A proposal to conduct our annual state required inspections of the dam and Sediment Drying Facility this fall has been received and approved. The proposal amount is the same as it was in 2024. The inspections are tentatively scheduled for early October 2025. 

July 2025 newsletter

A note from our Lake Manager Randy Stowe — The moderate drought across northern Illinois continues with less than two inches of rain recorded locally in the last month at the USGS stream gage on Nippersink Creek at Thompson Road up to yesterday. The volume of Nippersink stream flow coming into Wonder Lake currently is at only 12.4 cubic feet per second (cfs), while the long-term average for this time of year is 42 cfs; roughly a 70% decrease. USGS stream gage information for precipitation, discharge and stage is available below. 

June 2025 newsletter

!! We still need FIREWORKS DONATIONS !! 
Volunteers have been out on both sides of the lake every Saturday morning and we’re still short! Rather donate online? No problem! Click the donate button. Thanks in advance for contributing to a great show! 

REMINDER: The MPOA office will be closed July 4-6th. Please pick up your decals prior to the holiday!

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