Wonder Lake Dredging
Dredging in White Oaks Bay
Lake users are encouraged be to extra cautious to avoid pipeline.
No-wake boating is required at all times within close proximity of the dredging areas
470,000 cubic yards of sediment will be removed from the lake...
The removed sediment will be enough to cover a football field 26 stories high
Dredging Wonder Lake will create an additional 100 acres of deeper, cleaner water
Photos taken by Bob Schell
Wonder Lake SDF — November 13, 2016
Wonder Lake SDF — November 13, 2016

Lake user’s on Wonder Lake need to be aware of current lake conditions, relative to the on-going dredging operations. After experiencing a break-down of the booster pump from encountering large rock at O’Brien Shoals, the dredge has moved back down to South Bay for the summer. Lake user’s are encouraged to avoid South Bay, and are encouraged to use extreme caution when operating anywhere in the south half of the lake, or near the sediment pipeline.


Please note that all of South Bay (as shown on the dredging status map at the bottom of this page) has been designated as “No-Wake” until all South Bay dredging operations have been completed. This is being done to prevent lake user conflicts with the on-going dredging operations. The Nippersink Creek inlet on the west end of West Bay, has also been designated as “No-Wake”. The Wonder Lake Marine Patrol will be monitoring both these areas for violations of these No-Wake restrictions.

All lake users are strongly encouraged to avoid the west side of the lake, south of South Bay, to avoid conflicts with the dredging equipment, and to only use the designated pipeline crossing at its mid-point at a No-Wake speed, utilizing your tilt mode, if applicable. No-Wake speed should also be used anywhere within 100 feet of the dredging equipment and pipeline anywhere on the lake.

Lake users should also be aware that in the day-to-day dredging operations, the location, alignment, and bending of the sediment pipeline can change quickly, so it is critical to be aware of changing conditions.

The MPOA will post additional info on the MPOA website as we receive it


WELCOME to the Master Property Owners Association (MPOA) in Wonder Lake, Illinois 60097. The MPOA owns and manages Wonder Lake, a private 830 acre recreational lake located northwest of Chicago. The MPOA office is located at 7602 Hancock Drive, at the northwest corner of Hancock Drive and E. Wonder Lake Road, roughly two miles north of IL Route 120. Do you have a question about the Lake, or need information about the Wonder Lake area? E-mail: office@wlmpoa.org, Phone: (815) 653-1000


 NEW  LATEST UPDATE → Lake Managers Report

• Read about the History of Wonder Lake's Restoration
• EROSION CONTROL BARRIERS: Read 2012 Notice to Lake Users


You can take boat safety classes online, at anytime: Boater Exam.com, and Boat-Ed.com are fast and easy and certification cost is $29.95. Persons at least 12 years of age and less than 18 years, without an Adult are required to have a certificate.


Lake users are reminded that MPOA Lake Use Decals MUST be permanently affixed to the watercraft / snowmobile / ATV  to which they are registered, and that they are NOT transferable. The Wonder Lake Police Department Marine Patrol is provided with a list of all MPOA Decal registrants, and the specific type and description of the unit each decal number was issued to. Failure to have your MPOA decal permanently affixed is a ticketable offense.

  • Zero Horsepower (canoe,kayak,rowboat,pedal boat) $10.00
  • 1-39 Horsepower $20.00
  • Over 40 Horsepower and ALL PWC $40.00
  • Winter- $5.00


• Senate Bill 3434 allows for the seizure of a watercraft used in the commission of certain offenses related to operating under the influence. The new rules bring penalties for boating under the influence more in line with those for operating a motor vehicle while impaired by drugs or alcohol. 

• Senate Bill 3433 requires all persons born after Jan. 1, 1998 to take and pass a boating safety course validated by the Illinois Department of Natural Resources and hold a valid boating safety certificate before they can operate a motorboat with an engine over 10 horsepower.

• Senate Bill 2731, mandates that the operator of any watercraft that is towing a person, such as a water skier or tuber, must display a bright orange flag measuring not less than 12 inches per side. The flag must be displayed from the time the person to be towed leaves the boat until that person returns to the boat at the conclusion of the activity. 
Under the law, flying the flag for purposes other than towing is prohibited, so be sure to only display the flag when towing.

Pipeline position