Wonder Lake Dredging 2015
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

Lake user's need to be aware at all times of the presence of the dredge, dredge pipeline, and other dredging related equipment on the lake. The approximate location of the pipeline, and pipeline crossing points can be found here LINK. In addition, the area of Party Bay available for mooring has been defined by buoys as shown here LINK. The WLPD Marine Patrol will be making sure that lake user's in Party Bay stay within the designated mooring area.


Based on the experiences of the Memorial Day weekend, it has been determined that having the dredging sediment pipeline extended across the mid-section of the lake during the summer boating season is not advisable. 

As a result, the dredging schedule has changed.  The dredge has now been moved to the south end of South Bay, where it will operate for the majority of the Summer 2016 boating season.  Once completed with South Bay, the dredging schedule will be updated, as to how and when they will finish Wickline Island, O’Brien Shoals, and West Bay.

Lake user’s operating anywhere in South Bay near Highland Shores, Sunrise Ridge, Wonderview and St. Francis Heights will need to be extremely vigilant of changing conditions. Please review the updated dredging plan exhibit below to familiarize yourself with the new conditions. The boat crossing shown is intended for those needing access to / from the main body of the lake from West Bay, or the west side of South Bay.

The MPOA continues to work with the dredging contractor to have them routinely maintain their marking of the sediment pipeline and designated crossing points. Again, the MPOA asks for everyone’s cooperation in having a safe summer boating season.



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.