Regular Meeting

CITY OF DELAFIELD MEETING AGENDA LAKE WELFARE COMMITTEE Chair: Mike Hausman Members: Chris Arndt, Greg Domino, Jerry Dunnick, Jim Ellsworth, Gayle Gabors ky, Travis Manard, Susan McVey, Ald. Paul Price, Sarah Reardon, Andrew Vrakas Office: (262) 646-6220 - E-Mail: clerksoffice@cityofdelafieldwi.gov – cityofdelafieldwi.gov July 8, 2026 6:00 PM City Hall, Council Chambers 500 Genesee St. Regular Meeting 1. Call to Order 2. Pledge of Allegiance 3. Roll Call 4. Special Orders of Business Discussion and action on the following items: A. None 5. Approve the following meeting minutes: A. June 10, 2026 Regular Meeting 6. Citizen Comments 7. Unfinished Business Discussion and possible action on the following items: A. “Welcome to the Lake” Program B. Wakesurfing Recommendations, Notifications, Communicator Article C. Erosion / Storm Runoff from East Side of Nagawicka Lake D. Aerators E. Nagawicka Lake Water Level and No-Wake Rules 8. New Business Discussion and possible action on the following items: A. DELC 0788.020, 1407 Milwaukee Street. Owner: Daniel Hurrle. Applicant: Kevin Enright, K2 Structures, LLC. Applicant requests approval to remodel an existing boathouse. B. Aquatic Plant Management Post-Treatment Inspection Report C. Annual Lake Awareness Meeting Date, Location, Agenda 9. Requested Future Agenda Items 10. Correspondence 11. Lake Welfare Committee Meeting Dates and Deadlines A. Regular Meeting: August 12, 2026 B. Regular Meeting Submittal Deadline: August 1, 2026 12. Adjournment All meetings of the Lake Welfare Committee are public meetings. The meeting of the Committee is a working session for the Committee itself, and, outside of the Citizens Comments section, discussion by those in attendance is limited to Committee members, staff and others that may be a party to the matter being discussed. CITY OF DELAFIELD MEETING AGENDA LAKE WELFARE COMMITTEE Chair: Mike Hausman Members: Chris Arndt, Greg Domino, Jerry Dunnick, Jim Ellsworth, Gayle Gabors ky, Travis Manard, Susan McVey, Ald. Paul Price, Sarah Reardon, Andrew Vrakas Office: (262) 646-6220 - E-Mail: clerksoffice@cityofdelafieldwi.gov – cityofdelafieldwi.gov AMERICANS WITH DISABILITIES ACT NOTICE: Upon reasonable notice (at least 72 hours in advance) the City will furnish appropriate auxiliary aids and services when necessary to afford individuals with disabilities an equal opportunity to participate in and to enjoy the benefits of a service, program or activity provided by the City. NOTICE OF POSSIBLE QUORUM: It is possible that members of and possibly a quorum of members of other governmental bodies of the municipality may be in attendance at the above-stated meeting to gather information: no action will be taken by any governmental body at the above-stated meeting other than the governmental body specifically referred to above in this notice. Clerk: CC Posted: 07/01/2026 X City Hall Bulleting Board X Website X Notified Media 1 Mike Hausman From: Tom Hafner Sent: Wednesday, May 20, 2026 5:27 PM To: Paul Price; Mike Hausman Cc: Tim Aicher; Sean Heinzel; Aaron Koch Subject: [External] Slow-No-Wake Mike and Paul, We have good daily lake level data readily available going back to November of 2005. So, that’s nearly 20 years and seven months of data. In that Ɵme, following is a record of when the 10” slow-no-wake would’ve been in place and when a proposed 8” water level would’ve triggered the slow-no-wake order. The 10” level resulted in 3 slow-no-wake events in the past 20+ years. The 8” level would’ve resulted in 5 slow-no-wake events in that same period. I color coded the three events that would’ve triggered slow-no-wake requirements regardless of a 10” or 8” water level restricƟon. It’s interesƟng to note that 3 of these 5 significant events have occurred in the past less than 4 years. Only two of the events occurred in the first almost 17 years of the data. Note the increased length of the slow-no- wake orders if we went to the 8” level, especially the two events that hit the 8” level but didn’t get to the 10” level. My main concern is that boaters would be complaining to open the dam more just for boaƟng purposes, during a Ɵme when opening the dam is causing significant flooding impacts to our neighbors downstream. It would heighten the tension between people upstream wanƟng the dam opened more and people downstream wanƟng the dam closed more. Let me know if you need any addiƟonal data on this for the Lake Welfare CommiƩee. Slow-No-Wake Order in effect at 10” above Max. PermiƩed Water Level 6/9/2008 – 6/14/2008 6 days 8/10/2025 – 8/17/2025 8 days 4/17/2026 – 4/23/2026 7 days Slow-No-Wake Order in effect at 8” above Max. PermiƩed Water Level 6/9/2008 – 6/16/2008 8 days 4/13/2013 – 4/24/2013 12 days 9/12/2022 – 9/19/2022 8 days 8/10/2025 – 8/19/2025 10 days 4/16/2026 – 4/26/2026 11 days Thanks ~ Tom Thomas J. Hafner, P.E., ICMA-CM City Administrator/Director of Public Works 500 Genesee Street • Delafield, WI 53018 Phone: (262) 303-4626 Fax: (262) 646-6223 thafner@cityofdelafieldwi.gov cityofdelafieldwi.gov • LinkedIn 1 Mike Hausman Subject: FW: [External] Nagawicka Treatment From: Lakeland Bio, Kyle Schmit Sent: Wednesday, June 17, 2026 9:04 AM To: Tom Hafner Subject: Nagawicka Treatment Hi Tom, Lake Nagawicka Post-Treatment Inspection Report A post-treatment inspection was conducted to evaluate the effectiveness of the 2026 aquatic plant management program targeting Curly-Leaf Pondweed (CLP) and Eurasian Watermilfoil (EWM). Overall, all treatment areas were highly successful. Both Curly-Leaf Pondweed and Eurasian Watermilfoil have been effectively controlled throughout the treated portions of the lake. Below are some key takaways. Bark River Inlet The Bark River inlet is now dominated by native Elodea, which has become the primary aquatic plant species present. Targeted invasive species control was successful, and the remaining vegetation provides beneficial fish and wildlife habitat while maintaining water quality. Gazebo Bay Historically, Gazebo Bay has supported dense growths of both Eurasian Watermilfoil and Curly-Leaf Pondweed. During this inspection, no Eurasian Watermilfoil was observed, which is an excellent indication that the management program continues to suppress this invasive species. The Curly-Leaf Pondweed that was present earlier in the season is now dead and has largely broken down, leaving the bay in significantly improved condition. Hammerhead Bay Hammerhead Bay has been restored to a navigable waterway following treatment. While some native Sago Pondweed remains present, both Curly-Leaf Pondweed and Eurasian Watermilfoil have been successfully controlled. The remaining native vegetation is beneficial and does not currently impede navigation. Summary The 2026 treatment program has provided excellent control of both Curly-Leaf Pondweed and Eurasian Watermilfoil. Native plant communities are becoming more prevalent in several areas, particularly within the Bark River inlet, while historically problematic areas such as Gazebo Bay and Hammerhead Bay have shown substantial improvement. Continued monitoring will ensure invasive species remain at manageable levels and that native plant communities continue to recover. Thank you, 2 Kyle Schmit Lead Biologist Lakeland Biologists, LLC 262-522-2822 Office 262-527-6010 cell www.lakelandbiologists.com Follow Us