Waukesha County


Please check here as you prepare your trip to the beach. Water quality, swimmer's itch, and weather may all be factors in your beach planning.

Muskego Park Beach is OPEN UNDER ADVISORY

Menomonee Park Beach is OPEN UNDER ADVISORY

Always consider that weather conditions can change quickly.

Beaches Switch to Swim At Your Own Risk (no lifeguards on duty).
See the SAYOR time frame at each park below:
  • Menomonee Park: 8/15 - 10/7
  • Muskego Park: 8/17 - 10/7
  • Naga-Waukee Park: 8/21 - 10/7
  • Fox Brook Park: 8/27 - 9/3
  • Mukwonago Park: Current - 10/7
  • Minooka Park: Current - 10/7

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Beach Water Testing 2018

Water quality samples are taken Monday mornings for every location; weekend and rainfall sampling are suspended for the remainder of the 2018 swim season.

Beaches are closed and signage will be posted when a sample has an E. coli count greater than 1000. An additional sample will be taken immediately and the beach will reopen only when a count is below 1000.

Beaches are under "Advisory" if a sample has an E. coli count over 235, "Advisory" signage will be posted. An additional sample will be taken immediately and the beach advisory will remain in place until the E. coli level is reported to be less than 235 cfu/100mL. "Advisory" is in effect when counts exceed the EPA’s good water quality guidelines, but does not warrant closing the beach at that time.

Testing is based on E. coli colonies per 100ml

< = Less Than > = Greater Than ns = No Sample
Sample Date Fox Brook Menomonee Minooka Muskego Mukwonago Naga-Waukee
10/2 NS 387 158 >770 NS 5.0
9/24 NS 62.0 11.0 16.0 122 4.0
9/20 NS 88 119 770 770 < 1.0

Park Hours: Sunrise to 10pm (Year-Round)
Daily Entrance Fee: $5 per car | $22 per bus
Park System Office
515 W. Moreland Blvd. Rm AC 230 Waukesha, WI 53188
Business Hours: M-F, 8-4:30 pm (excluding Holidays)
Phone: (262) 548-7801 | Fax: (262) 896-8071
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