Beach Advisory

Beaches Monitored from Memorial Day through Labor Day
From May to September, the Health Department's Lakes Management Unit samples Lake Michigan beaches 4 days a week. Beaches on inland lakes are tested biweekly. The water samples are tested for E coli bacteria, which are found in the intestines of almost all warm-blooded animals. While not all strains of E coli are the same, certain strains can make humans sick if ingested in high enough concentrations.
Swimcast Monitor
If water samples come back high for E coli (235 E coli/100 ml), the management body for the bathing beach is notified and a sign is posted indicating the beach closure. Additionally, since rain events tend to lead to elevated bacteria levels in the water column, the LMU advises that persons avoid swimming after a large rain event.

Note: Per the Illinois Swimming Code, there is no swimming at dog beaches.
Bacteria Levels 
 Flag  Status
 green Low Bacteria Levels, No Advisory
 yellow Elevated Bacteria Levels, Caution Swimming Advisory
 red High Bacteria Levels. No Swimming is Advised

Historical Data

See the Illinois Department of Public Health - Environmental Health online resource to view historical data.

National Weather Service Beach Hazards

Check for high wave/rip current warnings.

August 19, 2017


          The Lake County Health Department tested 15 licensed beaches on August 1. Results from all beaches were below the bacteria standards, meaning swimming is allowed.  Weekly tests of the beaches will continue through Labor Day and swim bans (no swimming) or advisories will be posted below under Inland Lake Beaches.
          While conditions have improved, the Health Department is still urging residents to be cautious about swimming in the lakes, as floating or sunken debris may be hazardous. The beach sampling is not necessarily representative of the entire lake system. Other sources of pollution may still be present, such as failing septic systems.  Residents can test their own lake water by picking up a bottle from the Health Department at 500 W. Winchester Road in Libertyville. The cost is $18/sample.
          Inland lake beaches (Swim Ban-no swimming) -
          (Bangs Lake) Lakeview Villa Assn. Inc.
          (Tower Lake) Tower Lake Beach

                         Inland lake beaches (advisory) -  None

     Beach  Status
     Forest Park Beach  green
    Illinois Beach State Park North Beach green
    Illinois Beach State Park Resort Beach green
    Illinois Beach State Park South Beach green
    Lake Bluff Dog Beach green
    Lake Bluff Sunrise Beach green
    Moraine Dog Beach green
    North Point Marina Beach green
    Nunn Beach (Great Lakes), Friday - Sunday only
    Park Avenue Beach
    Rosewood Beach
    Waukegan North Beach
    Waukegan South Beach