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
Closures
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

August 15, 2018


    redInland Beaches - Swim Ban (no swimming)
                 Henry J. Paulus Park - Lake Zurich  
                  Glacier Park - Deep Lake                         
                  Bengson Park Boat Ramp - Round Lake 
   
               Prairie Crossing Beach-Leopold Lake

                                                                                                                    
                                                  
                yellow 

Inland Beaches - Swim Advisory 
                               
                                
                              
                            
                             
                                 
                                                       
                                             
                                              
                                          
                       
                                   


                                     
Lake Michigan Beaches  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
 green
 
 
Park Avenue Beach
green
 
   
Rosewood Beach
green
 
  
Waukegan North Beach
 green
Waukegan South Beach
 
green