« Back

Beach Monitoring

If using a MOBILE DEVICE, click here.

From Memorial Day to Labor Day, the Environmental Health Laboratory Technicians monitor beach water quality to ensure the health and safety of swimmers.

The lab tests for coliform bacteria, including E. coli, which can be
harmful to health when ingested by humans and pets. If there are
high levels of E. coli, itis likely that fecal matter is in the water, which
may carry harmful bacteria, viruses, and other organisms that can
cause illness.

We test the following beaches:
  • Bayshore Park
  • Sunset Beach Park
  • Duck Creek Quarry
  • Ashwaumbomay Lake
Beach Water Quality Reports
Before entering the beach, you will see a sign posted. Be sure to look at it because it will tell you if the beach is safe to swim in. See below for the tree safety levels and recommendations according to the WI Department of Natural Resources:

SAFE: The beach is safe to swim in.
ADVISORY: Swimming in the water could make you sick. Swim at your own risk.
CLOSED: The E. coli concentration is too high to be considered safe for swimmers. Do NOT swim in the water.
Blue-green algae (cyanobacteria) can produce
poisons that can make people and animals sick.
If you notice that the water appears, green, blue,
red, or brown and looks foamy, do not swim or
drink the water. When in doubt, stay out.