the battle to be Chicago's most poop-filled beach 2015
Beach Season has ended.
A swim ban means that swimming is not allowed. Bans may be issued due to
unsafe conditions, following a massive rain event, or extremely high e-coli levels
The U.S. EPA suggests a swim ban for e-coli counts higher than 1000 CCE. Of the
37 days in which e-coli measurements
have exceeded that, bans have only been issued
21.6% of the time.
A swim advisory means that swimmers are advised to enter with caution.
The U.S. EPA suggests a swim advisory for e-coli counts higher than 235 CCE. Of the
days in which e-coli levels have exceeded this level (but have been under 1000), some sort of swim
restriction has only been issued 42.4%
of the time.