77 Ill. Adm. Code 820.110
Water Supplies
Section 820
Section 820.110Â Water
Supplies
a)Â Â Â Â Â Â Â Â The water supply for drinking, showers, bathing, culinary
purposes and the swimming facility proper shall be obtained from a community
water system in compliance with the Illinois Environmental Protection Agency's
rules for Public Water Supplies, a non-community public water supply in
compliance with the Department's Drinking Water Systems Code, or a semi-private
water supply in compliance with the Department's Public Area Sanitary Practice
Code.
b)Â Â Â Â Â Â Â Â The water supply used for filling a swimming facility shall be
capable of providing enough water to raise the water level in the facility at
least 1 inch in three hours.