35 Ill. Adm. Code 302.203
Offensive Conditions
Section 302
Section 302.203Â Offensive
Conditions
Waters of the State must be free
from sludge or bottom deposits, floating debris, visible oil, odor, plant or
algal growth, and color or turbidity of other than natural origin. The allowed
mixing provisions of Section 302.102 must not be used to comply with the
provisions of this Section.