Ill. Admin. Code tit. 35 § 302.404

Current through Register Vol. 49, No. 2, January 10, 2025

Section 302.404 - pH

pH must be within the range of 6.5 to 9.0 except due to natural causes, except for the South Fork of the South Branch of the Chicago River (Bubbly Creek), for which pH must be within the range of 6.0 to 9.0 except due to natural causes.

Ill. Admin. Code tit. 35, § 302.404

Amended at 39 Ill. Reg. 9388, effective 7/1/2015

Amended at 47 Ill. Reg. 4437, effective 3/23/2023