Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 302 - WATER QUALITY STANDARDS
Subpart E - LAKE MICHIGAN BASIN WATER QUALITY STANDARDS
Section 302.503 - pH
Universal Citation: 35 IL Admin Code ยง 302.503
Current through Register Vol. 48, No. 38, September 20, 2024
pH must be within the range of 7.0 to 9.0, except due to natural causes, in the Open Waters of Lake Michigan as defined at Section 302.501. Other waters of the Basin must be within the range of 6.5 to 9.0 except due to natural causes.
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