On September 18, 2014, the Board adopted a first notice opinion and order for proposed water quality standards for the Chicago Area Waterway System (CAWS) and Lower Des Plaines River (LDPR) that are necessary to meet the aquatic life uses for those waterways. The proposal is docketed as In the Matter of: Water Quality Standards and Effluent Limitations for the Chicago Area Waterway system and Lower Des Plaines River: Proposed Amendments to 35 Ill. Adm. Code 301, 302, 303, and 304, R08-9(D).
Board Proposes Water Quality Standards in the Chicago Area Waterways System and
Lower Des Plaines River Subdocket DOn September 18, 2014, the Board adopted a first notice opinion and order for proposed waterquality standards for the Chicago Area Waterway System (CAWS) and Lower Des Plaines River(LDPR) that are necessary to meet the aquatic life uses for those waterways.
Therefore, the Board proposed the CSSC a numeric standard of
620 mg/L as an acute water quality standards and 990 mg/L as a chronic water quality standardfor chloride from December 1 until April 30.
The Board seeks additional input from participants on these issues.
Public comments must be filed with the Clerk ...
Allowed
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