CLERK’S OFFICEOCT 2 6 2004Re: Proposed amendments to dissolved O~)~~T?s~f~-~I~ STATE OF ILUNOISDorothy Gunn, Clerk U IRc’ II ~ Illinois Pollution Control Board JJ \\ UJames R.
Thompson Center -
100 W.
Randolph St.
The current Illinois standard for
dissolved oxygen follows U.S.
Environmental Protection Agency guidelines and past scientific studies do not
support a lower standard.
At extremely low oxygen levels, fish kills result. As these stressors become intensified the~
ecosystem deteriorates. Thus, it sho...
Allowed
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