Re: Proposed amendments to dissolved oxygen standard (R04-25)
Dorothy Gunn, ClerkIllinois Pollution Control Board C El yE DJames R.
Thompson Center ~K’S OFFICE
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. Robert Schanzel madethe following comments on behalf of the Illinois Chapter of the American Fisheries Society
regarding the proposal: “The Illinois Chapter of the American Fish...
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