OCT 29 2004Re: Proposed amendments to dissolved ~ ~ ri STATE OF ILLlNo~~—~j1/ ri~- ~7 ~ Ii PoIIut~onContrc~~3o~r~Dorothy Gunn, Clerk jI ~ Illinois Pollution Control BoardJames R.
Thompson Center
100W.
The current Illinois standard for
dissolved oxygen follows U.S.
Environmental Protection Agency guidelines and past scientific studies do not
support a lower standard.
Low dissolved oxygen levels in the Fox
River will also negatively impact fish species that spawn in late summer, and sportfish such as smallmouth bass aresens...
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