I ~ N0V092004Re Proposed amendments to dissolved oxygen ta ~ Ii STATE OF lLL~NOISDorothy Gunn, Clerk 0 Ut~onControl BoardIllinois Pollution Control BoardJames 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. hi February 2004, over 150,000 residents in Aurora were recommended to boil their water. ~
13 Mr.
Allowed
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