NOV 03 2004Re: Proposed amendments to dissblved oxygen standard (R04-25) STATE OF ILLINOISDorothy Gunn, Clerk j Pollution Control BoardIllinois Pollution Control BoardiJames R.
Thompson Center I
100 W.
Randolph St.
Therefore, the Illinois Pollution Control Board should reject the proposal to lower
dissolved oxygen standards.
Freshwater mussels and other aquatic macroinvertebrates are also
negatively affected by low dissolved oxygen.
In February 2004, over 150,000 residents in Aurora were recommended to boil their water. ~:::31
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