- Board Sends to Second Notice Proposed Amendments to General Use Water Quality
Standards for Dissolved Oxygen
On November 15, 2007, the Illinois Pollution Control Board proposed amendments to Illinois’
dissolved oxygen (DO) general use water quality standards (35 Ill.
- The rulemaking proposal
is entitled Proposed Amendments To Dissolved Oxygen Standard 35 Ill.
- Otherwise, the Board’s proposal remains substantively unchanged from first notice.
- Additionally, the proposal designates stream segments
(approximately 8% of Illinois’ 71,394 general use stream miles) to receive “enhanced” numeric
dissolved oxygen standards to protect DO-sensitive fish and macoinvertebrate species present in
m...