September 5, 2002IN THE MATTER OF:PROPOSED AMENDMENTS TO AMMONIA NITROGEN STANDARDS35 ILL.
At the second hearing IAWA offered additional testimony, and additional questions were asked of both IAWA and the Agency.
PROPOSAL DEVELOPMENT
The Board most recently considered its ammonia water quality regulations in Triennial Water Quality Review Amendments to 35 Ill.
All proposed changes are to 35 Ill.
Adm.
Tr.1 at 30-31. Modifications of the formulae for calculating total ammonia acute standard (AS) and chronic standard (CS) values are based on reevaluation of the ammonia toxicity mechanism, as well as the existence of larger and more...
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