Section 302.669  Listing of Derived Criteria

a)         The Agency shall develop and maintain a listing of toxicity criteria pursuant to this Subpart.  This list shall be made available to the public and updated periodically but no less frequently than quarterly, and shall be published when updated in the Illinois Register.

b)         A criterion published pursuant to subsection (a) may be proposed to the Board for adoption as a numeric water quality standard.

c)         The Agency shall maintain for inspection all information including, but not limited to, assumptions, toxicity data and calculations used in the derivation of any toxicity criterion listed pursuant to subsection (a) until adopted by the Board as a water quality standard.

(Source:  Added at 14 Ill. Reg. 2899, effective February 13, 1990)