AUTHORITY: Implementing and authorized by Sections 4 and 12(a) of the Environmental Protection Act [415 ILCS 5/4 and 5/12.2].ENVIRONMENTAL PROTECTION AGENCY
a) to identify the degree of CSO control appropriate for a specific community as mutually agreed to by discharger and Agency, and
b) to substantiate the appropriateness of the proposed control program under the scrutiny of the Board in a proceeding pursuant to 35 Ill. Adm. Code 306: Subpart D.
It is the intent of this policy that water quality investigations be no more extensive than is necessary: