1. a) A State or NPDES permit must include a plan for surface drainage control as a condition.
2. b) The applicant's plan for surface drainage control must be incorporated into a permit by reference if it meets the standard of Section 405.102(a); otherwise, the Agency must deny the permit or issue it with a modified plan.
3. c) Mining activities and depositing mine refuse must be planned and conducted so as to avoid contact or interference with waters of the State that could reasonably cause water pollution.
4. d) Stream diversion, redirection or impoundment must not be undertaken when the Agency demonstrates that there is an economically reasonable alternative.

(Source: Amended at 43 Ill. Reg. 11606, effective September 25, 2019)