35 Ill. Adm. Code 750.301
Response Operations
Section 750
Section 750.301 Response
Operations
a) The IEPA shall direct State Fund-financed response efforts and
coordinate all other State efforts at the scene of a discharge or release.
b) The IEPA shall, to the extent practicable under the
circumstances, collect pertinent facts about the discharge or release, such as
its source and cause; the existence of potentially responsible parties, the
nature, amount, and location of discharged or released materials; the probable
direction and time of travel of discharged or released materials; the pathways
to human exposure; potential impact on human health, welfare and safety; the
potential impact on natural resources and property which may be affected;
priorities for protecting human health, welfare and the environment; and
appropriate cost documentation.