35 Ill. Adm. Code 750.410
Phase I - Discovery or Notification Assessment
Section 750
Section 750.410 Phase I
− Discovery or Notification Assessment
a) A release may be discovered through:
1) Notification pursuant to a statutory requirement;
2) Investigation by government authorities;
3) Notification of a release by a Federal or State permit holder
when required by its permit;
4) Inventory efforts or random or incidental observation by
government agencies or the public;
5) Other sources.
b) If not reported previously, a release should be promptly
reported to IESDA at telephone number 217/782-7860. Any person in charge of a
vessel or facility should immediately notify IESDA as soon as he has knowledge
of a release (other than a State or federally permitted release) of a hazardous
substance from such vessel or facility in the amount equal to a greater than
the reportable quantity determined pursuant to Section 102(b) of CERCLA, as
amended (42 U.S.C. 9601 et seq.). IESDA shall convey the notification
expeditiously to IEPA and other appropriate government agencies.