35 Ill. Adm. Code 741.135
Allocation Factors
Section 741
Section 741.135Â Allocation
Factors
In determining proportionate
shares under this Part, the Board will consider any or all factors related to
the degree to which the performance or costs of a response result from a
person's proximate causation of or contribution to the release or substantial
threat of a release. These factors include the following:
a)Â Â Â Â Â Â Â Â The volume of regulated substances or pesticides for which
each person is responsible;
b)Â Â Â Â Â Â Â Â Consistent with the provisions of 35 Ill. Adm. Code 742 and
the remediation of the site in a manner consistent with its current and
reasonably foreseeable future use, the degree of risk or hazard posed by the
regulated substances or pesticides contributed by each person;
c)Â Â Â Â Â Â Â Â The degree of each person's involvement in any activity that
proximately caused or contributed to the release or substantial threat of a
release of regulated substances or pesticides; and
d)Â Â Â Â Â Â Â Â Any other factors relevant to a person's proportionate share.