35 Ill. Adm. Code 725.244
Cost Estimate for Post-Closure Care
Section 725
Section 725.244Â Cost
Estimate for Post-Closure Care
a)Â Â Â Â Â Â Â Â The owner or operator of a hazardous waste disposal unit must
have a detailed written estimate, in current dollars, of the annual cost of
post-closure monitoring and maintenance of the facility in accordance with the
applicable post-closure regulations in Section 725.217 through 725.220,
725.328, 725.358, 725.380, and 725.410.
1)Â Â Â Â Â Â Â Â The post-closure cost estimate must be based on the costs to
the owner or operator of hiring a third party to conduct post-closure care
activities. A third party is a party that is neither a parent nor a subsidiary
of the owner or operator. (See the definition of "parent
corporation" in Section 725.241(d).)
2)Â Â Â Â Â Â Â Â The post-closure cost estimate is calculated by multiplying
the annual post-closure cost estimate by the number of years of post-closure
care required under Section 725.217.
b)Â Â Â Â Â Â Â Â During the active life of the facility, the owner or operator must
adjust the post-closure cost estimate for inflation within 30 days after each
anniversary of the date on which the first post-closure cost estimate was
prepared. The adjustment must be made 60 days prior to the anniversary date of
the establishment of the financial instruments used to comply with Section
725.245. For an owner or operator using the financial test or corporate
guarantee, the closure cost estimate must be updated for inflation within 30
days after the close of the firm's fiscal year and before submission of updated
information to the Agency as specified in Section 725.245(e)(5). Â The
adjustment may be made by recalculating the post-closure cost estimate in
current dollars, or by using an inflation factor derived from the annual
Implicit Price Deflator for Gross National Product as published by the U.S.
Department of Commerce in its Survey of Current Business as specified in
subsections (b)(1) and (b)(2). The inflation factor is the result of dividing
the latest published annual Deflator by the Deflator for the previous year.
1)Â Â Â Â Â Â Â Â The first adjustment is made by multiplying the post-closure
estimate by the inflation factor. The result is the adjusted post-closure cost
estimate.
2)Â Â Â Â Â Â Â Â Subsequent adjustments are made by multiplying the latest
adjusted post-closure cost estimate by the latest inflation factor.
c)Â Â Â Â Â Â Â Â During the active life of the facility, the owner or operator must
revise the post-closure cost estimate whenever a change in the post-closure
plan no later than 30 days after a revision to the post-closure plan that
increases the cost of post-closure care. If the owner or operator has an
approved post-closure plan, the post-closure cost estimate must be revised no
later than 30 days after the Agency has approved the request to modify the plan
if the change in the post-closure plan increases the cost of post-closure
care. The revised post-closure cost estimate must be adjusted for inflation as
specified in subsection (b).
d)Â Â Â Â Â Â Â Â The owner or operator must keep the following at the facility
during the operating life of the facility: the latest post-closure cost
estimate prepared in accordance with subsections (a) and (c) and, when this
estimate has been adjusted in accordance with subsection (b), the latest
adjusted post-closure cost estimate.