35 Ill. Adm. Code 811.203
Design Period
Section 811
Section 811.203 Design
Period
The design period for all inert
waste disposal units shall be the estimated operating life of the unit plus a
minimum postclosure care period of five years. For landfills, other than those
used exclusively for disposing waste generated at the site, the minimum
postclosure care period, for the purposes of monitoring settling at the site,
shall be 15 years.