"Abandoned cemetery" means an area of land containing more than 6 places of interment for which, after diligent search, no owner of the land or currently functioning cemetery authority objects to entry sought pursuant to this Section, and (1) at which no interments have taken place in at least 3 years; or (2) for which there has been inadequate maintenance for at least 6 months.
"Diligent search" includes, but is not limited to, publication of a notice in a newspaper of local circulation not more than 45 but at least 30 days prior to entry and cleanup of cemetery grounds by the corporate authorities of a municipality. The notice shall provide (1) notice of the corporate authorities' intended entry and cleanup of the cemetery; (2) the name, if known, and geographic location of the cemetery; (3) the right of the cemetery authority or owner of the property to deny entry to the corporate authorities upon written notice to those authorities; and (4) the date or dates of the intended cleanup.
"Inadequate maintenance" includes, but is not limited to, the failure to cut the lawn throughout a cemetery to prevent an overgrowth of grass and weeds; the failure to trim shrubs to prevent excessive overgrowth; the failure to trim trees so as to remove dead limbs; the failure to keep in repair the drains, water lines, roads, buildings, fences, and other structures of the cemetery premises; or the failure to keep the cemetery premises free of trash and debris.
65 ILCS 5/11-49-1