35 Ill. Adm. Code 724.674
Inspections
Section 724
Section 724.674Â Inspections
a)Â Â Â Â Â Â Â Â During construction or installation, liners and cover systems
(e.g., membranes, sheets, or coatings) must be inspected for uniformity, damage,
and imperfections (e.g., holes, cracks, thin spots, or foreign materials).
Immediately after construction or installation, liners must be inspected and
certified by a qualified Professional Engineer as meeting the requirements set
forth in Section 724.673. The certification must be maintained at the facility
as part of the facility operating record. After installation liners and covers
must be inspected to ensure tight seams and joints and the absence of tears,
punctures, or blisters.
b)Â Â Â Â Â Â Â Â While a drip pad is in operation, it must be inspected weekly
and after storms to detect evidence of any of the following:
1)Â Â Â Â Â Â Â Â Deterioration, malfunctions, or improper operation of run-on
and run-off control systems;
2)Â Â Â Â Â Â Â Â The presence of leakage in and proper functioning of leak
detection system.
3)Â Â Â Â Â Â Â Â Deterioration or cracking of the drip pad surface.
BOARD NOTE:Â See Section 724.672(m) for remedial action
required if deterioration or leakage is detected.