35 Ill. Adm. Code 616.445
Inspection Requirements
Section 616
Section 616.445Â Inspection
Requirements
a)Â Â Â Â Â Â Â Â During construction and installation, liners must be inspected
for uniformity, damage, and imperfections (e.g., holes, cracks, thin spots, or
foreign materials). Immediately after construction or installation:
1)Â Â Â Â Â Â Â Â Synthetic liners and covers must be inspected to ensure tight
seams and joints and the absence of tears, punctures, and blisters; and
2)Â Â Â Â Â Â Â Â Soil-based and admixed liners and covers must be inspected for
imperfections including lenses, cracks, channels, root holes, or other
structural non-uniformities that may cause an increase in the permeability of
that liner or cover.
b)Â Â Â Â Â Â Â Â During operation, a surface impoundment 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
overtopping control systems;
2)Â Â Â Â Â Â Â Â Sudden drops in the level of the impoundment's contents;
3)Â Â Â Â Â Â Â Â Severe erosion or other signs of deterioration in dikes or
other containment devices; or
4)Â Â Â Â Â Â Â Â A leaking dike.