Ill. Admin. Code tit. 35, § 616.445 - Inspection Requirements

a) 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) Synthetic liners and covers must be inspected to ensure tight seams and joints and the absence of tears, punctures, and blisters; and
2) 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) During operation, a surface impoundment must be inspected weekly and after storms to detect evidence of any of the following:
1) Deterioration, malfunctions, or improper operation of overtopping control systems;
2) Sudden drops in the level of the impoundment's contents;
3) Severe erosion or other signs of deterioration in dikes or other containment devices; or
4) A leaking dike.

Notes

Ill. Admin. Code tit. 35, § 616.445
Amended at 47 Ill. Reg. 7631, effective 5/16/2023

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