Section 30.644 - Monitoring and Inspection(1) During construction or installation, liners and cover systems (e.g., membranes, sheets or coatings) shall be inspected for uniformity, damage and imperfections (e.g., holes, cracks, thin spots and foreign materials). Immediately after construction or installation: (a) Each synthetic liner and cover shall be inspected, using methods acceptable to the Department, to ensure tight seams and joints and the absence of tears, punctures and blisters; and(b) Each soil-based and admixed liner and cover shall be inspected for imperfections, including lenses, cracks, channels, root holes or other structural defects that may cause an increase in the permeability of the liner or cover.(2) While a waste pile is in operation, it shall be inspected weekly and also immediately after storms to detect evidence of any of the following:(a) Deterioration, malfunction, or improper operation of run-on and run-off control systems;(b) Proper functioning of wind-dispersal-control systems, where present;(c) The presence of leachate in leachate collection and removal systems; and(d) Proper functioning of leachate collection and removal systems.