Leachate-collection and associated leachate-removal systems shall be:(1) constructed of materials that are chemically resistant to the leachate expected to be generated;(2) of sufficient strength and thickness to prevent collapse under the pressures exerted by overlying wastes, waste cover materials, and by any equipment used at the landfill; and(3) designed and operated to function through the scheduled closure and post-closure care period of the landfill considering the following factors:(A) estimated rate of leachate removal;(B) capacity of sumps;(C) pipe material and strength, if used;(D) pipe network spacing and grading, if used;(E) collection sump materials and strength;(F) drainage media specifications and performance; and(G) demonstration that pipes and perforations will be resistant to clogging and can be cleaned.