Ill. Admin. Code tit. 35, § 811.509 - Leachate Collection Systems
a) The CQA officer shall exercise professional judgement to verify that pipe sizes, material, perforations, placement and pipe grades are in accordance with the design.
b) The CQA officer shall exercise professional judgement to certify that all soil materials used for the drainage blanket and graded filters meet the required size and gradation specifications in the design plan and are placed in accordance with the design plans.
c) The CQA officer shall inspect all prefabricated structures for conformity with design specifications and for defective manufacturing.
Notes
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