Section R. 299.4919 - Landfill construction; leachate collection system construction recordsRule 919.
(1) Construction records for leachate collection systems, both above and between liners, shall include documentation of all of the following: (a) Observations and tests on piping, as specified in subrule (2) of this rule.(b) Observations and tests on any soil drainage layer, as specified in subrule (3) of this rule.(c) Observations and tests on any synthetic drainage layer or geotextile, as specified in subrule (4) of this rule.(d) Inspections of filter layers, as specified in subrule (5) of this rule.(e) Inspection and testing of sumps and associated equipment, as specified in subrule (6) of this rule.(2) Construction records for piping shall include documentation of all of the following: (a) Observations and measurements to ensure that the pipes are placed at locations and in configurations specified in the design.(b) Observations and tests to ensure that pipe grades are as specified in the design.(c) Observations and tests to ensure that all pipes are joined together as specified in the design.(d) Observations to ensure that the placement of any filter materials around the pipe is in compliance with the specifications in the design.(e) Observations and tests to ensure that backfilling and compaction are completed as specified in the design and that, in the process, the pipe network is not damaged.(3) Construction records for any soil drainage layer shall include documentation of all of the following: (a) Observations and tests to ensure that the drainage layer material is of the particle size as specified in the design and is free from excessive amounts of fines or organic materials. Grain size distribution shall be determined every 1,000 cubic yards of material placed.(b) Tests to verify hydraulic conductivity, as determined by ASTM ) D2434-68(94), every 2,500 cubic yards of material placed.(c) Observations and tests not less than every 200 feet on grid, to ensure that the thickness and coverage of the drainage layer are in compliance with the design specifications.(d) A survey of the drainage layer to ensure that grades are obtained as specified in the design.(e) Observation of construction procedures to prevent the transport of fines by runoff into the leachate collection system.(4) Construction records for any synthetic drainage material or geotextile shall include documentation of all of the following:(a) Observations to ensure that all synthetic drainage layer or geotextile materials are placed according to the placement plan.(b) Measurements to ensure that the overlap of all synthetic drainage layer or geotextile material as specified in the design is achieved.(c) Observations to ensure that the synthetic drainage layer or geotextile materials are free from excessive wrinkles and folds.(d) Observations to ensure that weather conditions are appropriate for placement of the synthetic drainage layer or geotextile materials and that exposure to rain, wind, and direct sunlight during and after installation is in compliance with the manufacturer's recommendations.(5) Construction records shall include an inspection of the filter layer placement to ensure that the design specifications, including material specifications, placement procedures, and thickness, are met.(6) Construction records shall include an inspection and testing of the sump, leachate removal and detection equipment, and any other associated equipment or structures to ensure that the design specifications, including material and equipment specifications, coating specifications, and mechanical and electrical equipment installation specifications, are met.(7) ASTM procedure D2434-68(94) is adopted by reference in R 299.4135.Mich. Admin. Code R. 299.4919