Section NR 182.1095 - Preconstruction meetings and reporting(1) For composite-lined or composite-capped mining waste facilities, the department shall schedule a preconstruction meeting with representatives of the owner prior to the initiation of construction for each phase of construction of the geomembrane component of the liner or cap. At a minimum, the meeting shall include the design engineer, the appropriate department district and central office staff, the engineer or engineers responsible for quality assurance of all aspects of construction, and the geomembrane installer. The department shall use the meeting to clarify or confirm design changes, acceptability of selected construction materials, and construction concepts or practices required in the approved plan of operation or identified in the preconstruction report.(2) The owner shall prepare a preconstruction report for construction of each phase of a composite liner as well as each phase of a composite capping or cover layer. The department may also require a preconstruction report for each phase of construction that utilizes other geosynthetics, or when other geosynthetic materials are used in significant structural features of the facility. The owner shall submit the preconstruction report to the department no later than 15 days prior to each of the preconstruction meetings under sub. (1) for the construction of the geomembrane component of a composite liner or a composite capping layer. Unless otherwise specified, the owner shall submit 3 copies of each preconstruction report to the appropriate department office as directed by the department. The preconstruction report shall include all of the following: (a) An explanation of any proposed revisions to the plan of operation. The report shall include detail diagrams incorporating the changes and include all instructions regarding the changes between the owner, the installer, and the quality assurance contractor. The report shall highlight and explain any proposed changes to the information provided in the plan of operation. If, in the department's opinion, major changes are proposed to previously approved plans, the department shall require a plan modification approval. The report shall indicate the proposed limits of installation and the schedule for construction.(b) An identification of the manufacturer of the geomembrane, GCL, and other geosynthetics used in construction, manufacturer qualifications, technical specifications of the geomembrane resin and polymer selected, technical specifications for geotextile and reinforcement of the GCL, bentonite specifications used for manufacture of the GCL, and results of the manufacturer's quality control tests on the geomembranes and GCLs supplied to the project.(bd) An identification of the fabricator of geotextiles and other geosynthetics used in site construction, technical specifications of the products and materials to be used, methods used to bond the materials together and to connect panels together, installation contractor, contractor qualifications, and on-site supervisory staff.(bh) A description of any contractor-specific storage and material handling procedures, deployment methods, attachment methods, panel overlaps, patching, procedures for minimizing bentonite loss in the GCL, and acceptable limits on sub-grade for geomembrane or GCL, including maximum rut depth, maximum stone size, removal of gravel cobbles and other debris, and limits imposed by weather conditions.(bm) A description of methods to be used to assure the GCL does not become saturated prior to covering with soil and the procedure that will be followed if the GCL does become saturated, methods and equipment to be used to place the geomembrane over the GCL, and the maximum time between deployment of the GCL and placement of soil cover layers.(br) A description of the selected materials and source of the sideslope riser pipe, methods proposed to assemble and place the sideslope riser pipe, and measures to be taken to prevent puncture of the geomembrane below the sideslope riser pipe and protective drainage material.(c) The results of a shear test conducted, in accordance with ASTM method D5321, which is incorporated by reference, on the soils and geosynthetic materials selected for use in construction of the liner system and the final cover system. The test shall be conducted using wetted soil and geomembrane interfaces. The shear test results shall be used to evaluate the stability of the geomembrane component over the clay component and the drainage layers and overburden placed on the geomembrane component. For designs which utilize a GCL, the shear test results shall be used to evaluate the stability of the geomembrane component over the GCL component and the soil barrier layer and the drainage layers and overburden placed on the geomembrane component. Wet unit weights of soils shall be used in analyses. If all soil and geosynthetic materials to be used are identical to those that were tested for a previous construction phase, then the test need not be conducted again. The department may waive testing of materials which are proposed exclusively for use on liners or final cover systems with slopes of less than 10 percent. Note: Copies of the ASTM D5321/D5231M-20, "Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear," revised 2020, are available for inspection at the Department of Natural Resources, 101 South Webster St., Madison, Wisconsin 53703; and the Legislative Reference Bureau, 1 E. Main St., Ste. 200; Madison, Wisconsin 53703; and for purchase at http://www.astm.org.
(d) A quality control plan which provides all information specified in s. NR 182.109(2) (c) 9., as well as identification of the installation contractor, contractor qualifications, and on-site supervisory staff. Any proposed changes to the quality control plan contained in a mining waste facility's approved plan of operation shall be highlighted and explained.(e) A quality assurance plan that provides all information specified in s. NR 182.109(2) (c) 10. and 11. and that identifies the registered professional engineer and qualified technician who will be providing quality assurance and that summarizes of their qualifications and related work experience.Wis. Admin. Code Department of Natural Resources NR 182.1095
Adopted by, CR 20-043: cr. Register December 2021 No. 792, eff. 1/1/2022