NR 182.1095
NR 182.1095 Preconstruction meetings and reporting. NR 182.1095(1)(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.
NR 182.1095(2)
(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:
NR 182.1095(2)(a)
(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.
NR 182.1095(2)(b)
(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.
NR 182.1095(2)(bd)
(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.
NR 182.1095(2)(bh)
(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.
NR 182.1095(2)(bm)
(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.
NR 182.1095(2)(br)
(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.
NR 182.1095(2)(c)
(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.
NR 182.1095 Note
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.
NR 182.1095(2)(d)
(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.
NR 182.1095(2)(e)
(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.
NR 182.1095 History
History: CR 20-043: cr. Register December 2021 No. 792, eff. 1-1-22. NR 182.110
NR 182.110 Construction documentation and completion reports. NR 182.110(1)(1)
Report preparation. The owner shall construct a waste site in accordance with the approved plan of operation. The owner shall prepare a report documenting all aspects of construction for the initial construction of the mining waste facility; the construction of all subsequent phases or portions thereof; the construction of any storm water, groundwater, or leachate control structures; the implementation of remedial actions; and the closure of each major disposal area. Approval of a report that documents the construction of any portion of the base of a mining waste facility shall be obtained from the department prior to initiating disposal operations in the newly established area and subsequent phases.
NR 182.110(2)(a)1.1. The owner shall employ a registered professional engineer or a qualified technician who is directly supervised by a professional engineer who shall be continuously on-site and performing assigned quality assurance duties throughout all of the following:
NR 182.110(2)(a)1.b.
b. Installation and testing of the geosynthetic components of liner and cover systems.
NR 182.110(2)(a)1.c.
c. All aspects of sump and sideslope riser construction or penetrations of sidewall liners.
NR 182.110(2)(a)2.
2. The registered professional engineer or qualified technician described in subd.
1. shall also be on-site to inspect the following activities after their completion:
NR 182.110(2)(a)2.a.
a. Temporary and permanent erosion control measures such as ditches, fencing, and sedimentation basins.
NR 182.110(2)(a)2.c.
c. Clay liner surface preparation and grading, leachate, lysimeter, and gas piping prior to being covered with soil.
NR 182.110(2)(a)2.d.
d. Piping with tanks, manholes, or vaults and installation of instrumentation and controls.
NR 182.110(2)(a)3.
3. The department may require by written approval that a registered professional engineer be present during other critical construction activities.
NR 182.110(2)(b)
(b) With respect to registered professional engineers or qualified technicians employed to meet the requirements of par.
(a), substitution of personnel may only occur due to substandard performance, vacations, or uncontrollable circumstances such as injury, illness, employee termination, or resignation. However, if necessary in order to provide experienced personnel, geomembrane installation quality assurance may be performed by a different registered professional engineer or qualified technician directly supervised by the registered professional engineer described in par.
(a). In no case, however, may the personnel performing quality assurance for geomembrane installation be an employee of the geomembrane manufacturer, fabricator, or installer. Also, when justified by the size of the construction project, multiple registered professional engineers or qualified technicians may perform quality assurance work concurrently.
NR 182.110(3)
(3)
Certification. The first section of any construction documentation report prepared for the construction or closure of a portion of a mining waste facility shall be a certification section that includes all of the following:
NR 182.110(3)(a)
(a) A statement signed and sealed by each licensed professional engineer who either performed quality assurance work on the project or supervised qualified technicians who performed quality assurance work.
NR 182.110(3)(b)1.
1. Each licensed professional engineer and qualified technician who performed quality assurance during the construction.
NR 182.110(3)(b)2.
2. Which aspects of construction each licensed professional engineer and qualified technician provided on site quality assurance for.
NR 182.110(3)(b)3.
3. The number of days each licensed professional engineer and qualified technician was present at the facility performing quality assurance work.
NR 182.110(3)(b)4.
4. The total hours each licensed professional engineer and qualified technician spent at the site performing quality assurance work.
NR 182.110(3)(b)5.
5. The licensed professional engineer who supervised each qualified technician that performed quality assurance during the construction.
NR 182.110(3)(c)
(c) A second table identifying who prepared each portion of the construction documentation report including both narrative and plan sheets.
NR 182.110(3)(d)
(d) Separate signed statements by the licensed professional engineers identified in sub.
(2) certifying to the best of their knowledge, information, and belief that the construction of each item identified in the following subdivisions was accomplished in conformance with the approved plans and applicable rules. All observed deviations shall be explicitly noted and discussed including any changes in materials. This certification may not be construed to be either an implied or express guarantee or warranty regarding the performance of the construction documented in this report. No further qualifications to the certification statement may be made and each statement shall also clearly identify the personal observations, knowledge or other information on which the certification is based. The certification section shall include a signed statement for all of the following:
NR 182.110(3)(d)1.
1. The clay component of a liner or cap. The statement shall specifically address:
NR 182.110(3)(d)1.a.
a. The quality of clay material used, and the methods utilized in its placement.
NR 182.110(3)(d)1.c.
c. The preparation of leachate collection trenches, sumps, and any pipe penetrations through the clay component.
NR 182.110(3)(d)1.d.
d. The preparation of the upper portions of the clay component or soil barrier layer component of a composite–lined or composite–capped facility for installation of the geomembrane or GCL, including smoothness of the surface, removal of rocks and other foreign objects, and repair of the clay or soil barrier layer surface due to rain, rutting, or other damage.
NR 182.110(3)(d)1.e.
e. The placement of soil or other materials placed over a composite liner or composite cap.
NR 182.110(3)(d)2.
2. The geomembranes, grids, fabrics, nets, and appurtenances. The statement shall specifically address:
NR 182.110(3)(d)2.b.
b. The placement of geomembrane in collection trenches, sideslope riser sump areas and other irregularly shaped areas.
NR 182.110(3)(d)2.c.
c. The connections of geomembrane around leachate transfer pipes and any other penetration of the composite liner or composite cap.
NR 182.110(3)(d)3.
3. The elements of the construction relating to leachate or storm water routing, collection, storage, and transportation systems. The statement shall include construction of leachate collection and transfer lines, side slope risers for leachate pumping, all liner penetrations, collection tanks, manholes, lift stations, lysimeters and leachate head wells.
NR 182.110(4)
(4)
Construction documentation report. In order to fulfill the construction report requirements of sub.
(1), the owner of a waste mining facility shall prepare a comprehensive constructive documentation report for the construction of a new mining waste facility. The report shall contain a detailed narrative describing the construction of the facility in a logical fashion that shall contain, all of the following information, as applicable to the specific design of the facility:
NR 182.110(4)(a)
(a) A set of 24-inch by 36-inch engineering plan sheets, or alternative size if approved by the department in writing, that includes all of the following:
NR 182.110(4)(a)1.
1. A plan view documenting the constructed grades for the sub-base, sidewalls, leachate collection trench undercuts, and all sub-base appurtenances such as lysimeters and drain pipes, prior to liner placement. Documentation of the grades shall consist of spot elevations taken on a maximum 50-foot grid pattern, with leachate collection trench undercut elevations at least every 25 linear feet. If a total station or laser equipment is used to set elevations, the elevations may be taken every 50 linear feet. The approved sub-base grades shall also be shown for the same area in a clear and legible manner.
NR 182.110(4)(a)2.
2. A plan view drawing showing the locations of all the various soil and geomembrane testing performed. Each test location shall be clearly labeled with appropriate identification codes. The plan view drawings shall clearly show any areas where removal and re-compaction of clay was necessary in order to attain the minimum required specifications. For composite-lined and composite-capped mining waste facilities, a plan view drawing shall also clearly show geomembrane panel placement, geomembrane patches and seam repairs, and geomembrane destructive sample locations. Multiple plan views may be shown on a single plan sheet if legibility is not compromised.
NR 182.110(4)(a)3.
3. A plan sheet documenting the constructed elevations for the liner system. This plan sheet shall contain spot elevations of the base, sidewalls, and leachate collection trenches. Documentation of grades shall include spot elevations taken on a maximum 50-foot grid pattern, with leachate collection trench elevations taken every 25 linear feet. If a total station or laser equipment is used to set elevations, the leachate collection trench elevations may be taken every 50 linear feet. The approved base grades shall be shown for the same area in a clear and legible manner.
NR 182.110(4)(a)4.
4. A plan view drawing showing the constructed base grades as well as the locations and elevations of all leachate collection and transfer piping, manholes, lift stations, culverts, and berms and the location of all unsaturated zone, groundwater, leachate monitoring and cleanout devices, surface drainage features, and other pertinent structures. This information may be shown on the plan sheet required in par.
(c) if legibility is not compromised.
NR 182.110(4)(a)5.
5. A cross-sections through the constructed area parallel and perpendicular to the base line of the facility. A minimum of 4 cross-sections shall be prepared, 2 of which shall be in each direction. Additional cross-sections shall be prepared as necessary to add clarification. Each of the cross-sections shall show actual and design sub-base and base grade contours, the top of the granular drainage blanket, leachate and groundwater pipe elevations, and the actual base and sub-base contours of adjacent filled areas. The design sub-base and base grade contours do not need to be shown if there is not an observable variation from the design grades.
NR 182.110(4)(a)6.
6. A detail drawing, both plan view and cross-sections, of all manholes, lift stations, storage tanks, sumps, and sideslope risers or locations where leachate transfer piping exits the lined area and the secondary containment of these features as well as leak detection monitoring points and other pertinent construction details. At a minimum, these drawings shall show base and top elevations, the invert elevations of all associated piping, pump details, float level elevations, and the extent of recompacted clay placed around and below the structures. If float elevations are not available at the time of submittal of the construction documentation report, they shall be provided to the department when they are available.
NR 182.110(4)(a)7.
7. The cross-section details to illustrate all important construction features of the liner, lysimeters, leachate collection trenches and sumps, and sediment control and storm water management systems.
NR 182.110(4)(a)8.
8. The drawing details for leachate header lines or drain lines located outside the limits of waste in critical areas of below-ground piping, such as where several pipes cross or meet to illustrate sufficient pipe location and invert information.
NR 182.110(4)(b)
(b) A narrative description of important facility design features including all of the following:
NR 182.110(4)(b)1.
1. An analysis and discussion of all soil and geomembrane testing work performed. All density and moisture content testing results shall clearly indicate which Proctor curve or line of optimums is applicable to the soil being compacted. Any change in the referenced Proctor curve or line of optimums shall be identified as to when the change occurred and why the change was made. All raw data from the soil and geomembrane testing performed shall be included in an appendix to the construction documentation report unless other arrangements were previously approved by the department. The raw data shall be summarized using a tabulated format. The discussion shall also include the make, model, weight, and foot length of each piece of equipment used to compact clay, if applicable.
NR 182.110(4)(b)2.
2. A table containing thicknesses of each layer in the liner system on a 100-foot grid pattern.
NR 182.110(4)(b)3.
3. A discussion of how the leak tests were performed on lysimeters and sideslope riser sumps and a discussion of any problems encountered and how they were resolved.
NR 182.110(4)(b)4.
4. Documentation of the initial leachate collection pipe cleanout and pressure testing of force mains and leachate storage tanks. All provisions used to seal pipe connections, manhole sections, and leachate storage tanks including protective coatings and corrosion protection shall be described. The manufacturer's recommendations for the installation of all equipment shall be included. Any deviations from the recommendations shall be documented and discussed.
NR 182.110(4)(b)5.
5. The daily summary reports prepared by the registered professional engineer or qualified technician performing continuous quality assurance for each day that installation of geomembrane or other geosynthetics is either attempted or accomplished when constructing composite-lined sites. The reports shall specifically describe practices employed for base grade preparation and acceptance before geomembrane installation and drainage layer placement and all of the following:
NR 182.110(4)(b)5.a.
a. Identification and location of geomembrane panels placed, with modifications of the fabrication plan noted.
NR 182.110(4)(b)5.b.
b. Identification of field seams and ends of panel, and results of all destructive and nondestructive field tests of test seams and installed seams.
NR 182.110(4)(b)5.d.
d. Identification of wrinkles that were large enough to double over and were cut out and repaired.
NR 182.110(4)(b)5.e.
e. Identification of repairs and destructive samples and the results of the nondestructive testing of those repairs.
NR 182.110(4)(b)5.f.
f. Amount and location of geotextile and other geosynthetics used in construction of the liner.
NR 182.110(4)(b)5.g.
g. Identification of the sources and product information for manufactured items used in site construction including geosynthetics, including the identification of all solvents and other sealants used in pipe construction.
NR 182.110(4)(c)
(c) A series of properly labeled 35-millimeter film color prints or prints from digital photographs documenting all major aspects of facility construction. The images shall also be provided in reproducible electronic format. As determined by the specific design features, the photographic series shall include close–up images of the construction process including clay liner and soil barrier layer placement and compaction equipment, deployment of geomembrane and all other geosynthetics, deployment equipment, leachate pipe placement including all places where transfer piping exits the lined waste fill area or sideslope riser installation, and drainage blanket placement and the installation of all manholes, sumps, sideslope risers, lift stations, and storage tanks. Panoramic views shall be included showing the prepared sub–base and the completed liner before and after granular blanket placement.
NR 182.110(5)
(5)
Closure documentation. In order to fulfill the closure reporting requirements of sub.
(1), the owner shall prepare a comprehensive report containing a detailed narrative describing the closure of the mining waste facility in a logical fashion in coordination with reporting requirements specified in the prospecting permit issued under ch.
NR 131 or the mining permit and reclamation plan approval issued under ch.
NR 132. Particular emphasis shall be placed on any deviations from the approved plans. All construction documentation reports for the closure of mining waste facilities shall contain all of the following information, as applicable to the facility's design and closure specifications:
NR 182.110(5)(a)
(a) A set of 24-inch by 36-inch engineering plan sheets, and corresponding electronic versions with digital geographic information system files, unless an alternative size is approved by the department in writing, that include all of the following:
NR 182.110(5)(a)1.
1. A plan sheet documenting the final waste grades. Documentation of grades shall include spot elevations taken on a maximum 100-foot grid after grading has been performed to establish uniform slopes.
NR 182.110(5)(a)2.
2. A plan view drawing for each one–foot thickness of clay or soil barrier layer placed, showing the locations of the various soil testing completed and detailing the tests performed at each location. Multiple plan views may be presented on a single engineering plan sheet if legibility is not compromised.
NR 182.110(5)(a)3.
3. A plan view drawing showing the location of all geomembrane tests, geomembrane panel layout, geomembrane patches and seam repairs, and geomembrane destructive samples.
NR 182.110(5)(a)4.
4. A plan sheet documenting the constructed final cap grades prior to topsoil placement on a maximum 100-foot grid. Approved final cap grades shall be shown for the same area in a clear and legible manner. For areas less than 4 acres, a 50-foot grid shall be used.
NR 182.110(5)(a)5.
5. The cross-sections through the closed area that are constructed parallel and perpendicular to the base line of the facility. A minimum of 4 cross-sections shall be submitted, 2 of which shall be in each direction. Each of the cross-sections shall show all surficial and subsurface features encountered including leachate lines, and other facility structures and shall be tied into the grades of adjacent previously filled areas. At a minimum, each cross-section shall show actual sub-base grades, base grades, final waste grades, and final topsoil grades.
NR 182.110(5)(a)6.
6. The cross-section details shall be included to illustrate all important construction features of the final cover, and sediment control and storm water management structures.
NR 182.110(5)(b)
(b) An analysis and discussion of all soil, geomembrane, and other geosynthetic testing work performed. All density and moisture content testing results shall clearly indicate which Proctor curve or line of optimums is applicable to the soil being compacted. Any changes in the referenced Proctor curve or line of optimums shall be identified as to when they occurred and why the change was made. All raw data from the soil, geomembrane, and other geosynthetic testing performed shall be included in an appendix to the closure documentation report unless other arrangements were previously approved by the department. The raw data shall be summarized using a tabulated format. Also included shall be the make, model, weight, and foot length of each piece of equipment used to compact clay.
NR 182.110(5)(c)
(c) A table containing thicknesses of each layer in the cover system on a 100-foot grid pattern. When determining soil thickness by using surveying information, the table shall contain elevations before and after soil layer placement on the 100-foot grid. For areas less than 4 acres, a 50-foot grid shall be used. As an alternative to the survey method, soil thickness shall be controlled using settlement plates and grade stakes, and clay thickness shall be established on a 100-foot grid using auger borings. Boreholes shall be backfilled with a soil-bentonite mix such that the in-place permeability of the backfilled material is equal to or less than the surrounding clay cap.
NR 182.110(5)(d)
(d) Daily summary reports shall be prepared for each day that installation of geomembrane or other geosynthetics is either attempted or accomplished for composite-capped mining waste facilities and shall contain the information required in s.
NR 182.110 (4) (b) 5.
