Chapter NR 182

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.c. c. Methods and procedural steps taken prior to field seaming of panels.

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)(b)5.h. h. Weather conditions and constraints.

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.

NR 182.110(5)(e) (e) A series of properly labeled 35-millimeter film color prints or prints from digital photographs that document all major aspects of facility closure. The images shall also be provided in reproducible electronic format. This photographic series shall include panoramic views of the closed area as well as close-up photos of the construction process and completed engineering structures.

NR 182.110(6) (6) Department action. Within 65 business days after receipt of a complete construction documentation report or a complete closure documentation report, the department shall do one of the following:

NR 182.110(6)(a) (a) Object to the construction or closure documentation report, identifying the issues that prevent the department from approving the report.

NR 182.110(6)(b) (b) Issue an approval and determination that the facility has been constructed or closed in substantial compliance with the plan of operation.

NR 182.110 History History: CR 20-043: cr. Register December 2021 No. 792, eff. 1-1-22; correction in (5) (b) made under s. 13.92 (4) (b) 7., correction in (6) (a) made under s. 35.17, Stats., and numbering of (2) (a) 1. e. made under s. 13.92 (4) (b) 1., Stats., Register December 2021 No. 792.

NR 182.111 NR 182.111 Facility license.

NR 182.111(1) (1) No person may maintain or operate a waste site unless the person has obtained an operating license from the department. The owner or operator of the mining waste facility shall submit an application for an initial operating license using forms supplied by the department. The department shall issue the license for the design capacity specified in the determination of site feasibility and the approval of the plan of operation unless the department establishes any of the following by a clear preponderance of the credible evidence:

NR 182.111(1)(a) (a) The site is not constructed in substantial compliance with the approved plan of operation as determined by the department under s. NR 182.110.

NR 182.111(1)(b) (b) The applicant has failed to pay any required fees or has failed to post or maintain financial assurance instruments as specified in s. 293.51, Stats.

NR 182.111(1)(c) (c) The applicant has failed to submit adequate evidence that a notation of the existence of the facility has been recorded in the office of the register of deeds in each county in which a portion of the facility is located.

NR 182.111(2) (2) The department may suspend or revoke a license issued under this section for grievous and continuous failure to comply with the approved plan of operation, or for grievous and continuous failure to comply with the requirements of this chapter. The department shall review the license and plan of operation to determine compliance annually or at such other intervals as it determines necessary, but no more frequently than annually.

NR 182.111(3) (3) Following closure of a site or facility and issuance of a certificate of completion of reclamation under s. NR 132.122 for the portion of the mining site that includes the mining waste facility, the owner, or any successor in interest, shall apply for and maintain a license during the period of long-term care owner financial responsibility indicated in s. NR 182.117 and s. 289.41 (1m) (g), Stats.

NR 182.111 History History: CR 20-043: cr. Register December 2021 No. 792, eff. 1-1-22.

NR 182.112 NR 182.112 Inspections.

NR 182.112(1) (1) Subject to applicable state and federal safety rules or regulations, personnel or agents of the department may accompany employees of the owner on any routine inspection required by this chapter, or may conduct inspections of their own at any other time that is reasonable under the circumstances involved. Department personnel or agents may conduct inspection of proposed mining waste facilities, mine waste facilities that are under construction, and mining waste facilities that have been licensed under this chapter, including closed facilities. Personnel or agents of the department may also examine any routine inspection reports and shall be furnished copies thereof upon request.

NR 182.112(2) (2) Except as provided in subs. (4) and (5), a qualified representative of the owner of a mining waste facility licensed under this chapter shall, at least weekly, visually inspect all of the following:

NR 182.112(2)(a) (a) The active sites or facilities, including dams, for possible damage or structural weakening.

NR 182.112(2)(b) (b) The waste handling and monitoring equipment and readings to ensure normal operation and measurements.

NR 182.112(2)(c) (c) The fences or barriers for possible damage.

NR 182.112(2)(d) (d) The buffer area around the facility for possible environmental damage related to its operation.

NR 182.112(3) (3) A qualified representative of the owner shall record the observations made in each visual inspection under sub. (2) in the facility’s operating log as set forth in these rules.

NR 182.112(4) (4) A qualified representative of the owner shall inspect active dam sites monthly. The findings on each inspection shall be recorded and filed with the department. The monthly the inspection report shall include all of the following:

NR 182.112(4)(a) (a) Condition of vegetation on the dam and within 50 feet from the outside base of the dam.

NR 182.112(4)(b) (b) Piezometric levels within the mass of the dam.

NR 182.112(4)(c) (c) Condition of soil surfaces on the top and slopes of the dam and within 50 feet from the outside base of the dam.

NR 182.112(4)(d) (d) Condition of drainage ditches near the base of the dam.

NR 182.112(4)(e) (e) Liquid surface level and amount of freeboard.

NR 182.112(4)(f) (f) Condition of spillways, conduits, and water level control structures.

NR 182.112(5) (5) A qualified representative of the owner shall inspect inactive dams quarterly. The findings on each inspection shall be recorded and filed with the department. The quarterly inspection report shall include all of the following:

NR 182.112(5)(a) (a) Condition of soil surfaces on the crest, slopes, and within 50 feet from the outside base of the dam.

NR 182.112(5)(b) (b) Determination of piezometric levels within the mass of the dam where such instrumentation has been determined to be necessary or required in the long-term care section of the plan of operation.

NR 182.112(5)(c) (c) Condition of spillways, conduits, and water level control structures.

NR 182.112(6) (6) When a potentially defective condition is found in a dam during an inspection under sub. (4) or (5), the owner shall ensure that it is recorded and corrected at the earliest practicable time in a manner consistent with the contingency plan, if applicable. A report of the condition shall be made to the department within 24 hours after completion of the inspection and the actions proposed and taken by the owner for its correction shall be made to the department at the earliest practicable time. The department shall notify the owner, in writing, of the title, address, and telephone number of the person to whom any report under this section shall be given, which notification shall specifically refer to this section and shall specify to whom reports are made both inside and outside of normal working hours. The department may confirm correction of the condition and specify any necessary additional corrective action. The department shall consider any of the following as indicating a condition that requires prompt investigation and may require corrective action:

NR 182.112(6)(a) (a) Seepage on the outer face of the dam accompanied by boils, sand cones or, deltas.

NR 182.112(6)(b) (b) Silt accumulations, boils, deltas, or cones in the drainage ditches at the base of the dam.

NR 182.112(6)(c) (c) Cracking of soil surface on crest or either face of the dam.

NR 182.112(6)(d) (d) Bulging of the outside face of the dam.

NR 182.112(6)(e) (e) Seepage, damp areas, or boils in the vicinity of or erosion around a conduit through the dam.

NR 182.112(6)(f) (f) Any shrinkage of the crest or faces of the dam.

NR 182.112(7) (7) Any of the following conditions found in a dam during an inspection under sub. (4) or (5) indicate potential defects and shall be closely checked on subsequent inspections for an active dam and shall necessitate an intermediate inspection of an inactive dam:

NR 182.112(7)(a) (a) Patches of overgrowth vegetation on the outside face or close to the base of the dam.

NR 182.112(7)(b) (b) Surface erosion, gullying, or wave erosion on the inside of the dam.

NR 182.112(7)(c) (c) Surface erosion, gullying, or damp areas on the outside of the dam, including the berm and the area within 50 feet from the outside base of the dam.

NR 182.112(7)(d) (d) Erosion below any conduit.

NR 182.112(7)(e) (e) Wet areas or soggy soil on the outside or in natural soil below the dam.

NR 182.112 History History: CR 20-043: cr. Register December 2021 No. 792, eff. 1-1-22; correction in (1) made under s. 13.92 (4) (b) 3., Stats., Register December 2021 No. 792.

NR 182.113 NR 182.113 Monitoring.

NR 182.113(1) (1) General. The department shall require the owner or operator of any nonferrous mining waste disposal site or facility, or any person who permits the use of property for such purposes, to conduct monitoring of groundwater, leachate, surface water, or other physical features located at the site or facility. The department may conduct its own monitoring or retain an independent contractor, at the expense of the owner or operator of any mining waste disposal site or facility or any person who permits the use of property for such purposes, to monitor groundwater, leachate, surface water, or other physical features located at the site or facility. Monitoring of the mining waste facility shall be in accordance with the monitoring plan required under ss. NR 132.107 (4) (c) and 132.117.

NR 182.113(2) (2) Groundwater and leachate monitoring.

NR 182.113(2)(a) (a) The department shall require adequate monitoring to detect the effects of leachate on groundwater located at the disposal site or facility. The department may require the installation of groundwater monitoring wells and may require installation of leachate monitoring wells, lysimeters, moisture probes, and similar devices, and associated water quality sampling programs.

NR 182.113(2)(b) (b) The department shall determine the number and location of required wells required under par. (a) based on the site size, waste types, site design, and the hydrogeologic and geologic setting of the site. The number shall be adequate to yield samples representative of the groundwater quality both up and down gradient from the disposal site or facility.

NR 182.113(2)(c) (c) The owner shall construct all monitoring wells in compliance with the requirements of ch. NR 141 and in such a manner as to prevent surface water from entering the well bore and inter-aquifer water exchange.

NR 182.113(2)(d) (d) The owner shall submit the results of all water elevation measurement and water quality sampling to the department within 60 days of the end of the sampling period. The owner shall submit an explanation of any deviation from the approved sampling plan or analytical procedures at the same time. The owner shall submit data in the format specified by the department.

NR 182.113(2)(e) (e) The owner shall conduct groundwater sampling quarterly, during the months of March, June, September, and December, unless an alternate schedule is specified by the department. An alternate schedule may be based on the hydrogeologic system’s characteristics such as flow velocity, stratigraphy, and other factors and fluctuations in quality, as defined by background or baseline sampling and waste type.

NR 182.113(2)(f) (f)

NR 182.113(2)(f)1. 1. The owner shall base sampling parameters on the results of the waste characterization and specified in the approved plan of operation. The quarterly analysis shall include parameters listed in subd. 2., with a comprehensive analysis, described in subd. 3., completed once each year, during the summer or fall sampling period.