Section NR 516.05 - Construction of landfill areasIn addition to the general information specified in s. NR 516.04(3) (d) reports documenting the construction of all new landfill areas shall contain the following minimum information:
(1) ENGINEERING PLANS. A set of 24 inch by 36 inch engineering plan sheets, or alternative size if approved by the department in writing, shall be prepared in accordance with s. NR 500.05 and contain: (a) 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.(b) Plan view drawings 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 recompaction of clay was necessary in order to attain the minimum required specifications. For composite-lined and composite-capped landfills, 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.(c) 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.(d) 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, berms and the location of all unsaturated zone, groundwater, gas, 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.(e) 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.(f) Detail drawings, 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.(g) Cross-section details shall be included to illustrate all important construction features of the liner, lysimeters, leachate collection trenches and sumps, and sediment control and storm water management systems.(h) Detail drawings shall be included 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.(i) Additional plan sheets, patterned after those specified in pars.(a) to (h), shall be included for those facilities designed with multiple liners, groundwater gradient control systems or other nonstandard design features. (2) REPORT PREPARATION. A comprehensive report containing a detailed narrative describing the construction of the area in a logical fashion shall be prepared. Particular emphasis shall be given to any deviations from the approved plan of operation and to the explicit construction methods used for all locations where leachate transfer piping exits the lined waste fill area. This report shall include the following information at a minimum:(a) 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 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 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. Also included shall be the make, model, weight and foot length of each piece of equipment used to compact clay.(b) A table containing thicknesses of each layer in the liner system on a 100-foot grid pattern.(c) 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.(d) 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 discussed.(e) 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 the following: 1. Identification and location of geomembrane panels placed, with modifications of the fabrication plan noted.2. Identification of field seams and ends of panels, and results of all destructive and nondestructive field tests of test seams and installed seams.3. Methods and procedural steps taken prior to field seaming of panels.4. Identification of wrinkles that were large enough to double over and were cut out and repaired.5. Identification of repairs and destructive samples and the results of the nondestructive testing of those repairs.6. Amount and location of geotextile and other geosynthetics used in construction of the liner.7. Identification of the sources and product information for manufactured items used in site construction including geosynthetics. This shall include the identification of all solvents and other sealants used in pipe construction.8. Weather conditions and constraints.(f) A series of properly labeled 35 millimeter color prints or prints from digital photographs documenting all major aspects of facility construction. This shall include close-up photographs 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, 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.Wis. Admin. Code Department of Natural Resources NR 516.05
Cr. Register, January, 1988, No. 385, eff. 2-6-88; r. (1) (g), (2) (d), renum. (intro. (1), (2) (intro.), (a), (d), (f) from NR 516.06 (intro.), (1), (2) (intro.), (a) (b), (c), cr. (1) (g), (h), (i), (2) (b), (c), (e) and am. (intro.), (1) (a) to (c), (e) (f), (2) (intro.), (a), (f), Register, June, 1996, No. 486, eff. 7-1-96; CR 05-020: am. (2) (f) Register January 2006 No. 601, eff. 2-1-06.