Wisconsin Administrative Code › Department of Natural Resources › NR 500-599 - Environmental Protection - Solid Waste Management › Chapter NR 516 - Landfill Construction Documentation › Section NR 516.05 - Construction of landfill areas

Current through June 24, 2024
In 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.