NR 503.10(2)(h)2.2. A discussion of initial preparations and construction methods relating to clearing and grubbing, topsoil stripping and other excavations; soil storage and visual screening development; storm water control features; base liner and granular drainage layers; leachate collection and gas venting systems; access roads and entrance area screening and fencing; environmental monitoring device installation and other special design features.
NR 503.10(2)(h)3.3. A description of storm water management at the time of initial construction, during phased development and after closure of the landfill. The report shall include narrative demonstrating compliance with s. NR 504.09. The report shall describe in detail temporary and permanent erosion and sediment control measures and indicate how these measures will accomplish the concepts in s. NR 504.09 (1) (b). The report shall include the specifications for design of sediment basins, culverts, drainage ditches, auxiliary sediment traps, and the anticipated extent of cleared ground and stockpiles during each major phase of landfill development. The report shall include a list of anticipated actions and materials needed for sediment and erosion control. The report shall describe a maintenance and follow-up program designed to meet the concepts in s. NR 504.09 (1) (b). The report shall include schedules for the following activities: cleaning sediment basins and ditches; seeding and stabilization of stockpiles and drainage channels; and topsoiling, seeding and stabilization of disturbed areas and areas affected by erosion.
NR 503.10(2)(h)4.4. Specifications for the proposed gradations of soil materials and the proposed size of the perforations used in the leachate collection system piping. The report shall include an analysis of the pipe and soil materials to demonstrate whether the gradation of sand and gravel and the pipe opening sizes are stable and self-filtering. The report shall describe the use of filter layers or other mechanisms used to maintain the porosity in the leachate collection blanket, collection trenches and sumps.
NR 503.10(2)(h)5.5. A description of the daily landfill operations including a discussion of the timetable for the construction of each phase of liner or final cover; waste types accepted or excluded; typical waste handling techniques and methods for handling unusual waste types; hours of operation; traffic routing; storm water management; sediment and erosion control; windy, wet and cold weather disposal operations; fire protection equipment; anticipated staffing requirements; methods for vector, dust and odor control; daily cleanup; leachate removal during hours of operation as well as nights, weekends and holidays; direction of filling; salvaging; record keeping; and parking for visitors, users and employees. The report shall describe any limitations or operational practices necessary due to the presence of other open or closed landfills, processing facilities, storage facilities, composting facilities or any other solid waste facilities located on the same property.
NR 503.10(2)(h)6.6. A description of landfill operations and the development of subsequent phases. This discussion shall define the critical stage of waste disposal for each phase as it relates to the start of construction of subsequent phases. The scheduling of future construction shall take into account the length of the construction season, limitations imposed by weather and season, and the capacity remaining in existing phases such that an orderly transition is maintained. The report shall describe the anticipated construction in each phase for storm water management, monitoring, abandonment of fill areas, and the installation and maintenance of gas and leachate control structures.
NR 503.10(2)(h)7.7. A description of the waste inspection and rejection procedures, including use of the inspection pad for dumping and inspecting all incoming waste, actions to be taken to reject unacceptable waste, and movement of non-salvageable material from the pad to the landfill. The report shall also describe the procedures for identifying salvageable material and moving it from the inspection pad to the adjacent salvageable material storage area, and schedules for removing salvageable material to markets.
NR 503.10(2)(h)8.8. A description of landfill operations, actions taken when phases of the landfill reach waste final grades, and closure of phases at waste final grades. The report shall include a discussion of the anticipated sequence of the required events for closure of the landfill and a discussion of those actions necessary to prepare the landfill for long-term care and final use.
NR 503.10(2)(h)9.9. A proposed long-term care schedule describing the procedures to be utilized for the inspection and maintenance of cover vegetation; storm water control structures; waste or ground surface settlement or siltation; erosion damage; gas and leachate control features; gas, leachate and groundwater monitoring; and other long-term care needs. The report shall include a final use plan for the landfill.
NR 503.10(2)(h)10.10. Specifications for construction, operation and closure of the landfill. These specifications shall include detailed instructions to the operator and any contractors for all aspects of construction and operation. References to specifications on the plan sheets shall be described. This may include information such as tank manufacturer installation instructions and pump performance criteria, materials and construction methods for sideslope risers, sidewall penetrations, sump areas and all piping located outside the limits of filling.
NR 503.10(2)(h)11.11. An explanation of all design calculations to facilitate department review and provide the necessary information on financial responsibility for closure and long-term care of the landfill. The report shall include a discussion of all calculations, such as waste to cover balance computations, base liner and final covering soils materials needs related to available borrow soil volumes, stockpile sizing estimates, shear resistance calculations for geosynthetic materials and soil layers, design of the storm water management system, infiltration and leachate collection and leakage volumes. All calculations shall be summarized with the detailed equations presented in the appendix of the report. References to the appropriate plan sheets, from which variables are obtained for these calculations shall be included in these summaries.
NR 503.10(2)(h)12.12. A detailed analysis in accordance with ch. NR 520 shall be made of the costs associated with closure of the landfill and of performing each year of long-term care. All assumptions used in developing the cost estimates shall be listed, including sources of the cost estimates and rationale for the selected cost factors. The anticipated operating life and replacement schedule of all engineering design features shall be addressed and reflected in the cost estimates. The proposed methods of establishing proof of financial responsibility for closure and long-term care under ch. NR 520 shall also be specified.
NR 503.10(2)(h)13.13. An appendix shall be included which lists the references used and includes any additional data not previously presented, supplemental design calculations, material specifications, operating agreements and any miscellaneous agreements such as easements, documents related to long-term care funding and other appropriate information. At a minimum, the appendix of the report shall include the following written agreements:
NR 503.10(2)(h)13.a.a. A draft leachate treatment agreement.
NR 503.10(2)(h)13.b.b. A signed clay procurement agreement or option for acquisition of the borrow source property for the volumes necessary to construct and close the first major phase of the landfill.
NR 503.10(2)(h)14.14. Proposed environmental monitoring plan which, at a minimum, complies with the requirements of sub. (7).
NR 503.10(3)(3)Design requirements. Intermediate size construction and demolition waste landfills shall be designed to contain and collect leachate to the maximum practical extent. This shall be accomplished by designing the landfill to meet the standards contained in the applicable portions of this subsection unless the department approves an alternate design which provides equal or greater protection.
NR 503.10(3)(a)(a) If the applicant does not complete construction of the first major phase of the landfill within 2 years from the date of the report approval, the applicant shall reapply to the department for approval to construct the landfill. The department may require additional conditions of approval and require redesign of the landfill in accordance with state-of-the-art design criteria.
NR 503.10(3)(b)(b) Except as provided in par. (c), all landfills regulated under this section shall be designed with a clay liner which meets the following requirements:
NR 503.10(3)(b)1.1. Soil for a clay liner shall meet the following specifications:
NR 503.10(3)(b)1.a.a. A minimum of 50% by weight which passes the 200 sieve.
NR 503.10(3)(b)1.b.b. A saturated hydraulic conductivity of 1x10-7 cm/sec or less, when compacted to required moisture contents and densities based on the modified Proctor method, standard Proctor method, or a department-approved line of optimums method.
NR 503.10(3)(b)1.c.c. An average liquid limit of 25% or greater with no values less than 20%.
NR 503.10(3)(b)1.d.d. An average plasticity index of 12% or greater with no values less than 10%.
NR 503.10(3)(b)2.2. The separation distance between the seasonal high groundwater table and the bottom of the clay liner shall be at least 10 feet except for zone-of-saturation landfills.
NR 503.10(3)(b)3.3. The separation distance between the competent bedrock surface and the bottom of the clay liner shall be at least 10 feet.
NR 503.10(3)(b)4.4. The slope of the clay liner surface toward the leachate collection lines shall be at least 2%.
NR 503.10(3)(b)5.5. The minimum thickness of the clay liner at all locations shall be 3 feet.
NR 503.10(3)(b)6.6. The clay liner shall be constructed in the following manner:
NR 503.10(3)(b)6.a.a. All clay layers in the liner shall be constructed in lift heights no greater than 6 inches after compaction using footed compaction equipment having feet at least as long as the loose lift height. As needed, clay shall be disked or otherwise mechanically processed prior to compaction to break up clods and allow for moisture content adjustment. Clod size shall be no greater than 4 inches.