Wis. Admin. Code Department of Natural Resources § NR 514.06 - Operations manual and design report

The plan of operation for all new landfills and expansions of existing landfills shall contain an operations manual and design report which shall comply with ss. NR 500.05, 504.05 to 504.12 and, at a minimum, shall contain the following information:

(1) TABLE OF CONTENTS. The report shall include a table of contents which outlines by section title and page number the discussion required in this section.

(2) GENERAL INFORMATION. The report shall identify the name of the landfill; the registered professional engineer who prepared the plans; landfill owner, licensee and operator; location by quarter-quarter section; the proposed limits of filling; the anticipated life and closure date; disposal capacity; waste tonnages and corresponding volumes, percent municipal waste versus industrial waste, anticipated geographic service area, and anticipated industrial waste types; waste types and quantities to be disposed; any exemptions requested from the department; and a list of the conditions of facility development as stated in the feasibility determination and the measures incorporated in the plan of operation to address those conditions.

(3) DESIGN RATIONALE. The report shall include a discussion of the considerations and rationale behind design of the discretionary aspects of major engineering features which are not explicitly required by state or federal regulations or the conditions of the department's feasibility approval for the landfill. This shall include base grade configuration and relationship to subsurface conditions, liner design, phases of landfill development and closure, traffic routing, storm water management, erosion, and sediment control measures, gas extraction and treatment systems, final cover systems, and monitoring systems. Specific attention shall be given to sidewall penetrations, sideslope riser and sump area volumes and construction, and piping located outside of the limits of filling. In addressing each of the above design items, the report shall indicate how the anticipated waste types and characteristics influenced the chosen design.

(4) INITIAL CONSTRUCTION. The report shall discuss 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. This discussion shall propose a schedule of field measurements, photographs to be taken, and sampling and testing procedures to be utilized to verify that the infield conditions encountered were the same as those defined in the feasibility report.

(5) STORM WATER MANAGEMENT. The report shall describe storm water management at the time of initial construction, during phased development, and after closure of the landfill. The report shall include:

(a) Narrative demonstrating compliance with s. NR 504.09.

(b) Detailed description of temporary and permanent erosion and sediment control measures to be used to accomplish the concepts in s. NR 504.09 (1) (b).

(c) 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.

(d) A list of anticipated actions and materials needed for sediment and erosion control.

(e) A maintenance and follow-up program designed to meet the concepts in s. NR 504.09 (1) (b).

(f) 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.

(6) SOIL REQUIREMENTS.

(a) The report shall include a proposed testing schedule to document the placement of all general soil fill and backfill, base liner, final cover layers and all venting or drainage layers used in any phase of development or closure. The report shall contain an explicit statement and description of testing methods if construction and documentation are proposed to be performed other than in accordance with the requirements of ch. NR 516. The report shall include justification for any proposed changes to the testing requirements of ch. NR 516.

(b) The report shall specify the proposed gradations of soil materials and the proposed size of the perforations used in the leachate collection system piping and the drainage layer in the final cover system. 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.

(c) The report shall include the documentation required by s. NR 504.075 for any soil borrow source that was not included in the approved feasibility report for the landfill.

(7) MONITORING.

(a) The report shall include a proposed monitoring program for groundwater, surface water, volumes and quality of gas and gas condensate, unsaturated zone, leachate volume and quality, and surface settlement developed in accordance with ch. NR 507 and the specific requirements of the feasibility approval. The proposed monitoring program shall include a table listing frequencies of sampling, parameters to be analyzed, and a schedule for the anticipated installation or abandonment of sampling points. The table shall indicate existing and proposed sampling points and devices and the anticipated periods during which the points and devices will be monitored before landfill development, during each major phase of landfill development, and during the period of long-term care.

(b) The report shall include a listing of all groundwater elevation data collected from all groundwater sampling points subsequent to preparation of the feasibility report.

(8) OPERATIONS. The report shall describe the daily 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, demolition landfills, processing facilities, storage facilities, composting facilities or any other solid waste facilities located on the same property.

(9) PHASED DEVELOPMENT. The report shall describe landfill operations and the development of subsequent phases. This discussion shall define the critical stage of refuse disposal for each phase as it relates to the start of construction of subsequent phases. The purpose of this planning is to ensure that the scheduling of future construction takes 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.

(10) PHASED CLOSURE. The report shall describe 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.

(11) LONG-TERM CARE. The report shall include a proposed long-term care schedule describing the procedures to be utilized for the inspection and maintenance of cover vegetation, storm water control structures, refuse 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.

(12) WRITTEN AGREEMENTS. The appendix of the report shall include the following written agreements:

(a) A draft leachate treatment agreement.

(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 facility.

(c) Any miscellaneous agreements such as easements.

(13) SPECIFICATIONS. The report shall include 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 geosynthetic material installation instructions, 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.

(14) DESIGN CALCULATIONS. The report shall include and explain all design calculations to facilitate department review and provide the necessary information on financial responsibility for closure and long-term care of the landfill as required by subch. IV of ch. 289, Stats. The report shall include a discussion of all calculations, such as refuse to cover balance computations, base liner and final covering soils materials needs related to available borrow soil volumes, stockpile sizing estimates, required interface shear strength and shear strength of the soil materials where the interfaces evaluated include the upper and lower interfaces for all geosynthetics such as geomembranes, geotextiles, and geosynthetic clay liners, 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.

(14m) ASSESSMENT. The report shall include an assessment of the shear strength and slope stability of soils and wastes in the following scenarios:

(a) Interim and final waste slopes, incorporating in-field waste densities, settlement, leachate recirculation, precipitation and any other factors that affect strength of waste or final cover. The analyses shall include interior slopes between filling phases and exterior slopes after attainment of waste final grades.

(b) Haul roads and access ramps on interim slopes at waste final grades and on final cover, including passive load of cover soils and dynamic loads due to construction, hauling and maintenance vehicles.

(15) FINANCIAL RESPONSIBILITY ANALYSIS. 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 as well as long-term care shall also be specified.

(16) APPENDIX. 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 such as draft leachate treatment agreements or signed soil borrow agreements, documents related to long-term care funding, documents related to placing a notification on the deed of properties with wells within the 1200-foot setback and other appropriate information.

Notes

Wis. Admin. Code Department of Natural Resources § NR 514.06

Cr. Register, January, 1988, No. 385, eff. 2-6-88; am. (intro.), (2) , (4), renum. (3) to be (13), (5) to (11), (12) and (15) to be (6) to (12), (14) and (16) and am. (6) (a), (b), (7) (a), (b), (8), (9), (10), (11), (13) and (14), cr. (3), (5), (15), r. (13), (14), Register, June, 1996, No. 486, eff. 7-1-96; CR 04-077: cr. (14m) Register November 2005 No. 599, eff. 12-1-05; CR 05-020: cr. (6) (c), am. (16) Register January 2006 No. 601, eff. 2-1-06. Amended by, correction in (intro) made under s. 13.92 (4) (b) 7., Stats., Register July 2022 No. 799, eff. 8/1/2022.