Chapter NR 516

NR 516.07(2m)(b)2. 2. One moisture–density curve or line of optimums analysis shall be developed for every 5,000 cubic yards or less of soil placed and for each major soil type utilized. At least 5 points shall be established on each curve. If a line of optimums analysis is performed, at least 2 curves shall be included for each analysis. A representative sample for every 5,000 cubic yards or less of soil placed shall be analyzed for grain size distribution through the .002 millimeter particle size and for Atterberg limits. If apparent changes in soil quality are observed during soil placement, a one-point Proctor analysis shall be utilized to verify the applicability of previously analyzed moisture-density curves.

NR 516.07(3) (3) Drainage blanket. During placement of the leachate drainage blanket over the liner or the granular drain layer in the final cover, the following testing shall be performed:

NR 516.07(3)(a) (a) If sand is used, one grain size distribution to the #200 sieve for each 1,000 cubic yards of material placed. For lesser volumes, a minimum of 4 samples shall be tested. If washed stone or gravel is used, one grain size distribution to the #200 sieve for each 5,000 cubic yards of material placed. For smaller landfills where construction of a liner or cap area involves lesser volumes, a minimum of 2 samples shall be tested.

NR 516.07(3)(b) (b) One remolded laboratory hydraulic conductivity test for each 2,500 cubic yards of sand drainage material placed. The samples shall be tested at the anticipated field density. The moisture content and density of each sample shall be recorded. The department may require that a portion of the hydraulic conductivity tests be performed using leachate. For smaller landfills where construction of a liner or cap area involves lesser volumes, a minimum of 2 samples shall be tested. No hydraulic conductivity tests are required if washed stone or gravel is used.

NR 516.07(3)(c) (c) The department may require that chemical durability testing of the material when exposed to leachate be performed.

NR 516.07(4) (4) Bedding material. During placement of leachate collection pipes, lysimeter pipes, and groundwater collection pipes, the following tests shall be performed on the backfill material:

NR 516.07(4)(a) (a) One grain size distribution to the #200 sieve for each 1,000 linear feet of trench. For construction projects with combined trench lengths of less than 3,000 feet, a minimum of 3 grain size analyses shall be conducted. Bedding for solid wall piping associated with transfer of leachate, groundwater or lysimeter fluids shall be tested at the same frequency but only to the #4 sieve.

NR 516.07(4)(b) (b) One grain size distribution to the #200 sieve for each 500 cubic yards of drainage material placed in collection sumps.

NR 516.07(4)(c) (c) The department may require that chemical durability testing of the material when exposed to leachate and laboratory hydraulic conductivity testing be performed.

NR 516.07(5) (5) Final cover. During construction of the final cover system, the following tests shall be performed:

NR 516.07(5)(a) (a) Thickness of a support layer in the final cover for landfills which accept primarily papermill sludge or other low strength wastes on a 100-foot grid. The source and composition of the support layer shall be documented by a description of the materials used in the support layer.

NR 516.07(5)(b) (b) One grain size distribution to the #200 sieve for each 1,000 cubic yards of gravel used for pipe bedding and drain outlets for the drain layer and toe drain.

NR 516.07(5)(c) (c) The department may require testing of samples of geotextiles, geocomposite drains or other geosynthetic materials used in construction of the final cover system.

NR 516.07 History History: Cr. Register, January, 1988, No. 385, eff. 2-6-88; r. (4) (b), (5), renum. (intro.), (1), (3), (4) (intro.), (a), (c), (5) (intro.), (b) from NR 516.05 (intro.), (1), (2), (3) (intro.), (a), (b), (4) (intro.), (a) and am. (intro.), (1) (intro.), (a), (b), (c), (3) (intro.), (a), (b), (4) (intro.).) (a), (5) (intro.) (b), cr. (2), (4) (b), (5) (a), (c), Register, June, 1996, No. 486, eff. 7-1-96; am. (2) (a) 3. and (b), Register, August, 1997, No. 500, eff. 9-1-97; CR 04-077: cr. (2) (d) Register November 2005 No. 599, eff. 12-1-05; CR 05-020: cr. (1m), (2) (c) 5. and (2m), am. (2) (b) Register January 2006 No. 601, eff. 2-1-06; CR 06-026: am. (2) (c) 2., Register December 2006 No. 612, eff. 1-1-07.

NR 516.08 NR 516.08 Testing requirements for landfills with extended collection lines.

NR 516.08(1) (1) Requirements. Landfills shall meet the requirements of subs. (2) and (3) where they will accept municipal solid waste and contain leachate collection lines that exceed 1,200 feet from the end of each cleanout to the toe of the opposite slope. Where the requirements of this section differ from other requirements of this chapter, these requirements shall take precedence.

NR 516.08(2) (2) Pipe and trench. In addition to the information specified in s. NR 516.04 (3) (d), reports documenting the construction of all new landfill areas shall include the following information, at a minimum:

NR 516.08(2)(a) (a) Observations of collection trench and leachate collection pipe installation. Observations shall verify that collection pipe is handled and placed in a manner that prevents holes from being blocked by mud and that assures that holes are located 45 degrees from the springline. Records shall note any changes in alignment of collection trenches or leachate collection pipes and construction methods which produce obstructions or interference with pipe cleaning equipment. Specifications of pipe, specialty fittings and sweep bends installed in construction shall be included in tables or appendices to reports. Documentation of sweep bends shall include the fabricated or field-achieved radius of bend and conformance with minimum radii of bend specified by approved plans or required by the department’s plan approval. Reports shall describe methods used to provide support and cover for collection pipe, specialty fittings and sweep bends.

NR 516.08(2)(b) (b) Documentation of the presence of registered engineers or qualified technicians providing quality assurance monitoring during all aspects of installation of leachate collection pipe and pipe bedding and placement of aggregate cover over the pipe.

NR 516.08(2)(c) (c) Documentation of initial leachate collection pipe cleaning after placement of the leachate collection layer. This documentation shall include, at a minimum:

NR 516.08(2)(c)1. 1. The equipment, methods and chemicals that were used successfully to insert cleanout devices through all leachate collection pipes from each access point to, at a minimum, the toe of the opposite sideslope.

NR 516.08(2)(c)2. 2. The necessary minimum hose or machine pressures, nozzles, hose materials and other features necessary to achieve successful cleaning of leachate collection pipes.

NR 516.08(2)(c)3. 3. Any significant adaptations needed to complete pipe cleaning, and any problems encountered in pipe cleaning and their resolution.

NR 516.08(2)(c)4. 4. Any repairs or modifications made to the collection piping in response to the pipe cleaning operation.

NR 516.08(2)(c)5. 5. Recommendations to the operator for the necessary equipment, specifications, and operating conditions for future pipe cleaning.

NR 516.08(3) (3) Soil testing. Testing shall be performed during the construction of any landfill areas. At a minimum, this testing shall include test results from a minimum of one hydraulic conductivity test performed on representative samples of drainage media used for the leachate collection blanket and for the leachate collection trench backfill. The test procedure and any adaptations used to accommodate high-capacity drainage material shall be identified.

NR 516.08 History History: CR 04-077: cr. Register November 2005 No. 599, eff. 12-01-05; CR 06-026: am. (1), Register December 2006 No. 612, eff. 1-1-07.

NR 516.09 NR 516.09 Expedited construction documentation approval.

NR 516.09(1) (1) Applicability.

NR 516.09(1)(a) (a) If requested by the owner or operator, this section applies to all proposals for approval of construction documentation, except those identified in par. (b), that would not result in a violation of a statute or administrative rule, and would not require issuance of an exemption by the department. Constructions to which this section applies include, but are not limited to the following:

NR 516.09(1)(a)1. 1. Features located outside the limits of waste that do not provide primary or secondary containment for leachate or landfill gas.

NR 516.09(1)(a)2. 2. Weigh stations, buildings or roads located outside the limits of waste, including building areas used to tip and inspect incoming waste loads.

NR 516.09(1)(a)3. 3. Features that are temporary and will be removed within 2 years, including intermediate cover.

NR 516.09(1)(a)4. 4. Leachate or gas well installation, or leachate recirculation systems.

NR 516.09(1)(a)5. 5. Replacement of damaged or nonfunctional features of gas extraction systems or leachate head wells that do not involve significant changes in design, location or materials of construction.

NR 516.09(1)(a)6. 6. Portions of the final capping system that would not result in a reduced amount of financial assurance.

NR 516.09(1)(a)7. 7. Except as provided under par. (b), other features determined by the department to pose low potential risk of adverse impacts on public health or the environment in the event of improper construction or failure of the constructed feature.

NR 516.09(1)(b) (b) This section does not apply to approval of construction of any of the following:

NR 516.09(1)(b)1. 1. Liners, leachate collection pipes within the landfill or any other component that would require removal of waste to complete future reconstruction of the component, because this is not considered low risk.

NR 516.09(1)(b)2. 2. Any component for which improper construction or failure of the component could result in leachate being released outside the limits of waste fill, because this is not considered low risk, except that approval of construction documentation for the repair of existing components may be submitted under this section.

NR 516.09(1)(b)3. 3. Any portion of the final capping system that would result in a reduced amount of financial assurance.

NR 516.09(1)(b)4. 4. Any component or feature that would result in a violation of the approved plan of operation.

NR 516.09(2) (2) Procedure. A construction documentation report is deemed approved if all of the following occur:

NR 516.09(2)(a) (a) The owner or operator submits a written proposal to the department which describes the construction that has been completed. With the proposal, the owner or operator shall submit a cover letter that includes all of the following:

NR 516.09(2)(a)1. 1. Identification of the applicable subdivision of sub. (1) (a) the construction falls under and a statement requesting review of the construction documentation under the expedited process outlined in this section.

NR 516.09(2)(a)2. 2. A brief description of the proposal.

NR 516.09(2)(b) (b) Either the department does not object to the construction documentation within 30 days after receipt of the notice under par. (a), or the department withdraws its objection to the proposal. Notification by the department that it does not consider construction documentation submitted under sub. (1) (a) 7. to pose a low potential risk of adverse impacts on public health or the environment in the event of improper construction or failure of the feature shall be considered to be an objection, and therefore subject to the dispute resolution process of sub. (3).

NR 516.09(2)(c) (c) The department’s technical review time does not exceed 8 hours to determine whether the proposal is low risk and complete any other tasks necessary to review the request.

NR 516.09(2)(d) (d) The appropriate review fee is paid in accordance with ch. NR 520, Table 3.

NR 516.09(2)(e) (e) All of the following also occur:

NR 516.09(2)(e)1. 1. The construction was completed in a manner consistent with the approved plan of operation, including all construction quality assurance measures.

NR 516.09(2)(e)2. 2. The submittal includes all construction documentation specified by the plan of operation approval, including applicable rules in chs. NR 500 and 516, and specifications provided in the plan of operation report as approved by the department.

NR 516.09(2)(e)3. 3. The applicant properly notified the department of the construction of any features for which a construction inspection is specified by plan approval condition, and for any inspections completed by the department, the appropriate construction inspection fee is paid in accordance with ch. NR 520, Table 3.

NR 516.09(3) (3) Dispute resolution.

NR 516.09(3)(a) (a) If the department objects to an expedited construction documentation approval under sub. (2), the following procedures apply:

NR 516.09(3)(a)1. 1. Within 20 days after the department objects to the construction documentation, the owner or operator may file a request with the secretary of the department for a conference to discuss the reasonableness of the department’s objection to the construction documentation.

NR 516.09(3)(a)2. 2. The secretary may designate appropriate department personnel to confer with the owner or operator regarding the reasonableness of the objection. The designated department personnel shall include supervisory personnel who did not participate in the objection to the construction documentation.

NR 516.09(3)(a)3. 3. The department personnel designated by the secretary shall make arrangements to confer with the owner or operator at the earliest practical time. The department shall promptly notify the owner or operator in writing whether or not the objection to the construction documentation will be withdrawn.

NR 516.09(3)(b) (b) This section does not affect in any manner any other provision of law authorizing administrative or judicial review of a department objection under this section.

NR 516.09 History History: CR 05-020: cr. Register January 2006 No. 601, eff. 2-1-06; correction made under s. 13.93 (2m) (b) 1., Stats., Register January 2006 No. 601.