NR 213.13(1)(e) (e) The stack is located at least 500 feet from an inhabited dwelling except that this distance may be reduced with the written permission from the owner and occupants of the residence.

NR 213.13(1)(f) (f) The stack is located at least 5 vertical feet from the groundwater or bedrock.

NR 213.13(1)(g) (g) The base of the stack is located on a site that does not exceed 2% slope.

NR 213.13(1)(h) (h) The stack is located at least 200 feet from the nearest surface water.

NR 213.13(2) (2) Leachate management. Leachate from the stack shall be collected and landspread in a manner that prevents surface water and groundwater pollution.

NR 213.13(3) (3) Documentation of compliance. Documentation of compliance with subs. (1) and (2) shall be submitted to the department for review and acceptance prior to use of the site for stacking of sweet corn silage.

NR 213.13 History History: Cr. Register, June, 1990, No. 414, eff. 7-1-90.

NR 213.14 NR 213.14 Stack structures for by-product solids. This section shall be applicable to all by-product solids stacks except those stacks identified in s. NR 213.02 (2) (e) or those stacks which meet the requirements of s. NR 213.13.

NR 213.14(1) (1) General submittal requirements.

NR 213.14(1)(a) (a) An engineering report and plans and specifications shall be submitted to the department for approval in accordance with s. 281.41, Stats., prior to initiating construction.

NR 213.14 Note Note: The department recommends that whenever possible, a preliminary engineering report outlining the project and including any available information required under par. (b) be submitted prior to submittal of final plans.

NR 213.14(1)(b) (b) The engineering report shall outline the entire project and include, at a minimum, the following information: legal description of the site subgrade conditions, soil classification, percent soil passing a No. 200 sieve, soil plasticity index, depth to bedrock and to seasonal high groundwaters, waste sources, and waste volume and materials and specifications of the proposed structure.

NR 213.14(2) (2) General design and construction criteria.

NR 213.14(2)(a) (a) The base, walls and joints of the by-product solids stack structure shall be constructed for maximum containment of any leachate generated such that all leachate is conveyed to and stored in an approved leachate storage facility.

NR 213.14(2)(b) (b) The minimum slope for the base of the structure shall be 2%.

NR 213.14(2)(c) (c) Construction of bituminous concrete structures and concrete structures shall comply with the WDOT standards for road and bridge construction. Other materials for stack structures may be proposed in the plans and specifications submitted to the department. Approval of any material shall be based on the capability of the material to meet the purpose of this chapter.

NR 213.14 Note Note: Copies of WDOT standards may be inspected at the offices of the department, the secretary of state and the legislative reference bureau.

NR 213.14(3) (3) Site preparation.

NR 213.14(3)(a) (a) Prior to construction, the site area shall be cleared of all vegetation, brush, roots and stumps. Materials encountered above the required elevations shall be excavated and all depressions in the subgrade shall be filled. The subgrade shall be smoothed, shaped and compacted to the required grade, section and uniform density. The subgrade shall be scarified to the depth necessary for shaping and compaction. Stones over 6 inches in diameter shall be removed during site preparation.

NR 213.14(4) (4) Bituminous concrete structure design and construction criteria.

NR 213.14(4)(a) (a) The pavement structure shall consist of a minimum of 10 inches of well drained subgrade or subbase. A suitable subgrade is one with 35% or less passing a No. 200 sieve, and a plasticity index of 10 or less. The base course shall contain a minimum 8 inches of crushed aggregate and the surface course shall be 3 inches of bituminous concrete pavement in 2 layers.

NR 213.14(4)(b) (b) The aggregates of the base course shall conform to the gradation requirements for gradation No. 2 in accordance with sec. 304.2.6 WDOT standards for road and bridge construction.

NR 213.14(4)(c) (c) The aggregates of the bituminous concrete pavement may not be of dolomitic or limestone origin.

NR 213.14(4)(d) (d) The bituminous concrete pavement shall be laid in 2 lifts of a minimum 13⁄4 inch binder course and 11⁄4 inch surface course.

NR 213.14(4)(e) (e) The bituminous mix design laboratory sheet shall be submitted with the plans and specifications.

NR 213.14(4)(f) (f) Aggregates in the binder course shall conform to the gradation requirements for gradation No.

NR 213.14(4)(f)2. 2. Aggregates in the surface course shall conform to the gradation requirements for gradation No. 3. in accordance with sec. 304.2.6., WDOT standards for road and bridge construction.

NR 213.14(4)(g) (g) The asphalt shall meet the 120-150 penetration grade in accordance with AASHTO T49.

NR 213.14 Note Note: Copies of AASHTO T49 may be inspected at the offices of the department, the secretary of state and the legislative reference bureau.