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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.
NR 213.14(4)(h) (h) The design mix of asphalt cement and aggregates shall yield a Marshall stability of no less than 1000 with an air void of the compacted mixture no more than 2%.
NR 213.14(4)(i) (i) The binder course shall be compacted to at least 93% 50 blow Marshall. The surface course shall be compacted to at least 95% 50 blow Marshall.
NR 213.14(4)(j) (j) The surface course shall be applied such that a minimum 2 foot overlap is to be provided over the binder course joints.
NR 213.14(4)(k) (k) Curbing or side walls shall be provided at the perimeter of the base and be sealed to prevent exfiltration at the seams and undercutting by rainfall. Dumping pads shall be paved and contiguous with the structure.
NR 213.14(4)(L) (L) A qualified inspector shall be on site during construction to document compaction measurements. Compaction shall be measured with a nuclear density meter, or other approved method.
NR 213.14 Note Note: The department believes that properly mixed and applied bituminous concrete is a suitable construction material for by-product stacking structures. However, since longer-term studies have not yet been performed, the long-term performance of this material with this particular use cannot be predicted at this time.
NR 213.14 Note Note: Copies of WDOT standard 304.2.6 may be inspected at the offices of the department, the secretary of state and the legislative reference bureau.
NR 213.14(5) (5)Concrete structure design and construction criteria.
NR 213.14(5)(a)(a) The pavement structure shall consist of a minimum of 10 inches of well drained soil 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 4 inches of crushed aggregate and the surface course shall be 6 inches of concrete.
NR 213.14(5)(b) (b) Curbing or side walls shall surround the base and be sealed to prevent exfiltration at the seams and undercutting by rainfall. Dumping areas shall be paved and contiguous with the structure.
NR 213.14(5)(c) (c) The surface course curbing and walls shall be protected from chemical and biological decomposition with an appropriate sealant which is resistant to degradation from sunlight.
NR 213.14(5)(d) (d) 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(5)(e) (e) Coarse aggregates of the concrete mixture shall be well graded between the limits specified in size no. 1 gradation in accordance with sec. 501.3.6.4.5 WDOT standards for road and bridge construction.
NR 213.14(5)(f) (f) The concrete shall meet the mix grade A air-entrained concrete classification and a water to cement ratio of no greater than 0.45 with 6% air plus or minus 1%.
NR 213.14(5)(g) (g) Metal reinforcing rods or mesh shall be provided in the pavement structure.
NR 213.14(5)(h) (h) Contraction joints shall be placed no greater than 20 feet apart in all directions.
NR 213.14(5)(i) (i) Contraction and construction joints shall be sealed with appropriate caulk or sealant to prevent leakage. The proposed sealant shall be specified in the plans and specifications.
NR 213.14 Note Note: Copies of WDOT standards 304.2.6 and 501.3.6.4.5 may be inspected at the offices of the department, the secretary of state and the legislative reference bureau.
NR 213.14(6) (6)Annual inspection and maintenance. All visible cracks shall be cleaned and sealed. A report summarizing the inspection and maintenance performed to the by-product solids stack structure shall be prepared and submitted to the department in accordance with the WPDES permit. An operation and maintenance plan shall also be included in the plans and specifications.
NR 213.14(7) (7)Leachate collection systems.
NR 213.14(7)(a)(a) Design and construction criteria for a leachate collection system, consisting of conveyance and storage, shall be included with the plans and specifications. The system shall be totally contained and constructed in accordance with subch. II or s. NR 213.15.
NR 213.14(7)(b) (b) The leachate storage structure shall be sized to provide adequate capacity to store the leachate generated between disposal events and normal rainfall as well as the larger volume generated by a 10-year, 24 hour rainfall event. The length of time between disposal events shall be specified in the management plan required in ch. NR 214, and shall take into account such factors as availability of labor, leachate disposal equipment, and availability of leachate disposal sites.
NR 213.14(8) (8)Surface water runoff diversion structures. A surface water runoff diversion system shall be provided in the storage structure design.
NR 213.14 History History: Cr. Register, June, 1990, No. 414, eff. 7-1-90.
NR 213.15 NR 213.15 Storage tanks. Storage tanks shall be designed, installed and maintained to prevent leaks due to corrosion or structural failure.
NR 213.15(1) (1) Underground storage tanks shall be designed such that:
NR 213.15(1)(a) (a) They are cathodically protected against corrosion, constructed of noncorrosive material, constructed of coated steel with noncorrosive material or its equivalent.
NR 213.15(1)(b) (b) The materials of the tank or liner are compatible with the stored substance.
NR 213.15(1)(c) (c) An inspection manhole, vent and high water alarm are provided.
NR 213.15(1)(d) (d) Periodic testing shall be performed, such as pressure testing, to ensure the integrity of the tank is maintained.
NR 213.15(2) (2) Above-ground storage tanks shall be designed such that:
NR 213.15(2)(a) (a) They are constructed of noncorrosive material, steel lined with noncorrosive material, or its equivalent.
NR 213.15(2)(b) (b) The materials of the tank or liner are compatible with the stored substance.
NR 213.15(2)(c) (c) An inspection manhole, vent and high water alarm are provided.
NR 213.15(2)(d) (d) The department may require a containment dike around storage tanks in locations where water pollution would potentially be caused by a spill or overflow.
NR 213.15 History History: Cr. Register, June, 1990, No. 414, eff. 7-1-90.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.