NR 503.10(4)(a)13.13. A sign acceptable to the department shall be posted at the entrance of any landfill operated for public use which indicates the landfill name, the hours of operation, waste types accepted, penalty for unauthorized use, necessary safety precautions and any other pertinent information. NR 503.10(4)(a)14.14. The landfill shall be surrounded with rapidly growing trees, shrubbery, fencing, berms or other appropriate means to screen it from the surrounding area and to provide a wind break. NR 503.10(4)(a)16.16. Provisions shall be made for back-up equipment in the event of operating equipment breakdown. NR 503.10(4)(a)17.17. A minimum separation distance of 100 feet shall be maintained between the limits of solid waste filling and adjacent property. The department may require additional separation distance if necessary to provide for vehicle access, drainage, monitoring, gas migration control, separation to adjacent homes or other landfill development factors. NR 503.10(4)(a)18.18. All topsoil within the landfill construction limits shall be salvaged and stored within the property boundaries for use in landfill closure. All stockpiled soil material which is not anticipated to be used within 6 months shall be seeded. NR 503.10(4)(a)19.19. All access roads to the active area of the operation shall be of all-weather construction and shall be maintained in good condition. NR 503.10(4)(b)(b) All areas of the landfill property, including areas of temporary disturbance, with the potential for off-site migration of sediment shall be designed, constructed, operated and maintained according to the applicable requirements of s. NR 503.09 (4), and technical standards developed under subch. V of ch. NR 151, which include the following: NR 503.10(4)(b)1.1. Storm water shall be diverted away from the working area and areas already filled with solid waste. NR 503.10(4)(b)2.2. Storm water from upslope areas shall be diverted around disturbed areas to minimize erosion, entrained sediment and the amount of water contacting the disturbed area. NR 503.10(4)(b)3.3. The size and duration of disturbances shall be minimized, to the extent practicable, to minimize off-site sediment migration. NR 503.10(4)(b)4.4. While the site is disturbed, temporary measures shall be used to trap sediment and off-site sediment migration. This could include gravel breaks or the equivalent to minimize the transport of sediment off-site. NR 503.10(4)(b)5.5. Runoff channels shall be protected to prevent scour and erosion that generates sediment. NR 503.10 NoteNote: The technical standards developed by the Wisconsin department of natural resources, runoff management program are available at http://dnr.wi.gov/topic/stormwater/standards/ or can be obtained from the department of natural resources, bureau of waste management, 101 S. Webster Street, P.O. Box 7921, Madison, WI 53707-7921, (608) 266-2111, waste.management@dnr.state.wi.us. Copies are also available for inspection at the offices of the legislative reference bureau and the secretary of state. NR 503.10(4)(c)(c) Storm water drainage ditches, structures and sedimentation basins shall be cleaned and maintained so that they properly control storm water and limit entrained sediment in accordance with approved engineering designs. The department may waive this requirement on a case-by-case basis for existing landfills. NR 503.10(4)(d)(d) All areas of the landfill which do not contain solid waste and are planned for vegetative cover shall be topsoiled, seeded and mulched as soon as practical, but no later than 90 days after completion of construction or by October 15, whichever is earlier and, if construction is completed after September 15, no later than June 15 of the following year. This includes, but is not limited to, the landfill entrance, drainage ditches and surrounding areas. Erosion control measures shall be placed within 30 days after completion of construction. The seed type and amount of fertilizer applied shall be selected according to the type and quality of topsoil, its compatibility with native vegetation, and the final use. Unless otherwise approved by the department in writing, seed mixtures and sowing rates shall be those specified for right–of–ways according to section 630, 2003 edition of the Wisconsin department of transportation standard specifications for highway and structure construction and the 2004 supplemental specifications. NR 503.10 NoteNote: The 2003 edition of the Wisconsin department of transportation standard specifications for highway and structure construction and any annual supplemental specifications are available at http://www.dot.wisconsin.gov/business/engrserv/procedures.htm or can be obtained from the department of natural resources, bureau of waste management, 101 S. Webster Street, P.O. Box 7921, Madison, WI 53707-7921, (608) 266-2111, waste.management@dnr.state.wi.us. Copies are also available for inspection at the offices of the legislative reference bureau and the secretary of state. NR 503.10(4)(e)(e) Disposal of solid waste shall begin at the edge of each phase. Solid waste shall be pushed out over the granular blanket. Vehicles may not be driven directly on the granular blanket. Disposal operations shall be conducted as follows: NR 503.10(4)(e)1.1. Except for portions of the sideslope greater than 10 feet above the base liner, a layer of solid waste at least 4 feet thick or an adequate amount of other frost protection material shall be placed over the granular blanket in all portions of the lined area prior to December 1st of the year following the year the clay liner was constructed. After this date, solid waste may not be placed on any portion of the liner or lower 10 feet of the sideslope not covered with a 4-foot thick layer of solid waste or other adequate frost protection material. Those portions of the liner or lower 10 feet of sideslope not covered with a 4-foot thick layer of solid waste or other frost protection material by this date shall be investigated for effects from freeze-thaw as specified by the department and shall be repaired and recertified during the next construction season, prior to waste placement. The requirements of this paragraph may be waived by the department. NR 503.10(4)(e)2.2. To provide for maximum compaction after the initial 4-foot lift of waste is placed, each single layer of solid waste shall be spread and compacted in 2-foot layers. An alternative plan for compaction of waste may be approved by the department. NR 503.10(4)(f)(f) Effective means shall be utilized to prevent the migration of explosive gases generated by the waste fill. At no time may the concentration of explosive gases in any landfill structure, excluding the leachate collection system or gas control system components exceed 25% of the lower explosive limit for those gases. At no time shall the concentration of explosive gases in the soils or air within 200 feet of or beyond the landfill property boundary exceed the lower explosive limit for those gases. The department may require that the concentration of explosive gases not exceed the detectable levels for that gas at the landfill property boundary. NR 503.10(4)(g)(g) Leachate shall be removed from all collection tanks, manholes, lift stations, sumps or other structures used for leachate storage as it is produced, including hours when the landfill is closed, such as overnight and weekends. Leachate shall be managed as follows: NR 503.10(4)(g)1.1. All leachate removed from a leachate collection system shall be disposed of at a wastewater treatment facility approved by the department and capable of accepting the leachate in accordance with the requirements of its WPDES permit. The landfill owner or operator shall immediately notify the department of any change in the availability of the designated wastewater treatment facility to accept or dispose of the leachate removed from the landfill. Waste may not be accepted at the landfill unless leachate is being managed in accordance with the landfill’s approved plan of operation and the requirements of this section. NR 503.10(4)(g)2.2. Any liquid which comes in contact with waste or accumulates in a portion of the landfill where active waste disposal operations are occurring shall be handled as leachate and properly treated as specified in subd. 1. unless otherwise approved by the department in writing. NR 503.10(4)(g)3.3. All leachate collection lines shall be cleaned with a water jet cleanout device with a maximum pressure of 10,000 pounds per square inch immediately after construction, and annually thereafter. NR 503.10(4)(i)(i) For all landfills that do not have a department-approved plan for phased development and closure, by October 15th of each year, all areas that are at final grades shall be capped, topsoiled and seeded unless otherwise approved by the department. NR 503.10(4)(j)(j) Any person who maintains or operates a landfill, or who permits use of property for that purpose shall, when the fill area or portion thereof reaches final grade, or when the department determines that closure is required, cease to accept solid waste and close the landfill or portion thereof in accordance with the plan approval issued by the department and the following minimum practices unless otherwise approved by the department in writing: NR 503.10(4)(j)1.1. At least 120 days prior to closing the landfill, the owner or operator shall notify the department in writing of the intent to close the landfill and the expected date of closure. Prior to department notification, the owner or operator shall notify all users of the landfill of the intent to close the landfill so that alternative disposal options can be arranged.