NR 440.75(9)(c)1.a.a. For enclosed combustors except for boilers and process heaters with design heat input capacity of 44 megawatts, (150 million British thermal units per hour) or greater, all 3-hour periods of operation during which the average combustion temperature was more than 28°C below the average combustion temperature during the most recent performance test at which compliance with sub. (3) (b) 2. c. was determined. NR 440.75(9)(c)1.b.b. For boilers or process heaters, any change in the location at which the vent stream is introduced into the flame zone as required under par. (b) 3. NR 440.75(9)(c)2.2. Keep up-to-date, readily accessible continuous records of the indication of flow to the control device or the indication of bypass flow or records of monthly inspections of car-seals or lock-and-key configurations used to seal bypass lines, specified under sub. (7). NR 440.75(9)(c)3.3. If using a boiler or process heater with a design heat input capacity of 44 megawatts or greater to comply with sub. (3) (b) 2. c., keep an up-to-date, readily accessible record of all periods of operation of the boiler or process heater. NR 440.75 NoteNote: Examples of records of operation include records of steam use, fuel use or monitoring data collected pursuant to other department or federal regulatory requirements.
NR 440.75(9)(c)4.4. If seeking to comply with the provisions of this section by use of an open flare, keep up-to-date, readily accessible continuous records of the flame or flare pilot flame monitoring specified under sub. (7) (c), and up-to-date, readily accessible records of all periods of operation in which the flame or flare pilot flame is absent. NR 440.75(9)(d)(d) Except as provided in sub. (3) (b) 2. a. 2), keep for the life of the collection system an up-to-date, readily accessible plot map showing each existing and planned collector in the system and providing a unique identification location label for each collector. NR 440.75(9)(e)(e) Each owner or operator subject to the provisions of this section shall keep up-to-date, readily accessible records of the installation date and location of all newly installed collectors as specified under sub. (6) (b). NR 440.75(9)(f)(f) Each owner or operator subject to the provisions of this section shall keep readily accessible documentation of the nature, date of deposition, amount and location of asbestos-containing or nondegradable waste excluded from collection as provided in sub. (10) (a) 3. a. as well as any nonproductive areas excluded from collection as provided in sub. (10) (a) 3. b. NR 440.75(9)(g)(g) Except as provided in sub. (3) (b) 2. a. 2), each owner or operator subject to the provisions of this section shall keep for at least 5 years up-to-date, readily accessible records of all collection and control system exceedances of the operational standards in sub. (4), the reading in the subsequent month whether or not the second reading is an exceedance, and the location of each exceedance. NR 440.75(9)(h)(h) Landfill owners or operators who convert design capacity from volume to mass or mass to volume to demonstrate that landfill design capacity is less than 2.5 million megagrams or 2.5 million cubic meters, as provided in the definition of “design capacity”, shall keep readily accessible, on-site records of the annual recalculation of site-specific density, design capacity, and the supporting documentation. Off-site records may be maintained if they are retrievable within 4 hours. Either paper copy or electronic formats are acceptable. NR 440.75(10)(a)(a) Each owner or operator seeking to comply with sub. (3) (b) 2. a. shall site active collection wells, horizontal collectors, surface collectors or other extraction devices at a sufficient density throughout all gas producing areas using the following procedures unless alternative procedures have been approved by the department as provided in sub. (3) (b) 2. a. 3) and 4): NR 440.75(10)(a)1.1. The collection devices within the interior and along the perimeter areas shall be certified to achieve comprehensive control of surface gas emissions by a professional engineer. The design for the collection system shall address depths of refuse, refuse gas generation rates and flow characteristics, cover properties, gas system expandability, leachate and condensate management, accessibility, compatibility with filling operations, integration with closure end use, air intrusion control, corrosion resistance, fill settlement and resistance to the refuse decomposition heat. NR 440.75(10)(a)2.2. The sufficient density of gas collection devices determined in subd. 1. shall address landfill gas migration issues and augmentation of the collection system through the use of active or passive systems at the landfill perimeter or exterior. NR 440.75(10)(a)3.3. The placement of gas collection devices determined in subd. 1. shall control all gas producing areas, except as follows: NR 440.75(10)(a)3.a.a. Any segregated area of asbestos or nondegradable material may be excluded from collection if documented as provided under sub. (9) (f). The documentation shall provide the nature, date of deposition, location and amount of asbestos or nondegradable material deposited in the area, and shall be provided to the department upon request. NR 440.75(10)(a)3.b.b. Any nonproductive area of the landfill may be excluded from control, provided that the total of all excluded areas can be shown to contribute less than 1% of the total amount of NMOC emissions from the landfill. The amount, location and age of the material shall be documented and provided to the department upon request. A separate NMOC emissions estimate shall be made for each section proposed for exclusion, and the sum of all the sections shall be compared to the NMOC emissions estimate for the entire landfill. Emissions from each section shall be computed using the following equation: where:
Qi is the NMOC emission rate from the ith section in megagrams per year
k is the methane generation rate constant in year-1
Lo is the methane generation potential in cubic meters per megagram of solid waste
Mi is the mass of the degradable solid waste in the ith section in megagram
ti is the age of the solid waste in the ith section in years
CNMOC is the concentration of nonmethane organic compounds in parts per million by volume
3.6 x 10-9 is a conversion factor
NR 440.75(10)(a)4.4. When calculating emissions using the equation in subd. 3. b., the values for k and CNMOC determined in field testing shall be used if field testing has been performed in determining the NMOC emission rate or the radii of influence (the distance from the well center to a point in the landfill where the pressure gradient applied by the blower or compressor approaches zero). If field testing has not been performed, the default values for k, Lo and CNMOIC provided in sub. (5) (a) 1. or the alternative values from sub. (5) (a) 5. shall be used. The mass of nondegradable solid waste contained within the given section may be subtracted from the total mass of the section when estimating emissions provided the nature, location, age and amount of the nondegradable material is documented as provided in subd. 3. a. NR 440.75(10)(b)(b) Each owner or operator seeking to comply with sub. (3) (b) 2. a. 1) shall construct the gas collection devices using the following equipment or procedures: