South Dakota Administrative Rules › Title 74 - Department of Environment And Natural Resources › Article 74:36 - Air pollution control program › Chapter 74:36:07 - New source performance standards › Section 74:36:07:108 - Specifications for active collection systems for existing municipal solid waste landfills

Current through Register Vol. 51, page 10, July 15, 2024
An active collection system at an existing municipal solid waste
	 landfill shall meet the following specifications:
(1) Each owner or operator 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 Secretary:
(a) The collection devices
  within the interior shall be certified to achieve comprehensive control of
  surface gas emissions by a professional engineer. The following issues shall be
  addressed in the design: 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, resistance to the refuse decomposition heat, and ability to
  isolate individual components or sections for repair or troubleshooting without
  shutting down entire collection system;
(b) The sufficient density of gas collection
  devices 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;
(c) The
  placement of gas collection shall control all gas producing areas, except as
  follows:
(i) Any segregated area of asbestos
  or nondegradable material may be excluded from collection if documented. 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 Secretary upon request;
(ii) Any nonproductive area of the landfill
  may be excluded from control, provided the total of all excluded areas can be
  shown to contribute less than one percent of the total amount of nonmethane
  organic compound emissions from the landfill. The amount, location, and age of
  the material shall be documented and provided to the Secretary upon request. A
  separate nonmethane organic compound emissions estimate shall be made for each
  section proposed for exclusion, and the sum of all such sections shall be
  compared to the nonmethane organic compound emissions estimate for the entire
  landfill.
(iii) The nonmethane
  organic compound emissions from each section proposed for exclusion shall be
  computed using the following equation:
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Qi = nonmethane organic compound emission rate
	 from the ith section, megagrams per year;
k = Methane generation rate constant,
	 year-1;
LO = Methane generation potential, cubic meters
	 per megagram solid waste;
Mi = Mass of the degradable solid waste in the
	 ith section, megagram;
ti = Age of the solid waste in the
	 ith section, years;
CNMOC = Nonmethane organic compound
	 concentration, parts per million by volume; and
3. 6×10-9 = Conversion
	 factor.
(iv) If the owner or
  operator is proposing to exclude, or cease gas collection and control from,
  nonproductive physically separated closed areas that already have gas
  collection systems, nonmethane organic compound emissions from each physically
  separated closed area shall be computed using either the equation in §
											74:36:07:143 or subdivision
  74:36:07:131(1)(c)(iii);
(d) The values for methane generation rate
  constant and nonmethane organic compound concentration determined in field
  testing shall be used if field testing has been performed in determining the
  nonmethane organic compound emission rate or the radii of influence which is
  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 methane generation rate
  constant, methane generation potential, and nonmethane organic compound
  concentration provided in §§
										74:36:07:99 to 7:36:07:110,
  inclusive, or the alternative values from §§
										74:36:07:99 to 7:36:07:110,
  inclusive, 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 subdivision (1)(c)(i) of
  this section;