New York Codes, Rules and Regulations › Title 6 - DEPARTMENT OF ENVIRONMENTAL CONSERVATION › Chapter III - AIR RESOURCES › Subchapter A - PREVENTION AND CONTROL OF AIR CONTAMINATION AND AIR POLLUTION › Part 208 - Landfill Gas Collection And Control Systems For Certain Municipal Solid Waste Landfills › Section 208.6 - Compliance provisions

Current through Register Vol. 46, No. 28, July 10, 2024
(a)
				  Except as provided in section
				  208.3(b)(2)(i)(b) 
				  of this Part, the specified methods in paragraphs (1) through (6) of this
				  subdivision shall be used to determine whether the gas collection system is in
				  compliance with section
				  208.3(b)(2)(i) 
				  of this Part.
(1) For the purposes of
				  calculating the maximum expected gas generation flow rate from the landfill to
				  determine compliance with section
				  208.3(b)(2)(ii)(a)
				  (1)  of this Part, one of the following
				  equations shall be used. The k and L o kinetic factors
				  should be those published in the most recent Compilation of Air Pollutant
				  Emission Factors (AP-42) or other site specific values demonstrated to be
				  appropriate and approved by the department. If k has been determined as
				  specified in section
				  208.5(a)(4)
				  of this Part, the value of k determined from the test shall be used. A value of
				  no more than 15 years shall be used for the intended use period of the gas
				  mover equipment. The active life of the landfill is the age of the landfill
				  plus the estimated number of years until closure.
(i) For sites with unknown year-to-year solid
				  waste acceptance rate:
Q m = 2L o R
					 (e-kc - e-kt)
where,
Q m = maximum expected gas
					 generation flow rate, cubic meters per year
L o = methane generation potential,
					 cubic meters per megagram solid waste
R = average annual acceptance rate, megagrams per year k =
					 methane generation rate constant, year1
t = age of the landfill at equipment installation plus the
					 time the owner or operator intends to use the gas mover equipment or active
					 life of the landfill, whichever is less. If the equipment is installed after
					 closure, t is the age of the landfill at installation, years c = time since
					 closure, years (for an active landfill c = 0 and e-kc = 1)
(ii) For sites with known year-to-year solid
				  waste acceptance rate:
n
Q M = <<SIGMA>> 2 k L
					 o M i (e-kt i)
i = 1
where,
Q M = maximum expected gas
					 generation flow rate, cubic meters per year k = methane generation rate
					 constant, year-1
L o = methane generation potential,
					 cubic meters per megagram solid waste
M i = mass of solid waste in the ith
					 section, megagrams t i = age of the ith section,
					 years
(iii) If a collection
				  and control system has been installed, actual flow data may be used to project
				  the maximum expected gas generation flow rate instead of, or in conjunction
				  with, the equations in subparagraphs (i) and (ii) of this paragraph. If the
				  landfill is still accepting waste, the actual measured flow data will not equal
				  the maximum expected gas generation rate, so calculations using the equations
				  in subparagraph (i) or (ii) of this paragraph or other methods shall be used to
				  predict the maximum expected gas generation rate over the intended period of
				  use of the gas control system equipment.