Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
The owner or operator of an existing municipal solid waste landfill shall calculate the nonmethane organic compound emission rate using the appropriate equation in subdivision (1) or (2): (1) If the actual year-to-year solid waste acceptance rate is known, the mass of nondegradable solid waste may be subtracted from the total mass of solid waste in a particular section of the landfill when calculating the value for mass of solid waste if documentation of the nature and amount of such wastes is maintained; and (2) If the actual year-to-year solid waste acceptance rate is unknown, the mass of nondegradable solid waste may be subtracted from the total mass of solid waste in a particular section of the landfill when calculating the value for the average annual acceptance rate, if documentation of the nature and amount of such wastes is maintained: MNMOC = 2Lo R(e-kc - e-kt)CNMOC(3.6×10-9), where MNMOC = Mass emission rate of nonmethane organic compounds, in megagrams per year; k = Methane generation rate constant, in year−1; Lo = Methane generation potential, in cubic meters per megagram solid waste; Mi = Mass of solid waste in the ith section, in megagrams; R = Average annual acceptance rate, in megagrams per year; t = Age of the landfill, years; ti = Age of the ith section, in years; CNMOC = Nonmethane organic compound concentration, in parts per million by volume as hexane; c = Time since closure, years; for an active landfill c = 0 and e−kc = 1; and 3.6 x 10-9 = Conversion factor.
Source: 46 SDR 64, effective November 25, 2019.