Okla. Admin. Code § 252:515-27-8

Current through Vol. 42, No. 4, November 1, 2024

Section 252:515-27-8 - Economic life of disposal facility

(a)New land disposal sites. The economic life of a new land disposal facility shall be based on the area to be initially permitted for waste disposal, not on the total permitted area.

(1)Economic life. For the purposes of determining the pay-in period for a trust fund or escrow account used as a financial assurance mechanism, or another approved mechanism that allows pay-in over a specified period of time, the economic life for a new land disposal facility shall be the lesser of fifteen (15) years from the initial receipt of waste or the life as calculated in accordance with (2) of this Subsection.

(2)Calculation. The life shall be calculated according to the following formula: L = {[V -(Px V)] x D} ÷ W, where

(A) "L" equals the life of the disposal facility, in years;

(B) "V" equals the total volume of airspace in cubic yards available for waste disposal and daily cover. V shall be calculated from the top of the protective layer to final contours minus the amount of air space taken up by final cover;

(C) "P" is the anticipated percentage of V that will be taken up by daily cover. Until an alternative value based on a history of operational practice can be documented, including the use of alternative covers, P must not be less than 20% (0.20);

(D) "D" is the anticipated density of waste compacted in place in pounds per cubic yard. Until an alternative value based on a history of operational practice can be documented, D must not be more than 1000 pounds per cubic yard (1000 lbs/cy); and

(E) "W" is the amount of waste expected to be received during one year of operation in pounds per year. Until the owner/operator can document actual waste received based on a history of operational practice, W must be calculated at 4.4 pounds per capita per day multiplied by 365 days per year multiplied by the population served.

(b)Existing land disposal sites.

(1) For existing land disposal facilities, L shall be based on the remaining areas approved for waste disposal, according to the formula in paragraph (a)(2). W shall be determined based on scale records for the previous 12 months.

(2)Economic life. For the purposes of determining the pay-in period for a trust fund or escrow account used as a financial assurance mechanism, or another approved mechanism that allows pay-in over a specified period of time, the economic life for an existing land disposal facility shall be the lesser of fifteen (15) years from April 9, 1997, or the life as calculated in accordance with (a)(2) and (b) of this Section.

(c)Annual update. No later than April 9^th of each year, the owner/operator of a land disposal facility, other than generator-owned and operated non-hazardous industrial waste monofills, shall submit calculations of the remaining life of the facility as of December 31^st of the previous year. The remaining life shall be the actual life as calculated in accordance with (a)(2) and (b) of this Section, not the maximum economic life.

Okla. Admin. Code § 252:515-27-8

Added at 20 Ok Reg 1151, eff 6-1-03

Amended by Oklahoma Register, Volume 39, Issue 24, September 1, 2022, eff. 9/15/2022