OAR 629-041-0010: Actual Cost Formulas

(1) In the event that a fire burns over forest land which includes both grazing land and timberland, the actual cost for grazing land and timberland shall be determined in accordance with the following formulas: (a) Ratio of fire fighting costs applicable to grazing land: C(g) = (G-D) x A1 (T-E) x A2 + (G-D) x A1 (b) Ratio of fire fighting costs applicable to timberland: C(t) = 1.00 - C(g); (c) Total cost of fire suppression: C = C x C(g) + C x C(t). (2) In order to reveal the nature and meaning of the symbols used in the above formulas, such have the following meaning: (a) A1 = Number of acres of grazing land burned by fire; (b) A2 = Number of acres of timberland burned by fire; (c) C = Total cost of fire suppression on both grazing land and timberland; (d) D = Established deductible rate per acre to be applied to eligible firefighting expense on grazing land; (e) E = Established deductible rate per acre to be applied to eligible firefighting expense on timberland; (f) G = Budget rate per acre for grazing land; (g) T = Budget rate per acre for timberland; (h) C(g) = Ratio of total cost applicable to grazing lands; (i) C(t) = Ratio of total cost applicable to timberland. (3) The above formulas are based upon budget rates established pursuant to ORS 477.205 to 477.291, in particular 477.230 and 477.285, in which the Forester is required to determine actual costs in suppressing fire on grazing land and timberland.