METHOD ONE
A = waste reduction total (tons).
% reduction = A / A+B X 100
(Waste Reduction Total must be determined as provided in LAC 33:VII.10307.B.1.a.)
B = total waste landfilled (tons)
METHOD TWO
% Reduction = 100% - Z
Z = X / Y X 100
X = current year tonnage landfilled.
Y = tonnage landfilled in base year (1989 or another year approved by the administrative authority).
Note: If only volume measurements are available the conversion factor to tons for household garbage is 3.5 cubic yards of household garbage = 1 ton.
La. Admin. Code tit. 33, § VII-10307