The rate of surcharge for each of the aforementioned constituents shall be as follows:
(A) For biochemical oxygen demand (BOD): 12.8 cents per pound;
(B) For chemical oxygen demand (COD) where BOD cannot be determined: 12.8 cents per pound; and
(C) For suspended solids: 11.9 cents per pound.
(2008 Code, § 2.3.12)