(a) An extra strength surcharge is hereby established for those users who produce wastewater with a five-day biochemical oxygen demand (B.O.D.) greater than 300 milligrams per liter (mg/l) or a suspended solids (SS concentration in excess of 350 mg/l).
(b) The surcharge shall be computed in accordance with the following formula:
S=Vw x 8.34 x $0.0946 (BOD-300) + $0.0565 (SS-350)
Where:
S = Surcharge in dollars monthly
Vw = Volume of wastewater in million gallons per month
8.34 = Unit weight of water in pounds per gallon
$0.0946 = Unit charge for B.O.D. in dollars per pound
BOD = five-day biochemical oxygen demand in milligrams per liter
$0.0565 = Unit charge for SS in dollars per pound
SS = Suspended solids concentration in milligrams per liter
300 = Allowable B.O.D. in milligram per liter
350 = Allowance SS in milligrams per liter
(Ord. 801, passed 6-21-1977)