Surcharge rate formula. The person responsible for industrial waste discharge in excessive concentrations of BOD and suspended solids shall pay an industrial surcharge in addition to regular water and wastewater rates, either under Section 49-49 or in accordance with the following cost factors and formula:
(1) The user's cost factors for excessive industrial waste are based on the capital and operating cost of wastewater facilities to provide treatment for the reduction of BOD and suspended solids. The formula is:
(A) Surcharge for excessive concentrations:
Payment rate per 1,000 gallons:
(B) Surcharge for excessive concentrations for wastewater metered separately:
Payment rate per 1,000 gallons:
BOD = Average concentrations of BOD in mg/l, determined from sampling the waste as described in Section 49-52
SS = Average concentrations of suspended solids in mg/l, as determined from sampling the waste as described in Section 49-52
(2) The rate for each user may be calculated once every 12 months. (Ord. Nos. 19201; 19300; 19682; 21061; 21430; 22564; 25755; 26135; 26479; 26961; 27355; 27698; 28795; 29150; 29479; 32003)