All persons discharging sewage or industrial wastes exceeding strengths of normal sewage, but acceptable for discharge into the WEPF, shall be subject to a monthly surcharge determined on the basis of the following parameters:
(a) When the total suspended solids (SS), five-day biochemical oxygen demand (BOD5), five-day carbonaceous biochemical oxygen demand (CBOD5), ammonia (NH3), oil and grease (O&G), or phosphorous, exceeds the values of these constituents for Normal Sewage, the excess concentration(s) shall be subject to a surcharge as follows:
(1) Pounds of excess suspended solids per day x $0.057 per pound = SS surcharge.
(2) Pounds of excess five-day biochemical oxygen demand per day x $0.3862 per pound = BOD5 surcharge.
(3) Pounds of excess five-day carbonaceous biochemical oxygen demand per day x $0.3862 per pound = CBOD5 surcharge.
(4) Pounds of excess ammonia per day x $1.522 per pound = NH3 surcharge.
(5) Pounds of excess oil and grease per day x $0.3862 per pound = O&G surcharge.
(6) Pounds of excess phosphorous per day x $1.522 per pound = P surcharge.
The flow figure used for calculating the pounds of excess pollutant will be either a metered wastewater flow, a metered water usage or an agreed upon alternative flow.
(b) Any surcharge assessed for excess pollutants shall be in addition to normal charges and shall not relieve the industrial user of liability for inhibition, pass through or damage caused by such discharge.
(Ord. 95-20AC. Passed 4-3-95.)