In order to comply with federal regulations, in the case of federal grant assistance for the construction of waste treatment works, where it has been determined that “industrial users” as defined in § 51.100 above, or as amended by appropriate federal regulations, are required to reimburse a portion of the federal grant amount allocable to the capital cost of construction facilities for the treatment of industrial wastes, rates and charges shall be collected from each industrial user connected to the municipal sewage works or who otherwise discharges sewage, water or liquids, either directly or indirectly, into the municipal waste treatment system, which charges shall be payable as hereinafter provided and shall be in an amount determinable as follows:
(A) (1) The industrial cost recovery charges for the treatment of industrial wastes shall be based upon the volume of sewage flow billed to industrial users, as determined in accordance with appropriate provisions for determining billed flow included in the rate ordinance and the total strength and character of industrial wastes which is introduced into the waste treatment system.
(2) The strength and character of industrial wastes shall be measured at the industrial user's expense as provided for in the rate ordinance and furnished to the city.
(3) The owner or industrial user shall furnish a central sampling point available to the city at all times. In the event that measurement of the strength and character of industrial wastes are not provided to the city on a timely basis, the measurements of the strength and character of industrial wastes shall be determined by the city on the basis of a sample, authorized hereunder, to be taken by the city for the purpose of appropriate billing.
(4) The industrial cost recovery rates for the treatment of wastes shall be as follows:
(a) Monthly volume flow, which includes normal domestic wastes (BOD 200 mg/l, suspended solids 210 mg/l and phosphorus 10 mg/l, per 100 cubic feet, $0.165.
(b) Monthly pounds of BOD in excess of 200 mg/l, per pound, $0.024.
(c) Monthly pounds of suspended solids in excess of 210 mg/l, per pound, $0.042.
(d) Monthly pounds of phosphorus in excess of 10 mg/l, per pound, $0.085.
(B) The rates stated in division (A)(4) above, would result in total recovery of the federal grant amount if all users were subject to the industrial cost recovery requirement, and provided that the treatment plant was operated at capacity during the cost recovery period. Therefore, these rates will ensure that each industrial user will pay only that portion of the federal grant amount applicable to the costs of the treatment facilities actually utilized to treat industrial wastes, as determined by each industrial user's flow and pollutant loadings.
(C) In the event an industrial user can and does show to the satisfaction of the city that a portion of the total monthly billed sewage flow is from sanitary conveniences, then the flow and pollutant loadings to which the industrial cost recovery charge is applied shall be determined on the basis of net flow and pollutant loadings excluding sanitary conveniences.
(D) The industrial cost recovery charges for treatment services on or after the effective date as stated in § 51.106 shall be prepared and billed quarterly.
('77 Code, § 20-74) (Ord. 375, passed 4-3-78; Am. Ord. 412, passed 7-16-79)