(A) Imposition of surcharges.
(1) Any users discharging waters or wastes conforming to the limitations of §§ 51.30 through 51.32, and exceeding only the limitations of this section regarding biological oxygen demand (B.O.D.), suspended solids (S.S.), and phosphorous (P), may be allowed, at the discretion of the POTW, to discharge the waste into a sanitary sewer. The users shall be charged for the treatment of extra-strength wastewater according to the following formula: Total Charges = (M1)V+(M2)B.O.D.+(M3)S.S.+(M4)P+Meter Charge
(2) Where:
(a) V = Volume of waste in million gallons;
(b) B.O.D. = Pounds of B.O.D. in excess of the local limit;
(c) S.S. = Pounds of suspended solids in excess of the local limit;
(d) P = Pounds of total phosphorus in excess of the local limit; and
(e) Meter Charge = As provided for in the rate resolution as adopted by the Village Council.
(3) The multiplying constants (M1, M2, M3, M4) shall be calculated annually.
(4) Billings will be rendered on a quarterly basis. The volume will be actual as metered. Loadings of B.O.D., S.S., and P will be actual as calculated from the analysis taken during the preceding month(s).
(B) Monitoring, reporting, and billing. Users shall be required to submit regular reports to the POTW relative to the discharge of their waste. The reports shall contain the information as strength of B.O.D., S.S., P, pH, volume discharged, and other data that might be required by the POTW. This data may be used for the basis for billing under the above formula; however, the POTW at their discretion, may conduct analysis of representative samples taken by the POTW as means of verifying the results as submitted, and the POTW may use their own results of analysis for billing purposes. The type of equipment, methods, and frequency used for metering, sampling, and analysis shall be subject to approval of the POTW.
(C) Pretreatment required. When plant loadings approach the design capacity of the POTW to receive and treat B.O.D., S.S., and P, pretreatment may be required of industrial users unless additional capacity is added to the POTW.
(Prior Code, § 542.12)