(A) All industrial users of the POTW are subject to industrial waste surcharges on discharges which exceed the following levels:
(1) With the written approval of the Town Manager, waste having the following characteristics may be discharged into the town's sanitary sewer upon payment of an additional charge (surcharge):
(a) Wastes having a BOD of greater than 250 mg/l, but not to exceed 1,500 mg/l.
(b) Wastes containing suspended solids of more than 250 mg/l, but not to exceed 1,000 mg/l.
(c) Waste having COD greater than 500 mg/l, but not to exceed 3,000 mg/l.
(d) Any waste containing constituents in concentrations in excess of the limits set forth in § 52.012, but for which a permit has been issued by the town.
(2) The amount of surcharge will be based upon the mass emission rate (in pounds per day) discharged above the levels listed above. The amount charged per pound of excess will be set forth in the schedule of charges and fees.
(B) The volume of flow used in determining the total discharge of wastewater for payment of user charges and surcharges shall be based on the following:
(1) Metered water consumption as shown in the records of meter readings maintained by the town; or
(2) If required by the town or at the individual discharger's option, other flow monitoring devices which measure the actual volume of waste- water discharged to the sewer. Such devices shall be accessible and safely located, and the measuring system shall be installed in accordance with plans approved by the town. The metering system shall be installed and maintained at the user's expense according to arrangements that may be made with the town.
(3) Where any user procures all or part of his or her water supply from sources other than the town, the user shall install and maintain at his or her own expense a flow measuring device of a type approved by the town.
(C) The character and concentration of the constituents of the wastewater used in determining surcharges shall be determined by samples collected and analyzed by the town and/or constituent concentrations reported by the user. Samples shall be collected in such a manner as to be representative of the actual discharge and shall be analyzed using procedures set forth in 40 CFR 136.
(D) The determination of the character and concentration of the constituents of the wastewater discharge by the Superintendent or Director or his or her duly appointed representatives shall be binding as a basis for charges.
(Ord. passed 11-8-94; Am. Ord. 2018-07-07, passed 7-16-18)