AG 1995 04 17 - Laserfiche WebLink

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Charges for flow to the POTW not directly attributable to the users shall be distributed among all users of POTW based upon the volume of flow of the users. Section 10-3.3 Surcharges. Ail industrial users of the POTW are subject to industrial waste surcharges on discharges which exceed the following levels: BOD - 300 MG/L COD - 675 MG/L TSS - 175 MG/L NH) - 15 MG/L Oil/Grease - 100 MG/L Aluminum - 1.80 MG/L Arsenic - 0.003 MG/L Cadmium - 0.003 MG/L Copper - 0.090 MG/L Chromium - 0.020 MG/L Cyanide - 0.041 MG/L Lead - 0.049 MG/L Mercury - 0.0003 MG/L Nickel - 0.021 MG/L Silver - 0.005 MG/L Zinc - 0.176 MG/L The amount of surcharge will be based upon the mass emission rate (in pounds) discharged in excess of the levels listed above. An industrial user shall never increase the amount of water to dilute pollutant concentrations to avoid or reduce surcharges. The amount charged per pound of excess will be set forth in the Surcharge Rate Schedule. ao 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: Metered water consumption as shown in the records of meter readings maintained by the Authority. If a person discharging wastewater into the public sewers produces evidence to the Executive Director that a significant percent of the total annual volume of water used for all purposes does not reach the public sewers, then an estimated percentage of total water consumption to be used in determining nondomestic wastewater discharge may be agreed upon between the Executive Director and the person discharging such nondomestic wastewater into the public sewer. The Executive Director shall ascertain whether substantial evidence has been provided to prove a significant percent of water does not reach the public sewers; or If required by the Authority or at the individual discharger's option, other flow monitoring devices which measure the actual volume of wastewater discharges 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 Authority. The metering system shall be installed and maintained at the users expense according to arrangements that may be made with the Authority. Where any user procures all or part of his water supply from sources other than the County, the user shall install and maintain at his own expense water meters of a type approved by the Administrator for the purposes of determining the proper volume of wastewater discharged to such sewers. The character and concentration of wastewater used in determining surcharges shall be determined by samples collected and analyzed by the Authority. Samples shall be collected in such manner as to be representative of the actual discharge and shall be analyzed using procedures set forth in 40 CFR Part 136.