Ordinance 2034-95 - Laserfiche WebLink

R. Discharge Authorization. A waste water discharge permit authorizing users to discharge wastewater to the Everett POTW. These permits would be for users other than Significant Industrial Dischargers, or Categorical industries, but still requiring a control mechanism. S. Domestic Sewage. Domestic sewage means the liquid and water borne wastes derived from ordinary living processes, free from industrial wastes, and of such character to permit satisfactory disposal, without special treatment, into the POTW. T. Domestic User (Residential User). Any person who contributes, causes, or allows the contribution of wastewater into the City POTW that is of a similar volume and/or chemical make-up as that of a residential dwelling unit. Discharges from a residential dwelling unit typically include up to 100 gallons per capita per day at 250 mg/L of BOD and TSS. U. Environmental Protection Agency (EPA). The US Environmental Protection Agency or, where appropriate, the Regional Water Management Division Director, or other duly authorized official of said agency. V. Existing Source. For a categorical industrial user, an "existing source" is any source of discharge, the construction or operation of which commenced prior to the publication by EPA of proposed categorical pretreatment standards, which will be applicable to such source if the standard is thereafter promulgated in accordance with Section 307 of the Act. W. Existing User. For non-categorical users an "existing user" is defined as any user which is discharging wastewater prior to the effective date of this ordinance. X. Fats, Oils and Grease (FOG). The term fats, oils, and grease shall mean those components of wastewater amenable to measurement by the methods described in Standard Methods for the examination of Water and Wastewater, 18th edition, 1992. The term Fats, Oils And Grease shall include polar and non polar fats, oils, and grease and other components extracted from wastewater by these methods. Y. Grab Sample. A sample which is taken from a wastestream on a one-time basis without regard to the flow in the wastestream and without consideration of time. Z. Grease Interceptor. An interceptor of at least 750 gallon capacity to serve one or more fixtures and which shall be remotely located. AA. Grease Trap. A device designed to retain grease from one to a maximum of four fixtures. AB. High Strength Waste. Any waters or wastewater having a concentration of BOD or Total Suspended Solids in excess of 250 mg/L, or having a concentration of Fats, Oil and Grease in excess of 50 mg/L. AC. Indirect Discharge or Discharge. The introduction of pollutants into the POTW from any non-domestic source regulated under Section 307(b), (c), or (d) of the Act. The discharge into the POTW is normally by means of pipes, conduits, pumping stations, force mains, constructed drainage ditches, surface water intercepting ditches, and all constructed devices and appliances appurtenant thereto. 4