For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ACT. The Federal Clean Water Act (33 U.S.C. §§ 1251 et seq., as amended).
INDIRECT DISCHARGE. The introductions of pollutants into a POTW from any non-domestic source.
INDUSTRIAL USER or USER. A source of indirect discharge.
INFLOW. Water other than wastewater that enters a sewer system (including sewer service connections) from sources such as, but not limited to roof leaders, cellar drains, yard drains, area drains, drains from springs and swampy areas, manhole covers, cross-connections between storm sewers, catch basins, cooling towers, storm waters, surface runoff, street wash waters, or drainage.
INTERFERENCE. An inhibition or disruption of the POTW, its treatment processes or operations, or its sludge processes, use or disposal which is a cause of or significantly contributes to either a violation of any requirement of the POTW’s NPDES permit (including an increase in the magnitude or duration of a violation) or to the prevention of sewage sludge use or disposal by the POTW in accordance with the following statutory provisions and regulations for permits issued thereunder (or more stringent state or local regulations): § 405 of the Clean Water Act, the Solid Waste Disposal Act (SWDA), including Title II, more commonly referred to as the Resource Conservation and Recovery Act (RCRA), and including state regulations contained in any state sludge management plan prepared pursuant to Subtitle D of the SWDA, the Clean Air Act, and the Toxic Substances Control Act. An industrial user significantly contributes to such a permit violation or prevention of sludge use or disposal in accordance with the above-cited authorities whenever such user:
(1) Discharges a daily pollutant loading in excess of that allowed by contract with POTW or by federal, state, or local law;
(2) Discharges wastewater which substantially differs in nature or constituents from the user’s average discharge; or
(3) Knows or has reason to know that its discharge, alone or in conjunction with discharges from other sources, would result in a POTW permit violation or prevent sewage sludge use or disposal in accordance with the above-cited authorities as they apply to the POTW’s selected method of sludge management.
PASS THROUGH. The discharge of pollutants through the POTW into navigable waters in quantities or concentrations which are a cause of or significantly contributes to a violation of any requirement of the POTW’s duration of a violation. An industrial user significantly contributes to such a permit violation where it:
(1) Discharges a daily pollutant loading in excess of that allowed by contract with POTW or by federal, state, or local law;
(2) Discharges wastewater which substantially differs in nature or constituents from the user’s average discharge;
(3) Knows or has reason to know that its discharge, alone or in conjunction with discharges from other sources, would result in a permit violation; and
(4) Knows or has reason to know that the POTW is, for any reason, violating its final effluent limitations in its permit and that such industrial user’s discharge, either alone or in conjunction with discharges from other sources, increases the magnitude or duration of the POTW’s violations.
PUBLICLY OWNED TREATMENT WORKS or POTW. A treatment works as defined by § 2121 of the Act, which is owned by a state or municipality, as defined in § 502(4) of the Act. The definition includes any devices and systems used in the storage, treatment recycling, and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes sewers, pipes, and other conveyances only if they convey wastewater to POTW Treatment Plant. The term also means the municipality as defined in § 502(4) of the Act, which has jurisdiction over the indirect discharges from such treatment works.
(Prior Code, § 17-302)