Unless the context specifically indicates otherwise, the meaning of terms used in this article shall be as follows:
The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 U.S.C. § 1251 et seq.
[Added 11-10-2020]
Schedule of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed under § 200-3A and § 200-16C(1) and (3) [40 CFR 403.5(a)(1) and (b)]. BMPs include treatment requirements, operating procedures to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw materials storage.
[Added 11-10-2020]
The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures in five days at 20° C., expressed in milligrams per liter.
That part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning five feet (1.5 meters) outside the inner face of the building wall.
The intentional diversion of waste streams from any portion of an industrial User's pretreatment facility.
Any regulation containing pollutant discharge limits promulgated by EPA in accordance with Section 307(b) and (c) of the Act (33 U.S.C. § 1317) that apply to a specific category of the Users and that appear in 40 CFR Chapter I, Subchapter N, Parts 405 through 471.
[Added 11-10-2020]
An industrial User subject to a Categorical Pretreatment Standard or Categorical Standard.
[Added 11-10-2020]
A sewer intended to receive both wastewater and stormwater or surface water.
The Commissioner of Public Works or his/her designee. See § 7-18A of the City Code.
[Amended 3-5-2019]
Normal water-carried household and toilet waste or waste from sanitary conveniences, excluding groundwater, surface water, or stormwater.
An acquired legal right for specific use of land owned by others.
Oil, fat, or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater shall be considered free of floatable oil if it is properly pretreated and the wastewater does not interfere with the collection system.
[Amended 3-5-2019]
The animal and vegetable waste resulting from the handling, preparation, cooking, and serving of foods.
Includes the fats, oils, waxes and other related constituents found in wastewater.
Sand, gravel, cinders, or other heavy solid materials that have subsiding velocities or specific gravities substantially greater than those of the organic putrescible solids in wastewater. Grit also includes eggshells, bone chips, seeds, coffee grounds, and large organic particles, such as food or wastes.
A source of the introduction of pollutants into the POTW from any non-domestic source regulated under Section 307(b), (c) or (d) of the Federal Clean Water Act, 33 U.S.C. § 1251 et seq.
The wastewater from industrial processes, trade, or business as distinct from domestic or sanitary wastes.
A discharge which, alone or in conjunction with a discharge or discharges by other sources, inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use or disposal and therefore causes a violation of the City's National Pollutant Discharge Elimination System (NPDES) permit or prevents sewage sludge use or disposal in compliance with applicable federal, state or local statutes, or with regulations or permits issued thereunder.
The highest allowable discharge of a pollutant measured during a calendar day or any twenty-four-hour period that reasonably represents a calendar day.
Is permissive (see "shall").
The highest allowable average of daily discharges over a calendar month, calculated as the sum of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month.
Any regulation effective as of the date of discharge containing pollutant discharge limits promulgated by the Environmental Protection Agency (EPA) in accordance with Section 307(b) and (c) of the Federal Clean Water Act, 33 U.S.C. § 1251 et seq., which apply to a specific category of industrial Users and which appear in 40 CFR, Chapter 1, Subchapter N, Parts 405 through 471.
Any regulation effective as of the date of discharge containing pollutant discharge limits promulgated by the EPA under Section 307(b) and (c) of the Federal Clean Water Act, 33 U.S.C. § 1317, applicable to industrial Users.
Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake, or other body of surface water or groundwater.
Any facility from which there is or may be a discharge of pollutants, construction of which began after the publication of proposed pretreatment standards under Section 307(c) of the Federal Clean Water Act, 33 U.S.C. § 1251 et seq., which will apply to such source if such standards are thereafter promulgated, provided that:
The facility is constructed at a site at which no other source is located;
The facility totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or
The production or wastewater generating processes of the facility are substantially independent of an existing source at the same site.
A discharge which exits the POTW into waters of the United States in quantities or concentrations which, alone or in conjunction with a discharge or discharges from other sources, cause a violation of the City's NPDES permit.
Any individual, firm, company, association, society, corporation, or group, including all federal, state, and/or local government entities and any other legal entity.
The logarithm of the reciprocal of the hydrogen-ion concentration. The concentration is the weight of hydrogen-ions, in grams, per liter of solution. Neutral water, for example, has a pH value of 7 and a hydrogen-ion concentration of 10-7.
A wastewater treatment works which is owned by a state or municipality. This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial waste of a liquid nature. It also includes sewers, pipes and other conveyances only if they convey wastewater to a POTW wastewater treatment works. The term also means the municipality which has jurisdiction over discharges to and the discharges from such a treatment works.
Any substantive or procedural requirement related to pretreatment, other than a National Pretreatment Standard, imposed on an industrial User.
That portion of the sewer defined as the "building drain."
Wastewater that excludes sanitary, non-contact cooling and boiler blowdown wastewaters.
The wastes from the preparation, cooking, and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than 1/2 inch (1.27 centimeters) in any dimension.
A common sewer controlled by a governmental agency or public utility.
A sewer that carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions together with minor quantities of groundwater, stormwater, and surface water that are not admitted intentionally.
That concentration of a pollutant which under baseline conditions would cause a threat to personnel exposed to the pollutant or would cause a threat to structures of wastewater facilities. To be administered as limits applicable to a particular discharge, the screening levels must be adjusted to account for conditions at the point of discharge which differ from baseline conditions.
The spent water of a community. The preferred term is "wastewater."
A pipe or conduit that carries wastewater or drainage water.
The extension from the building drain to the public sewer; also called "house connection," "building sewer," or "sewer lateral."
Is mandatory (see "may").
Any industrial User subject to a National Categorical Pretreatment Standard and any other industrial User that discharges 25,000 gallons per day or more of process wastewater to the POTW, contributes a process waste stream which makes up 5% or more of the average dry weather hydraulic or organic capacity of the POTW, or is designated by the Environmental Protection Agency, the State of New Hampshire or the City on the basis that the industrial User has a reasonable potential to adversely affect the POTW's operation or to violate a pretreatment standard or requirement.
Any industrial User who violates one or more of the criteria outlined at 40 CFR 403.8(f)(2)(viii)(A) to (H).
Any discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than 15 minutes more than five times the average twenty-four-hour concentration or flows during normal operation and shall adversely affect the collection system and/or performance of the wastewater treatment works.
A drain or sewer for conveying water, groundwater, subsurface water, or unpolluted water from any source.
Total suspended matter that either floats on the surface of or is in suspension in water, wastewater, or other liquids and that is removable by laboratory filtering as prescribed in Standard Methods for the Examination of Water and Wastewater and referred to as "nonfilterable residue."
Water of quality equal to or better than the effluent criteria in effect or water that would not cause a violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.
The spent water of a community. From the standpoint of source, it may be a combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions, together with any groundwater, surface water, and stormwater that may be present.
The structures, equipment, and processes required to collect, carry away, and treat domestic and industrial wastes and dispose of the effluent.
A separate listing of all deposits, water rates, charges, and fees and can be obtained from the Department of Public Works or the Business Office.
An arrangement of devices and structures for treating wastewater, industrial wastes, and sludge. Sometimes used as synonymous with "waste treatment plant" or "wastewater treatment plant" or "water pollution control plant."
A natural or artificial channel for the passage of water either continuously or intermittently.