§ 13-701. Definitions.

(1)

Unless the context specifically indicates otherwise, the meanings of the terms used in this chapter shall be as follows:

Abnormal wastes shall mean any waste having a suspended solids, BOD, or EPA Method 1664A n-Hexane extraction materials content or any other parameter in excess of that normally found in municipal sewage and having any wastes containing materials in concentrations that are incompatible with the wastewater system. Any waste that contains more than three hundred twenty-five (325) mg/l of suspended solids or has a BOD in excess of three hundred (300) mg/l or n-Hexane extraction materials content in excess of one hundred (100) mg/l shall be considered an abnormal industrial waste. Further, wastes containing toxic or poisonous substances in concentrations greater than those permitted by EPA rules and regulations shall be considered abnormal industrial wastes.

Act shall mean the Water Pollution Control Act Amendments of 1972 as amended, Public Law 92-500.

Best management practices (BMPs) shall mean schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in section 13-702. BMPs include treatment requirements, operating procedures, and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw materials storage.

Biochemical oxygen demand (BOD) shall mean the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty (20) degrees centigrade expressed in terms of weight and concentration (milligrams per liter, or mg/l).

Building drain shall mean 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 (5) feet (1.5 meters) outside the inner face of the building wall.

Building sewer shall mean the extension of the building drain to the public sewer or other place of disposal.

Categorical standards shall mean national pretreatment standards.

Combined sewer shall mean a sewer receiving both surface runoff and sewage.

Compatible pollutant shall mean BOD, suspended solids, pH, fecal coliform bacteria, and such additional pollutants as are now or may in the future be specified and controlled in the city's NPDES permits for its wastewater treatment plants where the plants have been designed and used to reduce or remove such pollutants.

Cooling water shall mean the water discharged from any use such as air conditioning, cooling, or refrigeration, during which the only pollutant added to the water is heat.

City shall mean the City of Clarksville, Tennessee, the mayor, the city engineer, the general manager, the wastewater division manager, the pretreatment coordinator, the wastewater treatment plant superintendent, the wastewater collection system supervisor, the sewer lift station supervisor or their duly authorized representatives.

Wastewater division manger shall mean the manager of the sewage works of the city, or his authorized deputy, agent, or representative.

Domestic wastes shall mean liquid wastes:

a.

From the noncommercial preparation, cooking, and handling of food; or

b.

Containing human excrement and similar matter from the sanitary conveniences of dwellings, commercial buildings, industrial facilities, and institutions.

EPA shall mean the Environmental Protection Agency, an agency of the federal government, or its successor agency or body.

Equivalent flow shall mean the hydraulic flow adjusted to reflect the excessive waste loading of an industrial discharge; the highest concentration of any one (1) waste parameter shall determine the equivalent flow.

Extraneous flow shall mean any stormwater, water runoff resulting from natural precipitation, drainage, or any other water the wastewater system is not designed to handle or accept.

Garbage shall mean solid wastes form the domestic and commercial preparation, cooking, and dispensing of food, and from the handling, storage, and sale of produce.

Grab sample shall mean a sample which is taken from the waste stream on a one-time basis with no regard to the flow in the waste stream and not to exceed fifteen (15) minutes.

Hearing authority shall mean the quasijudicial body that has the authority to adjudicate this chapter.

Incompatible pollutant shall mean any pollutant that is not a compatible pollutant as defined in this section.

Indirect discharge shall mean the introduction of pollutants into a POTW from any non-domestic source.

Industrial user shall mean a source of indirect discharge which does not constitute a "discharge of pollutants" under regulation issued pursuant to section 402 of the Act.

Industrial wastes shall mean the liquid wastes from industrial manufacturing processes, trade, or business as distinct from sanitary sewage.

Interference shall mean a discharge that, alone or in conjunction with a discharge or discharges from other sources, inhibits or disrupts the POTW, its treatment processes or operations or its sludge use or disposal; or exceeds the design capacity of the treatment works or the collection system.

Major user shall mean any industrial user of the city's wastewater system whose nondomestic flow or loading is greater than an equivalent flow of twenty-five thousand (25,000) gallons per day (gpd) but less than ten (10) percent of the average daily flow for which the system was designed.

Minor user shall mean any user whose flow or loading is equivalent to twenty-five thousand (25,000) gpd or less.

National pollutant discharge elimination system (NPDES) shall mean the program for issuing, conditioning, and denying permits for the discharge of pollutants from point sources into navigable waters, the contiguous zone and the oceans pursuant to section 402 of the Act.

National pollution discharge elimination system permit or NPDES permit shall mean a permit issued pursuant to section 402 of the Act (33 U.S.C. 1342).

Natural outlet shall mean any outlet into a watercourse, pond, ditch, lake, or other body of surface water or groundwater.

New source shall mean

(a)

Any building, structure, facility or installation from which there is or may be a discharge of pollutants, the construction of which commenced after the publication of proposed Pretreatment Standards under section 307(c) of the Federal Clean Water Act which will be applicable to such source if such standards are thereafter promulgated in accordance with that section, provided that:

(i)

The building, structure, facility or installation is constructed at a site at which no other source is located; or

(ii)

The building, structure, facility or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or

(iii)

The production or wastewater generating processes of the building, structure, facility or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source should be considered.

(b)

Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility or installation meeting the criteria of paragraph 13-701(1) of this section, but otherwise alters, replaces, or adds to existing process or production equipment.

(c)

Construction of a new source as defined under this paragraph has commenced if the owner or operator has:

(i)

Begun, or caused to begin as part of a continuous onsite construction program:

(A)

Any placement, assembly, or installation of facilities or equipment; or

(B)

Significant site preparation work including clearing, excavation, or removal of existing buildings, structures, or facilities which is necessary for the placement, assembly, or installation of new source facilities or equipment; or

(ii)

Entered into a binding contractual obligation for the purchase of facilities or equipment which are intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss, and contracts for feasibility, engineering, and design studies do not constitute a contractual obligation under this paragraph.

Parameter shall mean a specified characteristic of the wastewater relevant to its treatability (BOD, suspended solids, grease, etc.).

Pass through means 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, is a cause of a violation of any requirement of the POTW's NPDES permit (including an increase in the magnitude or duration of a violation).

Person shall mean any individual, firm, company, partnership, corporation, association, group, or society and includes the state and agencies, districts, commissions and political subdivisions created by or pursuant to state law.

pH shall mean the logarithm of the reciprocal of the mass of hydrogen ions in moles per liter of solution.

Pretreatment shall mean the application of physical, chemical, and/or biological processes to reduce the amount of pollutant properties in a wastewater prior to discharging such wastewater into the publicly owned wastewater treatment system.

Pretreatment requirement shall mean any substantive or procedural requirement related to pretreatment, other than a National Pretreatment Standard, imposed on an industrial user.

Pretreatment standards shall mean all applicable federal rules and regulations implementing section 307 of the Act, including all local pollutant discharge limits, as well as any nonconflicting state or local standards. In cases of conflicting standards or regulations, the more stringent thereof shall be applied.

Properly shredded garbage shall mean the wastes from the preparation, cooking, and dispensing of food that has been shredded to such a degree that all particles shall be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half (½) inch (1.27 centimeters) in any dimension.

Public sewer shall mean a sewer in which all owners of abutting properties have equal rights and which is controlled by public authority.

Publicly owned treatment works (POTW) shall mean the wastewater treatment facility owned and operated by the city.

Sanitary sewer shall mean a sewer which carries wastewater and to which storm, surface, and ground waters are not intentionally admitted.

Sewer shall mean a pipe or conduit for carrying wastewater.

Shall is mandatory; may is permissive.

SIC shall designate standard industrial classification, a system developed by the office of management and budget, executive branch, U.S. Government, to promote the comparability of statistics describing industrial users. The SIC defines establishments in accordance with the type of activity in which they are engaged.

Significant user shall mean all industrial users subject to categorical pretreatment standards, and any other industrial user that: Discharges an average of twenty-five thousand (25,000) gallons per day or more of process wastewater to the publicly owned treatment works (POTW) (excluding sanitary, noncontact cooling and boiler blow-down wastewater); contributes a process waste stream which makes up five (5) percent or more of the average dry weather hydraulic or organic capacity of the treatment plant; or is designated as such by the city on the basis that it has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement. Upon finding that an industrial user meeting these criteria has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, the city may at any time, on its own initiative or in response to a petition received from an industrial user, determine that such industrial user is not a significant industrial user.

Slug load or slug discharge shall mean any discharge at a flow rate or concentration, which could cause a violation of the prohibited discharge standards in section 13-702. A slug discharge is any discharge of a non-routine, episodic nature, including but not limited to an accidental spill or a non-customary batch discharge, which has a reasonable potential to cause interference or pass-through, or in any other way violate the POTW's regulations, local limits, or permit conditions. Significant industrial users are required to notify the POTW immediately of any changes at its facility affecting potential for a slug discharge.

Standard methods shall mean "Standard Methods for the Examination of Water and Wastewater" published jointly by the Water Pollution Control Federation, the American Water Works Association, and the American Public Health Association.

Storm drain (sometimes termed storm sewer) shall mean a sewer which carries storm and surface waters and drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.

Stormwater shall mean any extraneous flow resulting from natural precipitation.

Suspended solids shall mean solids that are in suspension in water, sewage, or other liquids, and which are removable by laboratory filtering.

Toxic pollutant shall mean any pollutant or combination of pollutants listed as toxic in regulations promulgated by the administrator of the Environmental Protection Agency under the provisions of 33 U.S.C. 1317.

Twenty-four-hour flow proportional composite sample shall mean a sample consisting of several effluent portions collected during a twenty-four-hour period in which the portions of sample are proportioned to the flow and combined to form a representative sample.

Unpolluted water shall mean water not containing any pollutants limited or prohibited by the effluent standards in effect, or water whose discharge will not cause any violation of known receiving water quality standards.

User shall mean any person who discharges wastewater into the city's wastewater system or who causes or permits wastewater to be discharged.

Wastewater or sewage shall mean a combination of water-carried wastes from residences, business buildings, institutions, and industrial establishments.

Wastewater system shall mean all separate sanitary sewers, all combined sewers, all wastewater pumping stations, all wastewater treatment plants, and all other facilities provided and owned by the city for the collection and treatment of sanitary sewage and industrial waste, together with their appurtenances and any additions, expansions, or improvements that hereafter may be made thereto by the city. It shall also include all sewers that discharge into the public sanitary sewerage system, even though those sewers may not have been constructed with funds of the city. It does not include separate storm sewers, culverts, or other drains that have been constructed for the sole purpose of carrying storm and surface runoff, the discharge from which is not and does not become tributary to the wastewater treatment facilities.

Wastewater treatment plant shall mean any arrangement of devices and structures used for treating wastewater.

Wastewater works shall mean all facilities for collecting, pumping, treating, and disposing of sewage.

Watercourse shall mean a channel in which a flow of water occurs, either continuously or intermittently.

Terms not otherwise defined herein, if questioned shall be as adopted in the latest edition of Standard Methods for the Examination of Water and Wastewater.

( Ord. No. 41-2016-17 , § 1, 1-5-17)