(A) Definitions. For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ACT. The Federal Water Pollution Control Act, 33 USC 1251 et seq. (Pub. L. No. 92-500), as amended by the Clean Water Act (Pub. L. No. 95-217) of 1977 and Clean Water Act (Pub. L. No. 97-117) of 1981.
APPLICABLE PRETREATMENT STANDARD. Any pretreatment limit or prohibitive standard (Federal, state and/or local) contained in the subchapter and considered to be the most restrictive with which non-domestic users will be required to comply.
APPROVAL AUTHORITY. The Director in an NPDES state with an approved state pretreatment program or the administrator of the EPA in a non-NPDES state or an NPDES state without an approved state pretreatment program.
AUTHORITY. The City of Shelbyville, Indiana, provided, wherever applicable, the Board of Works and Safety shall be the administrator of this subchapter.
AUTHORIZED OR DULY AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER. An authorized representative of an industrial user may be:
(a) A principal executive officer of at least the level of vice-president, if the industrial user is a corporation;
(b) A general partner or proprietor, if the industrial user is a partnership or proprietorship, respectively;
(c) A director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility, or their designee, if the industrial user is a Federal, state, or local governmental facility.
(d) The individuals described in divisions (a) through (c) above, may designate a duly authorized representative if the authorization is in writing, the authorization specifies the individual or position is responsible for the overall operation of the facilities from which the indirect discharge originates or having overall responsibility for environmental matters for the company, and the written authorization is submitted to the city.
AVERAGE MONTHLY DISCHARGE LIMITATION. The highest allowable average of daily discharges over a calendar month, calculated as the sum of all daily discharges measured during a calendar week divided by the number of daily discharges measured during that week.
AVERAGE WEEKLY DISCHARGE LIMITATION. The highest allowable average of daily discharges over a calendar week, calculated as the sum of all daily discharges measured during that week.
BENEFICIAL USES. These uses include, but are not limited to, domestic, municipal, agricultural and industrial use, power generation, recreation, aesthetic enjoyment, navigation, and the preservation and enhancement of fish, wildlife and other aquatic resources or reserves, and other uses, both tangible or intangible, as specified by state or Federal law.
BEST MANAGEMENT PRACTICES (or BMPs). Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in Section 2.1 A and B [40 C.F.R. § 403.5(a)(1) and (b)]. 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 (or BOD). The quantity of dissolved oxygen in milligrams per liter required during stabilization of the decomposable organic matter by aerobic biochemical action under standard laboratory procedures for five days at 20°C. The laboratory determinations shall be made in accordance with procedures set forth in the latest edition of "Standard Methods".
BOARD. The Board of Public Works and Safety of the City of Shelbyville, Indiana, or any duly authorized officials acting in its behalf.
BUILDING (or HOUSE) DRAIN. That part of the lowest horizontal piping of a building drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the buildings and conveys it to a point approximately five feet outside the foundation wall of the building.
BUILDING (or HOUSE) SEWER. The pipe which is connected to the building (or house) drain at a point approximately five feet outside the foundation wall of the building and which conveys the building's discharge from that point to the public sewer or other place of disposal.
CATEGORICAL PRETREATMENT STANDARD OR STANDARD OF CATEGORICAL STANDARD. Any regulation containing pollutant discharge limits promulgated by EPA in accordance with § 307(b) and (c) of the Act (33 USC § 1317) that apply to a specific category of users and that appear in 40 CFR Chapter I, Subchapter N, §§ 405-471.
CATEGORICAL INDUSTRIAL USER. An industrial user subject to a categorical pretreatment standard or categorical standard.
CHEMICAL OXYGEN DEMAND (or COD). This is a measure of the oxygen equivalent of that portion of the organic matter in a sample that is susceptible to oxidation by a strong chemical oxidant. The laboratory determination shall be made in accordance with procedures set forth in the latest edition of "Standard Methods".
CITY. The City of Shelbyville, Indiana, or any duly authorized officials acting in its behalf.
COMBINED SEWER. Sewer intended to receive both wastewater and storm or surface water.
COMPATIBLE POLLUTANT. Any biochemical oxygen demand, suspended solids, pH, and fecal coliform bacteria, plus pollutants identified in the NPDES permit, if the treatment works was designed to treat such pollutants, and in fact does remove such pollutants to a substantial degree. The term substantial degree is not subject to precise definition, but generally contemplates removals in order of 80% or greater. Minor incidental removals in the order of 10% to 30% are not considered substantial. Examples of the additional pollutants which may be considered compatible include:
(a) Chemical oxygen demand;
(b) Total organic carbon;
(c) Phosphorus and phosphorus compounds;
(d) Nitrogen and nitrogen compounds, and
(e) Fats, oils, and greases of animal or vegetable origin (except as prohibited where these materials would interfere with the operation of the treatment works).
COMPOSITE SAMPLE. A composite sample should contain a minimum of eight discrete samples taken at equal time intervals over the compositing period or proportional to the flow rate over the compositing period. More than the minimum number of discrete samples will be required where the wastewater loading in highly variable.
DAILY DISCHARGE. Discharge of a pollutant "measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling."
DAILY MAXIMUM. The arithmetic average of all effluent samples for a pollutant collected during a calendar day.
DAILY MAXIMUM LIMIT. The maximum allowable discharge limit of a pollutant during a calendar day. Where DAILY MAXIMUM LIMITS are expressed in units of mass, the daily discharge is the total mass discharged over the course of the day. Where DAILY MAXIMUM LIMITS are expressed in terms of a concentration, the daily discharge is the arithmetic average measurement of the pollutant concentration derived from all measurements taken that day.
EASEMENT. An acquired legal right for the specific use of land owned by others.
EFFLUENT. Shall mean the water, together with any wastes that may be present, flowing out of a drain, sewer, receptacle or outlet.
EPA. See U.S. ENVIRONMENTAL PROTECTION AGENCY.
EXISTING SOURCE. Any source of discharge that is not a NEW SOURCE.
FECAL COLIFORM. Any of a number of organisms common to the intestinal tract of man and animals, whose presence in sanitary sewage is an indicator of pollution.
FLOATABLE OIL. Any oil, fat, or grease in a physical state, such that will separate by gravity from wastewater by treatment in a pretreatment facility approved by the city.
GARBAGE. Any solid wastes from the preparation, cooking or dispensing of food and from the handling, storage or sale of produce.
GRAB SAMPLE. A sample which is taken from a wastestream on a one-time basis with no regard to the flow in the wastestream and over a period of time not to exceed 15 minutes.
GROUND (SHREDDED) GARBAGE. Garbage that is shredded to such a degree that all particles will be carried freely in suspension under the conditions normally prevailing in the sewerage system, with no particle being greater than 1/2 inch in dimension.
INCOMPATIBLE POLLUTANT. Any pollutant that is not defined as a compatible pollutant, including non-biodegradable dissolved solids.
INDIRECT DISCHARGE OR DISCHARGE. The introduction of pollutants into the POTW from any nondomestic source.
INDUSTRIAL SEWAGE. Any solid, liquid or gaseous substance or form of energy discharged, permitted to flow or escaping from any industrial, manufacturing, commercial or business process or from the development, recovery or processing of any natural resources.
INDUSTRIAL USER. Any industrial establishment that discharges wastewater to a publicly owned treatment works.
INFILTRATION. The water entering a sewer system, including building drains and sewers, from the ground, through such means as, but not limited to, defective pipes, pipe joints, connections, or manhole walls. (Infiltration does not include and is distinguished from inflow.)
INFLOW. The water discharge into a sewer system, including building drains and sewers, from such sources as, but not limited to, roof leaders, cellar, yard and area drains, foundation drains, unpolluted cooling water discharges, drains from springs and swampy areas, manhole covers, cross connections from storm sewers, and combined sewers, catch basins, storm waters, surface run-off, street wash waters or drainage. (Inflow does not include, and is distinguished from infiltration.)
INFILTRATION/INFLOW. The total quantity of water from both infiltration and inflow without distinguishing the source.
INFLUENT. The water, together with any wastes that may be present flowing into a drain, sewer, receptacle, or outlet.
INSPECTOR. The person(s) duly authorized by the city, through the Board of Public Works and Safety, to inspect and approve the installation of building sewers and their connection to the public sewer system.
INSTANTANEOUS LIMIT. The maximum concentration of a pollutant allowed to be discharged at any time, determined from the analysis of any discrete or composited sample collected, independent of the industrial flow rate and the duration of the sampling event.
INTERFERENCE. The inhibition or disruption of the POTW treatment processes or operations. The term also includes a discharge that causes a violation of any requirement of the city's NPDES permit, including an increase in the magnitude or duration of a violation. The term includes prevention of sewage sludge use or disposal by the POTW in accordance with Section 405 of the Clean Water Act, (33 USC 1345) or any criteria, guidelines, or regulations developed pursuant to the Solid Waste Disposal Act (SWDA) (42 USC 6901), the Clean Air Act (42 USC 7401), the Toxic Substances Control Act (15 USC 2601), or more stringent state criteria (including those contained in any state sludge management plan prepared pursuant to Subtitle D of the SWDA (42 USC 6941) applicable to the method of disposal or use employed by the POTW).
LOCAL LIMIT. Specific discharge limits developed and enforced by the city upon industrial or commercial facilities to implement the general and specific discharge prohibitions listed in 40 CFR § 403.5(a)(1) and (b).
MAXIMUM DAILY DISCHARGE LIMITATIONS. Highest allowable "daily discharge".
MAY. Indicates a discretionary condition.
MEDICAL WASTE. Isolation wastes, infectious agents, human blood and blood products, pathological wastes, sharps, body parts, contaminated bedding, surgical wastes, potentially contaminated laboratory wastes, and dialysis wastes.
MONTHLY AVERAGE. The sum of all daily discharges measured during a calendar month divided by the number of daily discharges measured during that month.
MONTHLY AVERAGE LIMIT. 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.
NATIONAL CATEGORICAL PRETREATMENT STANDARD (or PRETREATMENT STANDARD). Any regulation containing pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act which applies to a specific category of industrial users. Pretreatment standards shall mean prohibited discharge standards, categorical pretreatment standards, and local limits.
NEW SOURCE. Any source, the construction of which is started after the publication of proposed regulations stating a categorical pretreatment standard will be applicable to such source, provided the standard is promulgated within 120 days of its proposal in the Federal register. Where the standard is promulgated later than 120 days after its proposal, a new source means any source in which construction is started after the date of promulgation of the standard.
(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 Act that will be applicable to such source if such standards are thereafter promulgated in accordance with that section, provided that:
1. The building, structure, facility, or installation is constructed at a site at which no other source is located; or
2. The building, structure, facility, or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or
3. 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 division (a)2. or 3. above but otherwise alters, replaces, or adds to existing process or production equipment.
(c) Construction of a NEW SOURCE as defined under this definition has commenced if the owner or operator has:
1. 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
2. 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, 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 definition.
NONCONTACT COOLING WATER. Water used for cooling that does not come into direct contact with any raw material, intermediate product, waste product, or finished product.
NORMAL DOMESTIC SEWAGE. The same meaning as for sanitary sewage.
NPDES PERMIT. National pollutant discharge elimination system permit which sets the conditions for the discharge of any pollutant or combination of pollutants to the navigable waters of the United States pursuant to Section 402 of PL 95-217 (33 USC 1342).
OUTLET. Any outlet, natural or constructed, which is the point of final discharge of sewage or of treatment plant effluent into any watercourse, pond, ditch, lake or other body of surface or ground water.
PASS THROUGH. 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 city's NPDES permit, including an increase in the magnitude or duration of a violation.
PERSON. Any and all persons, including any individual, firm company, municipal or private corporation, partnership, co-partnership, joint stock company, trust, estate, association, society, institution, enterprise, governmental agency, the State of Indiana, the United States of America, or other legal entity, or their legal representatives, agents, or assigns. The masculine gender includes the feminine, the singular includes the plural, where indicated by the context.
pH. The logarithm (to the base 10) of the reciprocal of the hydrogen ion concentration of a solution expressed in gramatons per liter of solution. A measure of the acidity or alkalinity of a solution, expressed in standards units.
POLLUTANT. Dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, sewage sludge, munitions, medical wastes, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand cellar dirt, municipal, agricultural and industrial wastes, and certain characteristics of wastewater (e.g. pH, temperature, TSS, turbidity, color, BOD, COD, toxicity, or odor).
POLLUTION. An alteration of the quality of the waters of the state by waste to a degree which unreasonably affects such waters for beneficial uses or facilities which serve such beneficial uses. The man-made or man-induced alteration of the chemical, physical, biological, and radiological integrity of water.
PRETREATMENT. The treatment of industrial sewage from privately-owned industrial sources prior to introduction into a public treatment works. The reduction of the amount of pollutants, the elimination of pollutants, or the alteration of the nature of pollutant properties in wastewater prior to, or in lieu of, introducing such pollutants into the POTW. This reduction or alteration can be obtained by physical, chemical, or biological processes; by process changes; or by other means, except by diluting the concentration of the pollutants unless allowed by an applicable pretreatment standard.
PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment, other than a national pretreatment standard imposed on an industrial user.
PRIMARY SEWER MAIN. The public sewer main which is required to transport sewage from the property line of the nearest prospective customer to the proposed point of connection at the sewage works' existing sewer main.
PROHIBITED DISCHARGE STANDARDS (or PROHIBITED DISCHARGES). Absolute prohibitions against the discharge of certain substances; these prohibitions appear in § 50.047.
PUBLICLY OWNED TREATMENT WORKS (POTW). The Shelbyville sewage treatment and collection facilities. A treatment works, as defined by Section 212 of the Act (33 USC § 1292), which is owned by the City of Shelbyville. This definition includes any devices or systems used in the collection, storage, treatment, recycling, and reclamation of sewage or industrial wastes of a liquid nature and any conveyances, which convey wastewater to a treatment plant.
RECEIVING STREAM. The watercourse, stream, or body of water receiving the waters finally discharged from the wastewater treatment plant.
SANITARY SEWAGE. Sewage discharged from the sanitary conveniences of dwellings (including apartment houses, hotels and motels, office building, factories or institutions) and free from stream water, surface water and industrial wastes.
SECONDARY SEWER MAIN. The public sewer main which is required to provide service from a prospective customer to the primary sewer main.
SEPTIC TANK WASTE. Any sewage from holding tanks such as vessels, chemical toilets, campers, trailers, and septic tanks.
SERVICE CHARGE. The basic charge levied on all users of the public sewerage system for wastes which do not exceed in strength the concentration values above on which a surcharge will be made.
SEWAGE. The water-carried wastes from residences, business buildings, institutions and industrial establishments, singular or in any combination, together with such ground, surface and stream waters as may be present.
SEWAGE TREATMENT PLANT. The arrangement of devices, structures and equipment used for treating and disposing of sewage and sludge.
SEWAGE WORKS. The organization and all facilities for collecting, transporting, pumping, treating and disposing of sewage and sludge, namely the sewerage system and the sewage treatment plant.
SEWER. A pipe or conduit for carrying sewage or other waste liquids.
(a) PRIVATE SEWER. A sewer which is not owned by a public authority.
(b) PUBLIC SEWER. A primary sewer or secondary sewer in which all owners of abutting property have equal rights and which is controlled by the sewage works.
(c) SANITARY SEWER. A sewer which carries sewage and to which storm, surface and ground waters and unpolluted industrial waste waters are not intentionally admitted.
(d) STORM SEWER. A sewer which carries storm and surface water drainage, but excludes sewage.
SEWERAGE SYSTEM (or SEWAGE SYSTEM). The network of sewers and appurtenances used for collecting, transporting and pumping sewage to the sewage treatment plant.
SHALL. Mandatory.
SIGNIFICANT INDUSTRIAL USER (SIU). Except as provided in APPROVAL AUTHORITY AND AUTHORIZED or DULY AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER, a SIGNIFICANT INDUSTRIAL USER is:
(a) An industrial user subject to categorical pretreatment standards; or
(b) An industrial user that:
1. Discharges an average of 25,000 gpd or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewater);
2. Contributes a process wastestream which makes up 5% or more of the average dry weather hydraulic or organic capacity of the POTW treatment plant; or
3. 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.
(c) The City of Shelbyville may determine that an industrial user subject to categorical pretreatment standards is a non-significant categorical industrial user rather than a significant industrial user on a finding that the industrial user never discharges more than 100 gallons per day (gpd) of total categorical wastewater (excluding sanitary, non-contact cooling and boiler blowdown wastewater, unless specifically included in the pretreatment standard) and the following conditions are met:
1. The industrial user, prior to city's finding, has consistently complied with all applicable categorical pretreatment standards and requirements;
2. The industrial user annually submits the certification statement required in Section 5.06.14 B. (See 40 C.F.R. 403.12(q)), together with any additional information necessary to support the certification statement; and
3. The industrial user never discharges any untreated concentrated wastewater.
(d) Upon a finding that a user meeting the criteria in (b) of this definition 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, and in accordance with procedures in 40 CFR 403.8(f)(6), determine that such user should not be considered a SIGNIFICANT INDUSTRIAL USER.
SLUDGE. Any solid, semi-solid or liquid waste generated from a municipal, commercial, or industrial wastewater treatment plant, water supply treatment plant, or air pollution control facility or any other waste having similar characteristics and effects as defined in standards issued under Sections 402 and 405 of the Federal Act (33 USC 1342 and 1345) and in the applicable requirements under Sections 3001, 3004, and 4004 of the Solid Waste Disposal Act, PL 94-580 (42 USC 6921, 6924, and 6944).
SLUG, SLUG LOAD, OR SLUG DISCHARGE. Shall mean any discharge of water, sewage or industrial waste which in concentrations 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 24 hour concentration or flows during normal operation. Any discharge which could cause a violation of the prohibited discharge standards in § 50.047 of this subchapter. 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.
STANDARD INDUSTRIAL CLASSIFICATION (SIC). A classification pursuant to the “Standard Industrial Classification Manual” issued by the Executive Office of the President, Office of Management and Budget, 1972.
STANDARD METHODS. The laboratory procedures set forth in the latest edition, at the time of analysis, of "Standard Methods for the Examination of Water and Wastewater" prepared and published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation.
STORM WATER. Any flow occurring during or following any form of natural precipitation, and resulting from such precipitation, including snowmelt.
SUPERINTENDENT. The person designated by the City of Shelbyville to supervise the operation of the POTW, and who is charged with certain duties and responsibilities by this subchapter. The term also means a duly authorized representative of the authority.
SURCHARGE. The extra charges for sewerage service assessed customers whose sewage is of such a nature that it imposes upon the sewage works a burden greater than that covered by the basic service charge.
SUSPENDED SOLIDS OR TOTAL SUSPENDED SOLIDS. The solids which either float on the surface of, or are in suspension in water, sewage or other liquid, and which are removable by laboratory filtration. Their concentration shall be expressed in milligrams per liter. Quantitative determinations shall be made in accordance with procedures set forth in the latest edition of "Standard Methods."
TOTAL REVENUE. That revenue obtained for monthly minimum billing for the use of and service rendered by the sewage works and does not include front foot assessments, permit or inspection fees or other charges.
TOTAL SOLIDS. The sum of suspended and dissolved solids.
TOXIC AMOUNT. Concentrations of any pollutant or combination of pollutants which upon exposure to any organism will cause adverse effects such as cancer, genetic mutations, and physiological manifestations, as defined in standards issued pursuant to Section 307(a) of PL 95-217 (33 USC 1317(a)).
TOXIC POLLUTANT. Those substances referred to in Section 307(a)(33 USC 1317(a)) of the Act, as well as any other known potential substances capable of producing toxic effects.
UNPOLLUTED WATER. Water of quality equal to or better than the effluent criteria in effect, or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.
UPSET. An exceptional incident in which a discharger unintentionally and temporarily is in a state of non-compliance with the applicable standard due to factors beyond the reasonable control of the discharger, and excluding non-compliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation of the facilities.
U.S. ENVIRONMENTAL PROTECTION AGENCY (OR EPA). The U.S. Environmental Protection Agency, or where appropriate, the Regional Water Management Division Director, the Regional Administrator, or other duly authorized official of said agency.
USER OR INDUSTRIAL USER. Any person that discharges, causes, or permits the discharge of wastewater into the sewerage system.
VOLATILE ORGANIC MATTER. The material in the sewage solids transformed to gases or vapors when heated 550°C for 15 to 20 minutes.
WASTEWATER. Liquid and water-carried industrial wastes and sewage from residential dwellings, commercial buildings, industrial and manufacturing facilities, and institutions, whether treated or untreated, which are contributed to the POTW.
WASTEWATER CONSTITUENTS AND CHARACTERISTICS. The individual chemical, physical, bacteriological, and radiological parameters, including volume, flow rate, and other parameters that serve to define, classify, or measure the contents, quality, quantity, and strength of wastewater.
WASTEWATER TREATMENT PLANT OR TREATMENT PLANT. That portion of the POTW which is designed to provide treatment of municipal sewage and industrial waste.
WATERCOURSE. A channel in which a flow of water occurs either continuously or intermittently.
(B) Abbreviations
BOD. Biochemical oxygen demand.
BMP. Best management practice.
BMR. Baseline monitoring report.
CFR. Code of Federal Regulations.
CIU. Categorical industrial user.
COD. Chemical oxygen demand.
EPA. U.S. Environmental Protection Agency.
gpd. Gallons per day.
IU. Industrial user.
mg. Milligrams.
mg/l. Milligrams per liter.
NPDES. National pollutant discharge elimination system.
NSCIU. Non-significant categorical industrial user.
O & M. Operation and maintenance.
POTW. Publicly owned treatment works.
RCRA. Resource Conservation and Recovery Act.
SIC. Standard industrial classification.
SIU. Significant industrial user.
SNC. Significant noncompliance.
TSS. Total suspended solids.
USC. United States Code.
WWTP. Wastewater treatment plant.
(Ord. 12-2683, passed 8-20-12)