(A)   This chapter is gender neutral and the masculine gender shall include the feminine and vice-versa.  Shall is mandatory; may is permissive or discretionary. The use of the singular shall be construed to include the plural and the plural shall include the singular as indicated by the context of its use. Unless the context specifically indicates otherwise, the following terms and phrases, as used in this chapter, shall have the meanings hereinafter designated.
      ACT or “THE ACT.” The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC §1251, et. seq.
      APPROVAL AUTHORITY.  The Director of the Division Of Water Quality of the North Carolina Department of Environment and Natural Resources or his designee.
         (a)   If the industrial user is a corporation, authorized representative shall mean:
            1.   The president, secretary, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation, or
            2.   The manager of one or more manufacturing, production, or operation facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing comprehensive measures to assure long-term environmental compliance with environmental laws and regulations; can ensure that the necessary systems are established or actions taken to gather complete and accurate information for control mechanism requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.
         (b)   If the industrial user is a partnership, or sole proprietorship, an authorized representative shall mean a general partner or the proprietor respectively.
         (c)   If the industrial user is a Federal, State or local government facility, an authorized representative shall mean a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility, or their designee.
         (d)   The individuals described in divisions (a) through (c) above may designate another authorized representative if the authorization is in writing, the authorization specifies the individual or position responsible for the overall operation of the facility from which the discharge originates or having overall responsibility for environmental matters for the company, and the written authorization is submitted to the city.
         (e)   If the designation of an authorized representative is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, or overall responsibility for environmental matters for the company, a new authorization satisfying the requirements of this section must be submitted to the POTW Director prior to or together with any reports to be signed by an authorized representative.
      BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures, for five days at 20° Centigrade usually expressed as a concentration (e.g. mg/l).
      BUILDING SEWER. A sewer conveying wastewater from the building of a user to the POTW sewer connection or a private sewer main. A building sewer is owned, operated, and maintained by the building owner continuously on property to which such owner has ownership or permanent legal right of access for operation and maintenance.
      BYPASS.  The intentional diversion of waste streams from any portion of a user's treatment facility.
      CATEGORICAL STANDARDS. National Categorical Pretreatment Standards or Pretreatment Standard.
      CONTROL AUTHORITY. Refers to the POTW organization if the POTW organization's Pretreatment Program approval has not been withdrawn.
      ENVIRONMENTAL PROTECTION AGENCY or EPA. The U.S. Environmental Protection Agency, or where appropriate the term may also be used as a designation for the Administrator or other duly authorized official of said agency.
      GRAB SAMPLE. A sample which is taken from a waste stream on a one-time basis without regard to the flow in the waste stream and over a period of time not to exceed 15 minutes.
      GRIT. Settleable solids which are predominantly inorganic and inert and will settle quickly in water flowing at a rate of two feet per second or less.
      HOLDING TANK WASTE. Any waste from holding tanks, including but not limited to such holding tanks as vessels, chemical toilets, campers, trailers, septic tanks, and vacuum-pump tank trucks.
      INDIRECT DISCHARGE or DISCHARGE.  The discharge or the introduction from any nondomestic source regulated under section 307(b), (c), or (d) of the Act, (33 USC 1317), into the POTW (including holding tank waste discharged into the system).
      INDUSTRIAL USER or USER. Any person which is a source of indirect discharge.
      INTERFERENCE. The inhibition, or disruption of the POTW collection system, treatment processes, operations, or its sludge process, use, or disposal, which causes or contributes to a violation of any requirement of the Control Authority's (and/or POTW's if different from the Control Authority) NPDES, collection system, or Non-discharge Permit or prevents sewage sludge use or disposal in compliance with specified applicable State and Federal statutes, regulations, or permits. The term includes prevention of sewage sludge use or disposal by the POTW in accordance with section 405 of the Act, (33 USC 1345) or any criteria, guidelines, or regulations developed pursuant to the Solid Waste Disposal Act (SWDA) (42 USC § 6901, et  seq.), the Clean Air Act, the Toxic Substances Control Act, the Marine Protection Research and Sanctuary Act (MPRSA) or more stringent state criteria (including those contained in any State sludge management plan prepared pursuant to Title IV of SWDA) applicable to the method of disposal or use employed by the POTW.
      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.
      NATIONAL CATEGORICAL PRETREATMENT STANDARD or CATEGORICAL STANDARD. Any regulation containing pollutant discharge limits promulgated by EPA in accordance with sections 307(b) and (c) of the Act (33 USC § 1317) which applies to a specific category of industrial users, and which appears in 40 CFR Chapter 1, Subchapter N, Parts 405-471.
      NATIONAL PROHIBITIVE DISCHARGE STANDARD or PROHIBITIVE DISCHARGE STANDARD. Absolute prohibitions against the discharge of certain substances; these prohibitions appear in § 52.020 of this chapter and are developed under the authority of 307(b) of the Act and 40 CFR, section 403.5.
      NEW SOURCE.  As defined in 40 CFR 403.3(m), including any subsequent amendments and additions.
      NONCONTACT COOLING WATER. Water used for cooling which does not come into direct contact with any raw material, intermediate product, waste product, or finished product.
      NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM or NPDES PERMIT. A permit issued pursuant to section 402 of the Act (33 USC § 1342), or pursuant to G.S. § 143-215.1 by the state under delegation from EPA.
      NON-DISCHARGE PERMIT. A disposal system permit issued by the State pursuant to G.S. § 143-215.1(d) for a waste which is not discharged directly to surface waters of the State or for a wastewater treatment works which does not discharge directly to surface waters of the State.
      PASS THROUGH.  A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of the Control Authority's (and/or POTW's if different from the Control Authority) NPDES, collection system, or Non-discharge Permit.
      PERSON. Any individual, partnership, co-partnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity or any other legal entity, or their legal representatives, agents or assigns. This definition includes all Federal, State, and local government entities.
      pH.  A measure of the acidity or alkalinity of a substance, expressed as standard units, and calculated as the logarithm (base 10) of the reciprocal of the concentration of hydrogen ions expressed in grams per liter of solution.
      POLLUTANT.  Any "waste" as defined in G.S. § 143-213(18) and dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, medical wastes, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal, and agricultural waste and certain characteristics of wastewater (e.g., pH, temperature, TSS, turbidity, color, BOD, COD, toxicity, or odor).
      POTW DIRECTOR. The City of Monroe Director of Water Resources and his duly authorized representatives designated with the responsibility for the pretreatment program and enforcement of this Wastewater Ordinance.
      POTW TREATMENT PLANT.  That portion of the POTW designed to provide treatment to wastewater.
      PRETREATMENT or TREATMENT.  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 discharging or otherwise introducing such pollution into a POTW collection system and/or treatment plant. The reduction or alteration may be obtained by physical, chemical or biological processes, or process changes or other means, except as prohibited by 40 CFR Part 403.6(d).
      PRETREATMENT PROGRAM. The program for the control of pollutants introduced into the POTW from non-domestic sources which was developed by the city in compliance with 40 CFR 403.8 and approved by the approval authority as authorized by G.S. § 143-215.3(a)(14) in accordance with 40 CFR 403.11.
      PRETREATMENT REQUIREMENT.  Any substantive or procedural requirement related to pretreatment, other than a pretreatment standard.
      PRETREATMENT STANDARD.  Any prohibited discharge standard, categorical standard, or local limit which applies to an industrial user.
      PUBLICLY OWNED TREATMENT WORKS or MUNICIPAL WASTEWATER SYSTEM. A treatment works as defined by section 212 of the Act, (33 USC § 1292) which is owned in this instance by the city. This definition includes any devices or systems used in the collection, 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 the POTW treatment plant. For the purposes of this chapter, POTW shall also include any sewers that convey wastewater to the POTW from persons outside the city who are, by contract or agreement with the city, or in any other way, users of the city's POTW.
      SEVERE PROPERTY DAMAGE. Substantial physical damage to property, damage to the user's treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. SEVERE PROPERTY DAMAGE does not mean economic loss caused by delays in production.
      SEWER CONNECTION. A tap on a sewer main or manhole and the piping extended from the tap, under the control of the POTW, to the property line, for the purpose of receiving wastewater from a building sewer or private sewer main.
      SIGNIFICANT INDUSTRIAL USER or SIU.  Any industrial user that discharges wastewater into a publicly owned treatment works and that:
         (a)   Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewaters); or
         (b)   Contributes process wastewater which makes up 5% or more of the NPDES or Non-discharge permitted flow limit or organic capacity of the POTW treatment plant. In this context, ORGANIC CAPACITY refers to BOD, TSS and Ammonia; or
         (c)   Is subject to Categorical Pretreatment Standards under 40 CFR Part 403.6 and 40 CFR chapter I, Subchapter N, Parts 405-471; or
         (d)   Is designated as such by the Control Authority on the basis that the industrial user has a reasonable potential for adversely affecting the POTW's operation, or for violating any pretreatment standard or requirement, or for contributing to violations of the POTW's effluent limitations and conditions in its NPDES or non-discharge permit, or for limiting the POTW's sludge disposal options; or
         (e)   Subject to Division approval under 15A NCAC 02H .0907(b), the Control Authority may determine that an industrial user meeting the criteria in paragraphs (a) and (b) above has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, or for violations of the POTW's effluent limitations and conditions in its NPDES or non-discharge permit, or for limiting the POTW's sludge disposal options, and thus is not a Significant industrial user; or
         (f)   Subject to Division approval under 15A NCAC 02H .0907(b), the Control Authority may determine that an industrial user meeting the criteria in paragraph (c) above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a Non-Significant Categorical User; or
         (g)   Subject to Division approval under 15A NCAC 02H .0907(b), the Control Authority may determine that an industrial user meeting the criteria in paragraph (c) above meets the requirements of 40 CFR Part 403.12(e)(3) and thus is a middle tier significant industrial user. Sampling and inspection requirements may be cut in half as per 40 CFR Parts 403.8(f)(2)(v)(C) and 403.12(e)(3).
      SIGNIFICANT NONCOMPLIANCE or SNC.  The status of noncompliance of a significant industrial user when one or more of the following criteria are met. Additionally, any industrial user which meets the criteria in (c), (d), or (h) below shall also be an SNC.
         (a)   CHRONIC VIOLATIONS OF  WASTEWATER DISCHARGE LIMITS, defined here as those in which 66% or more of the measurements taken for the same pollutant parameter (not including flow) during a six-month period exceed (by any magnitude) a numeric pretreatment standard or requirement including instantaneous limit, as defined by 40 CFR Part 403.3(1);
         (b)   TECHNICAL REVIEW CRITERIA (TRC) VIOLATIONS, defined here as those in which 33% or more of the measurements for the same pollutant parameter taken during a six-month period equal or exceed the product of the numeric pretreatment standard or requirement including instantaneous limits, as defined by 40 CFR Part 403.3(1) multiplied by the applicable multiplied by the applicable TRC (TRC = 1.4 for BOD, TSS, fats, oil and grease, 1.2 for all other pollutants (except pH));
         (c)   Any other violation(s) of a pretreatment standard or requirement as defined by 40 CFR Part 403.3(1) (daily maximum, longer-term average, instantaneous limit, or narrative standard) that the Control Authority and/or POTW determines has caused, alone or in combination with other discharges, interference or pass through (including endangering the health of POTW personnel or the general public);
         (d)   Any discharge of a pollutant that has caused imminent endangerment to human health, welfare or to the environment or has resulted in the Control Authority's or the POTW's, if different from the Control Authority, exercise of its emergency authority under 40 CFR Part 403.8 (f)(i)(vi)(B) and § 52.120 (E) of this SUO  to halt or prevent such a discharge;
         (e)   Violations of compliance schedule milestone contained in a pretreatment permit or enforcement order for starting construction, completing construction and attaining final compliance by 90 days or more after the schedule date;
         (f)   Failure to provide, within 45 days after the due date, required reports such as baseline monitoring reports, 90-day compliance reports, periodic self-monitoring reports, and reports on compliance with compliance schedules;
         (g)   Failure to accurately report noncompliance;
         (h)   Any other violation or group of violations that the Control Authority and/or PTOW determines will adversely affect the operation or implementation of the local pretreatment program.
      SLUG LOAD or DISCHARGE. Any discharge at a flow rate or concentration which has a reasonable potential to cause interference or pass through, or in any other way violates the POTW's regulations, local limits, or industrial user permit conditions. This can include but is not limited to spills and other accidental discharges; discharges of a non-routine, episodic nature; a non-customary batch discharge; or any other discharges that can cause a violation of the prohibited discharge standards in § 52.020.
      STANDARD INDUSTRIAL CLASSIFICATION (SIC).  A classification pursuant to the Standard Industrial Classification Manual, 1987, and/or from the North American Industry Classification System issued by the Executive Office of the President, Office of Management and Budget, 1997.
      STORM WATER. Any flow occurring during or following any form of natural precipitation and resulting therefrom.
      SUPERINTENDENT. The person designated by the city to supervise the operation of the publicly owned treatment works and who is charged with certain duties and responsibilities by this chapter, or his duly authorized representative.
      SUSPENDED SOLIDS. The total suspended matter that floats on the surface of, or is suspended in, water, wastewater or other liquids, and which is removable by laboratory filtering.
      UPSET. An exceptional incident in which there is unintentional and temporary noncompliance with categorical pretreatment standards because of factors beyond the reasonable control of the user. An UPSET does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.
      WASTEWATER. The liquid and water-carried industrial or domestic wastes from dwellings, commercial buildings, industrial facilities, mobile sources, treatment facilities and institutions, together with any groundwater, surface water, and storm water that may be present, whether treated or untreated, which are contributed into or permitted to enter the POTW.
      WASTEWATER PERMIT. As set forth in § 52.051.
      WATERS OF THE STATE.  All streams, rivers, brooks, swamps, sounds, tidal estuaries, bays, creeks, lakes, waterways, reservoirs and all other bodies or accumulations of water, surface or underground, natural or artificial, public or private, which are contained within, flow thorough, or border upon the State or any portion thereof.
   (B)   The following abbreviations when used in this chapter shall have the designated meanings:
      BOD      Biochemical Oxygen Demand
      CFR      Code of Federal Regulations
      COD      Chemical Oxygen Demand
      EPA      Environmental Protection Agency
      gpd      Gallons per day
      G.S.      North Carolina General Statutes
      l      Liter
      mg      Milligrams
      mg/l      Milligrams per liter
      NPDES   National Pollution Discharge Elimination System
      O & M      Operation and Maintenance
      POTW      Publicly Owned Treatment Works
      RCRA      Resource Conservation and Recovery Act
      SIC      Standard Industrial Classification
      SWDA      Solid Waste Disposal Act
      TSS      Total Suspended Solids
      TKN      Total Kjeldahl Nitrogen
      USC      United States Code
(Ord. passed 6-22-94; Am. Ord. O-1996-11, passed 5-7-96; Am. Ord. O-2001-05, passed 1-16- 01; Am. Ord. O-2008-11, passed 3-18-08; Am. Ord. O-2013-13, passed 5-21-13)