§ 55.003 DEFINITIONS.
   Unless the text specifically indicates otherwise, the following term and phrases, as used in this chapter shall have the meanings solely for this chapter and shall not constitute the definition of words and phrases for any other chapters and/or other sections of the Lockport Municipal Code:
   ACT or THE ACT. The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251, et seq.
   APPLICABLE PRETREATMENT STANDARDS. For any specific pollutant(s), the more stringent of the following standards:
      (1)   City's prohibitive discharge standards.
      (2)   City's specific limitations on discharge.
      (3)   State pretreatment standards.
      (4)   National categorical pretreatment standards.
   APPROVAL AUTHORITY. Region 5 of EPA, until such time the State of Illinois has an EPA-approved pretreatment program.
   APPROVED POTW PRETREATMENT PROGRAM. A program administered by a POTW that meets the criteria established in 40 CFR Part 403, and which has been approved by a Regional Administrator or State Director in accordance with Section 403.11.
   AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER. An authorized representative of an industrial user may be:
      (1)   A principal executive officer of at least the level of vice president, if the industrial user is a corporation.
      (2)   A general partner or proprietor if the industrial user is a partnership or sole proprietorship, respectively.
      (3)   A duly authorized representative of the individual designated above if such representative is responsible for the overall operation of the facilities from which the indirect discharge originates and only if the authorization is made in writing to the city by a person described above.
   BASELINE REPORT. The report required by 40 CFR Section 403.12(b)(1-7).
   BEST MANAGEMENT PRACTICES (BMPs). Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in this chapter. BMPs also 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.
   BILLABLE BOD5. The amount of BOD5 in a user's wastewater discharged to the city in pounds of BOD5 calculated using the billable flow and concentration of BOD5 in the wastewater as determined by the city.
   BILLABLE FLOW. Either a user's water usage from all sources, or the amount of wastewater discharged to the city, as determined by the city.
   BILLABLE SUSPENDED SOLIDS. The amount of suspended solids in a user's wastewater discharged to the city in pounds of suspended solids calculated using the billable flow and concentration of suspended solids in the wastewater as determined by the city.
   BIOCHEMICAL OXYGEN DEMAND (BOD). The quantity of oxygen, expressed in mg/l, utilized in the biochemical oxidation of organic matter under standard laboratory procedures as described in Standard Methods.
   BOD5 (FIVE DAY BIOCHEMICAL OXYGEN DEMAND)1. The quantity of oxygen utilized in the biochemical oxidation or organic matter under standard laboratory procedures five days at 20°C expressed in terms of weight and concentration (milligrams per liter mg/l) as prescribed in Part 507 of Standard Methods.
   BUILDING DRAIN. That part of the lowest horizontal piping of the drainage system which receives the discharge from soil, waste, and other drainage pipes within the walls of the building and conveys it to the building sewer that begins five feet outside the inner face of the building wall.
   BUILDING SEWER. A sewer which is an extension of the building drain and which conveys wastewater from the premises of a user to the city system.
   BYPASS. The intentional diversion of wastestreams from any portion of an industrial user's treatment facility.
   CATEGORICAL INDUSTRY. An industrial user which is subject to a National Categorical Pretreatment Standard.
   CATEGORICAL STANDARDS or CATEGORICAL PRETREATMENT STANDARDS. (See NATIONAL CATEGORICAL PRETREATMENT STANDARDS).
   CHEMICAL OXYGEN DEMAND (COD)1. The quantity of oxygen utilized in the chemical oxidation of organic matter under standard laboratory procedures expressed in terms of weight and concentration (milligrams per liter {mg/l}) as prescribed in Part 508 of Standard Methods.
   CITY. The City of Lockport.
   COMBINED SEWER. A sewer that is designed as a sanitary sewer and a storm sewer.
   COMBINED WASTE STREAM FORMULA. The formula as found in 40 CFR Section 403.6(e).
   COMMERCIAL USER. A user engaged in retail or wholesale trades or the transaction of business involving the purchase or sale of goods or merchandise or involving the provision of services combined with the purchase or sale of goods or merchandise, whether for profit or not for profit, the commercial users class shall also include entities such as fraternal organization, professional organizations, labor unions and recreational facilities other than park districts, and those governmentally owned or tax supported.
   COMPATIBLE POLLUTANT. Biochemical oxygen demand (BOD), chemical oxygen demand (COD), fats-oils-greases (FOG), suspended solids, pH, and fecal coliform bacteria; plus any additional pollutants identified in the city's NPDES permit, where the POTW treats such pollutants and, in fact, does treat such pollutants to the degrees required by the city's NPDES permit.
   COMPOSITE SAMPLE. A composite sample shall consist of the combination of three or more grab samples collected within a 24 hour period, with each grab sample being taken at not less than one hour intervals.
   CONTROL AUTHORITY. The city if the city pretreatment program has been approved.
   CONTROL MANHOLE. A structure located on a site from which industrial wastes are discharged. Where feasible, the manhole shall have an interior drop. The purpose of a "control manhole" is to provide access for the city representative to sample and/or measure discharges.
   COOLING WATER. The water discharged from any use such as air conditioning, cooling or refrigeration, or to which the only pollutant added is heat.
   DAILY MAXIMUM. The analytical result showing the greatest concentration of a constituent measured from a sample in one day, shown in mg/l.
   DAILY MAXIMUM LIMIT. The equivalent mass total determined by multiplying the actual average daily flow by the concentration-based daily maximum, shown in pounds per day.
   DIRECT DISCHARGE. The discharge of treated or untreated wastewater directly to the waters of the State of Illinois.
   DIRECTOR. The Director of the Illinois Environmental Protection Agency.
   DOMESTIC USER. A user who discharges only domestic wastewater.
   DOMESTIC WASTEWATER. Wastewater having a normal strength of 200 mg/l of BOD and 250 mg/l of suspended solids or less. Domestic wastewater shall be interchangeable with sewage.
   ENFORCEMENT DIVISION DIRECTOR. One of the directors of the enforcement divisions within the regional offices of the USEPA or this person's designated representative. Now called Water Division Director in USEPA Region V.
   EXISTING SOURCE. Any source of discharge, the construction or operation of which commenced prior to the publication by EPA of proposed categorical pretreatment standards, which will be applicable to such source if the standard is thereafter promulgated in accordance with Section 307 of the Act.
   FATS, OILS, OR GREASES (FOG). The quantity of free extractable matter expressed in terms of weight and concentration (milligrams per liter (mg/l)) as prescribed in Part 503 of Standard Methods.
   FECAL COLIFORM. Any number of organisms common to the intestinal tract of man and animals whose presence in sanitary sewage is an indicator of pollution.
   FLOW. A moving volume of wastewater.
   FLOW RATE. A moving volume of wastewater per a unit of time.
   GARBAGE. Solid wastes from the domestic and commercial preparation, cooking, and dispensing, of food; and from the commercial handling, storage, and sale of produce.
   GENERAL PRETREATMENT REGULATIONS. 40 CFR, Part 403 entitled "General Pretreatment Regulations for Existing and New Sources," as amended.
   GOVERNMENTAL USER. A user involved in legislative, judicial, administrative, and regulating activities of federal, state, and local governments.
   GRAB SAMPLE. A sample, which is taken from, a waste stream on a one time basis with no regard to the flow in the waste stream and without consideration of time.
   HOLDING TANK WASTE. Any waste from holding tanks such as vessels, chemical toilets, campers, trailers, septic tanks, and vacuum-pump tank trucks.
   ILLINOIS ENVIRONMENTAL PROTECTION AGENCY (IEPA). The Illinois Environmental Protection Agency, or where appropriate, the terms may also be used as a designation for the Director or other duly authorized official of said agency. Further defined as that agency or agencies of the state, any divisions thereof or successors thereto, authorized by present and subsequent acts of the legislature thereof to regulate and control matters in respect to the environment, and particularly in respect to wastewater discharge, management, maintenance, and operations of the POTW.
   INCOMPATIBLE POLLUTANT. All pollutants other than compatible pollutants as defined herein.
   INDIRECT DISCHARGE. The introduction of pollutants into a POTW from any non-domestic source regulated under Section 307(b), (c), or (d) of the Act.
   INDUSTRIAL USER. Any non-governmental, non-residential user of a publicly owned treatment works which discharges more than the equivalent of 25,000 gallons per day (gpd) of sanitary wastes and which is identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under one of the following divisions:
      (1)   Division A. Agriculture, Forestry and Fishing;
      (2)   Division B. Mining;
      (3)   Division D. Manufacturing;
      (4)   Division E. Transportation, Communications, Electric, Gas, and Sanitary Services; and
      (5)   Division I. Services.
   INDUSTRIAL WASTEWATER or INDUSTRIAL WASTE. Any solid, liquid or gaseous substance discharged, permitted to flow or escaping from any industrial, manufacturing, commercial or business establishment or process or from the development, recovery of processing of any natural resource as distinct from sanitary sewage.
   INSIGNIFICANT INDUSTRIAL USER. An industry which discharges only domestic wastewater and does not have any reasonable chance to discharge a non-domestic wastewater.
   INSTITUTIONAL USER. A user involved in social, religious, or education activities such as tax supported schools, libraries or park districts, private or parochial schools and churches.
   INTERFERENCE. A discharge which, alone or in conjunction with a discharge or discharges from other sources, both:
      (1)   Inhibits or disrupts the POTW, its treatment processes or operations, or its sludge processes, use or disposal; and
      (2)   Therefore, 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) or of the prevention of sewage sludge use or disposal in compliance with the following statutory provisions and regulations or permits issued thereunder (or more stringent state or local regulations): Section 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, the Toxic Substances Control Act, and the Marine Protection, Research and Sanctuaries Act.
   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.
   MILLIGRAMS PER LITER (mg/l). A unit of the concentration of water or wastewater constituent. It is 0.001 g of the constituent in 1,000 ml of water. It has replaced the unit formerly used commonly, parts per million (ppm), to which it is approximately equivalent, in reporting the results of water and wastewater analyses.
   NATIONAL CATEGORICAL PRE- TREATMENT STANDARDS or FEDERAL CATEGORICAL PRETREATMENT STANDARDS
OR CATEGORICAL STANDARDS. Any regulation containing pollutant discharge limits promulgated by the USEPA in accordance with Section 307(b) and (c) of the Act (33 USC 1317) which applies to a specific category of industrial users.
   NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. Any permit or requirement issued by the Illinois Environmental Protection Agency (IEPA), or US Environmental Protection Agency (USEPA) pursuant to the Federal Water Pollution Control Act, as amended (33 USC 1251 et seq.), for the purpose of controlling sewage, industrial wastes, or other wastes under the authority of Section 402 of the Act.
   NATURAL OUTLET. Any outlet in a water course, pond, ditch, lake, or other body of surface or groundwater.
   NEW SOURCE. 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 which 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;
      (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.
   NPDES PERMIT. A permit issued to a POTW pursuant to Section 402 of the Act.
   NPDES STATE. A state (as defined in 40 CFR Section 122.2) or interstate water pollution control agency with an NPDES permit program approved pursuant to Section 402(b) of the Act.
   NON-CONTACT COOLING WATER. Water used for cooling which does not come into direct contact with any raw material, intermediate product, waste product, or finished product.
   OPERATION AND MAINTENANCE. Activities required to assure the dependable and economical function of the utility system.
      (1)   MAINTENANCE. Preservation of functional integrity and efficiency of equipment and structures. This includes preventive maintenance, corrective maintenance, and replacement as needed.
      (2)   OPERATION. Control of the unit processes and equipment which makes the utility system. This includes financial and personnel management records, laboratory control, process control, safety and emergency operation planning.
   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 of duration of a violation).
   PERMITTED WASTEWATER HAULER VEHICLE. A vehicle used for hauling wastewater and/or sludge which has been granted a permit by:
      (1)   IEPA as a "special waste hauler" vehicle for all wastewater and/or sludge other than septage; or
      (2)   The Illinois Department of Public Health (IDPH) as a "septage hauler" vehicle for septage.
   PERSON. The state or any agency or institution therefore, any municipality, governmental subdivision, public or private corporation, individual, partnership, or other entity, including, but not limited to, association, commission or any interstate body, and including any officer or governing or managing body of any municipality, governmental subdivision or public or private corporation, or other entity.
   pH. The logarithm (base ten) of the reciprocal of the concentration of hydrogen ions expressed in standard units.
   POLLUTANT. Any dredged spoil, solid waste, incinerator residue filter backwash, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal, and agricultural waste discharged into water.
   POLLUTION or WATER POLLUTION. The man-made or man-induced alteration of the chemical, physical, biological, and radiological integrity of water.
   POPULATION EQUIVALENT (P.E.). 0.17 pound of five-day biochemical oxygen demand as prescribed in Standard Methods and also 100 gallons per person per day when referenced to flow.
   POTW. See PUBLICLY OWNED TREAT-MENT WORKS.
   POTW TREATMENT PLANT. That portion of the POTW which is designed to provide treatment (including recycling and reclamation) of municipal sewage and industrial waste. For purposes of this subchapter it is the City of Lockport.
   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 pollutants into a POTW. The reduction or alteration may be obtained by physical, chemical or biological processes, or process changes, or by other means, except as prohibited by 40 CFR, Section 403.6(d). Appropriate pretreatment technology includes control equipment, such as equalization tanks or facilities, for protection against surges or slug loadings that might interfere with otherwise be or incompatible with the POTW. However, where wastewater from a regulated process is mixed in an equalization facility with unregulated wastewater or with wastewater from another regulated process, the effluent from the equalization facility must meet an adjusted pretreatment limit calculated in accordance with 40 CFR, Section 403.6(e).
   PRETREATMENT REQUIREMENTS. Any substantive or procedural requirement related to pretreatment, other than a National Pretreatment Standard.
   PRETREATMENT STANDARDS or STANDARDS. Prohibited discharge standards, categorical pretreatment standards and local limits.
   PROHIBITED DISCHARGE. Any pollutant(s) which cause pass through or interference. In addition, the following pollutants shall not be introduced into a POTW:
      (1)   Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140°F or 60°C using the test methods specified in 40 CFR 261.21;
      (2)   Pollutants which will cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, unless the works is specifically designed to accommodate such discharges;
      (3)   Solid or viscous pollutants in amounts which will cause obstruction to the flow in the POTW resulting in interference;
      (4)   Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a discharge at a flow rate and/or pollutant concentration which will cause interference with the POTW;
      (5)   Heat in amounts which will inhibit biological activity in the POTW resulting in interference, but in no case heat in such quantities that the temperature at the POTW treatment plant exceeds 40°C (104°F) unless the approval authority, upon request of the POTW, approves alternate temperature limits;
      (6)   Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through;
      (7)   Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; and
      (8)   Any trucked or hauled pollutants, except at discharge points designated by the POTW.
   PROPERLY SHREDDED GARBAGE. 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 ½ inch in any dimension.
   PUBLICLY OWNED TREATMENT WORKS (POTW). A treatment works as defined by Section 212 of the Act, (33 USC 1292) which is owned by a state or a municipality. This 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 a POTW. For the purposes of this chapter, POTW shall also include any sewers that convey wastewaters to the POTW from persons outside the city who are, by contract or agreement with the city, users of the sanitary sewers. This term also means the municipality, as defined in Section 502(4) of the Act, which has jurisdiction over the indirect discharges to and the discharges from such a treatment works, which for this chapter is the City of Lockport.
   PUBLIC SEWER. A sewer in which all owners of abutting properties have equal rights, and is controlled by the city.
   REGIONAL ADMINISTRATOR or ADMINISTRATOR. The Regional Administrator of USEPA Region V.
   REPLACEMENT. Expenditures for obtaining and installing equipment, accessories, or appurtenances which are necessary during the useful life of the utility system to maintain the capacity and performance for which such works were designed and constructed. The term OPERATION AND MAINTENANCE includes replacement.
   RESIDENTIAL USER. A user who resides in dwelling units such as detached, semi-detached and row houses, mobile homes, apartments, and permanent multi-family dwellings.
   SANITARY SEWER. A sewer, which carries domestic and industrial (non-domestic wastewater); and to which storm, surface and groundwater are not intentionally admitted.
   SEPTAGE. The contents of a septic tank which serves a residential structure and to which only domestic wastewater is discharged.
   SEWAGE. A combination of the water-carried wastes from residences, business building, institutions, and industrial establishments, together with such ground, surface, and storm waters as may be present.
   SEWAGE TREATMENT PLANT. Any arrangement of devices and structure used for treating sewage.
   SEWAGE WORKS. All facilities for collection, pumping, treating, and disposing of sewage.
   SEWER. A pipe or conduit for carrying sewage.
   SHALL is mandatory, MAY is permissive.
   SIGNIFICANT INDUSTRIAL USER or SIGNIFICANT USER. Any industrial user which discharges to the POTW will be classified as one of the following categories:
      (1)   Categorical Significant User Category
         (a)   (Class C-l)
            1.   Major user. Any industrial user which discharges to the POTW and meets any of the following:
               a.   Is subject to National Categorical Pretreatment Standards.
               b.    Discharges a nondomestic wastewater of 25,000 gpd or more.
               c.    Contributes a wastewater which makes up 5% or more of the average dry weather hydraulic, organic (BOD), or solids (TSS) capacity of city.
               d.   Has a reasonable potential, in the opinion of the Lockport Sanitary Sewer Department Superintendent, to discharge a wastewater, which would adversely affect the POTW (i.e., interference, sludge contamination, pass-through, or hazardous materials) or for violating any pretreatment standard or requirement.
         (b)   (Class C-2)
            1.   Minor user. Any industrial user which discharges to the POTW and meets any of the following:
               a.   Is subject to National Categorical Pretreatment Standards.
               b.    Discharges a nondomestic wastewater less than 25,000 gpd.
               c.    Contributes a wastewater which makes up less than 5% of the average dry weather hydraulic, organic (BOD), or solids (TSS) capacity of the city.
               d.    Does not have a reasonable potential, in the opinion of the Lockport Sanitary Sewer Superintendent, to discharge a wastewater, which would adversely affect the POTW (i.e., interference, sludge contamination, pass-through, or hazardous materials) or for violating any pretreatment standard or requirement.
      (2)   Non-Categorical Significant Industries
         (a)   (Class I-1)
            1.   Major users. Any industrial user which discharges to the POTW and meets any of the following:
               a.    Industry is not subject to National Categorical Pretreatment Standards.
               b.    Discharges a non- domestic wastewater of 25,000 gpd or more.
               c.    Contributes a wastewater which makes up 5% or more of the average dry weather hydraulic, organic (BOD), or solids (TSS) capacity of the city.
               d.   Has a reasonable potential, in the opinion of the Lockport Sanitary Sewer Department Superintendent, to discharge a wastewater, which would adversely affect the POTW (i.e., interference, sludge contamination, pass-through, or hazardous materials) or for violating any pretreatment standard or requirement.
         (b)   (Class I-2)
            1.   Minor users. Any industrial user, which discharges to the POTW and meets any of the following:
               a.    Industry is not subject to National Categorical Pretreatment Standards.
               b.    Discharges a non-domestic wastewater of less than 25,000 gpd.
               c.    Contributes a wastewater, which makes up less than 5% of the average dry weather hydraulic, organic (BOD) or solids (TSS) capacity of the city.
               d.    Does not have a reasonable potential, in the opinion of the Lockport Sanitary Sewer Department Superintendent, to discharge a wastewater which would adversely affect the POTW, (i.e., interference, sludge contamination, pass-through or hazardous materials) or for violating any pretreatment standard or requirement.
   SIGNIFICANT NONCOMPLIANCE (SNC).
      (1)   Chronic violations of wastewater discharge limits, defined here as those in which 66% or more of all of the measurements taken during a six-month period exceed (by any magnitude) a numeric pretreatment standard or requirement including instantaneous limits for the same pollutant parameter.
      (2)   Technical review criteria (TRC) violations, defined here as those in which 33% or more of all of the measurements for each pollutant parameter taken during a six-month period equal or exceed the product of the numeric pretreatment standard or requirement including instantaneous limits multiplied by the applicable TRC (TRC=1.4 for BOD, TSS fats, oil, and grease, and 1.2 for all other pollutants except pH).
      (3)   Any other violation of a pretreatment standard or requirement (daily maximum or long term average, instantaneous limit or narrative standard) that the control authority determines has caused, along or in combination with other discharges, interference or pass through (including endangering the health of POTW personnel or the general public);
      (4)   Any discharge of a pollutant that has caused imminent endangerment to human health, welfare or to the environment or has resulted in the Superintendent's exercise of its emergency authority under § 55.055 to halt or prevent such a discharge;
      (5)   Failure to meet within 90 days after the schedule date, a compliance schedule milestone contained in a local control mechanism or enforcement order for starting construction, completing construction, or attaining final compliance;
      (6)   Failure to provide, within 30 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;
      (7)   Failure to accurately report non-compliance;
      (8)   Any other violation or group of violations which may include a violation of BMP's, which the Superintendent determines, will adversely affect the operation or implementation of the local pretreatment program.
   SIGNIFICANT VIOLATION. A violation of this chapter which remains uncorrected 45 days after notification of such noncompliance; or which is part of a pattern of noncompliance over a 12 month period; or which involves failure to accurately report noncompliance; or which resulted in the Lockport Sanitary Sewer Department exercising its emergency authority § 55.055.
   SLUDGE. The solids separated from the liquids during wastewater treatment processes.
   SLUG or SLUG LOAD. 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.
   STANDARD METHODS. The analytical 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; and in accordance with procedures established by the Administrator pursuant to Section 304(h) of the Act and contained in 40 CFR, Part 136 and amendments thereto.
   STATE. State of Illinois.
   STATE PRETREATMENT STANDARDS. Authority granted to establish the responsibilities of government and industry to implement regulations to fulfill three objectives:
      (1)   To prevent the introduction of pollutants into POTWs which will interfere with the operation of a POTW, including interference with its use or disposal of municipal sludge;
      (2)   To prevent the introduction of pollutants into POTWs which will pass through the treatment works or otherwise be incompatible with such works; and
      (3)   To improve opportunities to recycle and reclaim municipal and industrial wastewaters and sludges.
   STORET. The national water quality data system of the US Environmental Protection Agency (USEPA).
   STORM SEWER. A sewer designated to carry only storm waters, surface runoff, street wash waters, and drainage.
   STORM WATER. Any flow occurring during or following any form of natural precipitation and resulting therefrom.
   SUPERINTENDENT. The Superintendent of the Lockport Sanitary Sewer Department is designated by the city to supervise the operation of the publicly owned utility system and is charged with certain duties and responsibilities by this chapter. The term may also be used for his duly authorized representative.
   SURCHARGE. A charge in addition to the base user charge for the treatment of BOD and suspended solids discharged to a sanitary sewer that is in excess of 200 mg/l of BOD and 250 mg/l of suspended solids.
   T. As in Cyanide-T means total.
   TOTAL DISSOLVED SOLIDS or TOTAL FILTERABLE RESIDUE. Those solids capable of passing through a standard glass fiber filter and dried to constant weight at 180°C.
   TOTAL METALS. The sum of the concentration of the list of metals contained in Section 34-202.4.1 of the ordinance.
   TOTAL SOLIDS. The sum of total suspended solids and total dissolved solids.
   TOTAL, SUSPENDED SOLIDS, or TOTAL NONFILTERABLE SOLIDS. The total suspended matter, expressed in milligrams per liter, that floats on the surface of, or is suspended in, water, wastewater, or other liquids, and which are retained on a Reeve Angel Type 934A glass filter disc and dried to constant weight at 103°- 105°C as prescribed in Standard Methods.
   TOTAL TOXIC ORGANICS. The summation of quantified values greater than 0.01 milligrams per liter for the toxic organics as specified in the applicable regulations.
   TOXIC POLLUTANT. Any pollutant or combination of pollutants listed as toxic in regulations promulgated by the Administrator of the US Environmental Protection Agency under the provision of Section 307(a) of the Act or other Acts.
   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 industrial user. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation.
   USEFUL LIFE. The estimated period during which the collection system and/or utility system will be operated and shall be 25 years from the date of start-up of any wastewater facilities.
   USEPA or US ENVIRONMENTAL PROTECTION AGENCY. The US 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.
   USER. Any person who contributes, causes, or permits the contribution of wastewater into the sanitary sewers.
   USER CHARGE SYSTEM. The system of charges levied on user to recover the user's proportionate share of the costs of operation, maintenance, and replacement on new and old wastewater collection/treatment facilities, pursuant to Sections 204(b)(1)(A) and 201(h)(2) of the Act; and 40 CFR Part 35, Subpart I of the Federal Register, as amended.
   WASTEWATER. The combination of the liquid and water carrying wastes from residences, commercial buildings, industrial plants, and institutions including polluted cooling water.
      (1)   DOMESTIC WASTEWATER. The combination of liquid and water-carried wastes discharged from toilet and other sanitary plumbing facilities.
      (2)   INDUSTRIAL WASTEWATER. A combination of liquid and water-carried waste, discharged from any industrial user including the wastewater from pretreatment facilities and polluted cooling water.
      (3)   COMBINED WASTEWATER. Wastewater including domestic wastewater, industrial wastewater, infiltration, and inflow carried to the POTW treatment facilities by a sewer.
   WASTEWATER DISCHARGE PERMIT or SEWER USE PERMIT. The document or documents issued to significant industrial user by the city in accordance with the ordinance.
   WASTEWATER HAULER or SLUDGE HAULER. Any person engaged in transporting wastewater or sludge as a commercial venture.
   WATER DIVISION DIRECTOR. See definition for ENFORCEMENT DIVISION DIRECTOR.
   WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
   WATERS OF THE STATE. All streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, reservoirs, aquifers, irrigation systems, drainage systems, and all other bodies of accumulations of water, surface or underground, natural or artificial, public or private, which are contained within, flow through, or border upon the state or any portion thereof.
(Ord. 16-005, passed 5-18-16)