Unless the context specifically indicates otherwise, the meaning of terms used in this chapter shall be as follows:
ACT or THE ACTThe Federal Water Pollution Control Act, also known as the "Clean Water Act," 33 U.S.C. § 1251 et seq.
APPROVAL AUTHORITYThe Maine Department of Environmental Protection.
[Amended 6-9-2008 by Ord. No. 08-195]
AUTHORIZED REPRESENTATIVE OF THE USER(1) If the user is a corporation:
(a) The president, secretary, treasurer or a vice president of the corporation in charge of a principal business function or any other person who performs similar policymaking or decisionmaking functions for the corporation; or
(b) The manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions that govern the operation of the regulated facility, including having the explicit or implicit duty of making major capital investment recommendations, and initiate and direct other 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 individual wastewater discharge permit requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.
[Amended 6-9-2008 by Ord. No. 08-195]
(2) If the user is a partnership or sole proprietorship, a general partner or proprietor, respectively.
(3) If the user is a federal, state or local government facility, a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility or their designee.
(4) The individuals described in Subsections
(1) through
(3) of this definition 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.
BEST MANAGEMENT PRACTICES (BMPs)Schedule of activities, prohibitions of practices, maintenance procedures, and other management practices to implement the prohibitions listed in §
252-9. 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.
[Added 6-9-2008 by Ord. No. 08-195]
BIOCHEMICAL OXYGEN DEMANDThe quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures for five days at 20º C., expressed in milligrams per liter (mg/l).
BUILDING DRAINThat part of the lowest piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside a building and conveys it to the building sewer, beginning eight feet (2.5 meters) outside of the building wall.
BUILDING SEWERThe extension from the building drain to the POTW or other place of disposal.
CATEGORICAL PRETREATMENT STANDARD or CATEGORICAL STANDARDAny regulation containing pollutant discharge limits promulgated by the EPA in accordance with Section 307(b) and (c) of the Act [33 U.S.C. § 1317(b) and (c)] which apply to a specific category of users and which appear in Title 40 of the Code of Federal Regulations, Chapter
1, Subchapter N, Parts 405 through 471.
CATEGORICAL USERAny user of the City's wastewater treatment system whose discharges are regulated under 40 CFR 403 and 40 CFR 405 through 471 or who is otherwise subject to United States Environmental Protection Agency pretreatment requirements as a categorical user.
CITY ENGINEERThe City official appointed and designated by the City Manager as the City Engineer for the City of Bangor.
COLORThe optical density at the visual wavelength of maximum absorption, relative to distilled water. One-hundred-percent transmittance is equivalent to zero optical density.
COMPOSITE SAMPLEThe sample resulting from the combination of individual wastewater samples taken at selected intervals based on an increment of either flow or time.
DAILY MAXIMUM LIMITThe 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.
[Added 6-9-2008 by Ord. No. 08-195]
DIRECTORThe Wastewater Treatment Plant Director of the City's POTW or their authorized deputy, agent or representative.
DISCHARGEAny substance knowingly put or allowed to flow into any part of the City's POTW.
DISCHARGERAll industrial users, including categorical users and significant industrial users as defined in this section. "Discharger" also refers to any nonindustrial user of the City's POTW which discharges wastewater into the POTW.
DOMESTIC SEWAGEWater and water-carried wastes and sewage normally discharged into the sanitary sewers from dwellings, including single-family homes, multifamily homes and hotels, and from office buildings, factories and institutions, but not including stormwater drainage or surface water drainage and not including industrial wastes as defined in this section.
ENVIRONMENTAL PROTECTION AGENCYThe United States Environmental Protection Agency or, where appropriate, the Regional Water Management Division Director or other duly authorized official of said agency.
EXCESSIVE LOADINGAny discharge resulting in a BOD or TSS loading in excess of 350 mg/l or a loading of fats, oils or greases of animal or vegetable origin or oil and grease or other petroleum or mineral oil products in excess of 140 mg/l. Where a correlation is established between BOD and COD or TOC, a discharge in excess of the equivalent COD or TOC loading shall constitute excessive loading.
[Amended 6-27-1994 by Ord. No. 94-274]
EXISTING SOURCEAny source of discharge the construction or operation of which commenced prior to the publication by the 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.
GARBAGESolid waste from the domestic and commercial preparation, cooking and dispensing of food and from the handling, storage and sale of food products and produce.
GRAB SAMPLEA sample which is taken from a waste stream on a one-time basis without regard to the flow in the waste stream and without consideration of time.
HAZARDOUS WASTEA hazardous waste as that term is defined in 40 CFR 261 or Maine Department of Environmental Protection regulations Chapter 850.
HIGH-STRENGTH CONVENTIONAL WASTEAny nonindustrial waste of a substantially greater density, toxicity or acidity than normal domestic sewage, including all wastes likely to cause excessive loading as defined in this section.
INDIRECT DISCHARGE or DISCHARGEThe introduction of pollutants into the POTW from any nondomestic source regulated under Section 307(b), (c) or (d) of the Act.
INDUSTRIAL USER or USERA source of indirect discharge. This term covers discharges from any source, including agriculture, forestry, fishing, mining, manufacturing, transportation, communication, electrical, gas and sanitary services and other industrial services discharging into the POTW any industrial waste or discharging into the POTW any waste other than domestic sewage as defined in this section. This term may also apply to any other source of pollutant which adversely affects the POTW.
INDUSTRIAL WASTEAll water, water-carried solids, liquid and gas wastes resulting from any industrial, manufacturing or food processing operation or process or from the development of any natural resource or any mixture of these fluids and domestic sewage or any mixture of these fluids with any other water or with any other liquid.
INSTANTANEOUS MAXIMUM ALLOWABLE DISCHARGE LIMITThe maximum concentration or loading of a pollutant allowed to be discharged at any time, determined from the analysis of any grab or composite sample collected, independent of the industrial flow rate and the duration of the sampling event.
INTERFERENCEA discharge that, alone or in conjunction with a discharge or discharges from other sources, both:
(1) Inhibits or disrupts the City's POTW, treatment processes or operations or its sludge processes, use or disposal; and
(2) Which thus contributes to cause a violation of any requirement of the City's MEPDES permit, including an increase in the magnitude or duration of a violation, or of the prevention of sludge use or disposal in compliance with statutory provisions and regulations or permits issued under Section 405 of the Clean Water Act, RCRA, the Clean Air Act, SWDA, the Toxic Substances Control Act, the Marine Protection, Research and Sanctuaries Act and any state regulations contained in any state sludge management plan prepared pursuant to Subtitle D of RCRA.
[Amended 6-9-2008 by Ord. No. 08-195]
MASS-BASED LIMITATIONSUsers implementing process changes, including best management practices, may request permit discharge limitations be based on mass limitations in lieu of concentration-based limitations. The intent of mass-based limitations is to encourage and allow best management practices, pollution prevention and/or water conservation measures that may result in increased pollutant concentrations while not increasing actual mass of pollutant discharged. Mass-based limitations shall be calculated from current, pollutant-specific concentration and user discharge flow. Mass-based limitations shall not exceed the previous mass of specific pollutant discharged (prior to the implementation of process changes or best management practices) based on the historic performance of that user. Decisions on granting requests for mass-based limitations will be based on user-specific information and current operating conditions of the POTW and will be at the discretion of the Director. Implementation of mass-based limitations shall not contravene any requirements or limitations of federal or state law and/or regulations implemented thereunder and may not waive applicable categorical pretreatment standards.
[Added 6-9-2008 by Ord. No. 08-195]
MEDICAL WASTEIsolation 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 LITERA weight to volume ratio. The figure appearing before the symbol "mg/l" shall be the number of milligrams to be found in one liter of the substance being tested. This figure can be transposed to pounds per million gallons of water by multiplying said figure by 8.34.
NATURAL OUTLETAny outlet into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
NEW SOURCE(1) 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 of the Act, provided that:
(a) The building, structure, facility or installation is constructed at a site at which no other source is located; or
(b) The building, structure, facility or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or
(c) 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 the sources 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.
(2) 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 Subsection
1(b) or
(c) of this definition above but otherwise alters, replaces or adds to existing process or production equipment.
(3) Construction of a new source as defined under this section has commenced if the owner or operator has:
(a) Begun, or caused to begin, as part of a continuous on-site construction program, any placement, assembly or installation of facilities or equipment or 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
(b) Entered into a binding contractual obligation for the purchase of facilities or equipment which is intended to be used in their 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 subsection.
NONCONTACT COOLING WATERWater used for cooling which does not come into direct contact with any raw material, intermediate product, waste product or finished product.
NORMAL DOMESTIC SEWAGESewage in which the average concentration of TSS does not exceed 250 mg/l and in which the five-day BOD does not exceed 250 mg/l and fats, oils or greases of animal or vegetable origin or oil and grease and other petroleum or mineral oil products do not exceed 100 mg/l.
[Amended 6-27-1994 by Ord. No. 94-274]
NPDESThe National Pollutant Discharge Elimination System permit program of the EPA.
OWNERThe owner, tenant, occupant or person in charge of any building or premises or any person acting in the owner's behalf.
PASS-THROUGHAny discharge from the City's POTW into waters of the United States in quantities or concentrations which, alone or in conjunction with a discharge or discharges from other sources, cause a violation of any requirement of the City's MEPDES permit, including an increase in the magnitude or duration of a violation.
[Amended 6-9-2008 by Ord. No. 08-195]
PERSONAny individual, partnership, firm, company, association, society, corporation, group, joint-stock company, trust, estate, governmental entity or any other legal entity of whatever relationship or their legal representatives, agents or assigns. This definition includes all federal, state or local governmental entities.
pHThe logarithm (base 10) of the reciprocal of the hydrogen ion concentration expressed in moles per liter. pH shall be determined by standard methods as defined in this section.
POLLUTANTAny dredged spoil, solid waste, incinerator residue, sewage, garbage, sludge, pretreatment by-products, munitions, wastewater, medical wastes, chemical wastes, biological materials, metals, oil and grease, radioactive materials, heat, wrecked or discharged equipment, rock, sand, cellar dirt, agricultural and industrial wastes and other waste or material that alters or adversely affects the characteristics of the wastewater (i.e., pH, temperature, TSS, turbidity, color, BOD, COD, toxicity, TTO, TOC or odor).
PREMISESAny building or lot under individual ownership or individual use where water service is metered independently or that discharges wastewater to the POTW.
PRETREATMENTThe 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 PROGRAM COORDINATORThe City's Director of Water Quality Management or a designated assistant responsible for supervision of the City's wastewater pretreatment program.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
PRETREATMENT REQUIREMENTSAny substantive or procedural requirement related to pretreatment imposed on a user, other than a pretreatment standard.
PROPERLY SHREDDED GARBAGEThe wastes from the preparation, cooking and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than 1/2 inch (1.27 centimeters) in any dimension.
PUBLICLY OWNED TREATMENT WORKSA treatment works, as defined by Section 212 of the Act (33 U.S.C. § 1292), which is owned by the City. This definition includes any devices or systems used in the collection, storage, treatment, recycling and reclamation of wastewater of a liquid nature and any conveyances which convey wastewater to a treatment plant.
PUBLIC SEWERA sewer in which all owners of abutting properties have equal rights and which is controlled by a public authority.
SANITARY SEWERA sewer which carries wastewater and to which stormwaters, surface waters and groundwaters are not intentionally admitted.
SEPTIC TANK WASTEAny wastewater from holding tanks, such as vessels, chemical toilets, campers, trailers and septic tanks.
SEWAGEHuman excrement and gray water (household showers, dishwashing operations, etc.).
SEWAGE WORKSAll facilities for collecting, pumping, treating and disposing of wastewater.
SEWERA pipe or conduit for carrying wastewater.
SEWER EXTENSIONThe connection of any public or private sewer to the existing sewer system, except as required under §
252-5D of this chapter.
SIGNIFICANT INDUSTRIAL USER(1) A user subject to categorical pretreatment standards; or
(2) A user that:
(a) Discharges an average of 25,000 gpd or more of process wastewater to the POTW, excluding sanitary, noncontact cooling and boiler blowdown wastewater; or
(b) Contributes a process waste stream which makes up 5% or more of the average dry weather hydraulic or organic capacity of the POTW; or
(c) 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.
(3) Upon a finding that a user meeting the criteria in Subsection
(2) 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 a 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.
SIGNIFICANT NONCOMPLIANCEIncludes the following:
(1) Chronic violations of wastewater discharge limits, defined here as those violations in which 66% or more of all the measurements taken for the same pollutant parameter during a six-month period exceed (by any magnitude) a numeric pretreatment standard or requirement, including instantaneous limits as defined in §
252-3;
[Amended 6-9-2008 by Ord. No. 08-195]
(2) Technical review criteria (TRC) violations, defined here as those in which 33% or more of wastewater measurements taken for each pollutant parameter during a six-month period equals or exceeds the product of the numeric pretreatment standard or requirement, including instantaneous limit, as defined in §
252-3, multiplied by the applicable criteria 1.4 for BOD, TSS, fats, oil and grease, and 1.2 for all other pollutants except pH);
[Amended 6-9-2008 by Ord. No. 08-195]
(3) Any other violation of a pretreatment standard or requirement as defined by §
252-3 (daily maximum, long-term average, instantaneous limit, or narrative standard) that the Director or Pretreatment Program Coordinator 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 as defined in this section;
[Amended 6-9-2008 by Ord. No. 08-195]
(4) Any discharge of a pollutant that has caused an imminent danger to human health, including the health of the City's POTW personnel, or to the environment or has required an exercise of the City's emergency authority to halt the discharge under 40 CFR 403.8(f)(2)(vi)(B);
(5) Failure to meet, within 90 days of the scheduled date, a compliance schedule milestone contained in an individual wastewater discharge permit or enforcement order for starting construction, completing construction, or attaining final compliance;
[Amended 6-9-2008 by Ord. No. 08-195]
(6) Failure to provide, within 30 days after the due date, any required reports, including baseline monitoring reports, reports on compliance with categorical pretreatment standard deadlines, periodic self-monitoring reports, and reports on compliance with compliance schedules;
[Amended 6-9-2008 by Ord. No. 08-195]
(7) Failure to accurately report any noncompliance with permit requirements; or
(8) Any other violation or group of violations, which may include a violation of best management practices, which the Director determines will adversely affect the operation or implementation of the City's pretreatment program.
[Amended 6-9-2008 by Ord. No. 08-195]
SLUDGEA by-product of the primary and secondary treatment processes of the POTW, also known as "biosolids." This term does not include by-products resulting from the pretreatment of industrial wastes.
SLUG or SLUG LOADAny discharge at a flow rate or concentration which could cause a violation of the general prohibitions of §
252-9A and the specific prohibitions of §
252-9B of this chapter. A "slug discharge" is any discharge of a nonroutine, episodic nature, including but not limited to an accidental spill or a noncustomary 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.
[Amended 6-9-2008 by Ord. No. 08-195]
STANDARD METHODSTesting methods and techniques prescribed in 40 CFR Part 136 or, if not found therein, other appropriate procedures approved by the EPA.
STORM DRAIN or STORM SEWERA sewer which carries storm- and surface waters and drainage but excludes domestic sewage and industrial wastes, other than unpolluted cooling water.
STORMWATERAny flow occurring during or following any form of natural precipitation and resulting from such precipitation, including snowmelt.
SUSPENDED SOLIDSSolids or other matter that either floats on the surface of or is in suspension in water, wastewater or other liquids and which is removable by laboratory filtering.
TOTAL TOXIC ORGANICSThe summation of all quantifiable values greater than 0.01 mg/l for the toxic organics listed at 40 CFR 413.02(i).
TOXIC POLLUTANTOne of 126 pollutants or a combination of those pollutants listed as toxic in regulations promulgated by the EPA pursuant to Section 307 (33 U.S.C. § 1317) of the Act. This term also includes any pollutants that may be added to this promulgated list by amendment.
UPSETAn exceptional incident in which a discharger is in a state of noncompliance with the categorical pretreatment standards due to factors beyond the reasonable control of the discharger. This term excludes noncompliance due to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, careless or improper operation of the treatment facilities or other similar reason.
WASTEWATERLiquid and water-carried industrial wastes and domestic sewage from residential dwellings, commercial buildings, industrial and manufacturing facilities and institutions, whether treated or untreated, which are contributed to the POTW.
WASTEWATER PLANTAny facility owned by the City and used for receiving and treating wastewater.
WATERCOURSEA channel in which a flow of water occurs, either continuously or intermittently.