A. 
Part 4 of this chapter sets forth uniform requirements for users of the publicly owned treatment works for the City of Aberdeen and enables the City of Aberdeen to comply with all applicable state and federal laws, including the Clean Water Act (33 U.S.C. § 1251 et seq.) and the General Pretreatment Regulations (40 CFR 403). The objectives of this Part 4 are:
(1) 
To prevent the introduction of pollutants into the publicly owned treatment works that will interfere with its operation.
(2) 
To prevent the introduction of pollutants into the publicly owned treatment works that will pass through the publicly owned treatment works inadequately treated, into receiving waters, or otherwise be incompatible with the publicly owned treatment works.
(3) 
To protect both publicly owned treatment works personnel who may be affected by wastewater and sludge in the course of their employment and the general public.
(4) 
To promote reuse and recycling of industrial wastewater and sludge from the publicly owned treatment works.
(5) 
To provide for fees for the equitable distribution of the cost of operation, maintenance and improvement of the publicly owned treatment works.
(6) 
To enable the City of Aberdeen to comply with its National Pollutant Discharge Elimination System permit conditions, sludge use and disposal requirements, and any other federal or state laws to which the publicly owned treatment works is subject.
B. 
This Part 4 shall apply to all users of the publicly owned treatment works. This Part 4 authorizes the issuance of wastewater discharge permits; provides for monitoring, compliance and enforcement activities; establishes administrative review procedures; requires user reporting; and provides for the setting of fees for the equitable distribution of costs resulting from the program established herein.
Except as otherwise provided herein, the Director shall administer, implement, and enforce the provisions of this Part 4. Any powers granted to or duties imposed upon the Director may be delegated by the Director to other City personnel.
The following abbreviations, when used in this Part 4, shall have the designated meanings:
BOD
Biochemical oxygen demand
CFR
Code of Federal Regulations
COD
Chemical oxygen demand
EPA
United States Environmental Protection Agency
gpd
Gallons per day
mg/l
Milligrams per liter
NPDES
National Pollutant Discharge Elimination System
POTW
Publicly owned treatment works
RCRA
Resource Conservation and Recovery Act
SIC
Standard industrial classification
TSS
Total suspended solids
U.S.C.
United States Code
Unless a provision explicitly states otherwise, the following terms and phrases, as used in this Part 4, 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 U.S.C. § 1251 et seq.
APPROVAL AUTHORITY
The State of Maryland.
AUTHORIZED REPRESENTATIVE OF THE USER
A. 
If the user is a corporation:
(1) 
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 policy or decisionmaking functions for the corporation; or
(2) 
The manager of one or more manufacturing, production, or operation facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25,000 (in second-quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.
B. 
If the user is a partnership or sole proprietorship: a general partner or proprietor, respectively.
C. 
If the user is a federal, state or local governmental facility: a director or highest official appointed or designated to oversee the operation and performance of the activities of the government facility, or his/her designee.
D. 
The individuals described in Subsections 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 of Aberdeen.
BIOCHEMICAL OXYGEN DEMAND or BOD
The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedures for five days at 20° C., usually expressed as a concentration in mg/1.
BUILDING DRAIN
That part of the lowest piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer.
BUILDING SEWER (also called "house connection")
The extension from the building drain to the public sewer or other place of disposal. The building sewer begins five feet outside the inner face of the building wall.
CATEGORICAL PRETREATMENT STANDARD or CATEGORICAL STANDARD
Any 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) which apply to a specific category of users and which appear in 40 CFR Chapter I, Subchapter N, Parts 405 to 471.
CITY
The City of Aberdeen.
COMBINED SEWER
A sewer intended to receive both wastewater and storm runoff or surface water.
DIRECTOR
The Director of Public Works of Aberdeen or his duly authorized representative; the person designated by the City to supervise the operation of the POTW and who is charged with certain duties and responsibilities by this Part 4, or a duly authorized representative.
EASEMENT
An acquired legal right for the specific use of land owned by others.
ENGINEER
A registered professional engineer licensed to practice in the State of Maryland.
ENVIRONMENTAL PROTECTION AGENCY or EPA
The United States Environmental Protection Agency or, where appropriate, the Regional Water Management Division Director or other duly authorized official of said agency.
EXISTING SOURCE
Any 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.
FREE-FLOATING OIL
Any oil which can be separated from water by gravity.
GARBAGE
The animal and vegetable waste resulting from the handling, preparation, cooking and serving of foods.
GRAB SAMPLE
A sample which is taken from a waste stream without regard to the flow in the waste stream and over a period of time not to exceed 15 minutes.
HEXANE-SOLUBLE MATERIALS
Fats, greases or oils extractable from wastes in accordance with methods outlined in Standard Methods.
INDIRECT DISCHARGE or DISCHARGE
The introduction of pollutants into the POTW from any nondomestic source regulated under Section 307(b), (c) or (d) of the Act.
INSTANTANEOUS MAXIMUM ALLOWABLE DISCHARGE 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
A discharge which, alone or in conjunction with a discharge or discharges from other sources, inhibits or disrupts the POTW, its treatment processes or operations or its sludge processes, use or disposal and therefore is a cause of a violation of the City's NPDES permit or of the prevention of sewage sludge use or disposal in compliance with any of the following statutory/regulatory provisions or permits issued thereunder or any more stringent state or local regulations: Section 405 of the Act; the Solid Waste Disposal Act, including Title II, commonly referred to as the "Resource Conservation and Recovery Act (RCRA)"; any state regulations contained in any state sludge management plan prepared pursuant to Subtitle D of the Solid Waste Disposal Act; 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.
NATURAL OUTLET
Any outlet, including storm drains and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
NEW SOURCE
A. 
Any building, structure, facility or installation from which there is 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.
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 Subsection 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 section has commenced if the owner or operator has:
(1) 
Begun, or caused to begin, as part of a continuous on-site 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 is intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss and contracts for feasibility, engineering and design studies do not constitute a contractual obligation under this subsection.
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.
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, are 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 individual, partnership, copartnership, 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 governmental entities.
pH
A measure of the acidity or alkalinity of a solution, expressed in standard 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).
PRETREATMENT
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 imposed on a user, other than a pretreatment standard.
PRETREATMENT STANDARDS or STANDARDS
Prohibited discharge standards, categorical pretreatment standards, and local limits.
PROHIBITED DISCHARGE STANDARDS or PROHIBITED DISCHARGES
Absolute prohibitions against the discharge of certain substances; these prohibitions appear in § 450-43 of this Part 4.
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 1/2 inch in any dimension.
PUBLICLY OWNED TREATMENT WORKS or POTW
A treatment works, as defined by Section 212 of the Act (33 U.S.C. § 1292), which is owned by the City of Aberdeen. 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.
PUBLIC SEWER
A common sewer controlled by a governmental agency or public utility.
SANITARY SEWER
A sewer that carries wastewater from residences, commercial buildings, industrial plants or institutions.
SANITARY WASTES
All wastewater discharged from residences and wastewater discharged from the domestic plumbing facilities of commercial and industrial places of business.
SEPTIC TANK WASTE
Any sewage from holding tanks such as vessels, chemical toilets, campers, trailers and septic tanks.
SEWAGE
Human excrement and gray water (household showers, dishwashing operations, etc.).
SEWER
A pipe or conduit that carries wastewater or drainage water.
SIGNIFICANT INDUSTRIAL USER
A. 
A user subject to categorical pretreatment standards; or
B. 
A 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 waste stream 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 of Aberdeen 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. 
Upon a finding that a user meeting the criteria in Subsection B has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, the City of Aberdeen 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.
SLUG LOAD or SLUG
Any discharge at a flow rate or concentration which could cause a violation of the prohibited discharge standards in § 450-43 of this Part 4.
STANDARD INDUSTRIAL CLASSIFICATION (SIC) CODE
A classification pursuant to the Standard Industrial Classification Manual issued by the United States Office of Management and Budget.
STORM DRAIN or STORM SEWER
A drain or sewer for conveying surface water, groundwater, subsurface water or unpolluted water from any source.
STORMWATER
Any flow occurring during or following any form of natural precipitation and resulting from such precipitation, including snowmelt.
SUSPENDED SOLIDS
The total suspended matter that floats on the surface of or is suspended in water, wastewater or other liquid and which is removable by laboratory filtering.
USER or INDUSTRIAL USER
A source of indirect discharge.
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 TREATMENT PLANT or TREATMENT PLANT
That portion of the POTW which is designed to provide treatment of municipal sewage and industrial waste.