Unless a provision explicitly states 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 U.S.C. § 1251 et seq.
APPROVAL AUTHORITY
The Executive Director or Director of the Virginia State Water Control
Board in the area served by the POTW.
ASTM
The American Society for Testing and Materials.
AUTHORIZED REPRESENTATIVES OF THE INDUSTRIAL USER
(1)
If the industrial user is a corporation, authorized representative shall
mean:
(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 policy or decision-making functions for the corporation.
(b)
The manager of one or more manufacturing, production or operation facilities
employing more than 250 persons or having gross annual sales or expenditures
exceeding $25,000,000 (in second-quarter 1980 dollars), if authority to sign
documents has been assigned or delegated to the manager in accordance with
corporate procedures.
(2)
If the industrial user is a partnership or sole proprietorship, an authorized
representative shall mean a general partner or proprietor, respectively.
(3)
If the industrial user is a federal, state or local governmental 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 his/her designee.
(4)
The individuals described in Subsections
(1) through
(3) 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 PSA.
BIOCHEMICAL OXYGEN DEMAND (BOD)
The quantity of oxygen utilized in the biochemical oxidation of organic
matter under standard laboratory procedure, five days at 20° C., expressed
in terms of mass and concentration [milligrams per liter (mg/l)].
BUILDING SEWER
The extension from a building wastewater plumbing facility to the
treatment works.
CATEGORICAL PRETREATMENT STANDARD OR CATEGORICAL STANDARD
Any regulation containing pollutant discharge limits promulgated
by the United States Environmental Protection Agency (EPA) in accordance with
§ 307(b) and (c) of the Act (33 U.S.C. § 1317) which apply
to a specific category of industrial users and which appear in Title 4 of
the Code of Federal Regulations, Chapter I, Subchapter N, Parts 405 through
471.
COLOR
The optical density at the visual wave length of maximum absorption,
relative to distilled water. One hundred percent transmittance is equivalent
to zero optical density.
COMBINED SEWER
Any sewer intended to receive both wastewater and stormwater or surface
water.
COMPOSITE SAMPLE
The sample resulting from the combination of individual wastewater
samples taken at selected intervals based on an increment of either flow or
time.
CONTROL AUTHORITY
The Executive Director or Director of the Virginia State Water Control
Board in the area served by the POTW.
DAY
The twenty-four-hour period beginning at 12:01 a.m.
DISCHARGER
Person or persons, firm, company, industry or other similar sources
of wastewater who introduce such into the POTW.
EASEMENT
An acquired legal right for the specific use of land owned by others.
ENVIRONMENTAL PROTECTION AGENCY OR EPA
The United States Environmental Protection Agency, or, where appropriate,
the term may also be used as a designation for the Regional Water Management
Division Director or other duly authorized official of said agency.
ESTABLISHMENT
Any industrial establishment, mill, factory, tannery, paper or pulp
mill, mine, coal mine, colliery, breaker or coal processing operations, quarry,
oil, refinery, boat, vessel and each and every other industry or plant or
works, the operation of which produces industrial wastes or other wastes or
which may otherwise alter the physical, chemical or biological properties
of any state waters.
EXECUTIVE DIRECTOR
The person designated by the PSA to supervise the operation of the
POTW and who is charged with certain duties and responsibilities by this chapter
or his duly authorized representative.
EXISTING SOURCE
Any source of discharge, the construction or operation of which commenced
prior to the publication of proposed categorical pretreatment standards which
will be applicable to such source if the standard is thereafter promulgated
in accordance with § 307 of the Act.
GARBAGE
The solid animal and vegetable wastes resulting from the domestic
or commercial handling, storage, dispensing, preparation, cooking and serving
of foods.
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 without consideration of time.
GROUNDWATER
Any water beneath the land surface in the zone of saturation.
INDIRECT DISCHARGE OR DISCHARGE
The introduction of (nondomestic) pollutants into the POTW from any
nondomestic source regulated under § 307(b), (c) or (d) of the Act.
INDUSTRIAL WASTES
Liquid or other wastes resulting from any process of industry, manufacture,
trade or business or from the development of any natural resources.
INSTANTANEOUS MAXIMUM ALLOWABLE DISCHARGE LIMIT
The maximum concentration (or loading) of a pollutant allowed to
be discharged at any time, determined from the analysis of any discrete or
composite 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:
(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 the PSA's NPDES and/or VPDES
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 more stringent state or local regulations): § 405
of the Clean Water Act; the Solid Waste Disposal Act (SWDA), 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 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 by-products,
pathological wastes, sharps, body parts, fomites, etiologic agents, contaminated
bedding, surgical wastes, potentially contaminated laboratory wastes and dialysis
wastes.
MUNICIPALITY
A city, county, town, district association, authority or other public
body created under the law and having jurisdiction over disposal sewage, industrial
or other wastes.
NATURAL OUTLET
Any outlet into a watercourse, pond, ditch, lake or any other body
or surface 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 § 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:
(a)
The building, structure, facility or installation is constructed at
a site at which no other source is located.
(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 is substantially independent of an existing source
at the same site. In determining whether there 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) above but otherwise alters, replaces or adds to existing process or production equipment.
(3)
Construction of a new source as defined under this definition 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 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.
OWNER
The Commonwealth of Virginia or any of its political subdivisions,
including but not limited to sanitation district commissions and authorities,
sanitary boards and public or private institutions, corporations, associations,
firms or companies organized or existing under the laws of this or any other
state or country or any person or group of persons acting individually or
as a group.
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 PSA's VPDES 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 or local governmental entities.
PH
A measure of the acidity or alkalinity of a substance, expressed
in standard units.
POLLUTANT
Any dredged spoil, solid waste, incinerator residue, sewage, garbage,
sewage sludge, munitions, medical wastes, chemical wastes, industrial wastes,
biological materials, radioactive materials, heat, wrecked or discharged equipment,
rock, sand, cellar dirt, agricultural and industrial wastes and the characteristics
of the wastewater [i.e., pH, temperature, total suspended solids (TSS), turbidity,
color, BOD, chemical oxygen demand (COD), toxicity and 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 an industrial user, other than a pretreatment standard.
PROPERLY SHREDDED GARBAGE
Garbage that has been shredded to such a degree that all particles
will be carried freely under flow conditions normally prevailing in the treatment
works, with no particle greater than 1/2 inch in any dimension.
PUBLICLY OWNED TREATMENT WORKS OR POTW
A treatment works, as defined by § 212 of the Act (33 U.S.C.
§ 1292), which is owned by the commonwealth or municipality. This
definition includes any devices or systems used in the collection, storage,
treatment, recycling and reclamation of sewage or industrial wastes and any
conveyances which convey wastewater to a treatment plant. The term also means
the municipal entity having jurisdiction over the industrial users and responsibility
for the operation and maintenance of the treatment works.
SANITARY WASTEWATER
Wastewater discharged from the sanitary conveniences of dwellings,
office buildings, industrial plants or institutions.
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.).
SIGNIFICANT INDUSTRIAL USER
(1)
Industrial users subject to categorical pretreatment standards; and
(2)
Any other industrial user that:
(a)
Discharges an average of 25,000 gallons per day or more of process wastewater;
(b)
Contributes a process waste stream which makes up 5% or more of the
average dry-weather hydraulic or organic capacity of the treatment plant;
or
(c)
Is designated as significant by the PSA 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.
SLUG LOAD
Any discharge at a flow rate or concentration which could cause a violation of the prohibited discharge standards in §
73-12 of this chapter or any discharge of a nonroutine, episodic nature, including but not limited to an accidental spill or a noncustomary batch discharge.
STANDARD METHODS
The latest edition of Standard Methods for the Examination of Water
and Wastewater, published by the American Public Health Association, the Water
Pollution Control Federation and the American Water Works Association.
STATE
The Commonwealth of Virginia.
STORM SEWER
A sewer for conveying storm-, surface and other waters, which are
not intended to be transported to a treatment works.
STORMWATER
Any flow occurring during or following any form of natural precipitation
and resulting therefrom, including snowmelt.
SURFACE WATER
(1)
All waters which are currently used, were used in the past or may be
susceptible to use in interstate or foreign commerce.
(2)
All interstate waters, including interstate wetlands.
(3)
All other waters, such as inter/intrastate lakes, rivers, streams (including
intermittent streams), mudflats, sandflats, wetlands, sloughs, wet meadow
or natural ponds, the use, degradation or destruction of which would affect
or could affect interstate or foreign commerce, including any such waters:
(a)
Which are or could be used by interstate or foreign travelers for recreational
or other purposes;
(b)
From which fish or shellfish are or could be taken and sold in interstate
or foreign commerce; or
(c)
Which are used or could be used for industrial purposes by industries
in interstate commerce.
(4)
All impoundments of waters otherwise defined as surface waters under
this definition.
(5)
Tributaries of water identified in Subsections
(1) through
(4) of this definition.
(6)
Wetlands adjacent to waters, other than waters that are themselves wetlands, identified in Subsection
(1) through
(5) of this definition.
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.
TOXIC POLLUTANT
One of 126 pollutants or a combination of those pollutants listed
as toxic in regulations promulgated by the EPA under the provision of § 307
of the Act (33 U.S.C. § 1317).
TREATMENT FACILITY
Only those mechanical-power-driven devices necessary for the transmission
and treatment of pollutants (e.g., pump stations and unit treatment processes).
TREATMENT PLANT
That portion of the POTW designed to provide treatment of sewage
and industrial waste.
TREATMENT WORKS
Any devices and systems used for the storage, treatment, recycling
and/or reclamation of sewage or liquid industrial waste or other waste necessary
to recycle or reuse water, including intercepting sewers, outfall sewers,
sewage collection systems, individual systems, pumping, power and other equipment
and their appurtenances, extensions, improvements, remodeling, additions or
alterations; and any works, including land that will be an integral part of
the treatment process or is used for ultimate disposal of residues resulting
from such treatment or any other method or system used for preventing, abating,
reducing, storing, treating, separating or disposing of municipal waste or
industrial waste, including waste in combined sewer, water and sanitary sewer
systems.
VPDES
Virginia Pollutant Discharge Elimination System permit program, as
administered by the Commonwealth of Virginia.
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.