As used in this chapter, unless the context specifically
indicates otherwise, the following terms shall have the meanings indicated:
ACT or THE ACT
The Federal Water Pollution Control Act, also known as the
Clean Water Act (33 U.S.C. § 1251 et seq., as amended).
APPROVAL AUTHORITY
The Director in an NPDES state with an approved state pretreatment
program and the Administrator of the EPA in a non-NPDES state or an
NPDES state without an approved state pretreatment program.
AUTHORIZED REPRESENTATIVE OF INDUSTRIAL USER
(1)
A responsible corporate officer, if the industrial
user is a corporation. For the purpose of this subsection, a responsible
corporate officer means:
(a)
A president, secretary, treasurer, or 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;
(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 procedure.
(2)
By a general partner or proprietor if the industrial
user submitting the reports is a partnership or sole proprietorship
respectively.
(3)
By a duly authorized representative of the individual
designated in Subsections (1)(a) or (1)(b) of this definition if:
(a)
The authorization is made in writing by the
individual described in Subsection (1)(a) or (1)(b);
(b)
The authorization specifies either an individual
or a position having responsibility for the overall operation of the
facility from which the industrial discharge originates, such as the
position of plant manager, operator or well field superintendent,
or a position of equivalent responsibility, or having overall responsibility
for environmental matters for the company; and
(c)
The written authorization is submitted to the
control authority.
(4)
If an authorization under Subsection (3) of
this section is no longer accurate because of a different individual
or position has responsibility for the overall operation of the facility,
or overall responsibility for environmental matters for the company,
a new authorization satisfying the requirements of Subsection (3)
of this section must be submitted to the control authority prior to
or together with any reports to be signed by an authorized representative.
BIOCHEMICAL OXYGEN DEMAND (BOD)
The quantity of oxygen utilized in the biochemical oxidation
of organic matter under standard laboratory procedure for five days
at 20° C., usually expressed as a concentration [milligrams per
liter (mg/l)].
BUILDING SEWER
A sewer conveying wastewater from the premises of a user
to the POTW.
BYPASS
The intentional diversion of waste streams from any portion
of an industrial user's treatment facility.
CITY
The City of Rockwood or City Council.
CONTROL AUTHORITY
The city-owned treatment work if it has an approved program,
or the approval authority until the publicly owned treatment works
program is approved.
COOLING WATER
The water discharged from any use, such as air conditioning,
cooling or refrigeration, or to which the only pollutant added is
heat.
DIRECT DISCHARGE
The discharge of treated or untreated wastewater directly
to the waters of the state.
ENVIRONMENTAL PROTECTION AGENCY or EPA
The United States Environmental Protection Agency. Where
appropriate, the term may also be used as a designation for the Administrator
or other duly authorized official of such Agency.
GRAB SAMPLE
A sample taken from a waste stream on a one-time basis over
a period of time of not more than 15 minutes without regard to the
flow in the waste stream.
HOLDING TANK WASTE
Any waste from holding tanks, such as vessels, chemical toilets,
campers, trailers, septic tanks and vacuum-pump tank trucks.
INDIRECT DISCHARGE
The discharge or the introduction of nondomestic pollutants
from any source regulated under Section 307(b) or (c) of the Act (33
U.S.C. § 1317) into the POTW (including holding tank waste
discharged into the system).
INDUSTRIAL USER
A source of indirect discharge which does not constitute
a discharge of pollutants under regulations issued pursuant to Section
402 of the Act (33 U.S.C. § 1342).
INTERFERENCE
The inhibition or disruption or the POTW treatment processes
or operations, which inhibition or disruption contributes to a violation
of any requirement of the city's NPDES permit. The term includes prevention
of sewage sludge use or disposal by the POTW in accordance with Section
405 of the Act (33 U.S.C. § 1345), or any criteria, guidelines
or regulations developed pursuant to the Solid Waste Disposal Act
(SWDA), the Clean Air Act, the Toxic Substances Control Act or more
stringent state criteria (including those contained in any state sludge
management plan prepared pursuant to Title IV of SWDA) applicable
to the method of disposal or use employed by the POTW.
MDEQ
The Michigan Department of Environmental Quality or its successor
department or Agency.
MNREPA
The Michigan Natural Resources and Environmental Protection
Act, MCLA 324.101 et seq., as amended.
NEW SOURCE
Any building, facility or structure, from which there is
or may be a discharge and for which the construction commenced after
the publication of proposed pretreatment standards under Section 307(c)
of the Clean Water Act or will be applicable to the source if the
standards are thereafter promulgated in accordance with Section 307(c)
and if any of the following provisions apply:
(1)
The building, structure, facility or installation
is constructed at a site at which no other source is located; or
(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.
PASS THROUGH
A discharge which exits the POTW into waters of the state
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 POTW's NPDES permit (including an increase
in the magnitude or duration of a violation).
PERSON
Any individual, partnership, co-partnership, firm, company,
corporation, association, joint-stock company, trust, estate, governmental
entity or other legal entity, or his, her or its legal representatives,
agents or assigns.
pH
The logarithm (base ten) of the reciprocal of the concentration
of hydrogen ions expressed in grams per liter of solution.
POLLUTANT
Any dredged spoil, solid waste, incinerator residue, sewage,
garbage, sewage sludge, munitions, chemical wastes, biological materials,
radioactive materials, heat, wrecked or discharged equipment, rock,
sand, cellar dirt and industrial, municipal and agricultural waste
discharged into water.
POLLUTION
Man-made or man-induced alteration of the chemical, physical,
biological and radiological integrity of water.
POTW
A publicly owned treatment works as defined below.
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 to a less harmful state prior to or in lieu of discharging
or otherwise introducing such pollutants into a POTW. The reduction
or alteration can be obtained by physical, chemical or biological
processes, or process changes by other means, except as prohibited
by 40 CFR, Section 403.6(d).
PRETREATMENT REQUIREMENTS
Any substantive or procedural requirement related to pretreatment,
other than a national pretreatment standard imposed on an industrial
user.
PUBLICLY OWNED TREATMENT WORKS (POTW)
A treatment works, as defined by Section 212 of the Act (33
U.S.C. § 1292), which is owned in this instance by the city.
This definition includes any sewers that convey wastewater to the
POTW treatment plant, but does not include pipes, sewers or other
conveyances not connected to a facility providing treatment. For the
purposes of this chapter, POTW also includes 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 city's POTW.
SIGNIFICANT INDUSTRIAL USER
Except as provided in Subsection (3) of this section, the
term significant industrial user means:
(1)
A user subject to a categorical pretreatment
standards under 40 CFR 403.6 and 40 CFR Chapter
1, Subchapter N; or
(2)
Any other industrial user that:
(a)
Discharges an average of 25,000 gallons per
day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown 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 treatment plant; or
(c)
Is designated as such by the City of Rockwood
as defined in 40 CFR 403.12(a) 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 in accordance
with 40 CFR 403.8(f)(6).
(3)
Upon a finding that a user meeting the criteria
in Subsection (2)(b) has no reasonable potential for adversely affecting
the POTW's operation or for violating any pretreatment standard or
requirement, the City of Rockwood 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 NONCOMPLIANCE
An industrial user is in significant noncompliance if its
violation meets one or more of the following criteria:
(1)
Chronic violations of any numerical limits placed
on wastewater discharge, defined here as those in which 66% or more
of all of the measurements taken during a six-month period exceed
(by any magnitude) the daily maximum numerical limit or the average
numerical limit 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 daily maximum numerical limit or the
average numerical limit multiplied by the applicable TRC (TRC = 1.4
for BOD, TSS, fats, oils and grease, and 1.2 for all other pollutants
except pH).
(3)
Any other violation of a numerical pretreatment
effluent limitation (daily maximum or longer-term average) that the
control authority determines has caused, alone or in combination with
other discharges, interference or pass-through (including endangering
the health of treatment plant personnel or the general public).
(4)
Any discharge of a pollutant has caused imminent
endangerment to human health, welfare, or to the environment or has
resulted in the treatment plant's exercise of its emergency authority
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, ninety-day
compliance reports, periodic self-monitoring reports, and reports
on compliance with compliance schedules.
(7)
Failure to accurately report noncompliance.
(8)
Any other violation or group of violations which
the control authority determines will adversely affect the operation
or implementation of the local pretreatment program.
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, 1972.
STORMWATER
Any flow occurring during or following any form of natural
precipitation and resulting therefrom.
SUSPENDED SOLIDS
The total suspended matter that floats on the surface of
or is suspended in water, wastewater or other liquids and which is
removable by laboratory filtering.
SUPERINTENDENT
The person designated by the City to supervise the operation
of the publicly owned treatment works and who is charged with certain
duties and responsibilities by this chapter, or his or her duly authorized
representative.
TOXIC POLLUTANT
Any pollutant or combination of pollutants listed as toxic
in regulations promulgated by the Administrator of the Environmental
Protection Agency under the provisions of Section 307(a) of the Act
or under any other act.
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 operation
error, improperly designed treatment facilities, inadequate treatment
facilities, lack of preventive maintenance, or careless or improper
operation.
USER
Any person who contributes, or causes or permits the contribution
of, wastewater into the city's POTW.
WASTEWATER
Liquid and water-carried industrial or domestic wastes from
dwellings, commercial buildings and industrial facilities and institutions,
together with groundwater, surface water or stormwater that may be
present, whether treated or untreated, which is contributed into or
permitted to enter the POTW.
WATERS OF THE STATE
All streams, lakes, ponds, marshes, watercourses, waterways,
wells, springs, reservoirs, aquifers, irrigation systems, drainage
systems and other bodies or 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.