The following words and phrases, when used in this article,
shall, for the purpose of this article, have the meanings respectively
ascribed to them in this definitions section, except when the context
otherwise requires. Whenever any words and phrases used herein are
not defined herein but are defined in the federal and state laws regulating
illicit discharge, any such definition therein shall be deemed to
apply to such words and phrases used herein, except when the context
otherwise requires.
Accidental discharge.
An act or omission through which waste or other substances
are inadvertently discharged into water in the state or a MS4.
Best Management Practices (BMP).
Schedule of activities, prohibitions of practices, maintenance
procedures, structural controls, local ordinances, and other management
practices to prevent or reduce the discharge of pollutants. BMPs also
include treatment practices, operating procedures, and practices to
control runoff, spills or leaks, waste disposal, or drainage from
raw materials storage areas.
Business day.
Any day of the week, excluding Saturdays, Sundays, and legal
holidays.
Calendar day.
When the term "day" is used herein, unless specifically defined
otherwise, the term shall mean any day of the week, including Saturdays,
Sundays, and legal holidays, with no days being excepted.
City staff.
Employees of the city, authorized to act on the city's
behalf by the city manager.
Clean Water Act (CWA).
Formerly referred to as the Federal Water Pollution Control
Act (33 USC § 1251 et seq.), and any subsequent amendments
thereto.
Common plan of development.
Construction activity that is completed in separate stages,
separate phases, or in combination with other construction activities.
A common plan of development (also known as a "common plan of development
or sale") is identified by the documentation for the construction
project that identifies the scope of the project, and may include
plats, blueprints, marketing plans, contracts, building permits, a
public notice or hearing, zoning requests, or other similar documentation
and activities. A common plan of development does not necessarily
include all construction projects within the jurisdiction of the city.
Construction of roads or buildings in different parts of the city
would be considered separate "common plans," with only the interconnected
parts of a project being considered part of a "common plan" (e.g.,
a building and its associated parking lot and driveways, building
complex, etc.). Where discrete construction projects occur within
a larger common plan of development or sale but are located one-quarter
mile or more apart, and the area between the projects is not being
disturbed, each individual project can be treated as a separate plan
of development or sale, provided that any interconnecting road, pipeline
or utility project that is part of the same "common plan" is not included
in the area to be disturbed.
Construction activity.
The disturbance of soils associated with clearing, grading,
grubbing, demolition or excavating activities or other construction
related activities. This does not include routine maintenance that
is performed to maintain the original line and grade, hydraulic capacity,
or original purpose of the site (e.g., the routine grading of existing
dirt roads, asphalt overlays of existing roads, the routine clearing
of existing rights-of-way, and similar maintenance activities).
Conveyance.
Any of the following, by way of illustration and not limitation:
stream, channel, drainageway, drainage/dry well, ephemeral stream,
floodplain, karst feature, storm drainage system, drainage system
appurtenance, water body, watercourse or waterway.
Director.
The city employee fulfilling the duties of and holding the
title of director of public works, or similar subsequent title designation,
or their designee.
Discharge.
Any addition or introduction of any pollutant, stormwater,
or any other substance whatsoever into the municipal separate storm
sewer system (MS4) or conveyances.
Discharger.
Any person who causes, allows, permits, or is otherwise responsible
for a discharge, including, without limitation, any operator of a
construction site or industrial facility.
Environmental Protection Agency (EPA).
The United States Environmental Protection Agency, the regional
office thereof, any federal department, agency, or commission that
may succeed to the authority of the EPA, and any duly authorized official
of the EPA or such successor agency.
Erosion and Sediment Control (ESC) plan.
A site plan, construction plan, or grading plan set that
contains a description and location of all temporary erosion and sediment
controls that will be implemented to minimize the discharge of pollutants
into the city's MS4 and surface water of the state during construction.
Extraterritorial jurisdiction (ETJ).
The unincorporated area that is contiguous to the corporate
boundaries of the municipality based. The extent of the ETJ is based
on the number of municipal habitants per the Texas Local Government
Code chapter 42, subchapter B.
Facility.
Any building, structure, installation, or activity from which
there is or may be a discharge of a pollutant.
Fertilizer material.
A solid or nonsolid substance or compound that contains an
essential plant nutrient element in a form available to plants and
is used primarily for its essential plant nutrient element content
in promoting or stimulating growth of a plant or improving the quality
of a crop or for compounding a mixed fertilizer as these terms are
defined in section 63.001 of the Texas Agriculture Code).
Final stabilization.
The status when all soil disturbing activities at a site
have been completed, and a uniform perennial vegetative cover with
a density of 70% of the cover for unpaved areas and areas not covered
by permanent structures have been established, or equivalent permanent
stabilization measures (such as the use of riprap, gabions, or geotextiles)
have been employed.
Fire department.
The Williamson County Emergency Services District, and any
other fire departments with which the city has mutual assistance or
mutual aid agreements.
Fire protection water.
Any water, and any substances or materials contained therein,
used by any person other than the fire department to control or extinguish
a fire.
Floatables.
Anything lighter than water that can float on top of water.
Garbage.
Putrescible animal and vegetable waste materials from the
handling, preparation, cooking, or consumption of food, including
waste materials from markets, storage facilities, and the handling
and sale of produce and other food products.
Graywater.
Wastewater from showers, bathtubs, handwashing lavatories,
sinks that are used for disposal of household or domestic products,
sinks that are not used for food preparation or disposal, and clothes-washing
machines. Graywater does not include wastewater from the washing of
material, including diapers, soiled with human excreta or wastewater
that has come into contact with toilet waste.
Groundwater.
Any water that is located beneath the surface of the ground
and is not under the direct influence of surface water.
Harmful quantity.
The amount of any substance due to volume or concentration
that will cause pollution.
Hazardous material.
Any material (including any substance, waste, or combination
thereof) which, because of its quantity, concentration, or physical,
chemical, or infectious characteristics, may cause or significantly
contribute to a substantial present or potential hazard to human health,
safety, property, or the environment when improperly treated, stored,
transported, disposed of, or otherwise managed. This term shall include
household hazardous wastes as classified under 40 CFR part 261, hazardous
substances as listed in table 302.4 of 40 CFR part 302, and hazardous
wastes identified or listed by the EPA pursuant to 40 CFR part 261.
Hazardous waste.
Any liquid, semi-liquid or solid waste (or combination of
wastes), which because of its quantity, concentration, physical, chemical
or infectious characteristics may:
(1)
Have any of the following characteristics: Toxic, corrosive,
an irritant, a strong sensitizer, flammable or combustible, explosive,
or otherwise capable of causing substantial personal injury or illness.
(2)
Pose a substantial hazard to human health or the environment
when improperly treated, stored, transported, or disposed of, or otherwise
improperly managed, and is identified or listed as a hazardous waste
as defined by the Texas Solid Waste Disposal Act or defined under
40 CFR part 261.3.
Herbicide.
A substance or mixture of substances used to destroy a plant
or to inhibit plant growth.
Household hazardous waste.
Any solid waste generated in a household by a consumer including,
but not limited to, products, such as paints, cleaners, oils, batteries,
and pesticides that contain potentially hazardous ingredients that
require special care upon disposal.
Hyperchlorinated water.
Water resulting from hyperchlorination of waterlines or vessels,
with a chlorine concentration greater than 10 milligrams per liter
(mg/L).
Hyperchlorination of waterlines or vessels.
Treatment of potable water lines or tanks with chlorine for
disinfection purposes, typically following repair or partial replacement
of the waterline or tank, and subsequently flushing the contents.
Illicit connection.
Any connection to the MS4 or conveyances that allows for
an illicit discharge.
Illicit discharge.
Any direct or indirect discharge of pollutant to the MS4 or conveyances, except as specifically exempted in this article
24.08.
Industrial activity.
Any activity at an industrial facility described by the TPDES
Multi Sector General Permit, TXR050000, or by any other TCEQ or TPDES
permit, including any of the following, by way of illustration and
not of limitation: manufacturing, processing, materials storage, and
waste materials disposal.
Industrial waste.
Any waterborne liquid or solid substance that results from
any process of industry, manufacturing, mining, production, trade
or business.
Maximum Extent Practicable (MEP).
The technology-based discharge standard for municipal separate
storm sewer systems (MS4s) to reduce pollutants in stormwater discharges
that was established by the CWA § 402(p). A discussion of
MEP as it applies to small MS4s is found in 40 CFR § 122.34.
Motor vehicle fluids.
Any vehicle crankcase oil, antifreeze, transmission fluid,
brake fluid, differential lubricant, gasoline, diesel fuel, gasoline/alcohol
blend, and any other fluid used in a motor vehicle.
Municipal separate storm sewer system (MS4).
The storm drainage system operated and maintained by the
city which is comprised of the following: the system of conveyances
(including roads with drainage systems, municipal streets, catch basins,
curbs, gutters, ditches, manmade channels, or storm drains) owned
and operated by the city and designed or used for collecting or conveying
stormwater, and which is not used for collecting or conveying sewage.
National Pollutant Discharge Elmination System (NPDES).
The national program for issuing, modifying, revoking and
reissuing, terminating, monitoring and enforcing permits, and imposing
and enforcing pretreatment requirements, under sections 307, 402,
318, and 405 of the Clean Water Act.
Notice of Intent (NOI).
The notice of intent that is required by either the industrial
general permit or the construction general permit.
Oil.
Any kind of oil in any form, including but not limited to
petroleum, fuel oil, crude oil, or any fraction thereof which is liquid
at standard conditions of temperature and pressure, sludge, oil refuse,
and oil mixed with waste. This term shall include used oil that has
become unsuitable for its original purpose because of impurities or
the loss of original properties but that may be suitable for further
use and is recyclable in compliance with state and federal law.
Operator.
The person or persons who, either individually or taken together,
meet the following two criteria:
(1)
Has operational control over the facility specifications (including
the ability to make modifications in specifications); and
(2)
Has the day-to-day operational control over those activities
at the facility necessary to ensure compliance with pollution prevention
requirements and any permit conditions.
Outfall.
A point source at the point where stormwater runoff associated
with construction or industrial activity, and certain nonstormwater
discharges listed in this permit, exits the facility and discharge(s)
to surface water in the state or a municipal or private separate storm
sewer system. An outfall from a diffuse point source includes the
point or points where the diffuse point source discharges to surface
water in the state or a municipal or private separate storm sewer
system.
Owner.
The person who owns a facility or part of a facility.
Person.
Any individual, partnership, co-partnership, firm, company,
corporation, association, joint stock company, trust, estate, governmental
entity, or any other legal entity, or their legal representatives,
agents, lessees, or assigns. This term shall also include all federal,
state, and local governmental entities.
Pesticide.
A substance or mixture of substances intended to prevent,
destroy, repel, or mitigate any pest, or any substance or mixture
of substances intended for use as a plant regulator, defoliant, or
desiccant (as these terms are defined in section 76.001 of the Texas
Agriculture Code).
Petroleum Storage Tank (PST).
Any one or a combination of aboveground or underground storage
tanks or connecting underground pipes that contain petroleum products
that are obtained from distilling and processing crude oil and that
are capable of being used as a fuel.
Point source.
Any discernible, confined, and discrete conveyance, including
but not limited to, any pipe, ditch, channel, tunnel, conduit, well,
discrete fissure, container, rolling stock concentrated animal feeding
operation, landfill leachate collection system, vessel or other floating
craft from which pollutants are, or may be, discharged. This term
does not include return flows from irrigated agriculture or agricultural
stormwater runoff (40 CFR § 122.2).
Pollutant.
A substance, the entrance of which causes or contributes
to a violation of applicable water quality standards as defined by
the Clean Water Act. This term includes, but is not limited to, paints,
varnishes, solvents, oil and other automotive fluids, yard wastes,
trash, sediments, household chemicals, detergents, pesticides, herbicides,
fertilizers, hazardous materials, sewage, animal wastes, dredged spoil,
solid waste, incinerator residue, garbage, sewage sludge, munitions,
chemical waste, biological materials, radioactive materials, wrecked
or discarded equipment, rock, sand, cellar dirt, and industrial, municipal,
and agricultural waste discharged into water, and other materials
exposed to stormwater as a result of construction activity.
Pollution.
The alteration of the physical, thermal, chemical, or biological
quality of, or the contamination of, any water in the state that renders
the water harmful, detrimental, or injurious to humans, animal life,
vegetation, or property, or to the public health, safety, or welfare,
or impairs the usefulness or the public enjoyment of the water for
any lawful or reasonable purpose.
Release.
Any spilling, leaking, pumping, pouring, emitting, emptying,
discharging, injecting, escaping, leaching, dumping, or disposing
into the municipal separate storm sewer system (MS4) or conveyances.
Sanitary sewer (or sewer).
The system of pipes, conduits, and other conveyances which
carry industrial waste and domestic sewage from residential dwellings,
commercial buildings, industrial and manufacturing facilities, and
institutions, whether treated or untreated, to the city sewage treatment
plant (and to which stormwater, surface water, and groundwater are
not intentionally admitted).
Service station.
Any retail establishment engaged in the business of selling
fuel for motor vehicles that is dispensed from stationary storage
tanks.
Site.
The land or water area where any facility or activity is
physically located or conducted, including adjacent land used in connection
with the facility or activity.
Solid waste.
Any garbage, trash, refuse, sludge from a waste treatment
plant, water supply treatment plant, or air pollution control facility,
and other discarded material, including solid, liquid, semi-solid,
or contained gaseous material resulting from industrial, municipal,
commercial, mining, and agricultural operations, and from community
and institutional activities.
Stormwater.
Any surface flow, stormwater runoff, snow melt runoff, and
surface runoff and drainage consisting entirely of water from any
form of natural precipitation.
Stormwater pollution prevention plan (SWP3).
A plan required by either the construction general permit
or the industrial general permit and which describes and ensures the
implementation of practices that are to be used to reduce the pollutants
in stormwater discharges associated with construction or other industrial
activity at the facility.
Structural control (or practice).
A pollution prevention practice that requires the construction
of a device, or the use of a device, to capture or prevent pollution
in stormwater runoff. Structural controls and practices may include
but are not limited to: wet ponds, bioretention, infiltration basins,
stormwater wetlands, silt fences, earthen dikes, drainage swales,
vegetative lined ditches, vegetative filter strips, sediment traps,
check dams, subsurface drains, storm drain inlet protection, rock
outlet protection, reinforced soil retaining systems, gabions, and
temporary or permanent sediment basins.
Surface water in the state.
Lakes, bays, ponds, impounding reservoirs, springs, rivers,
streams, creeks, estuaries, wetlands, marshes, inlets, canals, the
Gulf of Mexico inside the territorial limits of the state (from the
mean high water mark (MHWM) out 10.36 miles into the Gulf), and all
other bodies of surface water, natural or artificial, inland or coastal,
fresh or salt, navigable or nonnavigable, and including the beds and
banks of all water-courses and bodies of surface water, that are wholly
or partially inside or bordering the state or subject to the jurisdiction
of the state; except that waters in treatment systems which are authorized
by state or federal law, regulation, or permit, and which are created
for the purpose of waste treatment are not considered to be water
in the state.
TCEQ.
The Texas Commission on Environmental Quality, or any duly
authorized official of said agency.
Trash.
Nonputrescible solid waste, excluding ashes, that consists
of:
(1)
Combustible waste materials, including paper, rags, cartons,
wood, excelsior, furniture, rubber, plastics, yard trimmings, leaves,
and similar materials; and
(2)
Noncombustible waste materials, including glass, crockery, tin
cans, aluminum cans, metal objects, and similar materials that do
not burn at ordinary incinerator temperatures (1600 to 1800 degrees
Fahrenheit).
Violator.
Any individual, association, homeowners' association, organization, partnership, co-partnership, firm, company, corporation, trust, estate, operator, governmental entity, or any other legal entity, or their legal representatives, agents, lessees, or assigns who knowingly or unknowingly comments an offense of this article
24.08. This term shall also include all federal, state, and local governmental entities.
Wash-water.
Any water containing pollutants from the act of cleaning
parking lots, vehicles, or building exteriors.
Wastewater.
All liquids and waterborne waste, drainage water, and sewage,
whether treated or untreated, from residential dwellings, commercial
buildings, or industrial or manufacturing facilities and institutions.
Water quality standard.
The designation of a body or segment of surface water in
the state for desirable uses and the narrative and numerical criteria
deemed by the state to be necessary to protect those uses, as specified
in chapter 307 of title 31 of the Texas Administrative Code.
Wetland.
An area that is inundated or saturated by surface [water]
or groundwater at a frequency and duration sufficient to support,
and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.
Wetlands generally include swamps, marshes, bogs, and similar areas.
Yard waste.
Leaves, grass clippings, yard and garden debris, and brush
that results from landscaping maintenance and land-clearing operations.
(Ordinance O-2024-026 adopted 5/2/2024)
This article is not intended to modify or repeal any other ordinance,
rule, regulation, or other provision of law. The requirements of this
article are in addition to the requirements of any other ordinance,
rule, regulation, or other provision of law, and where any provision
of this article imposes restrictions different from those imposed
by any other ordinance, rule, regulation, or other provision of law,
whichever provision is more restrictive or imposes higher protective
standards for human health or the environment shall control.
(Ordinance O-2024-026 adopted 5/2/2024)
Every person owning property through which a watercourse passes,
or such person's lessee, shall keep and maintain that part of
the watercourse within the property free of trash, debris, excessive
vegetation, and other obstacles that would pollute, contaminate, or
significantly retard the flow of water through the watercourse. In
addition, the owner or lessee shall maintain existing privately owned
structures within or adjacent to a watercourse, so that such structures
will not become a hazard to the use, function, or physical integrity
of the watercourse.
(Ordinance O-2024-026 adopted 5/2/2024)
The city will require BMPs for any activity, operation, or premises
which may cause or contribute to pollution or contamination of stormwater,
the storm drain system, or waters of the United States. The owner
or operator of such activity, operation, or premises shall provide,
at their own expense, reasonable protection from accidental discharge
of prohibited materials or other wastes into the city's storm
drain system or watercourses through the use of these structural and
nonstructural BMPs. Further, any person responsible for a property
or premise that is, or may be, the source of an illicit discharge,
may be required to implement, at said person's expense, additional
structural and nonstructural BMPs to prevent the further discharge
of pollutants to the MS4. Compliance with all terms and conditions
of a valid NPDES/TPDES permit authorizing the discharge of stormwater
associated with industrial activity and/or construction activity,
to the extent practicable, shall be deemed compliance with the provisions
of this section. These BMPs shall be part of a SWP3 as necessary for
compliance with requirements of the NPDES/TPDES permit.
(Ordinance O-2024-026 adopted 5/2/2024)