This article applies to land-disturbing and land-developing
activities on land within the boundaries and jurisdiction of the Village
and the public and private lands subject to extraterritorial review
under Ch. 236, Wis. Stats.
The following definitions are applicable in this article:
AGRICULTURAL LAND ACTIVITY
Use of land for planting, growing, cultivating and harvesting
of crops for human or livestock consumption; pasturing or yarding
of livestock; growing and tending of gardens and trees; harvesting
of trees.
BUSINESS DAY
A day on which the Village offices are routinely and customarily
open for business.
CEASE AND DESIST ORDER
An order issued by the Building Inspector or by a court to
halt land-developing activity that is being conducted without the
required permit.
COMMON PLAN OF DEVELOPMENT ON SALE
All lands within the boundary of a certified survey or plat
created for the purpose of development or sale of property, where
multiple, separate and distinct land-developing activity may take
place at different times and on different schedules.
CONTROL PLAN
Plan containing the necessary calculations and design implementation
procedures to assure the requirements of this article will be met.
DESIGN STORM
A hypothetical discrete rainstorm characterized by a specific
duration, temporal distribution, rainfall intensity, return frequency,
and total rainfall depth.
DISCHARGE VOLUME
The quantity of runoff discharged from the land surface as
the result of a rainfall event.
EROSION
The detachment and movement of soil, sediment or rock fragments
by water, wind, ice or gravity.
FINANCIAL GUARANTEE
A performance bond, maintenance bond, surety bond, irrevocable
letter of credit, or similar guarantee submitted to the Village by
the permit holder to assure that requirements of this article are
carried out in compliance with the stormwater management plan.
GROSS AGGREGATE AREA
The total area, in acres, of all land located within the
property boundary containing the land development activity.
GROUNDWATER ENFORCEMENT STANDARD
A numerical value expressing the concentration of a substance
in groundwater which is adopted under § 160.07, Wis. Stats.,
and § NR 140.10, Wis. Adm. Code, or § 160.09,
Wis. Stats., and § NR 140.12, Wis. Adm. Code.
GROUNDWATER PREVENTIVE ACTION LIMIT
A numerical value expressing the concentration of a substance
in groundwater which is adopted under § 160.15, Wis. Stats.,
and § NR 140.10, 140.12 or 140.20, Wis. Adm. Code.
IMPERVIOUS SURFACE
A surface that releases the rainfall as surface runoff during
a large portion of the design rainfall event. Rooftops, sidewalks,
parking lots, and street surfaces are examples of impervious surfaces.
INFILTRATION
The process by which rainfall or surface runoff percolates
or penetrates into the underlying soil.
LAND-DEVELOPING ACTIVITY
The construction or redevelopment of buildings, roads, parking
lots, paved and unpaved areas and similar facilities, but not including
agricultural activity.
LAND-DISTURBING CONSTRUCTION ACTIVITY
Any man-made change of the land surface, including removing
vegetation cover, excavating, filling and grading, but not including
agricultural land uses, such as planting, growing, cultivating and
harvesting of crops; growing and tending of gardens; harvesting of
trees; and landscaping modifications.
LAND USER
Any person operating, leasing, renting, or having made other
arrangements with the landowner by which the landowner authorizes
uses of his land.
LANDOWNER
Any person holding title to or having any interest in land.
MAINTENANCE AGREEMENT
A legal document that is filed with the County Register of
Deeds as a property deed restriction and which provides for long-term
maintenance of stormwater management practices.
NON-STORM DISCHARGE
A discharge to the storm sewer system created by some process
other than stormwater runoff.
NONSTRUCTURAL MEASURE
A practice, technique, or measure to reduce the volume, peak
flow rate, or pollutants in stormwater that does not require the design
or installation of fixed stormwater management facilities.
OFF-SITE
Located outside the property boundary described in the permit
application for land development activity.
ON-SITE
Located within the property boundary described in the permit
application for the land development activity.
OTHER THAN RESIDENTIAL DEVELOPMENT
Development of the following land uses: commercial; industrial;
government and institutional; recreation; transportation, communication
and utilities.
PEAK FLOW DISCHARGE RATE
The maximum rate of flow of surface water at which a unit
volume of stormwater is discharged resulting from a storm event.
PERVIOUS SURFACE
A surface that infiltrates rainfall during a large portion
of the design rainfall event. Well-managed lawns, fields and woodlands
are examples of pervious surfaces.
POST-DEVELOPMENT CONDITION
The extent and distribution and land cover types anticipated
to occur under conditions of full development that will influence
stormwater runoff and infiltration.
PRE-DEVELOPMENT CONDITION
The extent and distribution of land cover types present before
the initiation of land development activity, assuming that all land
uses prior to development activity are managed in an environmentally
sound manner.
PRETREATMENT
The treatment of stormwater prior to its discharge to the
primary stormwater treatment practice in order to reduce pollutant
loads to a level compatible with the capability of the primary practice.
RUNOFF
The rainfall, snowmelt or irrigation water flowing over the
ground surface.
SITE RESTRICTION
Any physical characteristic which limits the use of a stormwater
best management practice as prescribed in the Wisconsin Stormwater
Manual.
STORM FREQUENCY
The average period of time during which a storm of a given
duration and intensity can be expected to be equaled or exceeded.
(The ten-year storm is a storm with a frequency of 10 years and would
be equaled or exceeded, on the average, once every 10 years. A ten-year
storm would have a 10% probability of being equaled or exceeded in
any given year.)
STORMWATER DRAINAGE SYSTEM
All facilities used for the conducting of runoff to, through
or from a drainage area to the point of final outlet, including, but
not limited to, the following: conduits, canals, channels, ditches,
streams, culverts, reservoirs, detention ponds, storm sewers and pumping
stations.
STORMWATER MANAGEMENT PLAN
A document that identifies what actions will be taken to
reduce stormwater quantity and pollutant loads from land development
activity to levels meeting the purpose and intent of this article.
STORMWATER MANAGEMENT SYSTEM PLAN
A comprehensive plan developed to address stormwater drainage
and nonpoint-source pollution control problems on a watershed or subwatershed
basis, and which meets the purpose and intent of this article.
STORMWATER RUNOFF
That portion of the precipitation falling during a rainfall
event or that portion of snowmelt that runs off the surface of the
land and into the natural or artificial conveyance or drainage network.
STRUCTURAL MEASURE
Source area practices, conveyance measures, and end-of-pipe
treatments that are designed to control stormwater runoff pollutant
loads, discharge volumes, and peak flow discharge rates.
WETLAND FUNCTIONAL VALUE
The type, quality and significance of the ecological and
cultural benefits provided by wetland resources, such as flood storage,
water quality protection, groundwater recharge and discharge, shoreline
protection, fish and wildlife habitat, floral diversity, aesthetics,
recreation and education.
WETLANDS
An area where water is at, near, or above the land surface
long enough to be capable of supporting aquatic or hydrophytic vegetation
and which has soils indicative of wet conditions. These wetlands include
natural, mitigated and restored wetlands.
WPDES STORMWATER PERMIT
A permit issued by the Wisconsin Department of Natural Resources
under § 283.33, Wis. Stats., that authorizes the point-source
discharge of stormwater to waters of the state.
Unless prior authorization is given by the Building Inspector,
the following methods shall be used in meeting the requirements of
this article.
A. Water quality components. The following methods shall be used in
designing components of stormwater structures needed to meet the water
quality standards of this article:
(1) Practices shall be designed in accordance with the methods set forth
in the latest edition of the Wisconsin Stormwater Manual, Part 2:
Technical Design Guidelines for Stormwater BMPs, as published and
amended by the State of Wisconsin Department of Natural Resources.
(2) Runoff volumes and peak flow rates used in designing the water quality
components of stormwater structures shall be calculated using the
Small Storm Hydrology Method set forth in the latest edition of the
Wisconsin Stormwater Manual, Part 2: Technical Design Guidelines for
Stormwater BMPs, as published and amended by the State of Wisconsin
Department of Natural Resources.
B. Water quantity components. The following methods shall be used in
designing components of stormwater structures needed to meet the water
quantity standards of this article.
(1) Peak flow reducing components and all other stormwater management
structures shall be designed in accordance with standard engineering
practice.
(2) Runoff volumes and peak flow rates used in designing the water quantity
components of stormwater structures shall be based on the principles
of the document entitled "Urban Hydrology for Small Watersheds" (Technical
Release 55: Engineering Division, Soil Conservation Service, United
States Department of Agriculture, June 1992).
If any section, clause, provision or portion of this article
is judged unconstitutional or invalid by a court of competent jurisdiction,
the remainder of the article shall remain in force and not be affected
by such judgment.