The Village of New Glarus finds that uncontrolled,
post-construction runoff has a significant impact upon water resources
and the health, safety and general welfare of the community and diminishes
the public enjoyment and use of natural resources. Specifically, uncontrolled
post-construction runoff can:
A. Degrade physical stream habitat by increasing stream
bank erosion, increasing streambed scour, diminishing groundwater
recharge, diminishing stream base flows and increasing stream temperature.
B. Diminish the capacity of lakes and streams to support
fish, aquatic life, and recreational and water supply uses by increasing
pollutant loading of sediment, suspended solids, nutrients, heavy
metals, bacteria, pathogens and other urban pollutants.
C. Alter wetland communities by changing wetland hydrology
and by increasing pollutant loads.
D. Reduce the quality of groundwater by increasing pollutant
loading.
E. Threaten public health, safety, property and general
welfare by overtaxing storm sewers, drainageways, and other minor
drainage facilities.
F. Threaten public health, safety, property and general
welfare by increasing major flood peaks and volumes.
G. Undermine floodplain management efforts by increasing
the incidence and levels of flooding.
The fees referred to in other sections of this
chapter shall be established by the Village Administrator and may
from time to time be modified by resolution. A schedule of the fees
established by the Village Administrator shall be available for review
at the office of the Village Administrator.
As used in this chapter, the following terms
shall have the meanings indicated:
BEST MANAGEMENT PRACTICE or BMP
Structural or nonstructural measures, practices, techniques
or devices employed to avoid or minimize sediment or pollutants carried
in runoff to waters of the state.
BUSINESS DAY
A day the office of the Village Administrator is routinely
and customarily open for business.
CEASE AND DESIST ORDER
A court-issued order to halt land-disturbing construction
activity that is being conducted without the required permit.
CONNECTED IMPERVIOUSNESS
An impervious surface that is directly connected to a separate
storm sewer or water of the state via an impervious flow path.
DESIGN STORM
A hypothetical discrete rainstorm characterized by a specific
duration, temporal distribution, rainfall intensity, return frequency,
and total depth of rainfall.
DEVELOPMENT
Residential, commercial, industrial or institutional land
uses and associated roads.
DIVISION OF LAND
A subdivision or minor subdivision as defined by Village
of New Glarus Subdivision Regulations.
EFFECTIVE INFILTRATION AREA
The area of the infiltration system that is used to infiltrate
runoff and does not include the area used for site access, berms or
pretreatment.
EROSION
The process by which the land's surface is worn away by the
action of wind, water, ice or gravity.
EXTRATERRITORIAL
The unincorporated area within 1.5 miles of the corporate
limits.
FINAL STABILIZATION
All land-disturbing construction activities at the construction
site have been completed and a uniform, perennial, vegetative cover
has been established, with a density of at least 70% of the cover,
for the unpaved areas and areas not covered by permanent structures,
or employment of equivalent permanent stabilization measures.
FINANCIAL GUARANTEE
A performance bond, maintenance bond, surety bond, irrevocable
letter of credit, or similar guarantees submitted to the Village Administrator
by the responsible party to assure that requirements of this chapter
are carried out in compliance with the stormwater management plan.
IMPERVIOUS SURFACE
An area that releases as runoff all or a large portion of
the precipitation that falls on it, except for frozen soil. Rooftops,
sidewalks, driveways, parking lots and streets are examples of areas
that typically are impervious.
IN-FILL AREA
An undeveloped area of land located within existing development.
INFILTRATION
The entry of precipitation or runoff into or through the
soil.
INFILTRATION SYSTEM
A device or practice such as a basin, trench, rain garden
or swale designed specifically to encourage infiltration, but does
not include natural infiltration in pervious surfaces such as lawns,
redirecting of rooftop downspouts onto lawns or minimal infiltration
from practices such as swales or roadside channels designed for conveyance
and pollutant removal only.
KARST FEATURE
An area or geologic feature subject to bedrock dissolution
so that it is likely to provide a conduit to groundwater, and may
include caves, enlarged fractures, mine features, exposed bedrock
surfaces, sinkholes, springs, seeps or swallets.
LAND DEVELOPMENT ACTIVITY
Any construction-related activity that results in the addition
or replacement of impervious surfaces such as rooftops, roads, parking
lots, and other structures. Measurement of areas impacted by land
development activity includes areas that are part of a larger common
plan of development or sale where multiple separate and distinct land-disturbing
construction activities may be taking place at different times on
different schedules but under one plan.
LAND-DISTURBING CONSTRUCTION ACTIVITY
Any man-made alteration of the land surface resulting in
a change in the topography or existing vegetative or nonvegetative
soil cover that may result in runoff and lead to an increase in soil
erosion and movement of sediment into waters of the state. "Land-disturbing
construction activity" includes clearing and grubbing, demolition,
excavating, pit trench dewatering, filling and grading activities.
MAINTENANCE AGREEMENT
A legal document that provides for long-term maintenance
of stormwater management practices.
MEP or MAXIMUM EXTENT PRACTICABLE
A level of implementing best management practices in order
to achieve a performance standard specified in this chapter which
takes into account the best available technology, cost effectiveness
and other competing issues, such as human safety and welfare, endangered
and threatened resources, historic properties and geographic features.
MEP allows flexibility in the way to meet the performance standards
and may vary based on the performance standard and site conditions.
NEW DEVELOPMENT
Development resulting from the conversion of previously undeveloped
land or agricultural land uses.
OFF SITE
Located outside the property boundary described in the permit
application.
ON SITE
Located within the property boundary described in the permit
application.
PERCENT FINES
The percentage of a given sample of soil which passes through
a 200 sieve.
PERFORMANCE STANDARD
A narrative or measurable number specifying the minimum acceptable
outcome for a facility or practice.
PERMIT
A written authorization made by the Village Administrator
to the applicant to conduct land-disturbing construction activity
or to discharge post-construction runoff to waters of the state.
PERMIT ADMINISTRATION FEE
A sum of money paid to the Village Administrator by the permit
applicant for the purpose of recouping the expenses incurred by the
authority in administering the permit.
PERVIOUS SURFACE
An area that releases as runoff a small portion of the precipitation
that falls on it. Lawns, gardens, parks, forests or other similar
vegetated areas are examples of surfaces that typically are pervious.
POLLUTANT
Has the meaning given in § 283.01(13), Wis. Stats.
POLLUTION
Has the meaning given in § 281.01(10), Wis. Stats.
POST-CONSTRUCTION SITE
A construction site following the completion of land-disturbing
construction activity and final site stabilization.
PREDEVELOPMENT CONDITION
The extent and distribution of land cover types present before
the initiation of land-disturbing construction activity, assuming
that all land uses prior to development activity are managed in an
environmentally sound manner.
REDEVELOPMENT
Areas where development is replacing older development.
RUNOFF
Stormwater or precipitation, including rain, snow or ice
melt or similar water, that moves on the land surface via sheet or
channelized flow.
SEPARATE STORM SEWER
A conveyance or system of conveyances, including roads with
drainage systems, streets, catch basins, curbs, gutters, ditches,
constructed channels or storm drains, which meets all of the following
criteria:
A.
Designed or used for collecting water or conveying
runoff.
B.
Not part of a combined sewer system.
C.
Not draining to a stormwater treatment device
or system.
D.
Discharges directly or indirectly to waters
of the state.
SITE
The entire area included in the legal description of the
land on which the land-disturbing construction activity occurred.
STOP-WORK ORDER
An order issued by the Village Administrator which requires
that all construction activity on the site be stopped.
STORMWATER MANAGEMENT PLAN
A comprehensive plan designed to reduce the discharge of
pollutants from stormwater after the site has undergone final stabilization
following completion of the construction activity.
STORMWATER MANAGEMENT SYSTEM PLAN
A comprehensive plan designed to reduce the discharge of
runoff and pollutants from hydrologic units on a regional or municipal
scale.
TECHNICAL STANDARD
A document that specifies design, predicted performance and
operation and maintenance specifications for a material, device or
method.
TOP OF THE CHANNEL
An edge, or point on the landscape, landward from the ordinary
high-water mark of a surface water of the state, where the slope of
the land begins to be less than 12% continually for at least 50 feet.
If the slope of the land is 12% or less continually for the initial
50 feet landward from the ordinary high-water mark, the top of the
channel is the ordinary high-water mark.
TR-55
The United States Department of Agriculture, Natural Resources
Conservation Service (previously Soil Conservation Service), Urban
Hydrology for Small Watersheds, Second Edition, Technical Release
55, June 1986.
TYPE II DISTRIBUTION
A rainfall-type curve as established in the United States
Department of Agriculture, Soil Conservation Service, Technical Paper
149, published 1973. The Type II curve is applicable to all of Wisconsin
and represents the most intense storm pattern.