[Adopted as § 15.02 of the 2011 Code]
The intent of these regulations is to require control practices
that will reduce the amount of sediment and other pollutants leaving
construction sites during land development or land disturbing activities.
These regulations apply to all land disturbing construction activities
in the Village and within its extraterritorial review powers of Ch.
236, Wis. Stats. These regulations set forth different procedures
for different activities depending upon the size, type and location
of the activities.
This article is adopted under § 61.354, Wis. Stats.
This article applies to land disturbing and land developing
activities on lands within the boundaries and jurisdiction of the
Village and the public and private lands subject to extraterritorial
review under Ch. 236, Wis. Stats. All state-funded or -conducted construction
is exempt from these regulations.
The following terms shall have the meanings indicated:
AGRICULTURAL LAND USE
Use of land for planting, growing, cultivation and harvesting
crops for human or livestock consumption and pasturing or yarding
of livestock.
CONTROL MEASURE
A practice or combination of practices to control erosion
and attendant pollution.
CONTROL PLAN
A written description of the number, locations, sizes and
other pertinent information of control measures designed to meet the
requirements of this article submitted by the applicant for review
and approval by the Building Inspector.
EROSION
The detachment and movement of soil, sediment or rock fragments
by water, wind, ice or gravity.
LAND DEVELOPING ACTIVITY
The construction of buildings, roads, parking lots, paved
storage areas and similar facilities.
LAND DISTURBING CONSTRUCTION ACTIVITY
Any man-made change of land surface, including removing vegetative
cover, excavating, filling and grading, but not including agricultural
land uses, such as planting, growing, cultivating and harvesting crops;
growing and tending gardens; harvesting trees; and landscaping modifications.
LAND USER
Any person operating, leasing, renting or having made other
arrangements with the landowner by which the landowner authorizes
use of his land.
LANDOWNER
Any person holding title to or having an interest in land.
PERMITTEE
Landowner, land user, designated agent or applicant for permit.
RUNOFF
The rainfall, snow melt or irrigation water flowing over
the ground surface.
SITE
The entire area included in the legal description of the
land on which the land disturbing or land development activity is
proposed in the permit application.
VEGETATION REMOVAL
Elimination of living vegetation or cutting or injuring vegetation
so the vegetation dies.
All control measures required to comply with this article shall
meet the design criteria, standards and specifications for the control
measures based on accepted design criteria, standards and specifications
identified by the Building Inspector and in accordance with, but not
limited to, the Wisconsin Construction Site Best Management Practice
Handbook.
All sedimentation basin and other control measures necessary
to meet the requirements of these regulations shall be maintained
by the applicant or subsequent landowner during the period of land
disturbance and land development of the site in a satisfactory manner
to ensure adequate performance and to prevent nuisance conditions.
No landowner or land user may commence a land disturbance or
land development activity subject to these regulations without receiving
prior approval of a control plan for the site and a permit from the
Building Inspector. At least one landowner and land user controlling
or using the site and desiring to undertake a land disturbing or land
developing activity subject to these regulations shall submit an application
for a permit and a control plan and pay an application fee to the
Building Inspector. By submitting an application, the applicant is
authorizing the Building Inspector to enter the site to obtain information
required for the review of the control plan. All appropriate measures
are to be installed prior to the issuance of a building permit or
commencement of construction.
A. Content of erosion control statement for land disturbing activities
that do not exceed 20,000 square feet in area. An erosion control
plan statement with a simple map shall be submitted to briefly describe
the site and erosion controls, including the site development schedule
that will be used to meet the requirements of this article.
B. Content of the erosion control plan for land disturbing activities
where such activities exceed 20,000 square feet in area.
(1) Existing site map. A map of existing site conditions, including structures,
on a scale of at least one inch equals 100 feet showing the site and
immediately adjacent areas within 50 feet of the property boundary.
(a)
Site boundaries and adjacent lands which accurately identify
site location.
(b)
Lakes, streams, wetlands, channels, ditches and other watercourses
on and immediately adjacent to the site.
(c)
One-hundred-year floodplains.
(d)
Location of the predominant soil types.
(f)
Location and dimensions of stormwater drainage systems and natural
drainage patterns on and immediately adjacent to the site.
(g)
Locations and dimensions of utilities, structures, roads, highways
and paving.
(h)
Site topography at a contour interval not to exceed five feet.
(2) Plan of final site conditions. A plan of final site conditions on
the same scale as the existing site map showing the site changes.
(3) Site construction plan. A site construction plan including:
(a)
Locations and dimensions of all proposed land disturbing activities.
(b)
Locations and dimensions of all temporary soil or dirt stockpiles.
(c)
Locations and dimensions of all construction site management
control measures necessary to meet the requirements of these regulations.
(d)
Schedule of anticipated starting and completion dates of each
land disturbing or land developing activity, including the installation
of construction site control measures needed to meet the requirements
of these regulations.
(e)
Provisions for maintenance of the construction site control
measures during construction.
(f)
Identification of all trees in excess of five inches at four
feet above grade that will be removed.
C. Review of control plan or statement. Within 30 days of receipt of
the application, control plan or control plan statement and fee, the
Building Inspector shall review the application and control plan or
control statement to determine if the requirements of these regulations
are met. The Building Inspector may request comments from other departments,
agencies or the Village Engineer. If the requirements of these regulations
are met, the Building Inspector shall approve the plan, inform the
applicant and issue a permit. If the conditions are not met, the Building
Inspector shall inform the applicant in writing and may either require
needed information or disapprove the plan. Within 10 days of receipt
of needed information, the Building Inspector shall again determine
if the plan or statement meet the requirements of these regulations.
If the plan or statement is disapproved, the Building Inspector shall
inform the applicant in writing of the reasons for the disapproval.
D. Permits.
(1) Duration. Permits shall be valid for a period of 180 days or the
length of time of the building permit or other construction authorizations,
whichever is longer, from the date of issuance. The Building Inspector
may extend the period one or more times for up to a maximum of an
additional 180 days. The Building Inspector may require additional
control measures as a condition of the extension if they are necessary
to meet the requirements of these regulations.
(2) Letter of credit. As a condition of approval and issuance of the
permit for land disturbing construction activities exceeding 20,000
square feet, the Building Inspector shall require the applicant to
deposit an irrevocable letter of credit issued by an approved lending
institution to guarantee a good faith execution of the approved control
plan and any permit conditions. The line of credit will be in the
amount of the estimated cost as determined by the Building Inspector
to implement the approved control plan and any permit conditions and
shall be maintained in such amount until the project is complete with
vegetative cover fully established.
(3) Permit conditions. All permits shall require the permittee to:
(a)
Obtain permission in writing from the Building Inspector prior
to modifying the control plan or control statement.
(b)
Install all control measures as identified in the approved control
plan or control statement prior to commencing work.
(c)
Maintain all road drainage systems, stormwater drainage systems,
control measures and other facilities identified in the control plan
or control statement.
(d)
Repair any siltation or erosion damage to adjoining surfaces
and drainageways resulting from land developing or disturbing activities.
(e)
Inspect the construction control measures after each rain of
0.5 inch or more and at least once each week and make needed repairs.
(f)
Allow the Building Inspector to enter the site for the purpose
of inspecting compliance with the control plan or control statement
or for performing any work necessary to bring the site into compliance
with the control plan or control statement.
(4) Charge for permits. The following schedule of activities shall require
the advance payment of fees for each activity listed in accordance
with the schedule of fees approved by resolution by the Village Board
and placed permanently on file in the office of the Village Clerk:
(a)
Erosion control statement fee, see current fee schedule.
(b)
Erosion control plan fee, see current fee schedule.
(c)
Actual engineering or other expenses incurred by the Village
in connection with the erosion control plan submitted will be billed
to the permittee.
(d)
Additions to existing structures of less than 500 square feet,
see current fee schedule.
(e)
All other construction activity under 20,000 square feet, see
current fee schedule.
(f)
Projects involving land disturbing construction activity of
20,000 square feet or more, see current fee schedule.
The Building Inspector shall inspect construction sites at times
appropriate to states of construction. If land disturbing or land
development activities are being carried out without a permit, the
Building Inspector may enter the land pursuant to the provisions or
§ 66.0119.
[Adopted as § 15.09 of the 2011 Code]
The intent of this article is to authorize the Village Engineer
to require stormwater management practices which will reduce the amount
of sediment, other pollutants, and peak flow of runoff from lands
undergoing development. This article shall apply to all land disturbance
activities occurring after adoption of this article.
This article is adopted by the Village of Williams Bay under
the authority granted by § 61.354, Wis. Stats., to fulfill
the objectives of § 281.33, Wis. Stats.
This article applies to land developing and land disturbing
activities on lands situated within the corporate limits of the Village
of Williams Bay.
As used in this article, the following terms shall have the
meanings indicated:
AGRICULTURAL LAND USE
Use of land for planting, growing, cultivating and harvesting
of crops for human or livestock consumption and pasturing or yarding
of livestock.
APPLICANT
The landowner or one of the landowners and/or land user or
users of a site subject to this article.
ARTERIAL ROADWAY
Any federal, state, or county trunk highway or any other
street or roadway, as determined by the Village Engineer, that provides
an important transportation link.
CHANNEL
A natural or artificial watercourse constructed, with a definite
bed and banks to confine and conduct the normal flow of water.
CLEAN FILL
Uncontaminated rock, stone, sand, soil, brick, building stone,
concrete, reinforced concrete, broken pavement, and unpainted or untreated
wood.
CONTROL MEASURE
A practice or combination of practices to control erosion,
stormwater and attendant pollution.
DEPARTMENT
The Wisconsin Department of Natural Resources.
DESIGN STORM
A hypothetical discrete rainstorm characterized by specific
duration, temporal distribution, rainfall intensity, return frequency
and total depth of rainfall.
DETENTION BASIN
A type of stormwater basin which has a direct outlet and
serves to reduce water velocities and peak flows by outletting at
designed flow rates (to temporarily detain water flows). A detention
basin is considered wet if it is greater than three feet deep from
the permanent water level to the bottom of the basin.
DISTURBED AREA
A site which, due to land developing or disturbing activities,
has or will experience disturbance or destruction of the existing
land surface and/or vegetative cover.
EROSION
The detachment and movement of soil, sediment or rock fragments
by means of water, ice or gravity.
IMPERVIOUS SURFACE
A surface through which rainfall does not infiltrate. Rooftops,
sidewalks, parking lots, and street surfaces are examples of impervious
surfaces.
LAND DEVELOPING ACTIVITY
The construction or erection of buildings, roads, parking
lots, paved storage areas and other structures.
LAND DISTURBING ACTIVITY
Any man-made construction upon or change of the land surface
including removal of vegetative 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.
LAND USER
Any person operating upon, leasing, or renting land, or having
made any other arrangements with the landowner by which the land user
engages in uses of land which are sites subject to this article.
LANDOWNER
Any person holding title to or having an interest in a parcel
of land which includes a site subject to this article.
OFF-SITE
Located outside the property boundary described in the permit
application for land development activity.
PERFORMANCE SECURITY
A performance bond, maintenance bond, surety bond, irrevocable
letter of credit, or similar guarantees submitted to the Village of
Williams Bay by the permit holder to assure that requirements of this
article are carried out in compliance with the stormwater management
plan.
PREDEVELOPMENT LAND USE CONDITION
Land which has runoff characteristics equivalent to runoff
curve numbers (CNs) of: 30, 58, 71, and 78 for Hydrologic Soil Groups
A, B, C, and D, respectively. This term is used for the purpose of
matching of pre and post development stormwater peak flows and volumes
as required by this article.
RETENTION BASIN
A type of stormwater basin which has no direct outlet and
empties by infiltration to the natural soil surface and by evaporation
(to retain all water).
RUNOFF
The rainfall, snow melt, or irrigation water flowing over
the ground surface.
SEDIMENTATION BASIN
An artificially created holding pond or other catchment for
the purpose of capturing and retaining any sedimentation flowing off
of sites as a result of land developing or land disturbing activities.
SHEET FLOW RUNOFF
Water, usually storm runoff, flowing in a thin layer of the
ground surface; also called "overland flow" (by convention, this distance
does not exceed 300 feet).
SITE
That parcel or other division of land set forth in the legal
description contained in the application on which the land disturbing
or land development activity is proposed to take place.
STORMWATER
Precipitation runoff, snowmelt runoff, surface runoff and
drainage.
STORMWATER BASIN
Artificially created holding pond or other catchment for
the purposes of retaining or detaining stormwater.
STORMWATER CONTROL PLAN
A plat of survey setting forth a written description of the
number, locations, sizes, and other pertinent data as to control measures
designed to meet the requirements of this article submitted by the
applicant for review and approval by the Village of Williams Bay.
TIME OF CONCENTRATION
The time for surface runoff to travel from the farthest point
in a watershed to the outlet point of the watershed. For purposes
of calculations used to meet the requirements of this article; the
following roughness coefficients shall be used:
Flow Regime
|
Predevelopment
|
Post-Development
|
---|
Overland flow (length 300 feet)
|
n = 0.35
|
n 0.25
|
Shallow concentrated flow (Velocity = k* slope 0.5)*
|
k 2.5
|
k 15
|
Flow in vegetated channels
|
n = 0.10
|
n 0.04
|
NOTES:
|
---|
*
|
Velocity in feet/second; Slope in feet/foot.
|
All control measures required to comply with this article shall
meet with the design criteria, standards and specifications for the
control measures as set forth in "Natural Resources Conservation Service
Standards and Specifications" manual; criteria established by this
article, or criteria identified by the Village of Williams Bay.
The Village of Williams Bay or designee shall inspect stormwater
control practices upon completion to insure compliance with this article.
The recorded plat, certified survey, or land title for lands
which shall have stormwater controls must identify the permanent location
of all proposed stormwater facilities. Further, the recorded plat,
certified survey, or land title, in the absence of any other agreement
with the Village of Williams Bay must state that the facilities shall
be maintained by the property owner of record to assure its proper
function as a nonpoint source control practice. An operation and maintenance
plan shall be developed for all detention or retention basins. At
a minimum, the plan shall address sediment removal, inlet and outlet
maintenance, and keeping embankments clear of woody vegetation. The
plan may also need to address weed or algae growth and removal, insect
and wildlife control and landscaping practices.