Source: https://ecode360.com/12226677
Timestamp: 2019-10-14 16:03:21
Document Index: 12495724

Matched Legal Cases: ['§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 60', '§ 93', '§ 60', '§ 60', '§ 60', '§ 66', '§ 66', '§ 236', '§ 60', '§ 60', '§ 60', '§ 60', '§ 281', '§ 463', '§ 463', '§ 60', '§ 30', '§ 85', '§ 281', '§ 535', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 535', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 463', '§ 16']

Town of Grand Chute, WI Stormwater Utility and Management
Ch 463 Art I Sanitary District No. 3
§ 463-2 Authority and title.
§ 463-3 Jurisdiction.
§ 463-4 Definitions.
§ 463-5 District authority.
§ 463-6 Rates and charges.
§ 463-7 Rate setting, commencement and adjustment.
§ 463-8 Billing and terms of payment.
§ 463-9 Credits.
§ 463-10 Appeals.
§ 463-11 Violations and penalties.
§ 463-12 Sanitary District No. 3 Fund; annual budget.
Ch 463 Art II Stormwater Management
§ 463-13 Authority; effect on other laws.
§ 463-14 Findings of fact.
§ 463-15 Purpose and intent.
§ 463-16 Applicability; jurisdiction; exclusions; maintenance of effort.
§ 463-17 Definitions.
§ 463-18 Technical standards.
§ 463-19 Performance standards.
§ 463-20 Permitting requirements, procedures and fees.
§ 463-21 Stormwater management plan.
§ 463-22 Maintenance agreement.
§ 463-23 Financial guarantee.
§ 463-24 Fee schedule.
§ 463-25 Enforcement; violations and penalties.
§ 463-26 Appeals.
§ 463-27 Variances.
§ 463-28 Limitations on municipal responsibility.
Chapter 463 Stormwater Utility and Management
Article I Sanitary District No. 3
[Adopted 1-7-1997 as Ch. 22 of the 1997 Code]
It is the purpose of this article to promote the health, safety and welfare of the Town's citizens, property owners and business operators by establishing the rules and regulations for collecting, storing, treating and disposing of the Town's surface water runoff.
This article is adopted under the authority granted by § 60.77(5), Wis. Stats., and shall be known as the "Town of Grand Chute Sanitary District No. 3 Ordinance."
Those elements of the system which provide for the control of the Town's surface water runoff are of benefit and provide services to all property within the Town of Grand Chute. including those not currently served by the storm elements of the system. Therefore, Sanitary District No. 3 shall encompass the entire Town of Grand Chute as set forth in Exhibit A of the order creating the Town of Grand Chute Sanitary District No. 3 dated September 2, 1997.
Unless the context specifically indicates otherwise, the meaning of terms used in this article shall be as follows. "Shall" is mandatory, while "may" is permissive.
Pursuant to this article and the functions of Sanitary District No. 3 is defined by § 93.50(1), Wis. Stats.
COMMISSION or BOARD
Refers to the Grand Chute Sanitary District No. 3 Board of Commissioners.
The property owner receiving bills for either a stormwater user fee or special assessment.
Real property which has been altered from its natural state by the addition of any improvements, which may include a building, structure, impervious surface, change of grade or landscaping. For new construction, a property shall be considered developed pursuant to this article upon issuance of a building permit.
Refers to the person charged with carrying out the day-to-day administrative and managerial functions of Sanitary District No. 3.
DISTRICT or UTILITY
Refers to the Town of Grand Chute Sanitary District No. 3.
Real property developed prior to the enactment of this article.
IMPERVIOUS AREA OR SURFACE
Areas that have been paved, covered or compacted to inhibit the natural infiltration of water into the soil or cause water to run off the area in greater quantities or at an increased rate of flow from that present under natural conditions as undeveloped property. Such areas may include, but are not limited to, roofs, roof extensions, patios, porches, driveways, sidewalks, pavement, gravel, athletic courts and compacted surfaces. Excluded from this definition are undisturbed land, lawns and fields.
Real property developed at any time after enactment of this article.
Includes all property within the district limits not defined as residential property. This includes, but is not limited to, agricultural, commercial, industrial, institutional, governmental, and transient rental property as well as churches and schools.
All costs incurred in the operation and maintenance of Sanitary District No. 3 in accordance with standard Town accounting procedures.
RESIDENTIAL EQUIVALENT UNIT or REU
The average impervious area of a single-family residential developed property located within the Town of Grand Chute as established by Commission resolution.
Any lot or parcel developed exclusively for residential purposes, including but not limited to single-family homes, manufactured homes, and multifamily dwellings, including apartment buildings, town homes and condominiums.
REU RATE
The dollar amount charged on each REU as established by Commission resolution.
The surface water, including rain and snow melt, that is inhibited by impervious surfaces from naturally infiltrating into soil.
SANITARY DISTRICT NO. 3 FUND or FUND
Refers to the account designated herein to hold revenues, interest and fees generated for purpose of carrying out the functions of Sanitary District No. 3.
Refers to charges levied upon property in a limited and determinable area for special benefits conferred upon such property by any municipal work or improvement.
All constructed facilities or natural features used for collecting, storing, and conducting stormwater to, through and from drainage areas to the point of final outlet. Stormwater facilities collectively constitute a stormwater system.
Real property left in or returned to a natural state without any improvements such as a building, structure, impervious surface, change of grade or landscaping.
Charges to property owners based on their property's classification and current REU rate.
Sanitary District No. 3 may acquire, construct, lease, own, operate, maintain, extend, expand, replace, clean, dredge, repair, conduct, manage and finance such facilities as are deemed by the District to be proper and reasonably necessary for a system of surface water management. These facilities may include, without limitation by enumeration, surface and underground drainage facilities, sewers, watercourses, retaining walls and ponds and such other facilities as will support a stormwater management system.
The Grand Chute Town Board of Supervisors shall serve as the Sanitary District No. 3 Commission and exercise due authority pursuant to §§ 60.74 through 60.79, Wis. Stats. This includes the authority to fix and collect charges, levy special assessments, lease or acquire any real and personal property that may be needed for the purposes of surface water management, and enact and enforce ordinances to implement this authority.
The Town Administrator will serve as Director of Sanitary District No. 3 if or until such time as the Commission designates otherwise by resolution.
Commissioners, the District Director, other authorized employees of the Town or District, or its authorized agents shall be permitted to enter upon all properties in the Town for the purpose of inspection, observation, measurement, sampling, testing, construction or enforcement of this article in accordance with laws governing the authority of the Town.
The cost of creating, operating and maintaining all stormwater management systems and the financing of existing and necessary repairs, replacement, improvements and extensions shall be born by Sanitary District No. 3. Pursuant to its powers and duties under §§ 60.77 and 60.78, Wis. Stats., the District Commission may fix and collect charges, levy special assessments, and borrow money or issue municipal bonds to meet its obligations.
User fee. Sanitary District No. 3 shall establish fees upon all existing and new developments within its jurisdiction, defined herein as a stormwater user fee. The fee will be designed to collect the administrative, operational and maintenance costs of the District and the portion of capital costs not covered by special assessments.
The user fee will be based on the impervious area associated with each developed parcel. The average imperious area of the REU shall be established by Commission resolution.
For purposes of imposing user fees, all parcels within the Sanitary District are classified into three categories:
Multifamily residential; and
The charges imposed for a single-family home shall be the fee rate of one REU as established by resolution.
The Commission shall also establish by resolution a method for determining the number of REUs for multifamily residential property and a method for determining the number of REUs for nonresidential property.
The number of REUs assigned to a property shall be rounded to the nearest whole REU according to mathematical convention (below 0.5 rounded down; 0.5 and greater rounded up).
Special assessments. Pursuant to § 60.77(5)(f), Wis. Stats., the Sanitary District may impose special assessments on property that is in an area specifically benefited by a particular stormwater management facility. Assessments will be based on the general benefits received by that area as determined by the Commission.
Assessments will be developed for the benefits/services received by a particular area that may not be appropriate to spread to property throughout the Town.
The rate, per front foot of charged special assessment, for facility construction to abutting property owners shall be as determined by the Board of Commissioners, following public hearing and final resolution procedures under the above-stated statutes and Chapter 57, Article II of this Code.
The REU equivalent area, the REU rate, and REU methods and any future changes in those determinations shall be made by resolution.
Stormwater user fees for existing development will commence from the effective date of this article or at such time as the Commission establishes an REU rate.
Stormwater user fees for new development will commence from the date of construction permit issuance. The property owner shall be responsible for completing a Sanitary District No. 3 service application form any time a building permit is issued (exclusive of those issued to existing single-family residences).
The Commission shall review these classifications and determinations at least biannually and maintain its current settings with the Town Clerk.
Stormwater user fees shall be included with quarterly water and sewer bills for properties receiving such bills. A bill for Sanitary District No. 3 charges will be issued quarterly to properties in Grand Chute not serviced by Town Sanitary Districts. All charges and bills related to Sanitary District No. 3 shall be payable in accordance with the procedures and penalties in effect for Sanitary District bills.
Bills for special assessments are subject to the provisions of § 66.0703, Wis. Stats.
It is the intent of Sanitary District No. 3 that all developed property (existing and new) within the district boundaries contribute to the operation, maintenance and improvement of the stormwater management system in proportion to the runoff emanating from that property.
The Board of Commissioners may provide credits against certain of the charges set forth above for facilities installed and maintained by the property owner for the purpose of lessening the surface water runoff from that given property.
Credit will only be allowed for properties where structural controls are maintained in fully functional condition and according to maintenance criteria and design standards issued by the Sanitary District.
Customers seeking credit for private facilities must file a written application with the Town Clerk on a form provided by Sanitary District No. 3. Applications must include all information necessary to fully explain the basis of the credit request, include an amount the customer asserts is an appropriate credit, and be accompanied by the appropriate application fee. The Commission shall, by resolution, set a fee for residential and nonresidential applications for credit. Application fees shall be set to reflect the cost to the Sanitary District of inspecting and verifying subject facility. Current application fees will be maintained with the Town Clerk.
The Director shall review a submitted application and recommend an action to the Commission within 90 days of receiving the application. The Commission must notify the applicant in writing of its decision within 30 days of receiving the Director's recommendation. The Commission's determination regarding credit applications is final.
In no event shall credit provided to an applicant exceed 85% of the charges levied on the property. The remaining 15% represents that portion of the charges attributed to administering the Sanitary District for the benefit of the entire community.
Sanitary District No. 3 reserves the right to inspect periodically all stormwater facilities for which a credit has been given to ascertain whether they are operating properly. If such a facility fails to operate properly, the Director shall issue an order to repair the facility. If the repairs are not completed within 60 days of the Director's order, the Director may issue an order eliminating or reducing credits to an appropriate level. Any such facility shall not be eligible to reapply for credit for a period of 24 months following any credit reduction or elimination ordered by the Director.
The issuance of any building permit or other action which changes or intensifies the existing land development or a nonresidential property shall be cause for an adjustment of the charges or credits on that property. It is the property owner's obligation to inform the Director in writing of any such changes. Failure to inform the Director within 60 days of the permit issuance or land development change may result in an increase in charges on or the elimination or reduction of credit to the subject property by resolution of the Commission.
The stormwater user fee may be appealed by filing a written appeal with the Town Clerk prior to the user fee due date as set out on the utility bill or within 30 days of payment after the due date.
Any appeal shall include a survey prepared by a land surveyor showing impervious surface area, total parcel area, the amount of user fee the customer asserts is appropriate, and other information pertaining to the appeal. Failure to file an appeal within 30 days of payment waives all right to later appeal the user fee.
The Director of the Sanitary District will review written appeals for conformity with the procedures for appeal described herein and recommend an action to the Board of Commissioners to uphold, modify or deny the appeal. The Commission will have 30 days to act upon receiving the Director's recommendation. The Commission will make a determination to uphold, modify or deny the appeal. The Commission may act with or without a hearing and will inform the customer in writing of its decision. The Commission's determination is final.
The amount associated with a successful appeal will be credited in full or in part to successive future bills until such time as the appealed amount is returned. The entire amount may be refunded at the discretion of the Director.
The filing of a written appeal does not remove the customer from an obligation to pay the user fee under appeal. All appealed user fees are subject to the terms of payments specified elsewhere in this article.
Special assessments may be appealed in accordance with § 66.0703(12), Wis. Stats.
Failure to pay a stormwater user fee or special assessment when due shall constitute a violation of this article and is subject to the penalties in effect for water and sewer bills issued by the Town of Grand Chute Sanitary District No. 1 and No. 2.
Easements intended for periodic or occasional use as conductors for the flow of surface water runoff shall be maintained in an unobstructed condition by the owners of the properties they cross. When specified, as by restrictive covenant, the Sanitary District shall have the right to determine if any obstruction exists and to repair and maintain, or require such repair and maintenance by the property owner, as shall be reasonably necessary to keep the conductors unobstructed.
It shall be a violation of this article to connect or outlet, either directly or indirectly, any discharge line or sewer carrying anything other than stormwater, surface water runoff, or groundwater to a stormwater sewer, ditch or conveyance structure.
It shall be a violation of this article to dump or dispose of junk, rubbish, trash, garbage, yard waste, household waste, industrial waste or debris in a stormwater sewer, ditch, or conveyance structure.
All site development and redevelopment shall include adequate and proper stormwater drainage and erosion control provisions in accordance with applicable zoning and subdivision control ordinances.[1]
Editor's Note: See Ch. 475, Subdivision of Land, and Ch. 535, Zoning.
Any person violating or failing to comply with the provisions of this article shall, upon conviction thereof, forfeit an amount as prescribed in the Uniform Forfeiture and Bond Schedules plus the cost of prosecution for each violation and in default of payment of such forfeiture and costs shall be imprisoned in the county jail until payment thereof, but not exceeding 30 days. Each violation and each day a violation exists or continues shall constitute a separate offense. In addition, the remedies authorized by §§ 236.30, 236.31 and 235.32, Wis. Stats., shall be available to the Town.
All revenues and interest earned and fees collected for stormwater service and special assessments shall be deposited in a segregated fund titled "Sanitary District No. 3 Fund."
Disbursements from this fund will be authorized by the Board of Commissioners and will be used exclusively for the operation, maintenance and improvement of the Town's stormwater system.
The fund shall not revert to any other Town district or general fund and may not be transferred for any other purpose, including to avoid a default on bonds not issued by Sanitary District No. 3.
The Sanitary District shall prepare an annul budget, which is to include all operation and maintenance costs, debt service and other costs related to the operation of the Sanitary District. The budget is subject to approval by the Board of Commissioners.
Any excess of revenues over expenditures in a year will be retained by the stormwater fund.
[Adopted 9-5-2017 by Ord. No. 2017-14[1]]
Editor’s Note: This ordinance also repealed former Art. II, Stormwater Management, adopted 1-7-1997 as Ch. 26 of the 1997 Code, as amended.
This article is adopted by the Town of Grand Chute Board under the authority granted by § 60.627, Wis. Stats. This article supersedes all provisions of an ordinance previously enacted in accordance with § 60.62, Wis. Stats., that relate to post-construction stormwater management regulations. Except as otherwise specified in § 60.627, Wis. Stats., the provisions in § 60.62, Wis. Stats., apply to this article and to any amendments to this article.
The Town of Grand Chute Board hereby designates the Plan Commission and the Community Development Department to administer and enforce the provisions of this article.
The Town of Grand Chute Board finds that uncontrolled post-construction stormwater 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:
Degrade physical stream habitats by increasing stream bank erosion, increasing streambed scour, diminishing groundwater recharge, diminishing stream base flows and increasing stream temperature.
Diminish the capacity of lakes and streams to support fish, aquatic life, recreational uses, and water supplies by increasing pollutant loading of sediment, suspended solids, nutrients, heavy metals, bacteria, pathogens and other urban pollutants.
Alter wetland communities by changing wetland hydrology and increasing pollutant loads.
Intent. It is the intent of the Town of Grand Chute Board that this article regulates post-construction stormwater discharges to waters of the state. This article may be applied on a site-by-site basis. The Town of Grand Chute Board recognizes, however, that the preferred method of achieving the stormwater performance standards set forth in this article is through the preparation and implementation of comprehensive, systems-level stormwater management plans that cover hydrologic units, such as watersheds, on a municipal and regional scale. Such plans may prescribe regional stormwater devices, practices or systems, any of which may be designed to treat runoff from more than one site prior to discharge to waters of the state. Where such plans are in conformance with the performance standards developed under § 281.16, Wis. Stats., for regional stormwater management measures and have been approved by the Town of Grand Chute Board, it is the intent of this article that the approved plan be used to identify post-construction management measures acceptable for the community.
Where not otherwise limited by law, this article applies to all post-construction sites, unless the site is otherwise exempt pursuant to § 463-16A(2).
A post-construction site that meets any of the following criteria is exempt from the requirements of this article:
Notwithstanding the applicability requirements in § 463-16A(1), this article applies to post-construction sites of any size that, in the opinion of the administering authority, are likely to result in runoff that exceeds the safe capacity of the existing drainage facilities or receiving body of water, that causes undue channel erosion, that increases water pollution by scouring or the transportation of particulate matter, or that endangers property or public safety.
Jurisdiction. This article applies to post-construction sites within the boundaries and jurisdiction of the Town of Grand Chute.
Maintenance of effort. For a redevelopment site where the land disturbing construction activity will be replacing older development that was subject to post-construction performance standards of this article in effect on or after January 1, 2005, the responsible party shall meet either the water quality, peak discharge, infiltration, protective area, and petroleum sheen standards applicable to the older development or the redevelopment standards of this article, whichever are more stringent.
For the purposes of this article, the following shall apply as indicated throughout the article:
The present tense includes the future tense, and the singular includes plural.
The word "used" or "occupied" also means intended, designed or arranged to be used or occupied.
Definition of terms. For the purpose of this article, the following terms are defined:
A governmental employee or their designees empowered under § 60.627, Wis. Stats., to administer this article. For the purpose of this article, it is the Town of Grand Chute Community Development Department, under guidance from the Plan Commission.
Structural or nonstructural measures, practices, techniques or devices employed to avoid or minimize soil, sediment or pollutants carried in runoff to waters of the state. Also referred to as "BMPs."
A hypothetical discrete rainstorm characterized by a specific duration, temporal distribution, rainfall intensity, return frequency, and total depth of rainfall. The TP-40, Type II, twenty-four-hour design storms for the Town of Grand Chute are: one-year, 2.2 inches; two-year, 2.5 inches; five-year, 3.3 inches; ten-year, 3.8 inches; twenty-five-year, 4.4 inches; fifty-year, 4.9 inches; and one-hundred-year, 5.3 inches. The Atlas 14, MSE4, twenty-four-hour design storms for the Town of Grand Chute are: one-year, 2.14 inches; two-year, 2.45 inches; five-year, 3.01 inches; ten-year, 3.51 inches; twenty-five-year, 4.24 inches; fifty-year, 4.85 inches; and one-hundred-year, 5.50 inches.
The creation, from one or more parcels or building sites, of additional parcels or building sites where such creation occurs at one time or through the successive partition within a five-year period.
A stormwater detention facility with perennial vegetation growth in the pond bottom. Water levels located above the pond bottom and vegetation growth fluctuate in response to rainfall events. Dry ponds are used for flood control, but not water quality treatment.
Development in existence on January 1, 2005, or development for which a stormwater permit in accordance with Subchapter III of Ch. NR 216, Wis. Adm. Code, was received on or before January 1, 2005.
Soil that has at least a three-foot deep layer with at least twenty-percent fines; or at least a five-foot deep layer with at least ten-percent fines; or an engineered soil with an equivalent level of protection as determined by the administering authority for the site.
The point in time when all land disturbing construction activities at the construction site have been completed and that 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 that employ equivalent permanent stabilization measures.
Town Board of Supervisors, County Board of Supervisors, City Council, Village Board of Trustees, or Village Council.
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 surfaces that typically are impervious. Gravel surfaces are considered impervious, unless specifically designed and constructed to encourage infiltration.
Any land disturbing construction activity in which any new impervious surfaces are created or existing impervious surfaces are redeveloped.
An undeveloped area of land or new development area located within an existing urban sewer service area, surrounded by development or development and natural or man-made features where development cannot occur. Infill does not include any undeveloped area that was part of a larger new development for which a stormwater permit in accordance with Subchapter III of Ch. NR 216, Wis. Adm. Code, was required to be submitted after January 1, 2005, to the Wisconsin Department of Natural Resources or Wisconsin Department of Safety and Professional Services (formerly Department of Commerce).
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.
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 pollutants into the municipal separate storm sewer or waters of the state. Land disturbing construction activity includes clearing and grubbing, demolition, excavating, pit trench dewatering, filling and grading activities, and soil stockpiling. Also referred to as "disturbance."
The highest level of performance that is achievable, but not equivalent to a performance standard identified within this article. "Maximum extent practicable" applies when the permit applicant demonstrates to the administering authority's satisfaction that a performance standard is not achievable and that a lower level of performance is appropriate. In making the assertion that a performance standard is not achievable and that a level of performance different from the performance standard is the maximum extent practicable, the permit applicant shall take into account the best available technology, cost effectiveness, geographic features, and other competing interests such as protection of public safety and welfare, protection of endangered and threatened resources, and preservation of historic properties. Also referred to as "MEP."
Has the meaning given in § 30.01(4m), Wis. Stats.
The highest rate of stormwater flow that occurs at a specific location and for a specific storm event. Peak discharge is measured in cubic feet per second of stormwater flow.
The percentage of a given sample of soil that passes through a No. 200 sieve.
A written authorization by the administering authority to the applicant, granting permission to conduct land disturbing construction activity or to discharge post-construction runoff to waters of the state.
A sum of money paid to the administering authority by the permit applicant for the purpose of recovering the expenses incurred by the authority in administering the permit.
An area that releases as runoff a small portion of the precipitation that falls on it. Lawns, gardens, fields, parks, forests or other similar vegetated areas are examples of surfaces that typically are pervious.
A construction site after the completion of land disturbing construction activity and final site stabilization.
The extent and distribution of land cover types present after the completion of land disturbing construction activity and final site stabilization.
An area of land that commences at the top of the channel of lakes, streams and rivers, or at the delineated boundary of wetlands, as measured horizontally from the top of the channel or delineated wetland boundary to the closest impervious surface. For the purposes of this article, a protective area does not include any area of land adjacent to any stream enclosed within a pipe or culvert, such that runoff cannot enter the enclosure at this location.
That portion of a post-construction site where existing impervious surfaces from older development are being reconstructed, replaced, or reconfigured to accommodate new development. Any disturbance where the amount of impervious area for the post-development condition is equal to or less than the pre-development (existing) condition is classified as redevelopment. For purposes of this article, a post-construction site is classified as new development, redevelopment, routine maintenance, or some combination of these three classifications as appropriate.
Any entity holding fee title to a property or other person contracted or obligated by other agreement to implement and maintain post-construction stormwater BMPs.
Settleable solid material that is transported by runoff, suspended within runoff, or deposited by runoff away from its original location.
The entire area included in the legal description of the property on which the land disturbing construction activity occurred.
An order issued by the administering authority that requires all construction activity on the site be stopped.
A comprehensive plan designed to reduce the discharge of pollutants from stormwater following completion of the land disturbance construction activity and after the site has undergone final stabilization.
A performance standard that will apply in a specific area where additional practices beyond those contained in this article are necessary to meet water quality standards. A total maximum daily load is an example of a targeted performance standard.
The amount of pollutants specified as a function of one or more water quality parameters that can be discharged per day into a water quality limited segment and still ensure attainment of the applicable water quality standard. Also referred to as "TMDL."
The Technical Paper No. 40, Rainfall Frequency Atlas of the United States, published in 1961.
A public street, a public road, a public highway, a railroad, a public mass transit facility, a public-use airport, a public trail, or any other public work for transportation purposes such as harbor improvements under § 85.095(1)(b), Wis. Stats. Transportation facility does not include building sites for the construction of public buildings and buildings that are places of employment that are regulated by the Wisconsin Department of Natural Resources pursuant to § 281.33, Wis. Stats.
A stormwater detention facility with a permanent pool of water in the pond bottom. Water levels located above the permanent pool of water fluctuate in response to rainfall events. Wet ponds are used for flood control and potentially for water quality. Wet ponds are required to satisfy Code 1001 Wet Detention Pond Technical Standard to receive water quality credit.
Technical standards and guidance identified within the Town of Grand Chute Stormwater Reference Guide.
In this article, the following year and location has been selected as average annual rainfall(s): Green Bay, 1969 (March 29 through November 25).
Safety standards in addition to Ch. NR 151, Wis. Adm. Code. The following additional standards shall apply to any wet pond constructed on a parcel or site located in a residential zoning district or adjoining a residential zoning district, a school, day-care facility, or similar use:
To achieve water quality and peak discharge requirements, the applicant may use a wet pond design as a stormwater treatment facility. The wet pond design shall meet the following safety specifications:
Side slope to wet pond of 4:1 or flatter.
Underwater safety shelf measuring eight feet wide or more with an average water depth of less than 18 inches.
Vegetation or plantings installed in the safety shelf and side slope in accordance with Town specifications and policies.
Grating covers for all structure inlets and outlets greater than six inches in size.
The stormwater treatment facility maintenance plan shall identify the maintenance procedures for the vegetation so as to discourage access to the wet pond.
If an applicant for a post-construction runoff permit cannot meet both the water quality and peak discharge standards and also the wet pond safety specifications described herein, the applicant shall at a minimum meet the water quality and peak discharge standards and submit a wet pond safety report. This report shall identify any variance from the safety specifications and identify any supplemental safety features that are incorporated into the design of the wet pond as a result. An applicant is not required to erect a fence around a wet pond; however, the applicant may include a fence in the safety features for the facility design. Any fence to be constructed as a wet pond safety feature shall be subject to the provisions of § 535-53 of the Town of Grand Chute Municipal Code and of Chapter 40 of the Outagamie County Code of Ordinances.
Ponds created for purposes other than stormwater management are exempt from this article.
Plan. A written stormwater management plan shall be developed and implemented by the responsible party in accordance with § 463-21 of this article, and shall meet all other applicable requirements contained herein.
Water quality. BMPs shall be designed, installed and maintained to control pollutants carried in runoff from the post-construction site. The design shall be based on the average annual rainfall, as compared to no runoff management controls.
The following is required for a post-construction site adding 4,000 square feet or more of new impervious surfaces, and/or a site with one acre or more of land disturbance.
Except as provided in § 463-19C(1)(a)[2], a pollutant reduction is required as follows:
Sites, including common plan of development sites, with a cumulative addition of 20,000 square feet or greater of impervious surfaces after January 1, 2005, are required to satisfy the performance standards pursuant to § 463-19C(1)(a)[1] and [2].
When designing BMPs, runoff draining to the BMP from off-site areas shall be taken into account in determining the treatment efficiency of the practice. Any impact on the BMP efficiency shall be compensated for by increasing the size of the BMP accordingly. The pollutant load reduction provided by the BMP for an off-site area shall not be used to satisfy the required on-site pollutant load reduction unless otherwise approved by the administering authority, in accordance with § 463-19E of this article.
If the design cannot meet the water quality performance standards of § 463-19C(1)(a) through (d), the stormwater management plan shall include a written, site-specific explanation of why the water quality performance standards cannot be met and why the pollutant load will be reduced only to the maximum extent practicable. Except as provided in § 463-19F, the administering authority may not require any person to exceed the applicable water quality performance standards to meet the requirements of maximum extent practicable.
The following is required for a post-construction site adding 4,000 square feet or more of new impervious surfaces, and/or a site with one acre or more of land disturbance:
For a post-construction site adding less than 20,000 square feet of new impervious surface, the peak post-development discharge rate shall not exceed the peak pre-development discharge rate for the one-year and two-year, twenty-four-hour design storms. For a post-construction site adding 20,000 square feet or more of new impervious surface and/or a post-construction site with one acre or more of land disturbance, the peak post-development discharge rate shall not exceed the peak pre-development discharge rate for the one-year, two-year, ten-year, and one-hundred-year, twenty-four-hour design storms.
Peak discharge control is not required for routine maintenance areas, except when runoff from the routine maintenance area discharges into a proposed peak flow control facility.
Peak discharge calculations shall use TR-55 methodology. Atlas 14 rainfall depths and the MSE4 rainfall distribution shall be used unless the site is to be served by a previously constructed peak discharge facility. At the permittee's discretion, the TP-40 rainfall depths and the Type II rainfall distribution can be used for sites that are to be served by a previously constructed peak discharge facility. The meaning of "hydrologic soil group" and "runoff curve number" are as determined in TR-55. Unless the site is currently woodland, peak pre-development discharge rates shall be determined using the following runoff curve numbers for a meadow vegetative cover:
Sites with a cumulative addition of 20,000 square feet or greater of impervious surfaces after January 1, 2005, are required to satisfy the performance standards pursuant to § 463-19C(2)(a)[1] through [3].
When designing BMPs, runoff draining to the BMP from off-site areas shall be taken into account in determining the performance of the practice. Any impact on the BMP performance shall be compensated for by increasing the size of the BMP accordingly. The peak discharge reduction provided by the BMP for an off-site area shall not be used to satisfy the required on-site peak discharge reduction unless otherwise approved by the administering authority in accordance with § 463-19E of this article.
An adequate outfall shall be provided for each point of concentrated discharge from the post-construction site and shall consist of:
Nonerosive discharge velocities and reasonable downstream conveyance.
Discharge to the municipal separate storm sewer system, waters of the state, or an appropriate drainage easement. If a site is not able to meet this requirement, an adequate outfall may be permitted if it diffuses the discharge within the site boundary in accordance with the Town of Grand Chute Stormwater Reference Guide.
New development sites that discharge into direct conduits to groundwater shall be designed in conformance with Chapter 38 of the Outagamie County Code of Ordinances.
New development sites located near a closed depression and/or flood-prone area shall be designed to provide a minimum one foot of vertical separation between the lowest ground surface elevation at the building's perimeter and the overland relief elevation for the flood-prone area. Outagamie County and the Town of Grand Chute maintain a flood-prone area map to assist with identifying higher risk areas. If less than one foot of vertical separation is provided, a detailed stormwater analysis shall be performed to identify and reasonably manage one-hundred-year flooding risks for buildings or structures located within the flood-prone area.
Agricultural production areas shall meet the intent of this article by following the BMPs listed in the Town of Grand Chute Stormwater Reference Guide.
Exemptions. The peak discharge performance standards described herein do not apply to the following:
A transportation facility where the discharge is directly into a lake of over 5,000 acres or a stream or river segment draining more than 500 square miles.
Except as provided in § 463-19C(2)(c) through (e), a highway reconstruction site.
Except as provided in § 463-19C(2)(c) through (e), a transportation facility that is part of a redevelopment project.
Infiltration. BMPs shall be designed, installed, and maintained to infiltrate runoff from the post-construction site, except as provided in § 463-19C(3)(h) through (l) of this article.
The following is required for a post-construction site with one acre or more of land disturbance:
Low imperviousness. For development with up to 40% connected imperviousness, such as parks, cemeteries, and low-density residential development, infiltrate sufficient runoff volume so that the post-development infiltration volume shall be at least 90% of the pre-development infiltration volume, based on an average annual rainfall. However, when designing appropriate infiltration systems to meet this requirement, no more than 1% of the post-construction site is required as an effective infiltration area.
Moderate imperviousness. For development with more than 40% and up to 80% connected imperviousness, such as medium- and high-density residential, multifamily development, industrial and institutional development, and office parks, infiltrate sufficient runoff volume so that the post-development infiltration volume shall be at least 75% of the pre-development infiltration volume, based on an average annual rainfall. However, when designing appropriate infiltration systems to meet this requirement, no more than 2% of the post-construction site is required as an effective infiltration area.
High imperviousness. For development with more than 80% connected imperviousness, such as commercial districts and retail centers, infiltrate sufficient runoff volume so that the post-development infiltration volume shall be at least 60% of the pre-development infiltration volume, based on an average annual rainfall. However, when designing appropriate infiltration systems to meet this requirement, no more than 2% of the post-construction site is required as an effective infiltration area.
Pre-development condition shall assume good hydrologic conditions for appropriate land covers as identified in TR-55 or an equivalent methodology approved by the administering authority. The meaning of "hydrologic soil group" and "runoff curve number" are as determined in TR-55. The actual pre-development vegetative cover and the following pre-development runoff curve numbers shall be used:
Sites with a cumulative addition of 20,000 square feet or greater of impervious surfaces after January 1, 2005, are required to satisfy the performance standards pursuant to § 463-19C(3)(a) and (b) of this article.
Agricultural production areas shall infiltrate runoff volume using BMPs from the Town of Grand Chute Stormwater Reference Guide.
When designing BMPs, runoff draining to the BMP from off-site areas shall be taken into account in determining the performance of the practice. Any impact on the BMP performance shall be compensated for by increasing the size of the BMP accordingly. The runoff volume reduction provided by the BMP for an off-site area shall not be used to satisfy the required on-site runoff volume reduction unless otherwise approved by the administering authority, in accordance with § 463-19E of this article.
Pretreatment. Before infiltrating runoff, pretreatment shall be required for parking lot runoff and for runoff from road construction in commercial, industrial and institutional areas that will enter an infiltration system. The pretreatment shall be designed to protect the infiltration system from clogging prior to scheduled maintenance and to protect groundwater quality in accordance with § 463-19C(3)(n). Pretreatment options may include, but are not limited to, oil/grease separation, sedimentation, biofiltration, filtration, swales or filter strips.
Source area prohibitions. Runoff from the following areas may not be infiltrated and may not qualify as contributing toward meeting the requirements of § 463-19C(3), unless demonstrated to meet the conditions of § 463-19C(3)(n):
Areas associated with a Tier 1 industrial facility, as identified in § NR 216.21(2)(a), Wis. Adm. Code, including storage, loading, and parking. Rooftops may be infiltrated with the concurrence of the administering authority.
Storage and loading areas of a Tier 2 industrial facility, as identified in § NR 216.21(2)(b), Wis. Adm. Code.
Source area exemptions. Runoff from the following areas may be credited by the administering authority toward meeting the requirement when infiltrated, but the decision to infiltrate runoff from these sources is optional:
Parking areas and access roads of less than 5,000 square feet for commercial development.
Parking areas and access roads of less than 5,000 square feet for industrial development not subject to the prohibitions in § 463-19C(3)(h) of this article.
Except as provided in § 463-19C(3)(d), redevelopment and routine maintenance areas.
Infill development areas of less than five acres.
Except as provided in § 463-19C(3)(d), transportation facilities, highway reconstruction and new highways.
Areas within 400 feet of a community water system well as specified in § NR 811.16(4), Wis. Adm. Code, or within the separation distances listed in § NR 812.08, Wis. Adm. Code, for any private well or noncommunity well for runoff infiltrated from commercial development, including multifamily residential, industrial, and institutional land uses, or regional devices for one- and two-family residential development.
Notwithstanding the provisions in § 463-19C(3)(k)[1], applicable requirements for injection wells classified under Ch. NR 815, Wis. Adm. Code, shall be followed.
Infiltration rate exemptions. Infiltration practices located in the following areas may be credited by the administering authority toward meeting the requirement under the following conditions, but the decision to infiltrate runoff under these conditions is optional:
Where the infiltration rate of the soil measured at the proposed bottom of the infiltration system is less than 0.6 inch per hour, using a scientifically credible field test method.
Where the least permeable soil horizon to five feet below the proposed bottom of the infiltration system, using the United States Department of Agriculture method of soils analysis, is one of the following: sandy clay loam, clay loam, silty clay loam, sandy clay, silty clay, or clay.
Alternate uses. Where alternate uses of runoff are employed, such as for toilet flushing, laundry, irrigation, or storage on green roofs where an equivalent portion of the runoff is captured permanently by rooftop vegetation, such alternate use shall be given equal credit toward the infiltration volume required in § 463-19C(3) of this article.
Infiltration systems designed in accordance with § 463-19C(3) shall, to the extent technically and economically feasible, minimize the level of pollutants infiltrating to groundwater and shall maintain compliance with the preventive action limit at a point of standards application in accordance with Ch. NR 140, Wis. Adm. Code. However, if site-specific information indicates that compliance with a preventive action limit is not achievable, the infiltration BMP may not be installed or shall be modified to prevent infiltration to the maximum extent practicable.
Notwithstanding the provisions in § 463-19C(3)(n)[1], the discharge from BMPs shall remain below the enforcement standard at the point of standards application.
Where the requirements in § 463-19C(3)(h) through (l) limit or restrict the use of infiltration practices, the performance standards pursuant to § 463-19C(3) shall be met to the maximum extent practicable.
Protective areas are required adjacent to the following natural features, at the widths specified herein:
For highly susceptible wetlands: 75 feet. Highly susceptible wetlands include the following types: calcareous fens, sedge meadows, open and coniferous bogs, low prairies, coniferous swamps, lowland hardwood swamps, and ephemeral ponds.
For less susceptible wetlands: 10% of the average wetland width, but no less than 10 feet nor more than 30 feet. Less susceptible wetlands include: degraded wetlands dominated by invasive species such as reed canary grass; cultivated hydric soils; and any gravel pits, or dredged material or fill material disposal sites that take on the attributes of a wetland.
For all other wetlands not subject to the characterization in § 463-19C(4)(a)[4] or [5]: 50 feet.
Notwithstanding the provisions in § 463-19C(4)(a)[1] through [7], the greatest protective area width shall apply where rivers, streams, lakes, and wetlands are contiguous.
Wetlands shall be delineated. Wetland boundary delineations shall be made in accordance with § NR 103.08(1m), Wis. Adm. Code. The wetland delineator shall be approved by the administering authority. The requirements in § 463-19C(4) do not apply to wetlands that have been completely filled in compliance with all applicable state and federal regulations. The protective area for wetlands that have been partially filled in compliance with all applicable state and federal regulations shall be measured from the wetland boundary delineation after fill has been placed. Where there is a legally authorized wetland fill, the protective area standard need not be met in that location.
Determinations of the extent of the protective area adjacent to wetlands shall be made on the basis of the sensitivity and runoff susceptibility of the wetland, in accordance with the standards and criteria in § NR 103.03, Wis. Adm. Code.
The requirements in § 463-19C(4) apply to all post-construction sites located within a protective area, except those areas exempted pursuant to § 463-19C(4)(g) in this article.
The following protective area requirements shall be met:
Where land disturbing construction activity occurs within a protective area, adequate sod or self-sustaining vegetative cover of 70% or greater shall be established and maintained in areas where no impervious surface is present. The adequate sod or self-sustaining vegetative cover shall be sufficient to provide for bank stability, maintenance of fish habitat, and filtering of pollutants from upslope overland flow areas under sheet flow conditions. Nonvegetative materials, such as rock riprap, may be employed on the bank as necessary to prevent erosion, such as on steep slopes or where high velocity flows occur.
BMPs such as filter strips, swales, or wet detention ponds, which are designed to control pollutants from nonpoint sources, may be located in the protective area.
A protective area established or created after January 1, 2005, shall not be eliminated or reduced, except as allowed in § 463-19C(4)(g)[2], [3], or [4] in this article.
Exemptions. The following areas are not required to meet the protective area requirements in § 463-19C(4):
Redevelopment and routine maintenance areas, provided the minimum requirements in § 463-19C(4)(f) are satisfied.
Areas of post-construction sites from which the runoff does not enter the surface water, including wetlands, without first being treated by a BMP to meet the requirements of § 463-19C(1) and (2), except to the extent that vegetative ground cover is necessary to maintain bank stability.
Notwithstanding the provisions in § 535-53 of the Town of Grand Chute Municipal Code and Chapter 40 of the Outagamie County Code of Ordinances, the construction of a fence on a property zoned or used for single-family residential or two-family residential purposes is not required to meet the protective area requirements in § 463-19C(4)(a)[4] through [6]; however, any such fence shall be constructed and placed a minimum distance of one foot from any wetland boundary delineation.
Swale treatment for transportation facilities. Except for transportation facilities that are part of a larger common plan of development or sale, the following requirements shall be met:
Requirement. Except as provided in § 463-19C(6)(b), transportation facilities that use swales for runoff conveyance and pollutant removal are exempt from the requirements of § 463-19C(1) through (3), if the swales are designed to do all of the following, or to the maximum extent practicable:
Other requirements. Notwithstanding the requirements in § 463-19C(6)(a), the administering authority may, consistent with water quality standards, determine that other requirements, in addition to swale treatment, be met on a transportation facility with an average daily traffic rate greater than 2,500 and where the initial surface water of the state at which the runoff directly enters is any of the following:
Exemptions. The following areas are not required to meet the performance standards in § 463-19C:
The following transportation facilities are exempt, provided the transportation facility is not part of a larger common plan of development or sale.
A transportation facility post-construction site with less than ten-percent connected imperviousness, based on the area of land disturbance, provided the cumulative area of all impervious surfaces is less than one acre. Notwithstanding this exemption, the protective area requirements in § 463-19C(4) still apply.
Minor reconstruction of a highway. Notwithstanding this exemption, the protective area requirements in § 463-19C(4) still apply.
Routine maintenance, if performed for stormwater conveyance system cleaning.
General considerations. The following considerations for on-site and off-site stormwater management measures shall be observed in managing runoff:
BMP location and credit.
General. To comply with the performance standards in § 463-19C, the BMPs may be located on site or off site as part of a regional stormwater device, practice or system.
The amount of credit that the administering authority may give an off-site or regional BMP for purposes of determining compliance with the performance standards in § 463-19C is limited to the treatment capability or performance of the BMP.
The administering authority may authorize credit for an off-site or regional BMP, provided all of the following conditions are satisfied:
The BMP shall be designed and adequately sized to provide a level of stormwater control equal to or greater than that which would be afforded by on-site BMPs meeting the performance standards in § 463-19C of this article.
The owner of the BMP has entered into a maintenance agreement with the administering authority, as provided in § 463-22, such that the BMP has a legally obligated entity responsible for its long-term operation and maintenance. Legal authority exists if a municipality owns, operates and maintains the BMP.
The owner of the BMP has provided written authorization that indicates the permittee may use the BMP in compliance with the performance standards in § 463-19C of this article.
Where an off-site or regional BMP option exists such that the administering authority exempts the owner from meeting all or part of the minimum on-site stormwater management requirements, the owner shall be required to pay a fee in an amount determined in negotiation with the administering authority. In determining the fee for post-construction runoff, the administering authority shall consider an equitable distribution of the cost for land, engineering design, construction, and maintenance of the off-site or regional BMP.
BMP in nonnavigable waters. For purposes of determining compliance with the performance standards in § 463-19C, the administering authority may give credit for BMPs that function to provide treatment for runoff from existing development and post-construction runoff from new development, redevelopment, and routine maintenance areas and that are located within nonnavigable waters.
BMP in navigable waters.
New development runoff. Except as provided in § 463-19E(4)(b), BMPs designed to treat post-construction runoff from new development areas may not be located in navigable waters, and for purposes of determining compliance with the performance standards in § 463-19C, the administering authority may not give credit for such BMPs.
New development runoff exemption. BMPs designed to treat post-construction runoff from new development areas may be located within navigable waters and may be creditable by the administering authority under the provisions in § 463-19C, if both of the following conditions are met:
Existing development and post-construction runoff from redevelopment, routine maintenance, and infill development areas. Except as provided in § 463-19E(4)(d), BMPs designed to treat post-construction runoff for existing development and post-construction runoff from redevelopment, routine maintenance and infill development areas may not be located in navigable waters, and for purposes of determining compliance with the performance standards in § 463-19C, the administering authority may not give credit for such BMPs.
Existing development and post-construction runoff from redevelopment, routine maintenance, and infill development areas exemption. BMPs that function to provide treatment of runoff from existing development and post-construction runoff from redevelopment, routine maintenance and infill development areas may be located within navigable waters, and for purposes of determining compliance with the performance standards in § 463-19C, the administering authority may give credit for such BMPs, if either of the following are met:
The BMP was constructed, contracts were signed or bids were advertised and all applicable permits were received prior to January 1, 2011.
Water quality trading. To comply with the performance standards in § 463-19C(1), the administering authority may authorize credit for water quality trading, provided all of the following conditions are satisfied:
The water quality trade shall comply with applicable trading ratios established by the Wisconsin Department of Natural Resources or the Town of Grand Chute.
The water quality trade shall comply with applicable regulations, standards, and guidance developed by the Wisconsin Department of Natural Resources or the Town of Grand Chute.
Targeted performance standards. The administering authority may establish numeric water quality requirements that are more stringent than those set forth in § 463-19C in order to meet targeted performance standards, total maximum daily loads, and/or water quality standards for a specific water body or area. The numeric water quality requirements may be applicable to any permitted site, regardless of the size of land disturbing construction activity.
Alternate requirements. The administering authority may establish stormwater management requirements more stringent than those set forth in this article if the administering authority determines that an added level of protection is needed to protect sensitive resources. Also, the administering authority may establish stormwater management requirements less stringent than those set forth in this article if the administering authority determines that less protection is needed to protect sensitive resources and provide reasonable flood protection. However, the alternative requirements shall not be less stringent than those requirements promulgated in rules by Wisconsin Department of Natural Resources Ch. NR 151, Wis. Adm. Code. The established additional requirements shall be provided to the applicant in writing.
Permit required. No responsible party may undertake a land disturbing construction activity without receiving a post-construction runoff permit from the administering authority prior to commencing the proposed activity.
The stormwater management plan shall be prepared to meet the requirements in §§ 463-19 and 463-21; the maintenance agreement shall be prepared to meet the requirements in § 463-22; the financial guarantee shall meet the requirements in § 463-23; and fees shall be those established by the Town of Grand Chute Board as set forth in § 463-24 of this article.
If the stormwater permit application, plan and maintenance agreement are approved, or if an agreed-upon payment of fees in lieu of stormwater management practices is made pursuant to § 463-19E, the administering authority shall issue the permit.
If the stormwater permit application, plan or maintenance agreement is disapproved, the administering authority shall detail, in writing, the reasons for disapproval.
The administering authority may request additional information from the applicant. If additional information is submitted, the administering authority shall inform the applicant that the plan and maintenance agreement are either approved or disapproved.
Permit requirements. All permits issued under this article shall be subject to the following conditions, and holders of permits issued under this article shall be deemed to have accepted these conditions. The administering authority may suspend or revoke a permit for violation of a permit condition, following written notification to the responsible party. An action by the administering authority to suspend or revoke this permit may be appealed in accordance with the provisions in § 463-26 of this article.
Compliance with this permit does not relieve the responsible party of the obligation to comply with all other applicable federal, state, and local laws and regulations.
The responsible party shall notify the administering authority at least 10 business days before commencing any work in conjunction with the stormwater management plan and within 10 business days upon completion of the stormwater management practices. If required as a special condition pursuant to § 463-20E, the responsible party shall make additional notification according to a schedule set forth by the administering authority so that practice installations can be inspected during construction.
Practice installations required as part of this article shall be certified "as built" by a licensed professional engineer. Completed stormwater management practices must pass a final inspection by the administering authority or its designee to determine if they are in accordance with the approved stormwater management plan and this article. The administering authority or its designee shall notify the responsible party, in writing, of any changes required in such practices to bring them into compliance with the conditions of this permit.
The responsible party shall inspect BMPs annually and after runoff events in accordance with the stormwater management plan and maintenance agreement. The responsible party shall have a licensed professional engineer submit a stamped written inspection report to the administering authority for review and approval every five years. All written inspection reports prepared by the responsible party shall accompany the stamped report prepared by the licensed professional engineer.
The responsible party shall maintain all stormwater management practices in accordance with the stormwater management plan until the practices either become the responsibility of the Town of Grand Chute or are transferred to subsequent private owners as specified in the approved maintenance agreement.
The responsible party authorizes the administering authority to perform any work or operations necessary to bring stormwater management measures into conformance with the approved stormwater management plan and consents to a special assessment or charge against the property as authorized under the provisions in § 463-23 of this article.
If so directed by the administering authority, the responsible party shall repair, at the responsible party's own expense, all damage to adjoining municipal facilities and drainageways caused by runoff, where such damage is caused by activities that are not in compliance with the approved stormwater management plan.
The responsible party is subject to the enforcement actions and penalties provided in § 463-25 if the responsible party fails to comply with the terms of this permit.
Permit conditions. Permits issued under this subsection may include conditions established by the administering authority, in addition to the performance standards in § 463-19 or the financial guarantee requirements pursuant to § 463-23.
Permit duration. Permits issued under this subsection shall be valid from the date of issuance through the date the administering authority notifies the responsible party that all stormwater management practices have passed the final inspection required under the provisions in § 463-20D(4) of this article.
Alternate requirements. The administering authority may prescribe alternative requirements for applicants seeking an exemption from the on-site stormwater management performance standards in § 463-19E, or for applicants seeking a permit for a post-construction site with less than 20,000 square feet of impervious surface disturbance.
Plan requirements. The stormwater management plan required under the provisions in §§ 463-19B and 463-20B shall comply with the Town of Grand Chute Stormwater Reference Guide and contain at a minimum the following information:
Alternate requirements. The administering authority may prescribe alternative submittal requirements for applicants seeking an exemption from the on-site stormwater management performance standards in § 463-19E or for applicants seeking a permit for a post-construction site with less than 20,000 square feet of impervious surface disturbance.
Maintenance agreement required. The maintenance agreement required under the provisions in § 463-20B for stormwater management practices shall be an agreement between the Town of Grand Chute and the responsible party to provide for maintenance of stormwater practices beyond the duration period of a post-construction runoff permit. The maintenance agreement shall be filed with the Outagamie County Register of Deeds as a property deed restriction so that it is binding upon all subsequent owners of the land served by the stormwater management practices.
Agreement provisions. The maintenance agreement shall contain the following information and provisions and be consistent with the plan required under the provisions in § 463-20B:
A schedule for regular maintenance of each aspect of the stormwater management system consistent with the stormwater management plan required under the provisions in § 463-20B.
Identification of the responsible party(ies), organization or city, county, town or village responsible for long-term maintenance of the stormwater management practices identified in the stormwater management plan required under the provisions in § 463-20B.
Requirement that the responsible party(ies), organization, or city, county, town or village shall maintain stormwater management practices in accordance with the schedule required under the provisions in § 463-22B(2).
Agreement that the party designated as responsible for long-term maintenance of the stormwater management practices shall be notified by the administering authority of maintenance problems which require correction. The specified corrective actions shall be undertaken within a reasonable time frame as set by the administering authority.
Authorization of the administering authority to perform the corrected actions identified in the inspection report if the party designated as responsible for long-term maintenance of the stormwater management practices does not make the required corrections in the specified time period. The administering authority shall enter the amount due on the tax rolls and collect the money as a special charge against the property, pursuant to Subchapter VII of Ch. 66, Wis. Stats.
Alternate requirements. The administering authority may prescribe alternative requirements for applicants seeking an exemption from the on-site stormwater management performance standards in § 463-19E or for applicants seeking a permit for a post-construction site with less than 20,000 square feet of impervious surface disturbance.
Establishment of the guarantee. The administering authority may require the submittal of a financial guarantee, the form and type of which shall be acceptable to the administering authority. The financial guarantee shall be in an amount determined by the administering authority to be the estimated cost of construction and the estimated cost of maintenance of the stormwater management practices during the period which the designated party in the maintenance agreement has maintenance responsibility. The financial guarantee shall grant the administering authority the authorization to use the funds to complete the stormwater management practices, if the responsible party defaults or does not properly implement the approved stormwater management plan, upon written notice to the responsible party by the administering authority that the requirements of this article have not been met.
The administering authority shall release the portion of the financial guarantee established under this section, less any costs incurred by the administering authority to complete installation of practices, upon submission of as-built plans by a licensed professional engineer. The administering authority may make provisions for a partial pro-rata release of the financial guarantee based on the completion of various development stages.
Fees referred to in this article shall be established by the Town of Grand Chute Board and may be modified from time to time. A schedule of the fees established by the Town Board shall be available for review upon request.
Any land disturbing construction activity or post-construction runoff initiated after the effective date of this article by any person, firm, association, or corporation subject to the article provisions shall be deemed a violation, unless conducted in accordance with the requirements of this article.
The administering authority shall notify the responsible party by certified mail of any noncomplying land disturbing construction activity or post-construction runoff. The notice shall describe the nature of the violation, remedial actions needed, a schedule for remedial action, and additional enforcement action which may be taken.
Upon receipt of written notification from the administering authority pursuant to § 463-25B, the responsible party shall correct work that does not comply with the stormwater management plan or other provisions of a post-construction runoff permit. The responsible party shall make corrections as necessary to meet the specifications and schedule set forth in the notice.
If the violations to a permit issued pursuant to this article are likely to result in damage to properties, public facilities, or waters of the state, the administering authority may enter the land and take emergency actions necessary to prevent such damage. The costs incurred by the administering authority, plus interest and legal costs, shall be billed to the responsible party.
The administering authority is authorized to post a stop-work order on all land disturbing construction activity that is in violation of this article or to request that the Town Attorney obtain a cease-and-desist order in any court with jurisdiction.
The administering authority is authorized to refer any violation of this article, or any stop-work order or cease-and-desist order issued pursuant to this article, to the Town Attorney for the commencement of further legal proceedings in any court with jurisdiction.
Any person, firm, association, or corporation who does not comply with the provisions of this article shall be subject to a forfeiture as provided in the Uniform Forfeiture and Bond Schedules per offense, together with the costs of prosecution. Each day that the violation exists shall constitute a separate offense.
When the administering authority determines that the holder of a permit issued pursuant to this article has failed to follow practices set forth in the stormwater management plan, or has failed to comply with schedules set forth in said stormwater management plan, the administering authority or a party designated by the administering authority may enter upon the land and perform the work or other operations necessary to bring the condition of said lands into conformance with requirements of the approved plan. The administering authority shall keep a detailed accounting of the costs and expenses of performing this work. These costs and expenses shall be deducted from any financial security posted pursuant to § 463-23 of this article. Where such a security has not been established, or where such a security is insufficient to cover these costs, the costs and expenses shall be entered on the tax roll as a special charge against the property and collected with any other taxes levied thereon.
Appeals. The Town of Grand Chute Plan Commission, created pursuant to § 16-2 of The Town of Grand Chute Municipal Code, shall hear and decide appeals where it is alleged that there is error in any order, decision or determination made by the administering authority in administering this article. The Plan Commission shall also use the rules, procedures, duties, and powers authorized by statute in hearing and deciding appeals. Upon appeal, the Plan Commission may authorize variances from the provisions of this article that are not contrary to the public interest and where owing to special conditions a literal enforcement of the article will result in unnecessary hardship.
Who may appeal. Appeals to the Plan Commission may be taken by any aggrieved person or by an officer, department, board, or bureau of the Town of Grand Chute affected by any decision of the administering authority.
In any particular case where a landowner can show that, by reason of exceptional topography or other physical condition, strict compliance with any requirement of this article would cause unnecessary hardship, the Plan Commission may grant a variance from the provisions of this article, provided such relief may be granted without detriment to the public good and without impairing the intent and purpose of this article or the desirable general development of the Town of Grand Chute. No variance shall be granted by the Plan Commission that is contrary to provisions of the Wisconsin Administrative Code or the Wisconsin Statutes.
Nothing in this article creates or imposes, nor shall be construed to create or impose, any greater obligation or responsibility on the Town of Grand Chute than those minimum requirements specifically required by State of Wisconsin Statutes and Department of Natural Resources regulations.