[HISTORY: Adopted by the Town Board of the Town of Mount Pleasant 2-28-2006 by L.L. No. 1-2006. Amendments noted where applicable.]
Building construction administration — See Ch. 68.
Excavations and topsoil removal — See Ch. 96.
Flood damage prevention — See Ch. 108.
Freshwater wetlands — See Ch. 111.
Illicit storm sewer discharges and connections — See Ch. 124.
Sewers — See Ch. 172.
Water — See Ch. 211.
Zoning — See Ch. 218.
It is hereby determined that:
Land development activities and associated increases in site impervious cover often alter the hydrologic response of local watersheds and increase stormwater runoff rates and volumes, flooding, stream channel erosion, or sediment transport and deposition;
This stormwater runoff contributes to increased quantities of water-borne pollutants, including siltation of aquatic habitat for fish and other desirable species;
Clearing and grading during construction tend to increase soil erosion and add to the loss of native vegetation necessary for terrestrial and aquatic habitat;
Improper design and construction of stormwater management practices can increase the velocity of stormwater runoff, thereby increasing streambank erosion and sedimentation;
Impervious surfaces allow less water to percolate into the soil, thereby decreasing groundwater recharge and stream baseflow;
Substantial economic losses can result from these adverse impacts on the waters of the municipality;
Stormwater runoff, soil erosion and nonpoint source pollution can be controlled and minimized through the regulation of stormwater runoff from land development activities;
The regulation of stormwater runoff discharges from land development activities in order to control and minimize increases in stormwater runoff rates and volumes, soil erosion, stream channel erosion, and nonpoint source pollution associated with stormwater runoff is in the public interest and will minimize threats to public health and safety;
Regulation of land development activities by means of performance standards governing stormwater management and site design will produce development compatible with the natural functions of a particular site or an entire watershed and thereby mitigate the adverse effects of erosion and sedimentation from development.
The purpose of this chapter is to establish minimum stormwater management requirements and controls to protect and safeguard the general health, safety and welfare of the public residing within this jurisdiction and to address the findings of fact herein. This chapter seeks to meet those purposes by achieving the following objectives:
Meet the requirements of minimum measures 4 and 5 of the SPDES General Permit for Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s), Permit No. GP-02-02, or as amended or revised;
Require land development activities to conform to the substantive requirements of the NYS Department of Environmental Conservation State Pollutant Discharge Elimination System (SPDES) General Permit for Construction Activities GP-02-01, or as amended or revised;
Minimize increases in stormwater runoff from land development activities in order to reduce flooding, siltation, increases in stream temperature, and streambank erosion and maintain the integrity of stream channels;
Minimize increases in pollution caused by stormwater runoff from land development activities which would otherwise degrade local water quality;
Minimize the total annual volume of stormwater runoff which flows from any specific site during and following development to the maximum extent practicable; and
Reduce stormwater runoff rates and volumes, soil erosion and nonpoint source pollution, wherever possible, through stormwater management practices and ensure that these management practices are properly maintained and eliminate threats to public safety.
In accordance with § 10 of the Municipal Home Rule Law of the State of New York, the Town Board of the Town of Mount Pleasant has the authority to enact local laws and amend local laws and for the purpose of promoting the health, safety or general welfare of the Town of Mount Pleasant and for the protection and enhancement of its physical environment. The Town Board of the Town of Mount Pleasant may include in any such local law provisions for the appointment of any municipal officer, employees, or independent contractor to effectuate, administer and enforce such local law.
This chapter shall be applicable to all land development activities as defined in this chapter.
The municipality shall designate a Stormwater Management Officer who shall accept and review all stormwater pollution prevention plans and forward such plans to the applicable municipal board. The Stormwater Management Officer may:
Review the plans;
Upon approval by the Town Board of the Town of Mount Pleasant, engage the services of a registered professional engineer to review the plans, specifications and related documents at a cost not to exceed a fee schedule established by said governing board; or
Accept the certification of a licensed professional that the plans conform to the requirements of this chapter.
All land development activities subject to review and approval by the applicable Board of the Town of Mount Pleasant under subdivision, site plan, and/or special permit regulations shall be reviewed subject to the standards contained in this chapter.
The following activities may be exempt from review under this chapter.
Agricultural activity as defined in this chapter.
Silvicultural activity, except that landing areas and log haul roads are subject to this chapter.
Routine maintenance activities that disturb less than five acres and are performed to maintain the original line and grade, hydraulic capacity or original purpose of a facility.
Repairs to any stormwater management practice or facility deemed necessary by the Stormwater Management Officer.
Any part of a subdivision if a plat for the subdivision has been approved on or before the effective date of this chapter.
Land development activities for which a building permit has been approved on or before the effective date of this chapter.
Installation of fence, sign, telephone, and electric poles and other kinds of posts or poles.
Emergency activity immediately necessary to protect life, property or natural resources.
Activities of an individual engaging in home gardening by growing flowers, vegetables and other plants primarily for use by that person and his or her family.
Landscaping and horticultural activities in connection with an existing structure.
The terms used in this chapter or in documents prepared or reviewed under this chapter shall have the meanings set forth in this section:
- AGRICULTURAL ACTIVITY
- The activity of an active farm, including grazing and watering livestock, irrigating crops, harvesting crops, using land for growing agricultural products, and cutting timber for sale, but shall not include the operation of a dude ranch or similar operation or the construction of new structures associated with agricultural activities.
- A property owner or agent of a property owner who has filed an application for a land development activity.
- Any structure, either temporary or permanent, having walls and a roof, designed for the shelter of any person, animal, or property and occupying more than 100 square feet of area.
- A natural or artificial watercourse with a definite bed and banks that conducts continuously or periodically flowing water.
- Any activity that removes the vegetative surface cover.
- The deliberate appropriation of property by its owner for general public use.
- The New York State Department of Environmental Conservation.
- DESIGN MANUAL
- The New York State Stormwater Management Design Manual, most recent version, including applicable updates, which serves as the official guide for stormwater management principles, methods and practices.
- A person who undertakes land development activities.
- EROSION CONTROL MANUAL
- The most recent version of the New York Standards and Specifications for Erosion and Sediment Control manual, commonly known as the "Blue Book."
- Excavation or fill of material, including the resulting conditions thereof.
- IMPERVIOUS COVER
- Those surfaces, improvements and structures that cannot effectively be infiltrated by rainfall, snowmelt and water (e.g., building rooftops, pavement, sidewalks, driveways, etc.).
- INDUSTRIAL STORMWATER PERMIT
- A State Pollutant Discharge Elimination System permit issued to a commercial industry or group of industries which regulates the pollutant levels associated with industrial stormwater discharges or specifies on-site pollution control strategies.
- The process of percolating stormwater into the subsoil.
- JURISDICTIONAL WETLAND
- An area that is inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence of vegetation typically adapted for life in saturated soil conditions, commonly known as "hydrophytic vegetation."
- LAND DEVELOPMENT ACTIVITY
- Construction activity, including clearing, grading, excavating, soil disturbance or placement of fill, that results in land disturbance of equal to or greater than one acre, or activities disturbing less than one acre of total land acreage that is part of a larger common plan of development or sale, even though multiple separate and distinct land development activities may take place at different times on different schedules.
- The legal or beneficial owner of land, including those holding the right to purchase or lease the land, or any other person holding proprietary rights in the land.
- MAINTENANCE AGREEMENT
- A legally recorded document that acts as a property deed restriction and which provides for a long-term maintenance of stormwater management practices.
- NONPOINT SOURCE POLLUTION
- Pollution from any source other than from any discernible, confined, and discrete conveyances and shall include, but not be limited to, pollutants from agricultural, silvicultural, mining, construction, subsurface disposal and urban runoff sources.
- Clearing a parcel of land in distinct pieces or parts, with the stabilization of each piece completed before the clearing of the next.
- POLLUTANT OF CONCERN
- Sediment or a water quality measurement that addresses sediment (such as total suspended solids, turbidity or siltation) and any other pollutant that has been identified as a cause of impairment of any water body that will receive a discharge from the land development activity.
- Land development activity.
- The replenishment of underground water reserves.
- SEDIMENT CONTROL
- Measures that prevent eroded sediment from leaving the site.
- SENSITIVE AREAS
- Cold-water fisheries, shellfish beds, swimming beaches, groundwater recharge areas, water supply reservoirs, and habitats for threatened, endangered or special-concern species.
- SPDES GENERAL PERMIT FOR CONSTRUCTION ACTIVITIES GP-02-01
- A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to developers of construction activities to regulate the disturbance of one or more acres of land.
- SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM MUNICIPAL SEPARATE STORMWATER SEWER SYSTEMS GP-02-02
- A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to municipalities to regulate discharges from municipal separate storm sewers for compliance with EPA-established water quality standards and/or to specify stormwater control standards.
- The use of practices that prevent exposed soil from eroding.
- STOP-WORK ORDER
- An order issued which requires that all construction activity on a site be stopped.
- Rainwater, surface runoff, snowmelt and drainage.
- STORMWATER HOTSPOT
- A land use or activity that generates higher concentrations of hydrocarbons, trace metals or toxicants than are found in typical stormwater runoff, based on monitoring studies.
- STORMWATER MANAGEMENT
- The use of structural or nonstructural practices that are designed to reduce stormwater runoff and mitigate its adverse impacts on property, natural resources and the environment.
- STORMWATER MANAGEMENT FACILITY
- One or a series of stormwater management practices installed, stabilized and operating for the purpose of controlling stormwater runoff.
- STORMWATER MANAGEMENT OFFICER
- An employee or officer designated by the municipality to accept and review stormwater pollution prevention plans, forward the plans to the applicable municipal board and inspect stormwater management practices.
- STORMWATER MANAGEMENT PRACTICES (SMPS)
- Measures, either structural or nonstructural, that are determined to be the most effective, practical means of preventing flood damage and preventing or reducing point source or nonpoint source pollution inputs to stormwater runoff and water bodies.
- STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
- A plan for controlling stormwater runoff and pollutants from a site during and after construction activities.
- STORMWATER RUNOFF
- Flow on the surface of the ground resulting from precipitation.
- SURFACE WATERS OF THE STATE OF NEW YORK
- Lakes, bays, sounds, ponds, impounding reservoirs, springs, wells, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic Ocean within the territorial seas of the State of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface or underground waters), which are wholly or partially within or bordering the state or within its jurisdiction. Storm sewers and waste treatment systems, including treatment ponds or lagoons that also meet the criteria of this definition, are not waters of the state. This exclusion applies only to man-made bodies of water which neither were originally created in waters of the state (such as a disposal area in wetlands) nor resulted from the impoundment of waters of the state.
- A permanent or intermittent stream or other body of water, either natural or man-made, which gathers or carries surface water.
- A channel that directs surface runoff to a watercourse or to the public storm drain.
Stormwater pollution prevention plan required. No application for approval of a land development activity shall be reviewed until the appropriate board has received a stormwater pollution prevention plan (SWPPP) prepared in accordance with the specifications in this chapter.
Contents of stormwater pollution prevention plans.
All SWPPPs shall provide the following background information and erosion and sediment controls:
Background information about the scope of the project, including type and size of project;
Site map/construction drawings(s) for the project, including a general location map. At a minimum, the site map should show:
The total site area;
Areas of disturbance;
Areas that will not be disturbed;
On-site and adjacent off-site surface water(s);
Wetlands and drainage patterns that could be affected by the construction activity;
Existing and final slopes;
Locations of off-site material, waste, borrow or equipment storage areas; and
Location(s) of the stormwater discharges(s);
A description of the soil(s) present at the site;
A construction phasing plan describing the intended sequence of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity at the site that results in soil disturbance. Consistent with the New York Standards and Specifications for Erosion and Sediment Control (Erosion Control Manual), not more than five acres shall be disturbed at any one time unless pursuant to an approved SWPPP;
A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in stormwater runoff;
A description of construction and waste materials expected to be stored on site, with updates as appropriate, and a description of controls to reduce pollutants from these materials, including storage practices to minimize exposure of the materials to stormwater and spill prevention and response;
Temporary and permanent structural and vegetative measures to be used for soil stabilization, runoff control and sediment control for each stage of the project from initial land clearing and grubbing to project closeout;
A site map/construction drawing(s) specifying the location(s), size(s) and length(s) of each erosion and sediment control practice;
Dimensions, material specifications and installation details for all erosion and sediment control practices, including the siting and sizing of any temporary sediment basins;
Temporary practices that will be converted to permanent control measures;
An implementation schedule for staging temporary erosion and sediment control practices, including the timing of initial placement and the duration that each practice should remain in place;
A maintenance schedule to ensure continuous and effective operation of the erosion and sediment control practice;
The names(s) of the receiving water(s);
A delineation of SWPPP implementation responsibilities for each part of the site;
A description of structural practices designed to divert flows from exposed soils, store flows, or otherwise limit the runoff and the discharge of pollutants from exposed areas of the site to the degree attainable; and
Any existing data that describes the stormwater runoff at the site.
Land development activities as defined in § 183-6 of this chapter and meeting Condition A, B or C below shall also include water quantity and water quality controls (post-construction stormwater runoff controls) as set forth in § 183-7B(3) below as applicable:
Condition A: Stormwater runoff from land development activities discharging a pollutant of concern to either an impaired water identified on the department's 303(d) list of impaired waters or a total-maximum-daily-load (TMDL)-designated watershed for which pollutants in stormwater have been identified as a source of the impairment.
Condition B: Stormwater runoff from land development activities disturbing five or more acres.
Condition C: Stormwater runoff from land development activities disturbing between one and five acres of land during the course of the project, exclusive of the construction of single-family residences and construction activities at agricultural properties.
SWPPP requirements for Conditions A, B and C:
A description of each postconstruction stormwater management practice;
A site map/construction drawing(s) showing the specific location(s) and size(s) of each postconstruction stormwater management practice;
A hydrologic and hydraulic analysis for all structural components of the stormwater management system for the applicable design storms;
A comparison of postdevelopment stormwater runoff conditions with predevelopment conditions;
Dimensions, material specifications and installation details for each postconstruction stormwater management practice;
A maintenance schedule to ensure continuous and effective operation of each postconstruction stormwater management practice;
Maintenance easements to ensure access to all stormwater management practices at the site for the purpose of inspection and repair. Easements shall be recorded on the plan and shall remain in effect with the transfer of title to the property.
Plan certification. The SWPPP shall be prepared by a landscape architect, certified professional or professional engineer and must be signed by the professional preparing the plan, who shall certify that the design of all stormwater management practices meets the requirements in this chapter.
Other environmental permits. The applicant shall assure that all other applicable environmental permits have been or will be acquired for the land development activity prior to approval of the final stormwater design plan.
Each contractor and subcontractor identified in the SWPPP who will be involved in soil disturbance and/or stormwater management practice installation shall sign and date a copy of the following certification statement before undertaking any land development activity: "I certify under penalty of law that I understand and agree to comply with the terms and conditions of the Stormwater Pollution Prevention Plan. I also understand that it is unlawful for any person to cause or contribute to a violation of water quality standards."
The certification must include the name and title of the person providing the signature, address and telephone number of the contracting firm; the address (or other identifying description) of the site; and the date the certification is made.
The certification statement(s) shall become part of the SWPPP for the land development activity.
A copy of the SWPPP shall be retained at the site of the land development activity during construction from the date of initiation of construction activities to the date of final stabilization.
All land development activities shall be subject to the following performance and design criteria:
Technical standards. For the purpose of this chapter, the following documents shall serve as the official guides and specifications for stormwater management. Stormwater management practices that are designed and constructed in accordance with these technical documents shall be presumed to meet the standards imposed by this chapter.
The New York State Stormwater Management Design Manual (New York State Department of Environmental Conservation, most current version or its successor, hereafter referred to as the "Design Manual").
New York Standards and Specifications for Erosion and Sediment Control (Empire State Chapter of the Soil and Water Conservation Society, 2004, most current version or its successor, hereafter referred to as the "Erosion Control Manual").
Water quality standards. Any land development activity shall not cause an increase in turbidity that will result in substantial visible contrast to natural conditions in surface waters of the State of New York.
Maintenance during construction.
The applicant or developer of the land development activity shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the applicant or developer to achieve compliance with the conditions of this chapter. Sediment shall be removed from sediment traps or sediment ponds whenever their design capacity has been reduced by 50%.
The applicant or developer or his representative shall be on site at all times when construction or grading activity takes place and shall inspect and document the effectiveness of all erosion and sediment control practices. Inspection reports shall be completed every seven days and within 24 hours of any storm event producing 0.5 inches of precipitation or more. The reports shall be delivered to the Stormwater Management Officer and also copies to the site log book.
Maintenance easement(s). Prior to the issuance of any approval that has a stormwater management facility as one of the requirements, the applicant or developer must execute a maintenance easement agreement that shall be binding on all subsequent landowners served by the stormwater management facility. The easement shall provide for access to the facility at reasonable times for periodic inspection by the Town of Mount Pleasant to ensure that the facility is maintained in proper working condition to meet design standards and any other provisions established by this chapter. The easement shall be recorded by the grantor in the office of the County Clerk after approval by the counsel for the Town of Mount Pleasant.
Maintenance after construction. The owner or operator of permanent stormwater management practices installed in accordance with this chapter shall operate and maintain them to achieve the goals of this chapter. Proper operation and maintenance also includes, as a minimum, the following:
A preventive/corrective maintenance program for all critical facilities and systems of treatment and control (or related appurtenances) which are installed or used by the owner or operator to achieve the goals of this chapter.
Written procedures for operation and maintenance and training new maintenance personnel.
Maintenance agreements. The Town of Mount Pleasant shall approve a formal maintenance agreement for stormwater management facilities binding on all subsequent landowners and recorded in the office of the County Clerk as a deed restriction on the property prior to final plan approval. The maintenance agreement shall be consistent with the terms and conditions of Schedule B of this chapter titled "Sample Stormwater Control Facility Maintenance Agreement.” The Town of Mount Pleasant, in lieu of a maintenance agreement, at its sole discretion may accept the dedication of any existing or future stormwater management facility, provided such facility meets all the requirements of this chapter and includes adequate and perpetual access and sufficient area, by easement or otherwise, for inspection and regular maintenance.
Editor's Note: Said Schedule B is on file in the Town offices.
Erosion and sediment control inspection.
The Town of Mount Pleasant Stormwater Management Officer may require such inspections as necessary to determine compliance with this chapter and may either approve that portion of the work completed or notify the applicant wherein the work fails to comply with the requirements of this chapter and the stormwater pollution prevention plan (SWPPP) as approved. To obtain inspections, the applicant shall notify the Town of Mount Pleasant enforcement official at least 48 hours before any of the following as required by the Stormwater Management Officer:
The start of construction.
The installation of sediment and erosion control measures.
The completion of site clearing.
The completion of rough grading.
The completion of final grading.
The close of the construction season.
The completion of final landscaping.
The successful establishment of landscaping in public areas.
If any violations are found, the applicant and developer shall be notified in writing of the nature of the violation and the required corrective actions. No further work shall be conducted, except for site stabilization, until any violations are corrected and all work previously completed has received approval by the Stormwater Management Officer.
Stormwater management practice inspections. The Town of Mount Pleasant Stormwater Management Officer, is responsible for conducting inspections of stormwater management practices (SMPs). All applicants are required to submit as-built plans for any stormwater management practices located on site after final construction is completed. The plan must show the final design specifications for all stormwater management facilities and must be certified by a professional engineer.
Inspection of stormwater facilities after project completion. Inspection programs shall be established on any reasonable basis, including but not limited to routine inspections; random inspections; inspections based upon complaints or other notice of possible violations; inspection of drainage basins or areas identified as higher-than-typical sources of sediment or other contaminants or pollutants; inspections of businesses or industries of a type associated with higher-than-usual discharges of contaminants or pollutants with discharges of a type that are more likely than the typical discharge to cause violations of state or federal water or sediment quality standards or the SPDES stormwater permit; and joint inspections with other agencies inspecting under environmental or safety laws. Inspections may include but are not limited to reviewing maintenance and repair records; sampling discharges, surface water, groundwater, and material or water in drainage control facilities; and evaluating the condition of drainage control facilities and other stormwater management practices.
Submission of reports. The Town of Mount Pleasant Stormwater Management Officer may require monitoring and reporting from entities subject to this chapter as are necessary to determine compliance with this chapter.
Right-of-entry for inspection. When any new stormwater management facility is installed on private property or when any new connection is made between private property and the public stormwater system, the landowner shall grant to the Town of Mount Pleasant the right to enter the property at reasonable times and in a reasonable manner for the purpose of inspection as specified in § 183-10C.
Construction completion guarantee. In order to ensure the full and faithful completion of all land development activities related to compliance with all conditions set forth by the Town of Mount Pleasant in its approval of the stormwater pollution prevention plan, the Town of Mount Pleasant may require the applicant or developer to provide, prior to construction, a performance bond, cash escrow, or irrevocable letter of credit from an appropriate financial or surety institution which guarantees satisfactory completion of the project and names the Town of Mount Pleasant as the beneficiary. The security shall be in an amount to be determined by the Town of Mount Pleasant based on submission of final design plans, with reference to actual construction and landscaping costs. The performance guarantee shall remain in force until the surety is released from liability by the Town of Mount Pleasant, provided that such period shall not be less than one year from the date of final acceptance or such other certification that the facility(ies) have been constructed in accordance with the approved plans and specifications and that a one-year inspection has been conducted and the facilities have been found to be acceptable to the Town of Mount Pleasant. Per annum interest on cash escrow deposits shall be reinvested in the account until the surety is released from liability.
Maintenance guarantee. Where stormwater management and erosion and sediment control facilities are to be operated and maintained by the developer or by a corporation that owns or manages a commercial or industrial facility, the developer, prior to construction, may be required to provide the Town of Mount Pleasant with an irrevocable letter of credit from an approved financial institution or surety to ensure proper operation and maintenance of all stormwater management and erosion control facilities both during and after construction and until the facilities are removed from operation. If the developer or landowner fails to properly operate and maintain stormwater management and erosion and sediment control facilities, the Town of Mount Pleasant may draw upon the account to cover the costs of proper operation and maintenance, including engineering and inspection costs.
Recordkeeping. The Town of Mount Pleasant may require entities subject to this chapter to maintain records demonstrating compliance with this chapter.
Notice of violation. When the Town of Mount Pleasant determines that a land development activity is not being carried out in accordance with the requirements of this chapter, it may issue a written notice of violation to the landowner. The notice of violation shall contain:
The name and address of the landowner, developer or applicant;
The address, when available, or a description of the building, structure or land upon which the violation is occurring;
A statement specifying the nature of the violation;
A description of the remedial measures necessary to bring the land development activity into compliance with this chapter and a time schedule for the completion of such remedial action;
A statement of the penalty or penalties that shall or may be assessed against the person to whom the notice of violation is directed;
A statement that the determination of violation may be appealed to the municipality by filing a written notice of appeal within 15 days of service of notice of violation.
Stop-work orders. The Town of Mount Pleasant may issue a stop-work order for violations of this chapter. Persons a receiving a stop-work order shall be required to halt all land development activities, except those activities that address the violations leading to the stop-work order. The stop-work order shall be in effect until the Town of Mount Pleasant confirms that the land development activity is in compliance and the violation has been satisfactorily addressed. Failure to address a stop-work order in a timely manner may result in civil, criminal, or monetary penalties in accordance with the enforcement measures authorized in this chapter.
Violations. Any land development activity that is commenced or is conducted contrary to this chapter may be restrained by injunction or otherwise abated in a manner provided by law.
Penalties for offenses. In addition to or as an alternative to any penalty provided herein or by law, any person who violates the provisions of this chapter shall be guilty of a violation punishable by a fine not exceeding $350 or imprisonment for a period not to exceed six months, or both, for conviction of a first offense; for conviction of a second offense, both of which were committed within a period of five years, punishable by a fine not less than $350 nor more than $700 or imprisonment for a period not to exceed six months, or both; and upon conviction for a third or subsequent offense, all of which were committed within a period of five years, punishable by a fine not less than $700 nor more than $1,000 or imprisonment for a period not to exceed six months, or both. However, for the purposes of conferring jurisdiction upon courts and judicial officers generally, violations of this chapter shall be deemed misdemeanors, and for such purpose only, all provisions of law relating to misdemeanors shall apply to such violations. Each week's continued violation shall constitute a separate additional violation.
Withholding of certificate of occupancy. If any building or land development activity is installed or conducted in violation of this chapter, the Stormwater Management Officer may prevent the occupancy of said building or land.
Restoration of lands. Any violator may be required to restore land to its undisturbed condition. In the event that restoration is not undertaken within a reasonable time after notice, the Town of Mount Pleasant may take necessary corrective action, the cost of which shall become a lien upon the property until paid.
Severability. If the provisions of any article, section, subsection, paragraph, subdivision or clause of this chapter shall be judged invalid by a court of competent jurisdiction, such order of judgment shall not affect or invalidate the remainder of any article, section, subsection, paragraph, subdivision or clause of this chapter.
when effective. This chapter shall be effective upon filing with the office of the Secretary of State.
[Added 6-28-2011 by L.L. No. 2-2011]
No person shall commence or otherwise perform any land development activity in the Town of Mount Pleasant that involves 250 square feet or more of disturbance in all zones, except where 100 square feet or more of disturbance is proposed in the R-10 zone, without first obtaining the proper stormwater management control permit from the Town Engineer, in addition to all other necessary local, state and federal permits.
Nothing in this section shall be construed to be less restrictive than current New York State Department of Environmental Conservation (NYS DEC) requirements. It is the intent of this section to address land disturbance on those land parcels not covered by a NYS DEC SPDES permit.
The information below outlines the obligations required of applicants in order to obtain a Town of Mount Pleasant stormwater management control permit, including application forms and permit requirements:
Application forms. The applicant shall fill out and submit the following information in triplicate for all stormwater control permits in accordance with the provisions of this chapter. The forms are available from the Town Engineering Department and the Town website:
Stormwater management control permit application form;
Project commencement and completion forms. Please note that the project commencement form must include a total project cost estimate by the project design professional. Upon approval of the total construction cost estimate by the Town Engineer, the applicant shall submit the construction inspection fee of 1/2% of the total construction cost estimate;
Application fee of $150; this is in addition to the inspection fee;
Erosion and sediment control plan;
Stormwater pollution prevention plan;
Stormwater management design calculations;
Affidavit of ownership;
Design calculations. The applicant shall provide design calculations, prepared by the project's design professional, to support the stormwater management and erosion and sediment control plan for the project site. Calculations must conform to the following standards, methodology and criteria as noted below:
Standards. The following documents shall serve as the official guides and specifications for stormwater management. Stormwater management practices that are designed and constructed in accordance with these technical documents shall be presumed to meet the standards imposed by this chapter.
The New York State Stormwater Management Design Manual (New York State Department of Environmental Conservation, most current version or its successor, hereafter referred to as the "Design Manual").
New York Standards and Specifications for Erosion and Sediment Control (New York State Department of Environmental Conservation, Division of Water, August 2005, or most current version or its successor, hereafter referred to as the "Erosion Control Manual").
The Westchester County Best Management Practices Manual for Erosion and Sediment Control and/or Stormwater Management may also be utilized for stormwater practices for pollutant removal and flow attenuation. However, if conflicts are found between the above New York State Standards and the County Best Management Practices, the New York State Standards shall govern.
Methodology. Stormwater shall be managed on site using stormwater control measures designed to afford optimum protection of ground- and surface waters. Stormwater calculations for determining stormwater volume and flow rate shall be performed in accordance with either the Rational Method or TR-55 or Westchester County Best Management Practices Manual for Stormwater Management, as determined by the Town Engineer.
Stormwater calculations shall be based upon the twenty-five-year design storm, unless project characteristics require higher standards, as determined by the Town Engineer. For the convenience of design professionals, the following rainfall intensity and frequency data for the twenty-four-hour Type III rainfall distribution for Westchester County shall be utilized as required to comply with the requirements of this chapter:
Stormwater design calculations shall consider all existing and new impervious surfaces, including but not limited to roof areas, driveways, patios, deck areas, swimming pools and walkways, unless the Town Engineer allows consideration of the new impervious areas only.
Infiltration devices shall not be installed up-gradient within 20 feet of the subsurface treatment system of a wastewater treatment system, subject to Westchester County Department of Health regulations. Infiltration devices for roadways, parking lots, and other areas subject to vehicle traffic shall not be installed within 50 feet of any water well, wetland or water body, subject to Westchester County Department of Health regulations.
The bottom of any infiltration device shall be a minimum of two feet above seasonal high groundwater mark and two feet above bedrock. Deep test holes shall be dug at the location of the proposed stormwater control facility, which shall be witnessed by the Town Engineer or a duly appointed Town representative. A log of the deep test holes and the percolation tests shall be provided on the SWPPP.
Infiltration devices and buildings shall be designed to maintain maximum attainable horizontal distance separation from wells, water bodies and wetlands.
The minimum horizontal distance from an infiltration device to a property line is 10 feet.
The minimum horizontal distance from an infiltration device to a structure with a habitable basement or below-ground storage area shall be 20 feet.
Stormwater management facilities shall include a sedimentation device to prevent clogging and reduced performance of the facility.
Stormwater management facilities shall include recommendations for special measures regarding maintenance operations, as required by the Town Engineer. This shall include, but not be limited to, annual reports of maintenance and cleaning for commercial properties.
Stormwater pollution prevention plan (SWPPP). The applicant shall provide a stormwater management pollution prevention plan which shall include erosion and sediment control for the project. The plan must conform to the following map standards, indicate the following existing and proposed map information, and include construction and housekeeping requirements, as noted below, or as directed by the Town Engineer:
Map standards and requirements.
A general location map, including property zoning information;
North arrow and map legend;
Site map shall be at a scale no smaller than one inch equals 50 feet. Larger-scale maps shall be used for single-family parcels and small commercial lots, as determined by the Town Engineer;
Existing and proposed topography;
Indication of existing and proposed drainage patterns, wetlands, wetland buffers, water bodies and areas of one-hundred-year floodplain, where applicable;
Classification and description of the soil(s) present at the site;
Areas of vegetation, and the size and species of all trees with a trunk diameter of six inches or greater at a point four feet above ground level;
Structures and paved area;
Areas of proposed excavation, grading and filling;
Existing and proposed stormwater conveyances/utilities both on site, in the right-of-way and in the abutting areas, as well as other utilities;
Proposed materials of construction;
Soil stockpile storage areas;
Proposed construction drawings which describe the location, size, length, materials and installation details for all on-site stormwater treatment, detention, retention, erosion and sediment control practices. Profiles of the stormwater treatment facility shall be provided.
Each contractor and subcontractor identified in the SWPPP to be involved in soil disturbance and/or stormwater management practice installation shall sign and date a permit compliance certification statement before undertaking any land development activity.
The applicant, developer or operator of the land development activity shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the applicant, developer or operator to achieve compliance with the conditions of this chapter. Sediment shall be removed from sediment traps or sediment ponds whenever their design capacity has been reduced by 50%.
A copy of the approved SWPPP shall be retained at the site during construction, from the date of initiation of construction activities to the date of final stabilization.
The applicant or developer or their representatives shall be on site at all times when construction or grading activity takes place and shall inspect and document the effectiveness of all erosion and sediment control practices. Inspection reports shall be completed every seven days and within 24 hours of any storm event producing 0.5 inch of precipitation or more. A copy of the reports shall be delivered to the Town of Mount Pleasant Engineering Department.
The Town of Mount Pleasant Town Engineer and/or the Building Department, under the supervision and direction of the Town Engineer, is responsible for conducting inspections of both stormwater management and sediment and erosion control practices.
Such inspections shall be performed as necessary, and as noted below, to determine compliance with this chapter and may either approve that portion of the work completed or notify the applicant wherein the work fails to comply with the requirements of this chapter and the stormwater pollution prevention plan (SWPPP) as approved. To obtain inspections, the applicant shall notify the Town Engineer at least 48 hours prior to any of the following project actions, as applicable:
If any violations are found, the applicant and/or developer and/or contractor and/or operator shall be notified in writing of the nature of the violation and required corrective action. The applicant and/or developer and/or contractor and/or operator shall take immediate action, within 24 hours of receipt of the violation document, to remedy the situation. No further work shall be conducted at the site, except for site stabilization, until all violations are corrected and all work previously completed has received approval by the Town Engineer. If the violations are not corrected within the twenty-four-hour period, the Town Engineer will process, serve and file a complaint, together with a supporting deposition returnable within two weeks in the Town Justice Court.
Operation and maintenance responsibilities. The owner or operator of permanent stormwater management practices installed in accordance with this chapter shall at all times operate and maintain the practices to achieve the goals of this chapter. Proper operation and maintenance includes, at a minimum, the following:
A preventive/corrective maintenance program for all facilities and systems of treatment and control and related appurtenances that are installed or used by the owner or operator to achieve the goals of this chapter.
Discharges from the SWPPPs shall not exceed design criteria, or cause or contribute to water quality standard violations.
Land development activity shall not cause an increase in turbidity that will result in substantial visible contrast to natural conditions.
Easement. The Town of Mount Pleasant has the right of access across lands involved in the stormwater management control permit, at reasonable times, for Town personnel to inspect, repair, or to ensure that the facilities in the SWPPP are maintained in proper working condition by the owner. However, the obligation to repair and maintain the facility is wholly the responsibility of the owner who will hold the Town harmless from all liability, financial and otherwise, should the Town of Mount Pleasant be forced to repair the facility.