It is the intent of this legislation to adopt a stormwater management and erosion and sediment control chapter that will satisfy the relevant part of the Phase II stormwater regulations adopted by the New York State Department of Environmental Conservation ("DEC").
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 the Village and to address the findings of fact in this chapter. 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 MS4s, Permit No. GP-02-02, or as amended or revised;
Require land development activities to conform to the substantive requirements of the 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.
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 tends 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 stream bank 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.
For the purposes of this chapter, certain terms and words are hereby defined. Words used in the present tense include the future, words in the singular include the plural, and words in the plural include the singular; the word "shall" is mandatory. Notwithstanding some references, for definitional purposes, to the Village Code, the omission of such references in other instances shall not be taken as an intent not to use such definitions for specific terms that are not defined in this section and are defined in said Code when it is deemed by the Building Inspector or any other official, board, or committee of the Village to be appropriate to do so.
As used in this chapter, the following terms shall have the meanings indicated:
- 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 New York State Department of Environmental Conservation.
- The deliberate appropriation of property by its owner for general public use.
- DESIGN MANUAL
- The 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.
- The United States Environmental Protection Agency.
- 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 infiltrate rainfall, snowmelt, and water (e.g., building rooftops, pavement, sidewalks, driveways, athletic courts, etc.).
- INDUSTRIAL STORMWATER PERMIT
- An SPDES 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, but not limited to, clearing, grading, excavating, soil disturbance, and 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 area 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 document legally recorded in the Office of the Nassau County Clerk that acts as a property deed restriction, and which provides for long-term maintenance of stormwater management practices.
- Municipal separate stormwater sewer systems.
- 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/or other habitats for threatened, endangered, or special concern species.
- Commercial care and cultivation of trees; forestry.
- The Stormwater Management Officer.
- Stormwater management practices.
- The State Pollutant Discharge Elimination System.
- SPDES GENERAL PERMIT FOR CONSTRUCTION ACTIVITIES GP-02-01
- A DEC SPDES permit issued to developers of construction activities to regulate disturbance of one or more acres of land.
- SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM MUNICIPAL SEPARATE STORMWATER SEWER SYSTEMS GP-02-02
- A DEC SPDES permit 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.
- The State of New York.
- STOP-WORK ORDER
- An order issued which requires that all, or a specified portion thereof, 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
- The officer of the Village designated to accept and review stormwater pollution prevention plans, forward the plans to the applicable Village board or committee and inspect stormwater management practices.
- STORMWATER MANAGEMENT PRACTICES
- Measures, either structural, nonstructural, or a combination of the two, 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
- 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
- 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 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 which also meet the criteria of this definition, are not surface waters of the state. The 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 impoundment of waters of the state.
- Stormwater pollution prevention plan.
- The Incorporated Village of Lattingtown.
- 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.
The Board of Trustees has the authority to enact and amend rules, regulations or local laws for the purpose of promoting the health, safety or general welfare of the Village and for the protection and enhancement of its physical environment. The Board of Trustees may include in any such rules, regulations or local law provisions for the appointment of any municipal officer, employees, or independent contractor to effectuate, administer, and enforce such chapter.
This chapter shall be applicable to all land development activities in the Village.
All other activities that are subject to review and approval by any board of the Village shall be reviewed by such board consistent with the standards contained in this chapter. These activities shall be required to submit a SWPPP to the SMO, who shall approve the SWPPP if it complies with the requirements of this chapter.
The SMO shall accept stormwater pollution prevention plans and notify the applicable Village board of such plans. The SMO may either:
Review the plans. The Board of Trustees may engage the services of a registered professional engineer to review the plans, specifications, and related documents at a cost to be borne by the applicant.
Accept the certification of a licensed professional that the plans conform to the requirements of this chapter.
The following are exempt from the provisions of this chapter:
Repairs to any stormwater management practice or facility deemed necessary by the SMO.
Any part of a subdivision, if the subdivision has been finally approved by the Village Planning Board on or before the effective date of this chapter, except where the Planning Board has reserved site plan review or other contiguous jurisdiction.