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 the 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.
APPLICANT
A property owner or agent of a property owner who has filed an application for a land development activity.
BUILDING
Any structure, either temporary or permanent, or extension thereof or addition thereto, having walls and a roof, designed for the shelter of any person, animal, or property, and occupying more than 100 square feet of area.
CHANNEL or STREAM CHANNEL
A natural or artificial watercourse with a definite bed and banks that conducts continuously or periodically flowing water.
CLEARING
Any activity that removes the vegetative surface cover.
DAYS
Unless explicitly defined otherwise, "days" refers to calendar days. If the date specified for taking action does not fall on a business day, the specified date for taking the relevant action shall be the next business day.
DESIGN MANUAL
The most recent version of the "New York State Stormwater Management Design Manual," including applicable updates, together which serve as the official guide for stormwater management principles, methods and practices.
DEVELOPER
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."
GRADING
Excavation or fill of material, including the resulting conditions thereof.
GREEN INFRASTRUCTURE PRACTICE
As set forth in Chapter 5 of the New York State Stormwater Management Design Manual.
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.
INFILTRATION
The process of percolating stormwater into the subsoil.
LAND DEVELOPMENT ACTIVITY
Construction activity, including clearing, grubbing, grading, filling, excavating, or stockpiling activities that results in soil disturbance. Clearing activities include, but are not limited to, logging equipment operations, the cutting and skidding of trees, and stump removal and/or brush root removal. Land development activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility.
LAND DISTURBANCE
See "land development activity" as defined herein.
LANDOWNER
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.
LARGER COMMON PLAN OF DEVELOPMENT OR SALE
A contiguous area where multiple separate and distinct land development activities are occurring, or will occur, under one plan. The term "plan" in "larger common plan of development or sale" is broadly defined as any announcement or piece of documentation [including a sign, public notice or hearing, marketing plan, advertisement, drawing, permit application, State Environmental Quality Review Act (SEQRA) application, zoning request, computer design, etc.] or physical demarcation (including signs, lot stakes, surveyor markings, etc.) indicating that land development activities may occur on a specific plot. For discrete construction projects that are located within a "larger common plan of development or sale" that are at least 1/4 mile apart, each activity can be treated as a separate plan of development or sale provided any interconnecting road, pipeline or utility project that is part of the same "common plan" is not concurrently being disturbed.
MAINTENANCE AGREEMENT
A legally recorded document that acts as a property deed restriction, and which provides for 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. Any source of pollution that is not point source pollution.
NYSDEC
The New York State Department of Environmental Conservation.
PERSON
Any individual, association, organization, partnership, firm, corporation or other entity recognized by law and acting as either the owner or as the owner's agent.
PHASING
Clearing a parcel of land in distinct pieces or parts, with the stabilization of each piece completed before the clearing of the next.
POINT SOURCE POLLUTION
Pollution from a single identifiable localized source, typically a discernable, confined and discrete conveyance.
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 land development activity.
PROJECT
See "land development activity" as defined herein.
QUALIFIED INSPECTOR
A person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed professional engineer, certified professional in erosion and sediment control (CPESC), registered landscape architect, or other NYSDEC-endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed professional engineer or registered landscape architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed professional engineer or registered landscape architect has received four hours of NYSDEC-endorsed training in proper erosion and sediment control principles every three years.
QUALIFIED PROFESSIONAL
A person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed professional engineer, registered landscape architect or other NYSDEC-endorsed individual(s). Individuals preparing SWPPPs that require postconstruction stormwater management practices must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics in order to prepare a SWPPP that conforms to the NYSDEC's technical standard. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law, shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York.
RECHARGE
The replenishment of underground water reserves.
ROUTINE MAINTENANCE
Land development activity that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility, including, but not limited to:
A. 
Regrading of gravel roads or parking lots.
B. 
Stream bank restoration projects (does not include the placement of spoil material).
C. 
Cleaning and shaping of existing roadside ditches and culverts that maintain the approximate original line and grade, and hydraulic capacity of the ditch.
D. 
Cleaning and shaping of existing roadside ditches that does not maintain the approximate original grade, hydraulic capacity or purpose of the ditch if the changes to the line and grade, hydraulic capacity and purpose of the ditch are installed to improve water quality and quantity controls (e.g., installing grass-lined ditch).
E. 
Placement of aggregate shoulder backing that makes the transition between the road shoulder and the ditch or embankment.
F. 
Full depth milling and filling of existing asphalt pavements, replacement of concrete pavement slabs, and similar work that does not expose underlying soil or disturb the bottom six inches of subbase material.
G. 
Long-term use of equipment storage areas at or near highway maintenance facilities.
H. 
Removal of sediment from the edge of the highway to restore a previously existing sheet-flow drainage connection from the highway surface to the highway ditch or embankment.
I. 
Replacement of curbs, gutters, sidewalks and guide rail posts.
SEDIMENT CONTROL
Measures designed in accordance with the Erosion Control Manual that prevent eroded sediment from dispersing beyond the limits of land development activity.
SILVICULTURAL ACTIVITY
The cultivation of forest trees and forestry, including timber harvesting, logging and forest management.
SPDES GENERAL PERMIT FOR CONSTRUCTION ACTIVITIES
A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to developers of land development activities to regulate disturbance of one or more acres of land or 5,000 square feet or more within the NYC East of Hudson Watershed.
SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM MUNICIPAL SEPARATE STORMWATER SEWER SYSTEMS
A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to municipalities to regulate discharges from municipal separate storm sewers (MS4) for compliance with EPA-established water quality standards and/or to specify stormwater control standards.
STABILIZATION
The use of practices designed in accordance with the Erosion Control Manual that prevent exposed soil from eroding.
STABILIZED
Means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a minimum density of 80% over the entire pervious surface has been established; or other equivalent stabilization measures, such as permanent landscape mulches, rock rip-rap, or washed/crushed stone have been applied on all disturbed areas that are not covered by permanent structures, concrete or pavement.
STOP-WORK ORDER
An order issued which requires that all land development activity and/or construction activity on a site be stopped.
STORMWATER
Rainwater, surface runoff, snowmelt and drainage.
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 (SMO)
An employee or officer designated by the Town Board to administer and enforce this chapter, and, in certain situations, review and approve Town stormwater permits and SWPPPs, forward applications and SWPPPs to the Planning Board, and inspect land development activities and stormwater management practices. The SMO may rely on the Town Engineer for the review of SWPPPs and to conduct inspections on his/her behalf.
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, prepared in conformance with this chapter, the SPDES General Permit for Construction Activities, and applicable NYSDEC technical standards.
STORMWATER RUNOFF
Flow on the surface of the ground, resulting from precipitation, snowmelt, surface runoff or drainage.
SURFACE WATERS OF THE STATE OF NEW YORK
Shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, 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. Waters of the state are further defined in 6 NYCRR Parts 800 to 941.
303(d) LIST
A list of all surface waters in the state for which beneficial uses of the water (drinking, recreation, aquatic habitat, and industrial use) are impaired by pollutants, prepared periodically by NYSDEC as required by Section 303(d) of the Clean Water Act. 303(d) listed waters are estuaries, lakes and streams that fall short of state surface water quality standards and are not expected to improve within the next two years.
TOTAL MAXIMUM DAILY LOAD (TMDL)
The sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. It is a calculation of the maximum amount of a pollutant that a water body can receive on a daily basis and still meet water quality standards, and an allocation of the amount to the pollutant's sources. A TMDL stipulates wasteload allocations (WLAs) for point source discharges, load allocations (LAs) for nonpoint sources, and a margin of safety (MOS).
TOWN
The Town of Lewisboro, Westchester County, New York.
TOWN ENGINEER
The duly appointed Town Engineer or his/her designated representative.
TOWN STORMWATER PERMIT
A permit issued by the SMO or Planning Board, as applicable, approving the SWPPP and authorizing a proposed land development activity.
TRAINED CONTRACTOR
An employee from the contracting (construction) company that has received four hours of NYSDEC-endorsed training in proper erosion and sediment control principles. After receiving the initial training, the trained contractor shall receive four hours of training every three years. It can also mean an employee from the contracting (construction) company that meets the qualified inspector qualifications as defined herein.
WATERCOURSE
A permanent or intermittent stream or other body of water, either natural or man-made, which gathers or carries surface water, including any area that meets the definition of "watercourse" as set forth in Chapter 217, Wetlands and Watercourses, of the Code of the Town of Lewisboro, as may be amended from time to time.
WETLAND
Areas meeting the definition of "wetland/freshwater wetland" as defined in Chapter 217, Wetlands and Watercourses, of the Code of the Town of Lewisboro, as may be amended from time to time.