This chapter shall be known as the "Stormwater
Law" of the Town of North Salem.
It is hereby determined that:
A. 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, and sediment transport and deposition.
B. This stormwater runoff contributes to increased quantities
of waterborne pollutants, including siltation of aquatic habitat for
fish and other desirable species.
C. Clearing and grading during construction tends to
increase soil erosion and add to the loss of native vegetation necessary
for terrestrial and aquatic habitat.
D. Improper design and construction of stormwater management
practices (SMPs) can increase the velocity of stormwater runoff, thereby
increasing streambank erosion and sedimentation.
E. Impervious surfaces allow less water to percolate
into the soil, thereby decreasing groundwater recharge and stream
baseflow.
F. Substantial economic losses can result from these
adverse impacts on the waters of the municipality.
G. Stormwater runoff, soil erosion and nonpoint source
pollution can be controlled and minimized through the regulation of
stormwater runoff from land development activities.
H. 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.
I. 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 in §
193-2 hereof. This chapter seeks to meet those purposes by achieving the following objectives:
A. Meet the requirements of minimum measures 4 and 5
of the New York State Department of Environmental Conservation (NYSDEC)
State Pollutant Discharge Elimination System (SPDES) General Permit
for Stormwater Discharges from Municipal Separate Stormwater Sewer
Systems (MS4s), Permit GP-02-02, or as amended or revised.
B. Require land development activities to conform to
the substantive requirements of the NYSDEC SPDES General Permit for
Construction Activities Permit GP-02-01, or as amended or revised.
C. 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.
D. Minimize increases in pollution caused by stormwater
runoff from land development activities which would otherwise degrade
local water quality.
E. Minimize the total annual volume of stormwater runoff
which flows from any specific site during and following development
to the maximum extent practicable.
F. Reduce stormwater runoff rates and volumes, soil erosion
and nonpoint source pollution, wherever possible, through stormwater
management practices and to ensure that these management practices
are properly maintained and eliminate threats to public safety.
As used in this chapter, the following terms
shall have the meanings indicated:
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 a roof supported by such things
as columns, posts, piers or walls and intended for the shelter, business,
housing or enclosing of any persons, animals or property.
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.
CONTROLLED AREA
Areas regulated in accordance with the Code of the Town of North Salem, Chapter
107, or the most current version of the Town's freshwater wetlands regulations, including wetlands and their adjacent land areas, as defined in the regulations.
DEDICATION
The deliberate appropriation of property by its owner for
general public use.
DESIGN MANUAL
The most recent version of the New York State Stormwater
Management Design Manual, most recent version including applicable
updates that serves 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 manual, commonly known as the "Blue
Book."
FARMING OPERATION
Any operation on a parcel of land, not less than four acres,
that is used for soil-dependent cultivation of agricultural crop production
and/or the raising of livestock, poultry or dairy products, raising
of fur-bearing animals, the keeping of horses and livery or boarding
stables. It excludes riding academies and dog kennels.
GRADING
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, including gravel surfaces
(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.
INFILTRATION
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." This includes any area
that meets the definition of wetlands according to the Town's freshwater
wetlands regulations.
LAND DEVELOPMENT ACTIVITY
Construction activity, including clearing, grubbing, grading,
excavating, soil disturbance or placement of fill.
[Amended 3-24-2009 by L.L. No. 2-2009]
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.
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.
NYSDEC
The New York State Department of Environmental Conservation.
PHASING
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.
RECHARGE
The replenishment of underground water reserves.
SENSITIVE AREAS
Coldwater fisheries, shellfish beds, swimming beaches, groundwater
recharge areas, water supply reservoirs, and habitats for threatened,
endangered or special concern species.
SILVICULTURAL ACTIVITY
The cultivation of forest trees and forestry, including timber
harvesting, logging and forest management.
STABILIZATION
The use of practices that prevent exposed soil from eroding.
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 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 (SMO)
An employee or officer designated by the municipality to
accept, and review and approve stormwater pollution prevention plans,
forward the plans to the applicable municipal board and inspect stormwater
management practices. Plan reviews and site inspections may be delegated
to a consulting engineer and/or a consultant paid for through the
applicant's escrow account; however, a municipal employee or board
member must make the final approval.
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.
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, which
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 impoundment of waters of the state.
WATERCOURSE
A permanent or intermittent stream or other body of water,
either natural or man-made, which gathers or carries surface water.
This includes any area that meets the definition of a watercourse
according to the Town's freshwater wetlands regulations.
WATERWAY
A channel that directs surface runoff to a watercourse or
to the public storm drain. This includes any area that meets the definition
of a waterway according to the Town's freshwater wetlands regulations.
WETLAND
Part of the controlled areas regulated in accordance with the Code of the Town of North Salem, Chapter
107, or the most current version of the Town's freshwater wetlands regulations, including wetlands and watercourses, as defined in the regulations.
The following activities shall be exempt from
review under this chapter. Notification shall be submitted to and
officially received by the SMO 10 days in advance of these activities.
A. Tilling soil for planting, or clearing to create cropland
or pasture, as part of a farming or agricultural operation. All other
aspects of farming operations are regulated under this chapter.
B. Timber harvesting, logging, forest management and other silvicultural activities, conducted under the NYSDEC Cooperating Forester Program or under a forest management plan prepared in consultation with a Watershed Forester from the Watershed Agricultural Council (WAC, http://www.nycwatershed.org/), except that landing areas and log haul roads are subject to the performance and design criteria in §
193-11 herein, but not the permitting procedures in this chapter.
C. Routine maintenance activities that disturb less than
five acres, to be determined in consultation with the Stormwater Management
Officer, and are performed to maintain the original line and grade,
hydraulic capacity or original purpose of a facility.
D. Repairs to any stormwater management practice or facility
deemed necessary by the Town Engineer.
E. Land development activities for which a building permit
has been approved on or before the effective date of this chapter.
F. Emergency activity immediately necessary to protect
life, property or natural resources.
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.
All land development activities shall be subject
to the following performance and design criteria:
A. For the purpose of this chapter, the following documents
shall serve as the official guides and specifications for stormwater
management and erosion and sedimentation control. 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 technical guidance documents may
be ordered from the NYSDEC and may be available on the NYSDEC Web
site):
(1) 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").
(2) New York Standards and Specifications for Erosion
and Sediment Control, (Empire State Chapter of the Soil and Water
Conservation Society, 2005, most current version or its successor,
hereafter referred to as the "Erosion Control Manual").
B. Where stormwater management practices are not in accordance with the technical documents described in Subsection
A above, the applicant or developer must demonstrate equivalence to the technical standards contained in these documents, and the SWPPP shall be prepared by a licensed professional.
C. 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.
Prior to the issuance of any approval that has
a stormwater management facility, 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 be in a form acceptable to the Town Attorney and
shall provide for access to the facility at reasonable times for periodic
inspection by the Town of North Salem 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.
The owner or operator of permanent stormwater
management practices (SMPs) installed in accordance with this chapter
shall operate and maintain the stormwater management practices to
achieve the goals of this chapter. Proper operation and maintenance
also includes, as a minimum, the following:
A. 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, as stated in §
193-3, Purpose.
B. Written procedures for operation and maintenance and
training new maintenance personnel.
C. Discharges from the SMPs shall not exceed design criteria or cause or contribute to water quality standard violations in accordance with §
193-11.
The Town of North Salem 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 entitled "Sample Stormwater Control Facility Maintenance Agreement."