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, or sediment transport and deposition.
B. This stormwater runoff contributes to increased quantities
of waterborne pollutants, including siltation of aquatic habitats
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 habitats.
D. Improper design and construction of stormwater management
practices can increase the velocity of stormwater runoff, thereby
increasing stream bank 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 §
188A-1 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 SPDES General Permit for Stormwater Discharges from Municipal
Separate Stormwater Sewer Systems (MS4s), Permit No. GP-02-02, as
amended or revised;
B. 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, 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 stream bank 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; and
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.
In accordance with § 10 of the Municipal
Home Rule Law of the State of New York, the Town Board of the Town
of Clarence has the authority to enact local laws amend local laws
and for the purpose of promoting the health, safety or general welfare
of the Town of Clarence and for the protection and enhancement of
its physical environment. The Town Board of the Town of Clarence 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.
The following activities may be exempt from
review under this chapter.
A. Agricultural activity as defined in this chapter.
B. Silvicultural activity, except that landing areas
and log haul roads are subject to this chapter.
C. Routine maintenance activities, as determined by the
Stormwater Management Officer, that disturb less than five acres 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 Stormwater Management Officer.
E. Any part of a subdivision if a plat for the subdivision
has been approved by the Town of Clarence on or before the effective
date of this chapter.
F. Land development activities for which a building permit
has been approved on or before the effective date of this chapter.
H. Installation of fence, sign, telephone, and electric
poles and other kinds of posts or poles.
I. Emergency activity immediately necessary to protect
life, property or natural resources.
J. 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.
K. Landscaping and horticultural activities in connection
with an existing structure.