B.
All SWPPPs shall be prepared in conformance with this chapter, the
SPDES General Permit for Construction Activities, and the NYSDEC technical
standards, as applicable.
C.
All SWPPPs shall provide the following background information and
erosion and sediment controls:
(1)
Background information about the scope of the project, including
location, type and size of project.
(2)
Site map/construction drawing(s) for the project, at a scale no smaller
than one inch equals 100 feet, including a general location map. At
a minimum, the site map shall show the total site area; all improvements;
areas of disturbance; areas that will not be disturbed; existing vegetation;
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 different soil types with boundaries;
locations of off-site material, waste, borrow or equipment storage
areas; and location(s) of the stormwater discharge(s).
(3)
Description of the soil(s) present at the site, including an identification
of the hydrologic soil group (HSG).
(4)
Construction phasing plan and sequence of operations describing the
intended sequence of construction activities, including tree removal,
stumping, clearing and grubbing, excavation and grading, utility and
infrastructure installation and any other land development activities.
(5)
A description of the minimum erosion and sediment control practices
to be installed or implemented for each land development activity
that will result in soil disturbance. Include a schedule that identifies
the timing of initial placement or implementation of each erosion
and sediment control practice and the minimum time frames that each
practice should remain in place or be implemented.
(6)
A temporary and permanent soil stabilization plan that meets the
requirements of the most current version of the technical standard,
New York State Standards and Specifications for Erosion and Sediment
Control, for each stage of the project, including initial land clearing
and grubbing to project completion and achievement of final stabilization.
(7)
Dimensions, material specifications, installation details and operation
and maintenance requirements for all erosion and sediment control
practices. Include the location and sizing of any temporary sediment
basins and structural practices that will be used to divert flows
from exposed soils.
(8)
A site map/construction drawing(s) specifying the location(s), size(s)
and length(s) of each erosion and sediment control practice.
(9)
Maintenance schedule to ensure continuous and effective operation
of the erosion and sediment control practices. The maintenance inspection
schedule shall be in accordance with the requirements in the most
current version of the technical standard, New York State Standards
and Specifications for Erosion and Sediment Control.
(10)
Description and location of any stormwater discharges associated
with industrial activity other than construction at the site, including,
but not limited to, stormwater discharges from asphalt plants and
concrete plants located on the construction site.
(11)
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.
(12)
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.
(13)
Identification of any elements of the design that are not in
conformance with the requirements in the most current version of the
technical standard, New York State Standards and Specifications for
Erosion and Sediment Control. Include the reason for the deviation
or alternative design and provide information which demonstrates that
the deviation or alternative design is equivalent to the technical
standards.
(14)
Stormwater quantity and quality controls, at the discretion
of the SMO and/or the Town Engineer, may be required.
D.
Postconstruction stormwater management practice component.
(1)
All construction projects identified as needing postconstruction stormwater management practices pursuant to the SPDES General Permit for Construction Activities shall prepare a SWPPP that includes practices designed in conformance with the Design Manual, including green infrastructure practices, in addition to the items listed under § 189-8C above. Where postconstruction stormwater management practices are not designed in conformance with this technical standard, the applicant must demonstrate equivalence to the technical standard.
(2)
At a minimum, the postconstruction stormwater practice component
of the SWPPP shall include the following:
(a)
Identification of all postconstruction stormwater management
practices to be constructed as part of the project.
(b)
Site map/construction drawing(s) showing the specific location(s)
and size(s) of each postconstruction stormwater management practice.
(c)
Hydrologic and hydraulic analysis for all structural components
of the stormwater management control system for the applicable design
storms. The analysis shall include tributary area maps with two-foot
contours for the predevelopment and postdevelopment conditions.
(d)
Detailed summary (including calculations) of the sizing criteria
that was used to design all postconstruction stormwater management
practices. At a minimum, the summary shall address the required design
criteria from the applicable chapter of the Design Manual; including
the identification of and justification for any deviations from the
Design Manual, and identification of any design criteria that are
not required based on the design criteria or waiver criteria included
in the Design Manual.
(e)
Identification of any elements of the design that are not in
conformance with the Design Manual. Include the reason for the deviation
or alternative design and provide information which demonstrates that
the deviation or alternative design is equivalent to the technical
standards.
(f)
Comparison of postdevelopment stormwater runoff conditions with
predevelopment conditions.
(g)
Dimensions, material specifications and installation details
for each postconstruction stormwater management practice or facility.
(h)
Site maps must include existing topography with two-foot contours,
a proposed grading plan with a limit of disturbance line and the calculated
area of disturbance in acres.
(i)
An operations and maintenance plan that includes inspection
and maintenance schedules and actions to ensure continuous and effective
operation of each postconstruction stormwater management practice
or facility. The plan shall identify the entity that will be responsible
for the long-term operation and maintenance of each practice.
E.
Enhanced phosphorus. All projects that are required to conform to the enhanced phosphorus removal standards, pursuant to the SPDES General Permit for Construction Activities, shall prepare a SWPPP that includes postconstruction stormwater management practices designed in conformance with the enhanced phosphorus removal standards included in the Design Manual. At a minimum, the postconstruction stormwater management practice component of the SWPPP shall include items Subsection D(2)(a) through D(2)(i) above.
The applicant shall assure that all other applicable environmental
permits have been or will be acquired for the land development activity
prior to the issuance of a Town stormwater permit.
A.
All certifications required pursuant to the SPDES General Permit
for Construction Activities shall be submitted, endorsed and incorporated
into the SWPPP.
B.
Each contractor and subcontractor identified in the SWPPP who will
be responsible for installing, constructing, repairing, inspecting
and maintaining the erosion and sediment control practices included
in the SWPPP and the postconstruction stormwater management practice
installation must sign and date a copy of the following contractor
certification statement before undertaking any land development activity:
"I hereby certify that I understand and agree to comply with the terms
and conditions of the SWPPP and agree to implement any corrective
actions identified by the qualified inspector during a site inspection.
I also understand that the owner or operator must comply with the
terms and conditions of the most current version of the New York State
Pollutant Discharge Elimination System ("SPDES") General Permit for
Stormwater Discharges from Construction Activities and that it is
unlawful for any person to cause or contribute to a violation of water
quality standards. Furthermore, I understand that certifying false,
incorrect or inaccurate information is a violation of the referenced
permit and the laws of the State of New York and could subject me
to criminal, civil and/or administrative proceedings."
C.
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.
D.
The certification statement(s) shall become part of the SWPPP for
the land development activity.
E.
A copy of the SWPPP, including the above certification(s), 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.
