[HISTORY: Adopted by the City Council of
the City of Paterson 11-9-2005 by Ord. No. 05-081. Amendments noted where
applicable.]
A.
Policy statement. Flood control, groundwater recharge
and pollutant reduction through nonstructural or low-impact techniques
shall be explored before relying on structural BMPs. Structural BMPs
should be integrated with nonstructural stormwater management strategies
and proper maintenance plans. Nonstructural strategies include both
environmentally sensitive site design and source controls that prevent
pollutants from being placed on the site or from being exposed to
stormwater. Source control plans should be developed based upon physical
site conditions and the origin, nature and anticipated quantity or
amount of potential pollutants. Multiple stormwater management BMPs
may be necessary to achieve the established performance standards
for water quality, quantity and groundwater recharge.
B.
Purpose. It is the purpose of this chapter to establish minimum stormwater management requirements and controls for major development, as defined in § 433-2.
C.
D.
Compatibility with other permit and ordinance requirements.
Development approvals issued for subdivisions and site plans pursuant
to this chapter are to be considered an integral part of development
approvals under the subdivision and site plan review process and do
not relieve the applicant of the responsibility to secure required
permits or approvals for activities regulated by any other applicable
code, rule, act or ordinance. In their interpretation and application,
the provisions of this chapter shall be held to be the minimum requirements
for the promotion of the public health, safety and general welfare.
This chapter is not intended to interfere with, abrogate or annul
any other ordinances, rule or regulation, statute or other provision
of law except that, where any provision of this chapter imposes restrictions
different from those imposed by any other ordinance, rule or regulation
or other provision of law, the more restrictive provisions or higher
standards shall control.
Unless specifically defined below, words or
phrases used in this chapter shall be interpreted so as to give them
the meaning they have in common usage and to give this chapter its
most reasonable application. The definitions below are the same as
or based on the corresponding definitions in the stormwater management
rules at N.J.A.C. 7:8-1.2.
Those areas within boundaries incorporated by reference or
revised by the Department in accordance with N.J.A.C. 7:7-13.16.
[Amended 3-9-2021 by Ord.
No. 21-007]
The map used by the Department to identify the location of
coastal planning areas, CAFRA centers, CAFRA cores, and CAFRA nodes.
The CAFRA Planning Map is available on the Department's Geographic
Information System (GIS).
[Amended 3-9-2021 by Ord.
No. 21-007]
An infiltration system, sand filter designed to infiltrate,
standard constructed wetland, or wet pond, established in accordance
with N.J.A.C. 7:8-4.2(c)14, that is designed and constructed in accordance
with the New Jersey Stormwater Best Management Practices Manual, or
an alternate design, approved in accordance with N.J.A.C. 7:8-5.2(g),
for an infiltration system, sand filter designed to infiltrate, standard
constructed wetland, or wet pond and that complies with the requirements
of this chapter.
[Added 3-9-2021 by Ord.
No. 21-007]
The increase in soil bulk density.
A pedestrian-oriented area of commercial and civic uses serving
the surrounding municipality, generally including housing and access
to public transportation.
An agency designated by the County Board of Chosen Freeholders
to review municipal stormwater management plans and implementing ordinance(s).
The county review agency may either be:
The New Jersey Department of Environmental Protection.
A state development and redevelopment plan center as designated
by the State Planning Commission, such as urban, regional, town, village,
or hamlet.
A person professionally qualified and duly licensed in New
Jersey to perform engineering services that may include, but are not
necessarily be limited to, development of project requirements, creation
and development of project design and preparation of drawings and
specifications.
The division of a parcel of land into two or more parcels,
the construction, reconstruction, conversion, structural alteration,
relocation or enlargement of any building or structure, any mining
excavation or landfill, and any use or change in the use of any building
or other structure, or land or extension of use of land, by any person,
for which permission is required under the Municipal Land Use Law,
N.J.S.A. 40:55D-1 et seq. In the case of development of agricultural
lands, "development" means any activity that requires a state permit;
any activity reviewed by the County Agricultural Board (CAB) and the
State Agricultural Development Committee (SADC), and municipal review
of any activity not exempted by the Right to Farm Act, N.J.S.A 4:1C-1
et seq.
The placement or reconstruction of impervious surface or
motor vehicle surface, or exposure and/or movement of soil or bedrock
or clearing, cutting, or removing of vegetation. Milling and repaving
is not considered disturbance for the purposes of this definition.
[Added 3-9-2021 by Ord.
No. 21-007]
A geographic area within which stormwater, sediments or dissolved
materials drain to a particular receiving waterbody or to a particular
point along a receiving waterbody.
Neighborhoods designated by the Urban Coordinating Council
"in consultation and in conjunction with" the New Jersey Redevelopment
Authority pursuant to N.J.S.A 55:19-69.
[Amended 3-9-2021 by Ord.
No. 21-007]
The following areas where the physical alteration of the
land is in some way restricted, either through regulation, easement,
deed restriction or ownership, such as: wetlands, floodplains, threatened
and endangered species sites or designated habitats, and parks and
preserves. Habitats of endangered or threatened species are identified
using the Department's Landscape Project as approved by the Department's
Endangered and Nongame Species Program.
[Added 3-9-2021 by Ord.
No. 21-007]
An area or feature which is of significant environmental
value, including but not limited to, stream corridors; natural heritage
priority sites; habitat of endangered or threatened species; large
areas of contiguous open space or upland forest; steep slopes; and
wellhead protection and groundwater recharge areas. Habitats of endangered
or threatened species are identified using the Department's Landscape
Project as approved by the Department's Endangered and Nongame Species
Program.
The detachment and movement of soil or rock fragments by
water, wind, ice or gravity.
A stormwater management measure that manages stormwater close
to its source by:
[Added 3-9-2021 by Ord.
No. 21-007]
An area within which water drains to a particular receiving
surface water body, also known as a subwatershed, which is identified
by a fourteen-digit hydrologic unit boundary designation, delineated
within New Jersey by the United States Geological Survey.
A surface that has been covered with a layer of material
so that it is highly resistant to infiltration by water.
The process by which water seeps into the soil from precipitation.
An individual development, as well as multiple developments
that individually or collectively result in:
[Amended 3-9-2021 by Ord.
No. 21-007]
The disturbance of one or more acres of land since February
2, 2004;
The creation of 1/4 acre or more of regulated impervious surface
since February 2, 2004;
The creation of 1/4 acre or more of regulated motor vehicle
surface since March 2, 2021; or
A combination of Subsections (2) and (3) above that totals an
area of 1/4 acre or more. The same surface shall not be counted twice
when determining if the combination area equals 1/4 acre or more.
|
"Major development" includes all developments that are part
of a common plan of development or sale (for example, phased residential
development) that collectively or individually meet any one or more
of Subsection (1), (2), (3), or (4) above. Projects undertaken by
any government agency that otherwise meet the definition of "major
development" but which do not require approval under the Municipal
Land Use Law, N.J.S.A. 40:55D-1 et seq., are also considered major
development.
|
Land vehicles propelled other than by muscular power, such
as automobiles, motorcycles, autocycles, and low speed vehicles. For
the purposes of this definition, motor vehicle does not include farm
equipment, snowmobiles, allterrain vehicles, motorized wheelchairs,
go-carts, gas buggies, golf carts, ski-slope grooming machines, or
vehicles that run only on rails or tracks.
[Added 3-9-2021 by Ord.
No. 21-007]
Any pervious or impervious surface that is intended to be
used by "motor vehicles" and/or aircraft, and is directly exposed
to precipitation including, but not limited to, driveways, parking
areas, parking garages, roads, racetracks, and runways.
[Added 3-9-2021 by Ord.
No. 21-007]
Any city, borough, town, township, or village.
A conveyance or system of conveyances (including roads with
drainage systems, municipal streets, catch basins, curbs, gutters,
ditches, man-made channels, or storm drains) that is owned or operated
by the City of Paterson or other public body and that is designed
and used for collecting and conveying stormwater. MS4s do not include
combined sewer systems, which are sewer systems that are designed
to carry sanitary sewage at all times and to collect and transport
stormwater from streets and other sources.
[Added 10-3-2017 by Ord.
No. 17-072]
The manual maintained by the Department providing, in part, design specifications, removal rates, calculation methods, and soil testing procedures approved by the Department as being capable of contributing to the achievement of the stormwater management standards specified in this chapter. The BMP Manual is periodically amended by the Department as necessary to provide design specifications on additional best management practices and new information on already included practices reflecting the best available current information regarding the particular practice and the Department's determination as to the ability of that best management practice to contribute to compliance with the standards contained in this chapter. Alternative stormwater management measures, removal rates, or calculation methods may be utilized, subject to any limitations specified in this chapter, provided the design engineer demonstrates to the municipality, in accordance with § 433-4I of this chapter and N.J.A.C. 7:8-5.2(g), that the proposed measure and its design will contribute to achievement of the design and performance standards established by this chapter.
[Added 3-9-2021 by Ord.
No. 21-007]
An area designated by the State Planning Commission, concentrating
facilities and activities which are not organized in a compact form.
A chemical element or compound, such as nitrogen or phosphorus,
which is essential to and promotes the development of organisms.
Any individual, corporation, company, partnership, firm,
association, the City of Paterson or political subdivision of this
state subject to municipal jurisdiction pursuant to the Municipal
Land Use Law, N.J.S.A. 40:55D-1 et seq.
Any dredged spoil, solid waste, incinerator residue, filter
backwash, sewage, garbage, refuse, oil, grease, sewage sludge, munitions,
chemical wastes, biological materials, medical wastes, radioactive
substance [except those regulated under the Atomic Energy Act of 1954,
as amended (42 U.S.C. § 2011 et seq.)], thermal waste, wrecked
or discarded equipment, rock, sand, cellar dirt, industrial, municipal,
agricultural, and construction waste or runoff, or other residue discharged
directly or indirectly to the land, groundwaters or surface waters
of the state or to a domestic treatment works. "Pollutant" includes
both hazardous and nonhazardous pollutants.
The amount of water from precipitation that infiltrates into
the ground and is not evapotranspired.
Any waste container that a person controls, whether owned,
leased, or operated, including dumpsters, trash cans, garbage pails,
and plastic trash bags.
[Added 10-3-2017 by Ord.
No. 17-072]
Any of the following, alone or in combination:
[Added 3-9-2021 by Ord.
No. 21-007]
A net increase of impervious surface;
The total area of impervious surface collected by a new stormwater
conveyance system (for the purpose of this definition, a "new stormwater
conveyance system" is a stormwater conveyance system that is constructed
where one did not exist immediately prior to its construction or an
existing system for which a new discharge location is created);
The total area of impervious surface proposed to be newly collected
by an existing stormwater conveyance system; and/or
The total area of impervious surface collected by an existing
stormwater conveyance system where the capacity of that conveyance
system is increased.
Any of the following, alone or in combination:
[Added 3-9-2021 by Ord.
No. 21-007]
The total area of motor vehicle surface that is currently receiving
water;
A net increase in motor vehicle surface; and/or
Quality treatment either by vegetation or soil, by an existing
stormwater management measure, or by treatment at a wastewater treatment
plant, where the water quality treatment will be modified or removed.
Solid material, mineral or organic, that is in suspension,
is being transported or has been moved from its site of origin by
air, water or gravity as a product of erosion.
The lot or lots upon which a major development is to occur
or has occurred.
All unconsolidated mineral and organic material of any origin.
An area delineated on the State Plan Policy Map and adopted
by the State Planning Commission that is intended to be the focus
for much of the state's future redevelopment and revitalization efforts.
The geographic application of the State Development and Redevelopment
Plan's goals and statewide policies, and the official map of these
goals and policies.
An opening in a storm drain used to collect stormwater runoff
and includes, but is not limited to, a grate inlet, curb-opening inlet,
slotted inlet, and combination inlet.
[Added 10-3-2017 by Ord.
No. 17-072]
Water resulting from precipitation (including rain and snow)
that runs off the land's surface, is transmitted to the subsurface,
or is captured by separate storm sewers or other sewage or drainage
facilities, or conveyed by snow removal equipment.
An excavation or embankment and related areas designed to
retain stormwater runoff. A stormwater management basin may either
be normally dry (that is, a detention basin or infiltration basin),
retain water in a permanent pool (a retention basin), or be planted
mainly with wetland vegetation (most constructed stormwater wetlands).
Any structural or nonstructural strategy, practice, technology,
process, program, or other method intended to control or reduce stormwater
runoff and associated pollutants, or to induce or control the infiltration
or groundwater recharge of stormwater or to eliminate illicit or illegal
nonstormwater discharges into stormwater conveyances.
A public body authorized by legislation to prepare stormwater
management plans.
[Added 3-9-2021 by Ord.
No. 21-007]
The geographic area for which a stormwater management planning
agency is authorized to prepare stormwater management plans, or a
specific portion of that area identified in a stormwater management
plan prepared by that agency.
[Added 3-9-2021 by Ord.
No. 21-007]
Water flow on the surface of the ground or in storm sewers,
resulting from precipitation.
A flood hazard area in which the flood elevation resulting
from the two-, ten-, or 100-year storm, as applicable, is governed
by tidal flooding from the Atlantic Ocean. Flooding in a tidal flood
hazard area may be contributed to, or influenced by, stormwater runoff
from inland areas, but the depth of flooding generated by the tidal
rise and fall of the Atlantic Ocean is greater than flooding from
any fluvial sources. In some situations, depending upon the extent
of the storm surge from a particular storm event, a flood hazard area
may be tidal in the 100-year storm, but fluvial in more frequent storm
events.
[Added 3-9-2021 by Ord.
No. 21-007]
A neighborhood given priority access to state resources through
the New Jersey Redevelopment Authority.
A zone designated by the New Jersey Enterprise Zone Authority
pursuant to the New Jersey Urban Enterprise Zones Act, N.J.S.A. 52:27H-60
et seq.
Previously developed portions of areas:
A structure within, or adjacent to, a water, which intentionally
or coincidentally alters the hydraulic capacity, the flood elevation
resulting from the two-, ten-, or 100-year storm, flood hazard area
limit, and/or floodway limit of the water. Examples of a water control
structure may include a bridge, culvert, dam, embankment, ford (if
above grade), retaining wall, and weir.
[Added 3-9-2021 by Ord.
No. 21-007]
The ocean and its estuaries, all springs, streams, wetlands,
and bodies of surface or ground water, whether natural or artificial,
within the boundaries of the State of New Jersey or subject to its
jurisdiction.
An area that is inundated or saturated by surface water or
groundwater at a frequency and duration sufficient to support, and
that under normal circumstances does support, a prevalence of vegetation
typically adapted for life in saturated soil conditions, commonly
known as "hydrophytic vegetation."
Design and performance standards for stormwater
management measures.
A.
Stormwater management measures for major development shall be developed to meet the erosion control, groundwater recharge, stormwater runoff quantity, and stormwater runoff quality standards in § 433-4. To the maximum extent practicable, these standards shall be met by incorporating nonstructural stormwater management strategies into the design. If these strategies alone are not sufficient to meet these standards, structural stormwater management measures necessary to meet these standards shall be incorporated into the design.
B.
The standards in this chapter apply only to new major
development and are intended to minimize the impact of stormwater
runoff on water quality and water quantity in receiving water bodies
and maintain groundwater recharge. The standards do not apply to new
major development to the extent that alternative design and performance
standards are applicable under a regional stormwater management plan
or water quality management plan adopted in accordance with Department
rules.
C.
Storm drain inlets, identified in § 433-11 below, shall comply with the following standards to control passage of solid and floatable materials through storm drain inlets. For purposes of this subsection, "solid and floatable materials" means sediment, debris, trash, and other floating, suspended, or settleable solids. For exemptions, see Subsection C(3) below.
[Added 10-3-2017 by Ord.
No. 17-072]
(1)
Design engineers shall use either of the following grates whenever
they use a grate in pavement or another ground surface to collect
stormwater from that surface into a storm drain or surface water body
under that grate:
(a)
The New Jersey Department of Transportation (NJDOT) bicycle
safe grate, which is described in Chapter 2.4 of the NJDOT Bicycle
Compatible Roadways and Bikeways Planning and Design Guidelines (April
1996); or
(b)
A different grate, if each individual clear space in that grate
has an area of no more than 7.0 square inches, or is no greater than
0.5 inch across the smallest dimension.
Examples of grates subject to this standard include grates in
grate inlets, the grates (non-curb-opening) of combination inlets,
grates on storm sewer manholes, ditch grates, trench grates, and grates
of spacer bars in slotted drains. Examples of ground surfaces include
surfaces of roads (including bridges), driveways, parking areas, bikeways,
plazas, sidewalks, lawns, fields, open channels, and stormwater basin
floors.
(2)
Whenever design engineers use a curb-opening inlet, the clear space
in that curb opening (or each individual clear space, if the curb
opening has two or more clear spaces) shall have an area of no more
than 7.0 square inches, or be no greater than 2.0 inches across the
smallest dimension.
(3)
This standard does not apply:
(a)
Where the Municipal Engineer agrees that this standard would
cause inadequate hydraulic performance that could not practicably
be overcome by using additional or larger storm drain inlets that
meet these standards;
(b)
Where the flows are conveyed through any device (e.g., end of
pipe netting facility, manufactured treatment device, or a catch basin
hood) that is designed, at a minimum, to prevent delivery of all solid
and floatable materials that could not pass through one of the following:
(c)
Where flows are conveyed through a trash rack that has parallel
bars with one-inch spacing between the bars; or
(d)
Where the New Jersey Department of Environmental Protection
determines, pursuant to the New Jersey Register of Historic Places
Rules at N.J.A.C. 7:4-7.2(c), that action to meet this standard is
an undertaking that constitutes an encroachment or will damage or
destroy the New Jersey Register listed historic property.
A.
The development shall incorporate a maintenance plan for the stormwater management measures incorporated into the design of a major development in accordance with § 433-10.
B.
Stormwater management measures shall avoid adverse
impacts of concentrated flow on habitat for threatened and endangered
species as documented in the Department' Landscape Project or Natural
Heritage Database established under N.J.S.A. 13:1B-15.147 through
15.150, particularly Helonias bullata (swamp pink) and/or Clemmys
muhlnebergi (bog turtle).
C.
The following linear development projects are exempt from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements of Subsections F and G.
(1)
The construction of an underground utility line, provided
that the disturbed areas are revegetated upon completion;
(2)
The construction of an aboveground utility line, provided
that the existing conditions are maintained to the maximum extent
practicable; and
(3)
The construction of a public pedestrian access, such
as a sidewalk or trail with a maximum width of 14 feet, provided that
the access is made of permeable material.
D.
A waiver from strict compliance from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements of Subsections F and G may be obtained for the enlargement of an existing public roadway or railroad or the construction or enlargement of a public pedestrian access, provided that the following conditions are met:
(1)
The applicant demonstrates that there is a public
need for the project that cannot be accomplished by any other means;
(4)
The applicant demonstrates that it does not own or have other rights to areas, including the potential to obtain through condemnation lands not falling under Subsection D(3) above within the upstream drainage area of the receiving stream, that would provide additional opportunities to mitigate the requirements of Subsections F and G that were not achievable on site.
E.
Nonstructural stormwater management strategies.
(1)
To the maximum extent practicable, the standards in Subsection F and G shall be met by incorporating nonstructural stormwater management strategies set forth in this subsection into the design. The applicant shall identify the nonstructural measures incorporated into the design of the project. If the applicant contends that it is not feasible for engineering, environmental, or safety reasons to incorporate any nonstructural stormwater management measures identified in Subsection E(2) below into the design of a particular project, the applicant shall identify the strategy considered and provide a basis for the contention.
(2)
Nonstructural stormwater management strategies incorporated
into site design shall:
(a)
Protect areas that provide water quality benefits
or areas particularly susceptible to erosion and sediment loss.
(b)
Minimize impervious surfaces and break up or
disconnect the flow of runoff over impervious surfaces.
(c)
Maximize the protection of natural drainage
features and vegetation.
(d)
Minimize the decrease in the time of concentration
from preconstruction to postconstruction. "Time of concentration"
is defined as the time it takes for runoff to travel from the hydraulically
most distant point of the watershed to the point of interest within
a watershed.
(e)
Minimize land disturbance, including clearing
and grading.
(f)
Minimize soil compaction.
(g)
Provide low-maintenance landscaping that encourages
retention and planting of native vegetation and minimizes the use
of lawns, fertilizers and pesticides.
(h)
Provide vegetated open-channel conveyance systems
discharging into and through stable vegetated areas.
(i)
Provide other source controls to prevent or
minimize the use or exposure of pollutants at the site in order to
prevent or minimize the release of those pollutants into stormwater
runoff. Such source controls include, but are not limited to:
[1]
Site design features that help to prevent accumulation of trash and debris in drainage systems, including features that satisfy Subsection E(3) below;
[2]
Site design features that help to prevent discharge
of trash and debris from drainage systems;
[3]
Site design features that help to prevent and/or
contain spills or other harmful accumulations of pollutants at industrial
or commercial developments; and
[4]
When establishing vegetation after land disturbance,
applying fertilizer in accordance with the requirements established
under the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39
et seq., and implementing rules.
(3)
Site design features identified under Subsection E(2)(i)[2] above shall comply with the following standard to control passage of solid and floatable materials through storm drain inlets. For purposes of this subsection, "solid and floatable materials" means sediment, debris, trash, and other floating, suspended, or settleable solids. For exemptions to this standard see Subsection E(3)(c) below.
(a)
Use of grates.
[1]
Design engineers shall use either of the following
grates whenever they use a grate in pavement or another ground surface
to collect stormwater from that surface into a storm drain or surface
water body under that grate:
[a]
The New Jersey Department of Transportation
(NJDOT) bicycle safe grate, which is described in Chapter 2.4 of the
NJDOT Bicycle Compatible Roadways and Bikeways Planning and Design
Guidelines (April 1996); or
[b]
A different grate, if each individual clear
space in that grate has an area of no more than 7.0 square inches,
or is no greater than 0.5 inch across the smallest dimension.
[2]
Examples of grates subject to this standard
include grates in grate inlets, the grate portion (non-curb-opening
portion) of combination inlets, grates on storm sewer manholes, ditch
grates, trench grates, and grates of spacer bars in slotted drains.
Examples of ground surfaces include surfaces of roads (including bridges),
driveways, parking areas, bikeways, plazas, sidewalks, lawns, fields,
open channels, and stormwater basin floors.
(b)
Whenever design engineers use a curb-opening
inlet, the clear space in that curb opening (or each individual clear
space, if the curb opening has two or more clear spaces) shall have
an area of no more than 7.0 square inches, or be no greater than 2.0
inches across the smallest dimension.
(c)
This standard does not apply:
[1]
Where the review agency determines that this
standard would cause inadequate hydraulic performance that could not
practicably be overcome by using additional or larger storm drain
inlets that meet these standards;
[2]
Where flows from the water quality design storm as specified in Subsection G(1) are conveyed through any device (e.g., end-of-pipe netting facility, manufactured treatment device, or a catch basin hood) that is designed, at a minimum, to prevent delivery of all solid and floatable materials that could not pass through one of the following:
[3]
Where flows are conveyed through a trash rack that has parallel bars with one-inch spacing between the bars, to the elevation of the water quality design storm as specified in Subsection G(1); or
[4]
Where the New Jersey Department of Environmental
Protection determines, pursuant to the New Jersey Register of Historic
Places Rules at N.J.A.C. 7:4-7.2(c), that action to meet this standard
is an undertaking that constitutes an encroachment or will damage
or destroy the New Jersey Register listed historic property.
(4)
Any land area used as a nonstructural stormwater management measure to meet the performance standards in Subsections F and G shall be dedicated to a government agency, subjected to a conservation restriction filed with the appropriate County Clerk's office, or subject to an approved equivalent restriction that ensures that measure or an equivalent stormwater management measure approved by the reviewing agency is maintained in perpetuity.
F.
Erosion control, groundwater recharge and runoff quantity
standards.
(1)
This subsection contains minimum design and performance
standards to control erosion, encourage and control infiltration and
groundwater recharge and control stormwater runoff quantity impacts
of major development.
(a)
The minimum design and performance standards
for erosion control are those established under the Soil Erosion and
Sediment Control Act, N.J.S.A. 4:24-39 et seq. and implementing rules.
(b)
The minimum design and performance standards
for groundwater recharge are as follows:
[1]
The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 433-5, either:
[a]
Demonstrate through hydrologic and hydraulic
analysis that the site and its stormwater management measures maintain
100% of the average annual preconstruction groundwater recharge volume
for the site; or
[b]
Demonstrate through hydrologic and hydraulic
analysis that the increase of stormwater runoff volume from preconstruction
to postconstruction for the two-year storm is infiltrated.
[2]
This groundwater recharge requirement does not apply to projects within the urban redevelopment area, or to projects subject to Subsection F(1)(b)[3] below.
[3]
The following types of stormwater shall not
be recharged:
[a]
Stormwater from areas of high pollutant loading.
High pollutant loading areas are areas in industrial and commercial
developments where solvents and/or petroleum products are loaded/unloaded,
stored, or applied, areas where pesticides are loaded/unloaded or
stored; areas where hazardous materials are expected to be present
in greater than reportable quantities as defined by the United States
Environmental Protection Agency (EPA) at 40 CFR 302.4; areas where
recharge would be inconsistent with Department approved remedial action
work plan or landfill closure plan and areas with high risks for spills
of toxic materials, such as gas stations and vehicle maintenance facilities;
and
[b]
Industrial stormwater exposed to source material.
"Source material" means any material(s) or machinery, located at an
industrial facility that is directly or indirectly related to process,
manufacturing or other industrial activities, which could be a source
of pollutants in any industrial stormwater discharge to groundwater.
Source materials include, but are not limited to, raw materials, intermediate
products, final products, waste materials, by-products, industrial
machinery and fuels, and lubricants, solvents, and detergents that
are related to process, manufacturing, or other industrial activities
that are exposed to stormwater.
[4]
The design engineer shall assess the hydraulic
impact on the groundwater table and design the site so as to avoid
adverse hydraulic impacts. Potential adverse hydraulic impacts include,
but are not limited to, exacerbating a naturally or seasonally high
water table so as to cause surficial ponding, flooding of basements,
or interference with the proper operation of subsurface sewage disposal
systems and other subsurface structures in the vicinity or downgradient
of the groundwater recharge area.
(c)
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 433-5, complete one of the following:
[1]
Demonstrate through hydrologic and hydraulic
analysis that for stormwater leaving the site, postconstruction runoff
hydrographs for the two-, ten-, and one-hundred-year storm events
do not exceed, at any point in time, the preconstruction runoff hydrographs
for the same storm events;
[2]
Demonstrate through hydrologic and hydraulic
analysis that there is no increase, as compared to the preconstruction
condition, in the peak runoff rates of stormwater leaving the site
for the two-, ten-, and one-hundred-year storm events and that the
increased volume or change in timing of stormwater runoff will not
increase flood damage at or downstream of the site. This analysis
shall include the analysis of impacts of existing land uses and projected
land uses assuming full development under existing zoning and land
use ordinances in the drainage area;
[3]
Design stormwater management measures so that
the postconstruction peak runoff rates for the two-, ten-, and one-hundred-year
storm events are 50%, 75% and 80%, respectively, of the preconstruction
peak runoff rates. The percentages apply only to the postconstruction
stormwater runoff that is attributable to the portion of the site
on which the proposed development or project is to be constructed.
The percentages shall not be applied to postconstruction stormwater
runoff into tidal flood hazard areas if the increased volume of stormwater
runoff will not increase flood damages below the point of discharge;
or
[4]
In tidal flood hazard areas, stormwater runoff quantity analysis in accordance with Subsection F(1)(c)[1], [2] and [3] above shall only be applied if the increased volume of stormwater runoff could increase flood damages below the point of discharge.
(2)
Any application for a new agricultural development that meets the definition of major development in § 433-2 shall be submitted to the appropriate Soil Conservation District for review and approval in accordance with the requirements of this section and any applicable Soil Conservation District guidelines for stormwater runoff quantity and erosion control. For the purposes of this section, "agricultural development" means land uses normally associated with the production of food, fiber and livestock for sale. Such uses do not include the development of land for the processing or sale of food and the manufacturing of agriculturally related products.
G.
Stormwater runoff quality standards.
(1)
Stormwater management measures shall be designed to
reduce the postconstruction load of total suspended solids (TSS) in
stormwater runoff by 80% of the anticipated load from the developed
site, expressed as an annual average. Stormwater management measures
shall only be required for water quality control if an additional
1/4 acre of impervious surface is being proposed on a development
site. The requirement to reduce TSS does not apply to any stormwater
runoff in a discharge regulated under a numeric effluent limitation
for TSS imposed under the New Jersey Pollution Discharge Elimination
System (NJPDES) rules, N.J.A.C. 7:14A, or in a discharge specifically
exempt under a NJPDES permit from this requirement. The water quality
design storm is 1.25 inches of rainfall in two hours. Water quality
calculations shall take into account the distribution of rain from
the water quality design storm, as reflected in Table 1. The calculation
of the volume of runoff may take into account the implementation of
nonstructural and structural stormwater management measures.
|
Table 1: Water Quality Design Storm Distribution
| ||||
|---|---|---|---|---|
|
Time
(minutes)
|
Cumulative Rainfall
(inches)
|
Time
(minutes)
|
Cumulative Rainfall
(inches)
| |
|
0
|
0.0000
|
65
|
0.8917
| |
|
5
|
0.0083
|
70
|
0.9917
| |
|
10
|
0.0166
|
75
|
1.0500
| |
|
15
|
0.0250
|
80
|
1.0840
| |
|
20
|
0.0500
|
85
|
1.1170
| |
|
25
|
0.0750
|
90
|
1.1500
| |
|
30
|
0.1000
|
95
|
1.1750
| |
|
35
|
0.1330
|
100
|
1.2000
| |
|
40
|
0.1660
|
105
|
1.2250
| |
|
45
|
0.2000
|
110
|
1.2334
| |
|
50
|
0.2583
|
115
|
1.2417
| |
|
55
|
0.3583
|
120
|
1.2500
| |
|
60
|
0.6250
| |||
(2)
For purposes of TSS reduction calculations, Table 2 below presents the presumed removal rates for certain BMPs designed in accordance with the New Jersey Stormwater Best Management Practices Manual. The BMP Manual may be obtained from the address identified in § 433-7, or found on the Department's Web site at www.njstormwater.org. The BMP Manual and other sources of technical guidance are listed in § 433-7. TSS reduction shall be calculated based on the removal rates for the BMPs in Table 2 below. Alternative removal rates and methods of calculating removal rates may be used if the design engineer provides documentation demonstrating the capability of these alternative rates and methods to the review agency. A copy of any approved alternative rate or method of calculating the removal rate shall be provided to the Department at the following address: Division of Watershed Management, New Jersey Department of Environmental Protection, PO Box 418, Trenton, New Jersey, 08625-0418.
(3)
If more than one BMP in series is necessary to achieve
the required eighty-percent TSS reduction for a site, the applicant
shall utilize the following formula to calculate TSS reduction:
|
R = A + B - (AXB)/100
| |
|
Where:
| |
|
R = Total TSS percent load removal from application
of both BMPs.
| |
|
A = The TSS percent removal rate applicable
to the first BMP.
| |
|
B = The TSS percent removal rate applicable
to the second BMP.
|
|
Table 2: TSS Removal Rates for BMPs
| ||
|---|---|---|
|
Best Management Practice
|
TSS Percent Removal Rate
| |
|
Bioretention systems
|
90%
| |
|
Constructed stormwater wetland
|
90%
| |
|
Extended detention basin
|
40% to 90%
| |
|
Infiltration structure
|
80%
| |
|
Manufactured treatment device
|
See § 433-6C
| |
|
Sand filter
|
80%
| |
|
Vegetative filter strip
|
60% to 80%
| |
|
Wet pond
|
50% to 90%
| |
(4)
If there is more than one on-site drainage area, the
eighty-percent TSS removal rate shall apply to each drainage area,
unless the runoff from the subareas converge on site, in which case
the removal rate can be demonstrated through a calculation using a
weighted average.
(5)
Stormwater management measures shall also be designed to reduce, to the maximum extent feasible, the postconstruction nutrient load of the anticipated load from the developed site in stormwater runoff generated from the water quality design storm. In achieving reduction of nutrients to the maximum extent feasible, the design of the site shall include nonstructural strategies and structural measures that optimize nutrient removal while still achieving the performance standards in Subsections F and G.
(6)
Additional information and examples are contained in the New Jersey Stormwater Best Management Practices Manual, which may be obtained from the address identified in § 433-7.
(7)
In accordance with the definition of FW1 at N.J.A.C.
7:9B-1.4, stormwater management measures shall be designed to prevent
any increase in stormwater runoff to waters classified as FW1.
(8)
Special water resource protection areas shall be established
along all waters designated Category One at N.J.A.C. 7:9B, and perennial
or intermittent streams that drain into or upstream of the Category
One waters as shown on the USGS Quadrangle Maps or in the County Soil
Surveys, within the associated HUC14 drainage area. These areas shall
be established for the protection of water quality, aesthetic value,
exceptional ecological significance, exceptional recreational significance,
exceptional water supply significance, and exceptional fisheries significance
of those established Category One waters. These areas shall be designated
and protected as follows:
(a)
The applicant shall preserve and maintain a
special water resource protection area in accordance with one of the
following:
[1]
A three-hundred-foot special water resource
protection area shall be provided on each side of the waterway, measured
perpendicular to the waterway from the top of the bank outwards or
from the center line of the waterway where the bank is not defined,
consisting of existing vegetation or vegetation allowed to follow
natural succession is provided.
[2]
Encroachment within the designated special water resource protection area under Subsection G(8)(a)[1] above shall only be allowed where previous development or disturbance has occurred (for example, active agricultural use, parking area or maintained lawn area). The encroachment shall only be allowed where the applicant demonstrates that the functional value and overall condition of the special water resource protection area will be maintained to the maximum extent practicable. In no case shall the remaining special water resource protection area be reduced to less than 150 feet as measured perpendicular to the top of bank of the waterway or center line of the waterway where the bank is undefined. All encroachments proposed under this subsection shall be subject to review and approval by the Department.
(b)
All stormwater shall be discharged outside of
and flow through the special water resource protection area and shall
comply with the Standard for Off-Site Stability in the Standards For
Soil Erosion and Sediment Control in New Jersey, established under
the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39 et seq.
(c)
If stormwater discharged outside of and flowing
through the special water resource protection area cannot comply with
the Standard For Off-Site Stability in the Standards for Soil Erosion
and Sediment Control in New Jersey, established under the Soil Erosion
and Sediment Control Act, N.J.S.A. 4:24-39 et seq., then the stabilization
measures in accordance with the requirements of the above standards
may be placed within the special water resource protection area, provided
that:
[1]
Stabilization measures shall not be placed within
150 feet of the Category One waterway;
[2]
Stormwater associated with discharges allowed
by this section shall achieve a ninety-five-percent TSS postconstruction
removal rate;
[3]
Temperature shall be addressed to ensure no
impact on the receiving waterway;
[4]
The encroachment shall only be allowed where
the applicant demonstrates that the functional value and overall condition
of the special water resource protection area will be maintained to
the maximum extent practicable;
[5]
A conceptual project design meeting shall be
held with the appropriate Department staff and Soil Conservation District
staff to identify necessary stabilization measures; and
[6]
All encroachments proposed under this section
shall be subject to review and approval by the Department.
(d)
A stream corridor protection plan may be developed by a regional stormwater management planning committee as an element of a regional stormwater management plan, or by a municipality through an adopted municipal stormwater management plan. If a stream corridor protection plan for a waterway subject to Subsection G(8) has been approved by the Department of Environmental Protection, then the provisions of the plan shall be the applicable special water resource protection area requirements for that waterway. A stream corridor protection plan for a waterway subject to Subsection G(8) shall maintain or enhance the current functional value and overall condition of the special water resource protection area as defined in Subsection G(8)(a)[1] above. In no case shall a stream corridor protection plan allow the reduction of the special water resource protection area to less than 150 feet as measured perpendicular to the waterway subject to this subsection.
H.
Tables 1 through 3 below summarize the ability of stormwater best management practices identified and described in the New Jersey Stormwater Best Management Practices Manual to satisfy the green infrastructure, groundwater recharge, stormwater runoff quality and stormwater runoff quantity standards specified in § 433-4R, S, T and U. When designed in accordance with the most current version of the New Jersey Stormwater Best Management Practices Manual, the stormwater management measures found at N.J.A.C. 7:8-5.2 (f) Tables 5-1, 5-2 and 5-3 and listed below in Tables 1, 2 and 3 are presumed to be capable of providing stormwater controls for the design and performance standards as outlined in the tables below. Upon amendments of the New Jersey Stormwater Best Management Practices to reflect additions or deletions of BMPs meeting these standards, or changes in the presumed performance of BMPs designed in accordance with the New Jersey Stormwater BMP Manual, the Department shall publish in the New Jersey Registers a notice of administrative change revising the applicable table. The most current version of the BMP Manual can be found on the Department's website at: https://njstormwater.org/bmp_manual2.htm.
[Added 3-9-2021 by Ord.
No. 21-007]
I.
Where the BMP tables in the NJ Stormwater Management Rule are different
due to updates or amendments with the tables in this ordinance the
BMP Tables in the Stormwater Management rule at N.J.A.C. 7:8-5.2(f)
shall take precedence.
[Added 3-9-2021 by Ord.
No. 21-007]
|
Table 1
Green Infrastructure BMPs for Groundwater Recharge, Stormwater
Runoff Quality, and/or Stormwater Runoff Quantity
| ||||
|---|---|---|---|---|
|
Best Management Practice
|
Stormwater Runoff Quality TSS Removal Rate
(percent)
|
Stormwater Runoff Quantity
|
Groundwater Recharge
|
Minimum Separation from Seasonal High Water Table
(feet)
|
|
Cistern
|
0
|
Yes
|
No
|
—
|
|
Dry well(a)
|
0
|
No
|
Yes
|
2
|
|
Grass swale
|
50 or less
|
No
|
No
|
2(e)
1(f)
|
|
Green roof
|
0
|
Yes
|
No
|
—
|
|
Manufactured treatment device(a)(g)
|
50 or 80
|
No
|
No
|
Dependent upon the device
|
|
Pervious paving system(a)
|
80
|
Yes
|
Yes(b)
No(c)
|
2(b)
1(c)
|
|
Small-scale bioretention basin(a)
|
80 or 90
|
Yes
|
Yes(b)
No(c)
|
2(b)
1(c)
|
|
Small-scale infiltration basin(a)
|
80
|
Yes
|
Yes
|
2
|
|
Small-scale sand filter
|
80
|
Yes
|
Yes
|
2
|
|
Vegetative filter strip
|
60-80
|
No
|
No
|
—
|
|
Table 2
Green Infrastructure BMPs for Stormwater Runoff Quantity
(or for Groundwater Recharge and/or Stormwater Runoff Quality
with a Waiver or Variance from N.J.A.C. 7:8-5.3)
| ||||
|---|---|---|---|---|
|
Best Management Practice
|
Stormwater Runoff Quality TSS Removal Rate
(percent)
|
Stormwater Runoff Quantity
|
Groundwater Recharge
|
Minimum Separation from Seasonal High Water Table
(feet)
|
|
Bioretention system
|
80 or 90
|
Yes
|
Yes(b)
No(c)
|
2(b)
1(c)
|
|
Infiltration basin
|
80
|
Yes
|
Yes
|
2
|
|
Sand filter(b)
|
80
|
Yes
|
Yes
|
2
|
|
Standard constructed wetland
|
90
|
Yes
|
No
|
N/A
|
|
Wet pond(d)
|
50-90
|
Yes
|
No
|
N/A
|
|
Table 3
BMPs for Groundwater Recharge, Stormwater Runoff Quality, and/or
Stormwater Runoff Quantity
only with a Waiver or Variance from N.J.A.C. 7:8-5.3
| ||||
|---|---|---|---|---|
|
Best Management Practice
|
Stormwater Runoff Quality TSS Removal Rate
(percent)
|
Stormwater Runoff Quantity
|
Groundwater Recharge
|
Minimum Separation from Seasonal High Water Table
(feet)
|
|
Blue roof
|
0
|
Yes
|
No
|
N/A
|
|
Extended detention basin
|
40-60
|
Yes
|
No
|
1
|
|
Manufactured treatment device(h)
|
50 or 80
|
No
|
No
|
Dependent upon the device
|
|
Sand filter(c)
|
80
|
Yes
|
No
|
1
|
|
Subsurface gravel wetland
|
90
|
No
|
No
|
1
|
|
Wet pond
|
50-90
|
Yes
|
No
|
N/A
|
|
Notes to Tables 1, 2, and 3:
| |
|
(a)
|
Subject to the applicable contributory drainage area limitation specified at § 433-4R(2);
|
|
(b)
|
Designed to infiltrate into the subsoil;
|
|
(c)
|
Designed with underdrains;
|
|
(d)
|
Designed to maintain at least a ten-foot-wide area of native
vegetation along at least 50% of the shoreline and to include a stormwater
runoff retention component designed to capture stormwater runoff for
beneficial reuse, such as irrigation;
|
|
(e)
|
Designed with a slope of less than 2%;
|
|
(f)
|
Designed with a slope of equal to or greater than 2%;
|
|
(g)
|
Manufactured treatment devices that meet the definition of "green infrastructure" at § 433-2;
|
|
(h)
|
Manufactured treatment devices that do not meet the definition of "green infrastructure" at § 433-2.
|
J.
An alternative stormwater management measure, alternative removal rate, and/or alternative method to calculate the removal rate may be used if the design engineer demonstrates the capability of the proposed alternative stormwater management measure and/or the validity of the alternative rate or method to the municipality. A copy of any approved alternative stormwater management measure, alternative removal rate, and/or alternative method to calculate the removal rate shall be provided to the Department in accordance with § 433-6B. Alternative stormwater management measures may be used to satisfy the requirements at § 433-4R only if the measures meet the definition of "green infrastructure" at § 433-2. Alternative stormwater management measures that function in a similar manner to a BMP listed at § 433-4R(2) are subject to the contributory drainage area limitation specified at § 433-4R(2) for that similarly functioning BMP. Alternative stormwater management measures approved in accordance with this subsection that do not function in a similar manner to any BMP listed at § 433-4R(2) shall have a contributory drainage area less than or equal to 2.5 acres, except for alternative stormwater management measures that function similarly to cisterns, grass swales, green roofs, standard constructed wetlands, vegetative filter strips, and wet ponds, which are not subject to a contributory drainage area limitation. Alternative measures that function similarly to standard constructed wetlands or wet ponds shall not be used for compliance with the stormwater runoff quality standard unless a variance in accordance with N.J.A.C. 7:8-4.6 or a waiver from strict compliance in accordance with § 433-4D is granted from § 433-4O.
[Added 3-9-2021 by Ord.
No. 21-007]
K.
Whenever the stormwater management design includes one or more BMPs
that will infiltrate stormwater into subsoil, the design engineer
shall assess the hydraulic impact on the groundwater table and design
the site, so as to avoid adverse hydraulic impacts. Potential adverse
hydraulic impacts include, but are not limited to, exacerbating a
naturally or seasonally high water table, so as to cause surficial
ponding, flooding of basements, or interference with the proper operation
of subsurface sewage disposal systems or other subsurface structures
within the zone of influence of the groundwater mound, or interference
with the proper functioning of the stormwater management measure itself.
[Added 3-9-2021 by Ord.
No. 21-007]
L.
Design standards for stormwater management measures are as follows:
[Added 3-9-2021 by Ord.
No. 21-007]
(1)
Stormwater management measures shall be designed to take into account
the existing site conditions, including, but not limited to, environmentally
critical areas; wetlands; flood-prone areas; slopes; depth to seasonal
high water table; soil type, permeability, and texture; drainage area
and drainage patterns; and the presence of solution-prone carbonate
rocks (limestone);
(2)
Stormwater management measures shall be designed to minimize maintenance, facilitate maintenance and repairs, and ensure proper functioning. Trash racks shall be installed at the intake to the outlet structure, as appropriate, and shall have parallel bars with one-inch spacing between the bars to the elevation of the water quality design storm. For elevations higher than the water quality design storm, the parallel bars at the outlet structure shall be spaced no greater than 1/3 the width of the diameter of the orifice or 1/3 the width of the weir, with a minimum spacing between bars of one inch and a maximum spacing between bars of six inches. In addition, the design of trash racks must comply with the requirements of § 433-8C;
(3)
Stormwater management measures shall be designed, constructed, and
installed to be strong, durable, and corrosion-resistant. Measures
that are consistent with the relevant portions of the Residential
Site Improvement Standards at N.J.A.C. 5:21-7.3, 7.4, and 7.5 shall
be deemed to meet this requirement;
(4)
Stormwater management BMPs shall be designed to meet the minimum safety standards for stormwater management BMPs at § 433-8; and
(5)
The size of the orifice at the intake to the outlet from the stormwater
management BMP shall be a minimum of 2 1/2 inches in diameter.
M.
Manufactured treatment devices may be used to meet the requirements of this subchapter, provided the pollutant removal rates are verified by the New Jersey Corporation for Advanced Technology and certified by the Department. Manufactured treatment devices that do not meet the definition of green infrastructure at § 433-2 may be used only under the circumstances described at § 433-4R(4).
[Added 3-9-2021 by Ord.
No. 21-007]
N.
Any application for a new agricultural development that meets the definition of major development at § 433-2 shall be submitted to the Soil Conservation District for review and approval in accordance with the requirements at § 433-4R, S, T and U and any applicable Soil Conservation District guidelines for stormwater runoff quantity and erosion control. For purposes of this subsection, "agricultural development" means land uses normally associated with the production of food, fiber, and livestock for sale. Such uses do not include the development of land for the processing or sale of food and the manufacture of agriculturally related products.
[Added 3-9-2021 by Ord.
No. 21-007]
O.
If there is more than one drainage area, the groundwater recharge, stormwater runoff quality, and stormwater runoff quantity standards at § 433-4S, T and U shall be met in each drainage area, unless the runoff from the drainage areas converge on site and no adverse environmental impact would occur as a result of compliance with any one or more of the individual standards being determined utilizing a weighted average of the results achieved for that individual standard across the affected drainage areas.
[Added 3-9-2021 by Ord.
No. 21-007]
P.
Any stormwater management measure authorized under the municipal stormwater management plan or ordinance shall be reflected in a deed notice recorded in the Office of the Passaic County Clerk. A form of deed notice shall be submitted to the municipality for approval prior to filing. The deed notice shall contain a description of the stormwater management measure(s) used to meet the green infrastructure, groundwater recharge, stormwater runoff quality, and stormwater runoff quantity standards at § 433-4R, S, T and U and shall identify the location of the stormwater management measure(s) in NAD 1983 State Plane New Jersey FIPS 2900 US Feet or Latitude and Longitude in decimal degrees. The deed notice shall also reference the maintenance plan required to be recorded upon the deed pursuant to § 433-10B(5). Prior to the commencement of construction, proof that the above-required deed notice has been filed shall be submitted to the municipality. Proof that the required information has been recorded on the deed shall be in the form of either a copy of the complete recorded document or a receipt from the Clerk or other proof of recordation provided by the recording office. However, if the initial proof provided to the municipality is not a copy of the complete recorded document, a copy of the complete recorded document shall be provided to the municipality within 180 calendar days of the authorization granted by the municipality.
[Added 3-9-2021 by Ord.
No. 21-007]
Q.
A stormwater management measure approved under the municipal stormwater management plan or ordinance may be altered or replaced with the approval of the municipality, if the municipality determines that the proposed alteration or replacement meets the design and performance standards pursuant to § 433-4 and provides the same level of stormwater management as the previously approved stormwater management measure that is being altered or replaced. If an alteration or replacement is approved, a revised deed notice shall be submitted to the municipality for approval and subsequently recorded with the Passaic County Clerk and shall contain a description and location of the stormwater management measure, as well as reference to the maintenance plan, in accordance with § 433-4P above. Prior to the commencement of construction, proof that the above-required deed notice has been filed shall be submitted to the municipality in accordance with § 433-4P above.
[Added 3-9-2021 by Ord.
No. 21-007]
R.
Green infrastructure standards.
[Added 3-9-2021 by Ord.
No. 21-007]
(1)
This subsection specifies the types of green infrastructure BMPs
that may be used to satisfy the groundwater recharge, stormwater runoff
quality, and stormwater runoff quantity standards.
(2)
To satisfy the groundwater recharge and stormwater runoff quality standards at § 433-4S and T, the design engineer shall utilize green infrastructure BMPs identified in Table 1 at § 433-4I and/or an alternative stormwater management measure approved in accordance with § 433-4J. The following green infrastructure BMPs are subject to the following maximum contributory drainage area limitations:
|
Best Management Practice
|
Maximum Contributory Drainage Area
|
|---|---|
|
Dry well
|
1 acre
|
|
Manufactured treatment device
|
2.5 acres
|
|
Pervious pavement systems
|
Area of additional inflow cannot exceed three times the area
occupied by the BMP
|
|
Small-scale bioretention systems
|
2.5 acres
|
|
Small-scale infiltration basin
|
2.5 acres
|
|
Small-scale sand filter
|
2.5 acres
|
(4)
If a variance in accordance with N.J.A.C. 7:8-4.6 or a waiver from strict compliance in accordance with 433-4D is granted from the requirements of this subsection, then BMPs from Table 1, 2, or 3, and/or an alternative stormwater management measure approved in accordance with § 433-4J may be used to meet the groundwater recharge, stormwater runoff quality, and stormwater runoff quantity standards at § 433-4S, T and U.
(5)
For separate or combined storm sewer improvement projects, such as sewer separation, undertaken by a government agency or public utility (for example, a sewerage company), the requirements of this subsection shall only apply to areas owned in fee simple by the government agency or utility, and areas within a right-of-way or easement held or controlled by the government agency or utility; the entity shall not be required to obtain additional property or property rights to fully satisfy the requirements of this subsection. Regardless of the amount of area of a separate or combined storm sewer improvement project subject to the green infrastructure requirements of this subsection, each project shall fully comply with the applicable groundwater recharge, stormwater runoff quality control, and stormwater runoff quantity standards at § 433-4S, T and U, unless the project is granted a waiver from strict compliance in accordance with § 433-4D.
S.
Groundwater recharge standards.
[Added 3-9-2021 by Ord.
No. 21-007]
(1)
This subsection contains the minimum design and performance standards
for groundwater recharge as follows:
(2)
The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 433-5, either:
(a)
Demonstrate through hydrologic and hydraulic analysis that the
site and its stormwater management measures maintain 100% of the average
annual pre-construction groundwater recharge volume for the site;
or
(b)
Demonstrate through hydrologic and hydraulic analysis that the
increase of stormwater runoff volume from pre-construction to post-construction
for the two-year storm is infiltrated.
(3)
This groundwater recharge requirement does not apply to projects within the "urban redevelopment area," or to projects subject to Subsection S(4) below.
(4)
The following types of stormwater shall not be recharged:
(a)
Stormwater from areas of high pollutant loading. High pollutant
loading areas are areas in industrial and commercial developments
where solvents and/or petroleum products are loaded/unloaded, stored,
or applied, areas where pesticides are loaded/unloaded or stored;
areas where hazardous materials are expected to be present in greater
than "reportable quantities" as defined by the United States Environmental
Protection Agency (EPA) at 40 CFR 302.4; areas where recharge would
be inconsistent with Department-approved remedial action work plan
or landfill closure plan and areas with high risks for spills of toxic
materials, such as gas stations and vehicle maintenance facilities;
and
(b)
Industrial stormwater exposed to source material. "Source material"
means any material(s) or machinery, located at an industrial facility,
that is directly or indirectly related to process, manufacturing or
other industrial activities, which could be a source of pollutants
in any industrial stormwater discharge to groundwater. Source materials
include, but are not limited to, raw materials; intermediate products;
final products; waste materials; by-products; industrial machinery
and fuels, and lubricants, solvents, and detergents that are related
to process, manufacturing, or other industrial activities that are
exposed to stormwater.
T.
Stormwater runoff quality standards.
[Added 3-9-2021 by Ord.
No. 21-007]
(1)
This subsection contains the minimum design and performance standards
to control stormwater runoff quality impacts of major development.
Stormwater runoff quality standards are applicable when the major
development results in an increase of 1/4 acre or more of regulated
motor vehicle surface.
(2)
Stormwater management measures shall be designed to reduce the post-construction
load of total suspended solids (TSS) in stormwater runoff generated
from the water quality design storm as follows:
(a)
Eighty percent TSS removal of the anticipated load, expressed
as an annual average shall be achieved for the stormwater runoff from
the net increase of motor vehicle surface.
(b)
If the surface is considered regulated motor vehicle surface
because the water quality treatment for an area of motor vehicle surface
that is currently receiving water quality treatment either by vegetation
or soil, by an existing stormwater management measure, or by treatment
at a wastewater treatment plant is to be modified or removed, the
project shall maintain or increase the existing TSS removal of the
anticipated load expressed as an annual average.
(3)
The requirement to reduce TSS does not apply to any stormwater runoff in a discharge regulated under a numeric effluent limitation for TSS imposed under the New Jersey Pollutant Discharge Elimination System (NJPDES) rules, N.J.A.C. 7:14A, or in a discharge specifically exempt under a NJPDES permit from this requirement. Every major development, including any that discharge into a combined sewer system, shall comply with Subsection T(2) above, unless the major development is itself subject to a NJPDES permit with a numeric effluent limitation for TSS or the NJPDES permit to which the major development is subject exempts the development from a numeric effluent limitation for TSS.
(4)
The water quality design storm is 1.25 inches of rainfall in two
hours. Water quality calculations shall take into account the distribution
of rain from the water quality design storm, as reflected in Table
4, below. The calculation of the volume of runoff may take into account
the implementation of stormwater management measures.
|
Table 4 - Water Quality Design Storm Distribution
| |||||
|---|---|---|---|---|---|
|
Time
(Minutes)
|
Cumulative Rainfall
(Inches)
|
Time
(Minutes)
|
Cumulative Rainfall
(Inches)
|
Time
(Minutes)
|
Cumulative Rainfall
(Inches)
|
|
1
|
0.00166
|
41
|
0.1728
|
81
|
1.0906
|
|
2
|
0.00332
|
42
|
0.1796
|
82
|
1.0972
|
|
3
|
0.00498
|
43
|
0.1864
|
83
|
1.1038
|
|
4
|
0.00664
|
44
|
0.1932
|
84
|
1.1104
|
|
5
|
0.00830
|
45
|
0.2000
|
85
|
1.1170
|
|
6
|
0.00996
|
46
|
0.2117
|
86
|
1.1236
|
|
7
|
0.01162
|
47
|
0.2233
|
87
|
1.1302
|
|
8
|
0.01328
|
48
|
0.2350
|
88
|
1.1368
|
|
9
|
0.01494
|
49
|
0.2466
|
89
|
1.1434
|
|
10
|
0.01660
|
50
|
0.2583
|
90
|
1.1500
|
|
11
|
0.01828
|
51
|
0.2783
|
91
|
1.1550
|
|
12
|
0.01996
|
52
|
0.2983
|
92
|
1.1600
|
|
13
|
0.02164
|
53
|
0.3183
|
93
|
1.1650
|
|
14
|
0.02332
|
54
|
0.3383
|
94
|
1.1700
|
|
15
|
0.02500
|
55
|
0.3583
|
95
|
1.1750
|
|
16
|
0.03000
|
56
|
0.4116
|
96
|
1.1800
|
|
17
|
0.03500
|
57
|
0.4650
|
97
|
1.1850
|
|
18
|
0.04000
|
58
|
0.5183
|
98
|
1.1900
|
|
19
|
0.04500
|
59
|
0.5717
|
99
|
1.1950
|
|
20
|
0.05000
|
60
|
0.6250
|
100
|
1.2000
|
|
21
|
0.05500
|
61
|
0.6783
|
101
|
1.2050
|
|
22
|
0.06000
|
62
|
0.7317
|
102
|
1.2100
|
|
23
|
0.06500
|
63
|
0.7850
|
103
|
1.2150
|
|
24
|
0.07000
|
64
|
0.8384
|
104
|
1.2200
|
|
25
|
0.07500
|
65
|
0.8917
|
105
|
1.2250
|
|
26
|
0.08000
|
66
|
0.9117
|
106
|
1.2267
|
|
27
|
0.08500
|
67
|
0.9317
|
107
|
1.2284
|
|
28
|
0.09000
|
68
|
0.9517
|
108
|
1.2300
|
|
29
|
0.09500
|
69
|
0.9717
|
109
|
1.2317
|
|
30
|
0.10000
|
70
|
0.9917
|
110
|
1.2334
|
|
31
|
0.10660
|
71
|
1.0034
|
111
|
1.2351
|
|
32
|
0.11320
|
72
|
1.0150
|
112
|
1.2367
|
|
33
|
0.11980
|
73
|
1.0267
|
113
|
1.2384
|
|
34
|
0.12640
|
74
|
1.0383
|
114
|
1.2400
|
|
35
|
0.13300
|
75
|
1.0500
|
115
|
1.2417
|
|
36
|
0.13960
|
76
|
1.0568
|
116
|
1.2434
|
|
37
|
0.14620
|
77
|
1.0636
|
117
|
1.2450
|
|
38
|
0.15280
|
78
|
1.0704
|
118
|
1.2467
|
|
39
|
0.15940
|
79
|
1.0772
|
119
|
1.2483
|
|
40
|
0.16600
|
80
|
1.0840
|
120
|
1.2500
|
(5)
If more than one BMP in series is necessary to achieve the required
80% TSS reduction for a site, the applicant shall utilize the following
formula to calculate TSS reduction:
|
R = A + B - (A x B)/100
|
|
Where:
| ||
|
R
|
=
|
total TSS percent load removal from application of both BMPs;
|
|
A
|
=
|
the TSS percent removal rate applicable to the first BMP;
|
|
B
|
=
|
the TSS percent removal rate applicable to the second BMP.
|
(6)
Stormwater management measures shall also be designed to reduce, to the maximum extent feasible, the post-construction nutrient load of the anticipated load from the developed site in stormwater runoff generated from the water quality design storm. In achieving reduction of nutrients to the maximum extent feasible, the design of the site shall include green infrastructure BMPs that optimize nutrient removal while still achieving the performance standards in § 433-4S, T and U.
(7)
In accordance with the definition of FW1 at N.J.A.C. 7:9B-1.4, stormwater
management measures shall be designed to prevent any increase in stormwater
runoff to waters classified as FW1.
(8)
The Flood Hazard Area Control Act Rules at N.J.A.C. 7:13-4.1(c)1
establish 300-foot riparian zones along Category One waters, as designated
in the Surface Water Quality Standards at N.J.A.C. 7:9B, and certain
upstream tributaries to Category One waters. A person shall not undertake
a major development that is located within or discharges into a 300-foot
riparian zone without prior authorization from the Department under
N.J.A.C. 7:13.
(9)
Pursuant to the Flood Hazard Area Control Act Rules at N.J.A.C. 7:13-11.2(j)3.i,
runoff from the water quality design storm that is discharged within
a 300-foot riparian zone shall be treated in accordance with this
subsection to reduce the post-construction load of total suspended
solids by 95% of the anticipated load from the developed site, expressed
as an annual average.
(10)
This stormwater runoff quality standards do not apply to the
construction of one individual single-family dwelling, provided that
it is not part of a larger development or subdivision that has received
preliminary or final site plan approval prior to December 3, 2018,
and that the motor vehicle surfaces are made of permeable material(s)
such as gravel, dirt, and/or shells.
U.
Stormwater runoff quantity standards.
(1)
This subsection contains the minimum design and performance standards
to control stormwater runoff quantity impacts of major development.
(2)
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 433-5, complete one of the following:
(a)
Demonstrate through hydrologic and hydraulic analysis that for
stormwater leaving the site, post-construction runoff hydrographs
for the two-, ten-, and 100-year storm events do not exceed, at any
point in time, the pre-construction runoff hydrographs for the same
storm events;
(b)
Demonstrate through hydrologic and hydraulic analysis that there
is no increase, as compared to the pre-construction condition, in
the peak runoff rates of stormwater leaving the site for the two-,
ten- and 100-year storm events and that the increased volume or change
in timing of stormwater runoff will not increase flood damage at or
downstream of the site. This analysis shall include the analysis of
impacts of existing land uses and projected land uses assuming full
development under existing zoning and land use ordinances in the drainage
area;
(c)
Design stormwater management measures so that the post-construction
peak runoff rates for the two-, ten- and 100-year storm events are
50%, 75% and 80%, respectively, of the pre-construction peak runoff
rates. The percentages apply only to the post-construction stormwater
runoff that is attributable to the portion of the site on which the
proposed development or project is to be constructed; or
(d)
In tidal flood hazard areas, stormwater runoff quantity analysis
in accordance with Subsection U(1)(a), (b) and (c) above is required
unless the design engineer demonstrates through hydrologic and hydraulic
analysis that the increased volume, change in timing, or increased
rate of the stormwater runoff, or any combination of the three will
not result in additional flood damage below the point of discharge
of the major development. No analysis is required if the stormwater
is discharged directly into any ocean, bay, inlet, or the reach of
any watercourse between its confluence with an ocean, bay, or inlet
and downstream of the first water control structure.
(3)
The stormwater runoff quantity standards shall be applied at the
site's boundary to each abutting lot, roadway, watercourse, or
receiving storm sewer system.
A.
Stormwater runoff shall be calculated in accordance
with the following:
(1)
The design engineer shall calculate runoff using one
of the following methods:
[Amended 3-9-2021 by Ord. No. 21-007]
(a)
The USDA Natural Resources Conservation Service (NRCS) methodology,
including the NRCS Runoff Equation and Dimensionless Unit Hydrograph,
as described in Chapters 7, 9, 10, 15 and 16 Part 630, Hydrology National
Engineering Handbook, incorporated herein by reference as amended
and supplemented. This methodology is additionally described in Technical
Release 55 - Urban Hydrology for Small Watersheds (TR-55), dated June
1986, incorporated herein by reference as amended and supplemented.
Information regarding the methodology is available from the Natural
Resources Conservation Service website at: https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb10441
71.pdf or at United States Department of Agriculture Natural Resources
Conservation Service, 220 Davison Avenue, Somerset, New Jersey 08873;
or
(b)
The Rational Method for peak flow and the Modified Rational
Method for hydrograph computations. The rational and modified rational
methods are described in "Appendix A-9 Modified Rational Method" in
the Standards for Soil Erosion and Sediment Control in New Jersey,
January 2014. This document is available from the State Soil Conservation
Committee or any of the Soil Conservation Districts listed at N.J.A.C.
2:90-1.3(a)3. The location, address, and telephone number for each
Soil Conservation District is available from the State Soil Conservation
Committee, PO Box 330, Trenton, New Jersey 08625. The document is
also available at: http://www.nj.gov/agriculture/divisions/anr/pdf/2014NJSoilErosionCon
trolStandardsComplete.pdf.
(2)
For the purpose of calculating runoff coefficients and groundwater recharge, there is a presumption that the preconstruction condition of a site or portion thereof is a wooded land use with good hydrologic condition. The term "runoff coefficient" applies to both the NRCS methodology at Subsection A(1)(a) and the Rational and Modified Rational Methods at Subsection A(1)(b). A runoff coefficient or a groundwater recharge land cover for an existing condition may be used on all or a portion of the site if the design engineer verifies that the hydrologic condition has existed on the site or portion of the site for at least five years without interruption prior to the time of application. If more than one land cover has existed on the site during the five years immediately prior to the time of application, the land cover with the lowest runoff potential shall be used for the computations. In addition, there is the presumption that the site is in good hydrologic condition (if the land use type is pasture, lawn, or park), with good cover (if the land use type is woods), or with good hydrologic condition and conservation treatment (if the land use type is cultivation).
(3)
In computing preconstruction stormwater runoff, the
design engineer shall account for all significant land features and
structures, such as ponds, wetlands, depressions, hedgerows, or culverts,
that may reduce preconstruction stormwater runoff rates and volumes.
(4)
In computing stormwater runoff from all design storms,
the design engineer shall consider the relative stormwater runoff
rates and/or volumes of previous and impervious surfaces separately
to accurately compute the rates and volume of stormwater runoff from
the site. To calculate runoff from unconnected impervious cover, urban
impervious area modifications as described in the NRCS Technical Release
55 — Urban Hydrology for Small Watersheds and other methods
may be employed.
(5)
If the invert of the outlet structure of a stormwater
management measure is below the flood hazard design flood elevation
as defined at N.J.A.C. 7:13, the design engineer shall take into account
the effects of tailwater in the design of structural stormwater management
measures.
B.
Groundwater recharge may be calculated in accordance
with the following:
(1)
The New Jersey Geological Survey Report GSR-32 A Method
for Evaluating Ground-Water Recharge Areas in New Jersey, incorporated
herein by reference as amended and supplemented. Information regarding
the methodology is available from the New Jersey Stormwater Best Management
Practices Manual; at http://www.state.nj.us/dep/njgs/; or at New Jersey
Geological Survey, 29 Arctic Parkway, P.O. Box 427, Trenton, New Jersey
08625-0427; (609) 984-6587.
[Amended 3-9-2021 by Ord. No. 21-007[1]
A.
Technical guidance for stormwater management measures can be found
in the documents listed below, which are available to download from
the Department's website at: http://www.nj.gov/dep/stormwater/bmp_manual2.htm.
(1)
Guidelines for stormwater management measures are contained in the
New Jersey Stormwater Best Management Practices Manual, as amended
and supplemented. Information is provided on stormwater management
measures such as, but not limited to, those listed in Tables 1, 2,
and 3.
(2)
Additional maintenance guidance is available on the Department's
website at: https://www.njstormwater.org/maintenance_guidance.htm.
B.
Submissions required for review by the Department should be mailed
to: The Division of Water Quality, New Jersey Department of Environmental
Protection, Mail Code 401-02B, PO Box 420, Trenton, New Jersey 08625-0420.
[Added 3-9-2021 by Ord. No. 21-007]
A.
Site design features identified under § 433-4I above, or alternative designs in accordance with § 433-4I above, to prevent discharge of trash and debris from drainage systems shall comply with the following standard to control passage of solid and floatable materials through storm drain inlets. For purposes of this subsection, "solid and floatable materials" means sediment, debris, trash, and other floating, suspended, or settleable solids. For exemptions to this standard see § 433-7A(1)(b) below.
(1)
Design engineers shall use one of the following grates whenever they
use a grate in pavement or another ground surface to collect stormwater
from that surface into a storm drain or surface water body under that
grate:
(a)
The New Jersey Department of Transportation (NJDOT) bicycle-safe
grate, which is described in Chapter 2.4 of the NJDOT Bicycle Compatible
Roadways and Bikeways Planning and Design Guidelines; or
(b)
A different grate, if each individual clear space in that grate
has an area of no more than 7.0 square inches, or is no greater than
0.5 inch across the smallest dimension.
Examples of grates subject to this standard include grates in
grate inlets, the grate portion (non-curb-opening portion) of combination
inlets, grates on storm sewer manholes, ditch grates, trench grates,
and grates of spacer bars in slotted drains. Examples of ground surfaces
include surfaces of roads (including bridges), driveways, parking
areas, bikeways, plazas, sidewalks, lawns, fields, open channels,
and stormwater system floors used to collect stormwater from the surface
into a storm drain or surface water body.
(c)
For curb-opening inlets, including curb-opening inlets in combination
inlets, the clear space in that curb opening, or each individual clear
space if the curb opening has two or more clear spaces, shall have
an area of no more than 7.0 square inches, or be no greater than 2.0
inches across the smallest dimension.
(2)
The standard in Subsection A(1) above does not apply:
(a)
Where each individual clear space in the curb opening in existing
curb-opening inlet does not have an area of more than 9.0 square inches;
(b)
Where the municipality agrees that the standards would cause
inadequate hydraulic performance that could not practicably be overcome
by using additional or larger storm drain inlets;
(c)
Where flows from the water quality design storm as specified
in N.J.A.C. 7:8 are conveyed through any device (e.g., end of pipe
netting facility, manufactured treatment device, or a catch basin
hood) that is designed, at a minimum, to prevent delivery of all solid
and floatable materials that could not pass through one of the following:
[1]
A rectangular space 4 5/8 (4.625) inches long and 1 1/2
(1.5) inches wide (this option does not apply for outfall netting
facilities); or
[2]
A bar screen having a bar spacing of 0.5 inch.
Note that these exemptions do not authorize any infringement
of requirements in the Residential Site Improvement Standards for
bicycle safe grates in new residential development [N.J.A.C. 5:21-4.18(b)2
and 7.4(b)1].
(d)
Where flows are conveyed through a trash rack that has parallel
bars with one-inch spacing between the bars, to the elevation of the
water quality design storm as specified in N.J.A.C. 7:8; or
(e)
Where the New Jersey Department of Environmental Protection
determines, pursuant to the New Jersey Register of Historic Places
Rules at N.J.A.C. 7:4-7.2(c), that action to meet this standard is
an undertaking that constitutes an encroachment or will damage or
destroy the New Jersey Register listed historic property.
A.
This section sets forth requirements to protect public
safety through the proper design and operation of stormwater management
basins. This section applies to any new stormwater management basin.
B.
The provisions of this section are not intended to preempt more stringent municipal or county safety requirements for new or existing stormwater management BMPs. Municipal and county stormwater management plans and ordinances may, pursuant to their authority, require existing stormwater management BMPs to be retrofitted to meet one or more of the safety standards in § 433-8C(1), (2), and (3) for trash racks, overflow grates, and escape provisions at outlet structures.
[Amended 3-9-2021 by Ord. No. 21-007]
C.
Requirements for trash racks, overflow grates and
escape provisions.
[Amended 3-9-2021 by Ord. No. 21-007]
(1)
A trash rack is a device designed to catch trash and debris and prevent
the clogging of outlet structures. Trash racks shall be installed
at the intake to the outlet from the stormwater management BMP to
ensure proper functioning of the BMP outlets in accordance with the
following:
(a)
The trash rack shall have parallel bars, with no greater than
six-inch spacing between the bars;
(b)
The trash rack shall be designed so as not to adversely affect
the hydraulic performance of the outlet pipe or structure;
(c)
The average velocity of flow through a clean trash rack is not
to exceed 2.5 feet per second under the full range of stage and discharge.
Velocity is to be computed on the basis of the net area of opening
through the rack; and
(d)
The trash rack shall be constructed of rigid, durable, and corrosion-resistant
material and designed to withstand a perpendicular live loading of
300 pounds per square foot.
(2)
An overflow grate is designed to prevent obstruction of the overflow
structure. If an outlet structure has an overflow grate, such grate
shall meet the following requirements:
(a)
The overflow grate shall be secured to the outlet structure
but removable for emergencies and maintenance.
(b)
The overflow grate spacing shall be no less than two inches
across the smallest dimension.
(c)
The overflow grate shall be constructed and installed to be
rigid, durable, and corrosion-resistant, and shall be designed to
withstand a perpendicular live loading of 300 pounds per square foot.
(3)
Stormwater management BMPs shall include escape provisions as follows:
(a)
If a stormwater management BMP has an outlet structure, escape provisions shall be incorporated in or on the structure. Escape provisions include the installation of permanent ladders, steps, rungs, or other features that provide easily accessible means of egress from stormwater management BMPs. With the prior approval of the municipality pursuant to § 433-8C, a freestanding outlet structure may be exempted from this requirement;
(b)
Safety ledges shall be constructed on the slopes of all new stormwater management BMPs having a permanent pool of water deeper than 2 1/2 feet. Safety ledges shall be comprised of two steps. Each step shall be four to six feet in width. One step shall be located approximately 2 1/2 feet below the permanent water surface, and the second step shall be located one to one and one-half feet above the permanent water surface. See § 433-8E for an illustration of safety ledges in a stormwater management BMP; and
(c)
In new stormwater management BMPs, the maximum interior slope
for an earthen dam, embankment, or berm shall not be steeper than
three horizontal to one vertical.
D.
Variance or exemption from safety standards. A variance or exemption
from the safety standards for stormwater management BMPs may be granted
only upon a written finding by the municipality that the variance
or exemption will not constitute a threat to public safety.
[Amended 3-9-2021 by Ord.
No. 21-007]
E.
Safety Ledge Illustration.
[Added 3-9-2021 by Ord.
No. 21-007]
|
Elevation View - Basin Safety Ledge Configuration
 |
A.
Submission of site development stormwater plan.
(1)
Whenever an applicant seeks municipal approval of a development subject to this chapter, the applicant shall submit all of the required components of the Checklist for the Site Development Stormwater Plan at Subsection C below as part of the submission of the applicant's application for subdivision or site plan approval.
(2)
The applicant shall demonstrate that the project meets
the standards set forth in this chapter.
B.
Site development stormwater plan approval. The applicant's
site development project shall be reviewed as a part of the subdivision
or site plan review process by the municipal board or official from
which municipal approval is sought. That municipal board or official
shall consult the engineer retained by the Planning and/or Zoning
Board (as appropriate) to determine if all of the checklist requirements
have been satisfied and to determine if the project meets the standards
set forth in this chapter.
C.
Checklist requirements. The following information
shall be required:
(1)
Topographic base map. The reviewing engineer may require
upstream tributary drainage system information as necessary. It is
recommended that the topographic base map of the site be submitted
which extends a minimum of 200 feet beyond the limits of the proposed
development, at a scale of one inch equals 200 feet or greater, showing
two-foot contour intervals. The map as appropriate may indicate the
following: existing surface water drainage, shorelines, steep slopes,
soils, erodible soils, perennial or intermittent streams that drain
into or upstream of the Category One waters, wetlands and floodplains
along with their appropriate buffer strips, marshlands and other wetlands,
previous or vegetative surfaces, existing man-made structures, roads,
bearing and distances of property lines, and significant natural and
man-made features not otherwise shown.
(2)
Environmental site analysis: a written and graphic
description of the natural and man-made features of the site and its
environs. This description should include a discussion of soil conditions,
slopes, wetlands, waterways and vegetation on the site. Particular
attention should be given to unique, unusual, or environmentally sensitive
features and to those that provide particular opportunities or constraints
for development.
(3)
Project description and site plan(s): a map (or maps)
at the scale of the topographical base map indicating the location
of existing and proposed buildings, roads, parking areas, utilities,
structural facilities for stormwater management and sediment control,
and other permanent structures. The map(s) shall also clearly show
areas where alterations occur in the natural terrain and cover, including
lawns and other landscaping, and seasonal high ground water elevations.
A written description of the site plan and justification of proposed
changes in natural conditions may also be provided.
(4)
Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of §§ 433-3 through 433-6 are being met. The focus of this plan shall be to describe how the site is being developed to meet the objective of controlling groundwater recharge, stormwater quality and stormwater quantity problems at the source by land management and source controls whenever possible.
(5)
Stormwater management facilities map. The following
information, illustrated on a map of the same scale as the topographic
base map, shall be included:
(a)
Total area to be paved or built upon, proposed
surface contours, land area to be occupied by the stormwater management
facilities and the type of vegetation thereon, and details of the
proposed plan to control and dispose of stormwater.
(b)
Details of all stormwater management facility
designs, during and after construction, including discharge provisions,
discharge capacity for each outlet at different levels of detention
and emergency spillway provisions with maximum discharge capacity
of each spillway.
(6)
Calculations.
(a)
Comprehensive hydrologic and hydraulic design calculations for the predevelopment and postdevelopment conditions for the design storms specified in § 433-4 of this chapter.
(b)
When the proposed stormwater management control
measures (e.g., infiltration basins) depend on the hydrologic properties
of soils, then a soils report shall be submitted. The soils report
shall be based on on-site boring logs or soil pit profiles. The number
and location of required soil borings or soil pits shall be determined
based on what is needed to determine the suitability and distribution
of soils present at the location of the control measure.
(7)
Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of § 433-10.
(8)
Waiver from submission requirements. The municipal official or board reviewing an application under this chapter may, in consultation with the municipal engineer, waive submission of any of the requirements in Subsection C(1) through (6) of this chapter when it can be demonstrated that the information requested is impossible to obtain or it would create a hardship on the applicant to obtain and its absence will not materially affect the review process.
B.
General maintenance.
(1)
The design engineer shall prepare a maintenance plan
for the stormwater management measures incorporated into the design
of a major development.
(2)
The maintenance plan shall contain specific preventative
maintenance tasks and schedules; cost estimates, including estimated
cost of sediment, debris, or trash removal; and the name, address,
and telephone number of the person or persons responsible for preventative
and corrective maintenance (including replacement). Maintenance guidelines
for stormwater management measures are available in the New Jersey
Stormwater Best Management Practices Manual. If the maintenance plan
identifies a person other than the developer (for example, a public
agency or homeowners' association) as having the responsibility for
maintenance, the plan shall include documentation of such person's
agreement to assume this responsibility, or of the developer's obligation
to dedicate a stormwater management facility to such person under
an applicable ordinance or regulation.
(3)
Responsibility for maintenance shall not be assigned
or transferred to the owner or tenant of an individual property in
a residential development or project, unless such owner or tenant
owns or leases the entire residential development or project.
(4)
If the person responsible for maintenance identified under Subsection B(2) above is not a public agency, the maintenance plan and any future revisions based on Subsection B(7) below shall be recorded upon the deed of record for each property on which the maintenance described in the maintenance plan must be undertaken.
(5)
Preventative and corrective maintenance shall be performed
to maintain the function of the stormwater management measure, including
repairs or replacement to the structure; removal of sediment, debris,
or trash; restoration of eroded areas; snow and ice removal; fence
repair or replacement; restoration of vegetation; and repair or replacement
of nonvegetated linings.
(6)
The person responsible for maintenance identified under Subsection B(2) above shall maintain a detailed log of all preventative and corrective maintenance for the structural stormwater management measures incorporated into the design of the development, including a record of all inspections and copies of all maintenance related work orders.
(7)
The person responsible for maintenance identified under Subsection B(2) above shall evaluate the effectiveness of the maintenance plan at least once per year and adjust the plan and the deed as needed.
(8)
The person responsible for maintenance identified under Subsection B(2) above shall retain and make available, upon request by any public entity with administrative, health, environmental, or safety authority over the site, the maintenance plan and the documentation required by Subsection B(6) and (7) above.
(10)
In the event that the stormwater management
facility becomes a danger to public safety or public health, or if
it is in need of maintenance or repair, the municipality shall so
notify the responsible person in writing. Upon receipt of that notice,
the responsible person shall have 14 days to effect maintenance and
repair of the facility in a manner that is approved by the municipal
engineer or his designee. The municipality, in its discretion, may
extend the time allowed for effecting maintenance and repair for good
cause. If the responsible person fails or refuses to perform such
maintenance and repair, the municipality or County may immediately
proceed to do so and shall bill the cost thereof to the responsible
person.
C.
Nothing in this section shall preclude the municipality
in which the major development is located from requiring the posting
of a performance or maintenance guarantee in accordance with N.J.S.A.
40:55D-53.
[Added 10-3-2017 by Ord.
No. 17-072[1]]
A.
No person in control of private property (except a residential lot
with one single-family house) shall authorize the repaving, repairing
(excluding the repair of individual potholes), resurfacing (including
top coating or chip sealing with asphalt emulsion or a thin base of
hot bitumen), reconstructing or altering of any surface that is in
direct contact with an existing storm drain inlet on that property
unless the storm drain inlet either:
B.
Any person who controls, whether owned, leased, or operated, a refuse
container or dumpster must ensure that such container or dumpster
is covered at all times and shall prevent refuse from spilling out
or overflowing.
C.
Any person who owns, leases or otherwise uses a refuse container
or dumpster must ensure that such container or dumpster does not leak
or otherwise discharge liquids, semi-liquids or solids to the municipal
separate storm system(s) operated by the City of Paterson.
D.
No person in control of private property shall connect a private
drainage system to the combined sewer system for the purpose of any
(major or nonmajor) development.
[Added 3-9-2021 by Ord.
No. 21-007]
[Added 10-3-2017 by Ord.
No. 17-072]
The following containers are exempt from the requirements that are listed in § 433-11:
A.
Permitted temporary demolition containers.
B.
Litter receptacles (other than dumpsters or other bulk containers).
C.
Individual homeowner trash and recycling containers.
D.
Refuse containers at facilities authorized to discharge stormwater
under a valid NJDES permit.
E.
Large bulky items (e.g., furniture, bound carpet and padding, white
goods) placed curbside for pickup.
[Amended 10-3-2017 by Ord. No. 17-072]
Any person who erects, constructs, alters, repairs, converts,
maintains, or uses any building, structure or land in violation of
this chapter shall be subject to a fine not to exceed $2,000.
