[Adopted 9-17-2019 by Ord. No. 19-040]
The purpose of this article is to require the retrofitting of
existing storm drain inlets which are in direct contact with repaving,
repairing, reconstruction, or resurfacing or alterations of facilities
on private property, to prevent the discharge of solids and floatables
(such as plastic bottles, cans, food wrappers and other litter) to
the municipal separate storm sewer system(s) operated by the Township
of Hamilton so as to protect public health, safety and welfare, and
to prescribe penalties for the failure to comply.
For the purpose of this article, the following terms, phrases,
words, and their derivations shall have the meanings stated herein
unless their use in the text of this article clearly demonstrates
a different meaning. When not inconsistent with the context, words
used in the present tense include the future, words used in the plural
number include the singular number, and words used in the singular
number include the plural number. The word "shall" is always mandatory
and not merely directory.
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 Township of Hamilton or other public body, and is designed
and used for collecting and conveying stormwater.
Any individual, corporation, company, partnership, firm,
association, or political subdivision of this state subject to municipal
jurisdiction.
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.
Water resulting from precipitation (including rain and snow)
that runs off the land's surface, is transmitted to the subsurface,
is captured by separate storm sewers or other sewerage or drainage
facilities, or is conveyed by snow removal equipment.
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 any surface that is in direct
contact with an existing storm drain inlet on that property unless
the storm drain inlet either:
Storm drain inlets identified in § 427-13 above shall comply with the following standard to control passage of solid and floatable materials through storm drain inlets. For purposes of this section, "solid and floatable materials" means sediment, debris, trash, and other floating, suspended, or settleable solids. For exemptions to this standard see Subsection C below.
A.
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:
(1)
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
(2)
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 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 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;
(2)
Where 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:
(3)
Where flows are conveyed through a trash rack that has parallel bars
with one-inch spacing between the bars; 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.
[Amended 4-7-2020 by Ord.
No. 20-015]
This article shall be enforced by the Public Works Department
and/or Department of Community and Economic Development. The public
is strongly advised to report any violations.
