The purpose of this article is to set forth regulations for the retrofitting of existing storm drain inlets which are in direct contact with reconstruction, repairing, repaving, resurfacing or alterations of facilities on private property and to prevent the discharge of floatables and solids such as cans, food wrappers, plastic bottles and other litter to the municipal separate storm sewer system operated by the City of Millville. These regulations are designed to protect the public health, safety and welfare and to prescribe penalties for the failure to comply with these regulations.
As used in this article, the following terms shall have the following meanings unless the context clearly indicates that a different meaning is intended.
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 Millville 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.
The ocean and its estuaries, all springs, streams and bodies of surface water or groundwater, whether natural or artificial, within the boundaries of the State of New Jersey or subject to its jurisdiction.
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 § 60-41 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.
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 the 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 seven 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-curbing-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 seven square inches or be no greater than two 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.