N.J. Admin. Code § 7:20-1.2
The following words and terms, as used in this chapter, shall have the following meanings, unless the context clearly indicates otherwise.
"Applicant" means any person making application for a dam permit.
"Auxiliary spillway" means the second used spillway during flood flows which is not the emergency spillway.
"Bureau" means the Bureau of Dam Safety in the Department of Environmental Protection.
"Dam" means any artificial dike, levee or other barrier, together with appurtenant works, which is constructed for the purpose of impounding water, on a permanent or temporary basis, that raises the water level five feet or more above the usual, mean, low water height when measured from the downstream toe-of-dam to the emergency spillway crest or, in the absence of an emergency spillway, the top-of-dam.
"Department" means the New Jersey Department of Environmental Protection.
"Design freeboard" means the minimum freeboard which would exist during passage of the design flood.
"Emergency spillway" means the spillway capable of passing the spillway design storm with the principal and/or auxiliary spillway blocked.
"Environmental impact statement" means a report which describes the real and potential impacts which will or may result from the construction and operation of a proposed dam project, the adverse environmental impacts which cannot be avoided, the steps to be taken to minimize adverse impacts and the alternatives to the project with reasons for the acceptability or unacceptability.
"Formal inspection" means the inspection by a New Jersey licensed professional engineer to reevaluate the safety and integrity of the dam and appurtenant structures to determine if the structure meets current design criteria, including a field inspection and a review of the records on project design, construction and performance.
"Freeboard" means the vertical dimension between the crest of the embankment of a dam (without camber) and the reservoir water surface at the spillway design flood stage.
"Height-of-dam" means the vertical dimension from the lowest point in the stream bed or ground surface at the downstream toe of the dam to the elevation of the top of dam (without camber).
"Independent Review Board" means one or more independent professional engineers who are qualified in the design, construction and rehabilitation of dams to perform a review of the project design and construction.
"Informal inspection" means the visual inspection of the dam by the dam owner or operator to detect apparent signs of deterioration or other deficiencies of the dam structure or function.
"Levee" or "dike" means any artificial barrier together with appurtenant works that will divert or restrain the flow of a stream or river.
"One-hundred-year storm" means the storm which is estimated to have a one percent chance, or one chance in 100, of being equalled or exceeded in any one year.
"Outlet" means an opening through which water can be freely discharged from a reservoir for a particular purpose.
"Owner and/or operator" means any person who owns, controls, operates, maintains, manages or proposes to construct a dam.
"Permit" or "dam permit" means all approvals required under N.J.S.A. 58:4-1 et seq. for the construction and operation of a dam.
"Person" means any individual, proprietorship, partnership, association, corporation, municipality, county or public agency.
"Pipe conduit" means any hollow tube which conveys water through a dam from a reservoir, either as a spillway or as a drain.
"Principal spillway" means the primary or first used spillway during normal inflow and flood flows.
"Probable maximum precipitation" or "(PMP)" means the theoretically greatest depth of precipitation for a given duration that is physically possible, over a given size storm area, at a particular geographic location, at a certain time of year.
"Regular inspection" means the visual inspection of a dam by a New Jersey licensed professional engineer to detect any signs of deterioration in material, developing weaknesses or unsafe hydraulic or structural behavior.
"Reservoir" means any impoundment or any potential impoundment that will be created by a dam, dike or levee.
"Spillway" means a structure other than low flow outlets, over or through which flood flows are discharged.
"Spillway design storm" means the storm upon which the hydraulic capacity of the spillway structure is designed.
"Toe-of-dam" means the junction of the downstream face of a dam with the ground surface or the invert of the outlet pipe, whichever is the lowest point.
N.J. Admin. Code § 7:20-1.2