All stormwater management system installations shall be inspected during the time of construction as outlined in Chapter
324, Site Plan Review, Article
III, §
324-17. All stormwater management systems and storm networks shall be inspected on an annual basis for compliance with this chapter and the NJDEP regulations.
As used in this chapter, the following terms
shall have the meanings indicated:
STORMWATER MANAGEMENT SYSTEM
Any type of detention, retention or infiltration facility
designed to manage the rate and volume of stormwater runoff.
DETENTION FACILITY
A stormwater management system which temporarily impounds
runoff and discharges it through an hydraulic outlet structure to
a downstream conveyance system. While a certain amount of outflow
may also occur via infiltration through the surrounding soil, such
amounts are negligible when compared to the outlet structure discharge
rates and are, therefore, not considered in the facility's design.
Since a detention facility impounds runoff only temporarily, it is
normally dry during nonrainfall periods. (Taken from New Jersey Department
of Environmental Protection Stormwater Management Facilities Maintenance
Manual, June 1989.)
INFILTRATION FACILITY
A stormwater management system which temporarily impounds
runoff and discharges it via infiltration through the surrounding
soil. While an infiltration facility may also be equipped with an
outlet structure to discharge impounded runoff, such discharge is
normally reserved for overflow and other emergency conditions. Since
an infiltration facility impounds runoff only temporarily, it is normally
dry during nonrainfall periods. (Taken from New Jersey Department
of Environmental Protection Stormwater Management Facilities Maintenance
Manual, June 1989.)
RETENTION FACILITY
A stormwater management system which, similar to a detention
facility, temporarily impounds runoff and discharges its outflow through
an hydraulic structure to a downstream conveyance system. Unlike a
detention facility, however, a retention facility also includes a
permanent impoundment and, therefore, is normally wet, even during
nonrainfall periods. Storm runoff inflows are temporarily stored above
this permanent impoundment. (Taken from New Jersey Department of Environmental
Protection Stormwater Management Facilities Maintenance Manual, June
1989.)