Stormwater System Maintenance
Stormwater system maintenance activities are required on all drainage structures related to the system, including inlets, headwalls, velocity dissipaters, spillways, pipes, feeder channels, discharge channels, vegetation, etc.
Debris and Litter Removal
Debris and litter removal shall be performed at least monthly and after storm events totaling approximately two inches over a 24-hour period or as needed in order to prevent the structure from clogging and failing and to prevent a public nuisance.
Erosion and Structural Repair
Side slopes, emergency spillways, and embankments shall be regraded, revegetated, compacted and/or installed or replenished with rip-rap to correct slumping or erosion problems that develop.
Mowing
Side slopes, embankments, emergency spillways, and other grassed areas of stormwater facilities shall be periodically mowed to prohibit woody growth. Native grasses, which are water-tolerant, pest-tolerant, and slow growing, are recommended.
No Blockages
Removal of any blockage from pipes, channels, spillways, inlets, and outlets shall be performed as needed to keep the system in proper working condition.
Outlet Control
Maintain outlet control devised to ensure proper functioning in the control of stormwater velocities at the outlet of the stormwater system. Revegetating and/or replenishing or reinstalling rip-rap may be required to correct erosion problems at the outlet of stormwater system pipes.
Removal of Log Jams and Debris
All streams and ditches within the private stormwater system shall be inspected periodically for blockages. If identified, the blockages and debris shall be removed as quickly as practicable.
Sediment Removal
Removal of sediment shall be performed as needed to ensure proper working order of the system and its related stormwater system features (channels, pipes, etc.).
Illicit Discharges
Inspect to identify any illicit discharges within the system including illegal dumping. All discharges must be reported and eliminated if possible.
Structural Repairs and Replacement
Structural damage to outlet structures (i.e. cracks, leaks, or failure) shall be repaired as soon as possible.
Nuisance Control
Standing water or soggy conditions within a "dry" system can create nuisance conditions such as odors, mosquitoes, litter, and weeds. Regular maintenance to remove debris and ensure control structure functionality is required.
Plantings
Maintain plants as required by the site plan and/or permits.