The storm sewer system is designed to transport storm water to the nearest river, stream, lack, or wetland. Any waste or pollution that enters the storm sewer system will flow directly to the nearest waterbody without treatment and may cause serious environmental damage. Any discharge into a storm sewer system, river, stream, or waterbody that is not composed entirely of storm water is called an illicit discharge.
Common Illicit Discharges
Commercial car wash wastewater
Restaurant cooking oil
Gas, oil, paints, cleaners
Fertilizer, grass, leaves, pesticides, pet waste, trash
Concrete washout and sediment from construction sites
Installation of pipes that bypass sanitary connections or septic drain fields that produce a direct discharge to a waterbody
These illicit discharges may be the result of:
Dumping them into the storm sewer system.
Allowing fertilizers, grasses, leaves, pesticides, and/or pet waste to wash into storm drains.
Improperly working and/or designed wastewater treatment systems that produce discharges to the waterbody.
Be Proactive & Report Suspected Illicit Discharges Promptly