Illicit Discharge Detection and Elimination (IDDE)

What Types of Discharges to the Storm Drain System are Prohibited?

Prohibited Discharges:	Allowed Discharges:
Industrial process water	Water utility line flushing
Commercial car wash wastewater	Runoff from firefighting
Sanitary sewer flows	Landscape irrigation
Wash-down of loading areas	Ground water recharge
Wastewater treatment plant effluent	Discharges from potable water sources
Dumping of liquid waste	Dechlorinated pool water
Chlorinated pool water	Street wash water from cleaning/maintenance
Water softener brine backwash	Residential car washing
Used oil	Air conditioning condensation

Unusual color or cloudiness

Strong pungent or musty odor

Floating debris

Surface scum or foam

Oil sheen

Algae

Dead vegetation or inhibited growth

Dead animals

Stains on channel bottom or sides

Pipe corrosion