Illicit Discharge

What is illicit discharge?
According to the EPA, an illicit discharge is any discharge into a storm drain system that is not composed entirely of stormwater. The City of Danville's Urban Stormwater Quality Management and Discharge Control Ordinance (Chapter 9, Article V, Division 7) prohibits non-stormwater discharges to the storm drain system.

If you suspect an illicit discharge, contact Public Works by phone at 434-799-5245 or email.

Print an Illicit Discharge Flyer
Prohibited Discharge Examples
  • Animal waste
  • Solid waste
  • Industrial process water
  • Commercial car wash wastewater
  • Sanitary sewer flows
  • Automotive and petroleum products
  • Commercial and household cleaning materials
  • Herbicides, pesticides, and fertilizers
Permitted Discharge Examples
  • Water utility line flushing
  • Runoff from firefighting
  • Landscape irrigation
  • Discharges from potable water sources
  • Dechlorinated pool water
  • Street wash water from cleaning/maintenance
  • Residential car washing
Possible Signs of Illicit Discharge
  • Unusual color or cloudiness
  • Strong pungent or musty odors
  • Floating debris
  • Surface scum or foam
  • Oil sheen
  • Algae
  • Dead vegetation or inhibited growth
  • Dead animals
Illicit Discharge Videos (courtesy of Excal Visual, LLP - Training for EH&S Compliance)