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Storm Water Management Program
Storm Water Runoff
Help Prevent Runoff
Prince William County Watersheds
Erosion & Sediment Control
Requirements for Erosion & Sediment Control
Land & Site Development
Building in Environmentally Sensitive Areas
Floodplains and Flood Control
Participation in Clean Water Programs
Stream Restoration Projects
Drainage Maintenance and Improvement
Illicit Discharge and Illegal Dumping in Storm Drains
Sign Shop Program
Departments & Agencies
Don't Let the Wrong Things Go Down Our Storm Drains
Illicit Discharges and Illegal Dumping in the Storm Drains
What is an illicit discharge?
An illicit discharge is generally any material, liquid or oil that enters the storm drain system AND is not composed entirely of storm water. We all need to play a role in preventing the wrong fluids, materials and runoff from washing down the storm drain since it can pollute our streams and impact our drinking water.
Potential Sources of Illicit Discharges
Used motor vehicle fluids
Household Hazardous Waste (such as household cleaners, paints, and pesticides)
Discharge from unpermitted industrial operations
Grass clippings and leaf litter
What is not considered an Illicit Discharge?
Flushing water from the fire hydrants and firefighting operations
Landscape irrigation and lawn watering
Air conditioning condensation and crawl space pump water that runs off property
Dechlorinated pool water (allow pool water to sit several days before
draining your pool
Individual residential car washing
How can you help?
As part of our efforts to protect waterways, Prince William County holds a storm water permit through the Virginia Department of Environmental Quality. This permit requires us to monitor, conduct inspections and eliminate potential pollutants. Eliminating pollution contained in storm water runoff is considered the most efficient and cost effective method of reducing pollution in natural water bodies.
There may be incidents where unwanted materials enter the storm drains, so we ask the public to help us keep an eye on these important entryways to our streams.
Public Works monitors, inspects and helps prevent materials and liquids (other than rain and storm water) from entering the storm drains.
Please advise Public Works if you see anyone flushing, dumping or pushing unwanted items such as used motor oil, hazardous waste, or grass clippings into storm drains.
The public can report problems to our office at 703-792-7070 or send an email to us at firstname.lastname@example.org.
To help you identify illicit discharge, please visit our page featuring
photos and descriptions of illicit discharge
and run off concerns.
What can you do to prevent pollution from storm water runoff?
There are several things you can do to help prevent storm water pollution. These are simple actions that you can incorporate around your home or business, which can greatly improve the quality of our local water bodies.
Never dump liquid waste products into the storm drain inlets
Take waste products such as cleaning supplies, paints and household chemicals to the
household hazardous waste collection
sponsored by the County
Properly dispose of trash and recycling
Store chemicals away from storm drains
good practices and habits
lawn and landscape maintenance
vehicle washing, maintenance and storage
septic system maintenance
Learn more about illicit discharge and local efforts to reduce storm water runoff problems:
Prince William County Ordinance
(please click on Chapter 23.2 Storm Water Management in left hand column)
The County has initiated an Illicit Discharge Detection and Elimination (IDDE) Program to help prevent this issue.
Learn more about local efforts
. You can also find more information at the EPA web site:
EPA Link IDDE
Email For Assistance
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Prince William County Government