Chemical spills that contain toxic substances, smoke stacks that spew emissions and uncovered or unprotected outdoor storage or waste areas can contribute pollutants to stormwater runoff.

Here are a few tips for preventing harmful contributors to stormwater pollution from an industrial site:

Wash vehicles or equipment in wash bays hooked up to the sanitary sewer. Don’t wash off detergents, oils, and greases into streets or storm drains.
Divert rainfall runoff from fueling islands by building a canopy or cover over them.
Any barrels containing potentially hazardous liquids should be stored in a sealed container, inside a building or under cover, and propped up on pallets with secondary containment in case of a spill. Call the Fire Department for fire code specifics.
Waste and processed water of any type must be discharged to the sanitary sewer.
Discharge of wastewater to the ground or storm drains is prohibited.
Do not hose off pavement wash pollutants into storm drains that lead straight to the river.
Educate employees on spill cleanup procedures and have cleanup materials nearby with a spill prevention plan.