Stormwater is untreated rainwater and surface runoff that collects contaminants along its path and discharge them into our rivers, streams and estuaries.
Contaminants within stormwater can include sediment, oil and grease, organic material, faecal material and hazardous chemicals. Contaminants include soap suds and detergents and even biodegradable and environmentally friendly products. The detergents take up oxygen in the water and plants and fish cant breath.
The risk of such contaminants being present is higher when the discharge is from industrial or trade premises or from a reticulated system that collects stormwater from a larger area and a number of properties.
What we're doing
Check out Environment Southland's Pollution Prevention Guide that contains specific information for industrial and commercial businesses. For more information, contact the pollution prevention team at Environment Southland.
What you can do
Take care when washing your car
Learn how to wash your car without discharging contaminants into the stormwater drains.
Download our factsheet on car washing.
Raise awareness by painting fish on drains
Get to know your local waterways
Know the rules