This ends up discharging into waterways as sediment, sludge and solids. These can be caught in pollution traps , but the most effective way to reduce this problem is to prevent pollution entering the stormwater system in the first place. The traps don't catch all the silt or litter, and they don't stop chemicals. Everyone has a part to play. Reducing the pollution depends on every person preventing harmful natural or chemical substances entering the drains.
Council is responsible for controlling and maintaining stormwater systems.
However, it is everyone's responsibility to reduce the amount of rubbish and pollution that is carried into the drains. Wash your car on the grass or at the carwash. Keep detergents out of the gutter. Clean brushes over soil. Don't allow paint, solvents and cleaners into the drain.