OSD tanks are simply onsite stormwater detention tanks used for detaining the stormwater from your site to ensure all development areas can be safely drained. Itâ€™s a storage tank with a slow-release system to council kerb or street systems. The reason for their use is to improve drainage and environmental issues and to and avoid flooding.
Many Councilâ€™s in NSW are requiring new property owners to provide a system that will capture rainwater that falls on their property and release it at a slower rate than it would normally do.
You must regularly maintain your OSD System to prevent potential problems. This helps ensure that during a storm event, the tank will function as designed. If your OSD system discharges directly into a Sydney Water owned drainage systems or your local Council requires annual reporting, you must enter into a formal service agreement which sets out your ongoing OSD maintenance responsibilities.
If your property has either above or below ground stormwater tanks, contact Stormwater Sydney to organise a maintenance schedule to ensure your assets work as designed and you meet reporting and maintenance requirements. Check out one of our past OSD projects in this Article.