7.0 Responsibility
7.1 Maintenance
All privately owned stormwater systems shall be designed, constructed, managed and maintained by the owner or at the owner’s expense and in accordance with their design or the manufacturer’s instructions.
In particular all stormwater soakage systems including detention chambers shall be maintained so as to operate at their design capacity at all times.
Every owner and/or occupier must ensure that stormwater is not allowed to inflow to, or otherwise access, the wastewater system. There should be a minimum of 150 mm freeboard from the entry point of a gully trap to the highest stormwater level adjacent.
There should be a minimum freeboard of 150 mm from floor level of any dwelling to the ground level adjacent or to the maximum flood level if higher and care must be taken when landscaping properties to maintain this minimum freeboard.
It should be noted that, there also is a requirement that the top of the gully trap shall be a minimum of 150 mm below the overflow level of the lowest sanitary fixture served by the drainage system. This includes “wet floor” showers so in these cases the adjacent ground level must be 300 mm below the floor level of the wet floor shower.
Every owner and/or occupier must ensure that when undertaking any works, either personally or through an agent, that sediment is controlled so that it does not enter stormwater drains. If any person fails to prevent sediments from entering stormwater drains, they must remove the sediments from the stormwater drains and undertake remedial work as instructed by, and to the satisfaction of, Council Officers.
