Installation 1. Refer to approved plans for location and installation details. If there are questions or problems with the location, dimensions, or method of installation, contact the engineer or responsible on-site officer for assistance. 2. Ensure that the installation of the sediment trap will not cause undesirable safety or flooding issues. 3. Install sediment trap in accordance with manufacturer's instructions. 4. Ensure that no sediment-laden inflow is allowed to bypass the gully bag until the bag is either full of sediment, or the inflow exceeds the hydraulic capacity of the bag. 5. Install appropriate sediment and/or flow controls on the side-entry slot (if any). 6. Take all necessary measure to minimise the safety risk caused by the structure. Maintenance 1. Inspect all sediment traps daily and immediately after runoff-producing rainfall. Make repairs as needed. 2. Remove and replace the gully bag when it is either full of sediment, or is likely to be full of sediment before the next inspection, or the hydraulic capacity of the filter bag is excessively reduced. 3. Dispose of the sediment and filter bag in a suitable manner that will not cause an erosion or pollution hazard. 4. Ensure sediment does not enter the stormwater drain during de-silting operations and maintenance of the trap. 5. Sediment on the road must be removed immediately if it represents a safety hazard. Removal 1. When the up-slope drainage area has been stabilised, remove all materials included deposited sediment and dispose of in a suitable manner that will not cause an erosion or pollution hazard.