Materials
* Fabric (light traffic areas): heavy-duty, needle-punched, non-woven filter cloth ('bidim' A34 or equivalent).
* Fabric (heavy traffic areas): poly-propylene, polyamide, nylon, polyester, or polyethylene woven or non-woven reinforced fabric. The fabric width should be at least 700mm, with a minimum unit weight of 140gsm. Fabrics should contain ultraviolet inhibitors and stabilisers to provide a minimum of 6 months of useable construction life (ultraviolet stability exceeding 70%).

Installation
1. Refer to approved plans for location and dimensional 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. Select the appropriate fabric for the site conditions.
4. Wrap the fabric around or over the stormwater inlet grate in such a manner that prevents any water entering the stormwater inlet without passing through the fabric.
5. Ensure all other flow entry points are covered with fabric such that water cannot enter the stormwater inlet without passing through a suitable filter.
6. Take all necessary measure to minimise safety or flooding risk caused by operation of the sediment trap.

Maintenance
1. Inspect the barrier after each runoff-producing rainfall event and make repairs as needed to the sediment trap.
2. Remove collected sediment and dispose of in a suitable manner that will not cause an erosion or pollution hazard.
3. Replace the fabric if it is torn or damaged.
4. Sediment deposits should be removed immediately if they represent a safety risk.