Inlet Protection
Filter socks are used as storm drain inlet protection by providing a physical barrier that reduces the rate at which sediment-laden water can enter the storm drain.  Compost used to fill filter socks has been known to provide additional filtration of chemicals and provides biological action to help break down other chemicals contained in stormwater runoff.  Inlet protection allows construction to continue while protecting storm systems from sediment overloads.  Filter socks offer unique 3 way filtration, physical (settling of solids), chemical (some binding of metals and nutrients) and biological (some destruction of harmful substances) filtration from the compost contained in the netting materials. Inlet protection using filter socks is not considered to be a primary means of sediment control and should be used within an overall integrated Erosion and Sediment control program (for example with silt fence).  The blocking of the storm drains by the use of FilterSocks should be considered in the overall site planning, especially where ponding water will create disturbances. Some ponding is desired at the inlet, which shows the sock is slowing storm water runoff and filtrating the water. If excessive ponding occurs, erosion control must be examined for failures upstream of the inlet (probably at the silt fence). When sediment reaches 1/2 the height of the sock, removal of the sediment may be required. Texas Power Mulch is located in Houston, TX and will bid for sediment and erosion control work in most parts of Texas, including the coastal area. Contact us for a brochure or CD, or click on links for more information.
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