Att 3_CMP - Final

     5.3     Fences
             A silt fence, or filter fence, is a temporary sediment control device used on construction
             site to protect water quality in nearby streams, rivers, lakes and bays from sediment
             (loose soil) in stormwater runoff.

             A typical fence consists of a piece of synthetic filter fabric (also called a geotextile)
             stretched between a series of wooden or metal fence stakes along a horizontal contour
             level. The stakes are installed on the downhill side of the fence, and the bottom edge of
             the fabric is trenched into the soil and backfilled on the uphill side. The stormwater
             slowly passes through the fence while depositing its sediments on the uphill side of the
             fence. Figure 9 shows a typical arrangement.




                                         Figure 9: Sediment Fence




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