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• <br />Chapter 4-Site-Specific Industrial Storm Water BMPs <br />• <br />V <br />0 <br />can be used where flows are higher and subject to disturbance by site traffic. Sod inlet filters are <br />generally used where sediments in the storm water runoff are low. <br />What to Consider <br />Storm drain inlet protection is not meant for use in drainage areas exceeding 1 acre or for large <br />concentrated storm water flows. Installation of this measure should take place before any soil <br />disturbance in the drainage area. The type of material used will depend on site conditions and the <br />size of the drainage area. Inlet protection should be used in combination with other measures, <br />such as small impoundments or sediment traps, to provide more effective sediment removal. Inlet <br />protection structures should be inspected regularly, especially after a rainstorm. Repairs and silt <br />removal should be performed as necessary. Storm drain inlet protection structures should be <br />removed only after the disturbed areas are completely stabilized. <br />Advantages of.Storm Drain Inlet Protection <br />• Prevents clogging of existing storm drainage systems and the siltation of receiving waters <br />• Reduces the amount of sediment leaving the site <br />Disadvantages of Storm Drain Inlet Protection <br />• May be difficult to remove collected sediment <br />• May cause erosion elsewhere if clogging occurs <br />• Is practical only for low sediment, low volume flows <br />4-85