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Stantec <br /> Table 1: BMP Inspection and Maintenance Responsibility <br /> BMP Designation Responsible Party Description of inspection and Maintenance Activity Frequency of Maintenance <br /> Vegetated Swale Waste Inspect swales at least twice annually for erosion, Monthly <br /> Management of damage to vegetation, and sediment and debris <br /> Alameda County or accumulation preferably at the end of the wet <br /> Contracted Third season to schedule summer maintenance and <br /> Party before major fall runoff to be sure the swale is ready <br /> for winter. However additional inspection after <br /> periods of heavy runoff is desirable. The Swale should <br /> be checked for debris and litter, and areas of <br /> sediment accumulation. <br /> Vegetated Swale Waste Remove obstructions and trash, trash should be Monthly <br /> Management of removed prior to mowing. <br /> Alameda County or <br /> Contracted Third <br /> Party <br /> Vegetated Swale Waste Sediment accumulating near culverts and in Monthly <br /> Management of channels should be removed when it builds up to 75 <br /> Alameda County or mm (3in.) at any spot, or covers vegetation. <br /> Contracted Third <br /> Party <br /> Vegetated Swale Waste Regular inspection for pools of water ponded flow After rain events or minimum <br /> Management of within 5 days after a rainfall event, and restoration of of monthly <br /> Alameda County or positive drainage if ponding occurs. <br /> Contracted Third <br /> Party <br />