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2.1.7 Element 7: Protect Drain Inlets <br /> All storm drain inlets and culverts made operable during construction shall be protected to <br /> prevent unfiltered or untreated water from entering the drainage conveyance system. However, <br /> the first priority is to keep all access roads clean of sediment and keep street wash water separate <br /> from entering storm drains until treatment can be provided. Storm Drain Inlet Protection(BMP <br /> C220)will be implemented for all drainage inlets and culverts that could potentially be impacted <br /> by sediment-laden runoff on and near the project site. <br /> List and describe BMPs: <br /> • Storm Drain Inlet Protection(BMP C220) <br /> Installation Schedules: Install catch basin filters, according to the approved construction plans, as <br /> catch basins become operable. <br /> Inspection and Maintenance plan: Maintain until all construction activities are completed. <br /> Inspect catch basin filters frequently, especially after storm events. Clean and replace clogged <br /> inserts. For systems with clogged stone filters: pull away the stones from the inlet and clean or <br /> replace. An alternative approach would be to use the clogged stone as fill and put fresh stone <br /> around the inlet. Do not wash sediment into storm drains while cleaning. <br /> Responsible Staff: Contractor <br /> Page I15 <br />