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Stormwater Pollution Prevention Plan <br /> • Minimize the extent and duration of the area exposed. <br /> • Keep runoff velocities low. <br /> • Retain sediment on site. <br /> • Thoroughly monitor site and maintain all ESC measures. <br /> • Schedule major earthwork during the dry season. <br /> As this project site is located west of the Cascade Mountain Crest, the project will be <br /> managed according to the following key project components: <br /> Phasing of Construction <br /> • The construction project is being phased to the extent practicable in <br /> order to prevent soil erosion, and, to the maximum extent possible, <br /> the transport of sediment from the site during construction. <br /> • Revegetation of exposed areas and maintenance of that vegetation <br /> shall be an integral part of the clearing activities during each phase <br /> of construction, per the Scheduling BMP (C 162). <br /> Seasonal Work Limitations <br /> • From October 1 through April 30, clearing, grading, and other soil <br /> disturbing activities shall only be permitted if shown to the <br /> satisfaction of the local permitting authority that silt-laden runoff will <br /> be prevented from leaving the site through a combination of the <br /> following: <br /> ❑ Site conditions including existing vegetative coverage, slope, <br /> soil type, and proximity to receiving waters; and <br /> ❑ Limitations on activities and the extent of disturbed areas; <br /> and <br /> ❑ Proposed erosion and sediment control measures. <br /> • Based on the information provided and/or local weather conditions, <br /> the local permitting authority may expand or restrict the seasonal <br /> limitation on site disturbance. <br /> • The following activities are exempt from the seasonal clearing and <br /> grading limitations: <br /> 13 <br />