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Stormwater Pollution Prevention Plan <br /> • Retain sediment on site. <br /> • Thoroughly monitor site and maintain all ESC measures. <br /> • Schedule major earthwork during the dry season. <br /> In addition,project management will incorporate the key components listed below: <br /> As this project site is located west of the Cascade Mountain Crest,the project will be managed <br /> according to the following key project components: <br /> Phasing of Construction <br /> • The construction project is being phased to the extent practicable in order to <br /> prevent soil erosion, and,to the maximum extent possible,the transport of <br /> sediment from the site during construction. <br /> Seasonal Work Limitations <br /> • From October 1 through April 30, clearing, grading, and other soil disturbing <br /> activities shall only be permitted if shown to the satisfaction of the local <br /> permitting authority that silt-laden runoff will be prevented from leaving the <br /> site through a combination of the following: <br /> Site conditions including existing vegetative coverage, slope, soil <br /> type, and proximity to receiving waters; and <br /> Limitations on activities and the extent of disturbed areas; and <br /> Proposed erosion and sediment control measures. <br /> • Based on the information provided and/or local weather conditions,the local <br /> permitting authority may expand or restrict the seasonal limitation on site <br /> disturbance. <br /> • The following activities are exempt from the seasonal clearing and grading <br /> limitations: <br /> Routine maintenance and necessary repair of erosion and sediment <br /> control BMPs; <br /> Routine maintenance of public facilities or existing utility structures <br /> that do not expose the soil or result in the removal of the vegetative <br /> cover to soil; and <br /> SWPPP Page 7 <br /> Delta Tidelands—Site Grading June 2016 <br />