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Stormwater Pollution Prevention Plan <br /> 3.1.11 Element#11 —Maintain BMPs <br /> All temporary and permanent erosion and sediment control BMPs shall be maintained and <br /> repaired as needed to assure continued performance of their intended function. Maintenance and <br /> repair shall be conducted in accordance with each particular BMP's specifications. Visual <br /> monitoring of the BMPs will be conducted at least once every calendar week and within 24 hours <br /> of any rainfall event that causes a discharge from the site. If the site becomes inactive, and is <br /> temporarily stabilized, the inspection frequency will be reduced to once every month. <br /> All temporary erosion and sediment control BMPs shall be removed within 30 days after the <br /> final site stabilization is achieved or after the temporary BMPs are no longer needed. Trapped <br /> sediment shall be removed or stabilized on site. Disturbed soil resulting from removal of BMPs <br /> or vegetation shall be permanently stabilized. <br /> 3.1.12 Element#12—Manage the Project <br /> Erosion and sediment control BMPs for this project have been designed based on the following <br /> principles: <br /> ■ Design the project to fit the existing topography, soils, and drainage patterns. <br /> ■ Emphasize erosion control rather than sediment control. <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 /> 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 /> Inspection and Monitoring <br /> ■ All BMPs shall be inspected, maintained, and repaired as needed to assure <br /> continued performance of their intended function. Site inspections shall be <br /> conducted by a person who is knowledgeable in the principles and practices <br /> of erosion and sediment control at least once every calendar week and within <br /> 24 hours of any major rainfall event. This person has the necessary skills to: <br /> SNBL USA, LTD—Seaway Commercial Center <br /> SWPPP 8 August, 2022 <br />