7500 HARDESON RD 7 ELEVEN 2024-02-29

• Torn sheets must be replaced and open seams repaired. • If the plastic begins to deteriorate due to ultraviolet radiation, it must be completely removed and replaced. • When the plastic is no longer needed, it shall be completely removed. • If tires are used to weight down the plastic sheeting, they must be disposed of properly. Filter Fabric Fence (BMP C233) • Any damage shall be repaired immediately. • If concentrated flows are evident uphill of the fence, they must be intercepted and conveyed to a sediment pond. • Check the uphill side of the fence for signs of the fence clogging and acting as a barrier to flow, and causing channelization of flows parallel to the fence. If this occurs, replace the fence or remove the trapped sediment. • Sediment deposits shall be removed when the deposit reaches approximately one-third the height of the silt fence, or a second silt fence shall be installed. • If the filter fabric (geotextile) has deteriorated due to ultraviolet breakdown, it shall be replaced. If the ESC facilities are damaged, or if the Engineer of Record or City determines that existing controls are inadequate, the Contractor shall install additional measures as required. The maintenance inspection report will be made after each inspection. Copies of the report forms to be completed by the Construction SWPPP Coordinator are included as Appendix C of this report. Completed forms will be provided to the City Inspector and will also be maintained onsite during the entire construction project. If construction activities or design modifications are made to the site plan that could impact stormwater or if the Engineer of Record determines that the measures are not adequate to prevent erosion and the discharge of sediment from the site (based on turbidity measurements), this Construction SWPPP will be amended appropriately. The amended Construction SWPPP will have a description of the new activities that contribute to the increased pollutant loading and the planned source control activities. All temporary Construction SWPPP BMPs shall be removed within 30 days after achieving final site stabilization. 7.12 Manage the Project Materials on Hand (BMP C150) will be implemented. The following practices will be required during construction to properly manage activities: • Comply with seasonal work limitations. • Inspect, maintain, and repair BMPs. • Identify a CESCL (BMP C160) • Maintain the Construction SWPPP onsite at all times, including narrative and plans. • Keep materials on hand (BMP C150) Construction StPollution Prevention Plan 101000 Everett 7-Eleven Parking Expansion 9 2180309.11