7500 HARDESON RD 7 ELEVEN 2024-02-29

• Clearly defined plan of action designed to prevent offsite migration of sediments, which will be implemented in the event that a major storm is predicted or offsite erosion is observed by the Contractor, his/her employees, or the City. • Description of materials to be used for cover and means by which it will be placed. List equipment to be used or number of personnel anticipated to be used to spread material. • Vendor or supplier of materials to be used; list two alternates and include phone numbers. • Means and timeframe for cleanup of any materials that escape offsite and for repairs to the natural system if damages have occurred. In order for the erosion and sediment control (ESC) facilities to function properly, they must be maintained and have sediment removed on a regular basis. Inspection and sediment removal shall be performed on all ESC facilities, as described in the inspection schedule located in Section 7.11 of this report. 7.6 Protect Slopes All disturbed areas that have reached final grade or are not being actively worked shall be seeded (BMP C120), mulched (BMP C121), surface roughened (BMP C130), or protected with plastic covering (BMP C123). 7.7 Protect Drain Inlets All catch basins within adjacent roadways to the site shall be protected with inlet protection (BMP C220). 7.8 Stabilize Channels and Outlets No channels or outlets are proposed. 7.9 Control Pollutants The Contractor shall be responsible for controlling pollutants at the work site. Key elements, such as centralized areas for equipment and concrete truck washing, and temporary storage of debris and other stockpiled materials, are the responsibility of the Contractor. All pollutants, including waste materials and demolition debris, that occur onsite shall be handled and disposed of in a manner that does not cause contamination of stormwater. Woody debris may be chopped and spread onsite. Cover, containment, and protection from vandalism shall be provided for all chemicals, liquid products, petroleum products, and non -inert wastes present on the site (see Chapter 173-304 WAC for the definition of inert waste). Onsite fueling tanks shall include secondary containment. Maintenance and repair of heavy equipment and vehicles involving oil changes, hydraulic system drain down, solvent and de -greasing cleaning operations, fuel tank drain down and removal, and other activities which may result in discharge or spillage of pollutants to the ground or into stormwater runoff must be conducted using spill prevention measures, such as drip pans. Contaminated surfaces shall be cleaned immediately following any discharge or spill incident. Emergency repairs may be performed onsite using temporary plastic placed beneath and, if raining, over the vehicle. Wheel wash or tire bath wastewater shall be discharged to a separate onsite treatment system or to the sanitary sewer. Construction StPollution Prevention Plan 101000 Everett 7-Eleven Parking Expansion 5 2180309.11