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, � � <br /> PROJECT SWPPP JUNE 16, 2017 <br /> HORIZON ELEMENTARY- ENTRANCE REVISION <br /> New slopes within the project will be limited to a maximum of 3 horizontal to 1 <br /> vertical. There are no natural steep sloped areas in the work area. <br /> Element #7: Protect Drain Inlets <br /> Nearby inlets will be protected. <br /> BMP C220, Inlet Protection <br /> Element#8: Stabilize Channels and Outlets <br /> There are no outlets <br /> Element #9: Control of Pollutants <br /> All pollutants, including waste materials and demolition debris, that occur onsite <br /> shall be handled and disposed of in a manner that does not cause contamination <br /> of stormwater. Good housekeeping and preventative measures will be taken to <br /> ensure that the site will be kept clean, well organized, and free of debris. If <br /> required, BMPs to be implemented to control specific sources of pollutants are <br /> discussed below. <br /> Vehicles, construction equipment, and/or petroleum product <br /> storage/dispensing: <br /> • No fueling or vehicle maintenance on-site. <br /> • In order to perform emergency repairs on site, temporary plastic will be <br /> placed beneath and, if �aining, over the vehicle. <br /> • Contaminated surfaces shall be cleaned immediately following any <br /> discharge or spill incident. <br /> Chemical storage: <br /> There will be no significant chemical storage associated with this site. <br /> Demolition: <br /> • Dust released from demolished concrete and asphalt will be <br /> controlled using dust control measures (BMP C140). <br /> • Sawcutting slurry will be controlled (BMP C152) <br /> Concrete and grout: <br /> • Process water and slurry resulting from concrete work will be prevented <br /> from entering the waters of the state by implementing concrete handling <br /> measures (BMP C151). <br /> 1. Concrete truck chutes, pumps, and internals shall be washed out <br /> only into formed areas awaiting installation of concrete or asphalt. <br /> 2. Unused concrete remaining in the truck and pump shall be returned <br /> to the originating batch plant for recycling. <br /> 3. Hand tools including, but not limited to, screeds, shovels, rakes, <br /> floats, and trowels shall be washed off only into formed areas awaiting <br /> installation of concrete or asphalt. <br /> � ,,.,,.�� - � �,,, . , .�,,,,�, �,,..,�.� ,��:� �.,�,�.� ,,, - <br /> _. —� <br /> ���� <br />