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STORMWATER SITE PLAN <br />FEBRUARY 26, 2018 <br />MUKILTEO SCHOOL DISTRICT- TRANSPORTATION <br />PAGE 4 <br />Vehicles, construction equipment, and/or petroleum product storage/dispensing: <br />• All vehicles, equipment, and petroleum product storage/dispensing areas will be <br />inspected regularly to detect any leaks or spills, and to identify maintenance needs to <br />prevent leaks or spills. <br />• On -site fueling tanks and petroleum product storage containers shall include <br />secondary containment. <br />• Spill prevention measures, such as drip pans, will be used when conducting <br />maintenance and repair of vehicles or equipment. <br />• In order to perform emergency repairs on site, temporary plastic will be placed <br />beneath and, if raining, over the vehicle. <br />• Contaminated surfaces shall be cleaned immediately following any discharge or <br />spill incident. <br />Chemical storage: <br />• Any chemicals stored in the construction areas will conform to the appropriate <br />source control BMPs listed in Volume IV of the Ecology Stormwater Manual. In Western <br />WA, all chemicals shall have cover, containment, and protection provided on site, per <br />BMP C153 for material delivery, storage and containment in the Surface Water <br />Management Manual for Western Washington, 2012/14. <br />• Application of agricultural chemicals, including fertilizers and pesticides, shall be <br />conducted in a manner and at application rates that will not result in loss of chemical to <br />stormwater runoff. Manufacturers' recommendations for application procedures and <br />rates shall be followed. <br />Demolition: <br />• Dust released from demolished sidewalks shall be controlled using dust control <br />measures (BMP C140). <br />%bris <br />Storm drain inlets vulnerable to stormwater discharge carrying dust, soil, or <br />will be protected using storm drain inlet protection (BMP C220 as indicated on <br />the plan). <br />• Process water and slurry resulting from sawcutting and surfacing operations will <br />be prevented from entering the waters of the state by implementing sawcutting and <br />surfacing pollution prevention measures (BMP C152). <br />1. Slurry and cutting shall be vacuumed during cutting and surfacing <br />operations. <br />2. Slurry and cuttings shall not drain to any natural or constructed drainage <br />conveyance. <br />3. Collected slurry and cuttings shall be disposed of in a manner that does <br />not violate groundwater or surface water quality standards. <br />P:\Work\Projects\2012\l2-'185 Mnkilteo SMMDOMTransportation Facility Drainage 12-185.doc <br />