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CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> 3.2.20 BMP C153: Material Delivery, Storage and Containment <br /> Purpose <br /> Prevent,reduce, or eliminate the discharge of pollutants froln material delivery and storage to the <br /> stormwater system or watercourses by minimizing the storage of hazardous materials onsite, storing <br /> materials in a designated area, and installing secondary containment. <br /> Conditions of Use <br /> These procedures are suitable for use at all construction sites with delivery and storage of the following <br /> materials: <br /> • Petroleum products such as fuel, oil and grease <br /> • Soil stabilizers and binders (e.g., Polyacrylamide) <br /> . • Fertilizers,pesticides and herbicides <br /> ' • Detergents <br /> • Asphalt and concrete compounds <br /> • Hazardous chemicals such as acids, lime, adhesives, paints, solvents and curing compounds <br /> • Any other material that may be detrimental if released to the environment. <br /> Design and/nstallation Specifications <br /> The following steps shall be taken to minimize risk: <br /> 1. Temporary storage area shall be located away from vehicular traffic, near the construction <br /> entrance(s), and away from waterways or storm drains. <br /> 2. Material safety data sheets shall be supplied for all materials stared. Chemicals shall be kept in <br /> their original labeled containers. <br /> 3. Hazardous material storage on site shall be minimized. <br /> 4. Hazardous materials should be handled as infrequently as possible. <br /> 5. During the wet weather season (October 1 to April 30), starage of�naterials in a covered area <br /> shall be considered. <br /> . 6. Materials should be stored in secondary containments, such as earthen dike, horse trough, or even <br /> - a children's wading pool for non-reactive materials such as detergents, oil, grease, and paints. <br /> Small amounts of material may be secondarily contained in "bus boy"trays or concrete mixing <br /> � trays. <br /> 7. Chemicals, drums, or bagged materials shall not be stored directly on the ground. Place these <br /> items on a pallet and,when possible, in secondary containment. <br /> 8. If drums must be kept uncovered, store them at a slight angle to reduce ponding of rainwater on <br /> the lids to reduce corrosion. Domed plastic covers are inexpensive and snap to the top of drums, <br /> preventing water from collecting. <br /> Material Storage Areas and Secondary Containment Practices: <br /> 1. Liquids, petroleum products, and substances listed in 40 CFR Parts I 10, 1 17, or 302 shall be <br /> stored in approved containers and drums and shall not be overfilled. Containers and drums shall <br /> be stored in temporary secondary containment facilities. <br /> Volume 11— Construction Stormwater Pollution Prevention <br /> 3-32 <br />