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. 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 Installation Specifications <br />. The temporary storage area should be located away from vehicular traffic, near the con- <br />struction entrance(s), and away from waterways or storm drains. <br />. Safety Data Sheets (SDS) should be supplied for all materials stored. Chemicals should be <br />kept in their original labeled containers. <br />. Hazardous material storage on -site should be minimized. <br />. Hazardous materials should be handled as infrequently as possible. <br />During the wet weather season (Oct 1— April 30), consider storing materials in a covered <br />area. <br />. Materials should be stored in secondary containments, such as an earthen dike, horse trough, <br />or even a children's wading pool for non -reactive materials such as detergents, oil, grease, <br />and paints. Small amounts of material may be secondarily contained in "bus boy" trays or con- <br />crete mixing trays. <br />. Do not store chemicals, drums, or bagged materials directly on the ground. Place these items <br />on a pallet and, when possible, within secondary containment. <br />. If drums must be kept uncovered, store them at a slight angle to reduce ponding of rainwater <br />on the lids to reduce corrosion. Domed plastic covers are inexpensive and snap to the top of <br />drums, preventing water from collecting. <br />. Liquids, petroleum products, and substances listed in 40 CFR Parts 110,117, or 302 shall be <br />stored in approved containers and drums and shall not be overfilled. Containers and drums <br />shall be stored in temporary secondary containment facilities. <br />. Temporary secondary containment facilities shall provide for a spill containment volume able <br />to contain 10% of the total enclosed container volume of all containers, or 110% of the capa- <br />city of the largest container within its boundary, whichever is greater. <br />. Secondary containment facilities shall be impervious to the materials stored therein for a min- <br />imum contact time of 72 hours. <br />. Sufficient separation should be provided between stored containers to allow for spill cleanup <br />and emergency response access. <br />. During the wet weather season (Oct 1— April 30), each secondary containment facility shall <br />be covered during non -working days, prior to and during rain events. <br />. Keep material storage areas dean, organized and equipped with an ample supply of appro- <br />priate spill dean -up material (spill kit). <br />. The spill kit should include, at a minimum: <br />2019 Stormwater Management Manual for Western Washington <br />Volume 11 - Chapter 3 - Page 319 <br />