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volume able to contain 10% of the total enclosed container volume of all con- <br /> tainers, or 110% of the capacity of the largest container within its boundary, <br /> whichever is greater. I <br /> • Secondary, containment facilities shall be impervious to the materials stored <br /> therein for a minimum contact time of 72 hours. <br /> . Secondary containment facilities shall be maintained free of accumulated rain- <br /> water and spills. In the event of spills or leaks, accumulated rainwater and spills <br /> shall be collected and placed into drums. These liquids shall be handled as haz- <br /> ardous waste unless testing determines them to be non-hazardous. <br /> • Sufficient separation should be provided between stored containers to allow for I <br /> spill cleanup and emergency response access. <br /> . During the wet weather season (Oct 1 —April 30), each secondary containment <br /> 111 <br /> facility shall be covered during non-working days, prior to and during rain events. <br /> . Keep material storage areas clean, organized and equipped with an ample supply <br /> of appropriate spill clean-up material (spill kit). <br /> . The spill kit should include, at a minimum: <br /> O 1-Water Resistant Nylon Bag <br /> O 3-Oil Absorbent Socks 3"x 4' <br /> 0 2-Oil Absorbent Socks 3"x 10' <br /> • 12-Oil Absorbent Pads 17"x19" <br /> 0 1-Pair Splash Resistant Goggles <br /> O 3-Pair Nitrite Gloves I <br /> • 10-Disposable Bags with Ties <br /> O Instructions I <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> I <br /> 2014 Stormwater Management Manual for Western Washington <br /> Volume 11- Chapter 4 -Page 317 <br />