Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2007_EP-07-301 thru EP-07-400_ - EP-07-352

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The Contractor shall keep the secondary containment facility free of accumulated rainwater or spills. After precipitation, or in the event of spills or leaks,accumulated liquid shall be collected and placed into drums within 24 hours. These liquids shall be handled as hazardous waste in accordance with the provisions in "Hazardous Waste" of these special provisions, unless testing determines them to be nonhazardous. Incompatible materials,such as chlorine and ammonia,shall not be stored in the same secondary containment facility. Materials shall be stored in the original containers with the original product labels maintained in legible condition. Damaged or illegible labels shall be replaced immediately. The secondary containment facility shall have the capacity to contain precipitation from a 24-hour-long, 25-year storm; and 10 percent of the aggregate volume of all containers, or all of the volume of the largest container within the facility, whichever is greater. The Contractor shall store bagged or boxed material on pallets. Throughout the rainy season,bagged or boxed material shall be protected from wind and rain during non-working days and when precipitation is predicted. The Contractor shall provide sufficient separation between stored containers to allow for spill cleanup or emergency response access. Storage areas shall be kept clean, well organized, and equipped with cleanup supplies appropriate for the materials being stored. The Contractor shall repair or replace perimeter controls, containment structures, covers, and liners as needed. Storage areas shall be inspected before and after precipitation,and at least weekly during other times. Stockpile Management The Contractor shall reduce or eliminate potential air and water pollution from stockpiled material including soil,paving material, or pressure treated wood. Stockpiles shall be located out of floodplain when possible, and at least 15 in from concentrated flows of storm water,drainage courses,or inlets unless written approval is obtained from the Engineer. The Contractor may discontinue adding or removing material for up to 21 days and a stockpile will still be considered active. The Contractor shall protect active stockpiles with plastic or geotextile cover, soil stabilization measures, or with linear sediment barrier when precipitation is predicted. Active stockpiles of cold mix asphalt concrete shall be placed on an impervious surface and covered with plastic when precipitation is predicted. The Contractor shall protect inactive soil stockpiles with a plastic or geotextile cover,or with soil stabilization measures at all rimes during the rainy season. A linear sediment barrier around the perimeter of the stockpile shall also be used. During the non-rainy season soil stockpiles shall be covered and protected with a linear sediment barrier when precipitation is predicted. The Contractor shall control wind erosion during dry weather as provided in Section 10, "Dust Control," of the Standard Specifications. Stockpiles of portland cement concrete rubble, asphalt concrete, asphalt concrete rubble, aggregate base, or aggregate subbase shall be covered with plastic or geotextile, or protected with a linear sediment barrier at all times during the rainy season,and when precipitation is predicted during the non-rainy season. Stockpiles of cold mix asphalt concrete shall be placed on and covered with impermeable material at all times during the rainy season,and when precipitation is predicted during the non-rainy season. Stockpiles of pressure treated wood shall be covered with impermeable material and placed on pallets at all times during the rainy season,and when precipitation is predicted during the non-rainy season. The Contractor shall repair or replace linear sediment barriers and covers as needed or as directed by the Engineer to keep them functioning properly. Sediment shall be removed when it accumulates to 1/3 of the linear sediment barrier height. WASTE MANAGEMENT Solid Waste The Contractor shall not allow litter or debris to accumulate anywhere on the construction site, including storm drain grates, trash racks, and ditch lines. The Contractor shall pick up and remove trash and debris from the construction site at least once a week. The WPCM shall monitor solid waste storage and disposal procedures on the construction site. The Contractor shall provide enough dumpsters of sufficient size to contain the solid waste generated by the project. Dumpsters shall be emptied when refuse reaches the fill line. Dumpsters shall be watertight. The Contractor shall not wash out dumpsters on the construction site. The Contractor shall provide additional containers and more frequent pickup during the demolition phase of construction Solid waste includes: A. Brick, B. Mortar, C. Timber, D. Metal scraps, E. Sawdust, Contract No. I 0-OM7104 139