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QIUF.H. EInc. DISASTER RESPONSE DIVISION • The grinding machines must have screens, which produce chips not exceeding 4 inches in length and % inch in diameter. • Liners shall be placed underneath grinders, and other stationary equipment, as a _ . ,' �► preventative measure against possible leaks ?' or spills exposing the soil and groundwater to contaminants. • Debris must be sorted and clean of other " 'L_ , contaminants such as metals. . • , • • Operators must wear hard hats even in closed cab machines while operating. • Root Rake loaders are used to avoid contaminating the debris entering the grinder with dirt or sand. • With a grinding capacity of approximately 800 CYD in an hour, debris hauled into the DMS site can be reduced and recycled while other debris is coming in making room for more debris and not requiring as much land mass for the site. • Ground debris or mulch shall be stored onside in piles no higher than 15 feet. Such piles shall not remain on site for longer than seven (7) days and haul out procedures shall be put in place to ensure the continued turnover of the material. Ground debris or mulch, is monitored daily for heat and internal combustion. Segregation of Debris Before material is brought into the DMS, all preparations for the site as outlined previously will be substantially completed. The DMS will have staging areas for each category of debris brought into the site. All debris will pass by the inspection tower after entering the site and all loads will be inspected. Although every effort will be made to segregate debris on the right-of-way before loading, debris materials still become mixed and some loads are so co-mingled that they are classified as mixed debris loads. These loads will be directed to the area defined on the site plan as the "mixed debris" pile. This material will be sorted and separated by machines with grapples and "thumbs" and by hand labor and placed into the C&D, Vegetative, HHW, White Goods, and Metal Piles. C&D Debris is non-burnable, non-recyclable debris that will eventually be delivered to a landfill. Samples of this type of debris include mattresses, clothing, household garbage, concrete, asphalt, metals, plastics, manufactured furniture, building components, etc. Parts of this material, if well separated, can be reduced by grinding before landfill, so as to reduce the cost of hauling and tipping fees (if charged by volume). Other parts, such as metal can be recycled if well separated and cleaned. Vegetative Debris is burnable debris and can be reduced by either incineration or by chipping/grinding. If reduced by incineration, the estimated reduction rate is 95% and leaves 11 the ash residue to be hauled off and disposed. If reduced by chipping/grinding, the reduction rate is estimated at only 60%-75%, however, the by-product, mulch, can be recycled. The 41