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DocuSign Envelope ID:5FA4B1AC-B897-4C32-A1E4-4B4A8885A341 <br /> Cl aw'DEI- G G-oiwd is vG u d f <br /> ULF RFP for Disaster DebrisClearance and Removal Services <br /> Orange County, NC <br /> Methods of Debris Reduction <br /> There are two primary types of reduction methods—incineration and <br /> chippinglgrindIng.After ail major storms,we have used both grinding <br /> and burning to reduce debris, however, grinding has become the <br /> more common method due to environmental issues with burning. <br /> Chipping and Grinding 'The chipping and grinding of vegetative debris reduces the volume ' ' <br /> by 75%. Many times clean chips will be recycled as bio-mass fuel. <br /> CrowderGulf is very experienced with chipping/grinding debris and <br /> has used this method in the majority of our disaster contracts for the past ten years.When grind!nglchlpping is utilized <br /> as the reduction method, all safety and compliance regulations are enforced throughout the operation. <br /> • Incineration <br /> There are several incineration methods available for volume reduction. These include uncontrolled open-air <br /> incineration,controlled open-air Incineration,air curtain pit <br /> Incineration,and portable air curtain incineration. Portable Air Curtain Pit Burner <br /> air curtain Incineration is the most efficient incineration <br /> system available because the pre-manufactured pit is <br /> engineered to precise dimensions to complement the <br /> blower system. Any burning method used will only be <br /> conducted with concurrence from the County. Burning BloWerHdexel— <br /> vegetative debris can produce up to a 95%reduction rate. I f '��Ist� <br /> Air Curtain A.- <br /> In those situations where air curtain incineration may be G B�N°r <br /> approved by the County, all environmental complianceDid Sul <br /> el.`� <br /> and safety, concerns will be addressed within the site Compaclad <br /> specific plan. Setbacks and buffer zones will be <br /> Deep <br /> established within and around the reduction sites not only i <br /> for the public safety but also for the safety of the debris flrnpuvlous Layof <br /> operations. A setback of at least 100' will be maintained <br /> between the debris piles and the incineration area. There i=. _ <br /> will be a buffer of 1,000'between the incineration area and s <br /> the nearest building in order to create a zone for MaxWldlh Exls ing Ground <br /> emergency vehicles, If needed. The fire will be extinguished two hours before anticipated removal of the ash mound. <br /> The ash mound will be removed before it reaches two <br /> Overview of an Air Curtain Operation feet below the lip of the Incineration pit. To prevent <br /> explosions, hazardous or contaminated flammable <br /> material will not be placed in the pit. Finally,fencing and <br /> _ signage are simple and effective means to keep the <br /> NOZZLE _ -f _ public away from the incineration area.The CrowderGulf <br /> AIR CURTAIN PLENUM . Environmental Protection Plan address and provides <br /> i <br /> _-BL4W5R detailed guidance on DMS environmental concerns <br /> . �, such as dust, smoke, erosion, storm water plus <br /> i PIT WALL EITHER DIRT OR hazardous and toxic wastes. If the DMS is near an <br /> PP 2-MAN U FACTU R M environmentally sensitive area or has historical sites In <br /> close proximity,special environmental consideration will <br /> be taken to protect and preserve such areas. <br /> Debris Reduction Time Lines <br /> The following Debris Reduction Plan Time Line provides <br /> an overview of tasks and Identifies both the <br /> JIMPERMOUs management personnel responsible and the time frame <br /> LAYER within which each task shall be completed, <br /> 109 <br />