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CRDWDER CrowderGulf 1 j GULF RFP Disaster Debris Management and Disposal Services 18-04-02 City of Sunny Isles Beach, FL Methods of Debris Reduction There are two primary types of reduction methods — incineration and '. - . chipping/grinding. After all major storms, we have used both grinding and - , I burning to reduce debris, however,grinding has become the more common , ; 2:-',7.--,47,t16 _ -, .., method due to environmental issues with burning. `, �, t.,,i • Chipping and Grinding .` ,- j 4 The chipping and grinding of vegetative debris reduces the volume by 75% - .„;-;.,41:-..i.."1-,,;:::. „,-;,.. - . /; rt. .�c,4 Itis_ ' .P,l Many times clean chips will be recycled as bio mass fuel. iF �, f - a;r CrowderGulf is very experienced with chipping/grinding debris and has used this method in the majority of our disaster contracts for the past ten years. When grinding/chipping is utilized as the reduction method, all safety and compliance regulations are enforced throughout the operation. CrowderGulf has ground over 35 million cubic yards of debris since 2003. • Incineration There are several incineration methods available for volume reduction.These include uncontrolled open-air incineration,controlled open-air incineration, air curtain pit incineration and portable air curtain incineration. Portable air curtain incineration is the most efficient incineration system available because the pre-manufactured pit is engineered to precise dimensions to complement the blower system.Any burning method used will only be conducted with concurrence from the City of Sunny Isles Beach . Burning vegetative debris can produce up to a 95% reduction rate. In those situations where air curtain incineration may be approved bythe Ci all environmental compliance and safetyconcerns will be addressed within the site specific plan. Setbacks pP City, p P and buffer zones will be established within and around the reduction sites not only for the public safety but also for the safety of Il the debris operations. A setback of at least 100'will be maintained between the debris piles and the incineration area. There will be a buffer of 1,000' between the incineration area and the nearest building in order to create a zone for emergency vehicles, if needed. The fire will be extinguished two hours before anticipated removal of the ash mound. _ I; The ash mound will be removed before it reaches two feet below the lip of the incineration pit. To prevent explosions, hazardous or contaminated flammable material will not be placed in the pit. Finally, fencing and signage are simple and effective means to illkeep the public away from the incineration area. f Side View A 1 . Side View B Top Yew Pit i'it Pit.. Pit 1, 11 ft Pit • 9-12 ft Pit Torg 3-4 m 9.-12 ft.�• Pit deep e,m 3-4 m wide The CrowderGulf Environmental Protection Plan will address and provide detailed guidance on DMS environmental concerns II such as dust,smoke,erosion,storm water plus hazardous and toxic wastes. If the DMS is near an environmentally sensitive area or has historical sites in close proximity,special environmental consideration will be taken to protect and preserve such areas. 1 II 71