Appendices to Integrated Resources & Solid Waste Management Plan - Dec 2009

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HAWAIH COUNTY MECHANICAL - BIOLOGICAL TREATMENT FACILITY CONCEPTUAL DESIGN Fire Protection Due to the nature of the materials that will be processed at the facilities, features that will minimize the risk of fires starting and spreading should be incorporated into their design and operation. These include the following: • Operating areas of the facilities should be designated as non - smoking areas. • Stationary and mobile equipment should be blown down using compressed air on a regular basis to prevent accumulation of dust and other debris in and around engine compartments and exhaust systems. • Amendment and product stockpiles, and biological conversion and product curing areas should be monitored regularly to prevent development of conditions that could lead to spontaneous combustion. • Storage piles of dry amendment should be limited to 15 feet in height. • Aisles should be maintained between amendment and product storage piles to allow for equipment or fire truck access in the event that a fire occurs. • Necessary firefighting equipment, including portable pumps, hoses and mobile equipment, should be stored at strategic locations onsite and be regularly maintained to ensure they are in good working condition. Nuisance Control Nuisance controls are required to manage dust, litter, and vectors, and to prevent the attraction of animals and birds. Nuisance conditions are managed primarily through engineering controls and the implementation of good operating practices. However, design features such as hard - surface roadways, permanent litter fences, and enclosures should be incorporated into the design of the facilities to complement operational practices. Functional Requirements Feedstock Receiving, Storage and Pre - processing Area Due to the potential for attraction of birds and wildlife and the potential for odors, the two facilities should include enclosed receiving and storage areas for MSW deliveries. Areas where pre - processing of feedstocks is undertaken, should also be enclosed for the above reasons as well as for litter control. The feedstock receiving and storage areas should be sized to accommodate the efficient receipt and storage of MSW, while still providing access to stored material on a "first -in, first -out" basis for processing. Storage piles should not exceed 15 feet in height. A sufficient number of overhead doors should be provided in the waste receiving buildings to minimize waiting times for waste delivery vehicles and also to allow for continued service in the event that one or more doors malfunction (door malfunctions at transfer stations and other waste handling facilities is a relatively common occurrence). Interior floors within the feedstock receiving and storage areas should be sloped such that any leachate or other liquid escaping from feedstocks is contained within the building. Floor 14