05-1601 Debris Reduction - Laserfiche WebLink

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description of all equipment to be used for debris handling, sorting, processing, incinerating, loading and hauling, stating brand name, model and horsepower, )including all air curtain incinerators). 5.4 Equipment which is designated for use under this contract shall not be used for any other work during the work hours of this contract. The Contractor shall not solicit work ftom private citizens or others to be performed in the designated work area during the period of this contract. Under no circumstances will the Contractor mix debris hauled or processed for others with debris hauled or processes under this contract. 5.5 Reduction of burnable debris may be either air curtain pit burning or portable air curtain incinerators. Section 6.0 specifies requirements for air curtain pit burning. Section 7.0 specifies requirements for portable air curtain incinerators. 5.6 Reduction of burnable wood debris may also be accomplished by chipping and grinding, provided the processing rate given is Section 4.3 can be maintained. Section 8.0 specifies requirements for chipping and grinding procedures. 6. AIR-CURTAIN PIT BURNING. 6.1 The air curtain pit burning method incorporates an earthen pit, constructed by building above grade, and a blower. The blower and pit make up an engineered system that must be precisely configured to properly function. The blower must have adequate air velocity to provide a "curtain effect" to hold smoke in and to feed air to the fire below. The pit configuration must have a precise width, depth and length to compliment the blower. The composition and operation of the air curtain pit incinerator(s) shall conform generally to the drawings in Figures 1,2 and 3 of this scope of work. 6.2 Minimum required air velocity measured at the nozzle is 8,800 ft/min (100 mph). Minimum airflow rate measured at the nozzle is 900 cubic feet per min per linear foot of pit length. (As an example, a 20-ft long pit would require a blower with a nozzle velocity of 8,800 ft/min and nozzle output rate of 18,000 cfm. This example is intended for explanation purposes only, and does not imply a recommended pit length for actual operations). 6.3 The pit should be a maximum of 8 feet wide, and should be ftom 12 to 20 feet deep. The actual pit dimensions should be such that the system functions properly. 6.4 Pits must be constructed out of highly compactable material that will hold its shape and support the weight of the loading equipment. There shall be an impervious layer of clay or limestone on the bottom of the pit to provide a barrier for ground water protection. This layer shall be a minimum of 1 foot thick and be repaired as necessary after each ash removal operation. 6.5 There is to be a minimum distance of 100 feet between the burn area and the nearest debris piles. There is to be a minimum distance of 1,000 feet between the burn area and Scope of Work - Reduction & Site Management May 2005 Page 4 of14