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Q.E.R. Eorprises, Inc. DISASTER RESPONSE DIVISION • Construction of non-combustible "warning" stop blocks (at least 1 foot in height) for equipment located at the burn pit • Use limestone (or equal material) for the construction of the "pit" with reinforced earth anchors, or wire mesh to support the loader ramps. • Use clay or limestone to create an impervious layer on the bottom of the pit to prevent leaching of the ash from the aquifer. This layer shall be at least 1-foot deep and will be regularly inspected and maintained at that depth in the event scraper activity removes part of the layer during operations. • Seal the pit ends at least four feet high. • Pit construction (in accordance with this solicitation) shall be 8-9 feet wide, and 14 feet deep. • A 12" dirt seal will be placed on the lip of the burn pit area to seal the lower nozzle. • The blower will be configured to direct the airflow to strike the wall of the pit 2 feet below the edge. Operators will be instructed that the debris should not break the path of the airflow except during dumping. • Equipment used will be tested and adjusted to assure that a minimum nozzle velocity of 8,800 ft/min (100 mph) and a volume of 900 cf/min/linear feet is produced during burn operations. • The length of the pit shall be no longer than the length of the blower nozzle. • The operators shall be instructed to load the pit uniformly along its length. • Operators will also be instructed to extinguish the fire at least 2 hours before 410removing the ash. • Water trucks will be used to dampen ash residue as well as areas surrounding the burn site. Chipping/Grinding Reduction of debris by chipping and/or grinding is an opportunity to recycle the vegetative debris els back to an economically beneficial use. However, it (mss` the overall economic impact of chipping/grinding 0�5 ��`�—_ ._ }n� compared to burning will have to be reviewed f `�_ ` before a determination can be made. Grinding/Chipping is the reduction of woody, vegetative debris by cutting and pounding the debris to reduce the woody materials into small pieces or "chips" This method normally produces a reduction of between 3 to 1 and 5 to 1, whereas burning reduces the debris by approximately 95%. However, wood chips have the possibility to be recycled and used as mulch, fuel, ground cover and animal bedding to name a few. The availability to recycle the chips would be a significant factor in determining the economic value of chipping/grinding. In the construction and operation of a chipping/grinding reduction operation, special consideration is given to the following factors: • Grinding machines must have a clearance of 300 feet. Warning signs must be stationed around the perimeter of the grinding equipment, warning of possible flying objects from the grinders. 40