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RINGS OF FIRE Bury-It Drown-It The decision to bury a tire pile also has Water, foam, and additives have their own merits. Material as diverse as the soil on place as an option. The drown-it strategy site, to trucking in cement dust, sand, is best employed with forethought and gravel, and even crushed coral rock have careful pre-planning. Knowing in advance been employed. the topography and exposure hazards to above ground water sources will be Sand, cement dust, quick lime, and critical. Pre-planning for control and crushed coral rock are all high in calcium containment will ease the operation. content. Remember, calcium scrubs sulfur from the emissions, creating calcium The drown-it strategy also has a number sulfate or gypsum. of drawbacks. Cooling the fire will increase the toxic air emissions as the The bury-it strategy could be employed in combustion process is slowed down. An areas that have minimal water supply or in inordinate amount of water runoff areas that are densely populated. The combined with pyrolitic oil will be the decision to bury a tire fire would take in result of trying to drown out a tire fire. to consideration reducing the toxic smoke for the sake of public health. Applying water to a tire fire has been successfully employed when the fire This strategy was used successfully in Saint service is prepared. The tire fire in Santa Amable, Quebec, Danville, New Rosa again serves as a case in point. The Hampshire, and Lincoln, Nebraska. Wet scrap tire pile was surrounded by a sand also proved effective at a tire fire in number of high hazards. The responding Georgia. fire departments had diked a lower level parcel to collect the run-off. The use of Geological considerations play an water on this fire was a critical call by the important role in the bury-it strategy. incident commander who, aware of the While the tire fire is entombed, tires can hazards, was prepared to employ the still pyrolize and push toxic oil into the drown-it strategy. soil and underground water sources. Burying a tire fire that is on top of clay The effectiveness of working lines applied soils may delay the oil from filtering to to a tire fire is questionable. Handlines underground water supplies. To alone cannot reach the interior spaces of determine the release of pyrolitic oil, a tire. And when you consider that the check down gradient from the pile for tire was originally designed to resist and contamination. repel water, directing water on a tire pile makes even less sense. 50