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Contamination Reduction Zone: A formal decontamination zone should not be required during the preliminary , investigation . However, an area will ' be designated in the event extreme gasoline contaminationi� s encountered. The decontamination zone will be an ai.rea'� where personnel can clean protective equipment. A !, waste container will be placed outside of the exclusion !,,.waste contaminated equipment can be placed inside and covered. Support Zone : A Support Zone, the outermost zone, must be defined for each field activity. Support equipment is located in this uncontaminated or clean . area, Normal work clothes are appropriate within this ;o.zone. The location of this zone depends on factors such as, accessibility, wind i direction ( it should be up wind ¢ of excavation) , and resources (e.g. roads , utilities, sh8lter) . i Decontamination Procedures Petroleum hydrocarbon liquids and vapors' are anticipated. Due to the volatile nature of hydrocarbori_ s that may be encountered during the initial excavation and sampling . operations , decon- tamination of equipment and vehicies , will be of minimal importance since the volatile hydrocarbons will rapidly vaporize . Therefore , no formal decontamination procedure will be followed with the exception of general cleaning no eating, drinking or smoking will . be permitted in the exclusion zone. All personnel involved in work activitiesowill be instructed to wash their hands , face , neck and forearms at the end of the work day. Soap, water and towels will be provided at the site f.. for this purpose , The field personnel .will also be instructed to shower at home at the end of each workday, As work progresses , the nature of materials handled and the extent of contamination may p,ossi'.bly require formal decontamination procedures and delineated work/clean zones. However ,' we do not expect that such ,,formal procedures will be necessary at this site and will only proceed at the Safety f Officer discretion . In the event ,"extreme contamination is encountered , decontamination of personnel , equipment and vehicles will be important to insure that contamination dose ` not spread to unsuspecting people' an-'d . property. Personal decontamination mainly involves personal hygiene. Contamination ' should not be present on the skin '1,11 :;';the proper protective methods specified in this plan are) used. However all field personnel will be instructed to follow these guidelines to insure that contamination dose not remain on equipment, sample containers or in contact with their 1�odie6s. I� k Ir �: I y.