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12.0 RECOVERY & RE-ENTRY 12.1 GENERAL This section provides general guidelines for recovery and re-entry operations to be followed when a hazardous materials emergency has been brought under control and no further significant releases are anticipated. Decisions to relax protective measures emergency will be based on an evaluation of chemical concentrations which exist at the time of consideration and on the projected long-term exposure which may result in dose commitments to residents and transients in the affected area. 12.2 RECOVERY Recovery operations may be coordinated and directed from either the County EOC or the on -scene command post. 12.2.1 Environmental Analysis Prior to allowing public access to potentially contaminated areas, the Indian River County Health Department and the State Department of Environmental Regulation will evaluate the environmental conditions in the affected areas by conducting direct measurements and collecting environmental samples for laboratory analysis. Environmental sampling will proceed from the perimeter of affected areas to the interior. In-state laboratory analysis of collected samples may be performed at any of the laboratories identified in Section 7.0, or by independent contractors made available by the state departments of Environmental Regulation or Natural Resources. 12.2.2 Containment and Clean-up At any release where the lead agency determines that there is a threat to public health, welfare or the environment, the lead agency may take any appropriate action to prevent, mitigate or minimize the threat to the public health, safety, or to the environment. In determining the appropriate extent of action to be taken at a given release, the lead agency should first review the preliminary assessment and current site conditions. Indian River County Emergency Plan for Hazardous Materials Page 75