Decisions on clearance and resumed use/re-occupancy will be based, in part, on recommendations from the planning team that include evaluation of decontamination efficacy data and clearance sampling. The process for re-entry should be closely coordinated with the Stakeholder Working Group. Decision-makers should be prepared to answer any questions or concerns from the public concerning clearance and resumed use/re-occupancy decisions, including any use restrictions.
Generally, local public health authorities are responsible for the re-occupancy/resumed use determinations, based upon the sampling data, interpretation of the data, and site-specific clearance goals.
Decision-makers should be prepared to provide publicly available information describing cleanup activities and the basis for determining resumed use of a water supply. Documentation should not only be available in layperson summaries or fact sheets but, ideally, should include more detailed information regarding sampling, results, and involved/approving agencies. If possible, materials should include point of contact information to address technical questions about the remediation effort and resumed use/re- occupancy decisions. Effective risk communication should continue to be a priority during this phase and throughout resumed use/re-occupancy of an impacted area or resumed use of a water system.