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A Risk-Management Strategy for PCB-Contaminated Sediments
likely, the collection of data during the implementation of the current management strategy may form the basis for future management decisions. Adequate data for pre-remediation baseline assessment are often lacking at sites currently undergoing remediation, making evaluation of the effectiveness of the risk-management strategy difficult.
Short-term and long-term assessments of the efficacy of the risk-management strategy require carefully planned and adequately funded monitoring. Information gathered from assessments of completed and ongoing management projects should be used in the risk assessments, and within the risk-management framework, to inform decisions about remediation options and management strategies for other sites. The information to be gathered should not be restricted to that identified in the remedial investigation/feasibility study guidelines or in the guidelines for conducting human health or ecological risk assessments. Rather, data-gathering efforts should be directed to determine the successful management of all types of risk, including societal, cultural, and economic risks. Therefore, the types of information that might need to be gathered could include, but not necessarily be limited to, data such as number of fish caught by sport fishers, loss of revenues to marinas, and restrictions on navigation.
Each site should have a communication mechanism by which the affected parties can have rapid and easy access to monitoring data and a clear understanding of the implications of the data. Various mechanisms may be used to provide this access; interactive websites and a central repository for the data such as a public library may be used. These mechanisms need to be coupled with an agreed upon mechanism for involvement of all parties in the management process if the monitoring data indicate significant deviations from the expected results.