title: Early decision framework for integrating sustainable risk management for complex remediation sites: Drivers, barriers, and performance metrics.
abstract: As the environmental remediation industry matures, remaining sites often have significant underlying technical challenges and financial constraints. More often than not, significant remediation efforts at these "complex" sites have not achieved stringent, promulgated cleanup goals. Decisions then have to be made about whether and how to commit additional resources towards achieving those goals, which are often not achievable nor required to protect receptors. Guidance on cleanup approaches focused on evaluating and managing site-specific conditions and risks, rather than uniformly meeting contaminant cleanup criteria in all media, is available to aid in this decision. Although these risk-based cleanup approaches, such as alternative endpoints and adaptive management strategies, have been developed, they are under-utilized due to environmental, socio-economic, and risk perception barriers. Also, these approaches are usually implemented late in the project life cycle after unsuccessful remedial attempts to achieve stringent cleanup criteria. In this article, we address these barriers by developing an early decision framework to identify if site characteristics support sustainable risk management, and develop performance metrics and tools to evaluate and implement successful risk-based cleanup approaches. In addition, we address uncertainty and risk perception challenges by aligning risk-based cleanup approaches with the concepts of risk management and sustainable remediation. This approach was developed in the context of lessons learned from implementing remediation at complex sites, but as a framework can, and should, be applied to all sites undergoing remediation.
authors: CDM Smith, 110 Fieldcrest Avenue, PO 8, Floor 6, Edison, NJ 08837, USA. Electronic address: harclerodema@cdmsmith.com.
authors: Melissa A
authors: MA
authors: Harclerode
authors: CDM Smith, 50 West 14th Street, Suite 200, Helena, MT 59601, USA.
authors: Tamzen W
authors: TW
authors: Macbeth
authors: CDM Smith, 231 Baker Road, Shutesbury, MA 01072, USA.
authors: Michael E
authors: ME
authors: Miller
authors: CDM Smith, 14 Wall Street, 17th Floor, New York, NY 10024, USA.
authors: Christopher J
authors: CJ
authors: Gurr
authors: CDM Smith, 411 Aviation Way, Suite 230, Frederick, MD 21701, USA.
authors: Teri S
authors: TS
authors: Myers
mesh_terms: D004777:Environment; D052918:Environmental Restoration and Remediation / Q000379:methods*; D006801:Humans; D018570:Risk Assessment / Q000379:methods*; D012308:Risk Management / Q000379:methods*; D012959:Socioeconomic Factors; D035501:Uncertainty; D014481:United States
keywords: Complex site remediation; Risk assessment; Risk management; Risk perception; Risk-based cleanup; Sustainable remediation