Capping is a cleanup method used for contaminated underwater sediments where clean material is placed over the contaminated area to reduce exposure and keep contaminants from spreading. It can be used alone or with other cleanup methods and works by isolating contaminants from the surrounding water, helping reduce their movement, availability, and potential harm to aquatic life.
The Sediment Cap Chemical Isolation Guidance (SD-1, 2023) provides a framework for the design, construction, modeling, and long-term monitoring of sediment caps, with a focus on their chemical isolation function. Intended for regulators, stakeholders, consultants, responsible parties, and site owners, it serves as a supplement to the Contaminated Sediments Remediation (CS-2, 2014) guidance and expands on considerations for implementing and maintaining effective sediment cap remedies.
Topic(s): Chemical Isolation, Remediation Technologies, Sediment Cap
