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Green Remediation Best Management Practices: An Overview Published 2022
Contaminated site cleanups involving complex activities may benefit from a detailed environmental footprint analysis to inform decision-making about application of suitable best management practices for greener cleanups. The U.S. EPA's two-page fact sheet explains how EPA's methodology provides a roadmap for conducting such an analysis and summarizes the Agency's preferred metrics and processes when an analysis is conducted.

Green Remediation Best Management Practices: Soil Vapor Extraction and Other Air-Driven Systems Published 2022
The U.S. Environmental Protection Agency (EPA) Principles for Greener Cleanups outline the Agency's policy for evaluating and minimizing the environmental footprint of activities involved in cleaning up contaminated sites. Use of the best management practices (BMPs) recommended in EPA's series of green remediation fact sheets can help project managers and other stakeholders apply the principles on a routine basis, while maintaining the cleanup objectives, ensuring protectiveness of a remedy, and improving its environmental outcome. Soil vapor extraction (SVE) is used at certain sites to address volatile organic compounds (VOCs) that are sorbed to soil within the unsaturated zone. An SVE system extracts air from, or sometimes injects air into, the vadose zone to strip the VOCs from soil and transfer the vapors to an aboveground treatment system for destruction or recovery. In contrast, air sparging (AS) involves injecting air into contaminated groundwater to drive volatile and semi-volatile contaminants into the overlying vadose zone by way of volatilization. The vapors are then removed from the vadose zone, typically by a co-located SVE system. Cleanup at some sites also may require mitigation of vapor intrusion (VI) into nearby buildings until remediation of soil or groundwater is complete.

Green Remediation Best Management Practices: Integrating Renewable Energy Published 2022
The U.S. Environmental Protection Agency (EPA) Principles for Greener Cleanups outline the Agency's policy for evaluating and minimizing the environmental footprint of activities involved in cleaning up contaminated sites. management practices (BMPs) identified in EPA's series of green remediation fact sheets can help project managers and other stakeholders apply the principles on a routine basis, while maintaining the cleanup objectives, ensuring protectiveness of a remedy, and improving its environmental outcome. Renewable energy provides a significant opportunity to minimize energy- and air-related contributions to the environmental footprint of cleaning up hazardous waste sites. Use of renewable energy during site cleanup also can decrease burdens on local power grids and provide a backup supply of power.

Green Remediation Best Management Practices: Pump and Treat Systems Published 2021
The goal of these fact sheets is to share technical information on best practices that build sustainability into contaminated site cleanup operations across the portfolio of remediation approaches. The updated fact sheet includes new BMPs gathered from projects across the country and describes how climate resilience is being built into our sites to ensure continued remedy protectiveness. The fact sheet also highlights synergies between green remediation and climate adaptation practices, where one action provides both greenhouse gas (GHG) mitigation and climate resilience. Examples are BMPs involving use of renewable energy, green infrastructure or carbon sequestering vegetation that mitigate GHG emissions and add resilience to ongoing climate change. The fact sheet also highlights how advanced practices gleaned from Superfund's optimization and technical support work, such as reclaiming and reusing treated water for beneficial purposes, help reduce the environmental footprint of remedies.

Green Remediation Best Management Practices: Bioremediation Published 2021
The goal of the green remediation best management practice (BMP) fact sheets is to share technical information on best practices that build sustainability into contaminated site cleanup operations across the portfolio of remediation approaches. This updated fact sheet includes new BMPs gathered from projects across the country and describes how climate resilience is being built into our sites to ensure continued remedy protectiveness. The fact sheet also highlights synergies between green remediation and climate adaptation practices, where one action provides both greenhouse gas (GHG) mitigation and climate resilience. Examples are BMPs involving use of renewable energy, green infrastructure or carbon sequestering vegetation that mitigate GHG emissions and add resilience to ongoing climate change. The fact sheet also highlights how advanced practices gleaned from Superfund's optimization and technical support work, such as three-dimensional and high-resolution imaging techniques for site characterization, support more precise remedies with smaller environmental footprints.

Community Guide to In Situ Sediment Amendments Published
The Community Guide series (formerly Citizen's Guides) is a set of two-page fact sheets describing cleanup methods used at Superfund and other hazardous waste cleanup sites. Each guide answers six questions about the method: 1) What is it? 2) How does it work? 3) How long will it take? 4) Is it safe? 5) How might it affect me? 6) Why use it?

Community Guide to In Situ Carbon Amendments for Groundwater Published 2021
The Community Guide series (formerly Citizen's Guides) is a set of two-page fact sheets describing cleanup methods used at Superfund and other hazardous waste cleanup sites. Each guide answers six questions about the method: 1) What is it? 2) How does it work? 3) How long will it take? 4) Is it safe? 5) How might it affect me? 6) Why use it?

Community Guide to Biochemical Reactors Published 2021
The Community Guide series (formerly Citizen's Guides) is a set of two-page fact sheets describing cleanup methods used at Superfund and other hazardous waste cleanup sites. Each guide answers six questions about the method: 1) What is it? 2) How does it work? 3) How long will it take? 4) Is it safe? 5) How might it affect me? 6) Why use it?

Community Guide to Amended Sediment Caps Published 2021
The Community Guide series (formerly Citizen's Guides) is a set of two-page fact sheets describing cleanup methods used at Superfund and other hazardous waste cleanup sites. Each guide answers six questions about the method: 1) What is it? 2) How does it work? 3) How long will it take? 4) Is it safe? 5) How might it affect me? 6) Why use it?

Review of Peer-Reviewed Documents on Treatment Technologies Used at Mining Waste Sites Published 2021
The research in this report was conducted to capture the capabilities, efficiencies, technological and site-specific requirements, and lessons learned for technologies and methods used for mining site cleanup. EPA's goals for the work presented in this document were to 1) determine if there are any trends in treatments or methods used; 2) understand successes and failures of the technologies and methods to evaluate whether there are gaps where future technologies could be developed or current ones refined; and 3) provide information in one place to aid decision of whether a given technology or method might be appropriate for use at a particular site, based on information obtained from the case studies.

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