Overview of in situ bioremediation and some of the issues to consider when selecting and designing an ISB system for remediation of chlorinated ethene DNAPLs source zones.

Provides technical guidance for regulators, environmental professionals, or permittees for characterizing, designing, constructing, and monitoring compensatory mitigation wetlands as part of a federal, state, or local permitting requirement.

Describes established and emerging technologies for remediating groundwater containing methyl tert-butyl ether and tert-butyl alcohol.

Provides updated information on new developments and innovative approaches in applying PRBs to treat a variety of groundwater contaminants.

A thorough revision and expansion of ISCO-1, outlining the technical and regulatory requirements of in situ chemical oxidation. Provides a more comprehensive discussion on chemical oxidants, along with a more detailed presentation of some of the key concepts of remedial design.

This document provides responsible parties, regulators, stakeholders with practical information and guidance on how to systematically evaluate and manage uncertainty associated with the remediation process by using remediation process optimization (RPO) as a tool.

Presents approaches to performance monitoring of various in situ technologies for treating DNAPL source zones.

A guide for regulators, technology users, and stakeholders to facilitate the use of polyethylene diffusion bag sampling, particularly for long-term monitoring.

Provides guidance for regulators, industry, consultants, and technology vendors in understanding, evaluating, and making informed decisions about the use of constructed treatment wetland systems.

A technical and regulatory guide for those involved in selecting and implementing surfactant/cosolvent flushing of DNAPLs as a remedial action.