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.

Provides information on GPOs and the broader topics of geophysical surveys, equipment, and methodologies currently used in munitions response actions.

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.

Presents the results of the survey of state regulator perspectives on long-term stewardship.

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

Focuses on the decisions and facilitating the decision processes related to design, evaluation, construction, and post-closure care associated with alternative final covers.

An overview of vapor intrusion, contaminant types with vapor intrusion potential, brownfield sites’ potential to have indoor air exposure from vapor intrusion, and steps that can be taken to limit exposures.