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.

Assists practitioners in formulating a proper strategy for removing the threat that metal, particularly lead, presents at closed small arms firing ranges.

Provides guidance for the systematic characterization, evaluation, and appropriate design and testing of ISB for any biotreatable contaminant.

Description of some aggressive in situ technologies that target DNAPL source zones for elimination or substantial reduction to achieve more rapid remediation and speedier site closure.

Includes descriptions of three commonly used chemical oxidants and eight case studies, as well as four examples of state regulatory applications.