A jointly developed protocol for determining when, where, and how to use diffusion samplers for groundwater sampling.

Review of three general types of emerging DNAPL characterization technologies—including geophysical, cone penetrometer, and in situ tracers— and two categories of emerging DNAPL remediation technologies—thermal enhanced extraction and in situ chemical oxidation.

Description of nitrate in the environment, sources of nitrate, environmental and health effects of nitrate, current nitrate remediation practices, and the emerging technology of EISBD.

U.S. Air Force document revised with state input to provide technical information for PRB installation.

A matrix of data requirements for a technology verification process to enhance states’ confidence in the technology verification and demonstration results.

Resource of organizations, activities, and technical terminology related to radioactive contamination.

Review of regulatory issues associated with PRBs.

Description of practices to be used to recognize and evaluate the presence of natural attenuation of chlorinated solvent contamination.

Presents a summary of results of surveys returned by people who took the natural attenuation course.

Provides regulatory guidelines for the installation of permeable reactive walls for the remediation of inorganics and radionuclides.