Guidance to evaluate, design, construct, monitor, and maintain permeable reactive barriers (PRBs) used as treatment zones to clean up contaminated groundwater.

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

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

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