This manual, prepared under the U.S. Environmental Security Technology Certification Program (ESTCP), is a guide to the use of in situ reactive amendment technologies for remediation of contaminated wetland hydric soils.  The manual provides a toolbox of methods with which to approach site characterization/monitoring, treatability testing and demonstration, and remedy implementation.

The following information can be found in the Guidance Manual:

(1) A repository of literature sources for active in situ remedial projects;

(2) A conceptual approach to managing the remediation of wetland hydric soils;

(3) Suggestions for project objectives, metrics, and evaluation criteria;

(4) A discussion of implementation means and methods; and

(5) An assessment of technology cost.

This guide is based upon a field demonstration conducted at Aberdeen Proving Ground, located in Aberdeen, Maryland, to determine the most effective amendment to immobilize PCBs in wetland sediments among the following agents: powdered activated carbon slurry (Slurry Spray), two pelletized AC products (AquaBlok® and SediMite™), and an engineered manufactured soil cover system (sand control).

ESTCP is the United States Department of Defense’s environmental technology demonstration and validation program.  The Program was established in 1995 to promote the transfer of innovative technologies that have successfully established proof of concept to field or production use.  ESTCP demonstrations collect cost and performance data to overcome the barriers to employ an innovative technology because of concerns regarding technical or programmatic risk.