Toxic Substances Hydrology Program
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U.S. Geological Survey and the Virginia Polytechnic Institute and State University (Virginia Tech) presented the National Ground Water Association's short course "Estimating Times of Remediation Associated with Monitored Natural Attenuation and Contaminant Source Removal" in:
This course presented a decision-making framework and methodology for assessing monitored natural attenuation (MNA) and estimating timeframes required for natural attenuation processes to lower contaminant concentrations to regulatory goals. An interactive computer program (Natural Attenuation Software, NAS) developed by the USGS and Virginia Tech in cooperation with the U.S. Navy's Naval Facilities Engineering Command (NAVFAC), Southern Division was demonstrated at the course. The software is designed to provide quantitative estimates of how effectively source-zone treatment will reduce plume size and how long remediation is expected to take using site-specific data and remediation goals. More Information
USGS Information on Natural Attenuation
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