Environmental Health - Toxic Substances Hydrology Program

Science Features from the Chlorinated Solvents in Fractured-Rock Aquifers Investigation—Naval Air Warfare Center (NAWC) Research Site, West Trenton, New Jersey

Highlights of research findings.

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USGS scientist at a laboratory fume hood preparing experiments

Enhancement of Trichloroethene (TCE) Biodegradation in a Simulated Groundwater System

This laboratory-based study provides information for understanding enhancement of trichloroethene (TCE) biodegradation in a simulated groundwater system. ...

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USGS scientist with equipment used to inject fluids for a bioaugmentation experiment

Improving Bioaugmentation Strategies for Remediating Contaminated Fractured Rocks

A groundwater bioaugmentation field experiment demonstrated the effectiveness and potential weaknesses of this cleanup technology ...

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Aerial photo of Naval Air Warfare Center, West Trenton, NJ, showing trichloroethylene plumes

Natural Attenuation Accelerates Pump-and-Treat Cleanup of TCE in Fractured Rock

Natural biodegradation of trichloroethylene (TCE) in a contaminated fractured rock aquifer in New Jersey contributes substantially to site cleanup operations. ...

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USGS scientist collecting water-level data from an observation well during an aquifer test

Measuring Aquifer Properties at Contaminated Sites without Interrupting Remediation

USGS scientists have developed a new method for measuring the ability of an aquifer to store and transport water and contaminants without interrupting ongoing pump-and-treat remediation systems. ...

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USGS scientist preparing equipment for a tracer test monitored with geophysical equipment

Improved Simulation of Contamination in Fractured Rock

Improved simulation of contamination in fractured rock through the use of electrical geophysical tests and tracer experiments. ...

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Surface geophysical equipment used to measure electrical resistivity in the subsurface

Visualizing Contamination Pathways in the Subsurface

Visualizing Potential Contamination Pathways in the Subsurface, USGS scientists developed non-invasive methods to identify potential pathways, such as faults, fractures, and gravel beds. ...

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Conceptual diagram of four highly transmissive fracture rock zones

New Paradigm for Fractured Rock Cleanup

USGS scientists develop a new paradigm for hydraulic tests, aquifer simulation, and remedial activities at fractured rock contamination sites. ...

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A sign behind a fence identifying the Naval Air Warfare Center (NAWC), West Trenton, NJ.

What Controls the Migration of Chlorinated Solvents in Fractured Rock?

New project to investigate the geochemical and microbiological processes that affect the migration and natural attenuation of chlorinated solvents in fractured rock ...

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Page Last Modified: April 07 2017