Microbial Degradation of Chloroethenes in Ground Water Systems

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Spent chlorinated solvents from an old dry-cleaning facility near Soldotna, Alaska, created a plume of chloroethenes in the subsurface. USGS scientists are studying the natural attenuation of the plume using a combination of biological and geochemical methods. The Kenai River can be seen through the trees in the background

Diffusion samplers were placed in the bed sediments of the Kenai River, AK, to monitor the biogeochemistry of a chloroethene plume as it discharges into the river

USGS scientists studied the natural attenuation of a chlorinated-solvents plume at an old dry-cleaning facility near Soldonta, AK. Here ground water is being sampled to assess redox conditions in the plume

A flow-through chamber is used to measure redox conditions (pH, Eh, temperature, .) in ground water being pumped from a well in a naturally biodegrading plume of chloroethenes, Soldotna, AK