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