COLUMBUS, Neb. — EPA Region 7 has issued an amendment to the Record of Decision (ROD) for the 10th Street Superfund Site in Columbus, Neb., according to a press release.

The Environmental Protection Agency (EPA) signed the ROD for the site in February 1995 to address groundwater contamination.

The selected remedy for the 1995 ROD was sampling of municipal and monitoring wells and institutional controls to limit exposure to contamination from the site, stated the release.

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Site activities in 2000 and 2001 led to a final ROD issued in 2005. The final ROD selected the following remedies:

• Continued operation of the Air Sparge/Soil Vapor Extraction and Groundwater Extraction and Treatment (GET) systems

• In Situ Chemical Oxidation (ISCO) in the upgradient portion of the groundwater contaminant plume

• Institutional controls in all three source areas

 

The new ROD Amendment changes the selected remedy for the soil and groundwater contamination at the 10th Street Site, noted the release.

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The selected amended remedy for the contaminated source area soils is building demolition, excavation of soil and off-site disposal at all three source areas, the former One Hour Martinizing dry cleaner, the former Jackson Services and the former Liberty Cleaners.

The area of the excavated soil will be backfilled with non-contaminated soil.

Read the entire press release here.