| Groundwater System Installation |

Columbia has installed groundwater treatment and extraction systems for public entities, major oil and petrochemical companies, private landowners, engineering companies and consulting firms. These systems remove a variety of organic and inorganic contaminants and typically employ one or more of the following treatment strategies.
- Carbon adsorption
- Air stripping
- Steam stripping
- Chemical oxidation
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- Biological oxidation
- Phase separation
- Neutralization
- Precipitation
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Columbia implements the best technology for each site based on time and space constraints, nature and concentration of the contaminants present, cleanup standards, soil permeability. Columbia provides excavation, piping, electrical and mechanical installation and site restoration services, as required to implement the remediation program.
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