Ex-Situ: Pump and Treat

Thursday, August 26, 2010 by August Mack Environmental, Inc.

The ex-situ pump and treat cleanup technology results in the following:

  • Contaminated groundwater is removed from the subsurface by pumping
  • It is often used with treatment technologies such as Air Stripping and Granular Activated Charcoal
  • Requires understanding of aquifer characteristics (pilot-testing)
  • Requires discharge to sanitary (POTW permit) or storm sewer (NPDES)
The advantages of the ex-situ pump and treat method are the following:
  • Effective for capturing contaminant plumes and controlling migration
  • Mass removal
  • POTW discharge parameters negotiable
The disadvantages of the ex-situ pump and treat method are:
  • Difficult to clean up sites, generally only contains. (Rebound issues)
  • Long operation period
  • Annual operation and maintenance costs
  • Potential air emission issues

For more information on ex-situ pump and treat cleanup technology, call one of the environmental analysis and remediation experts at August Mack Environmental at 800.579.0770.

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