Soil & Groundwater E-Zine
March 2013

This Month´s Featured Articles, Papers & Reports
In Situ Bioremediation of Chlorinated Solvents
ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source areas.  Subsequent stimulation of in situ biological treatment via reductive dechlorination was evaluated and ...
Drilling: Then & Now
In a recent conversation with a colleague, we discussed the then and now of drilling. Reflecting back to 1988, it was jarring to realize that we have entry-level Geologists & Engineers today that were born that year! They won’t ever truly know what it was like then, and how far the drilling industry has come. They would be amazed at the lives, limbs, and hearing lost over past decades, and shocked about the distinct double-standard that existed regarding contamination issues on job sites. In ...
Geotech - Rapid changes in Landfill Gas and Biogas Analysis
Biogas analysis requirements are changing. Designed-in future proofing in gas analysers helps users keep up. It means they can quickly and easilyupgrade their newly purchased products with new features anywhere in the world, anytime with online downloads available from Geotech. Positive global customer feedback on the new Geotech range of biogas andlandfill gas analysers launched in early 2012 prompts the second set of new developments. This Geotech rapid response on the GA5000 landfill gas analyser and the BIOGAS 5000 especially suits users in countries with changing operational and legislative conditions. Read more

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