GeoSierra’s Trenchless PRB Placement technology enables installation of PRBs at sites where trenching is not an option, i.e. deep PRB installations like the five we’ve installed that are deeper than 100-feet – or shallow sites with complexities such as beneath streets congested with underground and overhead utilities or even within active railroad right-of-ways like the five (5) PRBs totaling 3,650-feet in length we are near completing at the former Kelly AFB in San Antonio, Texas. The Kelly AFB projects are the largest PRB project ever completed.  To read what the Air Force Center for Environmental Excellence has written about this project, click this link and scroll to the Kelly AFB article.  To read about the 500-foot long and 95-foot deep PRB we installed for Tinker AFB, click here.

As PRBs have come to be widely accepted as superior to pump-and-treat systems, GeoSierra has been privileged to be selected by a number of Fortune 500 companies to design and install our deep PRBs at a number of superfund sites. As you browse through this website you will be able to learn about these customer sites and understand the reasons why GeoSierra was chosen.

GeoSierra and our customers believe the days of applying pump-and-treat systems for remediation of VOCs and metals are now limited and this is especially due to GeoSierra's technological breakthroughs. At an average of less than 1/4th of the life cycle cost of pump-and-treat systems, PRBs are the obvious choice given the right site characterization and contaminants. We're proud of the contributions GeoSierra's deep PRB installation technology is making to accelerate cleanup of groundwater contamintation plumes while at the same time dramatically reducing costs. We hope you will take time now to learn more about GeoSierra and then follow up with us to discuss possibilities you may have for us to work with you.