Geo Lab spent several months near Douglas, GA, advancing 326 direct push injection points with a Geoprobe® 6620DT. More than 8,500 linear feet of direct push rod were used in the application of more than 90,000 gallons of solution. Costs were minimized by using direct push points, due mostly to the efficiency of direct push techniques, allowing for large volumes of amendments to be placed with thorough coverage across impacted areas. Most of the proposed injection point locations were in wetland areas with
While Geo Lab Drilling near Atlanta, GA, provides an array of services across the Environmental and Geotechnical spectrum, they contend that remediation projects are often the most rewarding. “With all the subsurface investigation work we do, it’s sure rewarding to be part of the solution once we identify the problem,” said Brian Strickland, Geo Lab’s Owner.
“Our hand in the remediation phase has been continually enhanced and furthered by the Geoprobe® rigs and downhole tooling we deploy,” he continued. The company operates rigs on a variety of in-situ remediation projects including chemical injection, bioremediation and bio-augmentation injection, thermal remediation with Electrical Resistance Heating (ERH), as well as conventional remediation system installation.
To echo the now clichéd mantra of in-situ remediation injection, Brian emphasized, “It is a ‘contact sport,’ and the success of your project will be determined by whether you can apply the amendments with sufficient distribution to achieve direct contact with the contaminants. This is exactly what Geoprobe® rigs and our direct push injection tooling will accomplish,” he said. Without the budget to install high-cost permanent well delivery systems, Geo Lab’s clients have options beyond solely injecting into sparsely laid out existing wells. The company’s fleet of Geoprobe® rigs, and specifically their track-mounted models, have become a staple of their in-situ remediation services due to their capabilities to provide good distribution.
Brian believes the versatility of the track rigs to navigate difficult terrain or tight spaces and alleyways are important in the process. He explained for a thorough distribution of an injected amendment, or an exactly placed ERH electrode, “the ability to navigate into difficult spaces, combined with ample power to advance tooling to required depths, becomes critically important to the overall remediation design.”
Several recent projects using the 7822DT and the 6620DT are described in these photos.
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