Groundwater control technologies include a variety of applications. These barriers are designed to stop groundwater from migrating into a construction zone or from transporting hazardous substances downstream. The most common application includes subsurface barriers constructed using the slurry trench method. Slurry trenches are normally constructed with hydraulic excavators and their widths can vary from 1.5 to 5.0 feet. Excavations greater than 100 feet deep require the use of a crane and clam bucket, or other specialty equipment. In most cases, the excavation is "keyed" 2 to 3 feet into a low permeability stratus such as clay or bedrock to assure minimal leakages under the final wall. It is common for the trench to be backfilled with a mixture of excavated soil, dry bentonite, and bentonite slurry. The backfill is placed into the end of the slurry trench, in a manner than displaces the slurry forward, toward the ongoing excavation and continues until the barrier wall is complete.
RECON installed a secondary product containment system around the perimeter of a terminal storage unit facility to prevent any product from migrating off the property. RECON used both the Slurry Trench and Jet Grouting techniques to complete this project.
GT Omniport, a multimodal facility located in Port Arthur, Texas, is an industrial park and liquids terminal offering rail, truck, barge, pipeline and deepwater ship transloading services. The environmental remediation and civil service construction project included soil preparation, demolishing the concrete and steel structures, clearing, grubbing, crushing concrete, beneficial reuse of of crushed concrete, and soil stabilization using RECON’s patented blend of reagents.