Opal Group Inc.

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Water Treatment

Opal's geologists and engineers develop and implement water monitoring programs in complex settings to define and characterize hydrogeologic regimes. The ground water models are limited to specific analytes to most appropriately illustrate migration and to develop cost-effective water restoration plans. Ground and surface water restoration may involve active water extraction and treatment using a variety of equipment trains, or may incorporate passive systems such as slurry trench barrier walls or interception trenches.

Water Treatment Projects

GE Superfund Site- Albuquerque, NM Preparation and implementation of all work plans Investigation and characterization of the site and ground water system A full-scale groundwater extraction test on a deep aquifer unit to validate key design assumptions Installation of extensive monitoring, extraction and injection wells for both shallow and deep aquifers Design and construction of a large groundwater extraction and treatment system for both shallow and deep groundwater aquifers that treats up to 1.8 million gallons of water per day Full Description /All Projects

Potable Water Service Installation- Dodge City, KS Design and installation of a 7,500-ft long 3-inch diameter High Density Polyethylene (HDPE) SDR 11 water line to supply potable water to residences Deep directional drilling and installation of 366 feet of six-inch-diameter (6-in) epoxy-coated protective steel casing where the line crossed beneath a railroad right-of-way Flushing, pressure-testing and chlorine disinfection of the line before putting it in service Full Description / All Projects

Sullivan's Ledge Superfund Site- New Bedford, MA Preparation of remedial action work plans for each phase of work Excavation of soils impacted by PCBs, VOCs and metals from an adjacent stream and tributary, stabilization and on-site consolidation of excavated sediments Construction of a 60-gpm groundwater extraction and UV/Oxidation treatment system Installation of a 400-foot of soil/bentonite slurry wall to a maximum depth of 75 feet Full Description / All Projects