Contact us: 1-800-936-8228
Environmental and Geotechnical Construction Services


Industries Served

Performing remediation nationally for over 25 years, we are the leading provider of remedial construction solutions to private industry.

Environmental Remediation & Geotechnical Construction Services

ENTACT is a national provider of environmental and geotechnical construction solutions. With over $2 billion in services provided, we rank as the largest provider to private industry in the United States. Our clients value our focus, creativity, and resourcefulness. Because we self-implement, we are able to offer efficient, accurate, and timely solutions. ENTACT combines the knowledge and expertise of a local firm with the stability and resources of a national firm.

ENTACT possesses expert in-house personnel and state-of-the art equipment to perform our projects. Our in-house personnel include project managers, field engineers, health and safety officers, superintendents, equipment operators, and technicians. We have a large fleet of standard heavy equipment; specialty soil mixing, stabilization rigs, and attachments; and dewatering, slurry wall, and sheet pile installation equipment.

In addition, ENTACT has an in-house treatability laboratory dedicated to enhancing our waste treatment and solidification/stabilization efforts. Our projects often integrate several scope components and include a variety of media including soil, sediment, and groundwater. ENTACT’s field services adhere to fully-integrated project management, scheduling, quality assurance, and safety programs.

Our Services

Our field and technical capabilities enable us to create and deliver innovative solutions to many environmental and geotechnical construction challenges.

Environmental Remediation

Environmental Remediation

  • Excavation
  • Stormwater Management & Erosion and Sediment Controls
  • Earth Retention
  • Dewatering and Water Treatment
  • Demolition
  • Cap & Containment
  • Sediment Removal & Wetland Restoration
Geotechnical Construction

Geotechnical Construction

  • Ground Stabilization / Settlement & Liquefaction Mitigation
  • Earth Retention / Structural Support
  • Coal Ash Impoundment & Landfill Closure
  • Environmental Remediation Applications
  • Ground Improvement for Construction
  • Barrier Walls
  • Sheet Pile Installation
Soil Mixing

Soil Mixing

  • In-situ Solidification / Stabilization
  • Chemical Fixation
  • Chemical Oxidation
  • Chemical Reduction
  • Bioremediation
  • Wet Soil Conditioning
  • Permeable Reactive Barriers
Coal Ash Impoundment & Landfill Closure

Coal Ash Impoundment & Landfill Closure

  • Dewatering and Water Treatment
  • Ash Management
  • Wet Ash Conditioning
  • Landfill Construction
LNG – Ground Improvement

LNG – Ground Improvement

  • Deep Soil Auger Mixing
  • Shallow Excavator Mixing – Mass Solidification
  • Wet & Dry Soil Mixing
  • Soilcrete Columns
  • Soil-Cement Columns for Tank Pad Support
  • Overlapping Columns
  • In-Situ Gravity Retaining Walls