Services
Geotechnical Construction
For over 27 years, ENTACT has been committed to the successful creation and implementation of environmental and geotechnical construction solutions. Working with a variety of clients, from industrial to commercial to governmental, we provide the geotechnical expertise to address subsurface scopes. Our industry-leading personnel has the proven experience to complete the most challenging projects, providing a full suite of solutions to expertly manage every detail from start to finish.
Ground Stabilization / Settlement & Liquefaction Mitigation
- Shallow Soil Mixing – Mass Solidification
- Deep Soil Mixing
- Wet & Dry Soil Mixing
- Soil-Cement Columns
- Overlapping Columns
- In-Situ Gravity Retaining Walls
- Shallow Excavator Mixing
- Hydraulic cut-off walls
Barrier Walls (Cut-Off Walls)
- Soil–Mixed
- Soil-Bentonite
- Cement-Bentonite
- Soil-Cement-Bentonite
- Slag Cement—Portland Cement-Bentonite
Earth Retention / Structural Support
- Steel, Vinyl, & HDPE Sheet Pile Walls
- Benching & Sloping
- Trench Box & Slide Rail Systems
- Anchors & Tiebacks
- Soldier Piles & Lagging
- Self-Hardening Slurry Walls
- Auger Cast Piling
- Wet Soil Mixing
- Cement/Slurry Grouting
Slurry Wall Construction
ENTACT has constructed several million square feet of slurry wall for various applications utilizing seasoned field crews and company owned specialty equipment including long reach excavators, extended sticks and booms, slurry mix tanks, silos and pumps. We have experience with slurry wall construction using a variety of materials including native and imported soil, bentonite, cement, slag, and polymers, in various combinations. Our experienced specialty equipment operators and field engineers, supported by our in-house treatability and geotechnical lab, consistently deliver a quality product meeting project requirements and quality control objectives.
Excavation Support Systems
ENTACT work often occurs at depths or locations that require installation of various support systems to ensure the integrity and stabilization of the work area or surrounding structures. We utilize and self-perform benching/sloping, trench boxes, slide rail shoring, and sheet pile installations to allow our work to proceed. When there is a civil construction element that ENTACT cannot self-perform directly we subcontract specialty expertise.
All Services
Geotechnical Construction
For over 27 years, ENTACT has been committed to the successful creation and implementation of environmental and geotechnical construction solutions. Working with a variety of clients, from industrial to commercial to governmental, we provide the geotechnical expertise to address subsurface scopes. Our industry-leading personnel has the proven experience to complete the most challenging projects, providing a full suite of solutions to expertly manage every detail from start to finish.
- Ground Stabilization/Settlement & Liquefaction Mitigation
- Earth Retention/Structural Support
- Barrier Walls
- Slurry Wall Construction
All Services
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Environmental Remediation
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Geotechnical Construction
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Soil Mixing & Treatment
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Coal Ash Impoundment & Landfill Closure
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Ground Improvement
Environmental Remediation
ENTACT is truly unique in our industry. We are a direct self-performer of environmental remediation services that also possesses significant internal professional resources in the geosciences, regulatory compliance, and civil engineering disciplines. These resources are dedicated to the enhancement of our field services implementation, and to the application of innovative technologies. This translates to safe, high-quality, and cost-effective work for our clients.
- Excavation
- Cap & Containment
- Dewatering & Water Treatment
- Decommissioning, Decontamination & Demolition
- Sediment Removal & Wetland Restoration
- Manufactured Gas Plant (MGP) Site Remediation
- Pipeline Abandonment & Removal
- Coal Ash Impoundment & Landfill Closure
- Mine Reclamation & Remediation
- Residential Remediation
- Permeable Reactive Barriers
- Stormwater Management & Erosion and Sediment Controls
Geotechnical Construction
For over 27 years, ENTACT has been committed to the successful creation and implementation of environmental and geotechnical construction solutions. Working with a variety of clients, from industrial to commercial to governmental, we provide the geotechnical expertise to address subsurface scopes. Our industry-leading personnel has the proven experience to complete the most challenging projects, providing a full suite of solutions to expertly manage every detail from start to finish.
- Ground Stabilization/Settlement & Liquefaction Mitigation
- Earth Retention/Structural Support
- Barrier Walls
- Slurry Wall Construction
Soil Mixing & Treatment
ENTACT has been an industry leader in soil mixing solutions for over 27 years, treating and/or improving the strength properties of millions of tons of clean as well as impacted material utilizing various soil mixing techniques. To support our soil mixing efforts, ENTACT operates an in-house bench scale laboratory capable of performing treatability/geotechnical studies for impacted and non-impacted media. This valuable resource enables us to control costs and more importantly, control the quality of the study. In addition, we have many proprietary reagents for various treatment scenarios, possess our own specialized soil mixing equipment, and employ some of the most experienced professionals in the industry.
- In-Situ Solidification/Stabilization (ISS)
- Ex-Situ Treatment
- Chemical Fixation
- Chemical Oxidation
- Chemical Reduction
- Bioremediation
- Wet Soil Conditioning
Coal Ash Impoundment & Landfill Closure
ENTACT’s unique skill sets, specialized equipment, and experienced personnel are ideally suited to assist our clients with safe and cost-effective disposition of their Coal Combustion Residuals. Our 27 years of hands-on experience in environmental remediation, including constructing composite liner systems and handling impounded and landfilled residuals, has resulted in superior material handling, solids management, and storm and groundwater management skills. Additionally, our geotechnical construction capabilities allow us to address dam safety, slope stability and seepage control issues with company owned equipment and seasoned operators.
- Dewatering and Water Treatment
- Ash Management
- Wet Ash Conditioning
- Landfill Construction
Ground Improvement
Ground improvement is often needed to increase bearing capacity, reduce settlement, retard seepage, increase stability of slopes, and mitigate liquefaction potential. ENTACT is an industry leader in using various technologies to improve, treat, and reinforce existing ground conditions for environmental and civil applications. We specialize in serving clients with new and expanding plants and facilities, and the development of Liquefied Natural Gas (LNG) facilities. ENTACT is capable of self-performing this work– providing a reliability and accountability that clients count on for cost and schedule control. We have the resources needed to conduct our own soil mix designs and treatability studies, we own the specialized equipment needed to implement the solution, and we employ some of the most experienced personnel in the industry.
- Deep Soil Auger Mixing
- Shallow Excavator Mixing – Mass Solidification
- Wet & Dry Soil Mixing
- Soilcrete Columns
- Soil Improvement Services to Support Tank Pad Construction and Tank Farm Expansion
- Ground Improvement for Plant Expansion
- Ground Improvement for LNG Construction
- Overlapping Columns
- In-Situ Gravity Retaining Walls