Locations
Geo-Technology Associates, Inc., Washington D.C
Based in Washington, DC, our office has proudly served the DMV area since 2024, providing environmental consulting, geotechnical engineering and consulting, and construction observation and testing services tailored to the DMV’s unique landscape.

Our Services

Geotechnical Services
- Geotechnical Feasibility Studies as part of geotechnical site investigation
- Subsurface exploration and soil investigation
- Shallow and Deep Foundation Analysis and Design for apartment building, high rise building, and parking lot developments
- Retaining Wall Design/Recommendations
- Slope stability analysis and design
- Ground Improvement Design/Recommendations, including soil stabilization
- Dewatering Permits
- Subsidence Mitigation and sinkhole remediation
- Karst Geology Analysis
- Groundwater Control Design for high water table conditions
- Geotechnical Instrumentation and Monitoring
- Geotechnical Laboratory Testing, including soil testing

Construction Observation and Materials Testing
- Site work – Structural Fill Testing, Subgrade Soil, Utility Backfill Operations, and soil stabilization
- Retaining Wall Inspection, Testing and Certifications
- Asphalt Inspections and evaluation of pavement damage
- Demucking Inspections for soft soil conditions
- Firestop and Fire Penetrations (firestopping inspection)
- Foundations – Soil Bearing Capacity of Footings (foundation inspection)
- Laboratory Services, including soil lab testing
- Concrete Sampling, Slump Test (concrete inspection, compressive strength testing)
- Threshold Inspections with certified special inspectors
- Field-welded and Bolted Structures (structural steel inspection, bolting)

Environmental Services
- Phase I and II environmental site assessments (phase 1 environmental site assessment, phase 2 environmental site assessment)
- Site-Specific Risk Assessments
- Soil site investigation and subsurface exploration
- Contaminated soil remediation and groundwater monitoring
- Brownfield redevelopment
- Consumptive Use Permits
- Dewatering Permits
- Spill, Prevention, Control, and Countermeasures (SPCC) Plans
- Spill/Release Emergency/Interim Source Removal
- Soils Management Plans
- Underground Storage Tank (UST) Removal and Closure Sampling, including underground storage tank removal
- Industrial Discharge Monitoring
- Stormwater Pollution Prevention Plans (SWPPP) and stormwater monitoring & NPDES inspections
- Environmental impact studies and support from experienced environmental consulting firms

Natural Resources Services
- Wetland delineation and wetland permitting
- Wetland mitigation design and monitoring
- Threatened and Endangered Species Surveys, Assessment, and Permitting, including endangered species and rare species surveys
- Biological and Ecological Assessments / environmental impact studies
- Tree Survey and Condition Assessments, including tree survey, tree inventory, and tree condition assessment (ISA Certified Arborist On Staff)
- Wetland Restoration and Enhancement, including wetland mitigation and restoration and stream mitigation

GTA provided environmental due diligence, permitting support, environmental management, geotechnical engineering, and construction observation/testing for multiple townhome developments within The Parks at Walter Reed and the former Boystown campus.
Featured Projects
Our Team
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With more than 600 engineers, geologists, scientists, technicians, and support personnel, GTA has the expertise, resources, and experience to meet your needs. Reach out to us today.

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