Locations
Geo-Technology Associates, Inc., Philadelphia, PA
Philadelphia sites require careful planning around existing structures and constrained footprints. GTA provides subsurface investigation, foundation repair insight, and environmental consulting for urban construction.
Phone: 215-402-7299
Our Services
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
- 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
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
GTA provided Construction Observation and Materials Testing (CoMET) and Special Inspection services for a 282,255-square-foot industrial warehouse at 3060 South 61st Street in Philadelphia from December 2024 through June 2025. Services included footing subgrade evaluations using DCP testing and probing, along with inspections of reinforcing steel, concrete, masonry, and structural steel. GTA also monitored slab and foundation preparation and performed site work observation such as grading, soil evaluation, structural fill testing, utility backfill verification, and asphalt and concrete sampling. Throughout the project, GTA’s team delivered testing, documentation, and oversight to help ensure construction generally conformed to project plans, specifications, and approved submittals.
Featured Projects
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3060 South 61st Street, Phila., PA.
Phila., PA.
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Germantown Academy, Fort Washington, PA
Fort Washington, PA
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109-111 Pine Street, Phila., PA.
Phila., PA.
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Piazza Alta – Phase 2 (Buildings B & G), Philadelphia, PA
Philadelphia, PA
Memberships & Associations
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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