Building on solid ground.
From soils reports and geologic hazard studies to field inspection and laboratory testing, we help owners, architects and contractors across Southern California build with confidence.
SOCAL Geotechnical is an engineering and testing firm in Corona, California. We help owners, architects and contractors understand the ground beneath their projects, from the first boring to the final inspection.
Our licensed geotechnical engineers and engineering geologists work on residential, commercial, institutional and public projects across Los Angeles, Orange, Riverside, San Bernardino, Ventura and San Diego counties.
Services across the life of a project
Geotechnical Engineering
Subsurface investigations, soils reports and foundation recommendations for new buildings, additions, ADUs, pools and retaining walls.
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Geologic Hazards Evaluation
Slope stability, landslide, liquefaction and fault rupture evaluations for hillside and hazard-zone sites.
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Materials Testing & Inspection
Grading observation, compaction testing, foundation observation and special inspection during construction.
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Laboratory Testing
Soil and construction materials testing in our LADBS-accredited laboratory.
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Methane Testing
Methane site testing and reports for projects in City of Los Angeles methane and methane buffer zones.
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Environmental Assessment
Environmental site assessment and remediation support for transactions, redevelopment and permitting.
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LADBS-accredited testing laboratory
Accredited testing laboratoryCity of Los Angeles Department of Building and SafetyField samples come straight back to our own laboratory in Corona, so results are fast, consistent and tied directly to the engineering.
- Classification & grain size
- Moisture-density
- Direct shear strength
- Expansion index
- Consolidation
- Concrete compression
From first boring to final inspection
Investigate
We review the site, plans and geologic maps, then drill, sample and log the subsurface.
Analyze & recommend
Laboratory results and engineering analysis become clear, buildable recommendations.
Review & approve
We support plan check and respond to City and County review comments until the report is approved.
Observe & test
Our field team verifies grading, excavations and foundations during construction.
Common questions
When do I need a geotechnical (soils) report?
What areas do you serve?
Can you respond to City or County review comments?
What do you need to prepare a proposal?
Have a project in mind?
Send us the site address and a short description. We will reply with a scope of work and fee.