Rough Grading

Rough Grading

LGC Geo-Environmental Inc. is a full-service geotechnical, environmental and construction materials testing and inspection firm, designed to assist you in all your development needs. Logical Geotechnical Consultants provides a complete range of geotechnical services to support your future development requirements. Specific phases of geotechnical work tasks LGC provides include, but are not limited to the following:

Down Hole Logging

Down Hole Logging

  • Preliminary Geotechnical Investigations 

  • Grading Plan Reviews

  • Field Observation and Testing During Rough Grading

  • Field Observation and Testing of Utility Line Backfill During Post Grading Operations

  • Structural Pavement Design

  • Street Subgrade and Base Testing

  • Pile and Caisson Design

  • Review, Sign and Stamp Grading Plans

  • Fault Investigations

  • Liquefaction Investigations

  • Slope Stability

  • Seismic Refraction Surveys to Evaluate Rippability

Footing Inspections

Footing Inspections

Rough Grading and Slope Stability

Rough Grading and Slope Stability

Hollow Stem Drilling

Hollow Stem Drilling

Fault Trenching

Fault Trenching

Infiltration Testing

Infiltration Testing

LGC’s capabilities include our state-of-the-art soils and materials laboratory to provide accurate engineering properties of soil types for detailed engineering analysis. LGC’s laboratory is certified by the City of Los Angeles for correct analysis, current methodologies and proper results.  We perform a wide variety of tests to determine the engineering properties of various soil types and strength testing of steel, concrete, reinforcing bars and other construction materials. Please contact us for a complete description of all our consulting and testing capabilities.


Transmission Fluid Spill

Transmission Fluid Spill

LGC Geo-Environmental Inc. will provide you with a full range of environmental consultant services on your projects. Many projects begin with Phase I ESAs, continue to Phase II ESAs and end with successful Remedial Actions. We have provided an extensive list of our environmental services below.

For projects involving regulatory agencies, LGC is results-oriented and committed to obtaining NFA letters and/or Site Closures after successful completion of your project. We will prepare Workplans to assist you with obtaining permits and approvals to proceed from regulatory agencies.

LGC’s environmental services on your projects include, but are not limited to the following:

Well Drilling

Well Drilling

  • Phase I and II Environmental Site Assessments

  • Preliminary Environmental Assessments

  • Removal Action or Remedial Action Workplans, Planning and Oversight

  • Removal Action or Remedial Action Closure Reports

  • UST Removal Oversight and Closure Reports

  • UIC Well Closure Oversight and Closure Reports

  • Workplans for All Types of Projects

  • Permit Applications and Assistance

  • Regulatory Agency Closure Assistance and Negotiation

  • Other Environmental Services as Requested

Soil Contamination

Soil Contamination

Underground Fuel Tank Removal

Underground Fuel Tank Removal

Underground Tank Removal

Underground Tank Removal


We will provide you with status updates at key points in your project and will promptly respond to your requests for information in- progress via telephone and email. We will work diligently to complete your projects on-time and within budget, including accommodating changed conditions whenever possible. If the changed conditions require modifying the budget and/or schedule, then we will promptly provide you with a change order and await your approval before proceeding. We emphasize a goal-oriented and solution-oriented approach that results in successfully-completed projects, site closures, and regulatory agency approvals.

LGC sincerely appreciates this opportunity to introduce ourselves to you. We look forward to showing you our commitment to value-engineering and solution-oriented consulting on your next project. We firmly believe our geotechnical and environmental experience, budget-conscious approach, dedication to our clients and professional integrity will cultivate a long-lasting professional relationship with you for many years to come.