GeoConcepts, Inc.

Surface and subsurface geotechnical and geologic explorations using surface mapping, drilled borings (hollow stem, mud rotary, large diameter bucket auger), backhoe excavations, and test pits. Explorations map adverse conditions such as faults and landslides and obtain samples for laboratory testing.

Geologic reports used by building officials, architects, and engineers to determine appropriate structure locations, foundation types, and private sewage disposal systems. Reports include site condition descriptions, geologic data, seismicity discussion, and mitigation recommendations for conditions such as faults and landslides.

Soils engineering reports for the design of foundations, structures, and private sewage disposal systems. Reports provide site exploration data, laboratory testing results, site preparation recommendations, and analyses addressing liquefaction, lateral spreading, and mitigation.

Evaluation of geotechnical and geologic conditions for hillside properties.

• Stability Analyses Of Existing Slopes
• Proposed Cut Slopes
• Fill Slopes
• Temporary Excavations

Site evaluation for liquefaction potential.

• Settlement
• Lateral Spreading
• Resulting Effects On Proposed Development
• With Recommendations For Mitigation

In-house soil and rock laboratory testing at a City of Los Angeles approved facility. Physical tests include moisture content, density, direct shear, consolidation, expansion index, grain size analysis, specific gravity, and Atterberg limits. Chemical tests include pH, resistivity, chloride content, and sulfate content, performed to the latest ASTM, CTM, or applicable standards.

Seismic evaluations for projects in fault zones.

• Logging Of Seismic Trenches By A Licensed Geologist To Assess The Presence
• Activity
• Damage Potential Of Mapped And Unmapped Faults

Percolation testing for the location and design of onsite wastewater treatment systems.

• Seepage Pits
• Leach Lines
• Pressurized Drip Systems
• Evaluated For Hillside And Flatland Feasibility And Stability

Grading control and density testing (sand cone and nuclear gauge) by ICC Soils Special Inspectors and LADBS Deputy Grading Inspectors for projects ranging from small residential additions to large tract grading operations. Field services include construction observations for footings, friction piles, caissons, keyways, temporary excavations, and shoring.