Environmental Services/Construction Services

SEI has conducted numerous Phase 1 Environmental Site Assessments (ESA’s) per ASTM Standard 1527-13, Preliminary Environmental Assessments (PEA’s) for over 20 school sites per DTSC requirements, subsurface investigations (Geotechnical, Geologic and Environmental), soil and groundwater remediation, installation of soil borings and monitoring wells, and mitigation of geological and environmental issues. Our state-registered geologist, registered environmental property assessor (REPA) and certified engineering geologists are experienced in a wide variety of subsurface investigatory methods such as soil gas sampling, groundwater and vadose zone monitoring well installation, and shallow groundwater probe sampling. They also employ subsurface contaminant fate and transport models where appropriate to support investigations and risk assessments. SEI’s geologists are experienced in aquifer testing and groundwater modeling using the latest software applications. Our staff is experienced in soil and groundwater remediation technologies including; excavation and disposal of impacted soil, soil vapor extraction (SVE), bioremediation of soil and groundwater, combination airsparging and SVE, pump and treatment of groundwater. SEI’s QSD/QSP’s also prepare Storm Water Pollution Prevention Plans (SWPPP) and Spill Prevention Control & Countermeasure (SPCC) Plans.

SEI’s Environmental/Construction Department is experienced in cleaning out and rebuilding sumps, UST removals, AST installations, SWPPP implementation and restoration projects, and the removal and disposal of structures at private, public, and industrial, facilities. This has included the removal of sludge from the bottom of sumps, replacement of non-draining material, the removal and disposal of asbestos containing materials (ACMs), lead-based paint contaminated soil and general rubbish and vegetation at small residential and commercial facilities. Our construction managers are experienced in obtaining demolition permits, satisfying the local Air Pollution Control District (APCD) requirements, and general safety practices to complete the projects quickly and cost-effectively.

List of Soils Engineering Inc. Environmental & Construction Services:
Environmental Services

Phase 1 Environmental Site Assessments

Phase II Environmental Site Assessments & Preliminary Environmental Assessments (PEAs)

  • Soil sampling
  • Water sampling
  • Chemical analysis of samples
  • Soil vapor sampling and analysis
  • Asbestos and lead-based paint sampling and analysis
  • Monitoring well installations and sampling (quarterly etc.)

Contaminant Risk and Hazard Assessments

Spill Prevention Control & Countermeasure Plans (SPCC)

Remedial Activities

  • Preparation of Workplans (RAW) and Reports
  • Soil removal and disposal (hazardous and non-hazardous)
  • Groundwater treatment
  • Soil vapor extraction, design, installation and operation
  • Vapor intrusion mitigation
  • Bioventing and Bioremediation
  • Air sparging
  • Other remedial activities
  • Preparation of Stormwater Pollution Prevention Plans (SWPPP)
Demolition/Construction Activities
  • Removal and disposal of structures
  • Removal and disposal of foundation pads, footings, and debris
  • Septic tank abandonment
  • Rough grading of properties
  • Drainage Sump cleanouts and revitalizations
  • Gas line installations
  • UST removals and closure activities
  • AST installations
  • Shoring
  • SWPPP BMP Installations and Restoration
Geological Services
  • Geologic hazard studies
  • Fault investigations
  • Geophysical investigations
  • Seismic evaluations
  • Landslide investigations
  • Pipeline Risk Evaluations
  • Dairy site evaluations
Drilling Services
  • Geotechnical & Environmental Borings for sample collection
  • Installation of monitoring wells
  • Installation of vapor extraction wells
  • Abandonment of monitoring wells and water wells
  • Installation of inclinometer wells
  • Waste depth assessments and cap assessments at landfills

As structural engineers, we pride ourselves on a job well-done and we stop at nothing to make certain your job is running on time, efficiently and to the highest imaginable standard.