Environmental Geology Services

EGS Provides environmental site assessments including Phase 1 and Phase 2 ESAs.


Environmental Consultants. Professional Geologists.

Licensed Professionals. Reliable Solutions.

Environmental Geology Services (EGS) provides Phase 1 environmental site assessments nationwide and an extensive range of other environmental consulting, environmental cleanup, and project management services in California, Oregon and Wisconsin.

Established in 1989 we have field offices located in California and Wisconsin. Our professional geologists and licensed personnel are directly involved with your project requirements.

Real Estate Due Diligence

Site Investigation and Cleanup

  • Soil and Water Sampling
  • Air and Vapor Monitoring
  • Fuel Tanks, Dry Cleaners, Contaminated Sites

Hazardous Materials

  • Wildfire Debris Cleanup Management and Sampling
  • Industrial Sites, Household Waste, Construction Sites
  • Asbestos, Lead, and Radon

Regulatory Compliance

  • Permitting, Database Management, Litigation Support
  • Health & Safety Plans, Soil and Groundwater Plans
  • Stormwater Plans, Management and Sampling

By retaining Environmental Geology Services, you will access 30 years of EXPERIENCE in our service fields, QUALITY client relationships and trust that our SOLUTIONS will achieve your project goals. Read client comments for a sample of the quality of our services and client satisfaction. Review our Mission Statement to understand our values.

We provide responsive, practical, and cost-effective solutions through many services including:

  • Phase 1 Environmental Site Assessment (Phase 1 ESA)
  • Environmental investigations (Incl Phase 2)
  • Air, soil or water sampling due to contamination
  • Hazardous materials management
  • Underground storage tanks
  • Regulatory compliance
  • Wildfire cleanup
  • Health and safety plans


Wildfire Cleanup

Should you be in need of assistance due to an emergency such as wildfire debris cleanup, wildfire soil testing or wildfire asbestos screening, EGS will be humbled that you put your trust in us at this most difficult time. Please feel free to call us to speak directly with our Principal Geologist, David L. Bush, who is a registered professional geologist in California, Oregon and Wisconsin.


At Environmental Geology Services, our purpose is to serve our client’s needs professionally, ethically, and efficiently. We strive to provide practical, cost-effective solutions that respond in a timely manner to client and regulatory requirements. Our focus is resolving our client’s needs, not quarter to quarter profits.

Our values that set the performance standard and direct the implementation of our mission:


  • Corporate and Social Responsibility
  • Excellence in Client Service
  • Honesty, Integrity, Ethics
  • Data Driven Conclusions
  • Solutions That Benefit Our Clients
  • Environmental Stewardship

Reaching out to EGS

Please do not hesitate to contact Environmental Geology Services by filling out the form on our Contact Us page. We value our client relationships and are humbled when we receive repeat business and referrals. It truly is our privilege to serve our clients and appreciate the opportunity to provide our services to you.