Environmental Consulting

Valuable Insight at Your Service

30 Years of Experience

As a consultant, CDG draws on three decades of hands-on project management experience. In that time, CDG has earned a reputation for excellence responding to a variety of environmental concerns for a wide range of clients, including oil jobbers, municipalities, utility companies, manufacturing facilities and financial institutions.

Powerful Connections

Throughout our history, CDG has established and maintained lasting relationships with clients and key industry players. Our clients especially benefit from the valuable and ongoing partnerships we maintain with state and federal regulators.

In-house Services

CDG brings you the distinct advantage of support from our own in-house drilling and laboratory services, allowing us to streamline the process to better meet your schedule and expectations.


  • Subsurface soil and groundwater quality assessment
  • Wetland delineation survey, permitting and mitigation
  • Regulatory inspections, compliance and reporting
  • Spill prevention control and countermeasures compliance services
  • Petroleum storage system design
  • Tank inspections, compliance and reporting
  • Environmental site assessments and audits
  • UST closure assessments
  • Risk-based evaluations
  • Asbestos inspection and reporting
  • In-house drilling services auger
    • Auger
    • Air rotary/hammer
    • Direct push technology
  • In-house laboratory services
  • Air permitting