The wide range of interrelated services offered by Duffield Associates includes the testing, review, CQA consulting, and construction administration services provided by our Construction Review group. By working collaboratively with our engineers and scientists, and our clients' staff, our field representatives and residents ensure a high caliber of review on every project we undertake. As part of our commitment to excellence, we provide regular in-house technical training and updating for our construction staff. Many of our field representatives hold certifications by ACI, NICET, GGI, and CPSEC and our technicians participate in Process Safety Management training.

Services provided include:

• Quality Assurance/Quality Control Review and Testing
  - Subgrade Conditions
  - Fill Placement
  - Reinforcing Steel
  - Reinforce Concrete
  - Floor Flatness/Levelness
  - Structural Masonry
  - Structural Steel
  - Spray-Applied Fireproofing
  - Pavement Construction
  - Deep Foundation
  - Geosynthetic Lining and Retaining Structures
  
  
• Certified Construction Reviewer (CCR)
• Certified CQA Geosynthetic Materials & Compacted Clay Liner (GCI)
• Resident Project Representative (RPR)
• Specialized Construction Administration
• AASHTO and USACE Certified Laboratory Testing
• Geosynthetic Laboratory Testing

We also offer expertise with the following LEED (Green Building Rating System) credits:

• Materials Reuse and Recycled Content - maximize use of recycled materials (e.g. fly ash, recycled concrete) and promote recycling rather than disposal
• Construction Waste Management - plan, review, manage (separation) and assist with channeling construction waste
• Construction Materials Documentation associated with the submission for LEED Credits