Subsurface Utility Engineering

RETTEW’s Subsurface Utility Engineering group provides utility locating services to a variety of clients including upstream and midstream natural gas companies; private and municipal utilities; and industrial, commercial development, and institutional clients. We are committed to providing cost-effective and highly responsive services to protect our clients’ critical infrastructure. Our subsurface utility engineering specialists are trained to assess risk and locate thousands of utilities each year using cutting edge technology and equipment, while adhering to strict health and safety standards.

RETTEW tailors the degree of utility locating support to the needs of each individual client. Our support includes one-time complex locates at centralized facilities, commercial and industrial sites, short-term pipeline construction projects, and long-term management of 811 “Call Before You Dig” clearance programs for utilities, oilfield assets, and transmission pipelines.

Subsurface Utility Engineering specialties include:

Private Locates and Utility Investigations

  • Subsurface Utility Engineering (SUE): Quality Levels A, B, C, and D
  •  Hydro Excavating/Daylighting
  •  Interior Locating (walls/foundations)
  •  Rooftop Locating
  •  GIS Mapping
  •  Non-Metallic Line Locating
  •  Sewer Laterals
  •  Water, Electric, and Gas Services Beyond Meter
  •  Irrigation Systems
  •  Lot Lights and Invisible Fences
  •  Product Lines
  •  Underground Storage Tanks
  •  Post-Tension Cables and Rebar

Oil and Gas Industry

  • 811 Ticket Management/Field Response
  • GIS Mapping
  • Damage Investigation
  • As-Built Surveys
  • Emergency Response
  • Complex/Specialty Locates
  • M Scoping/Ground Penetrating Radar
 Training and Certifications:
  • OSHA Annual 8-Hour HAZWOPER Refresher
  • OSHA 10-Hour Construction
  • Defensive Driver Training
  • SafeLandUSA


Certified Veriforce Evaluators and Trainers in-house

Safety Training

RETTEW offers more than 70 safety trainings on an ongoing basis – click here to glance at our calendar!