Tetra Tech provides various planning, permitting, compliance, design, and construction services to the oil and gas industry. With a strong commitment to safety and environmental stewardship, Tetra Tech works closely with clients to identify and implement cost-effective engineering and environmental solutions.

We support oil and gas exploration and production; gathering pipelines; transmission pipelines; compressor and pumping stations; processing facilities; refineries; above and below ground storage facilities; and rail, truck, and marine terminal import and export facilities.

Consulting and Studies

  • Siting and routing studies
  • Due diligence
  • Regulatory evaluations
  • Baseline field surveys
  • Permitting strategies
  • FEED-level cost estimates
  • Stakeholder engagement programs

Environmental Management

  • Biological resource surveys
  • Cultural resource surveys
  • Environmental permitting
  • Air and noise modeling
  • Greenhouse gas modeling and permitting
  • Mitigation planning
  • Groundwater and soil monitoring
  • Water treatment
  • Tailings and process water management
  • Emergency response
  • Site closure management and monitoring
  • Legacy site assessment and remediation
  • Environmental impact studies
  • Comprehensive water management
  • Pipeline routing
  • Well site permitting, siting, and designing


  • Geotechnical
  • Civil/structural
  • Mechanical
  • Process
  • Instrumentation and controls
  • Electrical
  • 3D design
  • Materials testing
  • Water/wastewater design
  • Coastal and waterways engineering, including dredging support


  • Construction management
  • Program/project oversight
  • Constructability reviews
  • Field engineering
  • Estimating
  • Procurement
  • Project controls
  • Quality and inspection services
  • Environmental compliance training
  • Environmental inspection programs

Operations and Maintenance

  • Compliance
  • Permitting
  • Process safety management
  • Risk-based inspection program
  • Waste management
  • Auditing and management systems

    Related Projects

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    Providing oil and contaminant fate and behavior modeling used extensively for regulatory approvals and spill response planning

    California Pacific Pipeline

    Designing and Permitting an Oil Pipeline Through Complex Terrain

    Navigating diverse terrain to design California’s Pacific Pipeline System

    Emergency Oil Spill Response

    Emergency Oil Spill Response in the Chaudière River, Quebec

    Responding to a major oil spill in Québec

    Alaska Pipeline Project, Geotechnical and Engineering Services, Canadian Pipeline Section

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    Provided Arctic engineering services through the development stage of the Yukon portion of the Alaska Pipeline project

    Fransen OGD Vapor Recovery

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    Replacing existing corroded piping and pipe supports in less than four weeks