What Services Does Northwest Geotech Provide?

Northwest Geotech, Inc. (NGI), which also does business as Northwest Testing, Inc. (NTI), provides four service lines: geotechnical engineering, environmental services, special inspection and materials testing, and laboratory testing on soils, concrete, aggregate, and asphalt. The company was founded in 1983 and serves private and public projects across the Pacific Northwest, including municipalities, owners, contractors, developers, architects, and engineers. If your project needs subsurface engineering input, environmental assistance, third-party construction inspection, or materials lab results, these are the categories to evaluate against your scope.

Geotechnical Engineering

This is the subsurface-focused engineering service. In practice, it covers the work needed to understand how soil and rock will behave under a structure or earthwork, and to turn that understanding into design recommendations.

Typical tasks in this category include:

• Subsurface exploration and soil/rock characterization
• Foundation recommendations and design support
• Slope stability and earth retention evaluation
• Settlement and bearing capacity analysis
• Construction-phase geotechnical observation

Use this service when you are at the design stage of a building, bridge, roadway, or other structure and need engineering recommendations before finalizing foundations or grading.

Environmental Services

The environmental service line addresses environmental conditions on a site and their implications for a project. This is distinct from the geotechnical work, though the two often overlap on the same site.

Common uses include:

• Site assessment and environmental evaluation
• Support for remediation projects
• Environmental assistance to owners, contractors, and public agencies

The company's project list includes remediation work, such as the Courthouse Square Complex Remediation, which shows this service applied to real cleanup and redevelopment situations.

Special Inspection and Materials Testing

This is the construction-phase service. Special inspection means an independent party verifies that construction work and materials meet the project's approved plans and specifications — a requirement on many commercial, institutional, and public projects.

This service is relevant when:

• Your project specifications or jurisdiction require third-party special inspection
• You need construction monitoring during earthwork, concrete placement, or structural work
• An owner, contractor, or agency needs independent verification of installed work

The company was originally founded in 1983 specifically to provide construction monitoring, special inspection, and materials testing, so this is a long-standing core service rather than an add-on.

Laboratory Testing

The laboratory service supports both the design and construction phases by testing physical samples. According to the company's own description, the lab tests:

Lab results are what make field inspection and geotechnical recommendations defensible — they provide the measured data behind the field observations.

How to Decide Which Service You Need

Match your project stage and requirement to the service line:

• Design stage, need foundation or slope recommendations → Geotechnical Engineering
• Site has contamination concerns or remediation is required → Environmental Services
• Construction underway, spec or code requires independent verification → Special Inspection and Materials Testing
• Need physical test results on soil, concrete, aggregate, or asphalt → Laboratory Testing

Many projects use more than one. A single development might start with geotechnical engineering, add environmental assessment, then move into special inspection and lab testing during construction.

What the Company Says About Its Role

Northwest Geotech describes its purpose as helping clients "protect your investment," and its stated client base spans municipalities, owners, contractors, developers, architects, and engineers throughout the Pacific Northwest. Its published project list — including the Willamette River Transit Bridge, the Oregon Zoo Combined Sewer Overflow Project, Portland Community College, the Portland-Milwaukie Light Rail West Segment, and the Toyota Portland Port Facility T4 — indicates experience with public infrastructure, institutional, and industrial work.

If your project falls into those categories and is located in the Pacific Northwest, the four service lines above are the ones to ask about directly when scoping work.