Integrity Inspection Group
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Inspect. Protect. Thrive.

Third-party inspection and integrity services for natural gas pipeline systems — built on defensible documentation, field-proven inspectors, and code you can point to.

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Inspect. · Protect. · Thrive. · Inspect. · Protect. · Thrive. · Inspect. · Protect. · Thrive. ·
49 CFR 192 · ASME B31.8 · ASTM E709 · API 1163 · AMPP SP0169 · 49 CFR 195 · ASME B31.4 · ASTM E797 · ASME SEC V · 49 CFR 192 · ASME B31.8 · ASTM E709 · API 1163 · AMPP SP0169 ·

Complete
inspection
solutions

We deliver reliable, high-quality inspection services with a commitment to safety, accuracy, and integrity on every project — from wellhead to end user.

Third-party inspection · Integrity services · Construction oversight

Natural gas
gathering lines

We inspect natural gas gathering systems to ensure safe, efficient, and regulation-compliant operation from wellhead to processing. Our staff brings deep knowledge of DOT and Texas Railroad Commission rules, landowner and right-of-way relations, and field ‘as-built’ documentation with GPS references.

Gathering systems

Natural gas
distribution

A leading provider of third-party inspection for natural gas distribution projects, with extensive experience across new development construction and demanding replacement work. Our inspectors manage the complexity of distribution systems while holding every phase to safety and quality standards.

Distribution inspection

Transmission
& plant
construction

Our gas inspection program covers transmission, distribution, and storage systems. Inspectors perform vital quality assurance on new construction and rehabilitation, meeting the requirements of the U.S. Department of Transportation Pipeline and Hazardous Materials Safety Administration and state regulatory agencies.

Transmission scope

Integrity digs
& NDT

Complete integrity dig support with integrated NDT, dimensional verification, and code-compliant documentation — magnetic particle, ultrasonic thickness, shear wave, and phased array, backed by Creaform 3D scanning for dent geometry and sleeve fit-up.

Full NDT capability
0 Pipeline classes inspectedGathering, distribution, transmission
0 NDT methods in houseMT · UTT · UTSW · PAUT
0 Governing codes appliedFederal, ASME, ASTM, API, AMPP
0 Dig verification checkpointsPre-dig review through backfill

Safety is
just a click
away

Tell us about the system, the scope, and the schedule. We will put the right inspector on it.

Schedule a service

Beyond the trench

Auditing

Compliance audits with a paper trail

We perform detailed audits to assess compliance with OSHA, DOT, and other regulatory requirements, identifying areas for improvement. Our experienced auditors specialize in reviewing and auditing documentation tailored to the unique needs of each client.

Analytics

Field data turned into decisions

Construction projects are dynamic and often influenced by multiple factors. The information collected by our field inspectors reflects their expertise and in-depth understanding of each project, and our analytics team transforms it into actionable insight.

Training

Customized training & certification

Training sessions and certification programs for pipeline construction and inspection personnel, including hands-on instruction in current safety standards, continuing education on regulatory change, and certification that aligns with industry requirements and employer expectations.

Locusview

Digital construction management

By utilizing Locusview’s construction management software, IIG improves operational efficiency and data management — enabling faster work order delivery, accurate data, and protected timelines and margins. The result is better confidence, planning, and collaboration for all clients.

Crew fusing a natural gas gathering line in the field
Gathering line fusion — field inspection
Night excavation and shoring over an exposed distribution main
Distribution main — night excavation

Straight answers

What is a gas line inspection and why is it important?

A gas line inspection evaluates the condition, safety, and compliance of natural gas pipelines. It is critical for preventing leaks, ensuring regulatory compliance, and maintaining the integrity of energy infrastructure.

How often should gas lines be inspected?

Inspection frequency depends on federal, state, and operator-specific regulations. Routine inspections typically occur annually or as required by safety codes and project scope.

What types of pipelines do you inspect?

We inspect transmission, distribution, and gathering pipelines, ensuring safety and compliance from the source to end users.

What qualifications do your inspectors have?

Our inspectors are certified, operator-qualified (OQ), and experienced in DOT and PHMSA regulations, with extensive field knowledge in both new construction and existing system evaluations.

Do you provide documentation and reporting?

Yes. We provide detailed inspection reports, compliance documentation, GPS mapping where needed, and real-time project updates to clients.

What happens if an issue is found during inspection?

If we identify a safety or compliance issue, we immediately document the problem, notify the client, and recommend corrective actions to address it swiftly and effectively.

Can you assist with new construction projects?

Absolutely. We offer inspection services throughout the construction process, ensuring all work meets industry standards and regulations from start to finish.

Do you inspect pipelines in residential or commercial areas?

Both. Our team is equipped to inspect pipelines in a variety of settings, including urban, rural, residential, commercial, and industrial environments.

Start a
conversation

Send us the scope and we will respond with the crew, the codes, and the schedule.

Email
Ashley.b@integrityingroup.com
Telephone
+1 (214) 908-5329

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