Tank Inspections

InServe Mechanical Integrity Group meets customer requirements not only by providing Inspection Services in accordance with applicable codes, standards, and specifications, but also by designing customized solutions for your inspection needs. Our qualified, equipped and engaged experts know that exceptional customer service centers on carefully listening and attending to each individual customer needs. We strive to deliver quality testing and inspections in a timely manner with clear and accurate data.

Speak With Our Experts

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The goal of RBI is to optimize inspection-related activities for equipment using updated technologies, sound inspection strategies and RBI software capabilities.


Clients contact InServe for NDT/NDE services because the methods we use help accomplish their goals.


Our advanced NDE Inspectors and Technicians are certified in their respective methods to the highest industry standards such as API QUTE & QUSA.


The goal of RBI is to optimize inspection-related activities for equipment using updated technologies, sound inspection strategies and RBI software capabilities.


API 653 applies to above ground storage tanks that stand 50 feet tall or more, and have a diameter of 30 feet or greater. The standard regulates how those tanks should be maintained, inspected, repaired, or altered.


The STI SP001 standard contains inspection and evaluation criteria for shop-built and small field-erected tanks not governed by API 653 codes, but require regular inspection and maintenance to remain compliant.

Engineering & Consulting

Our experts are so effective because their background and certifications have provided them with an extensive overview of the entire engineering and production process.


InServe Mechanical provides full-service Storage Tank inspection services as required by API-653, STI SP001, & NAPA including Traditional and Advanced methods of Non-Destructive Testing/Examination (NDT/NDE).


Our experts’ extensive experience in innovative access solutions are ready to adapt to any condition to provide safe inspections/work at your facility and optimize your expenses.

The Source For Innovative, Unified Solutions

We have a solution. We use state-of-the-art technology and proven screening methodologies to reduce costly craft support. In many cases, we can provide inspection services without the need to take your plant offline and can often complete inspections within hours instead of days. With our unrivaled spectrum of nondestructive testing and examination methods, you can be sure that you’re getting the highest quality, most reliable and most cost-effective inspection services possible. Here at InServe we value our customers, it’s our hope that you will give us the opportunity to serve you and see just how different we are.

Call For a Quote

(337) 764-9000

Client Testimonials

“I highly recommend InServe Mechanical Integrity Group for tank inspections. They do a great job, they’re fast, reliable, very safe, and well trained.”

Matthew Martin

“I have personally worked for Inserve several times over the past year. Every time, Inserve has provided the employees including myself with the needed tools and information to make the job run smoothly and effectively. I highly recommend Inserve to provide you top quality inspection work performed in an efficient and timely fashion.”

Brock Bujard

“I was in need of having some above ground tanks inspected for our SPCC plan and after days of searching for companies that do the type of inspection I needed, I found a few companies. I reached out to those companies to begin getting quotes. InServe was one of the companies and InServe was the company that I choose to complete this job. From beginning to end I was so pleased with them. The guys that came out to do the work was professional and had a great work ethic. I will use them again and I also recommend them to anyway that may need the service that they provide. Thank you guys.”

Shannon Duncan

Case Studies

We are a full-service inspection, engineering, and consulting company. We’re the source for innovative and unified solutions.

Our Services

Program Development

Full-service Mechanical Integrity
Program Development & Execution

Engineering Services

Ensuring the integrity of equipment,
piping & tanks throughout their life cycle

Intelligent Access

ROV, Rope Access, Scaffolding, Drones & Divers for efficient solutions that decrease inspection costs by reducing labor, downtime, and more.

Frequently Asked Questions

We’ve answered a few of the frequently asked questions we receive about tank inspections and other services we offer.

Why Choose Us?

When you choose a full-service inspection, engineering, and consulting company, you have a team of professionals all focused on improving the safety and productivity of your facility.

Why are tank inspections so important?

The inspection and cleaning interval can vary based on the type of tank. For example, above ground storage tank shall be inspected at a minimum every 5 years according to API-653 Section 6.

Cleaning and repairs should be addressed based on the findings of the tank inspection. Additional inspections between maintenance intervals are encouraged.

Why are drones used for inspections?

Drone's are used as a tool to reduce exposure to employees of hazardous environments or working conditions. It's a very cost effective means of avoiding costly scaffolding and other craft support.

A visual inspection is exactly what it sounds like: a careful, thorough review with the naked eye of every single part of an asset.

In many instances, a drone inspection will be a visual inspection, with the drone’s camera acting as the inspector’s eyes. Using a drone, visual data is collected and then reviewed in detail later by the inspector (some review is done on the spot, too, but the thorough inspection after data is collected represents the bulk of the visual inspection work).

What is Risk Based Inspection (RBI) and do I need it?

RBI categorizes or risk ranks your equipment from low to high based on the relation between the probability and consequence of failure. The results of an RBI study are detailed damage mechanism analysis, inspection planning, and overall mechanical integrity program optimization. An effective RBI study will focus your facilities budgetary dollars on the high-risk assets first, often extending inspection intervals of lower-risk assets.

What is Mechanical Integrity (MI) and why do I need it?

Mechanical Integrity (MI) is the management of process equipment such as pressure vessels, storage tanks, pressure relief devices, and piping systems. It is one of fourteen elements of OSHA’s Process Safety Management (PSM) standard. An adequate MI program will guarantee that all equipment is designed and installed per applicable codes, procedures, and specifications. MI also ensures that equipment is installed, operated, inspected, and maintained in a safe, environmentally friendly, and reliable manor.

What is non-destructive testing (NDT/NDE)?

NDE/NDT is the testing or evaluation of a material that does not cause damage during the testing process. Some examples are thickness testing of steel, flaw detection of tubes or rods, weld inspection using ultrasonics or Xray, etc. NDE/NDT is used in a multitude of industries across a large variety of material types. Compared to part/material repair or replacement NDE/NDT can be a very cost-effective way of determining the material mechanical integrity.

What type of Above Ground Storage Tank (AST) do I have? What code to inspect by?

There are many complexities for determining what inspection code governs your tank inspections. Many tanks will have a data plate that give you the code of construction. From there you can determine which inspection code governs tanks built to that code. For instance, tanks built in accordance with API 650 will require an inspection in outlined in API 653.

For more information or help in determining your inspection requirements and frequencies, contact our experts today. We are always willing to share our knowledge and help you understand how to manage your assets.

What is corrosion under insulation (CUI)?

Corrosion under insulation (CUI) is exactly what it says it is. It is corrosion that develop underneath insulation under equipment, tanks, and piping. Overtime, insulation gets damaged, worn, or punctured. These areas of damage allow moisture ingress which can cause accelerated corrosion cells to form. On equipment or piping that is coated, this process can be slowed but ultimately failure can still occur. InServe has developed CUI programs that can help you prioritize your CUI inspections and optimize your budget by identifying and focusing on high risk equipment.

What is the difference between a Vessel and a Tank?

Pressure Vessels are containers which are designed to hold liquids, vapors, or gases at high pressures, usually above 15 psig. Examples of common pressure vessels used in the petroleum refining and chemical processing industries include, but are not limited to, storage tanks, boilers, and heat exchangers. Each individual vessel has its own operating limits built in by design that it has to work under, referred to as its design pressure and design temperature. Operating outside of these limits could damage the equipment and potentially lead to loss of containment or catastrophic failure.

A Storage Tank is a container for storage of water, oil, gas and petrochemical products for domestic and industrial uses. Storage tanks are available in many shapes and sizes. They can be vertical, horizontal, underground and portable, and can be made from plastic, steel, fiberglass, stone or concrete. Water tank leakage and corrosion, as well as bacterial growth, are threats to the tank.

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