Certified Tank Inspection and Testing Services in St. Louis

NDT Tanknicians is an industry leader in storage tank and pressure vessel testing, inspections, and repairs in St. Louis, Missouri. We go above and beyond to ensure the structural integrity of your tanks, boilers, pressure vessels, and pipelines so that you can enjoy peace of mind.

Increase the longevity of your assets with expert mechanical integrity evaluations and non-destructive testing.

Non-destructive testing (NDT)

OSHA 10, 30 & 40 Approved


API 653, API 510, API 570 & SP0001 Certified


Oil and gas



Chemical manufacturing

Industrial Asset Management Made Simple

Our Inspectors are certified ASNT-SNT-TC-1A Non-Destructive Testing (NDT) technicians. Our NDT methods yield in-depth quantitative results, allowing us to calculate corrosion rates and find areas of excessive deterioration. We can then recommend the preventative maintenance needed to mitigate the probability of a hazardous discharge into the environment and avoid more costly repairs later on.

We perform both fixed interval inspections and risk-based tank inspections in Missouri to provide insight into the structural integrity of your assets when it is most needed. Our expert API 653, API 510, STI SP0001, and API 570 inspections will uncover exactly how well your tank is holding up, to both outside elements and the product it contains.


  • Above Ground Tank Inspection
  • Visual Inspections
  • Ultrasonic Testing
  • Magnetic Particle Testing / Magnaflux Inspection
  • Penetrant Dye Testing
  • Vacuum Box Testing
  • Radiographic Testing
  • Ultrasonic Thickness Testing
  • Tank Tightness Testing

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Why St. Louis is Choosing NDT Tanknicians

The Gateway City is well-connected in terms of its transportation infrastructure, linking the city’s manufacturers and distributors to national and international markets. St. Louis is America’s third largest hub for freight rail, serving all corners of the country and offering two-day shipping to most of its cities. 32 million tons of freight move through The Port of St. Louis annually and the Lambert International Airport, MidAmerica St. Louis Airport, Spirit of St. Louis Airport, and St. Louis Downtown Airport provide air cargo services. St. Louis is home to a variety of petroleum refineries and chemical manufacturers, including The Kiesel Company, J.D. Streett & Co., PPG, Jost Chemical, Energy Petroleum Company, and Bi-State Emulsions Inc.

The 2022 oil spill in nearby Edwardsville that polluted Madison County waterways with approximately 165,000 gallons of crude oil has emphasized the importance of ensuring the structural integrity of storage tanks and pressure vessels. Our non-destructive testing, engineering, and repair services help to ensure the longevity of the assets of our St. Louis customers, while also offering protection against the environmental and financial costs of accidental contamination. Our expert lining and coating services further safeguard these assets from the damage caused by the region’s often severe hail storms and tornadoes. We are proud serve St. Louis County.

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  • American Society of Non-Destructive Testing (ASNT) SNT TC-1A
  • National Association of Corrosion Engineers (NACE) Certified Coating Inspector
  • Steel Tank Institute (STI) SP001 AST (Shop Fabricated) Certified
  • American Petroleum Institute (API) 653 AST (Field Erected) Certified
  • American Petroleum Institute (API) 651 (Cathodic Protection) Certified
  • American Petroleum Institute (API) 570 (Pipelines)
  • American Petroleum Institute (API) 510 (Pressure Vessel)Certified

We take pride in the certifications we hold and strive to always uphold the high standards of the respected organizations that granted them.


Tank Coatings and Linings
We offer surface preparation and application of interior and exterior anti-corrosive coating systems for a wide range of substrates, including concrete, steel alloys, and plastics.

Repairs, Alterations, and Engineering Repairs
Whether you’re dealing with corrosion, plumbing failure, poor maintenance, dispensing and delivery problems, or unsafe tank conditions, our expert repair services increase the lifespan of your assets.

Industrial Cleaning
We have extensive experience and state-of-the-art equipment for cleaning all types of industrial environments, including storage tanks, sumps, separators, and pressurized vessels.


Oil & Gas Refining: Above ground Storage Tanks, Process piping & Pressure vessels

Insulated Asphalt ASTs

Rendering Tanks

Air Receiver Tanks


Mechanical Integrity Evaluation

Non Destructive Testing

Mechanical Integrity Evaluation

Asset Remaining Life


The Missouri Department of Agriculture oversees the Petroleum Inspection Program in cooperation with the Environmental Protection Agency, Federal Trade Commission, Missouri Highway Patrol, Department of Natural Resources, Department of Transportation, Department of Revenue, the State Fire Marshall, and other stakeholders.

The Missouri Department of Natural Resources oversees the investigation, clean-up, and remediation of petroleum spills and leaks caused by faulty above ground storage tanks, though it does not regulate their operation. Depending on what is being stored, storage tanks may be regulated under Missouri’s Petroleum Storage Tank Law.

Missouri Department of Agriculture
PO Box 630
1616 Missouri Boulevard
Jefferson City, Missouri 65102
Phone: (573) 751-4211
Email: aginfo@mda.mo.gov 

Petroleum/Propane/Anhydrous Ammonia Program
Phone: (573) 751-7062 or (573) 751-5635
Fax: (573) 751-0281
Email: mda.fueldevicesafety@mda.mo.gov 

The Missouri Department of Natural Resources
1101 Riverside Drive
PO Box 176
Jefferson City, MO 65102-0176
Phone: (573) 751-3443
Toll free: (800) 361-4827
Relay: (800) 735‑2966
Email: contact@dnr.mo.gov 

Pipeline and Hazardous Materials Safety Administration’s Office of Pipeline Safety (PHMSA)
1200 New Jersey Avenue SE, Washington, DC 20590
Phone: (202) 366-4433
HAZMAT Registration Help Desk: (202) 366-4109
Hazardous Materials Information Center: 1 (800) 467-4922

U.S. Environmental Protection Agency (EPA)
Region 7 Office
Environmental Protection Agency
11201 Renner Blvd.
Lenexa, KS 66219
Phone: (913) 551-7003
Toll free: (800) 223-0425