Certified Tank Inspection and Testing Services in South Carolina

NDT Tanknicians is an industry leader in storage tank and pressure vessel testing, inspections, and repairs in the Palmetto State. 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 inspections 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 South Carolina is Choosing NDT Tanknicians

South Carolina’s growing automotive and trucking industries, its thriving tourism centers in Charleston, Hilton Head Island, and the ever-popular Myrtle Beach area, and its large collection of interstate highways build up a large demand for both gasoline and asphalt. Companies such as Palmetto Propane, Nation Ford Chemical, Amalie Oil Co., Chase Oil, Murphy Oil, Palmetto Corp, and Banks Construction Company produce chemical and petrochemical products that bolster the state’s economy and keep its commercial activities going strong.

Storage tanks located along the Atlantic coast benefit from our expert tank coating and lining services, as the salty sea air accelerates oxidation and can lead to corrosion. These services also help to protect tanks against humidity-related degradation caused by the state’s subtropical climate. As South Carolina experiences high rates of both earthquakes and tropical cyclones, we are proud to offer our expert repair and engineering services to help safeguard and extend the life of their valuable assets.

The Plum Island Wastewater Treatment Plant spill in 2020, along with the 2014 spill in Belton and the 1996 spill into the Reedy River, have underlined the severe environmental and financial costs of unintended contamination. NDT Tanknicians will help you protect your company and South Carolina’s natural resources against these costly accidents.

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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 South Carolina Department of Health and Environmental Control (DHEC) regulates storage tanks, including planning, compliance, permits, enforcement, and remediation. Above ground storage tanks are not regulated by the DHEC. Owners are advised to follow federal guidelines and that they are responsible for cleaning up spills and leaks.

In case of an accidental spill or contamination, contact the Department of Health and Environmental Control’s 24-Hour emergency response line: 1 (888) 481-0125.

2020 South Carolina Code of Laws, Title 39 – Trade and Commerce,
Chapter 41 – Gasoline, Lubricating Oils And Other Petroleum Products.
Section 39-41-260. Aboveground storage of flammable and combustible liquids.

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 4 Office
Atlanta Federal Center
61 Forsyth Street, SW
Atlanta, GA 30303-3104
Phone: (404) 562-9900
Fax: (404) 562-8174
Toll free: (800) 241-1754