Excellent Product & Service

“Excellent product and very good support service.”

Elson G.

Customer For Over 30 Years

“We have done business with Superior Tank for over 30 years and plan on doing more business.”

Johnny G.

I only deal with Superior

“I DO NOT deal with any other bolted tank company, period. I deal only with Superior because of Huel, and he makes sure I get the best product that Superior has to offer and Huel stands behind what he puts his name on.”

John G.

Superior Customer Service

“Superior Tank took care of us in our time of need and had the best price around. Mr. Huel took very good care of us from start to finish as did the crew putting the tank up. Superior Tank was also recommended to us by a neighboring water company who was very pleased with their work as well.  Thank you Superior Tank .”

Quinn A.

Pleased With Quality & Service

“We were happy with the quality of the product as well as the follow up service. The crew was efficient and did a great job.”

William A.

The quality of the build was excellent

“The tank you built for us in 2002, has absolutely no wear on the Powder Coating or any other feature of the tank. The quality of the build was excellent, we automatically go to Superior for our tank needs as it is a known quantity.”

Robert S.

A Historic Moment

“Today  water began flowing to our customers. A bit of clean-up, replace the Brown’s gate, and we will be finished. One bit of history I remember tells me that this is the first project of this magnitude since the Empire State Building to finish ahead of schedule and (slightly) below budget. Thank you for your support.”

Peter S.

GOOD JOB!!

“Please let your crew know that I appreciate their work and efforts to get this tank done. GOOD JOB!!”

Michael B.

Have Always Used Superior

Have always used Superior and don’t know any water supply company that doesn’t use Superior.

Mark C.

Delivery & Installation

“I have purchased tanks from other companies, but none are delivered and installed with less problems than Superior Tank.”

Donald S.

Satisfied Customer

“Very good and timely response.”

Steve M.

Fantastic Bolted Steel Tank!

“Absolutely fantastic tank!  Your crew was a very impressive team; the tank went up much quicker than we had expected.”

Ed C.

Superior was one of my better decisions

I can tell you that I was extremely happy with the professionalism of the entire process from design to install. Superior was one of my better decisions while running Saltwater Disposal of North Dakota

David K.

Excellent Work

“Just wanted to let you know that your work crew was excellent. Thanks for your professionalism.”

Jack C.

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Tuesday, February 9, 2016

ISO 9001:2008 & API Q1 Spec for Steel Tanks

ISO 9001:2008 Re-certification

Recently Superior Tank Co., Inc. passed our annual re-certification audit for both the American Petroleum Institute (API) Q1 and ISO 9001:2008 certifications for design and manufacturing of bolted steel storage tanks. These prestigious certifications relate to above ground oil storage tanks and water storage tanks and are a result of years of hard work. The certifications reassure our customers they will receive the highest quality steel storage tank delivered on time.

During the annual audit, numerous aspects of our tank manufacturing process were reviewed including sales ordering, bolted steel tank production and ground storage tank installation. The audit team confirmed Superior Tank employs processes and procedures as specified by ISO 9001: 2008 QMS Certification. In addition to compliance with ISO 9001: 2008 QMS Certification, STCI has earned re-certification with American Petroleum Institute (API) Spec Q1. API Q1 Spec works in unison with the ISO 9001: 2008 QMS Certification and focuses on the API12B Standard and the accurate and responsible manufacturing of products used in the petrochemical industry.  The API Q1 Spec also includes additional elements of quality management systems such as risk assessment and risk management procedures which is critical for the petroleum industry and the focus on safety.

STCI engineers all above ground oil storage tanks to customers’ needs and the tank can range from 100 to 47,000 BBLs. All of our bolted steel storage tanks feature panelized design which significantly reduces construction time to 1/3 of tank designs thereby saving customers time and money. As the panels quickly assemble using high strength bolts, no welding or other hot work is required which reduces risk of fire. The smaller panel size is perfect for tank installation within an existing facility as large clearances are commonly not needed. The heavy duty gasket seals panels together and provide decades of leak free service. STCI custom manufactures tank fittings and piping per project specifications to ensure optimum tank operation. In addition, STCI is one of the few manufacturers providing API 12B bolted steel tanks designed for oil storage.

Superior Tank utilizes both standard and premium powder coating such as Scotchkote by 3M which is specifically tailored for corrosive environments such as oil storage and brine water storage. All of our powder coating is electrostatically applied at the factory resulting in 100% coverage without holidays for outstanding corrosion protection.

Complete bolted steel tank kits are shipped directly to the job site via truck and international shipments are transported via ocean container to protect tanks during long voyages. Our ground storage tank installation teams based in California and Texas provide tank erection services throughout North America.

In addition to API Spec Q1 and ISO 9001:2008 certification, Superior Tank has also earned FM Approvals on our water storage tanks used for fire protection.


At Superior Tank, we engineer and manufacture quality and precision into every Tank!