Storage Tank Testing
and Inspections

Certified Storage Tank Inspection and Testing (NDT)
in the Mankato, MN area

Discover why corporations in the Mankato, MN area choose Genesis Environmental Solutions for aboveground and underground storage tank integrity testing and inspections.

Non-Destructive Testing

Non-Destructive Testing Services

Certified Inspectors

API 1631, 653, 510 and STI SP001 Certified Inspectors

Advanced Testing Techniques

Advanced Testing Techniques

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Full Service Storage Tank Testing

Looking for professional storage tank inspections and tank integrity testing in the Mankato, MN area? Genesis Environmental Solutions’ personnel have extensive experience, specialty training and state of the art equipment for inspecting any type of tank including fuel, oil, sludge, water and chemical tanks.

Services and Capabilities

ASME, AWS and API NDE Inspections
Vacuum Box Examination (VB)
Magnetic Flux Leakage (MFL/MFE)
Ultrasonic Thickness Testing (UTT)
Visual Testing (VT)
Shell Plate UT, Head UT, and Through Coating UT
Magnetic Particle Testing (MT)
Penetrant Testing (PT)
Dry Film Coating Inspection
Ultrasonic Shear Wave Testing (UTSW)

Certified to do the job right

Our personnel have certifications from both the American Petroleum Institute and Steel Tank Institute in the inspection and operation of these tanks, including:

  • API 653 Aboveground Storage Tank Inspection Certification
  • API 1631 Underground Storage Tank Inspection Certification
  • API 510 Pressure Vessel Inspection Certification
  • API 570 Piping Inspection Certification
  • Steel Tank Institute (STI) SP001 Tank Inspection Certifications

This combination of expertise and nationally recognized certifications allow us to provide services for all types of projects, from a single fuel station tank to field-built erected tank farms.

You can trust Genesis for professional tank testing and environmental services.

  • The facility manager gave great reports about the Genesis employees on their professionalism and hard work. I have listed below an excerpt: 'Very professional. I would definitely recommend them to anyone else.'

    Jason Crum, Co-op Project Engineer, Ergon, Inc.

Industries Served

Just a sample of the industries we work with in the Mankato, MN area.

Water & Wastewater

Bridge & Highway

Petrochemical

Pipelines & Terminals

Food & Beverage

Manufacturing

Power Generation

municipalities

engineering

Recent Projects

A few examples showing the range of projects that our storage tank division has worked on.

YRC
Inspection & Cleaning Client: YRC Worldwide Inc.

Performed tank cleaning and API 653 tank inspections and similar service inspections for YRC Worldwide. Fuel was removed and recycled prior to cleaning and inspection services.

West Plains Energy
Diesel Storage Tank Client: West Plains Energy

Genesis was awarded this diesel storage tank project from West Plains Energy. The project included a API 653 inspection in addition to a coatings and lining application.

KCPL Tank
5.2 Million Gallon Tank Client: Kansas City Power & Light

Performed tank inspection, cleaning, internal tank lining, piping replacement and containment grading for KCP&L. Project included coatings application on transfer pump station piping.

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Our Clients

Clients we've done projects for over the years.

Tank Inspection FAQ

Your questions answered about tank inspections in the Mankato, MN area.

Under 40 CFR 112 (SPCC Rule), facilities storing 1,320 gallons or more of oil in aboveground storage tanks (each container ≥ 55 gal) and with a reasonable potential to discharge into navigable waters—such as the Minnesota River, which flows directly through Mankato—must maintain an SPCC Plan. This includes documented inspections of tanks, piping, valves, and containment systems to demonstrate ongoing spill prevention and response readiness.

Minnesota operates one of the more comprehensive state-level AST programs in the country under Minn. R. Chapter 7151 and Minn. Stat. §§ 116.46–116.491, administered by the Minnesota Pollution Control Agency (MPCA). Owners of commercial ASTs storing 500 gallons or more of petroleum or hazardous substances must notify the MPCA within 30 days of installation. All regulated tanks and containment areas are subject to monthly visual inspections, with leak detection checks required every 72 hours or weekly depending on containment type. Field-erected steel tanks must be inspected by an API 653 Certified Inspector, with inspection intervals determined by tank design, contents, and age per API 653; the MPCA requires submission of its API 653 Inspection Summary form following each inspection. Facilities with total AST capacity under one million gallons are covered by the Chapter 7151 rules, while those at or above one million gallons require an individual MPCA major facility permit specifying site-specific inspection, containment, and monitoring requirements.

Genesis Inspection Services helps businesses in Mankato and throughout Blue Earth County maintain compliance through certified API 653 and STI SP001 tank inspections and thorough documentation packages designed to meet both EPA SPCC regulations and Minnesota state requirements under the MPCA's AST program.

API 653 inspections are required for large, field-erected aboveground storage tanks (ASTs) that are constructed to the API 650 standard. In Mankato, these tanks are commonly used by petroleum terminals, manufacturing plants, chemical facilities, and utilities to store fuel, oil, or hazardous liquids. If your tank is over 75,000 gallons, made from welded-steel construction, has a diameter of 30 feet or more, or a height of 50 feet or more, there's a high likelihood it falls under API 653 requirements.
STI SP001 inspections are typically required for shop-fabricated aboveground storage tanks under 75,000 gallons, often found at gas stations, commercial facilities, and industrial properties. If you're storing oil or hazardous substances in Mankato, you may be subject to the EPA's Spill Prevention, Control, and Countermeasure (SPCC) rules for this inspection.
The frequency depends on the tank size, contents, and regulatory classification. In general, API 653 recommends formal external inspections every 5 years and internal inspections every 10-20 years. STI SP001 inspection frequency is determined by their size, category, and risk factors. We can help determine your specific schedule.
Yes. All our inspectors hold API 653 and STI SP001 certifications and are trained in accordance with industry and regulatory standards. We are fully qualified to perform inspections anywhere in Minnesota, including Mankato.