Preparing Underground Storage Tanks for Flood Conditions

Flood conditions can cause underground storage tanks to float up to the surface and break through the ground, damaging the storage tank and the facility that uses it. You can read more about why underground storage tanks float and how to prevent their flotation in our blog on the topic. In today’s blog, we’re going to cover what you can do in the short term to prepare an underground storage tank for flood conditions, and what to do in the immediate aftermath.

Flood conditions can come about from flooding of nearby rivers, hurricanes, heavy rain, or sudden snow melt, as we could experience this winter. From the EPA, here are some steps to take when flood conditions are in the forecast.

Before the Flood

  • Turn off electricity to the underground storage tank’s system.
  • Take a product inventory to compare with a reading after the flood. This will let you know if any product was lost.
  • Fill the tank to weigh it down.
  • Secure fill caps vent pipes and other openings so no water gets in, and no product gets out.
  • Weigh down the earth or concrete pad above the tank with a dumpster or sand bags.
  • “Close the shear valve on pressurized piping to prevent releases from product dispenser lines.”

After the Flood

  • Make sure the system’s power is still off.
  • Determine if any product leaked from the tank or if any water or debris entered the tank.
  • Check the electrical system, then turn the power back on.
  • “Check release detection system for proper operation. Perform release detection again, as soon as possible after the flood.”
  • “Check all equipment including pumps, shear valves, fill pipes, and vent lines for proper operation.”
  • “Clean and empty spill buckets and sumps, including those under the dispensers and above the tanks. Inspect the piping and fittings for damage and possible leaks.”
  • “Perform an UST system tightness test to ensure integrity prior to adding product.”
  • “Test spill buckets and sumps to ensure they are tight.”
  • “Test cathodic protection to ensure it is operating properly.


Tanks Logo - 20 Years of First Choice Serviceprepare underground storage tank flood




  • Nationwide supplier of storage tanks and vessels for 20 years.

  • Nationwide installer of storage tanks and vessels since 1997.

  • Distributor for over 55 storage tank and related accessory manufacturers.

  • Industry leader since 1993.

As a distributor and installer, we know everything there is to know about the business, which allows us to offer the best quality tanks and proper installation services. Our dual role also makes our services more cost-efficient, and allows you to cut out the hassle of working with independent distributors and installers.

Our status as a national distributor for over 55 storage tank and related accessory manufacturers means we offer a wide variety of tank solutions that are guaranteed to fit your needs, and our emphasis on customer service makes us one of the leading distributors in the industry. We’re focused on providing the best products and services to the consumer in order to remain one of the industry leaders.

We strive for complete customer satisfaction, and with our 20 years of experience, we think you’ll notice the difference you get with us. Let Tanks Direct be your first choice for all of your tank and storage system needs. Contact us today at 800-865-5555, or [email protected]. Also be sure to keep up with us on FacebookTwitterGoogle+, and LinkedIn.


This entry was posted on Tuesday, February 11th, 2014 at . You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.