Can I test my Underground Storage Tank (UST) for leaks instead of digging it up?
Testing Underground Storage tanks can be done, but they do not always provide accurate information. The most common tests are pressure testing and subsurface investigation.

Pressure testing requires filling the tank with air and monitoring the pressure loss. However, this technique can also do damage to the tank because it puts stress on the structure of the tank that may already be weakened. Subsurface investigation requires drilling or coring into the soil around the tank and obtaining samples which are analyzed for signs of a release of petroleum products. Subsurface investigation is effective for determining what state the soil is currently in, but cannot determine the condition of the tank. It is important to consider that tests can not predict the future of your tank. It may be more cost effective to simply have the tank removed.

How can I tell if my Aboveground Storage Tank (AST) is leaking?
If the tank is old, oil stains may be visible on the underbelly of the tank. These stains may be caused by loose fittings or over filling the tank. If there is oil visible on the floor, be sure to check the tank itself for leaks, especially following an oil delivery. Many people have tried to repair or patch leaking tanks in order to avoid the cost of removing or replacing them. Unfortunately a leak is a sign that the tank has reached the end of its useful life and needs to be replaced before major problems develop.

Why should I consider removing my Underground Storage Tank (UST)?
Many underground home heating tanks have outlived their advantages and have turned into a liability for their owners. These bare steel tanks were not designed to be buried and, if left in place, will eventually rust and leak. These tanks were never meant to last forever and approximately 50% of bare steel tanks are estimated to develop leaks within 15 years, according to the American Petroleum Institute.

Even larger tanks, that were specifically designed for underground use can leak if they do not have adequate corrosion protection. If your home heating oil storage tank leaks, it can be very unfortunate for the environment, as well as the home owner. Leaking petroleum products contaminate the groundwater. Toxic ingredients such as benzene, toluene or xylene threaten human health by poisoning the environment.

Even small, slow leaks can pose serious threats if they go undiscovered for a long period of time. The tank owner is responsible for any damage done to someone else's drinking water supply and/or for the costly cleanup and removal of contaminated soil. In addition, banks increasingly require the removal of any underground storage tanks prior to approving a home mortgage.

Therefore, as a home owner trying to sell your property you will be faced with a potentially costly situation when you go to sell your home. Having your underground storage tank removed now can save you both money and anguish.

What is Involved in the Removal a UST?
The first step for a property owner in removing a storage tank is to contact a licensed and certified tank removal specialist, such as COMMONWEALTH TANK INC. Our toll free number is 1-800-628-8260.

It is important to hire a company with experienced professionals that are properly equipped to handle the job. An inspection of the property is performed prior to the removal of the UST, in order to determine what is needed to prepare the site. If necessary, permits are obtained from the local fire and building departments to determine the property is dig safe and then utilities are marked by the respective companies to ensure safe excavating. Underground storage tanks are typically uncovered and removed using excavation equipment. The tanks are pumped out, cut, and cleaned on site and transported to a licensed tank yard for disposal. The remaining sludge is transported to a hazardous waste facility for disposal. Clean fill is then installed in the tank grave to grade.

What Happens to the Oil After my Tank is Removed?
The #2 fuel oil that is removed from your tank is transported to a licensed recycling facility. The recycling facility will blend it with #6 fuel so it can be used for commercial purposes.