Underground Storage Tank
Until the mid-1980s, most USTs were made of bare steel, which is likely to corrode over time and allow UST contents to leak into the environment. Faulty installation or inadequate operating and maintenance procedures also can cause USTs to release their contents into the environment.
- Step 1: Release detection for underground storage tank
Because detecting UST systems releases quickly helps stop contamination before it spreads from UST sites, EPA requires owners and operators detect releases from their UST systems. EPA allows three categories of release detection: interstitial, internal, and external. These three categories include seven release detection methods.
- Step 2: Release discovery and confirmation
Early detection of an UST release is important, as is determining the source of the release, the type of fuel released, the occurrence of imminently threatened receptors, and the appropriate initial response.
- Step 3: Site characterization and conceptual model for LUST
Site conditions play a critical role in the fate of a release and how contamination can best be mitigated. The known characteristics of a site, such as geology and hydrology, are used to create a conceptual site model (CSM), which is utilized to guide the collection of data and determine the type and amount of required cleanup.
- Step 4: Corrective action for leaking underground storage tank
This section of the LUST Corrective Action Resources offers an overview of the corrective action process as well as the operation, maintenance, and monitoring requirements that will likely be an integral part of the process.
Source of the article and for more details, please refer to following
United States Environmental Protection Agency, Office of Underground Storage Tanks (UST)