An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Underground Storage Tanks (USTs)

Standard Test Procedures for Evaluating Various Leak Detection Methods

(EPA/530/UST-90/004 through EPA/530/UST-90/010). March 1990.

EPA produced seven testing protocols that testers could use to demonstrate that an individual release detection equipment type could meet the performance requirements noted in the federal UST requirements for detecting leaks. These protocols are: Automatic Tank Gauging Systems; Liquid-Phase Out-of-Tank Product Detectors; Non-Volumetric Tank Tightness Testing Methods; Pipeline Leak Detection Systems; Statistical Inventory Reconciliation Methods; Vapor-Phase Out-of-Tank Product Detectors; and Volumetric Tank Tightness Testing Methods.

For assistance with accessibility for the PDFs, please email Sharon Fredericks (fredericks.sharon@epa.gov).

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.