Leak detection

• All regulated tanks and piping must have leak detection.

All regulated tanks and piping must have leak detection so that releases are discovered quickly before contamination spreads from the underground storage tank (UST) site. The owners and operators must provide the UST system with leak detection (also called release detection) that allows them to meet three basic requirements:

• They can detect a release from any portion of the tank or its piping that routinely contains petroleum;
• Their release detection is installed and calibrated in accordance with the manufacturer's instructions; and
• Their release detection meets the performance requirements described in the federal regulations (�280.43, �280.44, or Subpart K as applicable).

Note: Tanks 2,000 gallons and smaller may be able to use manual tank gauging to meet release detection requirements.