Which statement is not a valid method for release detection in UST systems?

Which statement is not a valid method for release detection in UST systems?

• A. Impressed current cathodic protection
• B. Automatic tank gauging
• C. Statistical inventory reconciliation
• D. Soil-vapor monitoring

Answer: (A)

Release detection in UST systems is about finding leaks from tanks or piping. Impressed current cathodic protection is a corrosion protection technique: it applies a small electrical current to the metal to reduce corrosion. It does not monitor for leaks or indicate a release, so it does not serve as a release-detection method. Automatic tank gauging tracks actual product volume and can reveal leaks through unexplained losses. Statistical inventory reconciliation compares measured inventory with expected inventory over time to flag discrepancies that may indicate a release. Soil-vapor monitoring looks for petroleum vapors in the soil, signaling a release from the tank or underground piping. Because of that, impressed current cathodic protection is not a release-detection method, while the others are valid forms of release detection.

Release detection in UST systems is about finding leaks from tanks or piping. Impressed current cathodic protection is a corrosion protection technique: it applies a small electrical current to the metal to reduce corrosion. It does not monitor for leaks or indicate a release, so it does not serve as a release-detection method. Automatic tank gauging tracks actual product volume and can reveal leaks through unexplained losses. Statistical inventory reconciliation compares measured inventory with expected inventory over time to flag discrepancies that may indicate a release. Soil-vapor monitoring looks for petroleum vapors in the soil, signaling a release from the tank or underground piping. Because of that, impressed current cathodic protection is not a release-detection method, while the others are valid forms of release detection.