Get Usts: Requirements And Options - Environmental Protection Agency - Epa

The line tightness test must be able to detect a leak at least as small as 0.1 gallon per hour when the line pressure is 1.5 times its normal operating pressure. The test must be conducted each year.

For tanks installed after April 11, 2016, Interstitial Monitoring is the only permissible leak detection method. The interstitial monitor must be checked at least once every 30 days.

A type of anchoring system used to prevent underground storage tanks from floating out of the ground during periods of high groundwater. Deadman anchors are made of reinforced concrete. The weight of the beams goes a long way toward holding down the tank if it seeks to float. ...

Overfill Resources. Overfill protection are devices that either shut off product flow, restrict product flow or alert the delivery operator with an alarm when the tank is close to being full. These devices are installed inside the tank and activate if the product in the UST reaches a certain level in the tank.

Every three years, owners and operators must test double-walled spill buckets and containment sumps if they choose not to periodically monitor the integrity of both walls; see 40 CFR 280.35(a)(1)(ii).

Monthly monitoring for piping includes interstitial monitoring, vapor monitoring, groundwater monitoring, and other accepted methods (such as SIR and electronic line leak detectors).

UST owners and operators are responsible for reporting and cleaning up any releases. See Preventing Releases, Detecting Releases, and Cleaning Up Releases. EPA produced a 36-page booklet Musts For USTs that clearly presents the UST regulatory requirements.

The cathodic protection system must be tested by a qualified cathodic protection tester within six months of installation and at least every three years thereafter. In addition, cathodic protection systems must be tested within six months of any repair to any cathodically protected UST system.