Companies that own or operate underground storage tanks (UST) must provide a system to detect a possible product release (leak) based on U.S. Environmental Protection Agency (EPA) performance requirements set forth in 40 CFR Part 280, Subpart D, Section 280.43 or 280.44.
These regulations require that facilities equip themselves to detect a leak from any portion of the tank and the connected underground piping that routinely contains product. They also require any system to be installed, calibrated, operated and maintained in accordance with the manufacturer’s instructions, including routine maintenance and service checks for daily operation and servicing.
Systems and methods used must be capable of detecting the following leak rate or quantity with a probability of detection (Pd) of 0.95 and probability of false alarm (Pfa) of 0.05:
- Tank Tightness Testing – 0.1 gallons per hour
- Automatic Tank Gauging – 0.2 gallons per hour
- Vapor Monitoring – Any significant increase in concentrations above background
- Automatic Line Leak Detectors – 3 gallons per hour
- Line Tightness Testing – 0.1 gallons per hour
What are Your Options
To comply with these regulations, you have two options: install and manage monitoring systems while conducting the required leak detection testing and maintaining the documentation yourself or have highly-qualified, cost effective environmental technicians provide professional installation of nationally approved leak detection equipment and provide sound management and maintenance of your leak detection program.