Underground Storage Tanks Questions
And Answers With Verified Solutions
100% Correct!!!
Federal Regulation governing UST - ANSWER✔✔ 40 CFR 280
API - ANSWER✔✔ American Petroleum Institute
UST partially deferred from regulatory requirements - ANSWER✔✔ radioactive
material
UST part of emergency generator at nuclear fac.
airport hydrant fuel system
field constructed UST system
What created the Federal UST program - ANSWER✔✔ Subtitle I of the 1984
Hazadous and Solid Waste Amendments of the RCRA
Interstatial Monitoing - ANSWER✔✔ method that detects leaks in the space
between UST and the second barrier.
How does the leak detection work with secondary containment method? -
ANSWER✔✔ The barrier holds the leak between the tank and the barrier so that
, the leak is detected. The barrier is shaped so that a leak will be directed towards the
interstitial monitor.
How often is the interstitial monitoring checked? - ANSWER✔✔ at least once
every 30 days.
where should the barrier be located? - ANSWER✔✔ immediately around or
beneath the tank
Automatic Tank Gauging System (ATG) - ANSWER✔✔ method that uses
automated processes to monitor product level and inventory level.
In inventory mode, what does the ATG replace? - ANSWER✔✔ replaced the
gauge stick to measure product level and perform inventory control.
True or False: the tank is taken out of service and level/temp are mesured for an
hour. - ANSWER✔✔ True
How many gallons per hour must the ATG system be able to detect? -
ANSWER✔✔ 0.2 gallons per hour.
ATG systems are equipt with what kind of alarms? - ANSWER✔✔ high and low
product level, high water level and theft
Leaked petroleum produces vapors that can be detected through what? -
ANSWER✔✔ soil gas
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