Underground Storage Tanks UPDATED
ACTUAL Questions and CORRECT
Answers
Federal Regulation governing UST - CORRECT ANSWER - 40 CFR 280
API - CORRECT ANSWER - American Petroleum Institute
UST partially deferred from regulatory requirements - CORRECT 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 - CORRECT ANSWER - Subtitle I of the 1984
Hazadous and Solid Waste Amendments of the RCRA
Purpose of UST Regulation - CORRECT ANSWER - Prevent
Detect
Correct
Financial ability
Interstatial Monitoing - CORRECT ANSWER - method that detects leaks in the space
between UST and the second barrier.
How does the leak detection work with secondary containment method? - CORRECT
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? - CORRECT ANSWER - at least once
every 30 days.
where should the barrier be located? - CORRECT ANSWER - immediately around or
beneath the tank
Automatic Tank Gauging System (ATG) - CORRECT ANSWER - method that uses
automated processes to monitor product level and inventory level.
In inventory mode, what does the ATG replace? - CORRECT 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. -
CORRECT ANSWER - True
How many gallons per hour must the ATG system be able to detect? - CORRECT
ANSWER - 0.2 gallons per hour.
ATG systems are equipt with what kind of alarms? - CORRECT ANSWER - high and low
product level, high water level and theft
Leaked petroleum produces vapors that can be detected through what? - CORRECT
ANSWER - soil gas
How many monitoring wells should be dug to monitor vapors? - CORRECT ANSWER -
minimum of 2 wells for 1 tank
three or more wells for two or more.
What kind of back fill must be used to help move/detect vapors? - CORRECT ANSWER -
sand, gravel, or any other other material that allows the movement of vapors.
ACTUAL Questions and CORRECT
Answers
Federal Regulation governing UST - CORRECT ANSWER - 40 CFR 280
API - CORRECT ANSWER - American Petroleum Institute
UST partially deferred from regulatory requirements - CORRECT 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 - CORRECT ANSWER - Subtitle I of the 1984
Hazadous and Solid Waste Amendments of the RCRA
Purpose of UST Regulation - CORRECT ANSWER - Prevent
Detect
Correct
Financial ability
Interstatial Monitoing - CORRECT ANSWER - method that detects leaks in the space
between UST and the second barrier.
How does the leak detection work with secondary containment method? - CORRECT
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? - CORRECT ANSWER - at least once
every 30 days.
where should the barrier be located? - CORRECT ANSWER - immediately around or
beneath the tank
Automatic Tank Gauging System (ATG) - CORRECT ANSWER - method that uses
automated processes to monitor product level and inventory level.
In inventory mode, what does the ATG replace? - CORRECT 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. -
CORRECT ANSWER - True
How many gallons per hour must the ATG system be able to detect? - CORRECT
ANSWER - 0.2 gallons per hour.
ATG systems are equipt with what kind of alarms? - CORRECT ANSWER - high and low
product level, high water level and theft
Leaked petroleum produces vapors that can be detected through what? - CORRECT
ANSWER - soil gas
How many monitoring wells should be dug to monitor vapors? - CORRECT ANSWER -
minimum of 2 wells for 1 tank
three or more wells for two or more.
What kind of back fill must be used to help move/detect vapors? - CORRECT ANSWER -
sand, gravel, or any other other material that allows the movement of vapors.
