UST INSPECTOR FINAL PAPER 2025/2026 QUESTIONS
WITH ANSWERS GUARANTEE A+
✔✔When an automatic tank gauging system is used to monitor a tank, a 0.2 gallon/hour
leak test must be performed:
a) at least on daily
b) at least once monthly
c) at least once yearly
d) as specified by the equipment manufacturer - ✔✔b) at least once monthly; CCR
2643(b)
✔✔Any person who intentionally disables or tampers with a leak detection system in a
manner to prevent the system from detecting a leak is subject to a minimum fine of:
a) $500
b)$1,000
c) $5,000
d)$10,000 - ✔✔c) $5,000; HSC Chapter 6.7 25299(f)(2)
✔✔A violation that is causing, or threatens to cause a liquid release of petroleum from
an underground storage tank system is a _________ type of violation:
a) Minor
b) Major
c) Significant
d) Class II - ✔✔c) Significant; CCR 2717(a)
✔✔No owner or operator of a facility may deposit or allow the deposit of petroleum into
an underground storage tank system that has a red tag affixed to the system's______.
a) fill pipe
b) dispenser
c) monitoring panel
d) overfill - ✔✔a) fill pipe; CCR 2717.1(2)
✔✔An automatic shutoff device must stop the flow into the tank when the:
a) tank is 90% full
b) delivery ruck is 95% empty
c) tank is filled to no more than 95% of capacity
d) fuel level is 48 inches from the bottom of the tank - ✔✔c) tank is filled to no more
than 95% of capacity; CCR 2635(b)(2)
✔✔An automatic line leak detector is required for all pressurized piping. The automatic
line leak detector must be tested:
a) monthly
b) annually
c) every 3 years
, d) every 5 years - ✔✔b) annually; CCR 2636(f)(4) and CCR 2643(c)(3)
✔✔According to Title 23, CCR, UST Regulations, results of the tank tightness testing
must be retained for what period of time?
a) For a period of 3 years
b) For the life of the facility
c) Until the next tightness test is conducted
d) Until you are sure a release has not occurred - ✔✔a) For a period of 3 years; CCR
2712(b)
✔✔When used for release detection, automatic tank gauging systems must be certified:
a) at start up only
b) every 6 months
c) every year
d) every 3 years - ✔✔c) every year; CCR 2638(a)
✔✔The underground tank shall be inspected by the owner or operator at least once
every ______ to verify that the temporary closure measures are still place.
a) year
b) three months
c) 14 days
d) 30 days - ✔✔b) three months; CCR 2671(c)
✔✔Records for UST construction, repairs, lining, and upgrades must be kept for:
a) 10 years
b) 25 years
c) the life of the tank
d) the life of the warranty - ✔✔c) the life of the tank; CCR 2712(b)
✔✔A tank may be repaired using the interior lining method:
a) twice
b) once
c) never
d) as many times as needed - ✔✔b) once; CCR 2661(c)
✔✔Before affixing a red tag to an underground storage tank system, the local agency
shall document the:
a) date and time
b) name of the attendant
c) dispenser meter readings
d) level of product stored in tank - ✔✔d) level of product stored in tank; CCR 2717.1(c)
✔✔The secondary containment system shall be equipped with a collection system to
accumulate, temporarily store, and ______ within the system.
WITH ANSWERS GUARANTEE A+
✔✔When an automatic tank gauging system is used to monitor a tank, a 0.2 gallon/hour
leak test must be performed:
a) at least on daily
b) at least once monthly
c) at least once yearly
d) as specified by the equipment manufacturer - ✔✔b) at least once monthly; CCR
2643(b)
✔✔Any person who intentionally disables or tampers with a leak detection system in a
manner to prevent the system from detecting a leak is subject to a minimum fine of:
a) $500
b)$1,000
c) $5,000
d)$10,000 - ✔✔c) $5,000; HSC Chapter 6.7 25299(f)(2)
✔✔A violation that is causing, or threatens to cause a liquid release of petroleum from
an underground storage tank system is a _________ type of violation:
a) Minor
b) Major
c) Significant
d) Class II - ✔✔c) Significant; CCR 2717(a)
✔✔No owner or operator of a facility may deposit or allow the deposit of petroleum into
an underground storage tank system that has a red tag affixed to the system's______.
a) fill pipe
b) dispenser
c) monitoring panel
d) overfill - ✔✔a) fill pipe; CCR 2717.1(2)
✔✔An automatic shutoff device must stop the flow into the tank when the:
a) tank is 90% full
b) delivery ruck is 95% empty
c) tank is filled to no more than 95% of capacity
d) fuel level is 48 inches from the bottom of the tank - ✔✔c) tank is filled to no more
than 95% of capacity; CCR 2635(b)(2)
✔✔An automatic line leak detector is required for all pressurized piping. The automatic
line leak detector must be tested:
a) monthly
b) annually
c) every 3 years
, d) every 5 years - ✔✔b) annually; CCR 2636(f)(4) and CCR 2643(c)(3)
✔✔According to Title 23, CCR, UST Regulations, results of the tank tightness testing
must be retained for what period of time?
a) For a period of 3 years
b) For the life of the facility
c) Until the next tightness test is conducted
d) Until you are sure a release has not occurred - ✔✔a) For a period of 3 years; CCR
2712(b)
✔✔When used for release detection, automatic tank gauging systems must be certified:
a) at start up only
b) every 6 months
c) every year
d) every 3 years - ✔✔c) every year; CCR 2638(a)
✔✔The underground tank shall be inspected by the owner or operator at least once
every ______ to verify that the temporary closure measures are still place.
a) year
b) three months
c) 14 days
d) 30 days - ✔✔b) three months; CCR 2671(c)
✔✔Records for UST construction, repairs, lining, and upgrades must be kept for:
a) 10 years
b) 25 years
c) the life of the tank
d) the life of the warranty - ✔✔c) the life of the tank; CCR 2712(b)
✔✔A tank may be repaired using the interior lining method:
a) twice
b) once
c) never
d) as many times as needed - ✔✔b) once; CCR 2661(c)
✔✔Before affixing a red tag to an underground storage tank system, the local agency
shall document the:
a) date and time
b) name of the attendant
c) dispenser meter readings
d) level of product stored in tank - ✔✔d) level of product stored in tank; CCR 2717.1(c)
✔✔The secondary containment system shall be equipped with a collection system to
accumulate, temporarily store, and ______ within the system.
