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ICC CALIFORNIA UST INSPECTOR EXAM
QUESTIONS AND ANSWERS 2025.
Which agency approves a site-specific variance which allows
for an alternative method of construction or monitoring:
a.) The Regional Water Quality Board
b.) The State Water Resources Control Board
c.) The Department of Toxic Substance Control
d.) The local agency - correct answer- a.) The Regional Water
Quality Board
CCR Title 23, Sec 2681(a)
The regulations to enforce compliance of underground storage
tank systems in the state are found in?
a.) Code of Federal Regulations, 40 CFR Part 281
b.) California Code of Regulations, Title 23, Chapter 16
c.) Code of Federal Regulations, 40 CFR Part 280
d.) California Code of Regulations, Title 23, Chapter 17 -
correct answer- b.) California Code of Regulations; Title 23,
Chapter 16
By definition an "underground storage tank system" includes
a.) The tank, all connected piping and dispensers
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b.) The tank, all connected piping, ancillary equipment and
containment system
c.) Only the tank
d.) Only tanks totally beneath the surface of the ground -
correct answer- b.) The tank, all connected piping, ancillary
equipment and containment system
(H&SC, Sec 25281(z))
The written report submitted to the local agency after an
unauthorized release is required to include the following except:
a.) Description of actions taken to stop the release
b.) Cause of the release
c.) Method of disposal of released product
d.) Date on which the release was discovered - correct answer-
b.) Cause of the release
CCR Title 23, Sec 2652(c)
An unauthorized release which does not escape from
secondary containment only requires a record on the operator's
monitoring reports provided:
A. It did not increase the hazard of fire
B. It did not cause any deterioration of the secondary
containment
C. It was cleaned up within 8 hours of detection
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D. All of the above - correct answer- D. All of the above
H&SC, Sec 25294
The annual monitoring certification may be performed by:
A. A person possessing the appropriate contractors licenses
B. An individual trained and certified by the manufacturer of the
monitoring equipment
C. A designated UST operator
D. A person who meets the requirements of both a and b -
correct answer- D. A person who meets the requirements of
both a and b
CCR Title 23, Sec 2715(i)
When an automatic tank gauge is utilized for single-walled tank
leak detection, it shall generate a post-test hard copy data
report of the following information, except:
a.) Liquid volume
b.) Fuel depth
c.) Outside air temperature
d.) Time and date of test - correct answer- c.) Outside air
temperature
CCR Title 23, Sec 2643(b)(1)
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If a UST system is utilizing an overfill alarm, the alarm must be
triggered to alert the transfer operator when the tank is no more
than ___________ full
a.) 85%
b.) 95%
c.) 90%
d.) 80% - correct answer- c.) 90%
An automatic tank gauge is utilized for leak detection of the
______________.
a.) Tank
b.) Tank and Piping
c.) Piping
d.) Interstitial space - correct answer- a.) Tank
CCR Title 23, Sec 2643(b)(1)
After completion of enhanced leak detection (ELD) test, the
ELD test results must be submitted to the
_________________.
a.) The local agency
b.) The SWRCB
c.) Owner of the UST system
d.) To both the SWRCB and the local agency - correct answer-
d.) To both the SWRCB and the local agency
CCR Title 23, Sec 2644.1(a)(5)
ICC CALIFORNIA UST INSPECTOR EXAM
QUESTIONS AND ANSWERS 2025.
Which agency approves a site-specific variance which allows
for an alternative method of construction or monitoring:
a.) The Regional Water Quality Board
b.) The State Water Resources Control Board
c.) The Department of Toxic Substance Control
d.) The local agency - correct answer- a.) The Regional Water
Quality Board
CCR Title 23, Sec 2681(a)
The regulations to enforce compliance of underground storage
tank systems in the state are found in?
a.) Code of Federal Regulations, 40 CFR Part 281
b.) California Code of Regulations, Title 23, Chapter 16
c.) Code of Federal Regulations, 40 CFR Part 280
d.) California Code of Regulations, Title 23, Chapter 17 -
correct answer- b.) California Code of Regulations; Title 23,
Chapter 16
By definition an "underground storage tank system" includes
a.) The tank, all connected piping and dispensers
,2 | Page
b.) The tank, all connected piping, ancillary equipment and
containment system
c.) Only the tank
d.) Only tanks totally beneath the surface of the ground -
correct answer- b.) The tank, all connected piping, ancillary
equipment and containment system
(H&SC, Sec 25281(z))
The written report submitted to the local agency after an
unauthorized release is required to include the following except:
a.) Description of actions taken to stop the release
b.) Cause of the release
c.) Method of disposal of released product
d.) Date on which the release was discovered - correct answer-
b.) Cause of the release
CCR Title 23, Sec 2652(c)
An unauthorized release which does not escape from
secondary containment only requires a record on the operator's
monitoring reports provided:
A. It did not increase the hazard of fire
B. It did not cause any deterioration of the secondary
containment
C. It was cleaned up within 8 hours of detection
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D. All of the above - correct answer- D. All of the above
H&SC, Sec 25294
The annual monitoring certification may be performed by:
A. A person possessing the appropriate contractors licenses
B. An individual trained and certified by the manufacturer of the
monitoring equipment
C. A designated UST operator
D. A person who meets the requirements of both a and b -
correct answer- D. A person who meets the requirements of
both a and b
CCR Title 23, Sec 2715(i)
When an automatic tank gauge is utilized for single-walled tank
leak detection, it shall generate a post-test hard copy data
report of the following information, except:
a.) Liquid volume
b.) Fuel depth
c.) Outside air temperature
d.) Time and date of test - correct answer- c.) Outside air
temperature
CCR Title 23, Sec 2643(b)(1)
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If a UST system is utilizing an overfill alarm, the alarm must be
triggered to alert the transfer operator when the tank is no more
than ___________ full
a.) 85%
b.) 95%
c.) 90%
d.) 80% - correct answer- c.) 90%
An automatic tank gauge is utilized for leak detection of the
______________.
a.) Tank
b.) Tank and Piping
c.) Piping
d.) Interstitial space - correct answer- a.) Tank
CCR Title 23, Sec 2643(b)(1)
After completion of enhanced leak detection (ELD) test, the
ELD test results must be submitted to the
_________________.
a.) The local agency
b.) The SWRCB
c.) Owner of the UST system
d.) To both the SWRCB and the local agency - correct answer-
d.) To both the SWRCB and the local agency
CCR Title 23, Sec 2644.1(a)(5)
