ICC California UST Inspector Exam Latest

ICC California UST Inspector Exam Latest Update 2024-2025 Questions and Verified Correct Answers Guaranteed A+

*A UST that contains waste oil must comply with overfill prevention unless it receives _____ gallons per transfer.

• 15
• 25
• 10

d. 50 - CORRECT ANSWER: b. 25

23 CCR 2635(c)(2)

*All of the following should be inspected and documented on the Monitoring System

Certification form EXCEPT:

• remote overfill alarms.
• the emergency shut-off switch.
• electronic line leak detectors.

d. entry and termination of in-tank gauging wires. - CORRECT ANSWER: b. the

emergency shut-off switch.

*For UST closures, soil samples must be taken from:

• If UST is removed, beneath the removed portions of the tank, 2 ft into native soil at

each end of the tank

• If UST is removed, beneath the removed portions of the tank, from the midpoint, 1 ft

into the native soil

• If UST is not removed, beneath one side of the tank, 3 ft into the native soil
• If UST is not removed, 2 ft into native soil at each end of the tank - CORRECT

ANSWER: a. If UST is removed, beneath the removed portions of the tank, 2 ft into native soil at each end of the tank

23 CCR 2672(d)

*If a ball float is used as overfill prevention, it must begin restricted flow at what capacity?

• 96%
• 85%
• 90%

d. None of the above - CORRECT ANSWER: c. 90%

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23 CCR 2635(c)(1)(A)

*Piping for USTs containing motor vehicle fuel must be made of any of the following

materials except:

• Fiberglass-reinforced plastic
• Cathodically protected steel
• PVC piping

d. None of the above - CORRECT ANSWER: c. PVC piping

*The shear section of a shear valve in the UDC must be located ______ inches above the top surface of the dispenser.

• 1
• 1 1/2
• 1/2

d. 1/4 - CORRECT ANSWER: c. 1/2

PEI 1200 10.2.6 (pg.35)

*Upon installation, all new primary piping and secondary containment systems of USTs must be tested for tightness hydrostatically at what design operating pressure?

• 100% operating pressure
• 150% operating pressure
• 110% operating pressure

d. None of the above - CORRECT ANSWER: b. 150% operating pressure

23 CCR 2636(e)

*What is the purpose of site-specific variance?

• Allows an alternative method of construction or monitoring
• Distinguishes between different types of UST systems
• Distinguishes between different types of monitoring panels
• Allows for installation of multiple underground storage tanks - CORRECT ANSWER:
• Allows an alternative method of construction or monitoring

*Which is considered a "fueling incident"?

• Customer reporting fuel is coming out of dispenser too slow
• Customer reporting fuel is not coming out of dispenser in the correct amount
• Customer spills a few drops of fuel after separating from their fuel tank inlet.
• A technician spills a few drops of fuel during leak detection testing. - CORRECT

ANSWER: a. Customer reporting fuel is coming out of dispenser too slow

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PEI 500 Section 9 (pg. 28)

*Which of the following is not a valid qualitative release detection method?

a) Vadose Zone monitoring

b) Ground Water monitoring

c) Overfill monitoring

d) Monitoring Wells - CORRECT ANSWER: c) Overfill monitoring

CCR Title 23, sec 2644

*Which of the following is not considered an enforcement action?

• Permit fee increase
• Red tag

c. Civil ... - CORRECT ANSWER: a. Permit fee increase

*Who is penalized for tampering with an automatic leak detection system?

• Owner/Operator
• Service technician
• Person performed the tampering

d. The facility employee/manager on site during inspection - CORRECT ANSWER: a.

Owner/Operator

A confined space is:

a) Not meant for continuous employee occupancy

b) Limited in entry and exit

c) Large enough so that an employee can enter and perform work

d) All of the above - CORRECT ANSWER: (d) All of the above

Title 8 CCR, sec 5157(b)

A monitoring program must:

a) Be approved by the local agency

b) Be specified in the UST operating permit

c) Include the frequency of performing the monitoring

d) All of the above - CORRECT ANSWER: (d) All of the above

Section 2632(b) and (d)(1)(A)

A Monitoring System Certification includes all of the following, EXCEPT:

• submittal of a completed Monitoring System certification form
• pre-notification to the local agency of schedule Monitoring System Certification date
• affixing a tag/sticker to each monitoring equipment component that is certified,

repaired, or replaced 3 / 4

• posting the Monitoring System Certification in a visible location at the UST facility -

CORRECT ANSWER: (d) posting the Monitoring System Certification in a visible

location at the UST facility CCR Title 23, Sec 2638

A permit-required confined space has the following characteristics, EXCEPT?

• contains or has a potential to contain a hazardous atmosphere
• oxygen-deficient atmosphere
• has potential for engulfing an entrant
• has internal configuration such that an entrant would be trapped by inwardly

converging walls - CORRECT ANSWER: (b) oxygen-deficient atmosphere

Section CCR Title 8, 5157(b), Permit-required confined space (permit space)

A portion of the UST shall be exempt from visual monitoring if the owner demonstrates

which of the following:

a) It is not accessible for direct viewing

b) It is inconvenient to monitor

c) The groundwater is deeper than 50 feet

d) It would require PPE (i.e. hard hat, steel-toed boots, hearing protection) - CORRECT

ANSWER: (a) It is not accessible for direct viewing

23 CCR Section 2641(d)(1)

A single UST which contains motor vehicle fuel and which is designed with an integral

secondary containment system shall provide:

• Provide secondary containment of 100%
• Provide secondary containment at 150%
• No greater than two feet wide along the length of the tank, may be single-walled, if

tank is not equipped with overfill protection

• Tank can be single walled if tank is equipped with overfill prevention in accordance

with section 2635(b)(2)(C). - CORRECT ANSWER: A. Provide secondary containment

of 100%

§ 2631(h) Design and Construction Requirements for New Underground Storage Tanks (h) An underground storage tank which contains motor vehicle fuel and which is designed with an integral secondary containment system shall provide 100 percent secondary containment unless it is equipped with overfill prevention equipment in accordance with section 2635(c)(1)(C). In this case, the top portion of the tank, no greater than two feet wide along the length of the tank, may be single-walled.

A tank may be repaired in the following manner:

• using 12x12 inch fiberglass cloth centered on the repair
• using tank manufacturer approved epoxy or resin
• with self-tapping bolts

d) all of the above - CORRECT ANSWER: (d) all of the above

CCR 2661(d)

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