ICC CALIFORNIA UST SERVICE TECHNICIAN
EXAM (ACTUAL 2025) NEWEST 300 QUESTIONS
AND CORECT VERIFIED DETAILED ANSWERS
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
a.) The Regional Water Quality Board
CCR Title 23, Sec 2681(a)
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 Sec 25299(f)(2)
,When an ATG system is used to monitor a tank for release
detection, a 0.2 gallon/hour leak test must be performed:
a) at least once daily
b) at least once monthly
c) at least once yearly
d) as specified by the equipment manufacturer
(b) at least once monthly
Section CCR Title 23, Sec 2643(b), and Operating &
Maintaining UST Systems p.7
At what percentage of tank volume must the monitor alert at if
the in-tank probe is used for overfill prevention?
a) 85%
b) 90%
c) 95%
d) 100%
(b) 90%
23 CCR 2635 (c)(1)(A), (citation needs verification)
,Which of the following is required to be reported to the local
agency?
a) release of fuel to secondary containment which is able to
cleaned in 8 hours or less
b) release of fuel to the environment
c) presence of water in annular space
d) presence of fuel in spill bucket
(b) release of fuel to the environment
23 CCR2650 (e), HSC 6.7 25294
Secondary containment is not required on suction piping
which meets all of the following, EXCEPT?
a) a check valve is located directly below suction pump
b) operating under less than atmospheric pressure
c) piping is sloped to drain back to a monitored sump
d) check valve located at tank bottom
d) check valve located at tank bottom
23 CCR 2636(a)(3)
, The designated operator must train the employees about all of
the following except:
a) best management practices
b) monitoring plan
c) permit conditions
d) leak response plan
c) permit conditions
23 CCR 2715(c)(1)
An automatic shut-off device must stop the flow into the tank
when the:
a) tank is 90% full
b) delivery truck is 95% empty
c) tank is filled to no more than 95% capacity
d) fuel level is 48 inches from the bottom of the tank.
(c) tank is filled to no more than 95% capacity
CCR Title 23, Sec 2635(c)(1)(C)
According to CCR Title 23, UST Regulations, a person who
performs a Monitoring System certification must possess all
of the following, EXCEPT:
EXAM (ACTUAL 2025) NEWEST 300 QUESTIONS
AND CORECT VERIFIED DETAILED ANSWERS
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
a.) The Regional Water Quality Board
CCR Title 23, Sec 2681(a)
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 Sec 25299(f)(2)
,When an ATG system is used to monitor a tank for release
detection, a 0.2 gallon/hour leak test must be performed:
a) at least once daily
b) at least once monthly
c) at least once yearly
d) as specified by the equipment manufacturer
(b) at least once monthly
Section CCR Title 23, Sec 2643(b), and Operating &
Maintaining UST Systems p.7
At what percentage of tank volume must the monitor alert at if
the in-tank probe is used for overfill prevention?
a) 85%
b) 90%
c) 95%
d) 100%
(b) 90%
23 CCR 2635 (c)(1)(A), (citation needs verification)
,Which of the following is required to be reported to the local
agency?
a) release of fuel to secondary containment which is able to
cleaned in 8 hours or less
b) release of fuel to the environment
c) presence of water in annular space
d) presence of fuel in spill bucket
(b) release of fuel to the environment
23 CCR2650 (e), HSC 6.7 25294
Secondary containment is not required on suction piping
which meets all of the following, EXCEPT?
a) a check valve is located directly below suction pump
b) operating under less than atmospheric pressure
c) piping is sloped to drain back to a monitored sump
d) check valve located at tank bottom
d) check valve located at tank bottom
23 CCR 2636(a)(3)
, The designated operator must train the employees about all of
the following except:
a) best management practices
b) monitoring plan
c) permit conditions
d) leak response plan
c) permit conditions
23 CCR 2715(c)(1)
An automatic shut-off device must stop the flow into the tank
when the:
a) tank is 90% full
b) delivery truck is 95% empty
c) tank is filled to no more than 95% capacity
d) fuel level is 48 inches from the bottom of the tank.
(c) tank is filled to no more than 95% capacity
CCR Title 23, Sec 2635(c)(1)(C)
According to CCR Title 23, UST Regulations, a person who
performs a Monitoring System certification must possess all
of the following, EXCEPT:
