UST EXAM SCRIPT 2025/2026 QUESTIONS WITH ANSWERS
GUARANTEE A+
✔✔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 - ✔✔d.) To both the SWRCB and the local
agency
CCR Title 23, Sec 2644.1(a)(5)
✔✔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)
✔✔A permit to operate a UST system must have all of the following listed on the permit,
EXCEPT:
a.) The state UST identification number(s)
b.) Name of the tank manufacturer and tank capacity
c.) Permit expiration date
d.) Monitoring requirements - ✔✔b.) Name of the tank manufacturer and tank capacity
CCR Title 23, Sec 2712(c)
✔✔All underground pressurized product piping shall have an automatic line leak
detector capable of detecting a 3-gallon per hour leak rate installed by______________.
a.) July 1, 2003
b.) November 9, 2004
c.) July 1, 2004
d.) July 1, 1987 - ✔✔b.) November 9, 2004
CCR Title 23, Sec 2636(f)(3)
✔✔A temporary closure is appropriate for which of the following:
,a.) The UST system is empty and will be removed from service indefinitely
b.) The UST system has ceased to store hazardous materials but will be used within the
next 12 consecutive months
c.) The UST system is unable to meet compliance requirements and will be removed
d.) The UST system has been red-tagged - ✔✔b.) The UST system has ceased to store
hazardous materials but will be used within the next 12 consecutive months
CCR Title 23, Sec 2671 & 2670
✔✔A local agency determines that a UST facility within the last year had compliance
issues. Prior to issuing a new permit or renewal to operate an UST the local agency
shall:
a.) Ask the state to assist in a joint inspection
b.) Request the owner/operator to submit a "Return to Compliance" form.
c.) Refer to a District Attorney Investigator
d.) Inspect the facility and determine compliance - ✔✔d.) Inspect the facility and
determine compliance
CCR Title 23, Sec 2712(c)
✔✔Spill containers must be tested no less than _______________ to demonstrate that
it is capable of containing the hazardous substances until it is detected and cleaned up.
a.) Every 6 months
b.) Every 36 months
c.) Every 12 months
d.) At the time of install or replacement - ✔✔c.) Every 12 months
H&SC, Sec 25284.2
✔✔All the following components require third party certification, except:
a.) Automatic tank gauging systems
b.) Statistical inventory reconciliation methods
c.) Spill Containment lids
d.) Liquid phase out-of-tank products - ✔✔c.) Spill Containment lids
✔✔The exterior surface of an underground storage tank must bear a marking or label
which shows the following information, except:
a.) Design pressure in psig
b.) Useable capacity in gallons.
c.) Width of the interstitial space
,d.) Identity of manufacturer - ✔✔c.) Width of the interstitial space
CCR Title 23, Sec 2631(b)
✔✔Which of the following is not a confined space:
a.) A really deep turbine sump
b.) A space not designed for continuous employee occupancy
c.) An area with limited access
d.) An area with limited ventilation - ✔✔d.) An area with limited ventilation
CCR Title 8, Sec 5157(b)
✔✔Records for UST construction, repairs, lining, and upgrades must be kept for:
a.) 3 years
b.) 10 years
c.) 5 years
d.) The life of the tank - ✔✔d.) The life of the tank
CCR Title 23, Sec 2712(b)
✔✔Under-dispenser containment was required at the time of installation for all UST
systems installed after _________________.
a.) July 1, 1987
b.) January 1, 2000
c.) January 1, 1984
d.) December 31, 2003 - ✔✔b.) January 1, 2000
CCR Title 23, Sec 2636(g)(1)(A)
✔✔Cathodic protection systems must be inspected by a certified cathodic protection
tester within __________________months of installation:
a.) 3
b.) 6
c.) 12
d.) 18 - ✔✔b.) 6
CCR Title 23, Sec 2635(a)(2)(A)
✔✔A secondary containment system which is not an integral part of primary
containment shall be designed and constructed according to an engineering
specification approved by a third party. The secondary containment system shall
, contain ______________ of the volume of the largest primary container within it, in the
case of multiple primary containers:
a.) 100 percent
b.) 10 percent
c.) 110 percent
d.) 150 percent - ✔✔d.) 150 percent
CCR Title 23, Sec 2631(e)(1)(B)
✔✔All the following are approved overfill prevention systems, except:
a.) Automatic shutoff devices
b.) Spill Containers
c.) Overfill alarms
d.) Flapper valves - ✔✔b.) Spill Containers
CCR Title 23, Sec 2635(b)(2)
✔✔New underground storage tank systems installed on or after July 1, 2004 shall meet
all of the following requirements; except:
a.) The primary containment shall be product tight
b.) The secondary containment shall be constructed to prevent any water intrusion into
the system by precipitation, infiltration or surface runoff
c.) The UST shall be provided with equipment to prevent spills and overfills from the
primary
d.) The interstitial space of the UST shall be maintained under constant vacuum - ✔✔d.)
The interstitial space of the UST shall be maintained under constant vacuum
H&SC, Sec 25290.1(c)
✔✔If the owner/operator fails to correct a significant violation within _________
business day(s) from receipt of the notice, the local agency may affix a red tag to the fill
pipe of the non-compliant UST system:
a.) Three
b.) Five
c.) Seven
d.) Same day - ✔✔c.) Seven
CCR Title 23, Sec 2717.1(b)
✔✔Automatic line leak detectors shall be installed on underground pressurized piping
with secondary containment and shall be capable of detecting a:
GUARANTEE A+
✔✔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 - ✔✔d.) To both the SWRCB and the local
agency
CCR Title 23, Sec 2644.1(a)(5)
✔✔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)
✔✔A permit to operate a UST system must have all of the following listed on the permit,
EXCEPT:
a.) The state UST identification number(s)
b.) Name of the tank manufacturer and tank capacity
c.) Permit expiration date
d.) Monitoring requirements - ✔✔b.) Name of the tank manufacturer and tank capacity
CCR Title 23, Sec 2712(c)
✔✔All underground pressurized product piping shall have an automatic line leak
detector capable of detecting a 3-gallon per hour leak rate installed by______________.
a.) July 1, 2003
b.) November 9, 2004
c.) July 1, 2004
d.) July 1, 1987 - ✔✔b.) November 9, 2004
CCR Title 23, Sec 2636(f)(3)
✔✔A temporary closure is appropriate for which of the following:
,a.) The UST system is empty and will be removed from service indefinitely
b.) The UST system has ceased to store hazardous materials but will be used within the
next 12 consecutive months
c.) The UST system is unable to meet compliance requirements and will be removed
d.) The UST system has been red-tagged - ✔✔b.) The UST system has ceased to store
hazardous materials but will be used within the next 12 consecutive months
CCR Title 23, Sec 2671 & 2670
✔✔A local agency determines that a UST facility within the last year had compliance
issues. Prior to issuing a new permit or renewal to operate an UST the local agency
shall:
a.) Ask the state to assist in a joint inspection
b.) Request the owner/operator to submit a "Return to Compliance" form.
c.) Refer to a District Attorney Investigator
d.) Inspect the facility and determine compliance - ✔✔d.) Inspect the facility and
determine compliance
CCR Title 23, Sec 2712(c)
✔✔Spill containers must be tested no less than _______________ to demonstrate that
it is capable of containing the hazardous substances until it is detected and cleaned up.
a.) Every 6 months
b.) Every 36 months
c.) Every 12 months
d.) At the time of install or replacement - ✔✔c.) Every 12 months
H&SC, Sec 25284.2
✔✔All the following components require third party certification, except:
a.) Automatic tank gauging systems
b.) Statistical inventory reconciliation methods
c.) Spill Containment lids
d.) Liquid phase out-of-tank products - ✔✔c.) Spill Containment lids
✔✔The exterior surface of an underground storage tank must bear a marking or label
which shows the following information, except:
a.) Design pressure in psig
b.) Useable capacity in gallons.
c.) Width of the interstitial space
,d.) Identity of manufacturer - ✔✔c.) Width of the interstitial space
CCR Title 23, Sec 2631(b)
✔✔Which of the following is not a confined space:
a.) A really deep turbine sump
b.) A space not designed for continuous employee occupancy
c.) An area with limited access
d.) An area with limited ventilation - ✔✔d.) An area with limited ventilation
CCR Title 8, Sec 5157(b)
✔✔Records for UST construction, repairs, lining, and upgrades must be kept for:
a.) 3 years
b.) 10 years
c.) 5 years
d.) The life of the tank - ✔✔d.) The life of the tank
CCR Title 23, Sec 2712(b)
✔✔Under-dispenser containment was required at the time of installation for all UST
systems installed after _________________.
a.) July 1, 1987
b.) January 1, 2000
c.) January 1, 1984
d.) December 31, 2003 - ✔✔b.) January 1, 2000
CCR Title 23, Sec 2636(g)(1)(A)
✔✔Cathodic protection systems must be inspected by a certified cathodic protection
tester within __________________months of installation:
a.) 3
b.) 6
c.) 12
d.) 18 - ✔✔b.) 6
CCR Title 23, Sec 2635(a)(2)(A)
✔✔A secondary containment system which is not an integral part of primary
containment shall be designed and constructed according to an engineering
specification approved by a third party. The secondary containment system shall
, contain ______________ of the volume of the largest primary container within it, in the
case of multiple primary containers:
a.) 100 percent
b.) 10 percent
c.) 110 percent
d.) 150 percent - ✔✔d.) 150 percent
CCR Title 23, Sec 2631(e)(1)(B)
✔✔All the following are approved overfill prevention systems, except:
a.) Automatic shutoff devices
b.) Spill Containers
c.) Overfill alarms
d.) Flapper valves - ✔✔b.) Spill Containers
CCR Title 23, Sec 2635(b)(2)
✔✔New underground storage tank systems installed on or after July 1, 2004 shall meet
all of the following requirements; except:
a.) The primary containment shall be product tight
b.) The secondary containment shall be constructed to prevent any water intrusion into
the system by precipitation, infiltration or surface runoff
c.) The UST shall be provided with equipment to prevent spills and overfills from the
primary
d.) The interstitial space of the UST shall be maintained under constant vacuum - ✔✔d.)
The interstitial space of the UST shall be maintained under constant vacuum
H&SC, Sec 25290.1(c)
✔✔If the owner/operator fails to correct a significant violation within _________
business day(s) from receipt of the notice, the local agency may affix a red tag to the fill
pipe of the non-compliant UST system:
a.) Three
b.) Five
c.) Seven
d.) Same day - ✔✔c.) Seven
CCR Title 23, Sec 2717.1(b)
✔✔Automatic line leak detectors shall be installed on underground pressurized piping
with secondary containment and shall be capable of detecting a:
