UST EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
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 - ANS 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
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 - ANS b.) The tank, all connected
piping, ancillary equipment and containment system
(H&SC, Sec 25281(z))
Under-dispenser containment was required for all UST systems by ___________.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,a.) December 31, 2003
b.) July 1, 1987
c.) January 1, 1984
d.) January 1, 2000 - ANS a.) December 31, 2003
CCR Title 23, Sec 2636(g)(C)
According to California Law, UST systems installed after July 1, 2003, require a one-time ELD test
to ensure that the tank is product tight...
a.) If the tank is located within one (1) mile of a public drinking water well
b.) If the tank is located within 1000 feet of a public drinking water well
c.) Unless the tank is equipped with secondary containment
d.) In all cases - ANS For ALL tanks before use (H&SC 25290.2 (I))
d.) In all cases
H&SC, Sec 25290.2(i)
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 - ANS b.) Cause of the release
CCR Title 23, Sec 2652(c)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,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
D. All of the above - ANS 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 - ANS D. A person who meets the
requirements of both a and b
CCR Title 23, Sec 2715(i)
The following is true of secondary containment testing, EXCEPT:
a.) Must be tested every 24 months
b.) Must be tested every 36 months
c.) Results must be submitted to the local agency within 30 days of testing
d.) Local agency must be notified 48 hours prior to testing - ANS a.) Must be tested every 24
months
CCR Title 23, Sec 2637(a)
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Records of cathodic protection system maintenance must be kept on file for ______________.
a.) 10 years
b.) 1.5 years
c.) 3 years
d.) 6.5 years - ANS d.) 6.5 years
CCR Title 23, Sec 2712(b)
Impressed current cathodic protection systems shall be inspected no less than every
___________ to ensure that they are in proper working order:
a.) 60 days
b.) 90 days
c.) 30 days
d.) 120 days - ANS a.) 60 days
CCR Title 23, Sec 2635(a)(2)
Monthly monitoring data must be kept on file for _________________.
a.) 3 years
b.) 6.5 years
c.) 5 years
d.) For the life of the UST system - ANS a.) 3 years
CCR Title 23, Sec 2712(b)
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
GRADED A+ 2025/2026
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 - ANS 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
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 - ANS b.) The tank, all connected
piping, ancillary equipment and containment system
(H&SC, Sec 25281(z))
Under-dispenser containment was required for all UST systems by ___________.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,a.) December 31, 2003
b.) July 1, 1987
c.) January 1, 1984
d.) January 1, 2000 - ANS a.) December 31, 2003
CCR Title 23, Sec 2636(g)(C)
According to California Law, UST systems installed after July 1, 2003, require a one-time ELD test
to ensure that the tank is product tight...
a.) If the tank is located within one (1) mile of a public drinking water well
b.) If the tank is located within 1000 feet of a public drinking water well
c.) Unless the tank is equipped with secondary containment
d.) In all cases - ANS For ALL tanks before use (H&SC 25290.2 (I))
d.) In all cases
H&SC, Sec 25290.2(i)
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 - ANS b.) Cause of the release
CCR Title 23, Sec 2652(c)
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,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
D. All of the above - ANS 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 - ANS D. A person who meets the
requirements of both a and b
CCR Title 23, Sec 2715(i)
The following is true of secondary containment testing, EXCEPT:
a.) Must be tested every 24 months
b.) Must be tested every 36 months
c.) Results must be submitted to the local agency within 30 days of testing
d.) Local agency must be notified 48 hours prior to testing - ANS a.) Must be tested every 24
months
CCR Title 23, Sec 2637(a)
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Records of cathodic protection system maintenance must be kept on file for ______________.
a.) 10 years
b.) 1.5 years
c.) 3 years
d.) 6.5 years - ANS d.) 6.5 years
CCR Title 23, Sec 2712(b)
Impressed current cathodic protection systems shall be inspected no less than every
___________ to ensure that they are in proper working order:
a.) 60 days
b.) 90 days
c.) 30 days
d.) 120 days - ANS a.) 60 days
CCR Title 23, Sec 2635(a)(2)
Monthly monitoring data must be kept on file for _________________.
a.) 3 years
b.) 6.5 years
c.) 5 years
d.) For the life of the UST system - ANS a.) 3 years
CCR Title 23, Sec 2712(b)
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
