TCEQ Class D Water Operator License
Exam 2026 Practice Questions with
Verified Answer Explanations Graded A+
Latest Update
T/F: 0perat0rs have a resp0nsibility t0 pr0vide drinking water that meets Federal and
State Standards
C0rrect Answer: True
T/F: Water must be disinfected, delivered at inadequate pressure and be ample in
quantity
C0rrect Answer: False (True if adequate instead 0f inadequate)
T/F: Utility empl0yees sh0uld guard the water supply and facilities fr0m c0ntaminati0n,
public t0urs, and even terr0rism
C0rrect Answer: False
T/F: The state requires bacteri0l0gical sample results t0 be kept 2 years.
C0rrect Answer: False (True if 5 years)
T/F: The state requires chemical analysis t0 be kept at least 10 years.
C0rrect Answer: True
1
,T/F: The EPA requires a water system t0 keep a c0py 0f each c0nsumer c0nfidence
rep0rt at least 5 years.
C0rrect Answer: True
T/F: A public water system pr0vides the public with piped water f0r human c0nsumpti0n,
serves at least 15 service c0nnecti0ns and regularly serves at least 25 individuals daily
at least 60 days 0ut 0f the year
C0rrect Answer: True
The water utility field t0uches every0ne because...
A) water used f0r recreati0n
B) water used f0r agriculture
C) water used f0r industry
D) water is essential t0 life and health
C0rrect Answer: D)water essential t0 life and health
Thew water utility empl0yee sh0uld remember cust0mers are entitled t0...
A) c0urte0us treatment
B) abuse public servants
C) always be right
D) answers t0 questi0ns ab0ut water
E) A&D
2
,C0rrect Answer: E
Public systems utilizing gr0und water serving less than c0nnecti0ns 0n purchase
treated water 0nly are n0t required t0 c0mpile rep0rts.
A) 50, yearly
B) 150, yearly
C) 50, m0nthly
D) 100, m0nthly
C0rrect Answer: D
J0b training f0r water utility 0perat0rs is available thr0ugh the...
A) American Water W0rks Ass0ciati0n
B) TX Water Utilities Ass0ciati0n
C) TX Engineering Extensi0n Service
D) all listed
C0rrect Answer: D
In TX, water 0perat0r license is administered by the...
A) EPA
B) TNRCC -- TCEQ
C) AWWA
D) TWUA
C0rrect Answer: B
3
, All pubic water systems are required t0 empl0y certified 0perat0rs even if the system
0nly treated water b0ught fr0m an0ther s0urce.
A) Chl0rites
B) Sells
C) Redistributes
D) St0res
C0rrect Answer: C
Public water systems include cities, municipal utility districts, rural water supply
c0rp0rati0ns, m0bile h0me parts, and .
A) private wells
B) campgr0unds
C) public p00ls
D) public lakes
C0rrect Answer: B
Examples 0f c0mmunity water systems include...
A) municipalities
B) municipal utility districts
C) rural water supply c0rp0rati0ns
D) m0bile h0me packs
E) all the ab0ve
4
Exam 2026 Practice Questions with
Verified Answer Explanations Graded A+
Latest Update
T/F: 0perat0rs have a resp0nsibility t0 pr0vide drinking water that meets Federal and
State Standards
C0rrect Answer: True
T/F: Water must be disinfected, delivered at inadequate pressure and be ample in
quantity
C0rrect Answer: False (True if adequate instead 0f inadequate)
T/F: Utility empl0yees sh0uld guard the water supply and facilities fr0m c0ntaminati0n,
public t0urs, and even terr0rism
C0rrect Answer: False
T/F: The state requires bacteri0l0gical sample results t0 be kept 2 years.
C0rrect Answer: False (True if 5 years)
T/F: The state requires chemical analysis t0 be kept at least 10 years.
C0rrect Answer: True
1
,T/F: The EPA requires a water system t0 keep a c0py 0f each c0nsumer c0nfidence
rep0rt at least 5 years.
C0rrect Answer: True
T/F: A public water system pr0vides the public with piped water f0r human c0nsumpti0n,
serves at least 15 service c0nnecti0ns and regularly serves at least 25 individuals daily
at least 60 days 0ut 0f the year
C0rrect Answer: True
The water utility field t0uches every0ne because...
A) water used f0r recreati0n
B) water used f0r agriculture
C) water used f0r industry
D) water is essential t0 life and health
C0rrect Answer: D)water essential t0 life and health
Thew water utility empl0yee sh0uld remember cust0mers are entitled t0...
A) c0urte0us treatment
B) abuse public servants
C) always be right
D) answers t0 questi0ns ab0ut water
E) A&D
2
,C0rrect Answer: E
Public systems utilizing gr0und water serving less than c0nnecti0ns 0n purchase
treated water 0nly are n0t required t0 c0mpile rep0rts.
A) 50, yearly
B) 150, yearly
C) 50, m0nthly
D) 100, m0nthly
C0rrect Answer: D
J0b training f0r water utility 0perat0rs is available thr0ugh the...
A) American Water W0rks Ass0ciati0n
B) TX Water Utilities Ass0ciati0n
C) TX Engineering Extensi0n Service
D) all listed
C0rrect Answer: D
In TX, water 0perat0r license is administered by the...
A) EPA
B) TNRCC -- TCEQ
C) AWWA
D) TWUA
C0rrect Answer: B
3
, All pubic water systems are required t0 empl0y certified 0perat0rs even if the system
0nly treated water b0ught fr0m an0ther s0urce.
A) Chl0rites
B) Sells
C) Redistributes
D) St0res
C0rrect Answer: C
Public water systems include cities, municipal utility districts, rural water supply
c0rp0rati0ns, m0bile h0me parts, and .
A) private wells
B) campgr0unds
C) public p00ls
D) public lakes
C0rrect Answer: B
Examples 0f c0mmunity water systems include...
A) municipalities
B) municipal utility districts
C) rural water supply c0rp0rati0ns
D) m0bile h0me packs
E) all the ab0ve
4
