TCEQ Class D Water Operator License Exam 2026 Practice Questions with
Verified Answer Explanations
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
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
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
,B)abuse public servants
C)always be right
D)answers t0 questi0ns ab0ut water
E)A&D - 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
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
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
,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 - C0RRECT ANSWER-E
A federal agency impacting the water utility industry is the...
A)TNRCC
B)EPA
C)AWWA
D)TWUA - C0RRECT ANSWER-B
The m0st imp0rtant federal law impacting the water utility industry is the ...
A)water res0urces devel0pment act
b)federal water p0lluti0n c0ntr0l act
c)hazard c0mmunicati0n act
d)safe drinking water act - C0RRECT ANSWER-D
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
, The 4 nati0nal safety and quality standards f0r drinking water c0vered in the Safe Drinking Water Act are
physical, chemical, ___, and radi0l0gical
A)mineral
B)thermal
C)bacteri0l0gical
D)mathematical - C0RRECT ANSWER-C
The state agency that regulates drinking water in TX and administers federal Safe Drinking Water Act is
the ...
A)TNRCC -- TCEQ
B)DPS
C)PUC
D)TDH - C0RRECT ANSWER-A
Required n0tificati0n by the water system t0 the TNRCC includes change 0r alterati0n 0f the system, a new
facility t0 be built and water supply ___.
A) rate increases
B) health hazards
C) b0nd electi0ns
D) bid pr0p0sals - C0RRECT ANSWER-B
S0me regi0nal and l0cal agencies impacting the water utility industry are municipal utility districts, rural
water supply c0rp0rati0ns, drainage districts, ________, gr0undwater c0nservati0n districts, and
subsidence districts.
A)sch00l districts
B)p0stal distrcits
C)real estate agencies
D)river auth0rities - C0RRECT ANSWER-D
T/F: Public relati0ns (PR) is the relati0nship between y0u, the water utility empl0yee, and the may0r. -
C0RRECT ANSWER-F
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
Verified Answer Explanations
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
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
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
,B)abuse public servants
C)always be right
D)answers t0 questi0ns ab0ut water
E)A&D - 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
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
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
,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 - C0RRECT ANSWER-E
A federal agency impacting the water utility industry is the...
A)TNRCC
B)EPA
C)AWWA
D)TWUA - C0RRECT ANSWER-B
The m0st imp0rtant federal law impacting the water utility industry is the ...
A)water res0urces devel0pment act
b)federal water p0lluti0n c0ntr0l act
c)hazard c0mmunicati0n act
d)safe drinking water act - C0RRECT ANSWER-D
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
, The 4 nati0nal safety and quality standards f0r drinking water c0vered in the Safe Drinking Water Act are
physical, chemical, ___, and radi0l0gical
A)mineral
B)thermal
C)bacteri0l0gical
D)mathematical - C0RRECT ANSWER-C
The state agency that regulates drinking water in TX and administers federal Safe Drinking Water Act is
the ...
A)TNRCC -- TCEQ
B)DPS
C)PUC
D)TDH - C0RRECT ANSWER-A
Required n0tificati0n by the water system t0 the TNRCC includes change 0r alterati0n 0f the system, a new
facility t0 be built and water supply ___.
A) rate increases
B) health hazards
C) b0nd electi0ns
D) bid pr0p0sals - C0RRECT ANSWER-B
S0me regi0nal and l0cal agencies impacting the water utility industry are municipal utility districts, rural
water supply c0rp0rati0ns, drainage districts, ________, gr0undwater c0nservati0n districts, and
subsidence districts.
A)sch00l districts
B)p0stal distrcits
C)real estate agencies
D)river auth0rities - C0RRECT ANSWER-D
T/F: Public relati0ns (PR) is the relati0nship between y0u, the water utility empl0yee, and the may0r. -
C0RRECT ANSWER-F
TCEQ Class D water 0perat0r license exam questi0ns with c0rrect answers
