Class D Water License Exam 2026
Questions and Answers
Operators have a responsibility to provide drinking water that meets federal and
state
standards. (true/false) - Answer -true
Water must be disinfected, delivered at inadequate pressure, and be ample in
quantity. (true/false) - Answer -false (adequate pressure)
Utility employees should guard the water supply and facilities from contamination,
public
tours, and even terrorism. (true/false) - Answer -false (public tours)
The state requires bacteriological sample results be kept _____ years. - Answer -5
years
The state requires chemical analysis be kept at least _____ years. - Answer -10
years
EPA requires a water system to keep a copy of each consumer confidence report at
least _____
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,years. - Answer -5 years
A public water system provides the public with piped water for human
consumption, serves
at least _____ service connections, and regularly serves at least _____ individuals
daily at least _____
days out of the year. - Answer -15 service connections
25 individuals
60 days out of the year
The water utility field affects everyone because _____. - Answer -water is essential
to life and health
The water utility employee should remember customers are entitled to _____ and
_____. - Answer -courteous treatment and answers to questions about water
In Texas, water operator licensing is administered by the _____. - Answer -TCEQ
All public water systems are required to employ licensed operators even if the
system only
_____ treated water bought from another source. - Answer -redistributes treated
water
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,Public water systems include cities, municipal utility districts, rural water supply
corporations, mobile home parks, and _____. - Answer -campgrounds
Examples of community water systems include ________.
a. municipalities
b. municipal utility districts
c. rural water supply corporations
d. mobile home parks
e. all the above - Answer -e. all of the above
A federal agency impacting the water utility industry is the _____. - Answer -EPA
The most important federal law impacting the water utility industry is the _____. -
Answer -Safe Drinking Water Act (PL93-523)
The four national safety and quality standards for drinking water covered in the
Safe
Drinking Water Act are physical, chemical, ________ and radiological. - Answer -
bacteriological
The state agency that regulates drinking water in Texas and administers the federal
Safe
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, Drinking Water Act is the ________. - Answer -TCEQ
Water utility system personnel are required to notify the TCEQ of changes or
alterations of
the system, a new facility to be built, and water supply ________. - Answer -health
hazards
Some regional and local agencies impacting the water utility industry are
municipal utility
districts, rural water supply corporations, drainage districts, ________,
groundwater
conservation districts, and subsidence districts. - Answer -river authorities
Public relations (PR) is the relationship between YOU, the water utility employee,
and the _____. - Answer -customer
The keys to good customer relations are (1) everything the utility does is PR, (2)
customers
are entitled to courteous treatment, (3) every employee is a PR person. (true/false) -
Answer -true
Meter readers are the persons with whom customers have the least contact.
(true/false) - Answer -false (meter readers often have the most contact)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Questions and Answers
Operators have a responsibility to provide drinking water that meets federal and
state
standards. (true/false) - Answer -true
Water must be disinfected, delivered at inadequate pressure, and be ample in
quantity. (true/false) - Answer -false (adequate pressure)
Utility employees should guard the water supply and facilities from contamination,
public
tours, and even terrorism. (true/false) - Answer -false (public tours)
The state requires bacteriological sample results be kept _____ years. - Answer -5
years
The state requires chemical analysis be kept at least _____ years. - Answer -10
years
EPA requires a water system to keep a copy of each consumer confidence report at
least _____
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,years. - Answer -5 years
A public water system provides the public with piped water for human
consumption, serves
at least _____ service connections, and regularly serves at least _____ individuals
daily at least _____
days out of the year. - Answer -15 service connections
25 individuals
60 days out of the year
The water utility field affects everyone because _____. - Answer -water is essential
to life and health
The water utility employee should remember customers are entitled to _____ and
_____. - Answer -courteous treatment and answers to questions about water
In Texas, water operator licensing is administered by the _____. - Answer -TCEQ
All public water systems are required to employ licensed operators even if the
system only
_____ treated water bought from another source. - Answer -redistributes treated
water
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,Public water systems include cities, municipal utility districts, rural water supply
corporations, mobile home parks, and _____. - Answer -campgrounds
Examples of community water systems include ________.
a. municipalities
b. municipal utility districts
c. rural water supply corporations
d. mobile home parks
e. all the above - Answer -e. all of the above
A federal agency impacting the water utility industry is the _____. - Answer -EPA
The most important federal law impacting the water utility industry is the _____. -
Answer -Safe Drinking Water Act (PL93-523)
The four national safety and quality standards for drinking water covered in the
Safe
Drinking Water Act are physical, chemical, ________ and radiological. - Answer -
bacteriological
The state agency that regulates drinking water in Texas and administers the federal
Safe
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, Drinking Water Act is the ________. - Answer -TCEQ
Water utility system personnel are required to notify the TCEQ of changes or
alterations of
the system, a new facility to be built, and water supply ________. - Answer -health
hazards
Some regional and local agencies impacting the water utility industry are
municipal utility
districts, rural water supply corporations, drainage districts, ________,
groundwater
conservation districts, and subsidence districts. - Answer -river authorities
Public relations (PR) is the relationship between YOU, the water utility employee,
and the _____. - Answer -customer
The keys to good customer relations are (1) everything the utility does is PR, (2)
customers
are entitled to courteous treatment, (3) every employee is a PR person. (true/false) -
Answer -true
Meter readers are the persons with whom customers have the least contact.
(true/false) - Answer -false (meter readers often have the most contact)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
