Page 1 of 87
TEXAS CLASS D WATER LICENSE EXAM NEWEST 2025
ACTUAL EXAM TEST BANK| COMPLETE 450 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
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)
,Page 2 of 87
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 _____
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
,Page 3 of 87
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
Public water systems include cities, municipal utility districts, rural
water supply
corporations, mobile home parks, and _____.
.....ANSWER.....campgrounds
, Page 4 of 87
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
TEXAS CLASS D WATER LICENSE EXAM NEWEST 2025
ACTUAL EXAM TEST BANK| COMPLETE 450 REAL
EXAM QUESTIONS AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+ (BRAND NEW!!)
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)
,Page 2 of 87
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 _____
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
,Page 3 of 87
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
Public water systems include cities, municipal utility districts, rural
water supply
corporations, mobile home parks, and _____.
.....ANSWER.....campgrounds
, Page 4 of 87
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
