Water Operator Class D Study Guide
Exam 2026 Questions and Answers
The primary purpose of the Water Utility Industry - Answer -The production and
delivery of safe drinking water to consumers
Those who work in the public water industry have a responsibility to meet
standards created by these types of government entities. - Answer -Federal and
State
basic federal and state standards state that Water must be: - Answer -disinfected,
delivered at adequate pressure, and be ample in quantity.
Employees should guard what - Answer -the water supply and facilities
Employees should guard the water supply and facilities from these three things. -
Answer -contamination, vandalism and terrorism
Bacteriological analysis records are kept for - Answer -5 years
Chemical analysis records are kept for - Answer -10 years
Records about action taken to correct violations of primary drinking water
regulations are kept for - Answer -3 years after last action taken
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Written documentation relating to sanitary surveys conducted are kept for - Answer
-10 years after the survey is completed
Documentation of a variance or exemption granted is kept for - Answer -5 years
after its expiration
Results of required tests, measurements or analysis must be reported - Answer -
within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for - Answer
-5 years
Administers water operator licensing - Answer -TCEQ
TCEQ - Answer -Texas Commission on Environmental Quality
Description of a public water system - Answer -Regularly serves at least 25
individuals daily at least 60 days out of the year.Services at least 15 service
connections.
MUDs - Answer -Municipal Utility Districts
Water is essential to - Answer -Life and health
Customers are entitled to - Answer -courteous treatment & answers to questions
about water
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,This type of public system is not required to compile monthly reports - Answer -
systems that serve less than 100 connections OR purchase treated water
Job training for water utility operators is available through these 3 organizations -
Answer -American Water Works Association, Texas Engineering Extension
Service, Texas Water Utilities Association
All public water systems are required to employ certified operators even if the
system only - Answer -redistributes treated water bought from another source
cities, municipal utility districts,rural water supply corporations mobile home
parks, campgrounds are examples of: - Answer -Public Water Systems
Examples of community water systems - Answer -cities, municipal utility
districts,rural water supply corporations, mobile home parks, campgrounds
Non-community water system - Answer -Any public water system that is not a
community system
travel trailer spaces, Hotel and motel rooms, service stations are examples of this
type of water systems - Answer -non-community water systems
The federal agency that impacts the water industry - Answer -EPA
EPA - Answer -Environmental Protection Agency
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, The most important federal law impacting the water utility industry is the - Answer
-Safe Drinking Water Act
The Safe Drinking Water Act establishes these 4 national safety and quality
standards - Answer -Physical, Chemical, Bacteriological, Radiological
The state agency that regulated drinking water in Texas and administers the Federal
Safe Drinking Water Act - Answer -TCEQ
The water system must notify the TCEQ when (5 items) - Answer -there is a
change or alteration of the system; a new facility to be build; water supply health
hazards; change in water quality; change in water source
MUDs; Rural Water Supply Corporations; Drainage Districts; Ground Water
Conservation Districts; Subsidence Districts and River Authorities -- These are
what type of agencies and what do they impact? - Answer -Regional and local
agencies that impact the water utility industry
The relationship between you and the customer - Answer -Public Relations
PR - Answer -Public Relations
Wat are the three keys to good customer relations - Answer -Everything the utility
does is PR; Customers are entitles to courteous treatment; Every employee is a PR
person
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Exam 2026 Questions and Answers
The primary purpose of the Water Utility Industry - Answer -The production and
delivery of safe drinking water to consumers
Those who work in the public water industry have a responsibility to meet
standards created by these types of government entities. - Answer -Federal and
State
basic federal and state standards state that Water must be: - Answer -disinfected,
delivered at adequate pressure, and be ample in quantity.
Employees should guard what - Answer -the water supply and facilities
Employees should guard the water supply and facilities from these three things. -
Answer -contamination, vandalism and terrorism
Bacteriological analysis records are kept for - Answer -5 years
Chemical analysis records are kept for - Answer -10 years
Records about action taken to correct violations of primary drinking water
regulations are kept for - Answer -3 years after last action taken
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Written documentation relating to sanitary surveys conducted are kept for - Answer
-10 years after the survey is completed
Documentation of a variance or exemption granted is kept for - Answer -5 years
after its expiration
Results of required tests, measurements or analysis must be reported - Answer -
within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for - Answer
-5 years
Administers water operator licensing - Answer -TCEQ
TCEQ - Answer -Texas Commission on Environmental Quality
Description of a public water system - Answer -Regularly serves at least 25
individuals daily at least 60 days out of the year.Services at least 15 service
connections.
MUDs - Answer -Municipal Utility Districts
Water is essential to - Answer -Life and health
Customers are entitled to - Answer -courteous treatment & answers to questions
about water
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,This type of public system is not required to compile monthly reports - Answer -
systems that serve less than 100 connections OR purchase treated water
Job training for water utility operators is available through these 3 organizations -
Answer -American Water Works Association, Texas Engineering Extension
Service, Texas Water Utilities Association
All public water systems are required to employ certified operators even if the
system only - Answer -redistributes treated water bought from another source
cities, municipal utility districts,rural water supply corporations mobile home
parks, campgrounds are examples of: - Answer -Public Water Systems
Examples of community water systems - Answer -cities, municipal utility
districts,rural water supply corporations, mobile home parks, campgrounds
Non-community water system - Answer -Any public water system that is not a
community system
travel trailer spaces, Hotel and motel rooms, service stations are examples of this
type of water systems - Answer -non-community water systems
The federal agency that impacts the water industry - Answer -EPA
EPA - Answer -Environmental Protection Agency
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, The most important federal law impacting the water utility industry is the - Answer
-Safe Drinking Water Act
The Safe Drinking Water Act establishes these 4 national safety and quality
standards - Answer -Physical, Chemical, Bacteriological, Radiological
The state agency that regulated drinking water in Texas and administers the Federal
Safe Drinking Water Act - Answer -TCEQ
The water system must notify the TCEQ when (5 items) - Answer -there is a
change or alteration of the system; a new facility to be build; water supply health
hazards; change in water quality; change in water source
MUDs; Rural Water Supply Corporations; Drainage Districts; Ground Water
Conservation Districts; Subsidence Districts and River Authorities -- These are
what type of agencies and what do they impact? - Answer -Regional and local
agencies that impact the water utility industry
The relationship between you and the customer - Answer -Public Relations
PR - Answer -Public Relations
Wat are the three keys to good customer relations - Answer -Everything the utility
does is PR; Customers are entitles to courteous treatment; Every employee is a PR
person
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
