Water Operator Class D Study Guide
(2026/2027) Questions and Verified Answers,
100% Guarantee Pass
The primary purpose of the Water Utility Industry - CORRECT 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. - CORRECT ANSWER -Federal and State
basic federal and state standards state that Water must be: - CORRECT ANSWER -disinfected,
delivered at adequate pressure, and be ample in quantity.
Employees should guard what - CORRECT ANSWER -the water supply and facilities
Employees should guard the water supply and facilities from these three things. - CORRECT
ANSWER -contamination, vandalism and terrorism
Bacteriological analysis records are kept for - CORRECT ANSWER -5 years
Chemical analysis records are kept for - CORRECT ANSWER -10 years
Records about action taken to correct violations of primary drinking water regulations are kept
for - CORRECT ANSWER -3 years after last action taken
Written documentation relating to sanitary surveys conducted are kept for - CORRECT
ANSWER -10 years after the survey is completed
,Documentation of a variance or exemption granted is kept for - CORRECT ANSWER -5 years
after its expiration
Results of required tests, measurements or analysis must be reported - CORRECT ANSWER -
within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for - CORRECT
ANSWER -5 years
Administers water operator licensing - CORRECT ANSWER -TCEQ
TCEQ - CORRECT ANSWER -Texas Commission on Environmental Quality
Description of a public water system - CORRECT ANSWER -Regularly serves at least 25
individuals daily at least 60 days out of the year.Services at least 15 service connections.
MUDs - CORRECT ANSWER -Municipal Utility Districts
Water is essential to - CORRECT ANSWER -Life and health
Customers are entitled to - CORRECT ANSWER -courteous treatment & answers to questions
about water
This type of public system is not required to compile monthly reports - CORRECT ANSWER -
systems that serve less than 100 connections OR purchase treated water
Job training for water utility operators is available through these 3 organizations - CORRECT
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 -
CORRECT ANSWER -redistributes treated water bought from another source
cities, municipal utility districts,rural water supply corporations mobile home parks,
campgrounds are examples of: - CORRECT ANSWER -Public Water Systems
Examples of community water systems - CORRECT ANSWER -cities, municipal utility
districts,rural water supply corporations, mobile home parks, campgrounds
Non-community water system - CORRECT 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 - CORRECT ANSWER -non-community water systems
The federal agency that impacts the water industry - CORRECT ANSWER -EPA
EPA - CORRECT ANSWER -Environmental Protection Agency
The most important federal law impacting the water utility industry is the - CORRECT
ANSWER -Safe Drinking Water Act
The Safe Drinking Water Act establishes these 4 national safety and quality standards -
CORRECT ANSWER -Physical, Chemical, Bacteriological, Radiological
The state agency that regulated drinking water in Texas and administers the Federal Safe
Drinking Water Act - CORRECT ANSWER -TCEQ
, The water system must notify the TCEQ when (5 items) - CORRECT 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? - CORRECT ANSWER -Regional and local agencies that impact the water
utility industry
The relationship between you and the customer - CORRECT ANSWER -Public Relations
PR - CORRECT ANSWER -Public Relations
Wat are the three keys to good customer relations - CORRECT ANSWER -Everything the utility
does is PR; Customers are entitles to courteous treatment; Every employee is a PR person
Customers have the most contact with - CORRECT ANSWER -Meter Readers
Meter readers can be ambassadors of goodwill by doing these 5 things - CORRECT ANSWER -
wearing identifying clothing; being neat and courteous; Teaching customers how to read their
meter; Explaining utility policies such as delinquent notices or disputed readings; Taking care or
property
Maintenance crews can warn customers of - CORRECT ANSWER -service interruptions
Maintenance crews can provide this to protect the public - CORRECT ANSWER -signs and
barriers
The plant operator is responsible for making the water - CORRECT ANSWER -safe to drink and
use
(2026/2027) Questions and Verified Answers,
100% Guarantee Pass
The primary purpose of the Water Utility Industry - CORRECT 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. - CORRECT ANSWER -Federal and State
basic federal and state standards state that Water must be: - CORRECT ANSWER -disinfected,
delivered at adequate pressure, and be ample in quantity.
Employees should guard what - CORRECT ANSWER -the water supply and facilities
Employees should guard the water supply and facilities from these three things. - CORRECT
ANSWER -contamination, vandalism and terrorism
Bacteriological analysis records are kept for - CORRECT ANSWER -5 years
Chemical analysis records are kept for - CORRECT ANSWER -10 years
Records about action taken to correct violations of primary drinking water regulations are kept
for - CORRECT ANSWER -3 years after last action taken
Written documentation relating to sanitary surveys conducted are kept for - CORRECT
ANSWER -10 years after the survey is completed
,Documentation of a variance or exemption granted is kept for - CORRECT ANSWER -5 years
after its expiration
Results of required tests, measurements or analysis must be reported - CORRECT ANSWER -
within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for - CORRECT
ANSWER -5 years
Administers water operator licensing - CORRECT ANSWER -TCEQ
TCEQ - CORRECT ANSWER -Texas Commission on Environmental Quality
Description of a public water system - CORRECT ANSWER -Regularly serves at least 25
individuals daily at least 60 days out of the year.Services at least 15 service connections.
MUDs - CORRECT ANSWER -Municipal Utility Districts
Water is essential to - CORRECT ANSWER -Life and health
Customers are entitled to - CORRECT ANSWER -courteous treatment & answers to questions
about water
This type of public system is not required to compile monthly reports - CORRECT ANSWER -
systems that serve less than 100 connections OR purchase treated water
Job training for water utility operators is available through these 3 organizations - CORRECT
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 -
CORRECT ANSWER -redistributes treated water bought from another source
cities, municipal utility districts,rural water supply corporations mobile home parks,
campgrounds are examples of: - CORRECT ANSWER -Public Water Systems
Examples of community water systems - CORRECT ANSWER -cities, municipal utility
districts,rural water supply corporations, mobile home parks, campgrounds
Non-community water system - CORRECT 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 - CORRECT ANSWER -non-community water systems
The federal agency that impacts the water industry - CORRECT ANSWER -EPA
EPA - CORRECT ANSWER -Environmental Protection Agency
The most important federal law impacting the water utility industry is the - CORRECT
ANSWER -Safe Drinking Water Act
The Safe Drinking Water Act establishes these 4 national safety and quality standards -
CORRECT ANSWER -Physical, Chemical, Bacteriological, Radiological
The state agency that regulated drinking water in Texas and administers the Federal Safe
Drinking Water Act - CORRECT ANSWER -TCEQ
, The water system must notify the TCEQ when (5 items) - CORRECT 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? - CORRECT ANSWER -Regional and local agencies that impact the water
utility industry
The relationship between you and the customer - CORRECT ANSWER -Public Relations
PR - CORRECT ANSWER -Public Relations
Wat are the three keys to good customer relations - CORRECT ANSWER -Everything the utility
does is PR; Customers are entitles to courteous treatment; Every employee is a PR person
Customers have the most contact with - CORRECT ANSWER -Meter Readers
Meter readers can be ambassadors of goodwill by doing these 5 things - CORRECT ANSWER -
wearing identifying clothing; being neat and courteous; Teaching customers how to read their
meter; Explaining utility policies such as delinquent notices or disputed readings; Taking care or
property
Maintenance crews can warn customers of - CORRECT ANSWER -service interruptions
Maintenance crews can provide this to protect the public - CORRECT ANSWER -signs and
barriers
The plant operator is responsible for making the water - CORRECT ANSWER -safe to drink and
use
