1 | P a g e | © copyright 2024/2025 | Grade A+
Water Operator Class D Study Guide
Questions and Answers (100% Pass)
The primary purpose of the Water Utility Industry
→ 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.
→ Federal and State
basic federal and state standards state that Water must be:
→ disinfected, delivered at adequate press ure, and be ample in
quantity.
Employees should guard what
→ the water supply and facilities
Employees should guard the water supply and facilities from these three
things.
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
→ contamination, vandalism and terrorism
Bacteriological analysis records are kept for
→ 5 years
Chemical analysis records are kept for
→ 10 years
Records about action taken to correct violations of primary drinking water
regulations are kept for
→ 3 years after last action taken
Written documentation relating to sanitary surveys conducted are kept for
→ 10 years after the survey is completed
Documentation of a variance or exemption granted is kept for
→ 5 years after its expiration
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
Results of required tests, measurements or analysis must be reported
→ within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for
→ 5 years
Administers water operator licensing
→ TCEQ
TCEQ
→ Texas Commission on Environmental Quality
Description of a public water system
→ Regularly serves at least 25 individuals daily at least 60 days
out of the year.Services at least 15 service connections.
MUDs
→ Municipal Utility Districts
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
Water is essential to
→ Life and health
Customers are entitled to
→ courteous treatment & answers to questions about water
This type of public system is not required to compile monthly reports
→ systems that serve less than 100 connections OR purchase
treated water
Job training for water utility operators is available through these 3
organizations
→ 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
→ redistributes treated water bought from another source
Master01 | September, 2024/2025 | Latest update
Water Operator Class D Study Guide
Questions and Answers (100% Pass)
The primary purpose of the Water Utility Industry
→ 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.
→ Federal and State
basic federal and state standards state that Water must be:
→ disinfected, delivered at adequate press ure, and be ample in
quantity.
Employees should guard what
→ the water supply and facilities
Employees should guard the water supply and facilities from these three
things.
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
→ contamination, vandalism and terrorism
Bacteriological analysis records are kept for
→ 5 years
Chemical analysis records are kept for
→ 10 years
Records about action taken to correct violations of primary drinking water
regulations are kept for
→ 3 years after last action taken
Written documentation relating to sanitary surveys conducted are kept for
→ 10 years after the survey is completed
Documentation of a variance or exemption granted is kept for
→ 5 years after its expiration
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
Results of required tests, measurements or analysis must be reported
→ within 10 days following its completion
A copy of Consumer Confidence reports (EPA Required)must be kept for
→ 5 years
Administers water operator licensing
→ TCEQ
TCEQ
→ Texas Commission on Environmental Quality
Description of a public water system
→ Regularly serves at least 25 individuals daily at least 60 days
out of the year.Services at least 15 service connections.
MUDs
→ Municipal Utility Districts
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
Water is essential to
→ Life and health
Customers are entitled to
→ courteous treatment & answers to questions about water
This type of public system is not required to compile monthly reports
→ systems that serve less than 100 connections OR purchase
treated water
Job training for water utility operators is available through these 3
organizations
→ 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
→ redistributes treated water bought from another source
Master01 | September, 2024/2025 | Latest update
