TEXAS WASTEWATER EXAMINATION
VERSIONS A AND B Actual Exam
2026/2027 Complete Questions and
Verified Answers Graded A Pass
Guaranteed - A+ Graded
SECTION 1: REGULATORY AGENCY & BASIC CONCEPTS
QUESTION 1
The state agency responsible for enforcing pollution control laws in Texas is
the:
A) Texas Department of Health
B) Texas Commission on Environmental Quality (TCEQ)
C) Environmental Protection Agency (EPA)
D) Texas Water Development Board
Correct ,,,,answer,,,,: B
Rationale: TCEQ is the state agency created by the Texas Water Code to enforce
pollution control laws, issue permits, and regulate wastewater treatment and water
quality standards in Texas. The EPA is a federal agency .
,QUESTION 2
Who was TCEQ created by?
A) The U.S. Congress
B) The Texas Water Code
C) The Clean Water Act
D) The Texas Legislature
Correct ,,,,answer,,,,: B
Rationale: TCEQ was created by the Texas Water Code, which establishes the
protection of water quality and quantity, sets stream standards, issues permits for
discharges, identifies non-point source controls, and establishes water reuse .
QUESTION 3
Each person uses approximately how many gallons of water per day?
A) 50 gallons
B) 75 gallons
C) 100 gallons
D) 150 gallons
Correct ,,,,answer,,,,: C
Rationale: The average person uses approximately 100 gallons of water per day.
This figure is used in designing wastewater collection and treatment systems to
estimate flow rates .
,QUESTION 4
Why is it necessary to treat wastewater?
A) To remove color and turbidity
B) To stabilize unstable organic matter
C) To increase dissolved oxygen
D) To produce drinking water
Correct ,,,,answer,,,,: B
Rationale: The primary purpose of wastewater treatment is to stabilize unstable
organic matter and remove harmful contaminants before the water is discharged to
the waters of the state. This protects public health and the environment .
QUESTION 5
What are reasons TCEQ can revoke an operator's license?
A) Permit violations
B) Falsifying records
C) Neglect of duty
D) All of the above
Correct ,,,,answer,,,,: D
Rationale: TCEQ can revoke an operator's license for permit violations, falsifying
records, neglect of duty, or other "good causes" as defined in regulations.
Operators must maintain professional standards to retain their certification .
, QUESTION 6
What is the term "pathogenic" refers to?
A) The ability to treat wastewater
B) Disease-causing capability
C) Oxygen-demanding characteristics
D) Settling properties
Correct ,,,,answer,,,,: B
Rationale: Pathogenic means capable of causing disease. Pathogens in wastewater
include bacteria, viruses, and parasites that must be removed or inactivated during
treatment to protect public health .
QUESTION 7
The minimum separation between sewer lines and potable water lines is:
A) 5 feet
B) 7 feet
C) 9 feet
D) 12 feet
Correct ,,,,answer,,,,: C
Rationale: The minimum separation between sewer lines and potable water lines
is 9 feet. This separation is critical to prevent contamination of drinking water
supplies by wastewater .
VERSIONS A AND B Actual Exam
2026/2027 Complete Questions and
Verified Answers Graded A Pass
Guaranteed - A+ Graded
SECTION 1: REGULATORY AGENCY & BASIC CONCEPTS
QUESTION 1
The state agency responsible for enforcing pollution control laws in Texas is
the:
A) Texas Department of Health
B) Texas Commission on Environmental Quality (TCEQ)
C) Environmental Protection Agency (EPA)
D) Texas Water Development Board
Correct ,,,,answer,,,,: B
Rationale: TCEQ is the state agency created by the Texas Water Code to enforce
pollution control laws, issue permits, and regulate wastewater treatment and water
quality standards in Texas. The EPA is a federal agency .
,QUESTION 2
Who was TCEQ created by?
A) The U.S. Congress
B) The Texas Water Code
C) The Clean Water Act
D) The Texas Legislature
Correct ,,,,answer,,,,: B
Rationale: TCEQ was created by the Texas Water Code, which establishes the
protection of water quality and quantity, sets stream standards, issues permits for
discharges, identifies non-point source controls, and establishes water reuse .
QUESTION 3
Each person uses approximately how many gallons of water per day?
A) 50 gallons
B) 75 gallons
C) 100 gallons
D) 150 gallons
Correct ,,,,answer,,,,: C
Rationale: The average person uses approximately 100 gallons of water per day.
This figure is used in designing wastewater collection and treatment systems to
estimate flow rates .
,QUESTION 4
Why is it necessary to treat wastewater?
A) To remove color and turbidity
B) To stabilize unstable organic matter
C) To increase dissolved oxygen
D) To produce drinking water
Correct ,,,,answer,,,,: B
Rationale: The primary purpose of wastewater treatment is to stabilize unstable
organic matter and remove harmful contaminants before the water is discharged to
the waters of the state. This protects public health and the environment .
QUESTION 5
What are reasons TCEQ can revoke an operator's license?
A) Permit violations
B) Falsifying records
C) Neglect of duty
D) All of the above
Correct ,,,,answer,,,,: D
Rationale: TCEQ can revoke an operator's license for permit violations, falsifying
records, neglect of duty, or other "good causes" as defined in regulations.
Operators must maintain professional standards to retain their certification .
, QUESTION 6
What is the term "pathogenic" refers to?
A) The ability to treat wastewater
B) Disease-causing capability
C) Oxygen-demanding characteristics
D) Settling properties
Correct ,,,,answer,,,,: B
Rationale: Pathogenic means capable of causing disease. Pathogens in wastewater
include bacteria, viruses, and parasites that must be removed or inactivated during
treatment to protect public health .
QUESTION 7
The minimum separation between sewer lines and potable water lines is:
A) 5 feet
B) 7 feet
C) 9 feet
D) 12 feet
Correct ,,,,answer,,,,: C
Rationale: The minimum separation between sewer lines and potable water lines
is 9 feet. This separation is critical to prevent contamination of drinking water
supplies by wastewater .
