Texas Water Well Driller License Exam
2026/2027 | Practice Questions, Verified
Answers & Detailed Rationales | Texas Water
Well Driller Exam Prep
TEXAS WATER WELL DRILLER LICENSE EXAM 2026/2027
Practice Questions, Verified Answers & Detailed Rationales
DOCUMENT OVERVIEW
• 200 comprehensive practice questions designed to mirror the actual Texas Water
Well Driller License Exam, covering drilling regulations, well construction standards,
groundwater geology, equipment operation, safety protocols, and compliance
requirements.
• Use this material to systematically review all exam topics, practice time
management, identify knowledge gaps, and build confidence before your licensing
test—work through sections sequentially or by topic area depending on your study
needs.
SECTION 1: TEXAS WATER WELL DRILLING REGULATIONS & LICENSING
Question 1: Which state agency in Texas has primary authority over water
well drilling regulations?
A) Texas Parks and Wildlife Department
B) Texas Water Development Board
C) Texas Commission on Environmental Quality
D) Texas Department of Water Resources
E) Texas Oil and Gas Commission
✔ CORRECT ANSWER: C) Texas Commission on Environmental Quality
RATIONALE: The Texas Commission on Environmental Quality (TCEQ) is the
primary regulatory agency responsible for establishing and enforcing water well
,drilling standards, including well construction rules, water quality protection, and
drilling contractor licensing requirements throughout Texas.
Question 2: What is the primary purpose of obtaining a Texas Water Well
Driller License?
A) To operate a drilling company without any oversight
B) To demonstrate competency in safe, proper well construction and protection of
groundwater resources
C) To gain exemption from environmental regulations
D) To be allowed to drill unlimited wells without inspections
E) To avoid responsibility for contamination of groundwater
✔ CORRECT ANSWER: B) To demonstrate competency in safe, proper well
construction and protection of groundwater resources
RATIONALE: The water well driller license is issued to qualified individuals who
have demonstrated knowledge of proper well drilling techniques, safety
procedures, groundwater protection methods, and compliance with all applicable
state and federal regulations. It serves as proof of professional competency.
Question 3: Which of the following is NOT a requirement for obtaining a Texas
Water Well Driller License?
A) Passing a comprehensive written examination
B) Obtaining a minimum of 2 years of drilling experience
C) Owning a drilling company
D) Submitting proof of technical knowledge
E) Meeting age and citizenship requirements
✔ CORRECT ANSWER: C) Owning a drilling company
,RATIONALE: While driller experience, examination passage, age, citizenship, and
technical knowledge are all required for licensure, ownership of a drilling company
is not a prerequisite. Many licensed drillers work as employees for drilling
companies or operate as independent contractors without company ownership.
Question 4: How often must a Texas Water Well Driller renew their license?
A) Annually
B) Every 2 years
C) Every 3 years
D) Every 5 years
E) Every 10 years
✔ CORRECT ANSWER: B) Every 2 years
RATIONALE: Texas water well driller licenses require renewal every 2 years.
Renewal requires payment of the renewal fee and may require completion of
continuing education requirements as mandated by the TCEQ.
Question 5: What is the minimum educational requirement for a Texas Water
Well Driller applicant?
A) PhD in geology
B) High school diploma or GED
C) Bachelor's degree in engineering
D) Associate degree in geology
E) No formal education requirement
✔ CORRECT ANSWER: B) High school diploma or GED
RATIONALE: Applicants must possess at least a high school diploma or its
equivalent (GED) as a minimum educational qualification. This ensures applicants
, have basic literacy and mathematical skills necessary for understanding drilling
regulations and safety procedures.
Question 6: Which regulation document specifically governs water well
drilling in Texas?
A) Texas Administrative Code Title 40, Part 1
B) Texas Natural Resources Code Chapter 49
C) Texas Water Code Chapter 39
D) Texas Administrative Code Title 31, Part 335
E) Texas Civil Statutes Chapter 7
✔ CORRECT ANSWER: D) Texas Administrative Code Title 31, Part 335
RATIONALE: Texas Administrative Code Title 31, Part 335 contains the
comprehensive rules and standards that regulate water well drilling practices, well
construction, well maintenance, contractor licensing, and groundwater protection
requirements in Texas.
Question 7: A licensed driller is required to maintain records of well drilling
activities for how long?
A) 1 year
B) 2 years
C) 5 years
D) 10 years
E) Indefinitely
✔ CORRECT ANSWER: C) 5 years
RATIONALE: Texas regulations require that drillers maintain detailed records of all
well drilling activities, including well logs, construction details, and testing results for
2026/2027 | Practice Questions, Verified
Answers & Detailed Rationales | Texas Water
Well Driller Exam Prep
TEXAS WATER WELL DRILLER LICENSE EXAM 2026/2027
Practice Questions, Verified Answers & Detailed Rationales
DOCUMENT OVERVIEW
• 200 comprehensive practice questions designed to mirror the actual Texas Water
Well Driller License Exam, covering drilling regulations, well construction standards,
groundwater geology, equipment operation, safety protocols, and compliance
requirements.
• Use this material to systematically review all exam topics, practice time
management, identify knowledge gaps, and build confidence before your licensing
test—work through sections sequentially or by topic area depending on your study
needs.
SECTION 1: TEXAS WATER WELL DRILLING REGULATIONS & LICENSING
Question 1: Which state agency in Texas has primary authority over water
well drilling regulations?
A) Texas Parks and Wildlife Department
B) Texas Water Development Board
C) Texas Commission on Environmental Quality
D) Texas Department of Water Resources
E) Texas Oil and Gas Commission
✔ CORRECT ANSWER: C) Texas Commission on Environmental Quality
RATIONALE: The Texas Commission on Environmental Quality (TCEQ) is the
primary regulatory agency responsible for establishing and enforcing water well
,drilling standards, including well construction rules, water quality protection, and
drilling contractor licensing requirements throughout Texas.
Question 2: What is the primary purpose of obtaining a Texas Water Well
Driller License?
A) To operate a drilling company without any oversight
B) To demonstrate competency in safe, proper well construction and protection of
groundwater resources
C) To gain exemption from environmental regulations
D) To be allowed to drill unlimited wells without inspections
E) To avoid responsibility for contamination of groundwater
✔ CORRECT ANSWER: B) To demonstrate competency in safe, proper well
construction and protection of groundwater resources
RATIONALE: The water well driller license is issued to qualified individuals who
have demonstrated knowledge of proper well drilling techniques, safety
procedures, groundwater protection methods, and compliance with all applicable
state and federal regulations. It serves as proof of professional competency.
Question 3: Which of the following is NOT a requirement for obtaining a Texas
Water Well Driller License?
A) Passing a comprehensive written examination
B) Obtaining a minimum of 2 years of drilling experience
C) Owning a drilling company
D) Submitting proof of technical knowledge
E) Meeting age and citizenship requirements
✔ CORRECT ANSWER: C) Owning a drilling company
,RATIONALE: While driller experience, examination passage, age, citizenship, and
technical knowledge are all required for licensure, ownership of a drilling company
is not a prerequisite. Many licensed drillers work as employees for drilling
companies or operate as independent contractors without company ownership.
Question 4: How often must a Texas Water Well Driller renew their license?
A) Annually
B) Every 2 years
C) Every 3 years
D) Every 5 years
E) Every 10 years
✔ CORRECT ANSWER: B) Every 2 years
RATIONALE: Texas water well driller licenses require renewal every 2 years.
Renewal requires payment of the renewal fee and may require completion of
continuing education requirements as mandated by the TCEQ.
Question 5: What is the minimum educational requirement for a Texas Water
Well Driller applicant?
A) PhD in geology
B) High school diploma or GED
C) Bachelor's degree in engineering
D) Associate degree in geology
E) No formal education requirement
✔ CORRECT ANSWER: B) High school diploma or GED
RATIONALE: Applicants must possess at least a high school diploma or its
equivalent (GED) as a minimum educational qualification. This ensures applicants
, have basic literacy and mathematical skills necessary for understanding drilling
regulations and safety procedures.
Question 6: Which regulation document specifically governs water well
drilling in Texas?
A) Texas Administrative Code Title 40, Part 1
B) Texas Natural Resources Code Chapter 49
C) Texas Water Code Chapter 39
D) Texas Administrative Code Title 31, Part 335
E) Texas Civil Statutes Chapter 7
✔ CORRECT ANSWER: D) Texas Administrative Code Title 31, Part 335
RATIONALE: Texas Administrative Code Title 31, Part 335 contains the
comprehensive rules and standards that regulate water well drilling practices, well
construction, well maintenance, contractor licensing, and groundwater protection
requirements in Texas.
Question 7: A licensed driller is required to maintain records of well drilling
activities for how long?
A) 1 year
B) 2 years
C) 5 years
D) 10 years
E) Indefinitely
✔ CORRECT ANSWER: C) 5 years
RATIONALE: Texas regulations require that drillers maintain detailed records of all
well drilling activities, including well logs, construction details, and testing results for
