TEXAS WELL DRILLER LICENSE EXAM – 150 VERIFIED
PRACTICE QUESTIONSCOMPLETE QUESTIONS & CORRECT
ANSWERS WITH RATIONALES (LATEST 2026 UPDATE)
TABLE OF CONTENTS
1. Texas Laws, Licensing & Regulations – Questions 132
2. Well Construction & Completion Standards – Questions 3355
3. Groundwater Science & Aquifer Behavior – Questions 5675
4. Drilling Methods & Equipment – Questions 7695
5. Water Quality, Safety & Environmental Protection – Questions 96120
6. Well Abandonment & Plugging – Questions 121140
7. General & ScenarioBased Questions – Questions 141150
,SECTION 1: TEXAS LAWS, LICENSING & REGULATIONS (Questions 132)
Question 1: Which Texas agency is primarily responsible for licensing water well
drillers?
A) Texas Commission on Environmental Quality (TCEQ)
B) Texas Department of Licensing and Regulation (TDLR)
C) Texas Water Development Board (TWDB)
D) Texas Railroad Commission
Answer: B) Texas Department of Licensing and Regulation (TDLR)
Rationale: TDLR oversees the licensing, continuing education, and enforcement for
water well drillers and pump installers under Texas law. The TWDB receives well logs
but does not license drillers.
,Question 2: What is the primary purpose of the Texas Administrative Code (TAC)
Chapter 76?
A) To regulate oil and gas drilling
B) To provide procedural and substantive requirements for licensing, complaint
procedures, continuing education, and technical standards for well drillers and pump
installers
C) To set water quality standards for municipal water systems
D) To regulate surface water rights
Answer: B) To provide procedural and substantive requirements for licensing, complaint
procedures, continuing education, and technical standards for well drillers and pump
installers
Rationale: The purpose of Chapter 76 is to ensure the quality of the State's groundwater
for the safety and welfare of the public under the Texas Occupations Code, Chapters
1901 and 1902.
Question 3: Under Texas Occupations Code, which chapters govern water well drillers
and pump installers?
, A) Chapters 1901 and 1902
B) Chapters 1001 and 1002
C) Chapters 2001 and 2002
D) Chapters 3001 and 3002
Answer: A) Chapters 1901 and 1902
Rationale: Texas requires a licensed Water Well Driller (Occupations Code Ch.1901) and
a licensed Pump Installer (Ch.1902) for private wells.
Question 4: What is the minimum number of years of relevant experience required under
a licensed driller to qualify for a Texas well driller license?
A) 1 year
B) 2 years
C) 4 years
PRACTICE QUESTIONSCOMPLETE QUESTIONS & CORRECT
ANSWERS WITH RATIONALES (LATEST 2026 UPDATE)
TABLE OF CONTENTS
1. Texas Laws, Licensing & Regulations – Questions 132
2. Well Construction & Completion Standards – Questions 3355
3. Groundwater Science & Aquifer Behavior – Questions 5675
4. Drilling Methods & Equipment – Questions 7695
5. Water Quality, Safety & Environmental Protection – Questions 96120
6. Well Abandonment & Plugging – Questions 121140
7. General & ScenarioBased Questions – Questions 141150
,SECTION 1: TEXAS LAWS, LICENSING & REGULATIONS (Questions 132)
Question 1: Which Texas agency is primarily responsible for licensing water well
drillers?
A) Texas Commission on Environmental Quality (TCEQ)
B) Texas Department of Licensing and Regulation (TDLR)
C) Texas Water Development Board (TWDB)
D) Texas Railroad Commission
Answer: B) Texas Department of Licensing and Regulation (TDLR)
Rationale: TDLR oversees the licensing, continuing education, and enforcement for
water well drillers and pump installers under Texas law. The TWDB receives well logs
but does not license drillers.
,Question 2: What is the primary purpose of the Texas Administrative Code (TAC)
Chapter 76?
A) To regulate oil and gas drilling
B) To provide procedural and substantive requirements for licensing, complaint
procedures, continuing education, and technical standards for well drillers and pump
installers
C) To set water quality standards for municipal water systems
D) To regulate surface water rights
Answer: B) To provide procedural and substantive requirements for licensing, complaint
procedures, continuing education, and technical standards for well drillers and pump
installers
Rationale: The purpose of Chapter 76 is to ensure the quality of the State's groundwater
for the safety and welfare of the public under the Texas Occupations Code, Chapters
1901 and 1902.
Question 3: Under Texas Occupations Code, which chapters govern water well drillers
and pump installers?
, A) Chapters 1901 and 1902
B) Chapters 1001 and 1002
C) Chapters 2001 and 2002
D) Chapters 3001 and 3002
Answer: A) Chapters 1901 and 1902
Rationale: Texas requires a licensed Water Well Driller (Occupations Code Ch.1901) and
a licensed Pump Installer (Ch.1902) for private wells.
Question 4: What is the minimum number of years of relevant experience required under
a licensed driller to qualify for a Texas well driller license?
A) 1 year
B) 2 years
C) 4 years
