Page 1 of 72
,Page 2 of 72
TCEQ Class D Water Operator License Exam
Questions & Answers (Verified), 100%
Guaranteed Pass ||Complete A+ Guide
1. What is the minimum age to apply for a TCEQ Class D
Water Operator license?
✅ Answer: 18 years
📘 Rationale: TCEQ requires all license applicants to be at
least 18 years old.
🔧 Scenario: A 17-year-old has completed training. They
cannot apply until their 18th birthday.
2. How many hours of TCEQ-approved training are required
for Class D initial license?
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✅ Answer: 30 hours
📘 Rationale: Class D requires 30 hours of approved core and
general water training.
3. What is the primary role of a Class D operator?
✅ Answer: Operate a small water system under supervision
📘 Rationale: Class D is entry-level for systems serving ≤ 250
connections or ≤ 500 people.
4. How often must a Class D license be renewed?
✅ Answer: Every 3 years
📘 Rationale: TCEQ water operator licenses renew triennially.
5. How many continuing education units (CEUs) are needed for
renewal?
✅ Answer: 6 CEUs (60 hours)
📘 Rationale: 2 CEUs per year × 3 years = 6 CEUs.
, Page 4 of 72
6. Who is responsible for daily chlorine residual checks in a
k k k k k k k k k
small system?
k k
✅ Answer: The Class D operator
k k k k k
📘 Rationale: Class D operators perform routine operational
k k k k k k k
checks.
k
7. Whatisa“sanitarysurvey”? k k k k
✅Answer:Anon-siteinspectionofwater system components
k k k k k k k k
📘Rationale:TCEQconductssanitarysurveystoevaluate
k k k k k k k
compliance.
k
8. Howoftenmustacommunitywatersystemhaveasanitary
k k k k k k k k k
k survey?
✅Answer: Every 3 years (for small systems)
k k k k k k k
📘 Rationale: Larger systems may be every 5 years; small
k k k k k k k k k
systemsevery3.
k k k
9. What document defines required chlorine residuals and
k k k k k k
sampling locations?
k k
,Page 2 of 72
TCEQ Class D Water Operator License Exam
Questions & Answers (Verified), 100%
Guaranteed Pass ||Complete A+ Guide
1. What is the minimum age to apply for a TCEQ Class D
Water Operator license?
✅ Answer: 18 years
📘 Rationale: TCEQ requires all license applicants to be at
least 18 years old.
🔧 Scenario: A 17-year-old has completed training. They
cannot apply until their 18th birthday.
2. How many hours of TCEQ-approved training are required
for Class D initial license?
,Page 3 of 72
✅ Answer: 30 hours
📘 Rationale: Class D requires 30 hours of approved core and
general water training.
3. What is the primary role of a Class D operator?
✅ Answer: Operate a small water system under supervision
📘 Rationale: Class D is entry-level for systems serving ≤ 250
connections or ≤ 500 people.
4. How often must a Class D license be renewed?
✅ Answer: Every 3 years
📘 Rationale: TCEQ water operator licenses renew triennially.
5. How many continuing education units (CEUs) are needed for
renewal?
✅ Answer: 6 CEUs (60 hours)
📘 Rationale: 2 CEUs per year × 3 years = 6 CEUs.
, Page 4 of 72
6. Who is responsible for daily chlorine residual checks in a
k k k k k k k k k
small system?
k k
✅ Answer: The Class D operator
k k k k k
📘 Rationale: Class D operators perform routine operational
k k k k k k k
checks.
k
7. Whatisa“sanitarysurvey”? k k k k
✅Answer:Anon-siteinspectionofwater system components
k k k k k k k k
📘Rationale:TCEQconductssanitarysurveystoevaluate
k k k k k k k
compliance.
k
8. Howoftenmustacommunitywatersystemhaveasanitary
k k k k k k k k k
k survey?
✅Answer: Every 3 years (for small systems)
k k k k k k k
📘 Rationale: Larger systems may be every 5 years; small
k k k k k k k k k
systemsevery3.
k k k
9. What document defines required chlorine residuals and
k k k k k k
sampling locations?
k k
