Class D Water Operator License Exam
TCEQ 2025/2026 Exam Questions and
Answers | 100% Solved
T/F: In Texas, about 75% of all water is used for commercial, industrial, or
agricultural purposes. - 🧠 ANSWER ✔✔True
Water covers approximately ________ of Earth's surface. - 🧠 ANSWER ✔✔71%
Drought is an extended period when a region receives a deficiency in its ________
water supply. - 🧠 ANSWER ✔✔atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used for drinking and
cooking - 🧠 ANSWER ✔✔True
Excluding outside water use, the average household uses about _______ gallons of
water per month for inside use - 🧠 ANSWER ✔✔2,000
,T/F: Only 3% of all the fresh water on earth can be easily accessed for use. - 🧠
ANSWER ✔✔False (only 1%)
T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the
Safe Drinking Water Act from the EPA. - 🧠 ANSWER ✔✔True
T/F: PWS officials should be pro-active in their approach to terrorism. - 🧠
ANSWER ✔✔True
_________ permits the owner of a well to pump as much water as desired, even if
the water is drained from beneath the land of others. - 🧠 ANSWER ✔✔Rule of
Capture
In Texas, agricultural water demand accounts for about ___% of the total water
used. - 🧠 ANSWER ✔✔57%
T/F: An example of a non-transient non-community PWS is a rural school. - 🧠
ANSWER ✔✔True
Monitoring average and maximum daily water ______ enables us to plan ahead for
growth. - 🧠 ANSWER ✔✔Demand
, T/F: The Safe Drinking Water Act sets standards for drinking water including
physical, chemical, bacteriological, and radiological characteristics. - 🧠 ANSWER
✔✔True
"Potable" means water is safe to drink and has a measurable chlorine ________. - 🧠
ANSWER ✔✔Residual
The plant operator is responsible for a sufficient supply of safe and ________
drinking water. - 🧠 ANSWER ✔✔Palatable
T/F: The Texas State Board of Fire Insurance requires utilities that provide fire
protection to have a minimum amount of water available based on 30 gals per
person per day. - 🧠 ANSWER ✔✔False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ. - 🧠 ANSWER
✔✔True
T/F: All community and non-transient non-community PWS, regardless of source
of water, must be under the supervision of a licensed water works operator. - 🧠
ANSWER ✔✔True
Meter readers bring in operating revenue and profoundly impact _____ relations. -
🧠 ANSWER ✔✔Public
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
TCEQ 2025/2026 Exam Questions and
Answers | 100% Solved
T/F: In Texas, about 75% of all water is used for commercial, industrial, or
agricultural purposes. - 🧠 ANSWER ✔✔True
Water covers approximately ________ of Earth's surface. - 🧠 ANSWER ✔✔71%
Drought is an extended period when a region receives a deficiency in its ________
water supply. - 🧠 ANSWER ✔✔atmospheric, ground, or surface
T/F: Only about 1 gallon of tap water per person/day is used for drinking and
cooking - 🧠 ANSWER ✔✔True
Excluding outside water use, the average household uses about _______ gallons of
water per month for inside use - 🧠 ANSWER ✔✔2,000
,T/F: Only 3% of all the fresh water on earth can be easily accessed for use. - 🧠
ANSWER ✔✔False (only 1%)
T/F: In 1978, the Texas Department of Health (TDH) assumed primacy over the
Safe Drinking Water Act from the EPA. - 🧠 ANSWER ✔✔True
T/F: PWS officials should be pro-active in their approach to terrorism. - 🧠
ANSWER ✔✔True
_________ permits the owner of a well to pump as much water as desired, even if
the water is drained from beneath the land of others. - 🧠 ANSWER ✔✔Rule of
Capture
In Texas, agricultural water demand accounts for about ___% of the total water
used. - 🧠 ANSWER ✔✔57%
T/F: An example of a non-transient non-community PWS is a rural school. - 🧠
ANSWER ✔✔True
Monitoring average and maximum daily water ______ enables us to plan ahead for
growth. - 🧠 ANSWER ✔✔Demand
, T/F: The Safe Drinking Water Act sets standards for drinking water including
physical, chemical, bacteriological, and radiological characteristics. - 🧠 ANSWER
✔✔True
"Potable" means water is safe to drink and has a measurable chlorine ________. - 🧠
ANSWER ✔✔Residual
The plant operator is responsible for a sufficient supply of safe and ________
drinking water. - 🧠 ANSWER ✔✔Palatable
T/F: The Texas State Board of Fire Insurance requires utilities that provide fire
protection to have a minimum amount of water available based on 30 gals per
person per day. - 🧠 ANSWER ✔✔False (130 gals per person per day)
T/F: The primary state regulator of water utilities is the TCEQ. - 🧠 ANSWER
✔✔True
T/F: All community and non-transient non-community PWS, regardless of source
of water, must be under the supervision of a licensed water works operator. - 🧠
ANSWER ✔✔True
Meter readers bring in operating revenue and profoundly impact _____ relations. -
🧠 ANSWER ✔✔Public
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
