Class D Water Operator License
Exam TCEQ questions and answers with solutions
2025/2026
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
The federal regulator of drinking water is the _____. - ANSWER EPA
T/F: Duties of distribution operator include repairing leaks, making taps,
flushing mains, and taking radiological samples. - ANSWER False (Repair
leaks, Make taps, Flush mains, Operate pumps, Take *bacteriological*
samples)
Exam TCEQ questions and answers with solutions
2025/2026
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
The federal regulator of drinking water is the _____. - ANSWER EPA
T/F: Duties of distribution operator include repairing leaks, making taps,
flushing mains, and taking radiological samples. - ANSWER False (Repair
leaks, Make taps, Flush mains, Operate pumps, Take *bacteriological*
samples)
