CLASS D WATER OPERATOR
LICENSE EXAM TCEQ 2025
QUESTIOSN AND ANSWERS
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%)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 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
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, 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)
A service area has 1000 service connections. What can we estimate the population
of this service area to be? - ....ANSWER ...-3,000 (multiply connections x 3)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
LICENSE EXAM TCEQ 2025
QUESTIOSN AND ANSWERS
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%)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 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
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
, 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)
A service area has 1000 service connections. What can we estimate the population
of this service area to be? - ....ANSWER ...-3,000 (multiply connections x 3)
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 3
