TCEQ Class D Water Operators License
Community - Correct Answer-System has potential to serve at least 15 residential
service connections on a year-round basis or serve at least 25 full time residents on a
year round basis.
nontransient noncommunity - Correct Answer-System serves at least 25 of the SAME
people who do not live at that location at least 6 months out of the year.
Transient non-community - Correct Answer-Public water system serves at least 25
persons of a transient nature at least 60 days out of the year.
Maximum Daily Demand can be determined - Correct Answer-From monthly operating
reports or by multiplying 2.4 times the average daily demand on the system.
130 - Correct Answer-Utilities that provide fire protection have to have a minimum of
____ Gallons per person per day
75% - Correct Answer-Commercial, Industrial, and Agricultural Use makes up _____ %
in Texas
57% - Correct Answer-Agricultural use accounts for _____% of total water consumed in
Texas
97% - Correct Answer-_____% of the total volume of water available is saltwater
Water Covers _______ of the earth's Surface - Correct Answer-75%
Humans can only live ________ days without water - Correct Answer-4-5 Days
1% - Correct Answer-3% of total volume of water available is considered fresh water.
2% is locked in polar icecaps and glaciers. ____% of all water on earth is accessible
fresh water.
Electrodialysis Reversal (EDR) - Correct Answer-Electrochemical separation process in
which saline water passes through alternately placed cations and anion membranes.
reverse osmosis - Correct Answer-A desalinization process that involves forcing salt-
water through a membrane permeable to water but not to salt
2000 - Correct Answer-Excluding outside use, the average household uses about
_____ gallons of water per month on inside use
Community - Correct Answer-System has potential to serve at least 15 residential
service connections on a year-round basis or serve at least 25 full time residents on a
year round basis.
nontransient noncommunity - Correct Answer-System serves at least 25 of the SAME
people who do not live at that location at least 6 months out of the year.
Transient non-community - Correct Answer-Public water system serves at least 25
persons of a transient nature at least 60 days out of the year.
Maximum Daily Demand can be determined - Correct Answer-From monthly operating
reports or by multiplying 2.4 times the average daily demand on the system.
130 - Correct Answer-Utilities that provide fire protection have to have a minimum of
____ Gallons per person per day
75% - Correct Answer-Commercial, Industrial, and Agricultural Use makes up _____ %
in Texas
57% - Correct Answer-Agricultural use accounts for _____% of total water consumed in
Texas
97% - Correct Answer-_____% of the total volume of water available is saltwater
Water Covers _______ of the earth's Surface - Correct Answer-75%
Humans can only live ________ days without water - Correct Answer-4-5 Days
1% - Correct Answer-3% of total volume of water available is considered fresh water.
2% is locked in polar icecaps and glaciers. ____% of all water on earth is accessible
fresh water.
Electrodialysis Reversal (EDR) - Correct Answer-Electrochemical separation process in
which saline water passes through alternately placed cations and anion membranes.
reverse osmosis - Correct Answer-A desalinization process that involves forcing salt-
water through a membrane permeable to water but not to salt
2000 - Correct Answer-Excluding outside use, the average household uses about
_____ gallons of water per month on inside use
