TCEQ Class D Water Operators License Questions
and Answers| 100% Solved
Transient non-community Public water system serves at least 25 persons of a transient
nature at least 60 days out of the year.
2 years Records Kept Required: amount of chemicals used, volume of water treated,
complaint log, dead-end line flushing, cleaning records of water storage tanks
3 years Records Kept Required: notices of violation, public notices, distribution
disinfectant residual tests, turbidity monitoring results, instrument calibration records, back flow
prevention assembling testing forms
5 years Records Kept Required: microbiological analysis results, water storage tank
inspection reports, consumer confidence reports or CCR
10 years Chemical analysis of treated water, monthly operating report MOR , sanitary
survey inspection reports CCI, customer service inspection records
percolate To drip into the ground recharging aquifers
15 The state recommends ________ color units or less for drinking water.
deeper The _______ the well, the warmer the water
, heavier Cold water is _________ than warm water
Turbidity Suspended matter in water
0.3 NTU or less at least 95% of the time. Can never exceed 1.0 NTU. TCEQ requires a
combined filter effluent (CFE) turbidity of
Hardness Dissolved salts of calcium and magnesium cause ______ in water
True True/False: The threshold odor number (TON) relates to the number of dilutions
needed for the water to be tasteless
3 The state recommends a TON of _______ or less
interchangeable The terms mg/L and ppm are ________
Total Coliform group To avoid having to test a water sample for all diseases, a certain
group of bacteria is used to indicate the possible presence of a pathogen - THE _____
>10 mg/l ; >1 mg/L Levels of Nitrate and Nitrite that put infants under 6 months of age
and pregnant women at risk of "blue baby" syndrome.
and Answers| 100% Solved
Transient non-community Public water system serves at least 25 persons of a transient
nature at least 60 days out of the year.
2 years Records Kept Required: amount of chemicals used, volume of water treated,
complaint log, dead-end line flushing, cleaning records of water storage tanks
3 years Records Kept Required: notices of violation, public notices, distribution
disinfectant residual tests, turbidity monitoring results, instrument calibration records, back flow
prevention assembling testing forms
5 years Records Kept Required: microbiological analysis results, water storage tank
inspection reports, consumer confidence reports or CCR
10 years Chemical analysis of treated water, monthly operating report MOR , sanitary
survey inspection reports CCI, customer service inspection records
percolate To drip into the ground recharging aquifers
15 The state recommends ________ color units or less for drinking water.
deeper The _______ the well, the warmer the water
, heavier Cold water is _________ than warm water
Turbidity Suspended matter in water
0.3 NTU or less at least 95% of the time. Can never exceed 1.0 NTU. TCEQ requires a
combined filter effluent (CFE) turbidity of
Hardness Dissolved salts of calcium and magnesium cause ______ in water
True True/False: The threshold odor number (TON) relates to the number of dilutions
needed for the water to be tasteless
3 The state recommends a TON of _______ or less
interchangeable The terms mg/L and ppm are ________
Total Coliform group To avoid having to test a water sample for all diseases, a certain
group of bacteria is used to indicate the possible presence of a pathogen - THE _____
>10 mg/l ; >1 mg/L Levels of Nitrate and Nitrite that put infants under 6 months of age
and pregnant women at risk of "blue baby" syndrome.
