WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA). EXAM 2025 QUESTIONS AND ANSWERS

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WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA). EXAM 2025 QUESTIONS AND ANSWERS

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2025/2026

Institution WATER TREATMENT OPERATOR

Course WATER TREATMENT OPERATOR

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A continuously flowing watercourse - ANS Perennial Stream Algae causes PH to ....... at night - ANS Decrease What contributes to creation of algae blooms - ANS Increased nutrients Iron is found mostly in what sources of water - ANS Groundwater Also called the rule of reasonable sharing - ANS Riparian Doctrine Water high in salinity and warm is - ANS Low in dissolved oxygen Reservoir turnover - ANS Denser water at surface sinking toward the bottom Water that flows into rivers after rainfall - ANS Surface runoff WATER TREATMENT OPERATOR CERTIFICATION STUDY GUIDE (AWWA). EXAM 2025 QUESTIONS AND ANSWERS @COPYRIGHT @THEBRIGHT 2025/2026 Page2 Recreation can ....... of land adjacent to a reservoir - ANS increase the threat of erosion Water bearing geological zone composed of material deposited by flowing rivers - ANS Alluvial aquifer What effect will algae have on dissolved oxygen - ANS Increase DO during the day and lower DO during the night How does alkalinity effect the use of copper sulfate - ANS Copper sulfate is more effective as alkalinity decreases The amount of water in a formation depends on..... - ANS The porosity of the water-bearing formation What enables blue green algae to grow - ANS Nutrients Recommended loading rate of copper sulfate for algae control - ANS 5.4 lbs per acre of surface area Primary origin of coliform bacteria - ANS Animal or human feces Amount of water a well produces for each foot of drawdown - ANS Specific capacity Most common well used in public water supply - ANS Drilled well What is disinfection -

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WATER TREATMENT OPERATOR
CERTIFICATION STUDY GUIDE
(AWWA). EXAM 2025 QUESTIONS AND
ANSWERS

A continuously flowing watercourse - ANS Perennial Stream

Algae causes PH to ....... at night - ANS Decrease

What contributes to creation of algae blooms - ANS Increased nutrients

Iron is found mostly in what sources of water - ANS Groundwater

Also called the rule of reasonable sharing - ANS Riparian Doctrine

Water high in salinity and warm is - ANS Low in dissolved oxygen

Reservoir turnover - ANS Denser water at surface sinking toward the bottom
1

Water that flows into rivers after rainfall - ANS Surface runoff
Page

@COPYRIGHT @THEBRIGHT 2025/2026

, Recreation can ....... of land adjacent to a reservoir - ANS increase the threat of erosion

Water bearing geological zone composed of material deposited by flowing rivers -
ANS Alluvial aquifer

What effect will algae have on dissolved oxygen - ANS Increase DO during the day and lower
DO during the night

How does alkalinity effect the use of copper sulfate - ANS Copper sulfate is more effective as
alkalinity decreases

The amount of water in a formation depends on..... - ANS The porosity of the water-bearing
formation

What enables blue green algae to grow - ANS Nutrients

Recommended loading rate of copper sulfate for algae control - ANS 5.4 lbs per acre of
surface area

Primary origin of coliform bacteria - ANS Animal or human feces

Amount of water a well produces for each foot of drawdown - ANS Specific capacity

Most common well used in public water supply - ANS Drilled well

What is disinfection - ANS inactivation or killing of pathogenic organisms
2
Page

@COPYRIGHT @THEBRIGHT 2025/2026

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Uploaded on: September 12, 2025
Number of pages: 7
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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