Water Treatment Operator Certification Study Guide (AWWA)
Study online at https://quizlet.com/_6qsx0
1. A continuously flowing watercourse Perennial Stream
2. Algae causes PH to ....... at night Decrease
3. What contributes to creation of algae blooms Increased nutrients
4. Iron is found mostly in what sources of water Groundwater
5. Also called the rule of reasonable sharing Riparian Doctrine
6. Water high in salinity and warm is Low in dissolved oxygen
7. Reservoir turnover Denser water at surface
sinking toward the bottom
8. Water that flows into rivers after rainfall Surface runoff
9. Recreation can ....... of land adjacent to a reservoir increase the threat of ero-
sion
10. Water bearing geological zone composed of material Alluvial aquifer
deposited by flowing rivers
11. What effect will algae have on dissolved oxygen Increase DO during the
day and lower DO during
the night
12. How does alkalinity effect the use of copper sulfate Copper sulfate is more ef-
fective as alkalinity de-
creases
13. The amount of water in a formation depends on..... The porosity of the wa-
ter-bearing formation
14. What enables blue green algae to grow Nutrients
1/6
, Water Treatment Operator Certification Study Guide (AWWA)
Study online at https://quizlet.com/_6qsx0
15. Recommended loading rate of copper sulfate for algae 5.4 lbs per acre of surface
control area
16. Primary origin of coliform bacteria Animal or human feces
17. Amount of water a well produces for each foot of draw- Specific capacity
down
18. Most common well used in public water supply Drilled well
19. What is disinfection inactivation or killing of
pathogenic organisms
20. free chlorine residual valus are based on a contact time 10 minutes
of....
21. Strength of Calcium Hypochlorite 65-70%
22. What chemicals raise PH in water Soda Ash, Caustic Soda,
23. As water temp increases, disinfection action....... Increases
24. Maximum chlorine usage per day from a 150lb cylinder 42 lbs
25. What chemical is used to soften water through chem- Calcium hydroxide (lime)
ical precipitation
26. Mudballs are clumps of........ Filter media and other ma-
terial
27. Coagulation occurs during the first ..... 1 to 5 seconds
28. When should a filter be backwashed
2/6
Study online at https://quizlet.com/_6qsx0
1. A continuously flowing watercourse Perennial Stream
2. Algae causes PH to ....... at night Decrease
3. What contributes to creation of algae blooms Increased nutrients
4. Iron is found mostly in what sources of water Groundwater
5. Also called the rule of reasonable sharing Riparian Doctrine
6. Water high in salinity and warm is Low in dissolved oxygen
7. Reservoir turnover Denser water at surface
sinking toward the bottom
8. Water that flows into rivers after rainfall Surface runoff
9. Recreation can ....... of land adjacent to a reservoir increase the threat of ero-
sion
10. Water bearing geological zone composed of material Alluvial aquifer
deposited by flowing rivers
11. What effect will algae have on dissolved oxygen Increase DO during the
day and lower DO during
the night
12. How does alkalinity effect the use of copper sulfate Copper sulfate is more ef-
fective as alkalinity de-
creases
13. The amount of water in a formation depends on..... The porosity of the wa-
ter-bearing formation
14. What enables blue green algae to grow Nutrients
1/6
, Water Treatment Operator Certification Study Guide (AWWA)
Study online at https://quizlet.com/_6qsx0
15. Recommended loading rate of copper sulfate for algae 5.4 lbs per acre of surface
control area
16. Primary origin of coliform bacteria Animal or human feces
17. Amount of water a well produces for each foot of draw- Specific capacity
down
18. Most common well used in public water supply Drilled well
19. What is disinfection inactivation or killing of
pathogenic organisms
20. free chlorine residual valus are based on a contact time 10 minutes
of....
21. Strength of Calcium Hypochlorite 65-70%
22. What chemicals raise PH in water Soda Ash, Caustic Soda,
23. As water temp increases, disinfection action....... Increases
24. Maximum chlorine usage per day from a 150lb cylinder 42 lbs
25. What chemical is used to soften water through chem- Calcium hydroxide (lime)
ical precipitation
26. Mudballs are clumps of........ Filter media and other ma-
terial
27. Coagulation occurs during the first ..... 1 to 5 seconds
28. When should a filter be backwashed
2/6
