Class A Water Operator (2025) comprehensive questions and verified
Class A Water Operator
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1. How many Training Hours and 16 Hours Training and No Experience
experience for a class D Water
Operator
2. How many Training Hours and 36 Hours Training and 1 year Experience
experience for a class C Water
Operator
3. How many Training Hours and 100 Hours Training and 3 years Experience (must include 1
experience for a class B Water year of hands on experience)
Operator
4. How many Training Hours and 200 Hours Training and 5 years Experience (must include 2
experience for a class A Water years of hands on experience)
Operator
5. How many Training Hours and 32 Hours and no experience
experience for a Class C Lab Op-
erator
6. How many Training Hours and 32 hours of C and 32 hours of B and 6 months experience.
experience for a Class B Lab Op- ***associate in science can substitute 32hrs of C level train-
erator ing
7. How many Training Hours and 32 hours of B and 1 year experience. ***Must include a
experience for a Class A Lab Op- Bachelor in science
erator
8. How many Training Hours and 36hours and 1 year experience
experience for a Class C Distrib-
ution Operator
9. 8 hours and no training.
, Class A Water Operator
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How many Training Hours and
experience for a Distribution
Technician
10. Community Water System A public water supply that has at least 15 service connec-
tions or serves 25 or more persons on a regular basis
11. Primary Contaminants Contaminants identifies by the EPA as harmful to umal
health
12. Maximum Containment Level The level in which contaminants must not exceed or public
(MCL) notification is required.
13. Cryptosporidium A microsocpic parasite that can be found in water. It pro-
duces cysts that are very resistant to harsh environmental
conditions. It is responsible for intestinal illness called cryp-
tosporidiosis. Symptoms include diarrhea, cramps, gas,
bodily discomfort, fatigue, and weight loss. Occurs one
week after exposure and can last for 1-4 weeks
14. Disinfection Profiling A water system assesses the level of disinfection current-
ly provided and then determines the impact a proposed
change in disinfection practice would have.
15. E. coli A bacterium that is commonly used as an indicator of hu-
man health risk from harmful micro organisms that can
be present in water. Symptoms include sever cramps and
diarrhea. Blood is often seen in the stool. Symptoms begin
1-9 days after exposure and last a week or less.
16. Giardia A microscopic parasite that can be found in water. It pro-
duces cysts that are resistant to harsh environmental con-
ditions. Giardia causes intestinal illness called giardiasis.
, Class A Water Operator
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Symptoms simular to cryptosporidiosis. Vomition, chills,
headache and fever may also occur. Symptoms begin one
week after exposure and can last up to a month.
17. Hard Water A characteristic of water caused mainly by the salts of cal-
cium (Ca++) and magnesium (Mg++). Undesirable due to
formation of soap curds, increase use of soap, and scale
deposits in boilers and water heaters. Defines as having
hardness of 100mg/L or greater
18. Maximum Residual Disinfectant The highest level of disinfectant allowed in drinking water.
Level (MDRLs) Standards set by the US EPA
19. Microbial Pathogens Micro-organisms that cause disease
20. Safe Drinking Water Act (SDWA) An Act passed by the US Congress in 1974. It establishes a
cooperative program among local, state, and federal agen-
cies to ensure safe drinking water for customers.
21. Ch 1 - One gallon of water 8.34 pounds
weighs
22. Ch 1- The average domestic wa- 100-130 gallons
ter usage per person per day is
usually somewhere in the range
of
23. Ch 1 -Probably the most im- Lab Results
portant source of information
to use when implementing
changes in process control at a
water plant is
24. Help to protect the health and well-being of the community
Class A Water Operator
detailedStudy
solutions ALREADY A+ GRADED HIGHLY
online at https://quizlet.com/_hdr99e
RECOMMENDED|100% CORRECT!!
1. How many Training Hours and 16 Hours Training and No Experience
experience for a class D Water
Operator
2. How many Training Hours and 36 Hours Training and 1 year Experience
experience for a class C Water
Operator
3. How many Training Hours and 100 Hours Training and 3 years Experience (must include 1
experience for a class B Water year of hands on experience)
Operator
4. How many Training Hours and 200 Hours Training and 5 years Experience (must include 2
experience for a class A Water years of hands on experience)
Operator
5. How many Training Hours and 32 Hours and no experience
experience for a Class C Lab Op-
erator
6. How many Training Hours and 32 hours of C and 32 hours of B and 6 months experience.
experience for a Class B Lab Op- ***associate in science can substitute 32hrs of C level train-
erator ing
7. How many Training Hours and 32 hours of B and 1 year experience. ***Must include a
experience for a Class A Lab Op- Bachelor in science
erator
8. How many Training Hours and 36hours and 1 year experience
experience for a Class C Distrib-
ution Operator
9. 8 hours and no training.
, Class A Water Operator
Study online at https://quizlet.com/_hdr99e
How many Training Hours and
experience for a Distribution
Technician
10. Community Water System A public water supply that has at least 15 service connec-
tions or serves 25 or more persons on a regular basis
11. Primary Contaminants Contaminants identifies by the EPA as harmful to umal
health
12. Maximum Containment Level The level in which contaminants must not exceed or public
(MCL) notification is required.
13. Cryptosporidium A microsocpic parasite that can be found in water. It pro-
duces cysts that are very resistant to harsh environmental
conditions. It is responsible for intestinal illness called cryp-
tosporidiosis. Symptoms include diarrhea, cramps, gas,
bodily discomfort, fatigue, and weight loss. Occurs one
week after exposure and can last for 1-4 weeks
14. Disinfection Profiling A water system assesses the level of disinfection current-
ly provided and then determines the impact a proposed
change in disinfection practice would have.
15. E. coli A bacterium that is commonly used as an indicator of hu-
man health risk from harmful micro organisms that can
be present in water. Symptoms include sever cramps and
diarrhea. Blood is often seen in the stool. Symptoms begin
1-9 days after exposure and last a week or less.
16. Giardia A microscopic parasite that can be found in water. It pro-
duces cysts that are resistant to harsh environmental con-
ditions. Giardia causes intestinal illness called giardiasis.
, Class A Water Operator
Study online at https://quizlet.com/_hdr99e
Symptoms simular to cryptosporidiosis. Vomition, chills,
headache and fever may also occur. Symptoms begin one
week after exposure and can last up to a month.
17. Hard Water A characteristic of water caused mainly by the salts of cal-
cium (Ca++) and magnesium (Mg++). Undesirable due to
formation of soap curds, increase use of soap, and scale
deposits in boilers and water heaters. Defines as having
hardness of 100mg/L or greater
18. Maximum Residual Disinfectant The highest level of disinfectant allowed in drinking water.
Level (MDRLs) Standards set by the US EPA
19. Microbial Pathogens Micro-organisms that cause disease
20. Safe Drinking Water Act (SDWA) An Act passed by the US Congress in 1974. It establishes a
cooperative program among local, state, and federal agen-
cies to ensure safe drinking water for customers.
21. Ch 1 - One gallon of water 8.34 pounds
weighs
22. Ch 1- The average domestic wa- 100-130 gallons
ter usage per person per day is
usually somewhere in the range
of
23. Ch 1 -Probably the most im- Lab Results
portant source of information
to use when implementing
changes in process control at a
water plant is
24. Help to protect the health and well-being of the community
