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Exam (elaborations)
ABC Practice Water Exam Questions And Answers!!
Total revenues divided by total operating expenses of a water utility - Answer-What is the operating ratio 
of a water utility? 
Population served - Answer-For community water systems, what is the basis for coliform monitoring 
frequency? 
Corrosion of lead and copper in plumbing materials - Answer-What is the main source of lead and 
copper in drinking water? 
Ensure that pathogenic organisms are removed and/or inactivated by the treatment processes - AnswerWhat is the purpose of the Surface Wa...
Exam (elaborations)
ABC Practice Water Exam Questions And Answers!!
PopularWhat is the operating ratio of a water utility? - Answer-Total revenues divided by total operating 
expenses of a water utility 
For community water systems, what is the basis for coliform monitoring frequency? - Answer-Population 
served 
What is the main source of lead and copper in drinking water? - Answer-Corrosion of lead and copper in 
plumbing materials 
What is the purpose of the Surface Water Treatment Rule? - Answer-Ensure that pathogenic organisms 
are removed and/or inactivated by th...
Exam (elaborations)
ABC Practice Water Exam Questions with 100% correct answers
Total revenues divided by total operating expenses of a water utility - correct answer What is the operating ratio of a water utility? 
 
Population served - correct answer For community water systems, what is the basis for coliform monitoring frequency? 
 
Corrosion of lead and copper in plumbing materials - correct answer What is the main source of lead and copper in drinking water?