Question 6002 of 229 · California Water Distribution Operator Exam
Why are coliform bacteria tested for in drinking water?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 6002
- D: They are indicator organisms that suggest contamination
Explanation
Coliforms are easier to test for than specific pathogens and show a pathway for contamination. A positive result triggers repeat sampling.
More questions: Water Quality and Water Sources
- 6003A positive E. coli result in a drinking water sample indicates what?
- 6004What does a presumptive coliform test result tell you?
- 6005Why do bacteriological sample bottles contain sodium thiosulfate?
- 6006Which sampling technique helps avoid contaminating a coliform sample?
- 6007What is the maximum holding time for a total coliform sample before analysis?
- 6008What does a heterotrophic plate count (HPC) indicate?