Question 1027 of 229 · California Water Distribution Operator Exam
What is the main cause of disinfection byproducts such as trihalomethanes in a distribution system?
Exactly one answer is correct.
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Correct answer to question 1027
- A: Chlorine reacting with natural organic matter
Explanation
Natural organic matter (TOC) is the precursor, and the longer the water age and the higher the temperature, the more DBPs form. Reducing precursors and water age lowers them.
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