Question 6025 of 229 · California Water Distribution Operator Exam
Under 22 CCR 64575, what is the minimum flushing velocity that must be maintained in a main?
Exactly one answer is correct.
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Correct answer to question 6025
- B: 2.5 feet per second
Explanation
22 CCR 64575(c) requires a flushing velocity of not less than 2.5 ft/s, and flushing valves and blowoffs on new mains are sized to produce at least 2.5 ft/s (Table 64575-A).
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