AL Water Projects Practice Questions - Alabama Water Projects Contractor Examination Exam

Which sequence correctly describes disinfection of a new water main following AWWA C651 concepts?

Set meters first, then disinfect if customers complain Pressure test after customers are connected, with no sampling Flush, apply the specified disinfection method, hold for the required contact time, flush, then collect bacteriological samples Paint the interior of PVC pipe with tank enamel instead of disinfecting

Correct Answer:

Flush, apply the specified disinfection method, hold for the required contact time, flush, then collect bacteriological samples

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