This document outlines procedures for disinfecting water mains as part of an addition, modification, replacement, extension, planned maintenance, or emergency repair in a municipal residential drinking water system. The procedures are required to be followed in order to satisfy conditions imposed by the Director in a drinking water works permit. With respect to new watermains, relined watermains and temporary watermains, the provisions of this document, including sections 1. Service pipes of mm diameter and greater shall be considered as watermains for the purposes of this procedure. Operating authorities shall use Certified Operators for functions that must be performed by a Certified Operator. The requirements in this section also apply to temporary watermains.
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Some rush fees may apply. Add to Cart. View Full Details and Buy. Complementary Documents and Links:. This standard describes essential procedures for the disinfection of new and repaired potable water mains. New water mains shall be disinfected before they are placed in service.
Water mains taken out of service for inspection, repair, or other activities may or may not require disinfection and sampling, depending on the risk of contamination. This standard described the process for evaluating the risk under different conditions. This standard is meant to be used for water mains within public water systems and is not intended for premise plumbing systems in buildings. Premise plumbing components in building use a wide variety of materials, including some that may not be compatible with the chlorine concentrations in this standard.
Purpose The purpose of this standard is to define the minimum requirements for the disinfection of water mains, including the preparation of water mains, application of chlorine, and sampling and testing for the presence of coliform bacteria. Browse Publishers. Top Sellers. My Account. Corporate Sustainability.
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Watermain disinfection procedure
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AWWA C651-05 Disinfecting Water Mains