Awwa C651 14 Disinfecting Water Mains

This standard presents essential procedures for the disinfection of new and repaired potable water mains. Topics covered include forms of chlorine disinfection, a description of the disinfection procedure, preventive and corrective measures during construction, methods of chlorination, final flushing, bacteriological testing, redisinfection, final connections to existing mains, disinfection procedures when cutting into or repairing existing mains, and special procedures for caulked tapping sleeves. Appendixes cover chlorine residual testing, chlorine dosages, and disposal of heavily chlorinated water

This book presents a collection of Standards most relevant to small systems: (A100-97 Water Wells, B300-04 Hypochlorites, C651-05 Disinfecting Water Mains, C652-02 Disinfection of Water-Storage facilities, and G200-04 Distribution Systems Operation Management). The book provides the small systems with a convenient reference for the Standards most often used.

"The objective of this project was to identify and develop Good Practices that can realistically be implemented by water utilities for preventing microbiological contamination associated with the installation, rehabilitation, and repair of water mains." -- Executive summary.