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US regulations on residual disinfection
Author(s) -
Shaw Susan E.,
Regli Stig
Publication year - 1999
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1999.tb08571.x
Subject(s) - disinfectant , residual , water quality , environmental science , distribution (mathematics) , surface water , environmental engineering , business , environmental planning , computer science , mathematics , chemistry , ecology , mathematical analysis , organic chemistry , algorithm , biology
Preserving distribution system water quality and protecting public health depend on regulations as well as a whole‐system approach. Most community water systems in the United States disinfect their water. However, only surface water systems are currently required to provide a disinfectant residual in the distribution system. This article reviews existing regulations, including the Surface Water Treatment Rule and the Total Coliform Rule, for maintaining a disinfectant residual and outlines their requirements. It also discusses forthcoming and long‐term regulations and how they may affect water treatment and distribution system water quality, operations, and maintenance.