Title

Persistent Pockets of Low Chlorine Residual in New York City's Drinking Water Distribution System: A Case Study

Document Type

Article

Publication Date

10-4-2019

Publication Title

Journal American Water Works Association

Volume

111

Issue

40

First page number:

40

Last page number:

50

Abstract

Pockets of low chlorine residual have been found in New York City’s water distribution system, with fluctuating water demand resulting from the seasonal operation of local institutions. Variations of the chlorine residual profiles in one such pocket were found through both field and laboratory investigations. Once the cast-iron pipe was replaced with ductile-iron pipe in the study area, an acceptable chlorine residual was usually maintained; when low chlorine residuals were observed, low-velocity flushing remediated the situation.

Disciplines

Civil Engineering | Water Resource Management

Language

English

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