This Maintenance Study presents reported instrumentation, control, and automation (IC & A) data received from surveyed water, wastewater, and industrial treatment facilities. In particular, this publication focuses on maintenance practices reported for the treatment process areas of disinfection and effluent. Online total and free chlorine residual analyzer technologies, calibration and maintenance practices, and reported effectiveness of performance and accuracy are analyzed. In addition, typical online total and free chlorine residual analyzer technological specifications; applications; and recommended calibration, maintenance and installation practices are discussed.

Discussions in this book center on proper management for quantity and quality of drinking water based on sophisticated surveillance and communication systems that help water utilities manage, treat, and deliver drinking water to consumers.

Memoranda of meeting of Commonwealth Law Ministers and Senior Officials held in Kingstown, St Vincent and the Grenadines, 81-21 November 2002.