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Chlorine is added to the treated water as part of water disinfection. The added chlorine reacts with natural organic matter producing disinfection by-products (DBPs). DBPs are harmful and some of them are even carcinogenic. When distance is long and/or water is stagnant, eg, high amount of DBPs is produced. For example, during night, a majority of the free residual chlorine (FRC) reacts with NOM generating a high level of DBPs [1]. The first portion of the water coming from the WDN in the next morning has level of DBPs. So, a real-time monitoring of FRC and DBPs in WDNs is required and the level should be communicated to the end users for avoiding the direct use of that portion of water. A cloud Internet of Things (Cloud IoT) can be used for this purpose.

Cloud IoT is one of the most trending Information and Communication Technology (ICT) solutions that have the capability to entirely transform WDN and provide a holistic solution. The solution is smart, real-time, and cyberenabled. This technology significantly imparts network-based connectivity to everyday electrical and mechanical components (called “Things”) and mutate them into cyber-physical entities, which have the capability to communicate and connect with each other and higher hierarchy system. In 1999, Kevin Austin, introduced the concept of Internet of things and soon after different industrial and academic research groups started exploring the concept and highlighted its application in multiple sectors [2]. Further, the integration of IoTs with cloud computing platform, enhanced its computational and ambient intelligence ability to provide a dedicated platform to interact, monitor …