Title: HydroWatch: IoT Based Water Quality Monitoring System


Authors: Aniruddh Chaturvedi, Harshita Paliwal, Himanshu Sheetlani, Ishika Sethiya, Nisha Rathi, Ashish Anjana


Published in: Volume 3 Issue 1 Jan June 2026, Page No. 105-108


Keywords: ESP32, pH sensor, TDS sensor, turbidity sensor, temperature sensor, Google Firebase, React JS, Node JS, JWT, Tailwind CSS, IoT, CPS


Abstract: Stagnant water storages are dangerous as they are highly vulnerable to contamination and microbe growth thus requiring constant checkups to prevent public health concerns as around 250 people fell ill in a society of Greater Noida and several deaths in Rajouri due to contamination in water tanks. HydroWatch presents a Water Quality Monitoring system designed to safeguard public health by continuously analyzing stagnant water in storage tanks, detecting anomalies, and ensuring prompt notification to the authorities. The solution works using a clear methodology: first, small sensors collect the data, and then smart computer programs check it. First, data is collected using a small, battery-friendly computer connected to sensors put straight into the water tank. These sensors measure four important things: Total Dissolved Solids (TDS), Temperature, pH, and Turbidity. Next, the data travels wirelessly to a database. The system uses Machine Learning, smart computer programs to study data. When an anomaly is found, the system automatically sends a warning and a report. The water quality data can be seen on a website dashboard. Only authorized people can see this information using a secure login (token-based authentication). The solution prevents waterborne diseases and allows clean and usable water usage among communities. HydroWatch ensures immediate anomaly detection and guarantees robust public health protection through secure, real-time alerting.


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