Given the considerable threats pollution formalgae outbreaks pose to reservoir freshwater supply, the algal blooms leadto major problems in the supplies. This is causing a great distortion in themarine life, causing death of marine creatures and imbalance in theecosystem. This is done because of the leaking of nutrients (likephosphates and nitrates) from agricultural lands or industrial wastes. The excessfood supply in water causes the bloom because of the rapid reproduction ofalgae. Unfortunately, the bloom can take up the dissolved oxygen from waterwhich is an essential requirement to those living creatures in water. Regardingthese issues, we aim to develop a surface water monitoring robot that canconduct constant and comprehensive data collection in reservoirs. and takeimmediate actions in case of sudden pollution according to the basic standardsin water quality determination, especially those related to algal bloom. Typesof data gathered include: pH, dissolved oxygen (D.O) and water color by certainprecise sensors designed specially to act in water. the gathered data isthen sent to certain databases excluding them analytically by graphsand charts describing the relations between the concentration of algae andthe factors that cause them. After defining these factors, the robot will takeaction and start a device used to get rid of the algae and the nutrients inwater by chemical methods (coagulation) that use potassium aluminum sulfateKAI(SO4)2 which is proved in getting up the algae itself. Also. Barely straw isused as an ecofriendly solution to help stop the growth of algae. The prototypeconsists mainly of two parts: the electronic and the chemical parts. The firstpart consists of an Arduino board with sensors including pH, DO and a colorsensor. The chemical part contains the pumps and the reservoirs for thetreatment process. The coagulant is alum and the other material is the barelystraw. Sensors measuring is inserted, data is extracted and graphicallyrepresented finally, elements were put in the water to kill algae.A series of tests has been conducted to test such functions as real timesurface and underwater data collection. Our robot can optimize reservoirmanagement through constantly monitoring water quality, and provide extensivedata for reference in case of pollution outbreak, i a particular algae bloom. Furthermore,pictures of a certain place in which algal blooms usually occur are detectedusing a smart image analysis applications It is hoped that our robot will serveas a standard solution to preventing disruptive freshwater pollution andprotecting the Earth's precious water resources.