All of the domestic area’s wastewater will be dumped into surrounding aquatic bodies, causing pollution. Chemicals and germs found in sewage water can cause significant sickness. Pathogens and bacteria found in domestic sewage handle a variety of ailments. We know that untreated water can contribute to the spread of malaria-causing microorganisms in an area. Domestic sewage is a vital source of plant nutrients, but it can also cause water contamination if it is not cleaned.