Results of Raw Water Quality Test at Condong Catur, Yogyakarta Special Region

The existing phenomenon is that groundwater in the UPN Veteran Yogyakarta integrated campus complex smells and has a reddish-brown color, and when the water is used for bathing, the skin becomes dry. Based on this phenomenon, it is assumed that the groundwater contains quite high levels of iron (Fe) and Manganese (Mn). The purpose of this research is to determine the quality of bore well water and determine the method of processing the well water so that it can be used as clean water that meets the requirements of Permenkes Number: 492/Menkes/Per/IV/2010 Water quality is a qualitative condition of a water sample taken from the source which is measured and/or tested based on certain parameters and certain methods based on predetermined test standards and is in effect at the time of the test. According to the standards stipulated in the Regulation of the Minister of Health of the Republic of Indonesia Number: 492/Menkes/Per/IV/2010 concerning Water Quality Control and Requirements, water quality testing parameters are generally grouped into 3 (three) parameters, namely: physical parameters, chemistry, and biology. In the laboratory tests carried out for samples of raw water from drilled well water sources at the UPN Veteran Yogyakarta Integrated Campus, the test parameters are taken are Physical parameters, including examination of odor, turbidity, taste, color, amount of dissolved solids (TDS); and Chemical Parameters, including examining pH, iron, fluoride, hardness, manganese, nitrate, nitrite. The results showed that the well water in the integrated campus complex area of UPN Veteran Yogyakarta has water quality parameters with levels of TDS, temperature, taste, odor, pH, fluoride, hardness, and nitrate, which are still below the threshold for hygienic water quality standards and drinking water quality standards. . Meanwhile, other water quality parameters, namely levels of Turbidity, Color, Iron, Manganese and Nitrite have levels above the standard threshold for hygienic water quality and drinking water. Therefore, to use well water as for hygienic water that meets the Permenkes No. 492/Menkes/Per/IV/2010 standards, filtration must first be done using a slow sand filter as an alternative to the filter model.