The Use of Qual2KW to Analyze the Concentration of pH, Nitrate, Phosphate, and Fecal Coliform on Water Quality: A Case Study of the Klampok River, Semarang Regency

Usually, the main source of water is a river, which makes it essential to ensure that from not polluted and in accordance with quality standards. Water can deteriorate as result domestic industrial waste. This measured based on several parameters, such concentration pH, nitrate, phosphate, fecal coliform water. QUAL2KW be used analyze river order solve quality-related problems. The Semarang Regency Klampok River, whose support agriculture, livestock, other activities. study aims determine above-mentioned parameters samples River using QUAL2KW. are obtained different six points chi-square test for validation. From laboratory results river-quality after being simulated validated method, concluded belongs class II. These reference by government managing quality.