Water quality condition of Sani river as source of drinking water of PDAM Tirta Bening in Pati Regency

摘要

Sani river is one of the rivers in Pati Regency, provided as the drinking water source by PDAM Tirta Bening. The people’s activities inhabit along the Sani river affect its water quality. The purpose of this study was 1) analyzed the quality of the Sani river water, and 2) evaluated the status of the Sani river water quality. The data used was the 2018 Sani river water quality data obtained from the Environmental Services of Pati Regency. The study's location was represented by selected three monitoring points, i.e., upstream, middle, and downstream areas of the Sani river, such as the Seloromo reservoir, Sidokerto village, and Gilis hamlet. For knowing the river water quality level, it was necessary to compare the river water quality data with the Indonesia Government Regulation (PP) No. 82/2001. The Sani river water quality status was analyzed using the pollution index method according to the Decree of the Minister of Environment No. 115/2003. In conclusion, the Sani river water quality status in such the- study site was classified as slightly polluted and moderate polluted.