Groundwater quality assessment for domestic purposes in Likupang National Tourism Strategic Area (KSPN), Indonesia
Agitya P. Tansil, Wahyu Wilopo, Fikri Abdurrachman

Department of Geological Engineering, Gadjah Mada University, Yogyakarta, Indonesia
Directorate General of Water Resources, Ministry of Public Works and Housing, Jakarta, Indonesia

Abstract

East Likupang as one of the regions in the development of the national tourism area in Indonesia must fulfill adequate tourism aspects, especially in clean water needs, both for tourism needs and for domestic purposes (hygiene and sanitation) for residents in the tourism area. The research was carried out by collecting 20 samples at 2 spring points and 18 groundwater wells spread throughout East Likupang District. Groundwater samples were evaluated based on the Indonesia Minister of Health Regulation No. 2 of 2023 on Implementing Regulations of Government Regulation No. 66 of 2014 on Environmental Health and analyzed with the main physicochemical parameters, such as e-Coli, total coliform, TDS, turbidity, pH, nitrite (NO2), chromium (Cr6+), iron (Fe) and manganese (Mn). Laboratory test results show that the majority of water samples at all spring and groundwater well sampling locations are not suitable to be used as a source of clean water. This can be seen from the results of microbiological parameter tests which do not meet existing standards. However, if we only refer to physical and chemical parameters, most of these groundwater sources are still suitable for use as water sources for domestic needs. These results indicate that villages, which are the main locations for tourism development, still have water access and water quality that is inadequate to support domestic water needs, both for tourism purposes.

Keywords: East Likupang, groundwater quality assessment, water contamination, physicochemical parameters, physical parameters, chemical parameters

Topic: Hydrology, hydrogeology, and geology engineering