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Penilaian Kualitas Air Dari Mata Air Sebagai Sumber Air Baku Untuk Air Minum Di Kecamatan Singosari Kabupaten Malang Siswoyo, Hari; Haribowo, Riyanto; Prabandari, Ni Luh Putri; Permata, Veronika Yulia; Kurniawan, Joko
Jurnal Teknik Sipil Vol 20 No 2 (2024): Jurnal Teknik Sipil
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jts.v20i2.6006

Abstract

Some residents in the Singosari District, Malang Regency use the potential of springs as raw water for drinking water. One of the main aspects that must be considered in exploiting the potential of springs is the feasibility of the quality of the water. The quality of the water used by residents is not necessarily identified. This research was carried out with the aim of providing an assessment of the feasibility of water quality from springs as a source of raw water for drinking water. The object of this research was 12 springs spread across the Singosari District. Physico-chemical parameters used as the basis for assessing water quality include pH, TDS, nitrate (NO3–), turbidity, iron (Fe), chloride (Cl–), manganese (Mn), sulfate (SO42–), ammonia (NH3), and sodium (Na+). The water quality from springs is assessed by using a water quality index model. The water quality index value of the springs studied has a range of 8.80 – 41.13. There are 10 springs with very good water quality category and 2 springs with good water quality category.
PRIORITIZING FLOOD MITIGATION IN VILLAGES AFFECTED BY THE PALASARI DAM BREAK USING TOPSIS Prabandari, Ni Luh Putri; Pariartha, I Putu Gustave Suryantara; Tonyes, Silvia Gabrina
Journal of Infrastructure Planning and Engineering 10-15
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.1.2025.10-15

Abstract

Dam collapse is a disaster that has the potential to have a significant impact on communities in downstream areas. This study aims to determine priorities for handling villages affected by flooding due to the collapse of the Palasari Dam in Jembrana Regency, Bali, using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) method. The data used was obtained from the results of hazard classification analysis based on InaSAFE software which includes four main parameters, namely the area of inundation, length of affected roads, number of affected buildings and number of affected populations. Each parameter is grouped by village and given a weight based on the principle of disaster vulnerability by placing life safety as the main priority. The results of the analysis show that the villages of Nusasari, Candikusuma, and Tuwed are the villages with the highest treatment priority, each with a preference value of 0.760; 0.605; and 0.524. The TOPSIS method has proven effective in combining spatially based quantitative data to support objective and systematic disaster mitigation decision making. This research also provides a basis for preparing a more adaptive Emergency Action Plan (EAP).