TY - JOUR N2 - Aluminium slag waste is a residue from aluminium recycling activities, classified as hazardous waste so its disposal into the environment without processing can cause environmental problems, including groundwater pollution. There are 90 illegal dumping areas for aluminium slag waste spread in the Sumobito District, Jombang Regency. This study aims to evaluate the quality of shallow groundwater surrounding aluminium slag disposal in the Sumobito District for drinking water. The methods applied an integrated water quality index ( WQI) and heavy metal pollution index ( HPI), multivariate analysis (principal component analysis (PCA) and hierarchical clustering analysis (HCA)), and geospatial analysis for assessing groundwater quality. The field campaign conducted 40 groundwater samples of the dug wells for measuring the groundwater level and 30 of them were analysed for the chemical contents. The results showed that some locations exceeded the quality standards for total dissolved solids ( TDS), electrical conductivity (EC), and Al 2+. The WQI shows that 7% of dug well samples are in poor drinking water condition, 73% are in good condition, and 20% are in excellent condition. The level of heavy metal contamination based on HPI is below the standard limit, but 13.3% of the water samples are classified as high contamination. The multivariate analysis shows that anthropogenic factors and natural sources/geogenic factors contributed to shallow groundwater quality in the study area. The geospatial map shows that the distribution of poor groundwater quality is in the northern area, following the direction of groundwater flow, and is a downstream area of aluminium slag waste contaminants. L1 - http://www.czasopisma.pan.pl/Content/127186/PDF/2023-02-JWLD-08.pdf L2 - http://www.czasopisma.pan.pl/Content/127186 PY - 2023 IS - No 57 EP - 90 DO - 10.24425/jwld.2023.145338 KW - aluminium slag waste KW - geospatial analysis KW - heavy metal pollution index KW - multivariate analysis KW - water quality index A1 - Putranto, Thomas Triadi A1 - Febriane, Wenny PB - Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute DA - 2023.05.19 T1 - Evaluation of groundwater in aluminium slag disposal area SP - 78 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/127186 T2 - Journal of Water and Land Development ER -