Rivers play an essential role as vital water sources with roles spanning sanitation,
hygiene, drinking, and agriculture, particularly in rural areas. However, Kabupaten Sleman's
river water quality, including its Kabupaten Sleman region in Yogyakarta, has severely degraded
due to pollution from solid and liquid sources. Chemical contaminants have rendered the water
unsafe, posing health risks. The primary objective of this study is to evaluate the water quality
in the rivers of Bedog and Sembung located in Kabupaten Sleman. This evaluation utilizes Water
Quality Criteria from the Republic of Indonesia Government Regulations Number 82 of 2001,
alongside assigned weights. The research employs a diverse range of methodologies, including
in-depth literature analysis, meticulous field observation, interviews, and comprehensive water
quality assessment. A Decision Support System is adeptly employed as a strategic tool to grapple
with the intricate facets inherent in the issue, thereby formulating pragmatic resolutions that
facilitate judicious decision-making across diverse contexts. In addressing the dimension of
water quality for communities along the Bedog and Sembung rivers, the study seamlessly
integrates the SMART (Simple Multi-Attribute Rating Technique) approach. SMART's agility
in steering multi-attribute decisions expedites the decision-making process. SMART's
computational outcomes yield values of 0.304 and 0.395 for the Bedog and Sembung Rivers,
respectively, both falling within the 0 to 0.49 range. This collective conclusion indicates that
neither river meets the criteria for clean water quality, making it unsuitable for activities like
sanitation, hygiene, drinking, and agriculture. The study underscores the urgency of rectifying
river water quality, particularly in urban settings, to ensure safe and sustainable water sources
for communities. The seamless integration of SMART as a decision-making tool amplifies the
potential for effective interventions in navigating water quality management complexities.