ANALISIS KEANDALAN DEBIT SUNGAI CISANGKUY

• Main Author: Edwar, Nauval
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/34467
• Institution: Institut Teknologi Bandung

Cisangkuy River is one of the most frequently used river both in Bandung District and Bandung City. Cisangkuy river becomes the main source of raw water for the PDAM Tirtawening that supplies water for 69.30% of Bandung citizen, and also for some irrigation areas and companies that depend on the water of the river. For consideration of water utilization and management of the river, it is necessary to determine the actual minimum discharge. This research discusses about reliability discharge of Cisangkuy river by using the river?s data during 14 years. Reability discharge that being used is discharge that exceeded 50% time percentage. The minimum extreme discharge that occurs in the Kamasan and Pataruman point is also determined. The Weibul formula using annual and partial duration series is used for methodology. The results indicate that reliability discharge at Pataruman point is 7,12 m3/s, and Kamasan point is 8,67 m3/s. The average minimum discharge by annual series is 3.33 m/s for Pataruman point and 2.61 m/s for Kamasan point. As for the extreme conditions of low flow using partial duration series during 90 days and 10 years return period (90Q10) is 1,386 m/s Pataruman point and 0.698 m/s Kamasan point.