Analisis Debit Andalan Sungai Mandau Pada Titik Jembatan Sungai Mandau (Jalan…

ABSTRACT The Mandau River is a tributary of the Siak River and plays a vital role in providing clean water, supporting irrigation, and sustaining the ecosystem in the Bengkalis and Siak regencies. This study aims to analyze the dependable flow (Q90) of the Mandau River at the Mandau River Bridge point as a basis for sustainable water resources planning. The method used is the Mock method, …