A Simple Method of Water Balance Analysis to Predict the Performance of Water Resource Management in the Unit of South Kalimantan Province Offices

Novitasari Novitasari; Kurdi Holdani; Muhammad  Azhar; Elfrida  Widyanti; Ratri  Handayanti; Muhammad  Hafizh Azhari

Novitasari Novitasari Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia
Holdani Kurdi Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia
Muhammad Azhar Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia
Elfrida Widyanti Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia
Ratri Handayanti Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia
Muhammad Hafizh Azhari Civil Engineering Study Program, Faculty of Engineering, Lambung Mangkurat University. Jl. A. Yani Km. 35, 8 Kalimantan Selatan, Indonesia

Keywords: water availability, water demand, water balance, water resources management, government official offices, South Kalimantan

Abstract

Banjarbaru city was legally established as the capital city of Kalimantan Selatan province, and it needed a new unit of government offices. In the new unit offices of 500 ha, the government built not only office facilities but also a small reservoir or Embung. This study aims to analyze the availability of water upstream of the Embung that can be provided to fulfill urban water demand in the service area with a simple method of water balance. The conclusions obtained from this research on a simple method of water balance analysis to predict the performance of water resource management in the unit of South Kalimantan province offices based on water available in upstream Embung in the year 2020 as 133,090,606.2 liter/day to fulfill water demands in service area as 87,478,894.55 liter/day after Embung construction is still quite adequate as much as 45,611,711.64 liter/day. Although until now, PDAM Intan Banjar still provides sufficient water to meet water needs in the service area. The construction of the reservoir is one of the methods applied by the South Kalimantan provincial government in managing water resources for conservation in the future. With the increase in the population in the future, it is necessary to think about other water sources to meet the water needs due to population growth.

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