Demand and Supply Analysis as a Basis for Jakarta Water Provision Planning

Nila Ardhianie,Kismartini Kismartini,Purwanto Purwanto,T.R Soeprobowati,T Triadi Putranto,B Warsito

doi:10.1051/e3sconf/202131701101

Abstract

Water provision is a necessity to reduce the risk of coronavirus contamination. Delivering water and sanitation services is now more critical than ever; the hygiene requirements increased water need. It is expected to grow even after the pandemic as a healthier habit that will become a routine for most of the population. In addition, economic activity is predicted to expand once the pandemic is under control. To safeguard sustainable water provision, it is critical for Jakarta to have comprehensive planning based on careful calculation of demand and supply. This is especially valid as climate change adds the pressures to water availability that have long been experienced by the capital, such as pollution, high reliance on groundwater, huge water supply from outside the region, lack of infrastructure, land subsidence, floods, and land-use change. This study aims to estimate the demand and supply for Jakarta’s water comprehensively, cover all water sources inside and outside the capital, and develop a strategy based on the analysis produced. The strategy includes the need to focus on reducing, reusing and recycling approaches to local water available in Jakarta.

Highlights

Universal access to safe drinking water is a human right recognized by the United Nations Resolution 64/292 2010 [1]
Estimating the above method shows that Jakarta's water needs are 1.07 billion m3, and 34% of it is supplied by piped water using surface water (PAM Jaya) and the remaining 66% from groundwater
Demand management needs to be done through socio-political measures – the legal framework to promote the demand management measures and water conservation, public education, and awareness building

Summary

Introduction

Universal access to safe drinking water is a human right recognized by the United Nations Resolution 64/292 2010 [1]. Safe drinking water means "the water required for any personal or household use must be safe, free from microorganisms, chemicals, and radiological hazards that pose a threat to one's health," which is a vital human need; everyone must have access to safe drinking water. In Jakarta, most of the population still relies on groundwater without any processing for their daily needs. The heavy reliance on groundwater poses serious risks [2, 3, 4]. Jakarta's groundwater is prone to health problems, such as high Escherichia coli contamination

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