Qualla: Citarum River

Citarum River: Introduction

Thu, 26 Mar 2026 00:00:00 GMT

Photo credit Unknown author, CC BY-SA 3.0. The prefix "Ci" in Sundanese simply means water, which makes the Citarum's full name redundant -- the Water Tarum River. But redundancy is the least of this waterway's problems. Flowing 297 kilometres from the volcanic highlands south of Bandung to the Java Sea, the Citarum is the longest river in West Java, the lifeblood of roughly 25 million people, and the source of 80 percent of their surface water. It also carries more than 20,000 tons of solid waste and 340,000 tons of industrial wastewater into its current every single day. In 2008, the Asian Development Bank approved a $500 million loan to clean it up and, in doing so, attached a label that has followed the river ever since: the world's dirtiest.

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Image: Unknown author | CC BY-SA 3.0

Citarum River: Kingdom of Indigo

Thu, 26 Mar 2026 00:00:00 GMT

Photo credit Unknown author, CC BY-SA 3.0. Long before the pollution, the Citarum nurtured one of Southeast Asia's earliest Hindu kingdoms. The word "tarum" is Sundanese for the indigo plant, and the 4th-century Tarumanagara kingdom took its name directly from the river that sustained it. Stone inscriptions, Chinese trade...

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Image: Unknown author | CC BY-SA 3.0

Citarum River: Three Dams, One Lifeline

Thu, 26 Mar 2026 00:00:00 GMT

Photo credit No machine-readable author provided. Hullie assumed (based on copyright claims)., CC BY 2.5. Modern Java depends on the Citarum in ways its ancient inhabitants could never have imagined. Three massive hydroelectric dams -- Saguling, Cirata, and the Jatiluhur -- straddle the river, generating electricity for both Bandung and the greater Jakarta metropolitan area. The Jati...

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Image: No machine-readable author provided. Hullie assumed (based on copyright claims). | CC BY 2.5

Citarum River: A River Buried Alive

Thu, 26 Mar 2026 00:00:00 GMT

Photo credit G.F.J. (Georg Friedrich Johannes) Bley (Fotograaf/photographer)., CC BY-SA 3.0. About five million people live in the Citarum's drainage basin, which covers nearly 7,000 square kilometres. More than 2,000 industrial operations -- textile factories in Bandung and Cimahi chief among them -- pour lead, mercury, arsenic, and a cocktail of chemical compounds into...

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Image: G.F.J. (Georg Friedrich Johannes) Bley (Fotograaf/photographer). | CC BY-SA 3.0

Citarum River: Soldiers in the Current

Thu, 26 Mar 2026 00:00:00 GMT

Photo credit Aditia candra kusuma, CC BY-SA 4.0. Revitalization efforts began in November 2011 with an estimated price tag of 35 trillion rupiah -- roughly $4 billion -- spread over 15 years and 180 kilometres of river from Mount Wayang through eight regencies and three cities. Progress was slow until February 2018, when Presid...

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Image: Aditia candra kusuma | CC BY-SA 4.0