Indonesia takes on task of cleaning up 'world's dirtiest river'

30 million people rely on the Citarum for irrigation, washing and drinking water - including most residents of the capital

Environmental activist Deni Riswandani holds up cups of water from the Citarum river, right, and from a tributary which runs through an area densely populated with textile factories, left, where the two meet near Majalaya in Indonesia's West Java province. Darren Whiteside / ReutersShow less

The scabies on Indonesian rice farmer Yusuf Supriyadi's limbs are a daily reminder of the costs of living next to the "world's dirtiest river".

Mr Supriyadi depends on the Citarum's murky waters - a floating carpet of household rubbish, toxic chemicals and animal faeces - to irrigate a small rice plot in West Java that sustains his family of six.

The 54-year-old farmer's rice yield is now down by two-thirds in the rainy season as textile factories dump more and more industrial waste into the river. But he has few other options.

"There are floods during the rainy season. My hands get itchy and the harvest is damaged," he says.

"Pollution makes my rice hollow. If I keep going I'll lose money, but if I don't, I'll have no other job."

Farmer Yusuf Supriyadi walks between paddy fields and a factory in Majalaya, West Java. The Citarum river flowing through the area provides water for irrigation and human use but is also heavily polluted by local industries. Adek Berry / AFP

Now faced with a health emergency after decades of failed clean-up efforts, Jakarta is stepping in with a seemingly impossible goal: make the Citarum's water drinkable by 2025.

Using this polluted water is a risky calculation for many of the 30 million people who rely on it for irrigation, washing and even drinking water - including about 80 per cent of residents in the capital Jakarta.

At nearly 300 kilometres long, the river is also a key source for hydroelectric power for Indonesia's most populated island, Java, and tourism hotspot Bali.

The World Bank declared it the most polluted river in the world a decade ago, a description widely picked up by media and environmentalists.

Waste levels can vary depending on how pollution is measured and the time of the year.

But the Citarum is dangerous by almost any standard.

Previous research has shown it has alarming levels of toxic chemicals - including 1,000 times more lead than the US standard for safe drinking water.

It regularly appears on most-polluted lists alongside India's Ganges river, the Mississippi river in the United States and China's Yellow river.

In January, Jakarta yanked responsibility away from local government, and vowed to get tough on business owners who ignore waste-disposal rules.

Factories that fall short could have operating permits revoked.

And CCTV cameras are to be installed along the river's banks to keep an eye out for offenders dumping waste in the early morning hours to evade detection.

Meanwhile, dredging equipment will be used to clean up the river, says Djoko Hartoyo, a spokesman for the Ministry of Maritime Affairs.

"We are not playing around this time," he says.

"We're going in with a holistic approach so we are optimistic we can make Citarum clean again, just like it was 50 or 60 years ago."

In the 1980s, a new industrial zone sprang up around the small town of Majalaya, about 170 kilometres east of Jakarta, and things quickly changed for the pristine river.

Some 2,000 textile factories in the area have provided much-needed jobs, but at a heavy cost: about 280 tonnes of industrial waste are dumped into the river each day, according to government and environmental group data.

Making matters worse, many locals think nothing of tossing their household waste into its toxic waters.

"When it rains and my house gets flooded, the smell is awful," says Achmad Fachrureza as he navigates an inflatable dinghy through the river of styrofoam containers, fabric, empty cans, plastic bottles and rubbish bags.

The 57-year-old villager says he was sacked from his job as a textile factory security guard after asking questions about the firm's waste disposal system.

Factory pipes dump waste directly into waters bubbling with chemical dyes used in textiles, creating an overwhelming stench.

Environmental activist Deni Riswandani holds up cups of water from the Citarum river, right, and from a tributary which runs through an area densely populated with textile factories, left, where the two meet near Majalaya in Indonesia's West Java province. Darren Whiteside / Reuters

"Most factories here have a waste disposal system, but they don't work properly because it's just a formality," says Deni Riswandani from local environmental group Elingan.

That poses a serious health risk, especially for the five million people living in the river's basin.

Many locals suffer from skin diseases such as scabies and dermatitis, as well as respiratory infections from inhaling factory pollution.

"The number of people going to the health clinic is very high," Mr Riswandani says.

"We keep reporting these issues to the government, but we never get a solution."

He and other frustrated activists have blocked some waste pipes with rocks and concrete, but the factories usually remove the blockage right away.

Locals hope Jakarta's new goals can be achieved. But they are also sceptical given the scale of the task and endemic corruption that could see factory owners try to buy their way out of trouble.

"I long to see the Citarum like it was when I was young," Mr Fachrureza says.

"I could swim in it and drink the water. It was so clean."

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