Indonesia oil slicks highlight weak enforcement against bilge dumping

first_imgArticle published by Basten Gokkon An environmental monitoring group has published reports saying that two ships have been pumping their waste oil out to sea, in a process known as bilge dumping, off the coast of Sumatra.The findings are based on a combination of satellite imagery of the slicks, which extend a total of 135 kilometers (84 miles), and tracking data from the ships.Activists say these findings highlight just how common bilge dumping is in Indonesian waters, and the lack of enforcement against the practice.Officials had not commented on the matter as of the time this story was published. JAKARTA — Two ships have been spotted allegedly dumping waste oil in the sea off the eastern coast of Sumatra, highlighting what activists say is poor enforcement against marine pollution violations in Indonesia.One of the vessels has been identified in a report published March 26 by the environmental monitoring group SkyTruth as the Perkasa, a cement carrier operated by Jakarta-based shipping company PT Indobaruna Bulk Transport. SkyTruth’s report showed it was trailing a slick of oil some 18 kilometers (11 miles) long northbound in the Malacca Strait as of Feb. 15.In a separate report, SkyTruth also reported possible bilge dumping on Jan. 8 near the northern tip of Indonesia’s Bangka-Belitung islands, located to the south of the Malacca Strait. It identified the Indonesian crude oil tanker Gamsunoro as the source of the slick, which stretched at least 117 kilometers (73 miles) when the researchers captured the image. The report didn’t name the operator of the tanker, which at the time was anchored near the town of Indramayu on the northern coast of the island of Java.The Malacca Strait, highlighted in blue, is flanked by the island of Sumatra and the Malay Peninsula. Image courtesy of Lozère via Wikimedia Commons (Public domain).The researchers said they regularly monitored the Malacca Strait, a narrow waterway between Sumatra and the Malay Peninsula, and one of the world’s busiest shipping lanes, which connects the Pacific and Indian oceans.“Due to the Strait’s high density of marine traffic of all types, oil spills — accidental and intentional — are likely to occur,” the latest report said.The researchers said they suspected the Perkasa was dumping its bilge, a typically intentional discharge of oily waste from ships to reduce ballast water or free up space in the cargo hold. To support their suspicions, they combined satellite images that detect slicks with vessel information broadcast via the radio-frequency automatic identification system, or AIS.“The ship’s predicted location closely matches the vessel’s position in the [satellite] image, and no other vessels broadcasting AIS were likely candidates for a match,” the researchers said in the report. “This leads us to infer that Perkasa is the vessel seen apparently discharging oily bilge waste in the satellite image.”The researchers also acknowledged the possibility of an accidental leak of fuel oil or other oily substances.“The best we can say is, based on our cumulative decades of experience analyzing thousands of satellite images for oil pollution, there is clearly a slick of oil or an oily substance emanating from a vessel that is visible on the satellite image,” John Amos, the SkyTruth founder, told Mongabay in an email.An overlay between satellite imagery showing the slick and vessel broadcast signals from the cement carrier Perkasa. Image courtesy of SkyTruth.SkyTruth has called for the vessel operator to explain the slick observed in the images.The Perkasa is registered with two classification societies: Biro Klasifikasi Indonesia and Nippon Kaiji Kyokai (ClassNK), both of which are supposed to monitor and regulate maritime safety and pollution prevention.Mongabay contacted both organizations as well the ship’s operator for comment, but only ClassNK replied. It confirmed that the Perkasa was registered with Tokyo-based ClassNK, but declined to answer questions regarding the allegation of bilge dumping.The SkyTruth report notes that ClassNK requires registered vessels to pass environmental performance for their operations in five areas, including water and waste. Ballast water, sewage or black water, garbage, sludge oils, and bilge water are covered under this category.Perkasa’s operator said it placed a “high priority in safety by adhering to policies, practices, and procedures” to ensure the safety of the environment.Amos said SkyTruth had identified several hotspots around the world where apparent bilge dumping was a routine occurrence, and the eastern approach to the Malacca Strait was one such hotspot.In Indonesia, bilge dumping is commonly practiced and highlights the poor monitoring by port, marine security, and law enforcement officials, said Arifsyah Nasution, oceans campaigner at Greenpeace Indonesia.Ahmad Baihaki, program manager at Global Fishing Watch-Indonesia, said the problem was particularly bad in the Bangka-Belitung islands, affecting both local beach resorts and the livelihoods of coastal communities.Arifsyah called on the government to launch an investigation based on the SkyTruth report to reveal the scale of the problem in the country and resolve it.“We know the government has quick access to information when there’s been an allegation of pollution, whether it’s a tip from local people or based on satellite technology,” he said. “But the response is still slow.“Improving vessel monitoring and checking at ports and sea is a great effort for prevention and law enforcement against bilge dumping in Indonesian waters,” Arifsyah added.Mongabay contacted the Ministry of Transportation’s head of sea transportation for comment, but none was forthcoming as of the time this story was published.An overlay between satellite imagery showing a slick and AIS broadcast points from the oil tanker Gamsunoro. Image courtesy of SkyTruth.Eelco Leemans, an adviser at the Clean Arctic Alliance, told Mongabay that the practice of dumping oily water in the open sea was illegal worldwide, as regulated by the International Convention for the Prevention of Pollution from Ships, or Marpol.“Oily water can only be pumped overboard if it is pumped through an oily-water separator,” Leemans said.But SkyTruth’s Amos said enforcement of this convention was “notoriously weak.” One solution, he said, could be to amend an existing international treaty on illegal fishing to also cover bilge dumping.“In general, it is the responsibility of the flag state to enforce the law and impose penalties,” he said. “[But] it will take an organized international effort to successfully address this problem.”Banner image of oil spill slick on a Singaporean beach courtesy of Ria Tan via Flickr (CC BY-NC-ND 2.0).FEEDBACK: Use this form to send a message to the author of this post. 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