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![An employee at a coffee shop in Seo District, Incheon, on Thursday uses bottled water to make an Americano. The city is struggling to deal with larvae contamination in the water supply, a year after tap water was tainted due to mishandling at a treatment facility in June last year. [YONHAP]](https://image.koreajoongangdaily.com/10023543.jpg?imageId=10023543&width=240&height=184&format=webp&format=jpg)