Occurred on November 22, 2019 / Novo Mesto, Slovenia
Info from Licensor: "At around 10am, we noticed that our stream, which goes around our house, started producing foam around the dam. We called the police and firefighters, they were searching the cause of pollution, and they said it was some kind of an industrial soap, not very toxic for fish, but still not acceptable for the nature. It took 2 days for the foam to finally vanish."