Overview
- Hikers reported the brightly discolored stream below the Lainbach waterfall around 12:40 on Saturday, and responders found the change still clearly visible on arrival.
- Police, the Kochel volunteer fire brigade, the district fire chief, the water authority in Weilheim, an ABC hazardous‑materials adviser, and the river master coordinated the response.
- Officials assessed the introduced substance as environmentally harmless, with no current danger to people, animals, or surrounding ecosystems.
- Responders located the likely entry point and collected water samples for laboratory analysis after the discoloration extended for several hundred meters downstream.
- The source remains unknown, the fire brigade ended operations after roughly 90 minutes, and the color was described as neon green or neon yellow in differing reports, with possible visibility at the Lainbach’s outlet into Kochelsee.