Russian destruction of the Kakhovka dam flooded around 620 km² of land between the 6th and 9th June, including 333,000 hectares of protected areas, 10,000 hectares of agricultural land and more than 11,000 hectares of forests. More than 14.7 km³ of water was released, affecting 80 settlements along the Dnipro and its tributaries and directly impacting 100,000 people. 10 settlements on the occupied left bank were most severely affected with Oleshky and Hola Prystan remaining flooded for more than a month.
More than 1,000 potential pollution sources were inundated by floodwaters, including fuel storage and transit infrastructure – a large oil spill occurred in Komyshany when an oil pipeline was damaged. Numerous chemical, industrial and agro-industrial sites were also affected, such as the major shipbuilding and port complex in Kherson. Waste was mobilised from landfills, sewage facilities and properties. In Oleshky alone, flooding affected cemeteries, tailings piles and 37,000 homes. 11 Minefields and at least 47 military positions were flooded, dispersing military pollutants and transporting unexploded ordnance. The dam itself was also a pollution source, discharging around 150 of the 450 tonnes of fuel oil it was thought to have held.
The huge water volumes caused flooding and physical changes to the ecologically sensitive wetlands in the lower Dnipro. In the Black Sea, the rapid outflow of polluted freshwater impacted coastal and marine ecosystems.
Agriculture rapidly began to be affected, impacting livelihoods. The reservoir had been a source of drinking water for one million people; emergency water trucking, well drilling and costly pipeline construction was launched to restore supplies.
https://ceobs.org/ukraine-damage-map-kakhovka-hydropower-plant/