Group 1 - A large amount of household waste was illegally dumped in a valley in Lancang County, Yunnan Province, with the incident being exposed by a video posted online [1][3] - Local authorities mobilized over 80 personnel and specialized equipment to clean up the waste, successfully removing over 40 truckloads of garbage to a landfill located 40 kilometers away [3][5] - The area of the waste dumping site is approximately 600 square meters, larger than a standard basketball court, and despite the removal of the garbage, a strong odor remains [5] Group 2 - The slope where the waste was dumped has a steep gradient of 60 to 70 degrees and a depth of over 60 meters, necessitating road construction to facilitate further cleanup efforts [7] - The company responsible for waste management, Lancang County Zhutang Township Bazhi Comprehensive Market Co., Ltd., has been dumping waste in this location for over a decade, totaling around 5,000 tons [9] - The dumped materials primarily consist of household waste, but medical waste such as needles, infusion tubes, and bottles were also found [11] Group 3 - The bottom of the valley may contain a cave or fissure, and during rainy seasons, leachate from the waste could flow into this space, posing a risk of high organic pollution and heavy metals [13] - Local environmental authorities have begun continuous monitoring of the outflow direction in the valley, but groundwater monitoring is currently not feasible due to ongoing construction [13] - The long-term impact of the waste dumping on the surrounding ecological environment and water safety remains a concern, with ongoing attention required for ecological restoration efforts [15]

Group 1 - The meeting emphasized the importance of addressing feedback from the Central Ecological and Environmental Protection Supervision, viewing it as a major political task [1][2] - The focus is on implementing Xi Jinping's ecological civilization thoughts and ensuring a better environment for the people of Gansu [1] - Key areas of action include scientific water usage, land regulation, energy conservation, ecological governance, ecological safety, and forest fire prevention [2] Group 2 - The "Four Waters and Four Determinations" principle will be strictly enforced to enhance water conservation across agriculture, industry, urban areas, and ecology [2] - A systematic approach to ecological governance will be adopted, integrating the protection of mountains, rivers, forests, fields, lakes, grasslands, and deserts [2] - Specific measures will be taken to address illegal waste disposal, heavy metal pollution, and to ensure the safety of the ecological environment [2]