曾任污水处理厂技术员的何涛等5人,将6500吨含有多种重金属和大量污染物的污水处理厂污泥,倾倒进北京地下水水源保护区的门头沟区永定镇上岸村的大砂坑,经评估污染损失达上亿元。2010年10月22日上午,北京门头沟法院对这起京城环保第一大案做出一审判决,法院判决认为,何涛、刘永祥等5人的行 He Tao, a former wastewater treatment plant technician and other 5 people, dumps 6,500 tons of sewage sludge containing various heavy metals and large amounts of pollutants into Dasankeng of Shangding Pit, Shangding Village, Yongding Town, Mentougou District, Beijing Groundwater Source Protection Area, After the assessment of pollution losses of 100 million yuan. On the morning of October 22, 2010, the Mentougou court in Beijing made a verdict of first instance on the first major case of environmental protection in Beijing. According to the court ruling, the judgment of He Tao, Liu Yongxiang and other five people