7人被问责！杭州通报“余杭自来水异味”调查情况

Core Viewpoint - The investigation into the water supply anomaly in Yuhang District, Hangzhou, revealed that the issue was caused by a combination of environmental factors, including high temperatures and algal blooms, leading to the presence of sulfur compounds in the water supply [1][14]. Group 1: Water Quality Investigation - The investigation identified sulfur compounds as the source of the abnormal odor in the water, which can occur at low concentrations [1]. - The water quality tests showed that aside from the odor and taste indicators being abnormal, other harmful bacteria were not detected in the water samples [14]. - After switching the water source, the water quality indicators returned to normal by 13:30 on July 16, and subsequent tests confirmed compliance with national drinking water standards [14][15]. Group 2: Emergency Response and Management - The emergency response was initiated after the detection of abnormal odor levels at 8:30 AM on July 16, with water source switching completed by 9:20 AM [3][4]. - There were delays in communication and action from the water management authorities, which contributed to the situation worsening [16]. - A total of seven officials were held accountable for their roles in the inadequate response to the water quality issue [17]. Group 3: Public Service and Community Response - The local government has taken steps to address public concerns, including cleaning water tanks and providing health services to affected residents [18]. - Residents affected by the water quality issues will have their water bills waived for July, and free replacements for water filter cartridges will be provided [18]. - The government expressed apologies for the inconvenience caused and committed to improving water safety measures and emergency response protocols [18].