Core Insights - The article highlights the ongoing efforts in a province of the Yangtze River Delta to enhance ecological risk prevention facilities for enterprises and parks, yet identifies significant issues in the management of secondary wastewater, particularly from firefighting runoff [1][2] Group 1: Current Challenges - Secondary wastewater, primarily from firefighting runoff, is a major contributor to water pollution during ecological emergencies [1] - Despite emergency measures like closing rainwater valves, there are still instances of firefighting runoff being discharged into rivers, leading to environmental damage [1][2] - Many enterprises lack adequate control measures for firefighting runoff in their emergency response plans, often oversimplifying the approach to just closing rainwater outlets [2] Group 2: Infrastructure Issues - Aging and damaged pipeline infrastructure in some enterprises increases the risk of firefighting runoff leakage, as there are often unsealed outlets and abandoned pipelines [2] - The design capacity of emergency pools and pipelines in certain enterprises is insufficient to handle the large volumes of firefighting runoff generated during emergencies [2] - Various structural weaknesses, such as gaps in factory gates and cracks in walls, can serve as pathways for firefighting runoff to escape [2][3] Group 3: Recommendations for Improvement - It is essential to strengthen the control of firefighting runoff at the source by conducting comprehensive risk assessments and identifying weaknesses in emergency response capabilities [2] - Enterprises should be encouraged to upgrade their pipeline systems and increase the capacity of emergency pools to better manage firefighting runoff [2] - A collaborative approach between ecological environment departments and firefighting units is recommended to enhance risk prevention capabilities and ensure effective emergency response [3]