At 18:00 on May 5th, the monitoring station of Guangyuan City Environmental Monitoring Center found that the water quality of the off-surface area of Jialing River entering Sichuan was abnormal, and the water quality of the water source of Xiwan water plant exceeded 4.6 times (the national surface water environmental quality standard was 0.0001 thousand/L). After the incident, the relevant departments of Guangyuan city and the environmental protection department of Sichuan province responded quickly, actively responded and scientifically dealt with the river pollution incident. As of 16:00 on May 8, the analysis of comprehensive monitoring data and expert consultation results speculated that the inbound water quality of Sichuan-Shaanxi border had reached the standard steadily, and there was no new input of pollution sources in the upstream.
Provincial Environmental Protection Department: encrypted monitoring emergency working group attacked in the early morning
At 22:25 on May 5, 2017, Sichuan environmental emergency and accident investigation center received a telephone report from Guangyuan Municipal Environmental Protection Bureau that thallium in Xiwan water plant, the drinking water source of Guangyuan city, exceeded 4.1 times (200 meters upstream of the water intake point), at the same time, the water samples retained by routine monitoring of surface water on May 4, which entered Sichuan fault area in Hanzhong city, Shaanxi province were monitored, and thallium exceeded 10.1 times.
Guangyuan fire brigade sends domestic water to schools, hospitals, residential areas and other units. Sichuan network radio and television station map
After receiving the report from the provincial environmental protection department, director Yu Huiwen attached great importance to the abnormal water quality in Guangyuan and immediately made arrangements.
First, please ask Guangyuan environmental protection bureau to scientifically and reasonably set up monitoring sections in Jialing River (Guangyuan section) to carry out emergency encryption monitoring, so as to provide strong support for the development, judgment and scientific disposal of events, and in conjunction with relevant departments to carry out investigation work on enterprises involved in the jurisdiction;
Secondly, it is suggested that Guangyuan municipal government organize experts from all sides to demonstrate scientifically and properly handle it to ensure the safety of people’s drinking water;
Thirdly, the emergency working group of Yao Dongsheng rate, who is in charge of the department, is invited to rush to the scene immediately to guide the emergency response work and coordinate the matters related to the inter-provincial environmental emergency response;
Fourth, report the progress of emergency disposal to provincial Party committee and provincial government and Ministry of Environmental Protection in time according to procedures, and request Ministry of Environmental Protection to urge Shaanxi province to carry out emergency monitoring and pollution source investigation and disposal.
In the early morning of May 6, the emergency working group of the provincial environmental protection department immediately carried out relevant disposal work after arriving at the emergency headquarters of Guangyuan city. First, it immediately analyzed and judged the pollution situation with the municipal government and relevant departments, and require Guangyuan municipal government to take effective measures to ensure the safety of drinking water for the masses; Second, environmental supervision law enforcement personnel carefully guide and participate in on-site investigation of pollution sources in groups; Third, environmental monitoring personnel guide environmental emergency monitoring work, provide technical support for incident response and disposal; Fourth, environmental emergency experts comprehensively analyze relevant situations, conduct scientific research and judgment on emergency disposal work, and put forward relevant work suggestions to Guangyuan emergency headquarters.
Positive action: investigation within 20 kilometers of upstream and downstream
On the afternoon of May 6, Feng Xiaobo, deputy director of the environmental emergency and accident investigation center of the Ministry of Environmental Protection, organized relevant local governments and environmental protection departments of Sichuan and Shaanxi provinces to hold a coordination and promotion meeting on emergency handling. At the meeting, Sichuan’s emergency work was fully affirmed: quick action, powerful measures and obvious results. And put forward the following requirements:
First, Guangyuan should organize research to make full preparations for restoring water supply;
The second is to continue to strengthen environmental monitoring and timely adjust and optimize the emergency monitoring plan according to the monitoring data;
Third, the investigation was carried out plus-sized. Sichuan and Shaanxi provinces could organize a joint investigation team to conduct the investigation within 20 kilometers of the border between Sichuan and Shaanxi in the Jialing River basin;
The fourth is to strengthen communication and cooperation between upstream and downstream, consult regularly, and strengthen linkage.
Emergency treatment: scientific monitoring and emergency investigation of pollution sources
After the incident, Guangyuan municipal Party committee and municipal government attached great importance to it. Mayor Zou Zijing and Vice Mayor Wu Guihua presided over the emergency response meeting at 23:11 on the 5th and 01:13 on the 6th to study emergency response measures.
First, Guangyuan city quickly started the emergency plan according to the procedure, scientifically set monitoring points for encrypted monitoring, and reported to Hanzhong municipal government in Shaanxi province in writing, requiring Hanzhong municipal government to carry out emergency monitoring and pollution source investigation in Hanzhong.
Second, the municipal housing and construction bureau takes the lead and actively prepares for emergency water supply; The public security bureau takes the lead and cooperates with the municipal environmental protection bureau to comprehensively investigate the pollution sources along the upper reaches of Jialing River basin, and at the same time sends a special team to Ningqiang county in Shaanxi province to carry out relevant work. As of 14:00 on May 6, 6 tributaries of rivers were investigated, 178 enterprises along the river, 5 mining enterprises and 4 key units such as hospitals were investigated, and no pollution sources were found.
Third, the municipal housing and construction bureau and the municipal environmental protection bureau jointly released the “Report on emergency handling of thallium exceeding the standard in the water quality of Jialing River”. Xiwan water plant has stopped production and Guangyuan city has started emergency water supply.
The fourth is to strengthen information submission. The municipal emergency office will take the lead in reporting the situation to the provincial government in real time, and the municipal environmental protection bureau will take the lead in reporting the monitoring situation upstream and downstream.
Fifth, the propaganda department of the municipal party committee took the lead to strengthen the guidance of public opinion.
After the incident, Guangyuan municipal environmental protection bureau immediately carried out emergency encryption monitoring on the distribution points of Jialing River Basin (Guangyuan section), and informed the upstream Hanzhong city environmental protection bureau of Shaanxi province to strengthen emergency monitoring on Jialing River (Hanzhong section), and carry out emergency investigation on relevant pollution sources within the jurisdiction, so as to grasp the dynamic changes of water quality in time. At present, the emergency response work is progressing orderly, and the overall social situation of the city is stable.
Expert Consultation: there is no input of new pollution sources in the upstream with stable water quality reaching the standard.
Guangyuan municipal Party committee and municipal government should strengthen the protection of people’s living water. After the shutdown of Xiwan water plant, the domestic water used by the people in the affected area is guaranteed through measures such as connecting Yuanba water plant pipe network to the city’s competent network, activating 12 wells in the city and treating groundwater in the North water plant, the daily guarantee is supply amount 42000 tons, and the water used by the masses can be guaranteed.
According to the relevant requirements of the Ministry of Environmental Protection and the provincial government, Guangyuan municipal Party committee and municipal government went to Xiwan water plant, Chengbei water intake and other places for on-site investigation and research, and decided: actively do a good job in restoring water supply. After the water quality reaches the standard, strive to restore water supply as soon as possible. In addition, water samples were collected in 6 sections from the dam of Juting reservoir in Ningqiang county, Shaanxi province to Jialing River Bridge in yangpingguan, and emergency monitoring and analysis were carried out on thallium, manganese and arsenic in the water quality to provide basis for finding more accurate pollution sources.
As of 16:00 on May 8, the monitoring results of Guangyuan Environmental Monitoring Center station showed that the thallium concentration in the water quality of qianfoya and upstream section was up to standard or not detected, and the monitoring data at 15:00 in the section of Zhaohua ancient town was 0.00006 mg/L, reach the standard, and the cross section of the stone plate exceeds the standard 1.4 times. The analysis of comprehensive monitoring data and expert consultation results predicts that the inbound water quality of Sichuan-Shaanxi border has reached the standard steadily, and there is no new input of pollution sources in the upstream.
Next step: Find the pollution source as soon as possible and completely eliminate hidden dangers
For the next work, the provincial environmental protection department will actively cooperate with Guangyuan municipal people’s government to carry out emergency response work in accordance with the relevant work requirements of the Ministry of Environmental Protection and the provincial government. First, continue to guide the territory to do emergency monitoring, adjust the monitoring plan in time, accurately grasp the location of the pollution regiment, and provide monitoring data support for scientific disposal; Second, continue to strengthen communication and cooperation with the environmental protection department of Shaanxi province, further plus-sized the investigation of pollution sources, strive to find pollution sources as soon as possible, and effectively eliminate potential environmental safety hazards.
At 18: 00 on May 5, 2955, the monitoring station of Guangyuan City Environmental Monitoring Center found that the water quality of Jialing River entering the Sichuan fault surface was abnormal, the water quality of Xiwan water plant is 4.6 times higher than that of thallium (the national surface water environmental quality standard is 0.0001 kWh/L). Event Occurrence