China News Agency, Beijing, June 3 (Reporter Chen Su) According to data released by the Ministry of Water Resources, as of June 3, the South-to-North Water Diversion Middle Route Project had safely delivered water for 2,000 days, and the Danjiangkou Reservoir reached the total main channel through Taocha Canal. 30 billion cubic meters, benefiting 60 million people along the route.
On December 12, 2014, the mid-line project of the South-to-North Water Diversion Project was officially opened for water. Over the past five years, the water supply pattern in the water-receiving area has been changed, and it has gradually become the main source of domestic water for cities along the line from supplemental water sources. Up to now, more than 75% of Beijing's urban water consumption is Nanshui; residents of 14 administrative districts in Tianjin have used Nanshui; 13 cities in Henan benefited, among which many cities use 100% in the main urban areas; 9 cities in Hebei benefited . Beijing, Tianjin, Shijiazhuang and other large and medium-sized cities in the north have basically got rid of water shortage constraints.
In order to ensure the quality of Nanshui water, 43 counties and key township waste disposal facilities in the water source area have been fully covered. More than 500 enterprises with serious pollution have been shut down in related areas, and more than 300 new projects have been suspended and rejected. Get effective control.
According to monitoring, the water quality of Danjiangkou Reservoir and the main line of the main line has been stable at Grade Ⅱ and above for more than five years. The quality of drinking water along the route has improved significantly. The hardness of Beijing tap water has increased from 380 mg/l to 130 mg/l.
In addition to increasing the water supply for production and living in the water-receiving area and improving water quality, the South-to-North Water Diversion Project also repaired the water ecological environment in the water-receiving area, alleviating the situation in which urban production and domestic water squeezed agricultural water and overexploited groundwater.
Since 2017, the mid-line project has provided ecological water replenishment to more than 40 rivers along the route for four consecutive years. The cumulative water replenishment is nearly 4 billion cubic meters, which has promoted a significant rebound in the groundwater level in the water receiving areas along the route. As of October 2019, the average buried depth of groundwater in the Beijing Plain area is 22.81 meters, an increase of 0.63 meters from the previous year. The water storage capacity of the Miyun Reservoir in Beijing has exceeded 2.6 billion cubic meters for the first time since 2000, and the capital’s water supply guarantee level has been improved. The groundwater level dropped from 0.45 meters to an increase of 0.52 meters per year; the average groundwater level in Henan's water-receiving areas rose 0.95 meters.
The provinces and cities along the middle route of the South-to-North Water Transfer Project also vigorously implemented the urban-rural water supply integration project and the rural safe drinking water project, and achieved remarkable results, providing a strong guarantee for China's water supply security and ecological security. (Finish)