Da Nang requested the Ministry of Natural Resources and Environment to direct the release of water to operate the salinity prevention pumping station

Through monitoring the salinity on the Cau Do River at the water intake location of the Cau Do Water Plant from April 1 to 15, the salinity often exceeded the threshold of 1,000mg/l. This is the salinity value that requires NMN to close the water intake on Cau Do River and operate the An Trach salinity prevention pumping station to pump water from the Yen River to the regulation lake at Cau Do NM.

At the same time, the water level of the Yen River at the An Trach dam often lowers on weekends and holidays, when hydroelectric plants in the Vu Gia – Thu Bon river basin operate and discharge water with less flow. regulations.

The water level on the Yen River at the An Trach dam at one point was the lowest in the series of monitoring data so far. Typically at 4:00 p.m. on February 26, it was 1.24m; at 5:15 a.m. on April 15, 2024, it was 1.33m.

Meanwhile, if the Yen River water level at the An Trach weir is lower than 1.6m, the old An Trach salinity prevention pumping station has a capacity of 210,000m3.³/day and night stop working. The Yen River water level at the An Trach weir is 1.1m lower, so both the new and old An Trach salinity prevention pumping stations have a total capacity of 420,000m³/ day and night must completely stop operating.

According to the City People’s Committee. Da Nang, currently, the water demand in the area during the peak of the hot season is about 360,000m3.³/day and night, so the lowering of the water level on the Yen River will not ensure the operation of the new An Trach salinity prevention pumping station and risks causing a lack of domestic water.

To ensure the water level for the operation of An Trach Salinity Prevention Pumping Station, the People’s Committee of Da Nang City requested the Ministry of Natural Resources and Environment to direct the Department of Water Resources Management to continue coordinating with departments and branches of the city. Da Nang closely monitors and urges hydroelectric reservoirs in the Vu Gia-Thu Bon river basin to operate in accordance with the 1865 Process to ensure adequate water supply for daily life and production in the downstream region of the Vu river basin. Gia-Thu Bon until the end of this year’s dry season.

Da Nang requested the Ministry of Natural Resources and Environment to direct the release of water to operate the An Trach salinity prevention pumping station.

At the same time, direct hydroelectric plants in the Vu Gia – Thu Bon river basin to discharge water to generate electricity with a flow lower than prescribed in Process 1865 to ensure electrical energy security requirements. It is still necessary to ensure discharge with enough flow to maintain the water level at the An Trach weir area at no less than 1.6m, to ensure safe water supply for the City. Danang.

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