Sunday,  Nov 18, 2018,18:59 (GMT+7) 0 0
Danang faces shortage of freshwater, salinity intrusion
By Nhan Tam
Wednesday,  Nov 7, 2018,18:45 (GMT+7)

Danang faces shortage of freshwater, salinity intrusion

By Nhan Tam

The passage of a river in Danang City – PHOTO: NHAN TAM

DANANG – The central coastal city of Danang is struggling with a lack of freshwater and saltwater intrusion because of limited upstream rainfall and low water levels in reservoirs, according to the latest report released by Danang Water Supply JSC (Dawaco).

Ho Huong, a member of Dawaco’s board of directors, noted that the reducing upstream rainfall and low water levels of the Vu Gia and Yen rivers as well as the lowered levels of water in reservoirs versus levels recorded last year has caused salinity intrusion in the Cau Do River, with the salinity of water measuring up to 4,300 milligrams per liter.

“Dawaco operated the An Trach salinity prevention pumping station but failed to sufficiently supply raw water to the Cau Do and San Bay water treatment facilities, resulting in an undersupply of freshwater to the city’s locals,” Huong remarked.

Besides this, the water levels of the reservoirs of two hydropower plants located near Vu Gia River---A Vuong and Song Bung 4---are lower than or near the limit, the representative noted, proposing residents save clean water resources.

As such, the Danang government has asked the Ministry of Natural Resources and Environment to instruct owners of the upstream reservoirs of the Vu Gia and Thu Bon rivers to discharge water to ensure the water levels of the An Trach spillway dam reach a minimum of 1.4 meters so that the An Trach salinity prevention station can work smoothly.

In addition, Dak Mi Hydropower JSC was required to release 12.5 cubic meters of water per second to ensure the water supply for the city.

Dawaco is reportedly building the Hoa Trung water treatment plant with a capacity of 10,000 cubic meters per day to meet the city’s water demand by 2020. Work on the plant started in July. Moreover, the municipal government is in the process of selecting investors to construct the Hoa Lien water treatment facility, with a capacity of 120,000 cubic meters per day, under the build-operate-transfer format.

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