The Ministry of Agriculture and Environment issued an urgent dispatch on reservoir operations in the Se San and Srepok river basins.

On the morning of November 6, the Department of Water Resources Management, Ministry of Agriculture and Environment sent an official dispatch to the units managing and operating reservoirs in the Se San and Srepok river basins regarding the operation of reservoirs in the river basins to respond to storm No. 13 and heavy rain and floods in the coming days.

Panoramic view of Dak N'ting reservoir (Quang Son commune, Dak G'long district, Dak Nong province) seen from downstream. Illustrative photo: VNA

According to the Department of Water Resources Management, currently, large reservoirs in the Se San River basin (Upper Kon Tum , PleiKrong, Ialy, Se San 4) and the Srepok River basin (Buon Tua Srah, Srepok 3, Lower Krong Buk) are having water levels lower than or approximately equal to pre-flood levels. According to the assessment of the National Center for Hydro-Meteorological Forecasting, around the night of November 6 to early morning of November 7, storm No. 13 (Kalmaegi storm) will make landfall in the provinces from Quang Ngai to Dak Lak.

It is forecasted that in the coming days (November 6 - November 8), there is a possibility of natural disasters causing heavy rain (focusing on the provinces from Thanh Hoa to Khanh Hoa) and a possible flood on rivers from Quang Tri to Lam Dong. In particular, it is forecasted that from November 6 to the end of November 7, the area from Da Nang to Dak Lak will have very heavy rain with common rainfall of 200 - 400 mm, locally over 600 mm; the area from South Quang Tri to Hue City, Khanh Hoa and Lam Dong will have heavy to very heavy rain with common rainfall of 150 - 300 mm, locally over 450 mm.

To proactively prevent and minimize damage caused by rain and floods, ensuring that the entire project can respond to storm No. 13 and heavy rain and floods in the coming days, the Department of Water Resources Management requests that the units managing and operating reservoirs in river basins, based on the current state of reservoir water levels, regulation capacity, hydrometeorological developments, water sources in reservoirs and water levels at hydrological stations in the downstream area, the units managing and operating reservoirs proactively calculate, develop reservoir operation and regulation scenarios and report and coordinate closely with the competent authority to decide on reservoir operations (when rain and floods are forecasted or occur) and related units in reservoir operations, ensuring prevention and reduction of downstream floods and safety of the project.

At the same time, strictly implement the reservoir operation order of the competent authority according to the regulations of the Inter-reservoir Operation Procedure. Be proactive and ready with plans. When unusual situations occur, situations of rain and flood exceeding the design frequency, it is necessary to propose a reservoir operation plan and immediately report to the competent authority according to regulations for consideration and decision on safe operation of the project and operation to respond to emergency situations.

In particular, closely coordinate with localities to proactively prepare plans when unusual situations arise during the operation of the project, ensuring absolute safety for the project, minimizing damage to people and property caused by floods to people in downstream areas; fully prepare resources to respond to unusual situations that may occur; notify and warn to ensure the safety of people and related activities on rivers and streams in the downstream area of ​​the dam and factory before operating flood discharge through the spillway, starting to discharge water for power generation or cases of sudden increase in discharge flow downstream.

Reservoir management units in river basins continue to proactively and closely monitor the hydrometeorological situation, implement monitoring and forecasting regimes, provide information, data and reporting regimes according to the provisions of the Inter-reservoir Operation Procedures. Proactively and promptly provide reservoir operation information and calculation plans, develop reservoir operation and regulation scenarios for the National Power System and Electricity Market Operation Company Limited (NSMO) and the Power System Dispatch Centers to ensure effective mobilization of power sources of hydropower plants in accordance with the requirements of flood reduction operations for downstream areas, ensuring safe, economical, effective and multi-purpose use of water sources.

In particular, check the water resources monitoring and surveillance system of the project to maintain connection, ensure that data transmitted to the water resources monitoring system (https://iot.monre.gov.vn/) is continuous and stable. In case of interruption of the transmission line, it is necessary to immediately report to the Department of Water Resources Management and have a solution to monitor and store data; fully transmit data during the interruption period. At the same time, regularly and promptly provide reservoir operation data at least once an hour (when there is a forecast, emergency storm warning, near-shore tropical depression or other weather conditions causing floods) to the Reservoir Operation Data Management System of the Department of Water Resources Management (https://quanly.dwrm.gov.vn/hochua). Immediately provide forecast bulletins and monitoring and calculation data according to the regulations of the Inter-reservoir Operation Procedures to the Department of Hydrometeorology.

Source: https://baotintuc.vn/kinh-te/bo-nnmt-ra-cong-van-khan-ve-van-hanh-ho-chua-tren-luu-vuc-song-se-san-srepok-20251106111745105.htm