Lop buri: The Royal Irrigation Department has announced a significant increase in water discharge from the Pasak Jolasid Dam, anticipating an influx of 1.4 billion cubic meters of water by the end of the rainy season. This strategic move will lead to a gradual rise in water levels in the Pasak River downstream, ranging from 0.80 to 1.00 meters. The department clarified that this is a controlled adjustment aimed at managing river water levels effectively.
According to Thai News Agency, the Pa Sak Jolasid Water Supply and Maintenance Project has alerted residents in the Pa Sak River Basin to stay vigilant and closely observe the water conditions at the dam. Projections indicate that the water flow into the Pa Sak Jolasid Dam during September and October 2025 will reach approximately 1.4 billion cubic meters, mirroring the levels seen in 2013.
Currently, the Pasak Jolasid Dam holds a water volume of 340 million cubic meters, equating to 35 percent of its capacity, with water inflows continuing to rise. The Royal Irrigation Department has outlined plans to release roughly 520 million cubic meters in September at a rate of 200 cubic meters per second (or 17.28 million cubic meters per day) and around 900 million cubic meters in October at a rate of 336 cubic meters per second (or 29.03 million cubic meters per day). These measures aim to maintain water levels in the dam at optimal levels.
The Pa Sak Cholasit Water Supply and Maintenance Project has already initiated an increase in water discharge from an initial rate of 100 cubic meters per second, targeting a rate of 200 cubic meters per second. The discharge rate will be incrementally increased by 20 cubic meters per second per day until it reaches the target. This operation commenced on September 2nd.
The planned water discharge will result in a rise in the water level in the Pa Sak River downstream of the dam by 0.80-1.00 meters. While the increase is within the river’s capacity and will not cause overflow, the public is advised to stay alert for any updates from the Pa Sak Cholasit Water Supply and Maintenance Project.