Some rivers in Tu Ky and Thanh Ha were affected by saltwater intrusion about 1 month earlier than last year.

According to Hai Duong Irrigation Works Exploitation One Member Co., Ltd., the salinity of Thai Binh River water at Dau Market sluice gate in Quang Trung Commune (Tu Ky) measured at 7:00 a.m. on November 2 was 2.5‰; the salinity of Luoc River water at Leu Vit sluice gate in Nguyen Giap Commune (Tu Ky District) at 7:00 a.m. on November 3 was 2‰.

In Thanh Ha district, at 7:00 a.m. on November 2, the salinity of Mia River water measured at Thuan A sluice was 5.3‰; the salinity of Rang River water at Huong River sluice was 1.8‰.

Last year, saltwater intrusion in rivers in Hai Duong appeared as early as December 12.

The trend of saltwater intrusion in rivers in the province is happening more and more frequently, the level of encroachment is getting deeper and deeper, threatening agricultural production.

Currently, the Provincial Irrigation Works Exploitation One Member Co., Ltd. is maintaining 17 salinity control measurement points at many sluice gates on the rivers: Han Mau, Da Vach, Kinh Thay (Kinh Mon); Rang, Mia (Thanh Ha); Lach Tray (Kim Thanh); Luoc, Thai Binh (Tu Ky). Salinity control will be maintained regularly from November to April of the following year. This helps control and regulate water for safer production.

The company has developed a drought prevention plan for the 2024-2025 winter-spring crop to proactively respond to saltwater intrusion and the river water source of the Bac Hung Hai irrigation system is sometimes polluted, making it difficult to get water for production.