Abstract:

The study results have clarified the hydrogeological characteristics of Noi Bai area, calculated the parameters of the Pleistocene qp aquifer with the drainage coefficient Km=624 m2/day, the water level transmission coefficient a=0.41*106 m2/day. The water in the Pleistocene aquifer in the area is of super pale water, TDS is from 0.098 g/l to 0.11 g/l. The water is clear and fresh, belongs to the type of magnesium bicarbonate or magnesium bicarbonate. The results of the study also forecast that the value of drawdowning the water level over time is as low as 13.87 m (LK6) and the maximum is 15.53 m (G6) and the results also calculate that the largest land subsidence after 104 days (27 years) in the study area is 1.7 cm. . From that study, it was proviced that the water exploitation capacity in the Pleistocen aquifer of 3,500 m3/day is reasonable, safe. It also shows that the water exploitation does not cause water depletion, ground subsidence or affect the regional environment.