Abstract:

Pumping test with constant discharge for interpretation of leaky aquifer’s hydrogeological parameters require properly arrangement of pumping well and observation wells and to meet assumptions of each method. A case study of pumping test at Pho Noi Textile Industrial Zone is an example for this conclusion. Pumping test at DK1 pumping well with 02 observation wells and at a single pumping well DK2 show a data set allows to precisely analyzed for hydrogeological parameters in the study area. First time ever in the region, leakage factor of Pleistocene aquifer and hydraulic resistance of upper aquitard were determined respectively L=190 m and c=109.8 day based on pumping test data. Other hydrogeological parameters of Pleistocen aquifer were determined such as Transimissivity Km=2538 m2/day, Storativity μ=4.84.10-3 and Diffusivity a=5.24.105 m2/day.