The paper presents geotechnical characteristic of bottom sediments from Rzeszowski Reservoir. They were classified as silty soils in liquid state, with organic parts content above 2%, therefore classified as organic. Averaged material, that came from mixing all sediments samples, was classified as silt with low permeability, large surface area, increased organic parts content and relatively high values of shear strength parameters. Based on carried out analysis it was stated that tested sediments can be preliminary accepted for forming soil liners in municipal waste disposal sites.

49-60