Field Services: Soil testing

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Test Method Title

Standard Test Method for Field Measurement of Hydraulic Conductivity Limits of Porous Materials Using Two Stages of Infiltration from a Borehole

Reference Number

ASTM D6391

Material

Field Soil

Test Property

Hydraulic Conductivity, Flow Rate

Description of Test

The rate of flow of water into soil through the bottom of a sealed, cased borehole is measured in each of two stages, normally with a standpipe in the falling-head procedure. In stage 1, the bottom of the borehole is flush with the bottom of the casing. In stage 2, the borehole is extended below the bottom of the casing.

Preferred Test Sample Size

Number of Test Specimens

Typical Determined by site engineer

Test Specimen Size

5' x 5'

Keywords

coefficient of permeability; hydraulic conductivity, infiltration rate; infiltrometer, Boutwell, flow rate, field