ASCE 50-08 (R2016), 51-08 (R2016) PDF Download

ASCE 50-08(R2016) and ASCE 51-08(R2016) are standards that provide guidelines for fitting saturated hydraulic conductivity using probability density functions. Saturated hydraulic conductivity measurements exhibit variability due to local fluctuations in an aquifer's textural characteristics, even in geologically homogeneous aquifers. These standards recognize the importance of probabilistic characterization in accurately measuring groundwater flow and transport of contaminants.

ASCE/EWRI 50-08(R2016) outlines the guidelines for fitting saturated hydraulic conductivity using probability density functions. It explains how the variability in measurements can be described using a probability density function, which allows for a more comprehensive understanding of the sample. By applying probabilistic procedures, the standard helps determine the effective hydraulic conductivity, which can be used to estimate key variables such as average specific discharge and linear velocity in groundwater flow.

ASCE/EWRI 51-08(R2016) focuses on the calculation of effective saturated hydraulic conductivity (K_e or K_ew) in local-scale groundwater flow, regardless of its isotropy. This standard addresses the practical aspects of estimating effective hydraulic conductivity based on probabilistic characterization. Both standards together provide guidance on the probabilistic characterization and behavior of saturated groundwater conductivity.

These standards are valuable resources for environmental engineers, water resources engineers, and any professionals working with hydraulics in engineering.