Conductivity and transit time estimates of a soil liner

I. G. Krapac, K. Cartwright, S. V. Panno, B. R. Hensel, K. H. Rehfeldt, B. L. Herzog

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A field-scale soil linear was built to assess the feasibilty of constructing a liner to meet the saturated hydraulic conductivity requirement of the U.S. EPA (i.e., less than 1 × 10-7 cm/s), and to determine the breakthrough and transit times of water and tracers through the liner. The liner, 8 × 15 × 0.9 m, was constructed in 15-cm compacted lifts using a 20,037-kg pad-foot compactor and standard engineering practices. Estimated saturated hydraulic conductivities were 2.4 × 10-9 cm/s, based on data from large-ring infiltrometers; 4.0 × 10-8 cm/s from small-ring infiltrometers; and 5.0 × 10-8 cm/s from a water-balance analysis. These estimates were derived from 1 year of monitoring water infiltration into the linear. Breakthrough of tracers at the base of the liner was estimated to be between 2 and 13 years, depending on the method of calculation and the assumptions used in the calculation.

Original languageEnglish (US)
Title of host publicationOptim Resour Water Manage Proc ASCE 17th Annu Natl Conf
PublisherPubl by ASCE
Pages820-823
Number of pages4
ISBN (Print)087262756X
StatePublished - 1990
Externally publishedYes
EventOptimizing the Resources for Water Management - Proceedings of the ASCE 17th Annual National Conference - Fort Worth, TX, USA
Duration: Apr 17 1990Apr 21 1990

Publication series

NameOptim Resour Water Manage Proc ASCE 17th Annu Natl Conf

Other

OtherOptimizing the Resources for Water Management - Proceedings of the ASCE 17th Annual National Conference
CityFort Worth, TX, USA
Period4/17/904/21/90

ASJC Scopus subject areas

  • General Engineering

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