LeachXS LiteTM is a data management and visualization tool that is an essential part of 

the Leaching Environmental Assessment Framework (LEAF). The tool allows the user to 

evaluate leaching data and characterize the release of constituents in materials under 

various conditions based on comparisons derived from leaching test results. LeachXS 

Lite is a simplified version of full software package LeachXSTM which facilitates data 

comparison with field results over a range of scenarios based using either empirical 

relationships or mass transfer and geochemical speciation models to provide a source 

term for constituent leaching. LeachXS Lite is freely available at 

www.vanderbilt.edu/leachinddownloads with user registration required to obtain a free-of 

-charge license key. 

LeachXS and LeachXS Lite have been developed jointly by The Energy Research Centre 

of The Netherlands (Petten, The Netherlands), Vanderbilt University (Nashville, TN, 

USA) and DHI (Horsholm, Denmark). Ongoing development of LeachXS Lite is ongoing 

and will add expanded functionality and leaching test data to subsequent versions over 

the next several months. Updated versions will also be available for free download from 

the above web address. The current version available is considered a pre-beta version that 

will be undergoing reviews by stakeholders, peer, QA, and administrative reviews. 

LeachXS Lite is supplied currently with a database of results from the CCR 

characterization conducted to date. Leaching test results included in the published reports 

for more than 70 CCRs was limited to 13 constituents; however, the supplied LeachXS 

Lite database provides data for an addition 40 constituents in most cases. All data 

contained in the LeachXS Lite database has been subject to quality assurance, peer, and 

administrative reviews as part of EPA ORD's requirements. 

LeachXS Lite can be used for data management and analysis for results from leaching 

tests carried out on a wide range of materials and waste types (e-g., secondary or recycled 

materials, stabilized waste and construction materials). The program provides facilitated 

data management and leaching data comparison including: 

 Direct import of leaching data from Excel data templates, 

 Comparison of leaching from different materials or leaching tests, allowing 

inferences about leaching mechanisms and material characteristics and behavior 

under different conditions, 

 Comparison of leaching to reference values (e.g., method detection limits, 

applicable pH domain, water quality indicators; either preloaded or user defined) 

for individual constituents, 

 Comparison of leaching from a specific material to statistical representation of a 

class or sub-class of materials, and 

 Uniform data presentation and graphic output to Microsoft Excel® spreadsheets. 

LeachXS Lite installation includes the Excel data input templates for the 

preliminary versions of EPA Methods 1313 through 1316. These leaching test 

methods are cwently undergoing inter-laboratory precision and reproducibility 

test for planned inclusion in EPA SW-846 "Test Methods for Evaluating Solid 

Waste, PhysicaVChemical Methods".