Free accessible applications
Substrate Estimating Tool for Enhanced Anaerobic Bioremediation of Chlorinated Solvents (excel makro)
https://serdp-estcp.org/Program-Areas/Environmental-Restoration/Contaminated-Groundwater/ER-200627
Matrix Diffusion Toolkit
https://www.gsi-net.com/en/software/free-software/matrix-diffusion-toolkit-version-1-2.html
BioChlor
https://www2.epa.gov/water-research/biochlor-natural-attenuation-decision-support-system