Recent Additions
Free Training: NIH Entrepreneurship Bootcamp
Posted: November 25, 2024
Electrokinetic (EK) Enhanced In Situ Remediation Engineering Issue Paper
Posted: July 8, 2024
Interim Guidance: Destruction and Disposal of PFAS
Posted: April 11, 2024
FRTR Technology Screening Matrix
Posted: March 12, 2024
AMDTreat
Posted: March 12, 2024
PFAS Analytic Tools
Posted: March 12, 2024
EPA Spreadsheet for Modeling Subsurface Vapor Intrusion (Johnson and Ettinger Model Spreadsheet Tool, Version 6.0)
Posted: March 12, 2024
Matrix Diffusion Toolkit
Posted: March 12, 2024
- Square Root Model - this module provides planning-level estimates of the mass discharge (in units of grams per day) caused by release from a low-k diffusion-dominated unit (typically silt or clay) into a high permeability advection-dominated unit (typically sand or gravel).
- Dandy-Sale Model - this module allows users to perform contaminant transport via advection and transverse diffusion in the transmissive layer, and transport via transverse diffusion in the low-k zone. The module also provides planning-level estimates of the low-k zone and the transmissive zone.
- Matrix Diffusion Related Tools - Additional tools related to matrix diffusion are provided, including the NAPL Dissolution Calculator, Plume Magnitude Information, Low-k Zone Remediation Alternatives, and a 14-Compartment Model.
PHAST - A Computer Program for Simulating Groundwater Flow, Solute Transport, and Multicomponent Geochemical Reactions
Posted: March 11, 2024
PHAST can be used in studies of migration of nutrients, inorganic and organic contaminants, and radionuclides; in projects such as aquifer storage and recovery or engineered remediation; and in investigations of the natural rock/water interactions in aquifers.
MODFLOW and Related Programs
Posted: March 11, 2024