Resources

The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to quantify movement and concentration of contaminants in lakes, streams, estuaries, and marine environments.

Surface water quality models are critically important tools for managing our nation's surface waters. EPA's Water Modeling Workgroup (WMW) works to facilitate the use of surface water quality models through collaboration, information sharing, and training on models and modeling resources.

VELMA (Visualizing Ecosystem Land Management Assessments) is a tool designed to model effective decisions for a wide array of environmental issues. It is a spatially explicit ecohydrological watershed model that planners can use to visualize the effects of their decisions.

WWAO partners with water managers, identifies pressing water issues, and delivers solutions to those issues based on NASA capabilities.