Science & Technology

This page shows all of the pages at www.epa.gov that are tagged with Science & Technology.

  • BASINS Technical Notes

    EPA has developed several technical notes that provide in depth information on a specific function in BASINS. Technical notes can be used to answer questions users may have, or to provide additional information on the application of features in BASINS.

  • BASINS Case Study

    EPA developed a case study document for Cottonwood Creek Watershed, Idaho County, Idaho, to demonstrate the use of BASINS in developing a TMDL.

  • BASINS Tutorials and Training

    A series of lectures and exercises on how to use BASINS for water quality modeling and watershed assessment. The lectures follow sequentially. Companion exercises are provided for users to practice different BASINS water quality modeling techniques.

  • BASINS Climate Assessment Tool Tutorials

    The BASINS Climate Assessment Tool (CAT) provides a flexible set of capabilities for exploring the potential effects of climate change on streamflow and water quality using different watershed models in BASINS.

  • BASINS Publications

    Although BASINS has been in use for the past 10 years, there has been limited modeling guidance on its applications for complex environmental problems, such as modeling impacts of hydro modification on water quantity and quality.

  • Application of BASINS/HSPF to Data-scarce Watersheds

    Page for Hydrological Simulation Program - FORTRAN, a comprehensive package for simulation of watershed hydrology & water quality for both conventional & toxic organic pollutants.

  • What's Changed Between BASINS 4.0 and 4.1?

    BASINS 4.1 (released in 2013) provides a number of significant improvements over BASINS 4.0. These improvements increase the functionality and applicability of BASINS.

  • AQUATOX 3.2 Download Page

    Contains AQUATOX system requirements and installation information. Download the zipped file. Order documentation.

  • AQUATOX Setup Guide

    The new Guidance in AQUATOX Setup and Application provides a quick start guide to introduce major model features, as well as being a type of "cookbook" to guide basic model setup, calibration, and validation.

  • AQUATOX Sustainable and Healthy Communities Research Program Webinar Series

    A presentation on AQUATOX was made as part of the Sustainable and Healthy Communities Research Program’s webinar series.

  • AQUATOX 3.2 Installation Guide

    Additional details on installation may be found in the aquatox installation guide.

  • History and Generality of Aquatox

    Aquatic fate, toxicology, and ecosystem submodels were coupled to “close the loop,” representing both direct and indirect
    effects. the model is also a platform to which other environmental stressors may be added for extensive analysis.

  • BASINS Download 4.1

    The current version of BASINS 4.1 was released in 2013. This page describes the installation requirements for BASINS 4.1.

  • April 24, 2012 LT2 Public Meeting

    Meeting announcement and meeting materials for April 24, 2012 Public Meeting: information that may inform the regulatory review of the LT2 Rule uncovered finished water reservoir requirement

  • December 7, 2011 LT2 Public Meeting

    Describes meeting materials from December 7, 2011 public meeting about LT2 Rule Review

  • Exposure Analysis Modeling System (EXAMS): User Manual and System Documentation

    Revision G User manual for EXAMS, software for formulating aquatic ecosystem models & evaluating fate, transport, & exposure concentrations of synthetic organic chemicals.

  • EXPRESS (EXAMS - PRZM Exposure Simulation Shell)

    EXPRESS (EXAMS - PRZM Exposure Simulation Shell) software model-designed to facilitate a rapid and consistent assessment of aquatic pesticide exposure on a variety of crops.

  • User Manual for EXPRESS, the EXAMS-PRZM Exposure Simulation Shell

    User Guide for EXPRESS 1.03.02. software model-designed to facilitate a rapid and consistent assessment of aquatic pesticide exposure on a variety of crops.

  • Meet EPA Ecologist Paul Mayer, Ph.D.

    EPA ecologist Paul Mayer, Ph.D. works in EPA's Groundwater and Ecosystem Restoration division where he studies riparian zones (the area along rivers and streams where the habitats are influenced by both the land and water) and stream restoration

  • How to Enter Campus RainWorks

    Learn about how to enter the Campus Rainworks challenge.

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