Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Emergency

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory

Breadcrumb

  1. Home
  2. Hydrologic Modelling Community of Practice

AQUATOX Training Workshops

This model is being distributed, maintained and actively supported by EPA.

Table of Contents
  • AQUATOX main page
  • What's new in AQUATOX
  • Basic Information
  • What does AQUATOX do?
    • Potential applications to water management
    • Unique features and operations
  • Training - classes and downloadable presentation materials
  • Frequently Asked Questions
  • AQUATOX Email Listserv
  • Peer Review
  • Publications About or Referencing AQUATOX
  • AQUATOX Supporting Documentation
  • Modeling Periphyton with AQUATOX
  • Download the model
  • Data sources

On this page:

  • One-Day Short Course
  • Three-Day Course
  • Presentation Materials

One-Day Short Course Materials

A one-day short course on AQUATOX was presented as part of the Society of Environmental Toxicology and Chemistry (SETAC) North America 31st Annual Meeting, held November 7-11, 2010 in Portland, OR.

The objective of the short course was to familiarize users of diverse backgrounds with the capabilities of AQUATOX for use in a variety of regulatory settings.  The course included comparisons with other dynamic ecosystem models used for risk assessment. Examples of applications covered the impact of nutrient, sediments, and toxic organics on a variety of ponds, lakes, reservoirs, rivers, and an estuary.

  • Slides from Short Course—No Notes
  • Slides from Short Course—With Notes

Three-Day Training Workshop Materials

Occasionally the US EPA offers a comprehensive three-day course. It is similar in scope to the one-day course except that it covers more aspects of the model in greater depth, with diverse hands-on exercises.  Such a course was held on AQUATOX Release 3.1 beta in December 2010, November 2011 at US EPA Region 6 in Dallas, TX, and November 2012 at the Columbia River Intertribal Fish Commission in Portland, OR, respectively. Click here for a course syllabus.  The course materials are available for download:

  • Four daily files
    • AQUATOX workshop day 1 (zip) (49.19 MB) (zipped file) Introduction to model capabilities, modeling plants and animals, potential applications, model calibration and performance
    • AQUATOX workshop day 2 (zip) (91.46 MB) (zipped file) Modeling nutrients and nutrient effects, application in support of water quality management, AQUATOX and BASINS, sediment effects, fate and bioaccumulation of organic chemicals
    • AQUATOX workshop day 2 demo (zip) (64.12 MB) (zipped file) Uncertainty analysis demonstration
    • AQUATOX workshop day 3 (zip) (19.07 MB) (zipped file) Modeling estuaries, toxicity of organic chemicals and inorganic sediments

The following two labs from the course at CRITFC (CRITFC Labs 6-7) are based on a very informative study and exemplify in-depth analyses of a stream in Oregon with abundant data for multiple years. The lab tracks two bioaccumulative pesticides, one that exceeds the action level in runoff and the other a legacy pesticide that is sequestered in periodically scoured sediments. The study is the first application to simulate migration and exposure of anadromous fish (lamprey and chinook salmon). Lab 7 builds on the previous bioaccumulation lab to examine time-dependent lethality, sublethal toxicity exemplified by growth reduction, and indirect effects due to reduction in predation.

  • One file for the CRITFC labs
    • CRITFC Labs 6-7 (zip) (7.5 MB)
       

Presentation Materials

Aquatox Presentations are available for download.

  • Linking Water Quality with Aquatic Life A presentation on AQUATOX was made as part of the Sustainable and Healthy Communities Research Program’s webinar series.
  • The History and Generality of Aquatox, A Robust Mechanistic Model

Hydrologic Modelling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
  • Information Sources
    • -About CEAM
    • -CEAM Discussion
    • -Frequent Questions
    • -Related Links
    • -Distribution and Support Policy
Contact Us about Environmental Modeling Community of Practice
Contact Us about Environmental Modeling Community of Practice to ask a question, provide feedback, or report a problem.
Last updated on January 16, 2025
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.