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.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • 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

Breadcrumb

  1. Home
  2. Hydrologic Modeling Community of Practice

AQUATOX 3.1 Supporting Documents

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

Contains the user's manual, technical documentation, user manual for the extension to BASINS, sensitivity analysis, and technical notes for AQUATOX.

  • AQUATOX User's Manual release 3.1 (pdf) (2.34 MB)
  • AQUATOX Technical Document release 3.1 (pdf) (6.84 MB)
  • AQUATOX User's Manual release 2.1 for Extension to BASINS (pdf) (2.77 MB)
  • AQUATOX Sensitivity Analysis (pdf) (2.13 MB)
    This report reflects the results of a comprehensive sensitivity analysis of AQUATOX EPA Release 3.
  • AQUATOX Technical Note 1: Calibrated Parameter Set for Simulation of Algae in Shallow Rivers (pdf) (1.95 MB)
    The AQUATOX aquatic ecosystem model contains constructs that represent responses of biological entities to numerous environmental factors, and simulations can include many taxa.
  • AQUATOX Technical Note 2: Requirements, Sources, Conditioning of Data (pdf) (2.89 MB)
    The aquatic ecosystem model AQUATOX has been designed to be extremely flexible, allowing many potential types of applications.
  • AQUATOX Technical Note 3: Modeling Water Flows (pdf) (1.64 MB)
    This document attempts to clarify how to specify water flows into and out of an AQUATOX simulation in both single-segment and linked-segment modes.

Hydrologic Modeling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
  • Information Sources
    • About This Website
    • Frequent Questions
    • Related Links
    • Distribution and Support Policy
Contact Us About Community of Practice
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 16, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • 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
  • Site Feedback

Follow.