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Surface Water Quality Modeling Training

EPA’s Water Modeling Workgroup (WMW) sponsors an ongoing series of two-hour webinars to help water quality professionals better understand surface water quality models and how they can be used to address water quality problems. Under An Introduction to Water Modeling, the first three webinars cover modeling basics such as selecting, developing, and running hydrology and water quality models. Subsequent webinars focus on modeling specific pollutants and parameters (for example, nutrients, sediment, metals), specific types of models, and modeling at different scales.

Topic and Description

Training

An Introduction to Water Modeling
For general information on modeling
  • Modeling 101 – Part 1 (YouTube) (1:22:28)
  • Modeling 101 – Part 2 (YouTube) (1:44:24)
  • Water Quality Models 101 – What Are These Things? (YouTube) (1:46:57)
  • Brick by Brick: How Water Quality Models are Developed (YouTube) (1:56:03)
  • Interpreting and Using Water Quality Models (YouTube) (1:28:02)
  • Data Needs for Modeling (YouTube) (1:43:24)
  • EPA’s Hydrologic Micro Services (HMS) Web Services Platform (YouTube) (47:56)
  • Post-processing Model Updates (YouTube) (1:02:06)
Water Quality Modeling
Particularly at medium scales, such as a single river, lake, or reservoir
Nutrients
  • Nutrient Cycles, Potential Impacts on Water Quality and Developing Nutrient Endpoints (YouTube) (1:49:23)
  • Modeling Nutrients in Rivers, Streams, Lakes, Reservoirs and Estuaries (YouTube) (1:48:55)
  • Reservoir Eutrophication Models on the Wisconsin River (YouTube) (1:28:45)
  • Modeling Florida Lakes with BATHTUB (YouTube) (1:19:58)
Dissolved Oxygen
  • Modeling Dissolved Oxygen (YouTube) (1:32:35)
Sediment
  • Sediment Modeling Part I (YouTube) (1:31:15)
  • Sediment Modeling Part II (YouTube) (1:30:18)
Temperature
  • Nooksack River QUAL2Kw Temperature Model and Climate Change Scenarios (YouTube) (1:55:03)
Toxics
  • Introduction to AQUATOX (YouTube) (1:25:49)
  • Water Quality Simulation Program (WASP) to Simulate Toxicant Concentrations in Surface Waters & Sediments (YouTube) (1:12:18) 
Modeling Frameworks
  • Introduction to WASP (YouTube) (1:57:39)
  • Introduction to EFDC (YouTube) (2:07:57)
  • Introduction to CE-QUAL-W2 (YouTube) (1:29:28)
  • QUAL2K Version 3.0 (YouTube) (2:03:51)
Reproducible Workflows
  • Reproducible Workflows: Moving from Spreadsheets to Coding (YouTube) (1:32:46)
  • Reproducible Workflows: Processing Water Quality Portal Data in R (YouTube) (1:28:04)
  • Reproducible Workflows: Processing USGS Streamflow Data in R (YouTube) (1:34:58)
  • Reproducible Workflows: Processing NOAA Weather Data in R (YouTube) (1:30:48) 
  • Reproducible Workflows: Processing gridded weather data in ArcGIS and Python  (YouTube) (1:39:52)

Land Use and Watershed Modeling
Possible at larger watershed scales, such as the upper Mississippi basin
  • Introduction to VELMA (YouTube) (1:25:19)
  • HAWQS Version 2 (YouTube) (1:32:31)
  • Watershed Modeling Using HSPF (YouTube) (1:48:52)
  • Conestoga River Watershed HSPF and SWAT Modeling (YouTube) (1:20:54)
  • Introduction to SWAT (YouTube) (2:00:16)
  • Introduction to SWAT+ (YouTube) (1:26:38)
  • Introduction to EPA’s Watershed Management Optimization Support Tool (WMOST) v3 (YouTube) (1:40:37)
  • Introduction to APEX (YouTube) (1:41:19)
  • Introduction to BASINS (YouTube) (2:03:03)
  • 2021 Updates to EPA's Storm Water Management Model (SWMM) (YouTube) (1:14:08)
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Ongoing Workshops

EPA’s Region 4 and WMW sponsor periodic workshops on the use of the Water Quality Analysis Simulation Program (WASP).

WASP is a very widely used model with the ability to analyze multiple water quality parameters in streams, rivers, lakes, reservoirs, and estuaries in 1, 2, or 3 dimensions.

Water Data and Tools

  • Integrated Water Analysis
  • Ambient Water Quality
  • Community Financing
  • Drinking Water
  • Water Restoration
  • Water Quality Models
Contact Us About Water Data and Tools
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 7, 2025
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