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  2. Hydrologic Modeling Community of Practice

Data Provisioning and Modeling Tools

The following products were developed by the U.S. Environmental Protection Agency in conjunction with other government, academic, and commercial institutions. To find out more about a particular product, click on a hyper-linked name in the table below. The products listed are available for download and are subject to the distribution and support policy.

Available Products
Product NameOperating SystemKey WordsSupported by ORD?
WhAEM and GFLOW Binary Base MapsWindows 7,8,10groundwater hydrology, model, wellhead protection, capture zonesYes
CTSWeb basedChemical transformation simulator, web-based, environmental pathways, biological transformation, physiochemical propertiesNo
CYANWeb basedCyanobacteria assessment network, cyanobacteria blooms, lakes and reservoirs, water qualityNo
HMSWeb Serviceshydro-informatics, hydrologic micro services, environmental modeling, water quality data provisioning web services, modeling components, precipitation, air temperature, solar radiation, soil moisture, evapotranspiration, surface and subsurface flow, runoff.No
Meteorological DataWin 98, NT, 2000, XPmeteorological, data, model, precipitation, evaporation, temperature, wind, radiation, humidity, atmosphereNo
OnSite On-line Site Assessment ToolWeb Enabledassessment, gradient, retardation factor, effective solubility, plume diving, borehole concentration averaging, transport models, henry's constants, unit conversionsNo
PESTWin 98, NT, 2000, XPmodel, independent, parameter, estimationNo
PiscesWeb basedPiscine stream community estimation system, fish assemblage, huc-based, native species, non-native species, freshwater fish, species rarity, stream size preference, occurrence envelopes, water quality metricsNo
WATERSHEDSSWin 98, NT, 2000, XPwater, soil, hydrology, decision, education, agriculture, watershed, NPS, pollution, InternetNo

Hydrologic Modeling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
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    • About This Website
    • Frequent Questions
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    • Distribution and Support Policy
Contact Us About Community of Practice
Contact Us About Community of Practice to ask a question, provide feedback, or report a problem.
Last updated on March 10, 2026
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