Science & Technology
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AQUATOX Data Sources for Parameter Values
Contains Bibliography for AQUATOX data libraries and the compendia of parameter values for US Army Corps of Engineers models.
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What's New in AQUATOX Release 3.2?
AQUATOX Release 3.1 includes numerous significant enhancements over previous versions that increase the realism and utility of the model. The most important enhancements include:
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AQUATOX Features and Tools
Numerous features have been included to facilitate the modeling process, from model setup and data input, presentation and analysis of results, to easy export of results to spreadsheet programs for additional analysis.
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What's New in AQUATOX Release 3.1 Plus?
AQUATOX Release 3.1 includes numerous significant enhancements over previous versions that increase the realism and utility of the model. The most important enhancements include:
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AQUATOX 3.1 Supporting Documents
Contains the user's manual, technical documentation, user manual for the extension to BASINS, sensitivity analysis, and technical notes for AQUATOX.
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AQUATOX Peer Review Documents
AQUATOX Release 2 underwent an external peer review in early 2003, and Release 3 underwent an external peer review in late 2008. Reviewers stated "model enhancements have made AQUATOX one of the most exciting tools in aquatic ecosystem management."
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Hydrologic Micro Services HMS
A hydro-informatics platform called Hydrologic Micro Services (HMS) to address the importance of interoperability, transparency, reproducibility, and efficiency in environmental modeling
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Household Energy and Clean Indoor and Ambient Air - Closed Announcement FY 2019
OAR is seeking applications from eligible entities to provide comprehensive air quality policy and regulatory analysis including support and national coordination activities to assist tribes participation in policy and regulatory activities.
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Contaminant Candidate List 3 - CCL 3
Learn about EPA's third Contaminant Candidate List (CCL 3)
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Sources of Lead in Drinking Water (Text Only)
Text Only version of the infographic titled: Sources of Lead in Drinking Water.
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Drinking Water Storage Tank Assessment Study Protocol
Optional activity designed to help drinking water systems assess the impact of tank operations on water quality, as well as estimate average tank turnover time and mixing performance within drinking water storage tanks in a distribution system.
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Free Chlorine Distribution System Influent Hold Study Protocol
Disinfection by-product optimization process and priority setting tool for drinking water systems.
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Small Drinking Water System Variances
Small system variances allow a small system to install and maintain technology that can remove a contaminant to the maximum extent that is affordable and protective of public health in lieu of technology that can achieve compliance with the regulation.
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Cost Model Documentation
WBS model documentation files.
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About Region 8’s Laboratory Services and Applied Sciences Division
The Region 8 Laboratory Services and Applied Sciences Division plays a critical role in protecting people's health and the environment through the analysis of air, water, soil, and biota samples (plant, fish, and occasionally, mammalian tissue).
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Lowest Concentration Minimum Reporting Level (LCMRL) Calculator
The Lowest Concentration Minimum Reporting Level (LCMRL) calculator constructs conditional (on spiking concentration) mean and variance models for analytical measurements.
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Analytical Methods Developed by EPA for Analysis of Unregulated Contaminants
Links to methods for the analysis of unregulated contaminants in support of the Unregulated Contaminant Monitoring Rule (UCMR).
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TENORM: Hard Rock Metal Mining
This page has information about TENORM in the hard rock mine industry, including gold, silver, zircon and titanium.
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TENORM: Fertilizer and Fertilizer Production Wastes
Phosphate rock is used in the production of phosphate fertilizers. Due to its chemical properties, phosphate rock may contain significant quantities of naturally occurring radioactive materials (NORM).