Data and Tools
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The Alternatives for Disposition of Electronics Planning Tool (ADEPT)
ADEPT tool landing page
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Post-processing IsoSource Results
Discussion and a detailed example of post-processing results from the IsoSource stable isotope mixing model.
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Stable Isotope Mixing Models for Estimating Source Proportions
Stable isotope analysis can be used in ecological studies to trace chemical movement through the environment. This page provides three analysis tools for download: IsoError, IsoConc, and IsoSource.
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Radiological Fate & Transport
EPA is assessing how Cesium moves within the environment following an intentional or accidental release. EPA is conducting experimental and modeling studies and incorporating field data from the Fukushima and Chernobyl nuclear power plant accidents.
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Stormwater Management
EPA's stormwater management research, which provides information and tools to prepare communities for natural and man-made contamination events, including from chemical, biological, and radiological incidents.
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Resources for When EPA Acts as the Certifying Authority under Section 401
The EPA has developed three templates (pre-filing meeting requests, requests for certification, and certification decisions) to share its practices when the EPA is the certifying authority.
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U.S. Army Corps of Engineers: Evaluation of the San Jacinto Waste Pits Feasibility Study Remediation Alternatives (August 2016)
U.S. Army Corps of Engineers: Evaluation of the San Jacinto Waste Pits Feasibility Study Remediation Alternatives (August 2016)
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EPA Regulation Navigation Tools
home page for all 4 regulation navigation tools
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Summary of Delaware's Water Reuse Guideline or Regulation for Landscaping
Delaware (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Summary of Delaware's Water Reuse Guideline or Regulation for Agriculture
Delaware (State Regulation) | Source water: Treated municipal wastewater | End use: Agriculture
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Summary of South Carolina's Water Reuse Guideline or Regulation for Landscaping
South Carolina (State Regulation) | Source water: Treated municipal wastewater | End use: Landscaping
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Ozone W126 Index
The impact of ozone exposure on trees, plants and ecosystems often is assessed using a seasonal index known as a "W126 index."
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Lead NAAQS Review: Comparison of Numbers/Percents of Sites/Counties/Populations That are Not Likely to Meet Various Potential NAAQS Levels Using Various Averaging Times and Forms
Technical memo showing comparisons of various potential naaqs levels
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Exceptional Events Documents PM2.5 - Plumas Co.
Exceptional Events Documents PM2.5 - Plumas Co.
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Analysis relating the W126 metric and the annual 4th highest daily maximum 8-hour concentration metric (Nov 20, 2014 technical memorandum)
This memo provides the results of a technical analysis which examines the relationship between the 4th max metric and the W126 metric based on ambient air quality from 2001 to 2013.
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Lead NAAQS Review: Comparison of Numbers/Percents of Sites/Counties/Populations That are Not Likely to Meet Various Potential NAAQS Levels Using Various Averaging Times and Forms
This is the memorandum documenting analyses to support the lead NAAQS review.
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Best Communication Practices for Preparation of Exceptional Event Demonstrations
OAQPS developed this document of Best Practices based on input received from EPA regional offices and selected state/local air agencies who submitted Exceptional Event Demonstrations under the 2007 version of the Exceptional Events Rule (EE Rule).
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Public Notice of Exceptional Events - Uinta Basin of Utah
This page contains an announcement of public comment for exceptional events in the Uinta Basin of Utah, along with a technical support document containing details.
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One Point Quality Control Single Point Precision and Bias Graphics For Criteria Pollutants
This document defines the elements displayed in the corresponding box and whisker graphics as
well as base assumptions of the data contained within the AQS AMP256 report. -
Exceptional Events Documents PM2.5 - Montana
Exceptional Events Documents PM2.5 - Montana