Science & Technology
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Exhibit A of the Request for Correction Regarding "Drinking Water: Regulatory Determination on Perchlorate" (RFC 12004)
EPA Request for Correction 12004 (Exhibit A): A review of perchorlate occurrence in public drinking water systems
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Volunteer Monitoring Presentations and Recordings
Past presentations given for the Volunteer Monitoring Workgroup.
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Volunteer Monitoring Workgroup
This page is meant for the NWQMC Volunteer Monitoring Workgroup materials
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Water Research Publications in the Science Inventory
Water Research Publications
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Microbiological and Chemical Exposure Assessment: Water
EPA microbiologists are studying ways that chemicals and microbes can travel through and grow in ground water, drinking water, and recreational water.
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Chemical and Microbial Risk Research
EPA researches water contaminants in order to promote safe recreational waters; maintain healthy water resources, and prepare for potential terrorist threats
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RFC 18003 - EtO EPA Response; issued 12/18/2019
Final response letter to Mr. William P. Gulledge on behalf of the Ethylene Oxide Panel for RFC 18003
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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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Quality Assurance for Brownfields Grants in Region 5
Quality Assurance Project Plan (QAPP) guidance for brownfield grants in Region 5
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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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Interim Guidance on the Preparation of Demonstrations in Support of Requests to Exclude Ambient Air Quality Data Affected by High Winds Under the Exceptional Events Rule
The purpose of this document is to provide assistance and illustration to air agencies implementing the EER for high wind dust events.
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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.