Learn the Issues
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How does EPA develop a sampling plan for a site?
Generally, EPA begins to develop a sampling plan by gathering information about the site, including environmental history. Regarding the former Erie Coke Facility, EPA builds a sampling plan based on what we know about the former facility’s operations, information from PADEP’s prior investigations, and information from the community. The EPA…
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What is the difference between the investigation being conducted by PADEP at the Erie Coke facility and EPA’s Study Area?
The Pennsylvania Department of Environmental Protection (PADEP) continues to investigate the level and extent of potential contamination in surface water, soil, sediment, and subsurface groundwater at the Erie Coke facility. The current EPA East Avenue Study Area is focused on the soil conditions of the community and residential areas surrounding…
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Cleanup Levels for Dioxin at Superfund Sites
Access links to Regional Screening Levels (RSLs) and soil cleanup levels for dioxin.
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Cleaning up Superfund Sites
Links for each phase of the complex process of cleaning up Superfund sites.
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Asbestos at Superfund Sites
Learn about asebestos as it relates to the cleanup of Superfund sites.
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Abandoned Mine Lands: Revitalization and Reuse
Reuse opportunities at AMLs may provide the critical impetus to expedite environmental cleanup. EPA’s AML Team is dedicated to providing tools and resources to support the reuse of AMLs, including the prioritization of renewable energy projects.
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EPA Spreadsheet for Modeling Subsurface Vapor Intrusion
Johnson and Ettinger model
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What is Vapor Intrusion?
Vapor intrusion basic information
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Vapor Intrusion Screening Level Calculator User's Guide
This document describes the calculation of recommended, but not mandatory, screening levels for use in evaluating the vapor intrusion pathway at CERCLA and RCRA sites.
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Abandoned Mine Lands: Basic Information
The AML Team aims to set priorities for the evaluation, cleanup, and redevelopment of abandoned mine sites to reduce federal government financial liabilities in addressing these sites.
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Indoor Air Vapor Intrusion Mitigation Approaches
The National Risk Management Research Laboratory has developed a technology transfer document regarding management and treatment of vapor intrusion into building structures. This document describes the range of mitigation technologies available.
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Physical PPA
A physical PPA for renewable electricity is a contract for the purchase of power and associated RECs from a specific renewable energy generator to a purchaser of renewable electricity.
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Related Webinars
Webinars, including videos and slides, regarding air toxics and ethylene oxide
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Part 75 Emissions Monitoring Technical Questions and Answers
Provides clarification on the requirements of 40 CFR Part 75 through a series of questions and answers that can be used by units to monitor mass sulfur dioxide emissions, mass carbon dioxide emissions, nitrogen oxide rate and heat input.
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Overview of the Impaired Waters and TMDLs Program under CWA Section 303(d)
A brief overview of the Impaired Waters and TMDL Program.
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National Wetland Program Development Grants Request for Applications - FAQs
Wetlands Program Development Grants, FAQs,
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FY2019 Mandatory FOIA Training: Freedom Of Information Act (FOIA) Overview
FY2019 Mandatory FOIA Training: Freedom Of Information Act (FOIA) Overview
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Why hasn’t the Erie Coke site been identified as a Superfund Site?
The former coke facility is currently under the Pennsylvania Department of Environmental Protection’s Hazardous Sites Cleanup (HSCA) Program. PADEP continues to investigate the former Erie Coke facility, and EPA is focusing on the residential areas around the facility to determine if contaminants were released into the surrounding area. PADEP continues…
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What is the key question EPA tries to answer through a Site Investigation?
Findings of a Site Investigation determine what hazardous substances may be present, whether they may be released to the environment, and any potential threat to human health. Information about the site that is collected during the Site Investigation phase helps EPA evaluate the risks posed by the site. EPA will…
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Lead (Pb) Research and the Risk Paradigm
Lead research in the context of risk