Other Recent Additions
Recent Additions
2022 Superfund Annual Accomplishments Report
Posted: June 1, 2023
This report highlights important environmental justice and climate work at sites as well as our achievements protecting human health, engaging communities, revitalizing cleaned up sites and innovating through science and technology.
Geologic Frameworks for Groundwater Flow Models
Posted: May 18, 2023
Groundwater modelers should be familiar with and have access to systematic methods for translating physical subsurface geology into a numerical representation. Other hydrogeologists will benefit from understanding the process. This book introduces techniques for creating the underlying geologic framework of groundwater flow models. It is arranged around a hypothetical site with contaminated groundwater, beginning with a discussion of data collection and geologic interpretation, then delves into the steps required to build a realistic numerical model. The reader will find that many of the methods and calculations can be applied with tools as simple as paper and pencil. Links to publicly available computing resources are provided where possible.
Advanced Notice of Proposed Rulemaking: PFAS
Posted: April 19, 2023
EPA is issuing an Advance Notice of Proposed Rulemaking (ANPRM) asking the public for input regarding potential future designations of per- and polyfluoroalkyl substances (PFAS) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).