Science & Technology
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Aquatic Life Criteria - Cadmium
Documents pertaining to 2016 Acute and Chronic Aquatic Life Ambient Water Quality Criteria for Cadmium (Freshwater, Estuarine/marine). These documents contain the safe levels of Cadmium in water that should protect to the majority of species.
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Providing Evidence of Water Quality Improvements in Ohio
Providing Evidence of Water Quality Improvements in Ohio
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Addressing Citizen's Concerns in Oregon
Addressing Citizen's Concerns in Oregon
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Hydraulic Fracturing Study Research Approaches
This page show the five main types of research approaches, which each serve as a tool for determining the conditions under which HF can impact drinking water resources.
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AQS User Registration
AQS User Registration
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EPA New Approach Methods Work Plan: Reducing Use of Vertebrate Animals in Chemical Testing
EPA's New Approach Methods (NAMs) Work Plan was created to prioritize agency efforts and resources toward activities that aim to reduce the use of vertebrate animal testing.
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Stakeholder Webinar (Sept. 2021): Natural Gas & Petroleum Systems in the GHG Inventory
2021 GHGI September 2021 Webinar Supporting Materials
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Stakeholder Webinar (Sept. 2022): Natural Gas & Petroleum Systems in the GHG Inventory
2021 GHGI September 2021 Webinar Supporting Materials
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EPCRA Milestones Through the Years
The Environmental Protection Agency marks 34 years since the passage of its federal Emergency Planning and Community Right-to-Know Act (EPCRA) as part of the reauthorization for Superfund in 1986.
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Ready for Reuse in Texas
EPA has developed a new, long-term corrective action "measure of success" for all EPA/state cleanup programs that recognizes when a site/facility has been assessed and, if necessary, remediated to the extent that the property is safe for reuse or redevelop
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CGE Modeling for Regulatory Analysis
The purpose of this page is to describe EPA's capacity building of an economic regulatory analysis and provide links to the model, documentation, and other related resources.
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SAGE Model Documentation, version 2.1.1
This document provides technical details on the structure of the SAGE model.
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Estimating Radiogenic Cancer Risks
This document presents a revised methodology for EPA's estimation of cancer risks due to low-LET radiation exposures developed in light of information that has become available, especially new information on the Japanese atomic bomb survivors.
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Interim Report: Field Demonstration Of Permeable Reactive Barriers To Remove Dissolved Uranium From Groundwater, Fry Canyon, Utah
The Fry Canyon site in southeastern Utah was selected in 1996 as a long-term field demonstration site to assess the performance of selected permeable reactive barriers for the removal of uranium (U) from groundwater.
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Final Recommended Aquatic Life Ambient Water Quality Criteria for Diazinon
Information related to Final Recommended Aquatic Life Ambient Water Quality Criteria for Diazinon.
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Invited Expert Meeting on Revising U.S. EPA's Guidelines for Deriving Aquatic Life Criteria
Public meeting aimed at collecting relevant information towards revising the ambient water quality criteria guidelines.
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Fact Sheet: Methodology for Deriving Ambient Water Quality Criteria for the Protection of Human Health - Revised Methodology (2000)
Fact Sheet: Methodology for Deriving Ambient Water Quality Criteria for the Protection of Human Health - Revised Methodology (2000)
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Support for Permit Limits in Ohio
Support for Permit Limits in Ohio
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Non-attainment in Maine: Problem Identification and Solution
Case Studies: Using bioassessments and biocriteria to identify impaired waters and causes of impairment
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Documenting Ground-Water Modeling at Sites Contaminated with Radioactive Substances
This report is the product of the Interagency Environmental Pathway Modeling Working Group. This report demonstrates how to document model applications in a consistent manner and is intended to assist technical staff.