Data and Tools

Section 12: Surface Water - Drinking Water Threat

Learn about how surface water releases can threaten the safety of drinking water.

CEM-Consumer Exposure Model Download and Install Instructions

CEM contains a combination of models and default parameters which are used to estimate inhalation, dermal, and oral exposures to consumer products and articles for a wide variety of product and article use categories.

Contact Us About Navajo Nation Abandoned Mines Cleanup

The contact us form for the Navajo Nation: Cleaning Up Abandoned Uranium Mines topic at EPA.

Clean Air Act Permit Modeling Guidance

This section provides recommendations on modeling techniques and guidance for estimating pollutant concentrations in order to assess control strategies and determine emission limits.

Templates for Narrative Downstream Protection Criteria in State Water Quality Standards

These narrative templates are intended as suggestions that states and tribes may use as starting points to customize the downstream protection provisions in their water quality standards.

Designation and NAAQS Information Related to Lead (2008 Standard)

Data & Data Products: Envirofacts – Radnet Widget

Information about and embed code for EPA's Envirofacts – Radnet Widget

Macroinvertebrates Data and Major Findings

This page will provide data on the Great Lakes coastal wetland monitoring program.

Section 4: Source Characterization

Learn about source characterization for Superfund sites. Although the Hazard Ranking System (HRS) is designed to score releases and sites, sources and areas of observed contamination play a crucial role in determining HRS pathway scores.

CEDRI - List of Rules

Compliance and Emissions Data Reporting Interface

Section 2: Site Assessment Process

Learn about the multi-step process leading to the final National Priorities List (NPL) listing decision, which begins when a site is discovered and listed in CERCLIS.

Section 1: Regulatory Context of the HRS

Learn about the regulatory context of the Hazard Ranking System (HRS), the primary tool that EPA uses to place sites on the National Priorities List (NPL).

Ecotoxicology (ECOTOX) Knowledgebase Resource Hub

ECOTOX is a source for locating single chemical toxicity data for aquatic life, terrestrial plants and wildlife.

Addendum for: Rapid Method for Sodium Hydroxide Fusion of Limestone Matrices Prior to Americium, Plutonium, Strontium, Radium, and Uranium Analyses for Environmental Remediation Following Radiological Incidents

This document contains information which is intended to inform radioanalytical laboratories of newly developed EPA radiochemistry methods.