Science & Technology

StreamCat Web Tool (Table View)

The table view version of the StreamCat Web App

The National Aquatic Resource Surveys (NARS) use probability-survey designs to assess the condition of the nation’s waters. In probability surveys (also known as sample-surveys or statistical surveys), sampling sites are selected randomly.

National Lakes Assessment 2017 Infographics

National Lakes Assessment 2012 Iinfographics

Documentation for EPA's Power Sector Modeling Platform v6 - November 2018 Reference Case

On this page you will find documentation about EPA’s Platform v6 assumptions, updates, changes, and enhancements, including the full support document as well as additional tables and attachments.

Review of Well Operator Files

EPA conducted a survey of onshore oil and gas wells hydraulically fractured by 9 oil and gas service companies in 2009 and 2010.

Total Risk Integrated Methodology (TRIM) - TRIM.FaTE

TRIM.FaTE is a spatially explicit, compartmental mass balance model that describes the movement and transformation of pollutants over time, through a user-defined, bounded system that includes both biotic and abiotic compartments.

EML HASL-300 Method Ra-03-RC: Radium-226 in Soil, Vegetable Ash, and Ion Exchange Resin

This method uses a radon bubbler to capture radium, which is de-emanated into an ionization chamber or scintillation cell, and counted.

ORISE Method AP5: Determination of Technetium-99

This method uses liquid scintillation counting to determine technetium-99 in soil, sediment, surface wipes, air filters and vegetation.

Series 830 - Product Properties Test Guidelines

links to series 830 test guidelines in docket

BenMAP-CE Training Materials

Are you interested in learning more about how to operate the BenMAP-CE program? A variety of training resources are available, including self-paced exercises, online interactive modules and instructor-led training.

Peer Review of the Draft Risk Evaluation for Carbon Tetrachloride

Information on the SACC peer review of the draft risk evaluation for carbon tetrachloride

Frequent Questions

Frequently Asked Questions. Frequent Questions

Addressing and Managing Plastic Pollution Presentation Slides

Presentation Slides: Addressing and Managing Plastic Pollution Webcast

Land Cover Digital Data Directory for the United States

A compilation of reference information on where and how to obtain available national or statewide GIS land cover data sets.

Moisture Control Guidance for Building Design, Construction and Maintenance

This page provides information on practical guidance to control moisture in buildings during design, construction and maintenance.

Nitrogen Dioxide (NO2) Primary Standards - Policy Assessments from Current Review

Scientific and technical policy assessments used to develop the current nitrogen dioxide primary national ambient air quality standard.

Govis RFC: Information Quality Guidelines Atrazine

Request submitted by Julia Govis

EmPOWER Air Data Challenge

CAPD is looking for researchers and students to more practically use the wealth of power sector data knowledge that CAPD has. For those that use CAPD's data, they will discuss conclusions or questions with CAPD staff to better understand and analyze data.