Science & Technology

NEPAssist

NEPAssist is a tool that facilitates the environmental review process and project planning in relation to environmental considerations.

U.S. EPA Wood Pellet Research Project

The EcoService Models Library is an online database for finding, examining and comparing ecological models that may be useful for quantifying ecosystem goods and services.

National Water Program Guidance

National Program Guidance description

Water Quality Standards Regulations: Colorado

Water quality standards that are EPA-approved or in effect for Clean Water Act purposes.

Freshwater Harmful Algal Blooms Request for Applications (RFA)

EPA is seeking regular and early career applications proposing innovative research on the prediction, prevention, control and mitigation of freshwater HABs as well as the drivers, life cycle patterns, and fate of and effects from from less-common, less

Report of the Workshop on Selecting Input Distributions for Probabilistic Assessments

The workshop and this report will assist EPA in developing a framework and guidance for selecting input distributions for probabilistic risk assessments.

Notification: Evaluation of the EPA’s Progress in Fulfilling Infrastructure and Investment and Jobs Act Requirements Related to Water and Wastewater System Cybersecurity

Water Quality Data

The Water Quality Portal Data Warehouse is a repository for water quality, biological, and physical data and is used by state environmental agencies, EPA and other federal agencies, universities, private citizens, and many others.

Applying the National Aquatic Resource Survey Data

The NARS generate nationally-consistent water quality data across a variety of indicators. States have applied the NARS data to help address local policy questions and to implement changes regarding aquatic resource management.

StreamCat Data Processing and Quality Assurance

Description of steps used to process data and keep up with quality assurance standards when creating the StreamCat dataset.

Magnificent Ground Water Connection

A compilation of some of the best ground water-related activities from previously existing curricula, seasoned with a collection of original materials and geared specifically to New England.

UST Finder

This page contains a fact sheet about the UST Finder web mapping application

Visual Plumes

Page on Visual Plumes model system, a Windows-based software application for simulating surface water jets and plumes.

Site Screening Report: June Abandoned Uranium Mine

Site Screening Report of June abandoned uranium mine which includes all immediate information associated with the mine site.

Site Screening Report: Alta Abandoned Uranium Mine

Site Screening Report of Alta abandoned uranium mine which includes all immediate information associated with the mine site.

Site Screening Report: C-3 Abandoned Uranium Mine

Site Screening Report of C-3 abandoned uranium mine which includes all immediate information associated with the mine site.

Research Highlights Archive

EPA scientists have primary responsibility for the continual development of CMAQ and its related models. There are currently a multitude of research projects underway that focus on a range of topics.

Chemical Process Overview

CMAQ simulates the chemistry of airborne pollutants with a semi-integrated approach.

Improving the representation of monoterpene chemistry in CMAQ

CMAQ was used to simulate conditions during the the Southern Oxidant and Aerosol Study (SOAS) in the summer of 2013. Data collected as part of this study have been used to perform diagnostic model evaluation.

Trends in Air Pollution Exposure Using CMAQ

CMAQ simulations have been analyzed to investigate the historical trend in the long-term exposure to PM2.5 and PM2.5-related premature mortality (PM2.5-mortality); and to examine implications for future trends in human exposure to air pollution.