Science & Technology

Procedures for Equipment Inventory and Management in the Laboratory Services and Applied Science Division

Field Branches Quality System and Technical Procedures

HPI Products Inc. Facilities, St. Joseph, Buchanan County, Missouri – Fact Sheet, June 2022

Public Comment Period - Request for Community Concerns

U.S. EPA National Pet Health Survey Poster

EPA and the One Health Commission administered The National Pet Health Survey to gather voluntary information from pet owners to evaluate health trends in cats and dogs across the United States.

Pesticide Analytical (PESTAN) Model

The PESTAN (Pesticide Analytical) model is a computer code for estimating the transport of
organic solutes through soil to groundwater.

Drinking Water Health Advisories for GenX Chemicals and PFBS

Environmental Value of Applying Compost

This EPA report synthesizes the published science about the benefits of compost application in a variety of sectors.

About the TSC

The Tribal Science Council (TSC) is a forum for interaction between Tribal and EPA representatives to work collaboratively on environmental science issues. The TSC is committed to the development of sound scientific approaches to meet the needs of Tribes.

Remediation Evaluation Model for Chlorinated Solvents (REMChlor)

This model simulates the transient effects of groundwater source and plume remediation. This model also calculates cancer risks posed by carcinogenic species.

Vadose Zone Leaching (VLEACH)

VLEACH is a one-dimensional, finite difference model for making preliminary assessments of the effects on groundwater from the leaching of volatile, sorbed contaminants through the vadose zone.

Wellhead Protection Area (WHPA) Model

WHPA is a semi-analytical groundwater flow simulation program used for delineating capture zones in a wellhead protection area.

EPA Response to RFR 19001A appeal: issued 01/15/2020

This document is the IQG Executive Panel's final determination for this appeal RFR 19001A concerning the Bristol Bay Watershed Assessment

RFR 17002A Withdrawal Letter Received 03/01/2021

Frequent Questions About the EMC

Frequent Questions about the Air Emission Measurement Center (EMC)

Addressing Emerging Contaminants in Wastewater Treatment Systems Webinar Archive

This EPA Tools & Resources webinar provides overview of work to develop a framework of wastewater treatment processes, focusing on removal rates of certain emerging contaminants, as well as associated life cycle costs and environmental impacts.

Meet EPA Scientist Rachael Leta-Graham

EPA scientist Rachael Leta-Graham (she/her) is a physical scientist interested in bridging gaps and finding common ground in environmental work performed by federal government and non-governmental organizations (NGOs). Since 2016, Rachael has served as the

Introduction to Using Excel Spreadsheets to Assist in Developing Quality Assurance Project Plans

Part of a tool designed to assist in developing a QAPP for projects that involve surface or groundwater monitoring or the collection and analysis of water samples.

Chemical and Products Database (CPDat)

CPCat (Chemical and Product Categories) is a database containing information mapping more than 43,000 chemicals to a set of terms categorizing their usage or function.

EPA Response to RFC 21001 that challenges the mathematical premise on which the Greenhouse Effect and Greenhouse Gases are based

EPA Response to RFC 21001 that challenges the mathematical premise on which the Greenhouse Effect and Greenhouse Gases are based.

Particle Pollution Exposure

Health Effects in the General Population

Learn about the Particle Pollution and Your Patients' Health Course

About This Course