Science & Technology

Hazardous Waste Electronic Manifest System Advisory Board Meeting – “Roadmap to 100% Electronic Manifests” – October 4-6, 2022

Includes agenda, board roster, presentation, charge questions, background paper and advisory board meeting transcript.

Electronic Manifest Public Meetings

draft text

Energy Case Studies

Tips and resources for meeting Federal Green Challenge energy goals.

Documentation Chapters for Greenhouse Gas Emission, Energy and Economic Factors Used in the Waste Reduction Model

This document provides background documentation for the greenhouse gas and energy factors in EPA's Waste Reduction Model (WARM).

Frequent Questions about the Waste Reduction Model

This page provides responses to frequent questions about EPA’s Waste Reduction Model (WARM. The page includes information and guidance on using the tool.

West Africa Drinking Water Laboratory Capacity Program: Quality Assurance Manual

This Laboratory Quality Assurance Manual documents the Quality Assurance Programme and activities in Ghana Water Company Limited. This manual was one of the outcomes from the West Africa Drinking Water Laboratory Capacity Program,

SAM 2022 Chemical Sample Prep Method Summary

Selected Analytical Methods.

EPA to Provide Nearly $1 Million to Mid-Atlantic States to Protect Beachgoers from Bacteria

EPA News Release: EPA to Provide Nearly $1 Million to Mid-Atlantic States to Protect Beachgoers from Bacteria

Release Date: May 30, 2025

Sample Collection Procedures and Strategies

Individuals responsible for collecting environmental and building material samples following a contamination incident, can use these procedures to plan for and/or collect samples for analysis using the analytical methods listed in EPA's SAM

Draft Phase III Evaluations

Detailed evaluations for the Bay Jurisdictions

Final EPA Evaluation of 2014-2015 Milestone Progress and 2016-2017 Milestone Commitments in the Chesapeake Bay Watershed

This page provides PDFs of the final EPA evaluation of 2014-2015 milestone progress and 2015-2016 milestone commitments.

Ecosystem Rarity Toolbox

This page describes the concept of ecosystem rarity and provides a download link for the Ecosystem Rarity toolbox.

Map of Water Quality Assessment Results of the San Juan Watershed

Interactive map with information on the condition of the San Juan Watershed including outcomes of state assessments of water quality under the Clean Water Act.