Science & Technology
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Updates to Environmental Sampling and Analytical Methods (ESAM) Program
View information on the latest updates to methods included in EPA's Selected Analytical Methods for Environmental Remediation and Recovery (SAM), including the newest recommended methods and publications.
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Addressing Water Quality Challenges Using a Watershed Approach
We all live in a watershed — the area that drains to a common waterway, such as a stream, lake, estuary, wetland, aquifer, or even the ocean — and our individual actions can directly affect it.
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Urban Runoff: National Management Measures
This helps citizens and municipalities in urban areas protect bodies of water from polluted runoff . These scientifically sound techniques are the best practices known today. The guidance helps states to implement their nonpoint source control program.
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Nonpoint Source Highlights Reports
A glimpse of NPS activities underway across the United States supported by §319. It provides a snapshot of strategies that state agencies, territories and tribes are using to tackle the spectrum of water quality issues related to NPS pollution
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Urban Runoff: Model Ordinances for Aquatic Buffers
Aquatic Buffers serve as natural boundaries between local waterways and existing development. The model and example ordinaces below provide suggested language or technical guidance designed to create the most effective stream buffer zones possible.
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Environmentally Sensitive Maintenance for Dirt and Gravel Roads
This manual identifies, documents, and encourages the use of environmentally sensitive maintenance of dirt and gravel roads.
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National Management Measures to Control Nonpoint Source Pollution from Forestry
This report helps forest owners protect lakes and streams from polluted runoff that can result from forestry activities. The report will also help states to implement their nonpoint source control programs.
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Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters
EPA publication EPA 840-B-92-002 January 1993 This "management measures" guidance addresses nonpoint pollution in coastal water.
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Artificial Intelligence in Disaster Preparedness, Response, and Recovery Webinar Archive
This EPA Tools & Resources Webinar showcases real-world applications of artificial intelligence and its future potential in disaster preparedness and recovery.
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Fact Sheet - Final Revisions to the 2007 Exceptional Events Rule and Notice of Availability for Related Draft Guidance
On September 16, 2016, the U.S. Environmental Protection Agency (EPA) finalized revisions to the 2007 Exceptional Events Rule to address issues raised by stakeholders and to increase the administrative efficiency of the Exceptional Events Rule process.
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Federal Register Notice – Extension of public comment period to February 3, 2016
On November 20, 2015, the Environmental Protection Agency (EPA) proposed a rule titled, “Treatment of Data Influenced by Exceptional Events.” This document describes the extension of the comment period on the proposed rule.
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Federal Register Notice - Proposed revisions to the Exceptional Events Rule
This Federal Register Notice describes the EPA's proposed revisions to certain sections within the regulations that govern the exclusion of event affected air quality data from regulatory decisions.
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Response to Comments Document for 2016 rule revisions
This Response to Comments (RTC) document presents the Environmental Protection Agency’s (EPA) responses to public comments received on the proposal notice to revise the Exceptional Events Rule (80 Federal Register (FR) 72840; November 20, 2015).
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Federal Register Notice – Final Revisions to the Exceptional Events Rule
This final rule contains definitions, procedural requirements, requirements for air agency demonstrations, criteria for the EPA’s approval of the exclusion of event-influenced air quality data and requirements for air agencies.
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Development of Innovative Approaches to Assess the Toxicity of Chemical Mixtures Research Grants
EPA awarded $7M in research funding to 11 institutions to develop and evaluate innovative methods and approaches to inform human health risk assessment of environmental chemical mixtures.
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Water Quality Portal Quick Reference Guide
This page includes a description of the Water Quality Portal Quick Reference Guide and documentation tables for the WQX 2.0, 3.0, and WQP outbound fields and data profiles.
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Superfund Climate Resilience: Vulnerability Assessment
Learn about Superfund Vulnerability Assessments, climate resilience efforts that seek to evaluate a site remedy's exposure and sensitivity to climate and weather hazards of concern.
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Superfund Hazard Ranking System Training Course
Learn about the Superfund Hazard Ranking System Training Course, a 4.5 day intermediate-level course designed for personnel tasked to compile, draft, and review preliminary assessments (PAs), site inspections (SIs), and HRS documentation.
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HRS Subsurface Intrusion (SsI) Training Modules
Learn about the Hazard Ranking System (HRS) subsurface intrusion (SsI) component through five training modules. These complement the Superfund HRS Training Course.
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IIOAC - Integrated Indoor-Outdoor Air Calculator User's Guide
This user guide provides a more detailed overview of the IIOAC model, equations used to estimate air concentratoin and deposition from point and area sources in industrial facilities and water and soil sources. Rationale for defaults is also explained.