Science & Technology
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Six-Year Review 4 Frequent Questions and Answers
These are frequently asked questions and their answers related to the Six-Year Review 4.
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Six-Year Review of Drinking Water Standards
Learn about EPA's process and outcomes for identifying drinking water standards that may need revision to strengthen public health protection or improve efficiency of implementation.
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EPA Research Events
Events that EPA Office of Research and Development sponsors or that staff members participate in.
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Recreational Waters Research
EPA conducts research to ensure that beaches, lakes, and other recreational waters are safe for human use from chemical and microbial pathogens.
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Onsite Non-Potable Water Reuse Research
EPA's onsite non-potable water reuse research.
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Project Notification Memorandums
Notification memorandums inform EPA officials about the status of Office of Inspector General preliminary and project research that may result in a full audit.
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Notification: Audit of the EPA’s Innovative Water Infrastructure Workforce Development Program
Notification: Audit of the EPA’s Innovative Water Infrastructure Workforce Development Program
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Kansas City Smelting and Refining Facility on Guinotte Street, Kansas City, Jackson County, Missouri - Fact Sheet, August 2017
EPA Conducting Initial Removal Assessment
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Troubleshooting Noncompliance at the Smallest Wastewater Treatment Plants - Part 1 (Ohio's Package Plant Initiative, Nutrient Conversion)
This webinar is intended as training to help NPDES regulated entities and regulators understand additional techniques that can help operators refine their operations, and if needed to help bring them back into compliance.
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Ralston Superfund Site, Cedar Rapids, Linn County, Iowa
The U.S. Environmental Protection Agency (EPA) Region 7 has completed the Fifth Five-Year Review for the Ralston Superfund site.
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Lead Exposure Associated with Renovation and Remodeling Activities: Phase III, Wisconsin Childhood Blood-Lead Study
The Childhood Blood-Lead Study was conducted to determine the impact of residential R&R on the blood-level concentrations of children occupying the residences.
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CMAQ Publications
Peer-reviewed research that supports or uses CMAQ is documented here.
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Human Health Risk Assessment Strategic Research Action Plan 2016-2019
EPA has designed the HHRA program to develop and apply state-of-the-science risk assessment methods to estimate risks from exposures to individual chemicals, chemical mixtures, and mixtures of chemical of chemicals and non-chemical stressors.
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Workshops to Obtain Input on Preliminary Draft Materials for the Oxides of Nitrogen Integrated Science Assessment
EPA announced a series of public workshops to evaluate preliminary draft materials that will inform the development of the Integrated Science Assessment for oxides of nitrogen.
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Research Grant Areas
Overview of EPA's research grant research areas
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California Clean Air Technology Initiative (CATI) Projects
EPA Pacific Southwest has provided funding to both South Coast AQMD and San Joaquin Valley APCD to help spur early-stage, innovative technologies that need further testing and demonstration prior to deployment and commercialization.
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Water Quality Criteria
EPA develops water quality criteria based on the latest scientific knowledge to protect human health and aquatic life. This information serves as guidance to states and tribes in adopting water quality standards.
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Freedom to Fix
In response to a Presidential Directive, EPA has issued guidance reaffirming that the Clean Air Act supports Americans’ Right to Repair their own vehicles and equipment.
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Certification and Compliance for Onroad Vehicles and Engines
Certification and compliance information for passenger cars and trucks (light-duty), commercial trucks and buses (heavy-duty), motorcycles (light-duty).