Science & Technology
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EPA Final Evaluation of 2018-2019 Milestone Progress and 2020-2021 Milestone Commitments
The full list of milestones from each state and federal agencies
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Draft Guidance for Ozone and Fine Particulate Matter Permit Modeling
Draft Guidance for Ozone and Fine Particulate Matter Permit Modeling
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Past Webinars in the Water Research Series
A collection of past webinar recordings and descriptions for EPA's Water Research Webinar series, which occurs on a quarterly basis.
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Water Quality Standards Regulations: Yurok Tribe
Information about water quality standards for the Yurok Tribe.
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WRF-CMAQ Model
WRF-CMAQ Coupled Model
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Ecosystem Services Portal
EPA’s Ecosystem Services Tool Selection Portal is a resource to help communities incorporate the benefits of local ecosystems into their environmental planning and decision-making.
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Register for Webinar on Reducing Vertebrate Animal Testing
Register for December 7, 2022, Webinar on Reducing Vertebrate Animal Testing
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Final Test Guidelines for Pesticides and Toxic Substances
Listing of the Final OCSPP Test Guidelines Series with links to the Series
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Dynamometer Drive Schedules
This page provides the chassis dynamometer driving schedules and shift schedules used by EPA for vehicle emissions and fuel economy testing.
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FIFRA Scientific Advisory Panel Meetings Related to Biopesticides
These Scientific Advisory Panel meetings provide information about the regulatory process for various biopesticides and products of biotechnology.
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Onsite Non-Potable Water Reuse Research
EPA's onsite non-potable water reuse research.
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Frequent Questions about PFAS Methods for NPDES Permits
Frequent questions about analytical methods to detect the presence of PFAS compounds applicable to NPDES permits
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Series 810 - Product Performance Test Guidelines
links to 810 series test guidelines in the docket
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Air Emissions Inventory Listservs
CHIEF Listserv provides updates on emission factor and inventory information via e-mail. NEI Listserv fosters communication with EPA Offices, State/Local Agencies, Tribes in preparation of the NEI
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Consolidated Human Activity Database (CHAD) - Documentation for CHAD-Master
This document describes CHAD and its use.
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Borehole-Radar Reflection Logging
Borehole-Radar Reflection Logging
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Fiber Optic Distributed Temperature Sensing
Fiber Optic Distributed Temperature Sensing (FO-DTS)
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Seismic Methods
Seismic methods are the most commonly conducted geophysical surveys for engineering investigations. Seismic refraction provides engineers and geologists with the most basic of geologic data via simple procedures with common equipment.
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Electromagnetic Methods
In the electromagnetic induction process, an EM transmitter outputs a time-varying electric current into a transmitter coil.