Science & Technology
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Regional Screening Levels (RSLs) - Frequent Questions
Regional Screening Level RSL frequently asked question FAQ page provides risk assessors answers to common questions about the preliminary remediation goal PRG risk based concentration RBC and risk calculator for the assessment of human Health.
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Regional Removal Management Levels (RMLs) for Chemical Contaminants
The generic regional removal management levels for chemicals are available from this site for download in MS Excel and PDF format.
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Regional Screening Levels (RSLs) - What's New
Regional Screening Level RSL what’s new page informs risk assessors of the biannual updates to the website and the calculator for the assessment of human Health.
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Regional Screening Levels (RSLs) - User's Guide
Regional Screening Level RSL user guide provides extensive guidance for risk assessors doing Chemical Risk Assessment preliminary remediation goal PRG risk based concentration RBC and rick calculations for the assess
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Regional Screening Levels (RSLs)
Regional Screening Level RSL Home Page introduces risk assessors to Chemical Risk Assessment preliminary remediation goals PRG risk based concentration RBC and risk calculations for the assessment of human Health.
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Technical Data and Reports on Particulate Matter (PM) Measurements and SIP Status
EPA collects data from the states and regions on their air quality, including levels of pollutants such as PM, and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.
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Low Liquid Level UST Containment Sump Testing Procedures
Review the procedures for low liquid level hydrostatic testing as one method of meeting the requirements in 40 CFR 280.35 for periodically testing the integrity of certain containment sumps.
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Guide to Login for SeqAPASS Users
Login guide for external SeqAPASS users.
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Seismic Refraction
seismic refraction basic concepts
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Nuclear Methods
surface nuclear methods discription
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Time-Domain/Transient Electromagnetics (TDEM/TEM)
Time-Domain/Transient Electromagnetics (TDEM/TEM) surface geophysical method
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Geophysical Methods Introduction
Brief into to geophysical methods in the About panel
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Frequency Domain Electromagnetic (FDEM)
In the frequency domain method, the transmitter emits a sinusoidally varying current at a specific frequency.
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Water Facts Answer and Question Game
A card game to print and cut apart the individual cards. The game is played by one team reading the Answer from the card and the other team guessing the correct Question that relates to it.
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RadNet Databases and Reports
EPA’s RadNet data are available for viewing in a searchable database or as PDF reports. Historical and current RadNet monitoring data are used to estimate long-term trends in environmental radiation levels.
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Data, Models, and Other Technical Resources for a Watershed Approach
Technical memorandum as a series of publications designed to assist watershed projects, particularly those addressing nonpoint sources of pollution.
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Nonpoint Source Pollution: National Management Measures
A central listing of the various guidance on different nonpoint source topics.
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Report: Audit of the EPA’s Post-Award Oversight of Grants Awarded Under the Infrastructure Investment and Jobs Act
Report: Management Alert: Audit of the EPA’s Post Award Oversight of Grants Awarded Under the Infrastructure Investment and Jobs Act
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Water as a Climate Change Solution
Learn what EPA is doing to support states, communities, and the water sector in their efforts to adapt to a changing climate.
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California Clean Air Technology Initiative
The California Clean Air Technology Initiative is a partnership to develop clean air technologies for the San Joaquin Valley and South Coast Air Basins through collaborative projects in technology research, development, demonstration, and deployment.