Data and Tools
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Route Blowdown Gas to Low Pressure System
Rerouting blowdown gas (from stations, equipment, or pipelines) to an existing low-pressure gas system can reduce the amount of high-pressure natural gas that would otherwise be emitted to the atmosphere.
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Centrifugal Compressors
A centrifugal compressor is used to increase the pressure of natural gas in pipelines. Centrifugal compressors contain rotating shafts that require seals to prevent the high-pressure natural gas from escaping the compressor casing.
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Summary of Radiological Stormwater Modeling Research
EPA is leading stormwater modeling studies that investigate how to simulate transport of radiological contamination in urban stormwater. Several publications are available to assist with more informed decisions after a radiological disaster.
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Quality Assurance Planning for Region 6
EPA Region 6 Systematic Quality Management and Quality Assurance Project Planning templates, tools, guidance, and information.
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Natural Gamma and Spectral Gamma Borehole Logging
Natural and spectral gamma borehole logging
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AP 42 Section 4.4 Polyester Resin Plastic Products Fabrication - Related Information
AP 42 Section 4.4 Polyester Resin Plastic Products Fabrication - Related Information
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EPA Urban Dynamometer Driving Schedule (UDDS)
The page contains a graph of the EPA Urban Dynamometer Driving Schedule (UDDS).
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EPA US06 or Supplemental Federal Test Procedure (SFTP)
The page contains a graph of the EPA US06 or Supplemental Federal Test Procedure (SFTP) driving cycle.
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LA92 "Unified" Dynamometer Driving Schedule
The page contains a graph of the LA92 “Unified” Dynamometer Driving Schedule.
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Vehicle Weight Classifications for the Emission Standards Reference Guide
This web page shows a chart that categorizes all vehicles by their Gross Vehicle Weight Rating.
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EPA Federal Test Procedure (FTP)
This page contains a graph of the EPA Federal Test Procedure (FTP) driving cycle.
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EPA SC03 Supplemental Federal Test Procedure (SFTP) with Air Conditioning
The page contains a graph of the EPA SC03 Supplemental Federal Test Procedures (SFTP) with air conditioning driving cycle.
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Instrument Air Controllers
Natural gas-powered pneumatic controllers can be converted to instrument air-powered pneumatic controllers by substituting the pressurized natural gas with compressed air.
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EPA Quality Management Tools for Organizations
Selection of Quality Management tools related to organizations/programs
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Photochemical Air Quality Modeling
Photochemical air quality models have become widely recognized and routinely utilized tools for regulatory analysis and attainment demonstrations by assessing the effectiveness of control strategies.
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Resources for Planning an Information Product
A definition of "information" as defined on the EPA's Information Quality Guidelines; resources for information products
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Air Toxics Monitoring QA Reports
This page contains Quality Assurance reports and associated documents for the Air Toxics monitoring program.
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AMTIC - PM Supersites
Background information and reports from the PM Supersite program.
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2011 Air Toxics Data Analysis Workshop
Copies of the presentations at the 2011 Air Toxics Data Analysis Workshop
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AVERT Tutorial: Getting Started – Identify Your AVERT Region(s)
Allows you to identify your AVERT regions.