Data and Tools

Electric Glycol Circulation Pumps

Replacing a gas-assist glycol circulation pump with an electric glycol circulation pump avoids the emissions from the assist gas.

Electric Compressor Motors

Electric Compressor Motors: Installing an electric motor, in place of a gas-fired engine, can reduce methane emissions, increase operational efficiency, and reduce maintenance costs.

Desiccant Dehydrators

Replacing glycol dehydrators with desiccant dehydrators that use moisture absorbing salts to remove water reduces dehydrator emissions and also results in lower operating and maintenance costs.

Air Starters use compressed air, instead of natural gas, to start internal combustion engines for compressors, generators, and pumps. This mitigation option eliminates methane emissions from engine start-ups.

Advanced Methane Detection

Well Completions and Workovers

Well completion is the process of bringing an oil or gas well into production. Completion steps involve casing, cementing, perforating, hydraulically fracturing in the reservoir, expelling fluids, and installing the production valve.

Compressor Station Blowdowns

Compressor stations are taken offline (depressurized) for operational or maintenance needs. To take a compressor station offline, station or unit isolation valves are closed and the gas within the compressors is vented to the atmosphere (i.e., blowdown).

Compressor Starts

Compressors driven by gas engines are often equipped with small gas expansion turbine motors to start the engine. These motors initiate startup of the engine with expansion of pressurized gas across the starter turbine; that gas is then vented.

Marginal Conventional Wells

Well completion is the process of bringing an oil or gas well into production. Completion steps involve casing, cementing, perforating, hydraulically fracturing in the reservoir, expelling fluids, and installing the production valve.

Ecological Soil Screening Level Metal Contaminants

Description of metal chemicals that can contaminate soils.

City-based Optimization Model for Energy Technologies (COMET)

This page describes the COMET model for energy system scenario planning for cities and communities.

Technical Data and Reports on Ozone Measurements and SIP Status

EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress; and uses these to create reports, charts, and maps.

Environmental Data Maps for Indiana

Environmental data maps you can use to learn about Indiana.

Environmental Education Grant Descriptions (1992-2012)

Provides descriptions for all environmental education grants awarded between 1992 and 2010.

PM2.5 Gravimetric Round Robin

This page contains reports including the results from the annual PM2.5 Gravimetric Round Robin supplemental studies conducted by EPA's Office of Air Quality Planning and Standards.

2018 AirToxScreen: Emissions Update Document

AirToxScreen emissions update document

2017 AirToxScreen: Emissions Update Document

AirToxScreen emissions update document

Resources for Planning New Data Collections

Resources for planning new data collections.

Chesapeake Bay TMDL 2010 Webinar Series Dates and Topics

This page provides descriptions and dates of all of the presentations given as part of the 2010 webinar series during the development of the Chesapeake Bay TMDL.

Final Test Guidelines for Pesticides and Toxic Substances

Listing of the Final OCSPP Test Guidelines Series with links to the Series