Science & Technology
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Holding Time & Preservation
Holding Time & Preservation, Frequent Questions
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8000 Series: Chromatographic Separation Methods
8000 Series: Chromatographic Separation Methods, Frequent questions
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Overview of Total Maximum Daily Load (TMDL) Progress Assessment
EPA assessed the progress 14 TMDLs in the SF Bay Delta Estuary (SF Bay Delta) to determine if the actions called for in the TMDL were being accomplished and water quality was improving. Status and water quality reports can be found here.
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AgSTAR Data and Trends
Provides information on current trends regarding anaerobic digestion in the U.S. Includes information numbers of projects and energy and environmental benefits.
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TMDL Progress Assessment Documents: Dissolved Oxygen
San Francisco Bay Delta water quality progress report focusing on the pesticides dissolved oxygen levels in the Stockton Deep Water Ship Channel.
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TMDL Progress Assessment Documents: Mercury
Collection of San Francisco Bay Delta Water Quality Progress Reports focusing on mercury/methylmercury.
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Open-Source Software and Code Repositories
Information about code and code repositories used in the development of applications at EPA
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Enterprise Architecture
EPA's Enterprise Architecture program supports the design of EPA systems and governs the technology used.
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eBEACHES Location Data SOP v2.1
eBEACHES Location Data SOP v2.1
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Petroleum Vapor Intrusion Database
Review a technical report evaluating the petroleum vapor intrusion database.
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Methylmercury and Irrigated Agriculture in the Sacramento-San Joaquin Delta
Key observations from as well as the final report, "Characterization of Methylmercury Loads for Irrigated Agriculture in the Delta".
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Project Profile: Barstow's Longview Farm
This project profile for Barstow’s Longview Farm, located in Hadley, Massachusetts, includes information about the farm's anaerobic digestion system, feedstock, benefits, and recognition.
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Sources of Indoor Particulate Matter (PM)
Learn about the many sources of Particulate Matter indoors and actions you can take to reduce or control them.
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Antimicrobial Testing Methods & Procedures: EQ-12-04
Information about ATMP - Hach’s Digital Titrator for Total Chlorine Titration - EQ-12
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Antimicrobial Testing Methods & Procedures: MB-41-02
Interim Method for Evaluating the Efficacy of Antimicrobial Surface Coatings
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Antimicrobial Testing Methods & Procedures Developed by EPA's Microbiology Laboratory
We develop antimicrobial testing methods and standard operating procedures to measure the effectiveness of hard surface disinfectants against a variety of microorganisms. Find methods and procedures for antimicrobial testing.
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Antimicrobial Testing Methods & Procedures: QC-22-07
Information about ATMP - VITEK 2 Compact: Use, Maintenance and Quality Control Procedures - QC-22
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Market Developments Around Climate-Related Financial Disclosures
A wide range of federal programs are available to help organizations identify and implement GHG reduction opportunities.
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Heavy-Duty Diesel Fuel Analysis
EPA's heavy-duty diesel fuel analysis program sought to quantify the hydrocarbon, NOx, and PM emission effects of diesel fuel parameters (such as cetane number, aromatics content, and fuel density) on various nonroad and highway heavy-duty diesel engines.
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EPAct/V2/E-89 Tier 2 Gasoline Fuel Effects Study
This study examined the exhaust emission impacts of changes in 5 fuel properties over a range covering current market fuels & potential mid-level ethanol blends.