Science & Technology
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Lowest Concentration Minimum Reporting Level (LCMRL) Calculator
The Lowest Concentration Minimum Reporting Level (LCMRL) calculator constructs conditional (on spiking concentration) mean and variance models for analytical measurements.
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Analytical Methods Developed by EPA for Analysis of Unregulated Contaminants
Links to methods for the analysis of unregulated contaminants in support of the Unregulated Contaminant Monitoring Rule (UCMR).
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TENORM: Hard Rock Metal Mining
This page has information about TENORM in the hard rock mine industry, including gold, silver, zircon and titanium.
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TENORM: Fertilizer and Fertilizer Production Wastes
Phosphate rock is used in the production of phosphate fertilizers. Due to its chemical properties, phosphate rock may contain significant quantities of naturally occurring radioactive materials (NORM).
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Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM)
This page provides an overview of TENORM and provides links to additional information about industries and sources and publications and documents related to TENORM.
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Steps to Safe Renovation and Repair Activities
Highlights precautionary measures and best work practices to follow when conducting a repair or renovation in older buildings where PCB-containing building material could be encountered.
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Risk Analysis Checklist for Biogas Projects
Risk Analysis and Technical Review Checklist for Preparing Biogas Project Plans
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AgSTAR Webinar: AgSTAR’s Operator Handbook
Presentations from the webinar
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Land Use, Land-Use Change, and Forestry Sector Emissions and Sequestration
Sources of greenhouse gas emissions, inculding electricity production, tranportation, industry, agriculture, and forestry.
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Understanding Global Warming Potentials
This page includes information on the global warming impacts of different gases.
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Overview of Greenhouse Gases
Information on emissions and removals of the main greenhouse gases to and from the atmosphere.
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Stakeholder Process for Natural Gas and Petroleum Systems in the 1990-2023 Inventory
This page provides information about stakeholder meetings and webinars on updates under consideration for the 1990-2022 GHG Inventory (to be released in April 2024).
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Estuary Data Mapper (EDM), Web Coverage Service (WCS), and Decision Support Tools
Estuary Data Mapper (EDM) uses web coverage service (WCS) calls to retrieve, stream, and save data. This page describes how to tap into those WCS commands for your own applications and usages.
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Pathogen Equivalency Committee
Information related to Pathogen Equivalency Committee
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Pathogens and Vector Attraction in Sewage Sludge
Provides guidance on controlling pathogens in sewage sludge and options for reducing vector attraction
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Application Guidelines
Application Guidelines for Equivalency Recommendation by the U.S. EPA’s Pathogen Equivalency Committee (PEC)
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POTW Sludge Sampling and Analysis Guidance Document
In view of the variability of municipal sludge quality,appropriate procedures must be followed to collect and analyze samples that accurately represent each POTW's sludge quality.
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Fact Sheet: Heat Drying
Heat drying is an effective biosolids management option for many facilities that desire to reduce biosolids volume while also producing an endproduct that can be beneficially reused.
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Study: Multimedia Sampling During the Application of Biosolids on a Land Test Site
This project integrated research from several disciplines to evaluate the effects of land application of biosolids on air and volatile emissions and soil microbial characteristics. Measurements included chemical, physical, and microbiological analytes.