Data and Tools
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The Wastewater Information System Tool User Guide
TWIST is designed to track information related to the facility served, permits, site evaluations, system types, services provided, and complaints.
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Physical Habitat
This page introduces the physical habitat module, when to list physical habitat as a candidate cause, ways to measure physical habitat, simple and detailed conceptual diagrams, and module references and literature reviews.
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More Information about the CyAN Project or the CyAN App
Contact information for the CyAN project.
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Detecting Anthrax, Botulinum Toxin, and Ricin – Immunoassay Test Strips
This assay is listed as Tier I for presumptive analysis of BoNTs in drinking water samples and Tier II for presumptive analysis of BoNTs in other environmental sample types. The lateral flow immunochromatographic assay uses two antibodies in combination to
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Yersinia pestis [Plague] – BSL-3
This method describes procedures for analysis of clinical samples and may be adapted for assessment of solid, particulate and liquid samples contaminated with Yersinia pestis using a culture method.
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EPA Method 300.1, Revision 1.0: Determination of Inorganic Anions in Drinking Water by Ion Chromatography
SAM lists this method for preparation and analysis of water samples for fluoride and fluorosilicic acid and analysis of prepared solid and water samples for sodium azide, using ion chromatography.
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Quality Assurance/Quality Control Guidance for Laboratories Performing PCR Analyses on Environmental Samples
This document is to inform users of proper QC checks during site characterization using real time PCR.
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Submitting Electronic Notification of Compliance Status to the Compliance and Emissions Data Reporting Interface (CEDRI)
This page contains a document to help you find out how to create and submit the Notification of Compliance Status by using CEDRI. This page also contains a User Guide for EPA's OAR CEDRI submission service
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2015 Municipal Solid Waste New Source Performance Standards (NSPS) and Emission Guidelines (EG) Data Files
The following are 2015 data files related to the Municipal Solid Waste Landfills: New Source Performance Standards (NSPS), Emission Guidelines (EG) rules.
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2016 Municipal Solid Waste New Source Performance Standards (NSPS) and Emission Guidelines (EG) Data Files
The following are 2016 data files related to the Municipal Solid Waste Landfills: New Source Performance Standards (NSPS), Emission Guidelines (EG) rules.
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FOIA Statute and EPA Regulations
FOIA Statutes and Regulations
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How to Cite CMAQ
These publications document the algorithms and performance of the CMAQ model. Publications recommended for citation are grouped according to topic and model version.
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Third Unregulated Contaminant Monitoring Rule
This page contains a list of UCMR 3 Contaminants and Analytical Methods
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Fourth Unregulated Contaminant Monitoring Rule
This page contains a list of UCMR 4 Contaminants and Analytical Methods
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Test 2025 - Radiological Decontamination Query Tool - Urban Wide-Area Decon - Search Results
Radiological Decontamination Query Tool - Urban Wide-Area Decon Search Results
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Pacific Southwest (Region 9) Targeted Brownfields Assessment (TBA) Application
EPA provides contractor assistance for property assessment to determine eligibility for up to $100,000 worth of technical assistance. Use this assessment form for properties in Arizona, California, Nevada, and Hawaii.
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Using Quality Program Standards for Environmental Information
The Agency uses the American National Standard ASQ/ANSI E4-2014, Specifications and Guidelines for Quality Systems for Environmental Data Collection and Environmental Technology Programs
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MRDL Form 3 - Quarterly Report for Daily and Monthly Chlorine Dioxide
Quarterly Reporting Form for Daily and Monthly Chlorine Dioxide residuals
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U.S. EPA Method 3051A: Microwave Assisted Acid Digestion of Sediments, Sludges, and Oils
SAM lists this method for preparation of solid samples to be analyzed for arsenic, osmium, thallium, titanium and vanadium.
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EPA Method EMSL-33: Isotopic Determination of Plutonium, Uranium, and Thorium in Water, Soil, Air, and Biological Tissue
SAM lists this method for the analysis of plutonium in drinking water by alpha spectrometry.