Data and Tools
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Air Quality Design Values
This is where EPA publishes the annual design values updates for the criteria pollutants.
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Tools about Septic Systems for Homeowners
Tools to help homeowners properly manage their septic systems.
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The Wastewater Information System Tool Flyer
EPA has developed an off-the-shelf user-friendly management tool formatted in Microsoft Access that features web-style buttons, drop-down boxes for data entry, and intuitive use features.
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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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Data from the National Aquatic Resource Surveys
The following data are available for download as text (.txt) files. Each .txt data file has a companion metadata file (.txt) that lists the field labels and descriptions for each variable.
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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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Subscribe to the EPA Grants Update Listserv
Online form to sign up for the grants listserv, Listserv subscription form
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FOIA Statute and EPA Regulations
FOIA Statutes and Regulations
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Operating Permit Timeline for Oklahoma
Part 70 Title V Operating Permit Timeline for Oklahoma
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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