Data and Tools
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Summary of Texas' Water Reuse Guideline or Regulation for Onsite Non-Potable Water Reuse
Texas (State Regulation) | Source water: Onsite collected waters | End use: Onsite non-potable reuse
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Receive Notifications about the HELP Model
Request to be notified when updates and bug fixes are made to the HELP Model.
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Air Quality Models
Air quality models use mathematical and numerical techniques to simulate the physical and chemical processes that affect air pollutants as they disperse and react in the atmosphere.
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Grants for your Region: Information that is specific to EPA Region 4
Detailed Region 4 grant information that you will need when applying for grants in Region 4.
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BASINS Version History
Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) version history shows the new features and changes to BASINS
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BASINS User Information and Guidance
This page provides links to guidance on how to use BASINS, including the User’s Manual, tutorials and training, technical notes, case studies, and publications that highlight the use of BASINS in various watershed analyses.
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RadNet Air Filter Analysis Results From New York City, NY
This page presents radiation air filter analysis data for New York City, NY from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Bismarck, ND
This page presents radiation air filter analysis data for Bismarck, ND from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Rapid City, SD
This page presents radiation air filter analysis data for Rapid City, SD from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Worcester, MA
This page presents radiation air filter analysis data for Worcester, MA from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Wilmington, NC
This page presents radiation air filter analysis data for Wilmington, NC from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Syracuse, NY
This page presents radiation air filter analysis data for Syracuse, NY from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From St. Paul, MN
This page presents radiation air filter analysis data for St. Paul, MN from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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Public Notification Templates for Community and Non-community Water Systems
A guide for community water systems and non-transient non-community water system providing provides instructions and includes templates that can be used for various types of public notices.
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WATERS Program Data
GIS from the Reach Address Database (RAD) must be joined/linked to corresponding program attributes using the below "Relational Key" information.
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RadNet Air Filter Analysis Results From St. Louis, MO
This page presents radiation air filter analysis data for St. Louis, MO from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Springfield, MO
This page presents radiation air filter analysis data for Springfield, MO from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Portsmouth, NH
This page presents radiation air filter analysis data for Portsmouth, NH from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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RadNet Air Filter Analysis Results From Omaha, NE
This page presents radiation air filter analysis data for Omaha, NE from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.
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EPA Method 5030C (SW-846): Purge-and-Trap for Aqueous Samples
SAM lists this method for preparation of water samples to be analyzed for select volatile organic compounds, using purge-and-trap GC.