Data and Tools
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EPA IO [Inorganic] Compendium Method IO-5: Sampling and Analysis for Vapor and Particle Phase Mercury in Ambient Air Utilizing Cold Vapor Atomic Fluorescence Spectrometry (CVAFS)
This method describes procedures for preparation and analysis of air samples for vapor and particulate mercury using acid digestion and cold vapor atomic fluorescence spectrometry.
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EPA Air Method, Toxic Organics - 10A (TO-10A): Determination of Pesticides and Polychlorinated Biphenyls in Ambient Air Using Low Volume Polyurethane Foam (PUF) Sampling Followed by Gas Chromatographic/Multi-Detector Detection (GC/MD)
This method describes procedures for preparation and analysis of air samples for detection and measurement of select organic compounds, using solvent extraction and GC-MS.
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EPA Method 3135.2I: Cyanide, Total and Amenable in Aqueous and Solid Samples Automated Colorimetric With Manual Digestion
This method describes procedures for preparation and analysis of solid, water and wipe samples for detection and measurement of cyanide amendable to chlorination using acid digestion and spectrophotometry.
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EPA IO [Inorganic] Compendium Method IO-3.5: Determination of Metals in Ambient Particulate Matter Using Inductively Coupled Plasma/Mass Spectrometry (ICP-MS)
This method describes procedures for analysis of prepared air samples for detection and measurement of metal compounds as the total metal, using ICP-MS.
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EPA Method 538: Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS)
EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) lists this method for preparation and analysis of drinking water samples to detect and measure acephate, diisopropyl methylphosphonate (DIMP), methamidophos and thiofanox.
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EPA Method 8316 (SW-846): Acrylamide, Acrylonitrile and Acrolein by High Performance Liquid Chromatography (HPLC)
This method describes procedures for analysis of acrylamide, acrylonitrile and acrolein in water samples, using HPLC-UV detection.
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EPA Method 525.2: Determination of Organic Compounds in Drinking Water by Liquid-Solid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry
SAM lists this method for preparation and analysis of water samples for selected organic compounds using liquid-solid or solid-phase extraction and GC-MS.
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EPA Method 8318A (SW-846): N-Methylcarbamates by High Performance Liquid Chromatography (HPLC)
This method describes procedures for preparation and analysis of solid samples for methylcarbamates using solvent extraction and HPLC-FL detection.
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Recommendations for Estimating Transport Between Environmental Compartment (Fugacity) for Existing chemicals, including HPV chemicals
provides recommendations for estimating transport between compartments for chemicals
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Summary of Texas' Water Reuse Guideline or Regulation for Potable Water Reuse
Texas (State Regulation) | Source water: Treated municipal wastewater | End use: Potable water reuse
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Summary of Texas' Water Reuse Guideline or Regulation for Centralized Non-potable Reuse
Texas (State Regulation) | Source water: Treated municipal wastewater | End use: Centralized non-potable water reuse
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Fact Sheet: Watershed Boundaries for the 2002 Impaired Waters Baseline National Geospatial Dataset
Fact Sheet: Watershed Boundaries for the 2002 Impaired Waters Baseline National Geospatial Dataset
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Summary of Texas' Water Reuse Guideline or Regulation for Rainwater Collected Onsite for Potable Water Reuse
Texas (State Regulation) | Source water: Onsite collected waters | End use: Potable water reuse
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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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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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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.
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Designation and NAAQS Information Related to SO2 (2010 Standard)
Designation and NAAQS Information Related to SO2 (2010 Standard)
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Green Streets, Green Jobs, Green Towns (G3) Webcast Series
Green Streets, Green Jobs, Green Towns (G3) Webcast Series
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EPA Method 8260D (SW-846): Volatile Organic Compounds by Gas Chromatography-Mass Spectrometry (GC/MS)
This method provides procedures for analysis of solid, water and wipe samples to detect and measure selected volatile organic compounds, using purge-and-trap GC-MS.