Learn the Issues
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WQX Flow Configuration 3.0
This document contains data validation rules, services and schema. The principle document which captures the detailed data exchange processing rules governing WQX using narrative text, diagrams and examples.
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Assessment Unit (AU) Batch Upload Instructions
Assessment Unit (AU) Batch Upload Instructions – This explains how to use the Assessment Unit (AU) Batch Upload, as of the August 2021 ATTAINS Release.
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How's My Waterway Fact Sheet
Find out the condition of your local waters by entering a location.
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About the Online ATTAINS Integrated Reports
About the Online ATTAINS Integrated Reports
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About the Online ATTAINS Separate Impaired and Assessed Waters Reports
About the Online ATTAINS Separate Impaired and Assessed Waters Reports
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Instructions for Using the Services Retrieve
Instructions for Using the Services_ Retrieve -
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Making the Digital Water Flow
Making the Digital Water Flow
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Adding ATTAINS Geospatial Data to ArcGIS Pro
Adding ATTAINS Geospatial Data to ArcGIS-Pro- This document explains how to access the ATTAINS Assessment geospatial service in ArcGIS Pro in a way that allows for querying and analysis of the data.
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EPA at Data Conferences and Meetings
streamlined location for those resources and activities demonstrated at the EPA booth or in EPA sessions, water data, systems
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How to Merge Assessment Units in ATTAINS
This explains how to merge a retired Assessment Unit with an active Assessment Unit
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Water Quality Portal Warehouse Watershed Coverage
Overview of STOret Warehouse Watershed
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Continuous Monitoring Data Sharing Strategy
Continuous Monitoring Data Sharing Strategy
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ATTAINS
The Assessment and Total Maximum Daily Load Tracking and Implementation System (ATTAINS) is an online system for accessing information about the conditions in the Nation’s surface waters.
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ATTAINS Program Information
The Assessment and Total Maximum Daily Load Tracking and Implementation System (ATTAINS) is an online system for accessing information about the conditions in the Nation’s surface waters.
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Training and Technical Assistance for Small Systems Historical Funding
Provides water and wastewater system staff and private well owners with training and tools to enhance system operations and management practices, and support EPA’s continuing efforts to protect public health and promote sustainability.
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SO2 Designations - Round 1 Illinois State Recommendation and EPA Response
SO2 Designations - State Recommendations and EPA Responses - Round 1 - Illinois
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Final Technical Support Documents for Area Designations Round 4
Final TSDs supporting the agency's final round four of area designations for the 2010 SO2 NAAQS
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Interpretation on Recycling Plastics from Shredder Residue
EPA is considering an interpretation of its regulations that would generally allow for recycling of plastic separated from shredder residue under the conditions described in the Voluntary Procedures for Recycling Plastics from Shredder Residue.
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Method 6C - Sulfur Dioxide - Instrumental Analyzer Procedure
CFR Promulgated Test Method 6C Determination of Sulfur Dioxide Emissions From Stationary Sources (Instrumental Analyzer Procedure)
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Method 3A - Oxygen and Carbon Dioxide Concentrations - Instrumental
CFR Promulgated Test Method 3A - Determination of Oxygen and Carbon Dioxide Concentrations in Emissions From Stationary Sources (Instrumental Analyzer Procedure).