WQX Implementation Resources and Downloads
A variety of resources are available to assist data partners with using WQX. The core implementation resources are available on the Exchange Network website. Downloadable files that give addtional information about WQX are also available below.
For information on initial steps that must be taken to submit data through WQX, please refer to the Submitting Data to EPA Using WQX page.
Resouces Available on the Exchange Network WQX site
- WQX Schema (v1.0 and v2.0) - The formal definition of the structure
and format of data being exchanged through WQX.
- WQX Flow Configuration Document (v1.0 and v2.0) - The principle document which captures the detailed data exchange processing rules governing WQX using narrative text, diagrams and examples. **Please note: The FCD has been updated for WQX v2.0, and includes information about submitting both v1.0 and v2.0 files. Users are advised to use the updated FCD, though the previous version is available for reference.
- WQX Data Exchange Template (Data Dictionary v1.0 and 2.0) - The template outlining each data element within the WQX schema along with definitions, validation rules, and example content. This is a more human-readable version of the WQX schema.
- Example XML Instance Files (v1.0 and v2.0) - Example submission WQX file and example return XML from WQX web services.
WQX Data Submital Instructions |
974 KB | |
Activity Type Definitions |
6 KB | |
WQX Domain Values ***Recent changes have been made to a subset of characteristic names in the Characteristic domain value list. The domain values include the new changed Characteristic domain value list. For a crosswalk of the changes, please see this Characteristic Roadmap (Excel file, 21 KB). |
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WQX Database Entity Relationship Diagram (ERD) |
56 KB | |
WQX v2.0 Example XML Files |
5 KB | |
WQX v1.0 XML Training Manual |
440 KB | |
SRS Names for Carbon, Nitrogen and Phosphorous Characteristics |
34 KB | |
Activity Group Examples |
21 KB |
You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader. |