Table Name: TRI_FACILITY_NPDES

Description: The permit number of a specific discharge to a water body under the National Pollutant Discharge Elimination System (NPDES) of the Clean Water Act (CWA). Not all facilities will have a NPDES permit number. A facility may have multiple NPDES permit numbers. The NPDES permit number may not pertain to the toxic chemical reported to TRI. (Data in TRI_FACILITY_NPDES were submitted on EPA Form R or Form A, Part I, Section 4, 'Facility Identification'. See specific 'Data Source' for each column.)

Columns:

Envirofacts Data Service API for TRI_FACILITY_NPDES: Envirofacts has developed a RESTful data service API to all of its internal data holdings. This functionality provides a user of Envirofacts with the ability to query any table through the use of a URL. The default output is in XML, which can be utilized in other applications, as well as tools such as Microsoft Excel or Access. Output options of CSV and Excel can be requested in the URL. The entire Envirofacts database metadata is available online, so that all tables and columns within Envirofacts are documented. Having the table structures available in this manner makes most of Envirofacts data easily available through the service. More information is available on the Envirofacts Services page.

Below is a sample of the first 10 rows of data for the TRI_FACILITY_NPDES table. The URL used to produce this output is:
https://data.epa.gov/efservice/TRI_FACILITY_NPDES/ROWS/0:10/EXCEL