NPDES Outfalls
Illinois EPA Bureau of Water ArcGIS layer of NPDES permitted facilities and discharge outfalls, including permit, activity, facility, industry, status, watershed, and coordinates.
Questions this answers
2 · best fit firstIllinois EPA's downloadable governmental outfall layer publishes facility and industry context, NPDES permit, activity, permit type, outfall type and status, watershed, location description, and point coordinates, directly answering the officially permitted outfall-profile question for a selected area.
The Illinois outfall layer publishes raw permit status and a last-changed date for each facility/outfall record; it directly answers raw reported standing when those values and the retrieval date are preserved, without inferring a permit term.
Fields it delivers
11 fieldsThe Illinois EPA service or export identifies an Illinois statewide regulatory-program dataset. Coverage is limited to regulated or participating sites within Illinois.
The agency or publisher provides this source through a directly accessible public API/service endpoint with no checkout, subscription, API key purchase, or stated access fee on the cited page or endpoint. The standing route is therefore free, even though the retired review did not resolve reuse rights.
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