The data that answers it

Ranked by fit · best first
Texas Commission on Environmental Qua… Primary fit
Emergency Response Spills

TCEQ's standing Socrata spill-notification endpoint publishes one row per incident tracking number with start and received dates, physical location and coordinates, potential source, material, amount and unit, classification, effect, nature, receiving water, responsible-party description, and incident narrative.

Free API Subnational 18 fields
Illinois Environmental Protection Age… Primary fit
Office of Emergency Response Incidents

Illinois EPA's public incident tracker supplies incident number, name and type; incident start values; material and amount released; location and coordinates; responsible party; and comments.

Free APIFull file Subnational 12 fields
Oklahoma Corporation Commission Primary fit
OGCD Incidents

The public statewide queryable and extractable layer identifies each oil-and-gas incident by incident number and publishes incident type, complaint and confirmation status, initial and investigation dates, coordinates, oil released and recovered, affected water body, and reported versus confirmed wildlife effects.

Free APIFull file Subnational 20 fields
North Carolina Department of Environm… Primary fit
Sanitary Sewer Overflows

The public NC DEQ layer identifies each reported overflow or bypass by incident number and supplies report, start, and end dates; incident location and coordinates; released and waterbody-reaching volumes; affected waterbody; fish-kill indicator; cause; and facility context.

Free APIFull file Subnational 13 fields
New York State Department of Environm… Primary fit
Spill Incidents

New York's published statewide archive explicitly contains reported petroleum and hazardous-material spills with unique Spill Number, facility and address, spill and received dates, source and contributing factor, affected waterbody, material name and family, quantity and units, and recovered amount. Preserve Spill Number grouping, material-row repetition, date meanings, zero-as-unknown quantity convention, missing coordinates, and archive coverage limits.

Free APIFull file Subnational 11 fields
Connecticut Department of Energy and … Primary fit
Spill Incidents, January 1996–June 2022

CT DEEP's public incident data supplies case identity, reported and release times, reported release location, substance and quantities in stated units, release type, affected waterbody and media, cause, and implicated party.

Free APIFull file Subnational 15 fields
Ohio Environmental Protection Agency Primary fit
Spills and Releases As Reported to Ohio EPA (since May 2017)

Ohio EPA's standing dataset identifies reported incidents by case number and publishes reported product, amount and unit, reported date, incident-site coordinates and locality, and associated waterway. Reports are not necessarily confirmed spills.

Free APIFull file Subnational 9 fields
Delaware Department of Natural Resour… Strong fit
DERNS Release Notifications

DNREC's standing public DERNS listing exposes event-level Release ID, release time, reported location or facility, released substance, extremely-hazardous indicator, and whether notification was issued.

Free Full file Subnational 5 fields
Hawaii Department of Health Strong fit
iHEER Public Incidents

Hawaii DOH's public iHEER API exposes hazardous-substance incident identity, case and release details, release and report dates, addresses, impact, and nested public location geometry. The public view may omit ongoing or coordinate-less incidents.

Free APIFull file Subnational 1 field
West Virginia Department of Environme… Strong fit
Leaking Aboveground Storage Tank Events

The combined public Active and Closed LAST reports key leaking-aboveground-storage-tank events by Leak # and publish tank, substance, capacity, county, affected-stream context, and suspected and confirmed release dates. RP Address is mailing, not leak-site, data.

Free Full file Subnational 10 fields
Florida Department of Environmental P… Strong fit
Swo Incidents

Florida's queryable and exportable SWO hazardous-material and petroleum incident archive publishes incident ID/number/type/name, report and release dates, county, coordinates, address, chemical and CAS identifier, released amount, narrative, and report URL.

Free APIFull file Subnational 14 fields
Massachusetts Department of Environme… Strong fit
Waste Site Cleanup Notifications and Status

MassDEP describes more than 40,000 reported oil or hazardous-material releases and publishes RTN-keyed primary release information with linked chemical, location-type, and release-source files. Harvested primary fields also identify notification, category or classification, and the oil-or-hazardous-material indication. This is reported-release evidence; preserve notification basis and do not infer confirmed causation, exact quantity, or response outcome where absent.

Free Full file Subnational 10 fields
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New Jersey Department of Environmenta… Supporting fit
AFFF Incident Reports

The standing NJDEP public-records archive identifies AFFF/firefighting-foam incident notifications by incident date, municipality, reported street or route, linked incident ID, and an aqueous-foam indicator.

Free Full file Subnational 3 fields
U.S. Coast Guard National Response Ce… Supporting fit
Ga Incident Reports

The us_uscg_nrc/ga_incident_reports NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 6 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Al

The us_uscg_nrc/incident_reports_al NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Az

The us_uscg_nrc/incident_reports_az NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Ky

The us_uscg_nrc/incident_reports_ky NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports La

The us_uscg_nrc/incident_reports_la NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 9 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Mn

The us_uscg_nrc/incident_reports_mn NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Mo

The us_uscg_nrc/incident_reports_mo NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 6 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Nj

The us_uscg_nrc/incident_reports_nj NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Pa

The us_uscg_nrc/incident_reports_pa NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Sc

The us_uscg_nrc/incident_reports_sc NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 9 fields
U.S. Coast Guard National Response Ce… Supporting fit
Incident Reports Wi

The us_uscg_nrc/incident_reports_wi NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 8 fields
U.S. Coast Guard National Response Ce… Supporting fit
National Incident Reports

The us_uscg_nrc/incident_reports NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file National US 8 fields
Virginia Department of Environmental … Supporting fit
Petroleum Releases

The public case-level ArcGIS layer identifies petroleum-release events by composite RST_ID and PCNUM and publishes release-reported date, suspect-versus-confirm indicator, federal-regulated-tank indicator, release name, facility identifier, and agency classification fields. Unpublished material, quantity, cause, and receptor facets remain unclaimed.

Free APIFull file Subnational 8 fields
Virginia Department of Environmental … Supporting fit
PReP Pollution Reports

The public statewide pollution-event layer identifies each report by PRP_REPORT_ID and publishes report-received and incident date-times, site name, address, and point geometry. Unpublished material, quantity, cause, and receptor facets remain unclaimed.

Free APIFull file Subnational 4 fields
U.S. Coast Guard National Response Ce… Supporting fit
Wv Incident Reports

The us_uscg_nrc/wv_incident_reports NRC full-file view supplies sequence key, potential-release flag, type, reported cause/narrative, incident date/time basis, and reported location. It is an overlapping initial, unvalidated notification view and supplies no response, closure, or tank-origin finding.

Free Full file Subnational 6 fields
Indiana Department of Environmental M… Minor fit
Spills

Indiana's official queryable Spills layer returns emergency-response spill points with distinct regulatory-program identifiers, physical addresses, municipalities, coordinates, and mapped-location accuracy. It substantiates reported spill identity and location, but not material, quantity, occurrence date, cause, affected medium, response, or closure; DATA_COLLECTION_DATE is not an occurrence date.

Free APIFull file Subnational 5 fields

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