Environmental contaminant
A chemical, material, or contaminant class reported as present at an environmental site or in a sampled medium.
Sources that carry it
34 sourcesPublic statewide ArcGIS inventory of Arizona properties accepted into the ADEQ Brownfields Grant Program, including site identity, status, location, contamination, redevelopment, parcel, grantee, funding, and program dates.
NYSDEC Brownfield Cleanup Program (BCP) sites — the BCP slice (program_type=BCP) of NY Open Data's "Environmental Remediation Sites" dataset (Socrata c6ci-rzpg). 1,833 distinct brownfield sites statewide. The raw dataset is denormalized one row per site×operable-unit×contaminant (~67.7k BCP rows); fetch.py aggregates server-side via $group=program_number to one clean row per site. Each site is real property whose redevelopment may be complicated by hazardous waste/petroleum/contaminants — matching Chubb's BROWNFIELDS definition. Carries facility name, address, locality, county, ZIP, WGS84 lat/lon, and owner fields.
Illinois EPA brownfields inventory of redevelopment and assessment sites, including program identifiers, property location, funding and investigation details, completion date, acreage, and contaminant category.
South Carolina SARR public records for non-responsible-party voluntary cleanup contracts in the Brownfields program, including amendments and inurements; responsible-party contracts and EPA grant-funded assessments are excluded.
Sample-level Massachusetts public water system PFAS test results, including analyte, collection date, result, limits, method and sampling location.
PFAS analytical results for raw or untreated drinking-water sampling points, supplied through NJDEP Drinking Water Viewer.
New York remediation sites with engineering controls in place. From NYSDEC 'Environmental Remediation Sites' (data.ny.gov Socrata c6ci-rzpg, denormalized across BCP/VCP/ERP/HW/RCRA). Filtered to control_code='Environmental Easement' OR control_type='ENG' = 853 distinct sites (deduped to program_number). Site name, address, coordinates. Single-attribute: ENG_CONTROLS. Pure institutional-control sites (deed restriction/notice only) excluded — they belong to the separate AUL attribute.
New York State DEC Environmental Remediation Sites dataset published on the NY Open Data portal via the Socrata SODA API. Filtered to program_type='HW' (State Superfund / Inactive Hazardous Waste Disposal Sites), this Source provides site name, address, county, municipality, site classification, and program status for all HW-program sites statewide. Coordinates are included for the majority of sites. Fetched as paginated JSON and conformed to the ds_ scheme with ds_HWS presence boolean.
Pennsylvania DEP's public Hazardous Site Response Actions List is an annually refreshed SSRS CSV report derived from eFACTS and covering hazardous-site response work since 1988. The integrated product filters the report to HSCA initiations and emits 1,554 response-action × environmental-medium × substance rows across about 489 sites. It preserves facility identity, owner/operator, address, coordinates, Pennsylvania Priority List dates, response actions, media, and contaminant columns, while prepending normalized location fields and an HSCA indicator.
Florida Institutional Controls Registry (ICR) — contaminated sites subject to institutional controls (recorded deed restrictions/covenants/use restrictions) under Ch. 62-780 F.A.C. FDEP DWM ICR polygon layer 12; 2,628 sites with site name, address, and control-boundary centroid coordinates. INST_CONTROL is the registry's primary attribute (every ICR site has an institutional control). Single-attribute source. NOTE: same ICR layer 12 as fl_dep__institutional_controls_registry (#266/ENG_CONTROLS) — kept separate per attribute by dev decision.
New York environmental-remediation sites whose NYSDEC control_type is INST, including institutional controls such as environmental easements, deed restrictions, decision documents, and environmental notices.
Recorded Indiana environmental restrictive covenants and deed notices represented as polygons.
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Florida Institutional Controls Registry (ICR) — FDEP Division of Waste Management registry of contaminated sites with institutional and/or engineering controls (Ch. 62-780 F.A.C.). Polygon layer 12 on the FDEP Geospatial Open Data MapServer; 2,628 sites with site name, address, and control-boundary centroid coordinates. Serves ENG_CONTROLS: FDEP publishes no standalone engineering-controls dataset, and in FL an engineering control requires a recorded institutional control, so EC sites are a subset of the ICR (the EC subset is not separately flagged in the public data — full ICR shipped).
Statewide Act 2 completed-sites inventory at site grain, including contaminants, remediation standards, approvals, address, and coordinates.
Master mapped listing of sites under all Maryland Land Restoration Program tracks.
WVDEP Dedicated Tanks portal's Active and Closed LAST Events By County reports, combined by the verified integration. Records describe leaking aboveground-storage-tank cases, responsible parties, substances, tanks, waterways, capacity, case dates, and program indicators; the report address is the responsible party mailing address rather than the leak site.
All leaking underground storage tank incidents published by DC DOEE through the DC GIS feature layer, from historical records through the present. Each row represents a distinct case number and includes open, closed, no-further-action, administrative-closure, and related statuses; the live endpoint returned 1,952 records on 2026-07-13.
Hazardous-waste and state cleanup sites selected from MDE’s Land Restoration Program layer.
NY DEC's shared Environmental Remediation Sites Socrata dataset (c6ci-rzpg), filtered via a facility-name substring heuristic (MGP/MANUFACTURED GAS/GAS WORKS/GAS LIGHT) since DEC publishes no dedicated MGP dataset or program_type flag. 225 program-enrollment rows (HW 140/VCP 64/BCP 20/ERP 1) across 186 distinct physical MGP sites statewide; the raw undeduplicated count was chosen over the site-deduplicated count to avoid inventing a cross-program dedup key DEC doesn't provide.
Brownfield-flagged sites from MDE’s Land Restoration Program sites layer.
NPDES permittees with PFAS discharge monitoring or effluent limits, sourced from EPA's PFAS Analytic Tools 'Discharge Monitoring Reports' layer (ArcGIS FeatureServer layer 15, PAT_Discharge_Monitoring_Reports), itself built from ICIS-NPDES DMR data already restricted upstream to PFAS-family parameters. The raw layer is 96,155 monitoring-event rows (facility x outfall x PFAS parameter x year); fetch.py aggregates client-side to one row per unique NPDES_Permit_Number (1,110 permittees), rolling up distinct parameters monitored, whether any parameter carries an effluent limit, most recent monitoring year, and outfall count. No street address or ZIP is published by this dataset; location is carried by lat/lon (99.91% fill).
ADEQ's public quality-assured ArcGIS table of Arizona drinking-water PFAS laboratory results, with one record per sample and tested compound, detection notation, concentration, water-system linkage, and location.
South Carolina SARR cleanup sites with recorded restrictive covenants or other activity and use limitations, published from the SARR Public Records ArcGIS layer.
South Carolina state-program hazardous-site cleanup inventory covering State Voluntary Cleanup and State Remediation tracks, deduplicated to site grain.
Historical roster of Indiana State Cleanup Program sites and contaminants.
EPA's national UST Finder ArcGIS FeatureServer (Releases layer, item US_Underground_Storage_Tank_2019), server-side filtered to State='New Jersey' — 16,816 leaking underground storage tank (LUST) release records covering New Jersey's full release history regardless of status (4,672 Open, 12,144 No Further Action/closed). This is a NJ-filtered slice of EPA's UST Finder Releases dataset, not a source published directly by NJDEP; NJDEP's own DataMiner LUST portal was investigated first and abandoned due to an hCaptcha wall with no programmatic bypass. Note: this data has been verified to overlap byte-for-byte (identical LUST_ID sets) with the separately-scoped us_epa__ust_finder source, which draws from a newer-but-data-identical ArcGIS item (UST_Finder_Feature_Layer_2). Kept as a standalone single-attribute source per established developer precedent (Integrations 216/294) rather than folded into the multi-attribute source.
Statewide Vermont brownfields point layer with site identity, location, contamination, restrictions, and program status.
Statewide Vermont hazardous-sites inventory covering active and historical sites with site identity, address, priority, status, contamination source, contaminants, record links, and coordinates.
Filtered view of Vermont hazardous sites where a land-use restriction is recorded, exposing site identity, location, status, contamination context, closure information, and document links.
Voluntary Cleanup Program sites selected from MDE’s Land Restoration Program layer.
NYSDEC Voluntary Cleanup Program sites selected from the statewide Environmental Remediation Sites dataset using program_type VCP, with site identity, address, coordinates, status, operable-unit, contaminant, and control context.
South Carolina Voluntary Cleanup Program sites from the SARR Public Records ArcGIS layer, filtered to State Voluntary Cleanup and deduplicated by master site number.
ADEQ's statewide ArcGIS inventory of sites participating in the Voluntary Remediation Program, with status, location, contaminants of concern, and affected media.
Statewide downloadable register of reportable oil and hazardous-material releases under Chapter 21E, keyed by Release Tracking Number.
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