The data that answers it

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Arizona Department of Environmental Q… Primary fit
ADEQ Brownfields Grant Sites

The layer reports raw site status, accepted and closed dates, affected media, contamination type, and redevelopment information.

Free APIFull file Subnational 13 fields
New York State Department of Environm… Primary fit
Brownfield Cleanup Program

BCP rows expose raw siteclass, project phase, actual-or-planned completion date, waste name, and contaminant at site/operable-unit grain.

Free APIFull file Subnational 12 fields
South Carolina Department of Environm… Primary fit
Brownfields Voluntary Cleanup Contracts

The layer reports contaminants, planned response action, raw contract/programme status, master status, and contracting context.

Free APIFull file Subnational 12 fields
Wisconsin Department of Natural Resou… Primary fit
BRRTS Brownfields

BRRTS facility-activity rows provide raw activity type, status and status code, start and end dates, last action, risk and programme flags, and contamination indicators for identified remediation activities.

Free Full file Subnational 17 fields
Wisconsin Department of Natural Resou… Primary fit
BRRTS Environmental Repair Program Sites

The schema supplies raw activity status with start and end dates plus continuing-obligation, offsite, and sediment indicators where populated.

Free APIFull file Subnational 10 fields
Wisconsin Department of Natural Resou… Primary fit
Dry Cleaner Facility Listing

The listing reports raw cleanup status and links every activity to a public BRRTS detail page. The reviewed detail page supplies OPEN status, start/end-date fields, reported PCE/TCE substances, and dated notification, assessment, investigation, correspondence, and remediation actions. This directly supports raw lifecycle, contaminant context, and dated milestones for identified dry-cleaner remediation cases; absent values remain unknown and neither OPEN nor CLOSED proves present contamination or remedy effectiveness.

Free Full file Subnational 6 fields
New York State Department of Environm… Primary fit
Environmental Remediation Sites

The HW slice exposes raw siteclass, project phase, actual-or-planned completion date, waste name, and contaminant.

Free APIFull file Subnational 11 fields
New Jersey Department of Environmenta… Primary fit
Industrial Site Recovery Act Cases

The Source reports raw case status, closed date, confirmed contamination, remedial level, remediation initiation date, permit/control context, and data-load date.

Free APIFull file Subnational 21 fields
New Jersey Department of Environmenta… Primary fit
KCSNJ Removed, Confirmed-Contaminated Open Cases

The Source reports confirmed-contamination and non-closed context with raw case status, closed date, remedial level, remediation initiation date, controls, and data-load date.

Free APIFull file Subnational 19 fields
New Jersey Department of Environmenta… Primary fit
Known Contaminated Site List for New Jersey

The Source reports raw status and status date, remedial classification, control statuses and dates, and data-load date.

Free APIFull file Subnational 10 fields
New Jersey Department of Environmenta… Primary fit
Known Contaminated Sites — Closed Historic Cases

The Source reports raw CASE_STATUS, CLOSED_DATE, CONFIRMED_CONTAMINATION, REMEDIAL_LEVEL, DATE_REMEDIATION_INITIATED, post-remedial-monitoring and remedial-action-permit indicators, control context, and DATALOAD_DATE for identified closed historic cases. Unreported contaminants, affected media, and present standing remain unknown.

Free APIFull file Subnational 18 fields
Pennsylvania Department of Environmen… Primary fit
Land Recycling Completed Sites

The output reports contaminant, remediation standard, and PA DEP approval date for site-level completed activity.

Free Full file Subnational 4 fields
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Maryland Department of the Environment Primary fit
Land Restoration Program Sites

For an identified LRP site, Maryland's official schema reports contaminant-of-concern indicators by medium for chlorinated solvents/VOCs, metals, PAHs, PCBs, pesticides, and petroleum; Assessment Ongoing, Remediation Ongoing, and enforcement indicators; archived, withdrawn, and determination-issued outcomes; and fiscal years opened, closed, and reopened. These fields directly provide raw contamination context, lifecycle state, outcome, and dated fiscal-year milestones where populated. Preserve raw values and source vintage, treat absent facets as unknown, and do not infer remedy effectiveness, current contamination, a complete chronology, a recorded land-use restriction from lucoversig, or any physical engineering control.

Free APIBatch enrichmentFull file Subnational 12 fields
Maryland Department of the Environment Primary fit
LRP Hazardous Sites

The records report contaminants by medium, assessment/remediation/enforcement state, archived closure, determination outcomes, and opened/closed/reopened fiscal years.

Free APIBatch enrichmentFull file Subnational 15 fields
Maryland Department of the Environment Primary fit
Maryland Brownfields Sites

The records report contaminant classes by medium, assessment/remediation/enforcement indicators, determination outcomes, and fiscal years opened, closed, or reopened.

Free APIBatch enrichmentFull file Subnational 12 fields
U.S. Environmental Protection Agency … Primary fit
Region 1 Tribal Brownfields Accomplishments

The workbook reports agreement status, assessment- and cleanup-completion dates, acceptance date, accomplishment year, and assessed, cleaned-up, and ready-for-anticipated-use flags.

Free Full file Unknown 11 fields
Florida Department of Environmental P… Primary fit
Responsible Party Cleanup Sites

Florida DEP's public cleanup layer returns site/facility and programme identity, raw site and programme status, cleanup phase, discharge date, address, and mapped coordinates for Responsible Party Cleanup sites. It does not document contaminants or affected media, closure/completion milestone dates, focal-parcel match method, source vintage, or retrieval date; roster presence and raw status must not be converted into inferred current standing.

Free APIFull file Subnational 8 fields
Florida Department of Environmental P… Primary fit
State Tribal Response Sites

For an identified SRP site, Florida DEP's public ArcGIS schema supplies raw programme status, site status, site phase, discharge date, collection date, and linked-document values. These fields directly provide official lifecycle and dated-milestone evidence even when contaminants, affected media, closure outcome, or other facets are absent for a row. Preserve raw values, authority, identifiers, row grain, date meanings, source vintage, and retrieval date; absent fields remain unknown, and status labels do not prove present contamination or remedy effectiveness.

Free APIFull file Subnational 9 fields
Vermont Department of Environmental C… Primary fit
Vermont Brownfields

The layer reports contaminants, contamination source, priority, raw site and programme status, closure date, and document link.

Free APIFull file Subnational 10 fields
Vermont Department of Environmental C… Primary fit
Vermont Hazardous Sites

For an identified site, the layer reports raw site status, priority, contaminants, and closure date.

Free APIFull file Subnational 10 fields
Maryland Department of the Environment Primary fit
Voluntary Cleanup Program Sites

The layer reports contaminant/medium indicators, assessment and remediation phases, enforcement, withdrawal, closure/reopening and determination outcomes, and fiscal-year milestones.

Free APIBatch enrichmentFull file Subnational 12 fields
New York State Department of Environm… Primary fit
Voluntary Cleanup Program Sites

VCP rows expose raw siteclass, project phase, actual-or-planned completion date, waste name, and contaminant.

Free APIFull file Subnational 11 fields
Arizona Department of Environmental Q… Primary fit
Voluntary Remediation Program Sites

The layer reports raw site status, contaminants of concern, affected media, acceptance date, and closure date.

Free APIFull file Subnational 12 fields
Massachusetts Department of Environme… Primary fit
Waste Site Cleanup Notifications and Status

MassDEP states that its public lookup summarizes where a site is in the assessment and cleanup process and what has been done. The downloadable product includes current status plus linked action, chemical, location, and source files; the harvested primary file verifies CURRENT_ST, CURRENT_DA, PHASE, and RAO_CLASS fields keyed by RTN. Preserve raw MassDEP meanings and do not infer remedy effectiveness, liability, or current contamination.

Free Full file Subnational 10 fields
Pennsylvania Department of Environmen… Strong fit
Act 2 Deed-Acknowledgment Sites

For the deed-acknowledgment subset, the output reports remediation standard and PA DEP approval date, documenting completion and a dated milestone.

Free Full file Subnational 3 fields
Georgia Environmental Protection Divi… Strong fit
Brownfield Public Record

The listing reports cleanup-plan and cleanup-complete dates, achieved risk-reduction standard, and a coarse use-restriction indicator.

Free Full file Subnational 6 fields
Florida Department of Environmental P… Strong fit
Brownfield Sites

The layer exposes raw remediation value plus agreement, SRCO, verification, and source-update dates and supporting documents.

Free APIBatch enrichmentFull file Subnational 9 fields
Illinois Environmental Protection Age… Strong fit
Brownfields

The Illinois Brownfields layer returns investigation-initiation and completion fields plus a contaminant category for each identified site, providing dated investigation or completion and contamination context.

Free API Subnational 9 fields
Delaware Department of Natural Resour… Strong fit
HSCA Sites

The HSCA layer reports the agency’s raw Open/Closed cleanup status for each identified site.

Free APIFull file Subnational 3 fields
Maryland Department of the Environment Strong fit
LRP Determinations

At closure-determination record grain, Maryland MDE publishes the determination type—NFA, NFRD, or Certificate of Completion—issue date, superseded indicator, continued-groundwater-remediation indicator, long-term groundwater and indoor-air monitoring requirements, annual-report requirement, and last-inspection date. This directly supplies an official closure or completion outcome and dated lifecycle indicators for the identified parcel/site; it does not supply contaminant identity, affected media, every investigation phase, or a complete remediation chronology.

Free APIBatch enrichmentFull file Subnational 19 fields
New York State Department of Environm… Strong fit
Manufactured Gas Plants

The MGP heuristic subset exposes raw siteclass, project phase, actual-or-planned completion date, waste and contaminant values, and programme/site identity.

Free APIFull file Subnational 10 fields
North Carolina Department of Environm… Strong fit
NC Brownfields Location View

For each identified NCBP project, the public layer returns a raw programme status and Status_Date. These fields support dated lifecycle status but do not supply contaminant or affected-medium detail.

Free APIFull file Subnational 6 fields
South Carolina Department of Environm… Strong fit
SARR State Cleanup Sites

The output reports contaminants, programme/type, raw status, and master status for identified cleanup cases.

Free APIFull file Subnational 9 fields
Illinois Environmental Protection Age… Strong fit
Site Remediation Program NFR Letter Registry

For an identified SRP site, the site-aggregated product reports issuance of one or more NFR determinations, NfrLetterCount, EarliestNfrLetterDate, LatestNfrLetterDate, the latest determination's comprehensive/focused scope and land-use value, and the raw ActiveSite indicator. These provide official completion-determination, dated-milestone, and raw activity-status evidence. Preserve site-aggregate grain and raw values; an NFR does not prove current absence of contamination or remedy effectiveness, ActiveSite has no status-effective date, and the Source does not supply contaminants, affected media, or a complete phase chronology.

Free APIFull file Subnational 15 fields
Illinois Environmental Protection Age… Strong fit
Site Remediation Program Sites Export

For an identified SRP project, the Sites CSV supplies the raw ActiveSite indicator and dated ReceivedSaDate and FourYLetterDate milestones. ActiveSite answers the raw active/inactive lifecycle facet as of source vintage or retrieval time; the two dates retain their named agency milestone meanings. The Source does not report contaminants, affected media, a fuller phase vocabulary, a closure outcome, or a status-effective date, and Section 4(y) must not be reinterpreted as an NFR or remedy-effectiveness finding.

Free APIFull file Subnational 8 fields
Indiana Department of Environmental M… Strong fit
State Cleanup Site List

For each identified State Cleanup site, the official July 2026 workbook reports a raw Status plus Media Name, Contaminant, and Chemical where populated. Observed raw status values include Active, Inactive, Delisted, NFA, NFA (conditional), REF, and LTS; preserve them without decoding or normalizing unsupported semantics. The workbook supplies no dated case milestone or status-effective date, blanks remain unknown, repeated chemical rows remain one site/case, and the answer must be pinned to the page's July 2026 update and retrieval date.

Free Full file Subnational 5 fields
South Carolina Department of Environm… Strong fit
Voluntary Cleanup Sites

The product publishes raw master status and case status with programme, type, contaminants, and site identity.

Free APIFull file Subnational 10 fields
Virginia Department of Environmental … Strong fit
Voluntary Remediation Program Site Addresses

The layer reports primary and secondary raw status plus alternate description where supplied; no milestone date is documented.

Free APIFull file Subnational 2 fields
New Jersey Department of Environmenta… Supporting fit
Brownfield Inventory for New Jersey

The Source reports case status and remedial level plus data-load date; absent milestone and control detail remains unknown.

Free APIFull file Subnational 12 fields
Delaware Department of Natural Resour… Supporting fit
Certified Brownfields

The list supplies the raw certified-site outcome and a site-specific certification date; contaminant, phase, cleanup, and remedy-effectiveness detail remains unknown.

Free Full file Subnational 4 fields
Georgia Environmental Protection Divi… Supporting fit
Hazardous Site Inventory

The inventory supplies raw site class, investigation-or-cleanup funding category, and list date; later lifecycle facets remain unknown unless in the linked summary.

Free Full file Subnational 8 fields
Maryland Department of the Environment Supporting fit
Oil Control Program Case Information Search

For each identified Oil Control Program case, MDE's standing public search reports the agency's raw case status; the reviewed live results displayed CLOSED and the form can restrict results to open cases. This directly supplies one lifecycle facet for a parcel-reachable remediation case when pinned to retrieval time. Preserve the raw OPEN or CLOSED vocabulary, OCP case number, facility or site and address context, and retrieval date. The product does not document a status-effective date, contaminants, affected media, investigation or cleanup phase, milestone dates, or the meaning of closure, so none may be inferred and CLOSED must not be treated as proof of remedy effectiveness or present environmental condition.

Free Batch enrichment Subnational 2 fields
Indiana Department of Environmental M… Supporting fit
Remediation Brownfields

The Indiana layer emits a raw STATUS value for each identified Brownfields site. It is useful status evidence only when pinned to source vintage or retrieval date; the schema has no separate contaminant, milestone, closure-date, or status-date field, so none may be inferred.

Free APIFull file Subnational 6 fields
Florida Department of Environmental P… Supporting fit
Site Investigation Section Sites

The documented Site Investigation Section scope and programme key provide investigation-phase context; row-level status, closure, and milestone dates remain unknown.

Free APIFull file Subnational 4 fields
Massachusetts Department of Environme… Supporting fit
Tier Classified 21E Sites

The layer emits raw TIERI, TIERII, and TIER1D classifications for currently active identified RTNs; closure or milestone dates are not supplied.

Free APIFull file Subnational 4 fields
Delaware Department of Natural Resour… Supporting fit
Voluntary Cleanup Program Sites

The VCP subset reports raw Open/Closed cleanup status; temporal standing beyond source vintage and retrieval remains unknown.

Free APIFull file Subnational 3 fields

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