{"@context":"https://schema.org","@type":"Dataset","@id":"https://asbestosatlas.org/shipyard/kaiser-shipyards#provenance","name":"Kaiser Shipyards — Evidence Provenance Record","description":"Machine-readable provenance for 2 evidence records documenting historical asbestos exposure at Kaiser Shipyards in Richmond, CA.","url":"https://asbestosatlas.org/shipyard/kaiser-shipyards/provenance.json","mainEntityOfPage":{"@type":"WebPage","@id":"https://asbestosatlas.org/shipyard/kaiser-shipyards#webpage"},"isPartOf":{"@type":"Dataset","@id":"https://asbestosatlas.org/data#dataset","name":"U.S. Shipyard Asbestos Exposure Dataset","identifier":"https://doi.org/10.5281/zenodo.22313866","url":"https://asbestosatlas.org/data","version":"1.6"},"version":"1.6","license":"https://creativecommons.org/licenses/by/4.0/","spatialCoverage":{"@type":"Place","@id":"https://asbestosatlas.org/shipyard/kaiser-shipyards#place","name":"Kaiser Shipyards"},"variableMeasured":[{"@type":"PropertyValue","propertyID":"Evidence records","value":2},{"@type":"PropertyValue","propertyID":"Evidence tier","value":"Tier 3"},{"@type":"PropertyValue","propertyID":"Direct source URLs","value":2},{"@type":"PropertyValue","propertyID":"Documented asbestos products","value":0}],"hasPart":[{"@type":"CreativeWork","@id":"https://asbestosatlas.org/shipyard/kaiser-shipyards/provenance.json#ev-kaiser-shipyards-epa-01","name":"ev-kaiser-shipyards-epa-01: environmental record","description":"Kaiser Richmond Shipyard (Richmond, CA) — Richmond Harbor Restoration Project includes former Kaiser shipyard site. Asbestos-containing materials documented in soils and structures. Kaiser Shipbuilding built 747 vessels 1940–1945; peak employment 90,000+ workers.","identifier":{"@type":"PropertyValue","propertyID":"Asbestos Atlas Evidence ID","value":"ev-kaiser-shipyards-epa-01"},"additionalProperty":[{"@type":"PropertyValue","propertyID":"Evidence tier","value":"Tier 3"},{"@type":"PropertyValue","propertyID":"Verification status","value":"verified"}],"url":"https://www.dtsc.ca.gov/SiteCleanup/Projects/Kaiser_Richmond_Shipyard.cfm","citation":"California DTSC Site ID 400137001; Richmond Harbor Restoration Project","temporalCoverage":"1940–1945 (operations); remediation 1990s–2010s","disambiguatingDescription":"Environmental record only. Note: HHE 77-24-366 is Kaiser Marine Facility Vallejo — NOT Kaiser Richmond. These are distinct sites. Worker exposure documentation must come from NARA or Navy BuMed records."},{"@type":"CreativeWork","@id":"https://asbestosatlas.org/shipyard/kaiser-shipyards/provenance.json#ev-kaiser-shipyards-epa-02","name":"ev-kaiser-shipyards-epa-02: environmental record","description":"Kaiser Alum & Chem Co Shipyard #2 listed under CERCLA; EPA RCRA ID CAD980637557; Richmond, CA 94804; EPA Region 9; NFRAP determination (site does not qualify for NPL based on existing information); documents former Kaiser shipyard property contamination.","identifier":{"@type":"PropertyValue","propertyID":"Asbestos Atlas Evidence ID","value":"ev-kaiser-shipyards-epa-02"},"additionalProperty":[{"@type":"PropertyValue","propertyID":"Evidence tier","value":"Tier 3"},{"@type":"PropertyValue","propertyID":"Verification status","value":"verified"}],"url":"https://cumulis.epa.gov/supercpad/CurSites/csitinfo.cfm?id=0901909","citation":"EPA CERCLA ID CAD980637557; Kaiser Alum & Chem Co Shipyard #2, Richmond CA","temporalCoverage":"1940-1980","disambiguatingDescription":"NFRAP status — site did not qualify for NPL. Environmental record documents former shipyard property; asbestos not listed as primary contaminant in CERCLA record."}],"distribution":{"@type":"DataDownload","encodingFormat":"application/ld+json","contentUrl":"https://asbestosatlas.org/shipyard/kaiser-shipyards/provenance.json"},"citation":"Asbestos Atlas. (2026). Kaiser Shipyards — Evidence Provenance Record. U.S. Shipyard Asbestos Exposure Dataset v1.6. https://doi.org/10.5281/zenodo.22313866","isBasedOn":{"@type":"CreativeWork","name":"Asbestos Atlas Methodology and Source Criteria","url":"https://asbestosatlas.org/methodology"}}