{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"4201755","name":"BARRICK MERCUR GOLD MINE","status":"Abandoned","status_date":"2000-01-26","mine_type":"Surface","coal_metal":"M","commodity":"Gold Ore","state":"UT","county":"Tooele","nearest_town":"","operator_id":"L07856","operator_name":"Barrick Resources (Usa) Inc","controller_id":"M06246","controller_name":"Barrick Gold Corp","district":"M6","office":"Salt Lake City UT Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":7,"registeredSources":20,"sourceRows":30},"relationships":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-18T09:31:49.615908+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"4201755","name":"BARRICK MERCUR GOLD MINE"},"operator":{"type":"operator","id":"L07856","name":"Barrick Resources (Usa) Inc"},"controller":{"type":"controller","id":"M06246","name":"Barrick Gold Corp"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02271","name":"Texaco Inc"},"object":{"type":"mine","id":"4201755","name":"BARRICK MERCUR GOLD MINE"},"validFrom":"1981-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|M02271|1981-04-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05741","name":"Getty Mining Company"},"object":{"type":"mine","id":"4201755","name":"BARRICK MERCUR GOLD MINE"},"validFrom":"1981-09-01","validTo":"1985-07-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|L05741|1981-09-01|1985-07-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02271","name":"Texaco Inc"},"object":{"type":"operator","id":"L05741","name":"Getty Mining Company"},"validFrom":"1981-09-01","validTo":"1985-07-16","current":false,"derived":true,"evidenceMineId":"4201755","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|L05741|1981-09-01|M02271|1981-04-01|124645"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07856","name":"Barrick Resources (Usa) Inc"},"object":{"type":"mine","id":"4201755","name":"BARRICK MERCUR GOLD MINE"},"validFrom":"1985-07-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|L07856|1985-07-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06246","name":"Barrick Gold Corp"},"object":{"type":"mine","id":"4201755","name":"BARRICK MERCUR GOLD MINE"},"validFrom":"1985-07-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|M06246|1985-07-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06246","name":"Barrick Gold Corp"},"object":{"type":"operator","id":"L07856","name":"Barrick Resources (Usa) Inc"},"validFrom":"1985-07-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"4201755","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4201755|L07856|1985-07-17|M06246|1985-07-17|137985"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":1,"firstDate":"2000-05-09","lastDate":"2000-05-09","metrics":{"daysLost":5,"injuries":1,"fatalities":0,"recentRows":0,"restrictedDays":2,"contractorRecords":1},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"196574","DOCUMENT_NO":"220001650005","ACCIDENT_DT":"05/09/2000","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against a moving object","OCCUPATION":"Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer","NO_INJURIES":"1","DAYS_LOST":"5","NARRATIVE":"DRIVING MOXY DOWNHILL AND ROLLED INTO BURM. OPERATOR WAS DRIVING DOWNHILL AT A FAST SPEED & MADE IT DIFFICULT TO TURN CORNER. DRIVING FAST AND UNSAFE ON A NARROW, STEEP ROAD.","sourceDate":"2000-05-09"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2000-01-26","lastDate":"2000-01-26","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":17,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":7,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":2,"firstDate":"1981-09-01","lastDate":"1985-07-17","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":1,"firstDate":"2000-01-25","lastDate":"2000-01-25","metrics":{"inspectors":2,"recentRows":0,"onSiteHours":5,"inspectionHours":10,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"618980","EVENT_NO":"0508978","INSPECTION_BEGIN_DT":"01/25/2000","INSPECTION_END_DT":"01/26/2000","ACTIVITY_CODE":"37","ACTIVITY":"MISCELLANEOUS INSPECTION/INVESTIGATION","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2000-01-25"}]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]}],"safety":{"href":"/api/v1/mines/4201755/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4201755/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4201755","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}