{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3609767","name":"Two Mile Quarry","status":"Abandoned","status_date":"2009-07-21","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Slate","state":"PA","county":"Mckean","nearest_town":"Port Allegany","operator_id":"0101985","operator_name":"Cornelius Excavating","controller_id":"0086233","controller_name":"Randy L  Cornelius","district":"M2","office":"Warrendale PA Field Office","employees":0,"latitude":41.786322,"longitude":-78.140174},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":7},"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":"2026-10-13T11:19:05.459773+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":"3609767","name":"Two Mile Quarry"},"operator":{"type":"operator","id":"0101985","name":"Cornelius Excavating"},"controller":{"type":"controller","id":"0086233","name":"Randy L  Cornelius"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0086233","name":"Randy L  Cornelius"},"object":{"type":"mine","id":"3609767","name":"Two Mile Quarry"},"validFrom":"2009-05-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609767|0086233|2009-05-18|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0101985","name":"Cornelius Excavating"},"object":{"type":"mine","id":"3609767","name":"Two Mile Quarry"},"validFrom":"2009-06-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609767|0101985|2009-06-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0086233","name":"Randy L  Cornelius"},"object":{"type":"operator","id":"0101985","name":"Cornelius Excavating"},"validFrom":"2009-06-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609767","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609767|0101985|2009-06-10|0086233|2009-05-18|13859"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2009-07-21","lastDate":"2009-07-21","metrics":{},"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":1,"firstDate":"2009-06-10","lastDate":"2009-06-10","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":1,"firstDate":"2009-07-21","lastDate":"2009-07-21","metrics":{"inspectors":1,"recentRows":0,"onSiteHours":4,"inspectionHours":8.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"993927","EVENT_NO":"0902030","INSPECTION_BEGIN_DT":"07/21/2009","INSPECTION_END_DT":"07/21/2009","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.75","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2009-07-21"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2009-Q4":{"hours":480,"employees":4,"production":0},"2009-Q2":{"hours":1440,"employees":3,"production":0}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2009":{"hours":1920,"employees":4,"production":0}},"recentRecords":[]},{"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/3609767/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3609767/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":"3609767","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}