{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1800487","name":"GARRETT COUNTY QUARRY","status":"Abandoned","status_date":"1999-04-22","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Sandstone","state":"MD","county":"Garrett","nearest_town":"","operator_id":"L01108","operator_name":"Keystone Lime Company Inc","controller_id":"0195422","controller_name":"Kendra K Folk; Melinda F Gibson; Beverly A Critchfield","district":"C03","office":"Morgantown WV Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":4,"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":"1800487","name":"GARRETT COUNTY QUARRY"},"operator":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"controller":{"type":"controller","id":"0195422","name":"Kendra K Folk; Melinda F Gibson; Beverly A Critchfield"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"object":{"type":"mine","id":"1800487","name":"GARRETT COUNTY QUARRY"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|L01108|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00967","name":"Mark  Folk"},"object":{"type":"mine","id":"1800487","name":"GARRETT COUNTY QUARRY"},"validFrom":"1950-01-01","validTo":"2025-08-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|M00967|1950-01-01|2025-08-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00967","name":"Mark  Folk"},"object":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"validFrom":"1950-01-01","validTo":"2025-08-14","current":false,"derived":true,"evidenceMineId":"1800487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|L01108|1950-01-01|M00967|1950-01-01|116199"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0195422","name":"Melinda F Gibson et al"},"object":{"type":"mine","id":"1800487","name":"GARRETT COUNTY QUARRY"},"validFrom":"2025-08-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|0195422|2025-08-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0195422","name":"Melinda F Gibson et al"},"object":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"validFrom":"2025-08-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|L01108|1950-01-01|0195422|2025-08-15|41735"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0195422","name":"Beverly A Critchfield et al"},"object":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"validFrom":"2025-08-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|L01108|1950-01-01|0195422|2025-08-15|41736"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0195422","name":"Kendra K Folk et al"},"object":{"type":"operator","id":"L01108","name":"Keystone Lime Company Inc"},"validFrom":"2025-08-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"1800487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1800487|L01108|1950-01-01|0195422|2025-08-15|41737"}}],"coverage":{"historyRecords":4,"edgeCount":7,"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":"1999-04-22","lastDate":"1999-04-22","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":4,"firstDate":"1950-01-01","lastDate":"1950-01-01","metrics":{"recentRows":0,"currentOperatorTenures":4,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000-Q1":{"hours":0,"employees":0,"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/1800487/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1800487/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":"1800487","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}