{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4102647","name":"Big Sandy Sand Pit","status":"Abandoned","status_date":"1990-11-29","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"TX","county":"Orange","nearest_town":"","operator_id":"L10398","operator_name":"Big Sandy Sand Pit","controller_id":"M08101","controller_name":"Windham Morris B","district":"M5","office":"Dallas TX Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":6},"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":"4102647","name":"Big Sandy Sand Pit"},"operator":{"type":"operator","id":"L10398","name":"Big Sandy Sand Pit"},"controller":{"type":"controller","id":"M08101","name":"Windham Morris B"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06992","name":"Big Sandy Sand Pit"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1950-01-01","validTo":"1984-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06992|1950-01-01|1984-02-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05575","name":"Bryson Robert H"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1950-01-01","validTo":"1988-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|M05575|1950-01-01|1988-07-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05575","name":"Bryson Robert H"},"object":{"type":"operator","id":"L06992","name":"Big Sandy Sand Pit"},"validFrom":"1950-01-01","validTo":"1984-02-01","current":false,"derived":true,"evidenceMineId":"4102647","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06992|1950-01-01|M05575|1950-01-01|134900"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06993","name":"Little Sandy Sand Pit"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1984-02-02","validTo":"1985-01-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06993|1984-02-02|1985-01-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05576","name":"Anderson Hill"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1984-02-02","validTo":"1985-12-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|M05576|1984-02-02|1985-12-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05576","name":"Anderson Hill"},"object":{"type":"operator","id":"L06993","name":"Little Sandy Sand Pit"},"validFrom":"1984-02-02","validTo":"1985-01-29","current":false,"derived":true,"evidenceMineId":"4102647","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06993|1984-02-02|M05576|1984-02-02|134903"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06992","name":"Big Sandy Sand Pit"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1985-01-30","validTo":"1988-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06992|1985-01-30|1988-07-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05575","name":"Bryson Robert H"},"object":{"type":"operator","id":"L06992","name":"Big Sandy Sand Pit"},"validFrom":"1985-01-30","validTo":"1988-07-13","current":false,"derived":true,"evidenceMineId":"4102647","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L06992|1985-01-30|M05575|1950-01-01|134901"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10398","name":"Big Sandy Sand Pit"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1988-07-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L10398|1988-07-14|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08101","name":"Windham Morris B"},"object":{"type":"mine","id":"4102647","name":"Big Sandy Sand Pit"},"validFrom":"1988-07-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|M08101|1988-07-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08101","name":"Windham Morris B"},"object":{"type":"operator","id":"L10398","name":"Big Sandy Sand Pit"},"validFrom":"1988-07-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"4102647","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4102647|L10398|1988-07-14|M08101|1988-07-14|142692"}}],"coverage":{"historyRecords":4,"edgeCount":11,"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":"1990-11-29","lastDate":"1990-11-29","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":"1988-07-14","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"periods":{},"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/4102647/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4102647/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":"4102647","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}