{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2901820","name":"Arroyo Mine #1","status":"Abandoned and Sealed","status_date":"1986-04-21","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"NM","county":"Sandoval","nearest_town":"San Ysidro","operator_id":"P15364","operator_name":"Firchau Industries","controller_id":"C07424","controller_name":"Firchau Albert J","district":"C09","office":"Farmington NM Field Office","employees":0,"latitude":9.833333,"longitude":-95},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":5},"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":"2901820","name":"Arroyo Mine #1"},"operator":{"type":"operator","id":"P15364","name":"Firchau Industries"},"controller":{"type":"controller","id":"C07424","name":"Firchau Albert J"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10693","name":"Arroyo Mining Company Inc"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1980-05-01","validTo":"1983-08-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P10693|1980-05-01|1983-08-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07424","name":"Firchau Albert J"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1980-05-01","validTo":"1983-08-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|C07424|1980-05-01|1983-08-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07424","name":"Firchau Albert J"},"object":{"type":"operator","id":"P10693","name":"Arroyo Mining Company Inc"},"validFrom":"1980-05-01","validTo":"1983-08-30","current":false,"derived":true,"evidenceMineId":"2901820","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P10693|1980-05-01|C07424|1980-05-01|74543"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14892","name":"Integrated Native Resources Inc"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1983-08-31","validTo":"1984-03-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P14892|1983-08-31|1984-03-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10754","name":"Peone Charles E"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1983-08-31","validTo":"1984-03-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|C10754|1983-08-31|1984-03-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10754","name":"Peone Charles E"},"object":{"type":"operator","id":"P14892","name":"Integrated Native Resources Inc"},"validFrom":"1983-08-31","validTo":"1984-03-19","current":false,"derived":true,"evidenceMineId":"2901820","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P14892|1983-08-31|C10754|1983-08-31|82702"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15364","name":"Firchau Industries"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1984-03-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P15364|1984-03-20|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07424","name":"Firchau Albert J"},"object":{"type":"mine","id":"2901820","name":"Arroyo Mine #1"},"validFrom":"1984-03-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|C07424|1984-03-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07424","name":"Firchau Albert J"},"object":{"type":"operator","id":"P15364","name":"Firchau Industries"},"validFrom":"1984-03-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"2901820","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2901820|P15364|1984-03-20|C07424|1984-03-20|74544"}}],"coverage":{"historyRecords":3,"edgeCount":9,"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":"1986-04-21","lastDate":"1986-04-21","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":3,"firstDate":"1980-05-01","lastDate":"1984-03-20","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":2},"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/2901820/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2901820/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":"2901820","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}