{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4401549","name":"Rl-1 Mine","status":"Abandoned and Sealed","status_date":"1994-12-07","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"VA","county":"Buchanan","nearest_town":"Keen Mountain","operator_id":"P22942","operator_name":"Koch Carbon Inc","controller_id":"C01148","controller_name":"MAPCO Inc","district":"C05","office":"Vansant VA Field Office","employees":0,"latitude":37.3433,"longitude":-82.0289},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":17},"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":"4401549","name":"Rl-1 Mine"},"operator":{"type":"operator","id":"P22942","name":"Koch Carbon Inc"},"controller":{"type":"controller","id":"C01148","name":"MAPCO Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02198","name":"Dilston Mining Corp"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1950-01-01","validTo":"1976-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P02198|1950-01-01|1976-09-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01875","name":"Ratliff Arthur M Jr"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"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":"4401549|C01875|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01875","name":"Ratliff Arthur M Jr"},"object":{"type":"operator","id":"P02198","name":"Dilston Mining Corp"},"validFrom":"1950-01-01","validTo":"1976-09-20","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P02198|1950-01-01|C01875|1950-01-01|56527"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02163","name":"Merritt Jerry L"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"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":"4401549|C02163|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05565","name":"Gulf + Western Industries Inc & Raven Smokeless Co"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1976-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C05565|1976-09-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P03287","name":"Raven Anchor Smokeless Coal Company"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1976-09-21","validTo":"1977-09-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P03287|1976-09-21|1977-09-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05565","name":"Gulf + Western Industries Inc & Raven Smokeless Co"},"object":{"type":"operator","id":"P03287","name":"Raven Anchor Smokeless Coal Company"},"validFrom":"1976-09-21","validTo":"1977-09-28","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P03287|1976-09-21|C05565|1976-09-01|69199"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06924","name":"Phoenix Mining Corp"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1977-09-29","validTo":"1978-06-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P06924|1977-09-29|1978-06-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00407","name":"Sizemore James N"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1977-09-29","validTo":"1978-06-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C00407|1977-09-29|1978-06-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00407","name":"Sizemore James N"},"object":{"type":"operator","id":"P06924","name":"Phoenix Mining Corp"},"validFrom":"1977-09-29","validTo":"1978-06-11","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P06924|1977-09-29|C00407|1977-09-29|47000"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08196","name":"Sizemore Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1978-06-12","validTo":"1978-10-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08196|1978-06-12|1978-10-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06593","name":"Sizemore Keith"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1978-06-12","validTo":"1978-10-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C06593|1978-06-12|1978-10-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06593","name":"Sizemore Keith"},"object":{"type":"operator","id":"P08196","name":"Sizemore Coal Company Inc"},"validFrom":"1978-06-12","validTo":"1978-10-29","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08196|1978-06-12|C06593|1978-06-12|72204"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08980","name":"Charlie Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1978-10-30","validTo":"1980-04-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08980|1978-10-30|1980-04-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07102","name":"Sturgill Billy R"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1978-10-30","validTo":"1980-04-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C07102|1978-10-30|1980-04-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07102","name":"Sturgill Billy R"},"object":{"type":"operator","id":"P08980","name":"Charlie Coal Company Inc"},"validFrom":"1978-10-30","validTo":"1980-04-16","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08980|1978-10-30|C07102|1978-10-30|73786"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09870","name":"Koch Industries Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1979-05-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|M09870|1979-05-31|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P08423","name":"Farwest Coal Company"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1980-04-17","validTo":"1980-05-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08423|1980-04-17|1980-05-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02163","name":"Merritt Jerry L"},"object":{"type":"operator","id":"P08423","name":"Farwest Coal Company"},"validFrom":"1980-04-17","validTo":"1980-05-07","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P08423|1980-04-17|C02163|1950-01-01|57666"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P10363","name":"L & S Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1980-05-08","validTo":"1980-11-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P10363|1980-05-08|1980-11-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07907","name":"Lambert Robert"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1980-05-08","validTo":"1980-11-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C07907|1980-05-08|1980-11-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07907","name":"Lambert Robert"},"object":{"type":"operator","id":"P10363","name":"L & S Coal Company Inc"},"validFrom":"1980-05-08","validTo":"1980-11-11","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P10363|1980-05-08|C07907|1980-05-08|75959"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11342","name":"Scottie Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1980-11-12","validTo":"1981-08-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P11342|1980-11-12|1981-08-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08530","name":"Miller Ralph"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1980-11-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C08530|1980-11-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08530","name":"Miller Ralph"},"object":{"type":"operator","id":"P11342","name":"Scottie Coal Company Inc"},"validFrom":"1980-11-12","validTo":"1981-08-17","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P11342|1980-11-12|C08530|1980-11-12|77557"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12458","name":"Evie Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1981-08-18","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P12458|1981-08-18|1987-04-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09207","name":"Vernie  Perkins"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1981-08-18","validTo":"1987-04-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C09207|1981-08-18|1987-04-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09207","name":"Vernie  Perkins"},"object":{"type":"operator","id":"P12458","name":"Evie Coal Company Inc"},"validFrom":"1981-08-18","validTo":"1987-04-01","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P12458|1981-08-18|C09207|1981-08-18|79090"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18487","name":"Oakwood Mining Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1987-04-02","validTo":"1993-01-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P18487|1987-04-02|1993-01-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12871","name":"Honaker Steve"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1987-04-02","validTo":"1993-01-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C12871|1987-04-02|1993-01-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12871","name":"Honaker Steve"},"object":{"type":"operator","id":"P18487","name":"Oakwood Mining Inc"},"validFrom":"1987-04-02","validTo":"1993-01-10","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P18487|1987-04-02|C12871|1987-04-02|88079"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22317","name":"Sherry Lynn Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-01-11","validTo":"1993-07-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22317|1993-01-11|1993-07-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14605","name":"Curtis Robert J"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-01-11","validTo":"1993-07-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C14605|1993-01-11|1993-07-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14605","name":"Curtis Robert J"},"object":{"type":"operator","id":"P22317","name":"Sherry Lynn Coal Company Inc"},"validFrom":"1993-01-11","validTo":"1993-07-01","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22317|1993-01-11|C14605|1993-01-11|93377"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22395","name":"Double A & A Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-07-02","validTo":"1993-10-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22395|1993-07-02|1993-10-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14871","name":"Anders Gregory"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-07-02","validTo":"1993-10-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C14871|1993-07-02|1993-10-24"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14871","name":"Anders Gregory"},"object":{"type":"operator","id":"P22395","name":"Double A & A Coal Company Inc"},"validFrom":"1993-07-02","validTo":"1993-10-24","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22395|1993-07-02|C14871|1993-07-02|94134"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22578","name":"S & J Coal Company Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-10-25","validTo":"1994-03-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22578|1993-10-25|1994-03-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11811","name":"Seay Joseph"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1993-10-25","validTo":"1994-04-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C11811|1993-10-25|1994-04-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11811","name":"Seay Joseph"},"object":{"type":"operator","id":"P22578","name":"S & J Coal Company Inc"},"validFrom":"1993-10-25","validTo":"1994-03-06","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22578|1993-10-25|C11811|1993-10-25|85482"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09444","name":"Koch Carbon Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1994-03-07","validTo":"1994-11-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P09444|1994-03-07|1994-11-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09870","name":"Koch Industries Inc"},"object":{"type":"operator","id":"P09444","name":"Koch Carbon Inc"},"validFrom":"1994-03-07","validTo":"1994-11-03","current":false,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P09444|1994-03-07|M09870|1979-05-31|147737"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22942","name":"Koch Carbon Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1994-11-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22942|1994-11-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01148","name":"MAPCO Inc"},"object":{"type":"mine","id":"4401549","name":"Rl-1 Mine"},"validFrom":"1994-11-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|C01148|1994-11-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01148","name":"MAPCO Inc"},"object":{"type":"operator","id":"P22942","name":"Koch Carbon Inc"},"validFrom":"1994-11-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4401549","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4401549|P22942|1994-11-04|C01148|1994-11-04|52596"}}],"coverage":{"historyRecords":15,"edgeCount":45,"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":"1994-12-07","lastDate":"1994-12-07","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":15,"firstDate":"1950-01-01","lastDate":"1994-11-04","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":14},"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/4401549/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4401549/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":"4401549","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}