{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0301157","name":"CHRISMAN ROCK QUARRY","status":"Abandoned","status_date":"1999-07-01","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Sandstone","state":"AR","county":"Franklin","nearest_town":"","operator_id":"L03193","operator_name":"Chrisman Ready-Mix Inc","controller_id":"M00903","controller_name":"Robert N  Chrisman","district":"M5","office":"Little Rock AR Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":9},"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":"0301157","name":"CHRISMAN ROCK QUARRY"},"operator":{"type":"operator","id":"L03193","name":"Chrisman Ready-Mix Inc"},"controller":{"type":"controller","id":"M00903","name":"Robert N  Chrisman"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03193","name":"Chrisman Ready-Mix Inc"},"object":{"type":"mine","id":"0301157","name":"CHRISMAN ROCK 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":"0301157|L03193|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00903","name":"Robert N  Chrisman"},"object":{"type":"mine","id":"0301157","name":"CHRISMAN ROCK 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":"0301157|M00903|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00903","name":"Robert N  Chrisman"},"object":{"type":"operator","id":"L03193","name":"Chrisman Ready-Mix Inc"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0301157","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0301157|L03193|1950-01-01|M00903|1950-01-01|115833"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":3,"firstDate":"2000-01-10","lastDate":"2000-05-15","metrics":{"daysLost":108,"injuries":3,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"168045","DOCUMENT_NO":"220010160147","ACCIDENT_DT":"05/15/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall from ladders","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"108","NARRATIVE":"FELL OFF LADDER AND TWISTED KNEE TORE ACL AND REQUIRED SURGERY.","sourceDate":"2000-05-15"},{"SOURCE_ROW_NUMBER":"39070","DOCUMENT_NO":"220000450115","ACCIDENT_DT":"01/15/2000","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall from machine","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","NARRATIVE":"WHILE EE WAS GETTING OFF CONVEYOR BELT. HE SLIPPED AND CUT LEG.","sourceDate":"2000-01-15"},{"SOURCE_ROW_NUMBER":"26260","DOCUMENT_NO":"220000450116","ACCIDENT_DT":"01/10/2000","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Mine manager, Mine foreman, Mine owner","NO_INJURIES":"1","NARRATIVE":"SHOVLING BEARING ON SHAFT AND CUT FINGER THRU NAIL.","sourceDate":"2000-01-10"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"1999-07-01","lastDate":"1999-07-01","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":"1950-01-01","lastDate":"1950-01-01","metrics":{"recentRows":0,"currentOperatorTenures":1,"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":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000-Q2":{"hours":1989,"employees":3,"production":0},"2000-Q1":{"hours":1869,"employees":2,"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":{"2000":{"hours":3858,"employees":3,"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/0301157/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0301157/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":"0301157","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}