{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"0503811","name":"R&R GRAVEL","status":"Abandoned","status_date":"2001-01-10","mine_type":"Surface","coal_metal":"M","commodity":"Dimension Stone NEC","state":"CO","county":"Larimer","nearest_town":"","operator_id":"L08768","operator_name":"R & R Gravel Inc","controller_id":"M06943","controller_name":"Weinland Construction Inc","district":"M6","office":"Denver CO Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":11},"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":"2026-10-17T05:35:58.500035+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":"0503811","name":"R&R GRAVEL"},"operator":{"type":"operator","id":"L08768","name":"R & R Gravel Inc"},"controller":{"type":"controller","id":"M06943","name":"Weinland Construction Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08767","name":"R & R Gravel Inc"},"object":{"type":"mine","id":"0503811","name":"R&R GRAVEL"},"validFrom":"1982-09-01","validTo":"1986-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|L08767|1982-09-01|1986-07-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06942","name":"Louis R  Asnicar"},"object":{"type":"mine","id":"0503811","name":"R&R GRAVEL"},"validFrom":"1982-09-01","validTo":"1986-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|M06942|1982-09-01|1986-07-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06942","name":"Louis R  Asnicar"},"object":{"type":"operator","id":"L08767","name":"R & R Gravel Inc"},"validFrom":"1982-09-01","validTo":"1986-07-09","current":false,"derived":true,"evidenceMineId":"0503811","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|L08767|1982-09-01|M06942|1982-09-01|139696"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08768","name":"R & R Gravel Inc"},"object":{"type":"mine","id":"0503811","name":"R&R GRAVEL"},"validFrom":"1986-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|L08768|1986-07-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06943","name":"Weinland Construction Inc Et Al"},"object":{"type":"mine","id":"0503811","name":"R&R GRAVEL"},"validFrom":"1986-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|M06943|1986-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06943","name":"Weinland Construction Inc Et Al"},"object":{"type":"operator","id":"L08768","name":"R & R Gravel Inc"},"validFrom":"1986-07-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"0503811","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0503811|L08768|1986-07-10|M06943|1986-07-10|139697"}}],"coverage":{"historyRecords":2,"edgeCount":6,"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":"2001-01-10","lastDate":"2001-01-10","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":2,"firstDate":"1982-09-01","lastDate":"1986-07-10","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":1,"firstDate":"2001-01-10","lastDate":"2001-01-10","metrics":{"inspectors":1,"recentRows":0,"onSiteHours":1,"inspectionHours":4,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"443422","EVENT_NO":"0529375","INSPECTION_BEGIN_DT":"01/10/2001","INSPECTION_END_DT":"01/10/2001","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2001-01-10"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":5,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2001-Q1":{"hours":0,"employees":0,"production":0},"2000-Q4":{"hours":224,"employees":7,"production":0},"2000-Q3":{"hours":96,"employees":3,"production":0},"2000-Q2":{"hours":136,"employees":4,"production":0},"2000-Q1":{"hours":1577,"employees":12,"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":2033,"employees":7,"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/0503811/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0503811/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":"0503811","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}