{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3901642","name":"ELKTON EXIT 1","status":"Abandoned","status_date":"2022-08-17","mine_type":"Surface","coal_metal":"M","commodity":"Sand, Common","state":"SD","county":"Brookings","nearest_town":"BROOKINGS","operator_id":"0166534","operator_name":"WINTER INC","controller_id":"0150983","controller_name":"Ryan W Winter; William A Winter","district":"M4","office":"Fort Dodge IA Field Office","employees":0,"latitude":44.243056,"longitude":-96.751111},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":19},"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":"3901642","name":"ELKTON EXIT 1"},"operator":{"type":"operator","id":"0166534","name":"WINTER INC"},"controller":{"type":"controller","id":"0150983","name":"Ryan W Winter; William A Winter"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0166534","name":"WINTER INC"},"object":{"type":"mine","id":"3901642","name":"ELKTON EXIT 1"},"validFrom":"2019-08-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901642|0166534|2019-08-30|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0150983","name":"William A Winter et al"},"object":{"type":"mine","id":"3901642","name":"ELKTON EXIT 1"},"validFrom":"2019-08-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901642|0150983|2019-08-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0150983","name":"William A Winter et al"},"object":{"type":"operator","id":"0166534","name":"WINTER INC"},"validFrom":"2019-08-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"3901642","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901642|0166534|2019-08-30|0150983|2019-08-30|31178"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0150983","name":"Ryan W Winter et al"},"object":{"type":"operator","id":"0166534","name":"WINTER INC"},"validFrom":"2019-08-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"3901642","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901642|0166534|2019-08-30|0150983|2019-08-30|31179"}}],"coverage":{"historyRecords":2,"edgeCount":4,"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":"2022-08-17","lastDate":"2022-08-17","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":"2019-08-30","lastDate":"2019-08-30","metrics":{"recentRows":0,"currentOperatorTenures":2,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":3,"firstDate":"2020-08-10","lastDate":"2022-08-17","metrics":{"inspectors":3,"recentRows":2,"onSiteHours":5.75,"inspectionHours":23,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"833451","EVENT_NO":"6903769","INSPECTION_BEGIN_DT":"08/17/2022","INSPECTION_END_DT":"08/17/2022","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2022-08-17"},{"SOURCE_ROW_NUMBER":"1075934","EVENT_NO":"6903518","INSPECTION_BEGIN_DT":"09/22/2021","INSPECTION_END_DT":"09/22/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.5","SUM_TOTAL_ON_SITE_HOURS":"2.25","sourceDate":"2021-09-22"},{"SOURCE_ROW_NUMBER":"1049413","EVENT_NO":"6783879","INSPECTION_BEGIN_DT":"08/10/2020","INSPECTION_END_DT":"08/11/2020","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16.5","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2020-08-10"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":9,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2021-Q3":{"hours":0,"employees":0,"production":0},"2021-Q2":{"hours":0,"employees":0,"production":0},"2021-Q1":{"hours":45,"employees":1,"production":0},"2020-Q4":{"hours":984,"employees":2,"production":0},"2020-Q3":{"hours":1398,"employees":2,"production":0},"2020-Q2":{"hours":1853,"employees":2,"production":0},"2020-Q1":{"hours":1196,"employees":2,"production":0},"2019-Q4":{"hours":1333,"employees":2,"production":0},"2019-Q3":{"hours":1535,"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":3,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2019":{"hours":2868,"employees":2,"production":0},"2020":{"hours":5431,"employees":2,"production":0},"2021":{"hours":45,"employees":1,"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/3901642/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3901642/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":"3901642","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}