{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4703845","name":"Screen Plant 2","status":"Intermittent","status_date":"2025-07-03","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"WI","county":"Langlade","nearest_town":"Elcho, WI","operator_id":"L35298","operator_name":"Krueger & Stienfest, Inc.","controller_id":"M35298","controller_name":"Monte S  Krueger; Travis C  Krueger","district":"M4","office":"Marquette MI Field Office","employees":2,"latitude":45.124167,"longitude":-89.149444},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":47},"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":"4703845","name":"Screen Plant 2"},"operator":{"type":"operator","id":"L35298","name":"Krueger & Stienfest, Inc."},"controller":{"type":"controller","id":"M35298","name":"Monte S  Krueger; Travis C  Krueger"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M35298","name":"Travis C  Krueger et al"},"object":{"type":"mine","id":"4703845","name":"Screen Plant 2"},"validFrom":"1992-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703845|M35298|1992-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L35298","name":"Krueger & Stienfest Inc"},"object":{"type":"mine","id":"4703845","name":"Screen Plant 2"},"validFrom":"2019-05-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703845|L35298|2019-05-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M35298","name":"Travis C  Krueger et al"},"object":{"type":"operator","id":"L35298","name":"Krueger & Stienfest Inc"},"validFrom":"2019-05-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703845","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703845|L35298|2019-05-07|M35298|1992-06-01|164199"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M35298","name":"Monte S  Krueger et al"},"object":{"type":"operator","id":"L35298","name":"Krueger & Stienfest Inc"},"validFrom":"2019-05-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703845","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4703845|L35298|2019-05-07|M35298|1992-06-01|164200"}}],"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":"2025-07-03","lastDate":"2025-07-03","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":"2019-05-07","lastDate":"2019-05-07","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":4,"firstDate":"2020-07-29","lastDate":"2026-08-25","metrics":{"inspectors":4,"recentRows":3,"onSiteHours":1.75,"inspectionHours":7.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"419327","EVENT_NO":"F02F06B","INSPECTION_BEGIN_DT":"08/25/2026","INSPECTION_END_DT":"08/25/2026","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1.5","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"1116808","EVENT_NO":"6909913","INSPECTION_BEGIN_DT":"08/23/2023","INSPECTION_END_DT":"08/23/2023","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.75","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2023-08-23"},{"SOURCE_ROW_NUMBER":"542319","EVENT_NO":"6839954","INSPECTION_BEGIN_DT":"08/11/2021","INSPECTION_END_DT":"08/11/2021","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":".5","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2021-08-11"},{"SOURCE_ROW_NUMBER":"75431","EVENT_NO":"6839327","INSPECTION_BEGIN_DT":"07/29/2020","INSPECTION_END_DT":"07/29/2020","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2020-07-29"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":31,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":291,"employees":3,"production":0},"2026-Q1":{"hours":138,"employees":2,"production":0},"2025-Q4":{"hours":116,"employees":2,"production":0},"2025-Q3":{"hours":159,"employees":3,"production":0},"2022-Q3":{"hours":260,"employees":3,"production":0},"2021-Q4":{"hours":2,"employees":1,"production":0},"2021-Q3":{"hours":2,"employees":1,"production":0},"2021-Q2":{"hours":2,"employees":1,"production":0},"2021-Q1":{"hours":2,"employees":1,"production":0},"2020-Q4":{"hours":2,"employees":1,"production":0},"2020-Q3":{"hours":2,"employees":1,"production":0},"2020-Q2":{"hours":2,"employees":1,"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":8,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2019":{"hours":6,"employees":1,"production":0},"2020":{"hours":8,"employees":1,"production":0},"2021":{"hours":8,"employees":1,"production":0},"2022":{"hours":260,"employees":3,"production":0},"2025":{"hours":275,"employees":3,"production":0},"2026":{"hours":429,"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/4703845/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4703845/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":"4703845","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}