{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"4700808","name":"221 Screen Plant","status":"Intermittent","status_date":"2022-01-01","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"WI","county":"Door","nearest_town":"Sturgeon Bay, WI","operator_id":"L02077","operator_name":"Door County Highway Department","controller_id":"M01861","controller_name":"Door County-WI","district":"M4","office":"Marquette MI Field Office","employees":2,"latitude":44.851389,"longitude":-87.453889},"coverage":{"contributingSources":5,"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":"2026-10-17T05:35:58.500035+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":"4700808","name":"221 Screen Plant"},"operator":{"type":"operator","id":"L02077","name":"Door County Highway Department"},"controller":{"type":"controller","id":"M01861","name":"Door County-WI"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02077","name":"Door County Highway Department"},"object":{"type":"mine","id":"4700808","name":"221 Screen Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4700808|L02077|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01861","name":"Door County-WI"},"object":{"type":"mine","id":"4700808","name":"221 Screen Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4700808|M01861|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01861","name":"Door County-WI"},"object":{"type":"operator","id":"L02077","name":"Door County Highway Department"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4700808","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4700808|L02077|1950-01-01|M01861|1950-01-01|121728"}}],"coverage":{"historyRecords":1,"edgeCount":3,"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":"2022-01-01","lastDate":"2022-01-01","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-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":6,"firstDate":"2022-03-07","lastDate":"2025-10-20","metrics":{"inspectors":6,"recentRows":6,"onSiteHours":7,"inspectionHours":20.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"605099","EVENT_NO":"F03298B","INSPECTION_BEGIN_DT":"10/20/2025","INSPECTION_END_DT":"10/20/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"1.75","sourceDate":"2025-10-20"},{"SOURCE_ROW_NUMBER":"462162","EVENT_NO":"F02EEEB","INSPECTION_BEGIN_DT":"09/18/2025","INSPECTION_END_DT":"09/18/2025","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.25","SUM_TOTAL_ON_SITE_HOURS":"2.25","sourceDate":"2025-09-18"},{"SOURCE_ROW_NUMBER":"36834","EVENT_NO":"F01730C","INSPECTION_BEGIN_DT":"08/19/2025","INSPECTION_END_DT":"08/19/2025","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2025-08-19"},{"SOURCE_ROW_NUMBER":"1146039","EVENT_NO":"6953297","INSPECTION_BEGIN_DT":"08/26/2024","INSPECTION_END_DT":"08/26/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1.5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2024-08-26"},{"SOURCE_ROW_NUMBER":"456455","EVENT_NO":"6904651","INSPECTION_BEGIN_DT":"08/01/2023","INSPECTION_END_DT":"08/01/2023","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":".75","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2023-08-01"},{"SOURCE_ROW_NUMBER":"213464","EVENT_NO":"6901528","INSPECTION_BEGIN_DT":"03/07/2022","INSPECTION_END_DT":"03/07/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.75","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2022-03-07"}]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":10,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2022":{"hours":1051,"employees":3,"production":0},"2023":{"hours":328,"employees":3,"production":0},"2024":{"hours":1158,"employees":3,"production":0},"2025":{"hours":855,"employees":3,"production":0},"2026":{"hours":223,"employees":2,"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/4700808/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4700808/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":"4700808","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}