{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"5001775","name":"Dena Portable Screen Plant # 1","status":"Abandoned","status_date":"2024-10-01","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"AK","county":"Denali","nearest_town":"Denali","operator_id":"0051656","operator_name":"USDI - National Park Service","controller_id":"M01776","controller_name":"United States Government","district":"M7","office":"Anchorage AK Field Office","employees":0,"latitude":63.729722,"longitude":-148.766389},"coverage":{"contributingSources":7,"registeredSources":20,"sourceRows":35},"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":"5001775","name":"Dena Portable Screen Plant # 1"},"operator":{"type":"operator","id":"0051656","name":"USDI - National Park Service"},"controller":{"type":"controller","id":"M01776","name":"United States Government"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051656","name":"USDI - National Park Service"},"object":{"type":"mine","id":"5001775","name":"Dena Portable Screen Plant # 1"},"validFrom":"2003-05-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"5001775|0051656|2003-05-27|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01776","name":"United States Government"},"object":{"type":"mine","id":"5001775","name":"Dena Portable Screen Plant # 1"},"validFrom":"2003-05-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"5001775|M01776|2003-05-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01776","name":"United States Government"},"object":{"type":"operator","id":"0051656","name":"USDI - National Park Service"},"validFrom":"2003-05-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"5001775","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"5001775|0051656|2003-05-27|M01776|2003-05-27|121139"}}],"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":1,"firstDate":"2008-08-01","lastDate":"2008-08-01","metrics":{"daysLost":0,"injuries":1,"fatalities":0,"recentRows":0,"restrictedDays":2,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"197730","DOCUMENT_NO":"220082190015","ACCIDENT_DT":"08/01/2008","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against a moving object","OCCUPATION":"Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Within pit boundries- First loader operator runs into second loader operator causing injury to second loader operator. Injuries to second loader operator are stiff neck, sore back, bruised shoulder. No equipment damage.","sourceDate":"2008-08-01"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2024-10-01","lastDate":"2024-10-01","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":"2003-05-27","lastDate":"2003-05-27","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":15,"firstDate":"2003-09-15","lastDate":"2019-06-29","metrics":{"inspectors":16,"recentRows":0,"onSiteHours":60.5,"inspectionHours":171.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"852289","EVENT_NO":"1124392","INSPECTION_BEGIN_DT":"06/29/2019","INSPECTION_END_DT":"06/29/2019","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2019-06-29"},{"SOURCE_ROW_NUMBER":"136247","EVENT_NO":"1153841","INSPECTION_BEGIN_DT":"08/10/2018","INSPECTION_END_DT":"08/10/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.25","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2018-08-10"},{"SOURCE_ROW_NUMBER":"1006922","EVENT_NO":"6722268","INSPECTION_BEGIN_DT":"07/11/2017","INSPECTION_END_DT":"07/11/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2017-07-11"},{"SOURCE_ROW_NUMBER":"637761","EVENT_NO":"1140463","INSPECTION_BEGIN_DT":"07/07/2016","INSPECTION_END_DT":"07/07/2016","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7.75","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2016-07-07"},{"SOURCE_ROW_NUMBER":"460115","EVENT_NO":"6596408","INSPECTION_BEGIN_DT":"07/31/2015","INSPECTION_END_DT":"07/31/2015","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2015-07-31"},{"SOURCE_ROW_NUMBER":"321508","EVENT_NO":"6593772","INSPECTION_BEGIN_DT":"06/17/2014","INSPECTION_END_DT":"06/18/2014","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"22","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2014-06-17"},{"SOURCE_ROW_NUMBER":"242917","EVENT_NO":"1140989","INSPECTION_BEGIN_DT":"06/10/2011","INSPECTION_END_DT":"06/13/2011","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13","SUM_TOTAL_ON_SITE_HOURS":"3.5","sourceDate":"2011-06-10"},{"SOURCE_ROW_NUMBER":"215491","EVENT_NO":"1140938","INSPECTION_BEGIN_DT":"05/26/2010","INSPECTION_END_DT":"06/01/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"23.5","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2010-05-26"},{"SOURCE_ROW_NUMBER":"455042","EVENT_NO":"1153009","INSPECTION_BEGIN_DT":"08/24/2009","INSPECTION_END_DT":"08/26/2009","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.25","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2009-08-24"},{"SOURCE_ROW_NUMBER":"827985","EVENT_NO":"1140269","INSPECTION_BEGIN_DT":"07/24/2008","INSPECTION_END_DT":"07/28/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.75","SUM_TOTAL_ON_SITE_HOURS":"3.25","sourceDate":"2008-07-24"},{"SOURCE_ROW_NUMBER":"826870","EVENT_NO":"1124654","INSPECTION_BEGIN_DT":"08/23/2006","INSPECTION_END_DT":"08/23/2006","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"2.25","sourceDate":"2006-08-23"},{"SOURCE_ROW_NUMBER":"311103","EVENT_NO":"1124644","INSPECTION_BEGIN_DT":"08/09/2006","INSPECTION_END_DT":"08/16/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"23.75","SUM_TOTAL_ON_SITE_HOURS":"12.5","sourceDate":"2006-08-09"}]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":14,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2008":{"hours":720,"employees":1,"production":0},"2009":{"hours":720,"employees":2,"production":0},"2010":{"hours":630,"employees":2,"production":0},"2011":{"hours":20,"employees":1,"production":0},"2013":{"hours":240,"employees":2,"production":0},"2014":{"hours":160,"employees":2,"production":0},"2015":{"hours":460,"employees":2,"production":0},"2016":{"hours":550,"employees":2,"production":0},"2018":{"hours":460,"employees":2,"production":0},"2019":{"hours":80,"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":[]},{"id":"msha-personal-health-samples","name":"Metal and Nonmetal Personal Health Samples","domains":["health","safety"],"products":["personal exposure trend","occupation patterns","analyte coverage"],"rowCount":2,"firstDate":"2006-08-16","lastDate":"2006-08-16","metrics":{"recentRows":0,"actionTaken":2,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"54020","EVENT_NO":"1124644","SAMPLE_NO":"000000200606441000","SAMPLE_DATE":"08/16/2006","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2006-08-16"},{"SOURCE_ROW_NUMBER":"54019","EVENT_NO":"1124644","SAMPLE_NO":"000000200606440900","SAMPLE_DATE":"08/16/2006","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Bulldozer Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2006-08-16"}]}],"safety":{"href":"/api/v1/mines/5001775/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/5001775/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":"5001775","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}