{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4801883","name":"Screen #4","status":"Temporarily Idled","status_date":"2026-08-03","mine_type":"Surface","coal_metal":"M","commodity":"Bentonite","state":"WY","county":"Johnson","nearest_town":"Kaycee","operator_id":"0187713","operator_name":"Brutill Construction, Inc.","controller_id":"0175321","controller_name":"Katherine  Till; Bru  Till","district":"C09","office":"Gillette WY Field Office","employees":2,"latitude":43.148889,"longitude":-106.134167},"coverage":{"contributingSources":7,"registeredSources":20,"sourceRows":25},"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":"4801883","name":"Screen #4"},"operator":{"type":"operator","id":"0187713","name":"Brutill Construction, Inc."},"controller":{"type":"controller","id":"0175321","name":"Katherine  Till; Bru  Till"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0175321","name":"Katherine  Till et al"},"object":{"type":"mine","id":"4801883","name":"Screen #4"},"validFrom":"2023-03-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801883|0175321|2023-03-17|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0187713","name":"Brutill Construction, Inc."},"object":{"type":"mine","id":"4801883","name":"Screen #4"},"validFrom":"2024-07-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801883|0187713|2024-07-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175321","name":"Katherine  Till et al"},"object":{"type":"operator","id":"0187713","name":"Brutill Construction, Inc."},"validFrom":"2024-07-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801883","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801883|0187713|2024-07-08|0175321|2023-03-17|37398"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175321","name":"Bru  Till et al"},"object":{"type":"operator","id":"0187713","name":"Brutill Construction, Inc."},"validFrom":"2024-07-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801883","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801883|0187713|2024-07-08|0175321|2023-03-17|37399"}}],"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":"2026-08-03","lastDate":"2026-08-03","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":"2024-07-08","lastDate":"2024-07-08","metrics":{"recentRows":2,"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":"2024-07-25","lastDate":"2026-01-14","metrics":{"inspectors":4,"recentRows":4,"onSiteHours":25.25,"inspectionHours":82.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"922253","EVENT_NO":"F00F36B","INSPECTION_BEGIN_DT":"01/14/2026","INSPECTION_END_DT":"04/06/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"47.75","SUM_TOTAL_ON_SITE_HOURS":"9.75","sourceDate":"2026-01-14"},{"SOURCE_ROW_NUMBER":"309110","EVENT_NO":"6472607","INSPECTION_BEGIN_DT":"04/15/2025","INSPECTION_END_DT":"04/16/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7.25","SUM_TOTAL_ON_SITE_HOURS":"1.75","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"176898","EVENT_NO":"6469029","INSPECTION_BEGIN_DT":"10/03/2024","INSPECTION_END_DT":"10/21/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19","SUM_TOTAL_ON_SITE_HOURS":"10.75","sourceDate":"2024-10-03"},{"SOURCE_ROW_NUMBER":"1122488","EVENT_NO":"6472538","INSPECTION_BEGIN_DT":"07/25/2024","INSPECTION_END_DT":"07/26/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.5","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2024-07-25"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":8,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":226,"employees":2,"production":0},"2026-Q1":{"hours":822,"employees":2,"production":0},"2025-Q4":{"hours":594,"employees":2,"production":0},"2025-Q3":{"hours":0,"employees":0,"production":0},"2025-Q2":{"hours":529,"employees":3,"production":0},"2025-Q1":{"hours":578,"employees":3,"production":0},"2024-Q4":{"hours":1469,"employees":3,"production":0},"2024-Q3":{"hours":1117,"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":{"2024":{"hours":2586,"employees":3,"production":0},"2025":{"hours":1701,"employees":3,"production":0},"2026":{"hours":1048,"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":6,"firstDate":"2024-10-04","lastDate":"2026-04-02","metrics":{"recentRows":6,"actionTaken":6,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"306012","EVENT_NO":"F00F36B","SAMPLE_NO":"000000202601368200","SAMPLE_DATE":"04/02/2026","CONTAMINANT_DESC":"Unlisted  Particulate, total, <1% Qtz","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":"2026-04-02"},{"SOURCE_ROW_NUMBER":"306011","EVENT_NO":"F00F36B","SAMPLE_NO":"000000202601368100","SAMPLE_DATE":"04/02/2026","CONTAMINANT_DESC":"Unlisted  Particulate, total, <1% Qtz","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Rotary Bucket Ex. Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-02"},{"SOURCE_ROW_NUMBER":"306010","EVENT_NO":"F00F36B","SAMPLE_NO":"000000202601368000","SAMPLE_DATE":"04/02/2026","CONTAMINANT_DESC":"Unlisted  Particulate, total, <1% Qtz","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Bulldozer Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-02"},{"SOURCE_ROW_NUMBER":"290941","EVENT_NO":"6469029","SAMPLE_NO":"000000202404196100","SAMPLE_DATE":"10/04/2024","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Backhoe Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-10-04"},{"SOURCE_ROW_NUMBER":"290940","EVENT_NO":"6469029","SAMPLE_NO":"000000202404196000","SAMPLE_DATE":"10/04/2024","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":"2024-10-04"},{"SOURCE_ROW_NUMBER":"290939","EVENT_NO":"6469029","SAMPLE_NO":"000000202404195900","SAMPLE_DATE":"10/04/2024","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":"2024-10-04"}]}],"safety":{"href":"/api/v1/mines/4801883/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4801883/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":"4801883","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}