{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2003691","name":"Powerscreen #2","status":"Intermittent","status_date":"2025-07-29","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MI","county":"Barry","nearest_town":"Middleville","operator_id":"0203754","operator_name":"C2 Excavating, LLC","controller_id":"0192503","controller_name":"Robert  Clawson","district":"M4","office":"Lansing MI Field Office","employees":2,"latitude":42.407222,"longitude":-85.411667},"coverage":{"contributingSources":7,"registeredSources":20,"sourceRows":14},"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":"2003691","name":"Powerscreen #2"},"operator":{"type":"operator","id":"0203754","name":"C2 Excavating, LLC"},"controller":{"type":"controller","id":"0192503","name":"Robert  Clawson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0192503","name":"Robert  Clawson"},"object":{"type":"mine","id":"2003691","name":"Powerscreen #2"},"validFrom":"2025-06-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003691|0192503|2025-06-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0203754","name":"C2 Excavating, LLC"},"object":{"type":"mine","id":"2003691","name":"Powerscreen #2"},"validFrom":"2025-06-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003691|0203754|2025-06-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0192503","name":"Robert  Clawson"},"object":{"type":"operator","id":"0203754","name":"C2 Excavating, LLC"},"validFrom":"2025-06-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003691","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003691|0203754|2025-06-26|0192503|2025-06-24|40975"}}],"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":"2025-07-29","lastDate":"2025-07-29","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":"2025-06-26","lastDate":"2025-06-26","metrics":{"recentRows":1,"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":2,"firstDate":"2026-08-12","lastDate":"2026-10-07","metrics":{"inspectors":1,"recentRows":2,"onSiteHours":8,"inspectionHours":11.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"74560","EVENT_NO":"F04AD02","INSPECTION_BEGIN_DT":"10/07/2026","INSPECTION_END_DT":"10/07/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"0","SUM_TOTAL_INSP_HOURS":"0","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2026-10-07"},{"SOURCE_ROW_NUMBER":"522389","EVENT_NO":"F031C75","INSPECTION_BEGIN_DT":"08/12/2026","INSPECTION_END_DT":"08/13/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2026-08-12"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":0,"employees":0,"production":0},"2026-Q1":{"hours":0,"employees":0,"production":0},"2025-Q4":{"hours":297,"employees":3,"production":0},"2025-Q3":{"hours":498,"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":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2025":{"hours":795,"employees":3,"production":0},"2026":{"hours":0,"employees":0,"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":3,"firstDate":"2026-08-13","lastDate":"2026-08-13","metrics":{"recentRows":3,"actionTaken":3,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"315262","EVENT_NO":"F031C75","SAMPLE_NO":"000000202603306500","SAMPLE_DATE":"08/13/2026","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.37","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Bobcat Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-08-13"},{"SOURCE_ROW_NUMBER":"315119","EVENT_NO":"F031C75","SAMPLE_NO":"000000202603306600","SAMPLE_DATE":"08/13/2026","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Scraper Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-08-13"},{"SOURCE_ROW_NUMBER":"314898","EVENT_NO":"F031C75","SAMPLE_NO":"000000202603306400","SAMPLE_DATE":"08/13/2026","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Utility Man","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-08-13"}]}],"safety":{"href":"/api/v1/mines/2003691/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2003691/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":"2003691","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}