{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0503926","name":"SUMMIT CLAY PITS","status":"Abandoned","status_date":"2001-09-14","mine_type":"Surface","coal_metal":"M","commodity":"Common Clays NEC","state":"CO","county":"Pueblo","nearest_town":"","operator_id":"L01154","operator_name":"Summit Pressed Brick & Tile Company","controller_id":"M01005","controller_name":"Joseph C  Welte","district":"M6","office":"Denver CO Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":6,"registeredSources":20,"sourceRows":21},"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":"0503926","name":"SUMMIT CLAY PITS"},"operator":{"type":"operator","id":"L01154","name":"Summit Pressed Brick & Tile Company"},"controller":{"type":"controller","id":"M01005","name":"Joseph C  Welte"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01005","name":"Joseph C  Welte et al"},"object":{"type":"mine","id":"0503926","name":"SUMMIT CLAY PITS"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503926|M01005|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01154","name":"Summit Pressed Brick & Tile Company"},"object":{"type":"mine","id":"0503926","name":"SUMMIT CLAY PITS"},"validFrom":"1984-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503926|L01154|1984-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01005","name":"Joseph C  Welte et al"},"object":{"type":"operator","id":"L01154","name":"Summit Pressed Brick & Tile Company"},"validFrom":"1984-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0503926","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503926|L01154|1984-01-01|M01005|1950-01-01|116400"}}],"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":"2001-09-14","lastDate":"2001-09-14","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":"1984-01-01","lastDate":"1984-01-01","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":4,"firstDate":"2000-01-03","lastDate":"2001-09-18","metrics":{"inspectors":4,"recentRows":0,"onSiteHours":7,"inspectionHours":22,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"819342","EVENT_NO":"0530893","INSPECTION_BEGIN_DT":"09/18/2001","INSPECTION_END_DT":"09/18/2001","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2001-09-18"},{"SOURCE_ROW_NUMBER":"926171","EVENT_NO":"0420188","INSPECTION_BEGIN_DT":"03/08/2000","INSPECTION_END_DT":"03/08/2000","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2000-03-08"},{"SOURCE_ROW_NUMBER":"709374","EVENT_NO":"0420180","INSPECTION_BEGIN_DT":"01/12/2000","INSPECTION_END_DT":"01/12/2000","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2000-01-12"},{"SOURCE_ROW_NUMBER":"868305","EVENT_NO":"0420166","INSPECTION_BEGIN_DT":"01/03/2000","INSPECTION_END_DT":"01/03/2000","ACTIVITY_CODE":"09","ACTIVITY":"VERBAL HAZARD COMPLAINT","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2000-01-03"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":11,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2001-Q3":{"hours":0,"employees":0,"production":0},"2001-Q2":{"hours":0,"employees":0,"production":0},"2001-Q1":{"hours":10,"employees":1,"production":0},"2000-Q4":{"hours":0,"employees":0,"production":0},"2000-Q3":{"hours":19,"employees":3,"production":0},"2000-Q2":{"hours":44,"employees":4,"production":0},"2000-Q1":{"hours":11,"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":{"2000":{"hours":74,"employees":3,"production":0},"2001":{"hours":10,"employees":1,"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/0503926/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0503926/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":"0503926","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}