{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"4202515","name":"Montezuma Creek Mine","status":"Abandoned","status_date":"2010-01-04","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"UT","county":"San Juan","nearest_town":"Montazuma Creek","operator_id":"0095545","operator_name":"Summit Crushing LLC","controller_id":"0080473","controller_name":"Samuel W  Jessop","district":"C09","office":"Lakewood District","employees":0,"latitude":37.27,"longitude":-109.320555},"coverage":{"contributingSources":5,"registeredSources":20,"sourceRows":6},"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":"4202515","name":"Montezuma Creek Mine"},"operator":{"type":"operator","id":"0095545","name":"Summit Crushing LLC"},"controller":{"type":"controller","id":"0080473","name":"Samuel W  Jessop"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0095545","name":"Summit Crushing LLC"},"object":{"type":"mine","id":"4202515","name":"Montezuma Creek Mine"},"validFrom":"2008-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4202515|0095545|2008-09-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0080473","name":"Samuel W  Jessop"},"object":{"type":"mine","id":"4202515","name":"Montezuma Creek Mine"},"validFrom":"2008-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4202515|0080473|2008-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0080473","name":"Samuel W  Jessop"},"object":{"type":"operator","id":"0095545","name":"Summit Crushing LLC"},"validFrom":"2008-09-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4202515","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4202515|0095545|2008-09-01|0080473|2008-09-01|12680"}}],"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":"2010-01-04","lastDate":"2010-01-04","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":"2008-09-01","lastDate":"2008-09-01","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":2,"firstDate":"2008-09-11","lastDate":"2009-08-04","metrics":{"inspectors":2,"recentRows":0,"onSiteHours":2,"inspectionHours":15.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1101675","EVENT_NO":"1111301","INSPECTION_BEGIN_DT":"08/04/2009","INSPECTION_END_DT":"08/05/2009","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2009-08-04"},{"SOURCE_ROW_NUMBER":"14649","EVENT_NO":"1097631","INSPECTION_BEGIN_DT":"09/11/2008","INSPECTION_END_DT":"09/12/2008","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2008-09-11"}]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2008":{"hours":806,"employees":3,"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/4202515/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4202515/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":"4202515","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}