{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"2401836","name":"Roe Sand & Gravel","status":"Intermittent","status_date":"2019-10-29","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MT","county":"Sweet Grass","nearest_town":"Big Timber","operator_id":"L39177","operator_name":"Tom Roe & Son Construction Inc","controller_id":"M39177","controller_name":"Tom  Roe","district":"M6","office":"Helena MT Field Office","employees":1,"latitude":46.879722,"longitude":-110.3625},"coverage":{"contributingSources":7,"registeredSources":20,"sourceRows":24},"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":"2401836","name":"Roe Sand & Gravel"},"operator":{"type":"operator","id":"L39177","name":"Tom Roe & Son Construction Inc"},"controller":{"type":"controller","id":"M39177","name":"Tom  Roe"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L39177","name":"Tom Roe & Son Construction Inc"},"object":{"type":"mine","id":"2401836","name":"Roe Sand & Gravel"},"validFrom":"1990-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401836|L39177|1990-02-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M39177","name":"Tom  Roe et al"},"object":{"type":"mine","id":"2401836","name":"Roe Sand & Gravel"},"validFrom":"1990-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401836|M39177|1990-02-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M39177","name":"Tom  Roe et al"},"object":{"type":"operator","id":"L39177","name":"Tom Roe & Son Construction Inc"},"validFrom":"1990-02-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2401836","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401836|L39177|1990-02-01|M39177|1990-02-01|168715"}}],"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":"2019-10-29","lastDate":"2019-10-29","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":1,"firstDate":"2021-09-10","lastDate":"2021-09-10","metrics":{"ss":0,"delinquent":1,"recentRows":1,"paidPenalty":125,"proposedPenalty":125,"currentAssessment":125},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2623083","VIOLATION_NO":"9652931","ISSUE_DT":"09/10/2021","CFR_STANDARD_CD":"50.30(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"125.00","CURRENT_ASSESSMENT_AMT":"125.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2021-09-10"}]},{"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":"1990-02-01","lastDate":"1990-02-01","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":8,"firstDate":"2020-07-29","lastDate":"2026-03-04","metrics":{"inspectors":8,"recentRows":7,"onSiteHours":22.5,"inspectionHours":77.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"437523","EVENT_NO":"F038C20","INSPECTION_BEGIN_DT":"03/04/2026","INSPECTION_END_DT":"03/05/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"144525","EVENT_NO":"F029879","INSPECTION_BEGIN_DT":"06/15/2025","INSPECTION_END_DT":"06/16/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2025-06-15"},{"SOURCE_ROW_NUMBER":"891391","EVENT_NO":"6851995","INSPECTION_BEGIN_DT":"08/26/2024","INSPECTION_END_DT":"08/26/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.25","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2024-08-26"},{"SOURCE_ROW_NUMBER":"873697","EVENT_NO":"6946664","INSPECTION_BEGIN_DT":"05/22/2024","INSPECTION_END_DT":"05/22/2024","ACTIVITY_CODE":"E17","ACTIVITY":"Special Emphasis Programs","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1.25","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2024-05-22"},{"SOURCE_ROW_NUMBER":"580917","EVENT_NO":"6851903","INSPECTION_BEGIN_DT":"06/26/2023","INSPECTION_END_DT":"06/28/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.75","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2023-06-26"},{"SOURCE_ROW_NUMBER":"17542","EVENT_NO":"6851724","INSPECTION_BEGIN_DT":"04/07/2022","INSPECTION_END_DT":"04/07/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2022-04-07"},{"SOURCE_ROW_NUMBER":"940773","EVENT_NO":"6855216","INSPECTION_BEGIN_DT":"09/10/2021","INSPECTION_END_DT":"09/10/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2021-09-10"},{"SOURCE_ROW_NUMBER":"324558","EVENT_NO":"6855610","INSPECTION_BEGIN_DT":"07/29/2020","INSPECTION_END_DT":"07/31/2020","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2020-07-29"}]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":11,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":744,"employees":1,"production":0},"2018":{"hours":674,"employees":1,"production":0},"2019":{"hours":748,"employees":1,"production":0},"2020":{"hours":946,"employees":2,"production":0},"2021":{"hours":1324,"employees":3,"production":0},"2022":{"hours":1068,"employees":2,"production":0},"2023":{"hours":939,"employees":2,"production":0},"2024":{"hours":1295,"employees":2,"production":0},"2025":{"hours":1500,"employees":2,"production":0},"2026":{"hours":921,"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":[]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":1,"firstDate":"2021-09-10","lastDate":"2021-09-10","metrics":{"ss":0,"amountDue":125,"contested":0,"amountPaid":125,"recentRows":1,"section104d":0,"unterminated":0,"proposedPenalty":125},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1470729","VIOLATION_NO":"9652931","VIOLATION_ISSUE_DT":"09/10/2021","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/10/2021","PROPOSED_PENALTY":"125","AMOUNT_DUE":"125","AMOUNT_PAID":"125","CONTESTED_IND":"N","sourceDate":"2021-09-10"}]}],"safety":{"href":"/api/v1/mines/2401836/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2401836/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":[{"chapter":"I","heading":"Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30","part":"50","subchapter":"I","subpart":"D","id":"50.30","citation":"30 CFR 50.30","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER I—ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND PRODUCTION IN MINES","partHeading":"PART 50—NOTIFICATION, INVESTIGATION, REPORTS AND RECORDS OF ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"2401836","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}