{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc","status":"Abandoned","status_date":"2006-06-30","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MT","county":"Pondera","nearest_town":"Conrad","operator_id":"L06845","operator_name":"Conrad Sand & Gravel Redi-Mix Inc","controller_id":"M05457","controller_name":"Craig  Hanson; James  Rohrer","district":"M6","office":"Helena MT Field Office","employees":0,"latitude":48.2112,"longitude":-111.943087},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":89},"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":"2026-10-18T09:31:49.615908+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":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc"},"operator":{"type":"operator","id":"L06845","name":"Conrad Sand & Gravel Redi-Mix Inc"},"controller":{"type":"controller","id":"M05457","name":"Craig  Hanson; James  Rohrer"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06844","name":"Conrad Sand & Gravel"},"object":{"type":"mine","id":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1950-01-01","validTo":"1983-03-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|L06844|1950-01-01|1983-03-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05456","name":"Rohrer Arnold"},"object":{"type":"mine","id":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1950-01-01","validTo":"1983-03-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|M05456|1950-01-01|1983-03-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05456","name":"Rohrer Arnold"},"object":{"type":"operator","id":"L06844","name":"Conrad Sand & Gravel"},"validFrom":"1950-01-01","validTo":"1983-03-28","current":false,"derived":true,"evidenceMineId":"2401306","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|L06844|1950-01-01|M05456|1950-01-01|134713"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06845","name":"Conrad Sand & Gravel Redi-Mix Inc"},"object":{"type":"mine","id":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1983-03-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|L06845|1983-03-29|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05457","name":"James  Rohrer  et al"},"object":{"type":"mine","id":"2401306","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1983-03-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|M05457|1983-03-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05457","name":"James  Rohrer  et al"},"object":{"type":"operator","id":"L06845","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1983-03-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"2401306","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|L06845|1983-03-29|M05457|1983-03-29|134714"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05457","name":"Craig  Hanson  et al"},"object":{"type":"operator","id":"L06845","name":"Conrad Sand & Gravel Redi-Mix Inc"},"validFrom":"1983-03-29","validTo":null,"current":true,"derived":true,"evidenceMineId":"2401306","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2401306|L06845|1983-03-29|M05457|1983-03-29|134715"}}],"coverage":{"historyRecords":3,"edgeCount":7,"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":"2006-06-30","lastDate":"2006-06-30","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":5,"firstDate":"2002-08-27","lastDate":"2005-09-27","metrics":{"ss":1,"delinquent":4,"recentRows":0,"paidPenalty":452,"proposedPenalty":452,"currentAssessment":452},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"495491","VIOLATION_NO":"6322332","ISSUE_DT":"09/27/2005","CFR_STANDARD_CD":"56.14130(g)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"217.00","CURRENT_ASSESSMENT_AMT":"217.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-09-27"},{"SOURCE_ROW_NUMBER":"494252","VIOLATION_NO":"6270994","ISSUE_DT":"07/28/2004","CFR_STANDARD_CD":"56.12018","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-07-28"},{"SOURCE_ROW_NUMBER":"466610","VIOLATION_NO":"6270684","ISSUE_DT":"08/06/2003","CFR_STANDARD_CD":"56.12018","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2003-08-06"},{"SOURCE_ROW_NUMBER":"466609","VIOLATION_NO":"6270683","ISSUE_DT":"08/06/2003","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2003-08-06"},{"SOURCE_ROW_NUMBER":"12765","VIOLATION_NO":"6268940","ISSUE_DT":"08/27/2002","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-08-27"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":1,"firstDate":"2006-09-20","lastDate":"2006-09-20","metrics":{"linkedIssuances":1},"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":3,"firstDate":"1950-01-01","lastDate":"1983-03-29","metrics":{"recentRows":0,"currentOperatorTenures":2,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":6,"firstDate":"2002-08-27","lastDate":"2006-07-27","metrics":{"inspectors":7,"recentRows":0,"onSiteHours":16,"inspectionHours":46.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1062575","EVENT_NO":"1089993","INSPECTION_BEGIN_DT":"07/27/2006","INSPECTION_END_DT":"07/27/2006","ACTIVITY_CODE":"E24","ACTIVITY":"Other Technical Compliance Investigations","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2006-07-27"},{"SOURCE_ROW_NUMBER":"341299","EVENT_NO":"1089202","INSPECTION_BEGIN_DT":"09/27/2005","INSPECTION_END_DT":"09/27/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7.5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2005-09-27"},{"SOURCE_ROW_NUMBER":"996412","EVENT_NO":"1088881","INSPECTION_BEGIN_DT":"03/08/2005","INSPECTION_END_DT":"03/08/2005","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2005-03-08"},{"SOURCE_ROW_NUMBER":"950620","EVENT_NO":"1088578","INSPECTION_BEGIN_DT":"07/28/2004","INSPECTION_END_DT":"07/29/2004","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2004-07-28"},{"SOURCE_ROW_NUMBER":"272593","EVENT_NO":"1068961","INSPECTION_BEGIN_DT":"08/06/2003","INSPECTION_END_DT":"08/07/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2003-08-06"},{"SOURCE_ROW_NUMBER":"653071","EVENT_NO":"0465244","INSPECTION_BEGIN_DT":"08/27/2002","INSPECTION_END_DT":"08/27/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2002-08-27"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":53,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2006-Q3":{"hours":17,"employees":3,"production":0},"2006-Q2":{"hours":445,"employees":3,"production":0},"2006-Q1":{"hours":1,"employees":1,"production":0},"2005-Q4":{"hours":393,"employees":3,"production":0},"2005-Q3":{"hours":845,"employees":3,"production":0},"2005-Q2":{"hours":513,"employees":3,"production":0},"2005-Q1":{"hours":1,"employees":1,"production":0},"2004-Q4":{"hours":378,"employees":3,"production":0},"2004-Q3":{"hours":997,"employees":3,"production":0},"2004-Q2":{"hours":719,"employees":3,"production":0},"2004-Q1":{"hours":1,"employees":1,"production":0},"2003-Q4":{"hours":141,"employees":3,"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":14,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":339,"employees":3,"production":0},"2001":{"hours":1581,"employees":3,"production":0},"2002":{"hours":927,"employees":3,"production":0},"2003":{"hours":1381,"employees":3,"production":0},"2004":{"hours":2095,"employees":3,"production":0},"2005":{"hours":1752,"employees":3,"production":0},"2006":{"hours":463,"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":5,"firstDate":"2002-08-27","lastDate":"2005-09-27","metrics":{"ss":1,"amountDue":452,"contested":0,"amountPaid":452,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":452},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1460416","VIOLATION_NO":"6322332","VIOLATION_ISSUE_DT":"09/27/2005","SIG_SUB":"Y","PART_SECTION":"56.14130(g)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/28/2005","PROPOSED_PENALTY":"217","AMOUNT_DUE":"217","AMOUNT_PAID":"217","CONTESTED_IND":"N","sourceDate":"2005-09-27"},{"SOURCE_ROW_NUMBER":"1460412","VIOLATION_NO":"6270994","VIOLATION_ISSUE_DT":"07/28/2004","SIG_SUB":"N","PART_SECTION":"56.12018","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/08/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2004-07-28"},{"SOURCE_ROW_NUMBER":"1460414","VIOLATION_NO":"6270684","VIOLATION_ISSUE_DT":"08/06/2003","SIG_SUB":"N","PART_SECTION":"56.12018","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/07/2003","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2003-08-06"},{"SOURCE_ROW_NUMBER":"1460413","VIOLATION_NO":"6270683","VIOLATION_ISSUE_DT":"08/06/2003","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/07/2003","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2003-08-06"},{"SOURCE_ROW_NUMBER":"1460415","VIOLATION_NO":"6268940","VIOLATION_ISSUE_DT":"08/27/2002","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/21/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-08-27"}]}],"safety":{"href":"/api/v1/mines/2401306/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2401306/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":"Roll-over protective structures (ROPS) and seat belts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130","part":"56","subchapter":"K","subpart":"M","id":"56.14130","citation":"30 CFR 56.14130","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Identification of power switches.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018","part":"56","subchapter":"K","subpart":"K","id":"56.12018","citation":"30 CFR 56.12018","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":2},{"chapter":"I","heading":"Moving machine parts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107","part":"56","subchapter":"K","subpart":"M","id":"56.14107","citation":"30 CFR 56.14107","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Testing grounding systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028","part":"56","subchapter":"K","subpart":"K","id":"56.12028","citation":"30 CFR 56.12028","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"2401306","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}