{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2402468","name":"Twin Creeks","status":"Abandoned","status_date":"2019-01-16","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MT","county":"Flathead","nearest_town":"Marion","operator_id":"0082706","operator_name":"Twin Creek Quarries LLC","controller_id":"0069753","controller_name":"Brian J  Caballero","district":"M6","office":"Helena MT Field Office","employees":0,"latitude":48.061667,"longitude":-114.821111},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":49},"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":"2402468","name":"Twin Creeks"},"operator":{"type":"operator","id":"0082706","name":"Twin Creek Quarries LLC"},"controller":{"type":"controller","id":"0069753","name":"Brian J  Caballero"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0082706","name":"Twin Creek Quarries LLC"},"object":{"type":"mine","id":"2402468","name":"Twin Creeks"},"validFrom":"2007-04-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402468|0082706|2007-04-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0069753","name":"Brian J  Caballero"},"object":{"type":"mine","id":"2402468","name":"Twin Creeks"},"validFrom":"2007-04-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402468|0069753|2007-04-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0069753","name":"Brian J  Caballero"},"object":{"type":"operator","id":"0082706","name":"Twin Creek Quarries LLC"},"validFrom":"2007-04-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"2402468","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402468|0082706|2007-04-03|0069753|2007-04-03|9951"}}],"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":"2019-01-16","lastDate":"2019-01-16","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":9,"firstDate":"2007-09-26","lastDate":"2011-03-17","metrics":{"ss":1,"delinquent":9,"recentRows":0,"paidPenalty":100,"proposedPenalty":1043,"currentAssessment":1043},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"527856","VIOLATION_NO":"6450505","ISSUE_DT":"03/17/2011","CFR_STANDARD_CD":"50.30(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-03-17"},{"SOURCE_ROW_NUMBER":"527354","VIOLATION_NO":"6592043","ISSUE_DT":"01/04/2011","CFR_STANDARD_CD":"41.12","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-01-04"},{"SOURCE_ROW_NUMBER":"528410","VIOLATION_NO":"6458239","ISSUE_DT":"12/02/2010","CFR_STANDARD_CD":"56.1000","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-12-02"},{"SOURCE_ROW_NUMBER":"527449","VIOLATION_NO":"6451321","ISSUE_DT":"12/11/2009","CFR_STANDARD_CD":"50.30(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-12-11"},{"SOURCE_ROW_NUMBER":"542305","VIOLATION_NO":"6446824","ISSUE_DT":"08/12/2009","CFR_STANDARD_CD":"56.14132(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"243.00","CURRENT_ASSESSMENT_AMT":"243.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"542304","VIOLATION_NO":"6446823","ISSUE_DT":"08/12/2009","CFR_STANDARD_CD":"56.14103(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"524761","VIOLATION_NO":"6417973","ISSUE_DT":"07/22/2008","CFR_STANDARD_CD":"56.20008(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-07-22"},{"SOURCE_ROW_NUMBER":"524760","VIOLATION_NO":"6417972","ISSUE_DT":"07/22/2008","CFR_STANDARD_CD":"56.14132(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-07-22"},{"SOURCE_ROW_NUMBER":"510171","VIOLATION_NO":"6325062","ISSUE_DT":"09/26/2007","CFR_STANDARD_CD":"46.9(b)(5)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2007-09-26"}]},{"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":"2007-04-03","lastDate":"2007-04-03","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":11,"firstDate":"2007-09-25","lastDate":"2011-08-03","metrics":{"inspectors":14,"recentRows":0,"onSiteHours":27.75,"inspectionHours":110,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"841037","EVENT_NO":"6557206","INSPECTION_BEGIN_DT":"08/03/2011","INSPECTION_END_DT":"08/04/2011","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.5","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2011-08-03"},{"SOURCE_ROW_NUMBER":"682363","EVENT_NO":"1106891","INSPECTION_BEGIN_DT":"03/17/2011","INSPECTION_END_DT":"03/17/2011","ACTIVITY_CODE":"E24","ACTIVITY":"Other Technical Compliance Investigations","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":".75","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2011-03-17"},{"SOURCE_ROW_NUMBER":"628622","EVENT_NO":"1106626","INSPECTION_BEGIN_DT":"12/06/2010","INSPECTION_END_DT":"01/04/2011","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"33.25","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2010-12-06"},{"SOURCE_ROW_NUMBER":"701455","EVENT_NO":"1107082","INSPECTION_BEGIN_DT":"12/02/2010","INSPECTION_END_DT":"12/02/2010","ACTIVITY_CODE":"E24","ACTIVITY":"Other Technical Compliance Investigations","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2010-12-02"},{"SOURCE_ROW_NUMBER":"953568","EVENT_NO":"1106348","INSPECTION_BEGIN_DT":"04/08/2010","INSPECTION_END_DT":"04/08/2010","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"3.5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2010-04-08"},{"SOURCE_ROW_NUMBER":"697395","EVENT_NO":"1106684","INSPECTION_BEGIN_DT":"12/11/2009","INSPECTION_END_DT":"12/11/2009","ACTIVITY_CODE":"E24","ACTIVITY":"Other Technical Compliance Investigations","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"1.5","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2009-12-11"},{"SOURCE_ROW_NUMBER":"878437","EVENT_NO":"1112999","INSPECTION_BEGIN_DT":"08/12/2009","INSPECTION_END_DT":"08/19/2009","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"31","SUM_TOTAL_ON_SITE_HOURS":"13.5","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"823278","EVENT_NO":"1105891","INSPECTION_BEGIN_DT":"08/15/2008","INSPECTION_END_DT":"08/15/2008","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2008-08-15"},{"SOURCE_ROW_NUMBER":"834396","EVENT_NO":"1105885","INSPECTION_BEGIN_DT":"07/29/2008","INSPECTION_END_DT":"07/29/2008","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.25","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2008-07-29"},{"SOURCE_ROW_NUMBER":"23914","EVENT_NO":"1105807","INSPECTION_BEGIN_DT":"07/22/2008","INSPECTION_END_DT":"07/22/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16.25","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2008-07-22"},{"SOURCE_ROW_NUMBER":"128582","EVENT_NO":"1097372","INSPECTION_BEGIN_DT":"09/25/2007","INSPECTION_END_DT":"09/26/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2007-09-25"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":9,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2009-Q3":{"hours":4400,"employees":10,"production":0},"2009-Q1":{"hours":0,"employees":0,"production":0},"2008-Q4":{"hours":2373,"employees":6,"production":0},"2008-Q3":{"hours":1943,"employees":7,"production":0},"2008-Q2":{"hours":159,"employees":5,"production":0},"2008-Q1":{"hours":0,"employees":0,"production":0},"2007-Q3":{"hours":2832,"employees":5,"production":0},"2007-Q2":{"hours":1317,"employees":5,"production":0},"2006-Q4":{"hours":1520,"employees":4,"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":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2006":{"hours":1520,"employees":4,"production":0},"2007":{"hours":4149,"employees":5,"production":0},"2008":{"hours":4475,"employees":6,"production":0},"2009":{"hours":4400,"employees":10,"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":4,"firstDate":"2009-08-13","lastDate":"2009-08-13","metrics":{"recentRows":0,"actionTaken":4,"maxExposureRatio":0.12,"overExposureLimit":0,"exposureRatioTotal":0.12},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"103923","EVENT_NO":"1112999","SAMPLE_NO":"000000200907980200","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Hand Loader","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"103922","EVENT_NO":"1112999","SAMPLE_NO":"000000200907980100","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Hand Loader","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"103921","EVENT_NO":"1112999","SAMPLE_NO":"000000200907980000","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Hand Loader","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"103920","EVENT_NO":"1112999","SAMPLE_NO":"000000200907979900","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.18","EXPOSURE_LIMIT":"0001.53","C_OVER_E":"00.12","JOB_CD_DESC":"Forklift Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":9,"firstDate":"2007-09-26","lastDate":"2011-03-17","metrics":{"ss":1,"amountDue":1043,"contested":0,"amountPaid":100,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":1043},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1485434","VIOLATION_NO":"6450505","VIOLATION_ISSUE_DT":"03/17/2011","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/22/2011","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2011-03-17"},{"SOURCE_ROW_NUMBER":"1485441","VIOLATION_NO":"6592043","VIOLATION_ISSUE_DT":"01/04/2011","SIG_SUB":"N","PART_SECTION":"41.12","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/22/2011","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2011-01-04"},{"SOURCE_ROW_NUMBER":"1485440","VIOLATION_NO":"6458239","VIOLATION_ISSUE_DT":"12/02/2010","SIG_SUB":"N","PART_SECTION":"56.1000","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/02/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-12-02"},{"SOURCE_ROW_NUMBER":"1485442","VIOLATION_NO":"6451321","VIOLATION_ISSUE_DT":"12/11/2009","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"01/12/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-12-11"},{"SOURCE_ROW_NUMBER":"1485438","VIOLATION_NO":"6446824","VIOLATION_ISSUE_DT":"08/12/2009","SIG_SUB":"Y","PART_SECTION":"56.14132(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/19/2009","PROPOSED_PENALTY":"243","AMOUNT_DUE":"243","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"1485437","VIOLATION_NO":"6446823","VIOLATION_ISSUE_DT":"08/12/2009","SIG_SUB":"N","PART_SECTION":"56.14103(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/19/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"1485436","VIOLATION_NO":"6417973","VIOLATION_ISSUE_DT":"07/22/2008","SIG_SUB":"N","PART_SECTION":"56.20008(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/15/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2008-07-22"},{"SOURCE_ROW_NUMBER":"1485435","VIOLATION_NO":"6417972","VIOLATION_ISSUE_DT":"07/22/2008","SIG_SUB":"N","PART_SECTION":"56.14132(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/29/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2008-07-22"},{"SOURCE_ROW_NUMBER":"1485439","VIOLATION_NO":"6325062","VIOLATION_ISSUE_DT":"09/26/2007","SIG_SUB":"N","PART_SECTION":"46.9(b)(5)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/13/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2007-09-26"}]}],"safety":{"href":"/api/v1/mines/2402468/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2402468/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":2},{"chapter":"I","heading":"Changes; notification by operator.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12","part":"41","subchapter":"G","subpart":"B","id":"41.12","citation":"30 CFR 41.12","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER G—FILING AND OTHER ADMINISTRATIVE REQUIREMENTS","partHeading":"PART 41—NOTIFICATION OF LEGAL IDENTITY","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Notification of commencement of operations and closing of mines.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000","part":"56","subchapter":"K","subpart":"A","id":"56.1000","citation":"30 CFR 56.1000","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":"Horns and backup alarms.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132","part":"56","subchapter":"K","subpart":"M","id":"56.14132","citation":"30 CFR 56.14132","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":"Operators stations.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103","part":"56","subchapter":"K","subpart":"M","id":"56.14103","citation":"30 CFR 56.14103","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":"Toilet facilities.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20008","part":"56","subchapter":"K","subpart":"S","id":"56.20008","citation":"30 CFR 56.20008","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":"Records of training.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9","part":"46","subchapter":"H","subpart":"","id":"46.9","citation":"30 CFR 46.9","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER H—EDUCATION AND TRAINING","partHeading":"PART 46—TRAINING AND RETRAINING OF MINERS ENGAGED IN SHELL DREDGING OR EMPLOYED AT SAND, GRAVEL, SURFACE STONE, SURFACE CLAY, COLLOIDAL PHOSPHATE, OR SURFACE LIMESTONE MINES.","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"2402468","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}