{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2302487","name":"AA Quarry LLC","status":"Active","status_date":"2015-03-09","mine_type":"Underground","coal_metal":"M","commodity":"Crushed, Broken Limestone NEC","state":"MO","county":"Johnson","nearest_town":"Kingsville","operator_id":"0137073","operator_name":"AA Quarry LLC","controller_id":"0116583","controller_name":"Thomas  Radmacher; Robert  Radmacher","district":"C10","office":"Rolla MO Field Office","employees":22,"latitude":38.823889,"longitude":-94.093333},"coverage":{"contributingSources":16,"registeredSources":20,"sourceRows":1283},"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":"2302487","name":"AA Quarry LLC"},"operator":{"type":"operator","id":"0137073","name":"AA Quarry LLC"},"controller":{"type":"controller","id":"0116583","name":"Thomas  Radmacher; Robert  Radmacher"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0137073","name":"AA Quarry LLC"},"object":{"type":"mine","id":"2302487","name":"AA Quarry LLC"},"validFrom":"2014-11-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302487|0137073|2014-11-21|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0116583","name":"Thomas  Radmacher et al"},"object":{"type":"mine","id":"2302487","name":"AA Quarry LLC"},"validFrom":"2014-11-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302487|0116583|2014-11-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0116583","name":"Thomas  Radmacher et al"},"object":{"type":"operator","id":"0137073","name":"AA Quarry LLC"},"validFrom":"2014-11-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"2302487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302487|0137073|2014-11-21|0116583|2014-11-21|22064"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0116583","name":"Robert  Radmacher et al"},"object":{"type":"operator","id":"0137073","name":"AA Quarry LLC"},"validFrom":"2014-11-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"2302487","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2302487|0137073|2014-11-21|0116583|2014-11-21|22065"}}],"coverage":{"historyRecords":2,"edgeCount":4,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":2,"firstDate":"2023-03-31","lastDate":"2023-03-31","metrics":{"daysLost":13,"injuries":4,"fatalities":0,"recentRows":2,"restrictedDays":10,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"173951","DOCUMENT_NO":"220230960018","ACCIDENT_DT":"03/31/2023","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Miner, NEC","NO_INJURIES":"2","DAYS_LOST":"10","NARRATIVE":"Two men were in man lift, building a bulk head, when a piece of sand stone that they previously tried to scale was knocked down. It struck both men, resulting in one having a fractured wrist and the other having bruised ribs.","sourceDate":"2023-03-31"},{"SOURCE_ROW_NUMBER":"87973","DOCUMENT_NO":"220230960022","ACCIDENT_DT":"03/31/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Miner, NEC","NO_INJURIES":"2","DAYS_LOST":"3","NARRATIVE":"Two men were in man lift, building a bulk head, when a piece of sand stone that they previously tried to scale was knocked down. It struck both men, resulting in one having a fractured wrist and the other having bruised ribs.","sourceDate":"2023-03-31"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2015-03-09","lastDate":"2015-03-09","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-area-samples","name":"Metal and Nonmetal Area Samples","domains":["health","safety"],"products":["area contaminant trends","result-to-standard context","sampling recency"],"rowCount":24,"firstDate":"2021-06-08","lastDate":"2026-07-15","metrics":{"recentRows":24,"actionTaken":24,"concentrationTotal":421.25},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":242,"firstDate":"2015-08-25","lastDate":"2026-07-16","metrics":{"ss":39,"delinquent":215,"recentRows":167,"paidPenalty":95480,"proposedPenalty":142148,"currentAssessment":96812},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"3013993","VIOLATION_NO":"5220666","ISSUE_DT":"07/16/2026","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-16"},{"SOURCE_ROW_NUMBER":"3013992","VIOLATION_NO":"5220665","ISSUE_DT":"07/16/2026","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-16"},{"SOURCE_ROW_NUMBER":"3013991","VIOLATION_NO":"5220664","ISSUE_DT":"07/14/2026","CFR_STANDARD_CD":"57.14100(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"165.00","CURRENT_ASSESSMENT_AMT":"165.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"3013990","VIOLATION_NO":"5220663","ISSUE_DT":"07/14/2026","CFR_STANDARD_CD":"57.8520(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"165.00","CURRENT_ASSESSMENT_AMT":"165.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"3013989","VIOLATION_NO":"5220662","ISSUE_DT":"07/14/2026","CFR_STANDARD_CD":"57.5001(a)/.5005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"3013988","VIOLATION_NO":"5220661","ISSUE_DT":"07/14/2026","CFR_STANDARD_CD":"57.3200","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"549.00","CURRENT_ASSESSMENT_AMT":"549.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"3039913","VIOLATION_NO":"9768158","ISSUE_DT":"07/08/2026","CFR_STANDARD_CD":"57.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-08"},{"SOURCE_ROW_NUMBER":"3039912","VIOLATION_NO":"9768157","ISSUE_DT":"07/07/2026","CFR_STANDARD_CD":"57.16005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"165.00","CURRENT_ASSESSMENT_AMT":"165.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"3039911","VIOLATION_NO":"9768156","ISSUE_DT":"07/07/2026","CFR_STANDARD_CD":"57.12030","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"3039910","VIOLATION_NO":"9768155","ISSUE_DT":"07/07/2026","CFR_STANDARD_CD":"57.12025","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"3039909","VIOLATION_NO":"9768154","ISSUE_DT":"07/07/2026","CFR_STANDARD_CD":"57.20003(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"549.00","CURRENT_ASSESSMENT_AMT":"549.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"3039908","VIOLATION_NO":"9768153","ISSUE_DT":"07/07/2026","CFR_STANDARD_CD":"57.20003(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-07-07"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":23,"firstDate":"2020-10-08","lastDate":"2025-09-25","metrics":{"appeals":0,"decisions":23,"recentRows":21,"decisionPenalty":15929,"originalPenalty":66771},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"454511","VIOLATION_NO":"9998016","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"388.00","DECISION_PENALTY_AMT":"173.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Simonton","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"454510","VIOLATION_NO":"9998014","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"2862.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Simonton","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"454509","VIOLATION_NO":"9763175","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1188.00","DECISION_PENALTY_AMT":"357.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Simonton","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"454508","VIOLATION_NO":"9763170","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"592.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Simonton","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"164337","VIOLATION_NO":"9998015","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1773.00","DECISION_PENALTY_AMT":"1773.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Simonton","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"443499","VIOLATION_NO":"9579806","DOCKET_NO":"CENT 2024-0093","DECISION_DT":"07/10/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"4139.00","DECISION_PENALTY_AMT":"872.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-07-10"},{"SOURCE_ROW_NUMBER":"453200","VIOLATION_NO":"9768621","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Vacate","ORIGINAL_PENALTY_AMT":"2644.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"453199","VIOLATION_NO":"9768614","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"453198","VIOLATION_NO":"9579332","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"452982","VIOLATION_NO":"9577792","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"576.00","DECISION_PENALTY_AMT":"576.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"452108","VIOLATION_NO":"9577791","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"260.00","DECISION_PENALTY_AMT":"260.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"451858","VIOLATION_NO":"9768619","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":17,"firstDate":"2019-07-08","lastDate":"2025-01-21","metrics":{"linkedIssuances":17},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":23,"firstDate":"2020-03-03","lastDate":"2024-12-05","metrics":{"decisions":23,"ssChanged":5,"recentRows":21,"decisionPenalty":15929,"proposedPenalty":66771},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"108788","CITATION_NO":"9998016","CITATION_ISSUE_DT":"12/05/2024","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","CFR_STANDARD_CODE":"57.5001(a)/.5005","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"388.00","DECISION_PENALTY_AMT":"173.00","sourceDate":"2024-12-05"},{"SOURCE_ROW_NUMBER":"450985","CITATION_NO":"9763175","CITATION_ISSUE_DT":"12/04/2024","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","CFR_STANDARD_CODE":"57.20001","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1188.00","DECISION_PENALTY_AMT":"357.00","sourceDate":"2024-12-04"},{"SOURCE_ROW_NUMBER":"164962","CITATION_NO":"9998015","CITATION_ISSUE_DT":"12/04/2024","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","CFR_STANDARD_CODE":"57.3200","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1773.00","DECISION_PENALTY_AMT":"1773.00","sourceDate":"2024-12-04"},{"SOURCE_ROW_NUMBER":"337795","CITATION_NO":"9998014","CITATION_ISSUE_DT":"12/03/2024","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","CFR_STANDARD_CODE":"57.3200","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"2862.00","sourceDate":"2024-12-03"},{"SOURCE_ROW_NUMBER":"164623","CITATION_NO":"9763170","CITATION_ISSUE_DT":"12/03/2024","DOCKET_NO":"CENT 2025-0155","DECISION_DT":"09/25/2025","CFR_STANDARD_CODE":"57.3200","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"592.00","sourceDate":"2024-12-03"},{"SOURCE_ROW_NUMBER":"390952","CITATION_NO":"9768621","CITATION_ISSUE_DT":"07/23/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.18002(a)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2644.00","DECISION_PENALTY_AMT":".00","sourceDate":"2024-07-23"},{"SOURCE_ROW_NUMBER":"277541","CITATION_NO":"9768616","CITATION_ISSUE_DT":"07/23/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.11058","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"357.00","DECISION_PENALTY_AMT":"357.00","sourceDate":"2024-07-23"},{"SOURCE_ROW_NUMBER":"166052","CITATION_NO":"9768619","CITATION_ISSUE_DT":"07/23/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.14107(a)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","sourceDate":"2024-07-23"},{"SOURCE_ROW_NUMBER":"53066","CITATION_NO":"9768614","CITATION_ISSUE_DT":"07/23/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.4200(b)(2)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","sourceDate":"2024-07-23"},{"SOURCE_ROW_NUMBER":"448818","CITATION_NO":"9767232","CITATION_ISSUE_DT":"05/21/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.3200","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"577.00","sourceDate":"2024-05-21"},{"SOURCE_ROW_NUMBER":"338030","CITATION_NO":"9577791","CITATION_ISSUE_DT":"05/21/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.12032","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"260.00","DECISION_PENALTY_AMT":"260.00","sourceDate":"2024-05-21"},{"SOURCE_ROW_NUMBER":"335413","CITATION_NO":"9577789","CITATION_ISSUE_DT":"05/21/2024","DOCKET_NO":"CENT 2025-0070","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"57.20003(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"2862.00","sourceDate":"2024-05-21"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":251,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":67,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":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":2,"firstDate":"2014-11-21","lastDate":"2014-11-21","metrics":{"recentRows":0,"currentOperatorTenures":2,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":86,"firstDate":"2015-08-25","lastDate":"2026-10-05","metrics":{"inspectors":104,"recentRows":58,"onSiteHours":859,"inspectionHours":1962.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"146293","EVENT_NO":"F02A28C","INSPECTION_BEGIN_DT":"10/05/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"0","SUM_TOTAL_INSP_HOURS":"0","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2026-10-05"},{"SOURCE_ROW_NUMBER":"864870","EVENT_NO":"F034CD8","INSPECTION_BEGIN_DT":"09/25/2026","INSPECTION_END_DT":"09/29/2026","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"45","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2026-09-25"},{"SOURCE_ROW_NUMBER":"839732","EVENT_NO":"F02A28A","INSPECTION_BEGIN_DT":"09/09/2026","INSPECTION_END_DT":"09/29/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"8033","EVENT_NO":"F02A289","INSPECTION_BEGIN_DT":"09/08/2026","INSPECTION_END_DT":"09/29/2026","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"48.5","SUM_TOTAL_ON_SITE_HOURS":"16.5","sourceDate":"2026-09-08"},{"SOURCE_ROW_NUMBER":"874450","EVENT_NO":"F02A287","INSPECTION_BEGIN_DT":"08/23/2026","INSPECTION_END_DT":"09/10/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12.25","SUM_TOTAL_ON_SITE_HOURS":"5.25","sourceDate":"2026-08-23"},{"SOURCE_ROW_NUMBER":"1096133","EVENT_NO":"F02A286","INSPECTION_BEGIN_DT":"07/27/2026","INSPECTION_END_DT":"08/24/2026","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"25.75","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2026-07-27"},{"SOURCE_ROW_NUMBER":"976659","EVENT_NO":"F02A283","INSPECTION_BEGIN_DT":"07/13/2026","INSPECTION_END_DT":"07/30/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"59.75","SUM_TOTAL_ON_SITE_HOURS":"29.5","sourceDate":"2026-07-13"},{"SOURCE_ROW_NUMBER":"773358","EVENT_NO":"F042E97","INSPECTION_BEGIN_DT":"07/06/2026","INSPECTION_END_DT":"07/08/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"33","SUM_TOTAL_ON_SITE_HOURS":"19","sourceDate":"2026-07-06"},{"SOURCE_ROW_NUMBER":"498471","EVENT_NO":"F042E98","INSPECTION_BEGIN_DT":"07/06/2026","INSPECTION_END_DT":"07/08/2026","ACTIVITY_CODE":"E23","ACTIVITY":"Impoundment Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2026-07-06"},{"SOURCE_ROW_NUMBER":"126955","EVENT_NO":"F02A77A","INSPECTION_BEGIN_DT":"06/01/2026","INSPECTION_END_DT":"06/04/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16.5","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2026-06-01"},{"SOURCE_ROW_NUMBER":"675759","EVENT_NO":"F024E36","INSPECTION_BEGIN_DT":"04/06/2026","INSPECTION_END_DT":"04/08/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"39","SUM_TOTAL_ON_SITE_HOURS":"21","sourceDate":"2026-04-06"},{"SOURCE_ROW_NUMBER":"59068","EVENT_NO":"F01EB4A","INSPECTION_BEGIN_DT":"03/30/2026","INSPECTION_END_DT":"03/30/2026","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.25","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2026-03-30"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":144,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":13760,"employees":23,"production":0},"2026-Q1":{"hours":11970,"employees":24,"production":0},"2025-Q4":{"hours":11854,"employees":23,"production":0},"2025-Q3":{"hours":12701,"employees":22,"production":0},"2025-Q2":{"hours":11595,"employees":19,"production":0},"2025-Q1":{"hours":8825,"employees":18,"production":0},"2024-Q4":{"hours":10894,"employees":18,"production":0},"2024-Q3":{"hours":11955,"employees":21,"production":0},"2024-Q2":{"hours":11820,"employees":20,"production":0},"2024-Q1":{"hours":12739,"employees":21,"production":0},"2023-Q4":{"hours":11488,"employees":22,"production":0},"2023-Q3":{"hours":12016,"employees":21,"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":38,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":23099,"employees":10,"production":0},"2018":{"hours":18333,"employees":10,"production":0},"2019":{"hours":23864,"employees":12,"production":0},"2020":{"hours":29757,"employees":15,"production":0},"2021":{"hours":41127,"employees":21,"production":0},"2022":{"hours":55472,"employees":22,"production":0},"2023":{"hours":50902,"employees":21,"production":0},"2024":{"hours":47408,"employees":21,"production":0},"2025":{"hours":44975,"employees":21,"production":0},"2026":{"hours":25730,"employees":25,"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":118,"firstDate":"2018-01-10","lastDate":"2026-07-15","metrics":{"recentRows":85,"actionTaken":118,"maxExposureRatio":4.91,"overExposureLimit":10,"exposureRatioTotal":36},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"312842","EVENT_NO":"F02A283","SAMPLE_NO":"000000202602872700","SAMPLE_DATE":"07/15/2026","CONTAMINANT_DESC":"Nuisance dust, total, <1% Qtz","CONCENTRATION":"0001.18","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.12","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-07-15"},{"SOURCE_ROW_NUMBER":"312837","EVENT_NO":"F02A283","SAMPLE_NO":"000000202602873100","SAMPLE_DATE":"07/15/2026","CONTAMINANT_DESC":"Nuisance dust, total, <1% Qtz","CONCENTRATION":"0003.41","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.34","JOB_CD_DESC":"Utility Man","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-07-15"},{"SOURCE_ROW_NUMBER":"312836","EVENT_NO":"F02A283","SAMPLE_NO":"000000202602872800","SAMPLE_DATE":"07/15/2026","CONTAMINANT_DESC":"Nuisance dust, total, <1% Qtz","CONCENTRATION":"0003.87","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.39","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-07-15"},{"SOURCE_ROW_NUMBER":"312822","EVENT_NO":"F02A283","SAMPLE_NO":"000000202602872900","SAMPLE_DATE":"07/15/2026","CONTAMINANT_DESC":"Nuisance dust, total, <1% Qtz","CONCENTRATION":"0001.56","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.16","JOB_CD_DESC":"Drill Operator, Jumbo Perc.","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-07-15"},{"SOURCE_ROW_NUMBER":"312820","EVENT_NO":"F02A283","SAMPLE_NO":"000000202602873000","SAMPLE_DATE":"07/15/2026","CONTAMINANT_DESC":"Nuisance dust, total, <1% Qtz","CONCENTRATION":"0004.79","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.48","JOB_CD_DESC":"Drill Operator, Jumbo Perc.","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-07-15"},{"SOURCE_ROW_NUMBER":"311519","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601415021","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"TC from EC @ 160","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0160.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311518","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601415023","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"TC @ 160","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0160.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311517","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601415024","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"ORGANIC CARBON","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311516","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601415022","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"EC @ 160","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0160.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311515","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601414921","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"TC from EC @ 160","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0160.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311514","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601414923","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"TC @ 160","CONCENTRATION":"0092.00","EXPOSURE_LIMIT":"0160.00","C_OVER_E":"00.58","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"},{"SOURCE_ROW_NUMBER":"311513","EVENT_NO":"F024E36","SAMPLE_NO":"000000202601414924","SAMPLE_DATE":"04/08/2026","CONTAMINANT_DESC":"ORGANIC CARBON","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-04-08"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":244,"firstDate":"2015-08-25","lastDate":"2026-09-28","metrics":{"ss":40,"amountDue":96812,"contested":0,"amountPaid":95480,"recentRows":169,"section104d":0,"unterminated":0,"proposedPenalty":142148},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1451418","VIOLATION_NO":"5220387","VIOLATION_ISSUE_DT":"09/28/2026","SIG_SUB":"Y","PART_SECTION":"57.6306(f)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/29/2026","CONTESTED_IND":"N","sourceDate":"2026-09-28"},{"SOURCE_ROW_NUMBER":"1451413","VIOLATION_NO":"5220770","VIOLATION_ISSUE_DT":"09/09/2026","SIG_SUB":"N","PART_SECTION":"56.5001(a)/.5005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/23/2026","CONTESTED_IND":"N","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"1451370","VIOLATION_NO":"5220666","VIOLATION_ISSUE_DT":"07/16/2026","SIG_SUB":"N","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/09/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-16"},{"SOURCE_ROW_NUMBER":"1451369","VIOLATION_NO":"5220665","VIOLATION_ISSUE_DT":"07/16/2026","SIG_SUB":"N","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"2","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/09/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-16"},{"SOURCE_ROW_NUMBER":"1451368","VIOLATION_NO":"5220664","VIOLATION_ISSUE_DT":"07/14/2026","SIG_SUB":"N","PART_SECTION":"57.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/15/2026","PROPOSED_PENALTY":"165","AMOUNT_DUE":"165","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"1451367","VIOLATION_NO":"5220663","VIOLATION_ISSUE_DT":"07/14/2026","SIG_SUB":"N","PART_SECTION":"57.8520(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/07/2026","PROPOSED_PENALTY":"165","AMOUNT_DUE":"165","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"1451366","VIOLATION_NO":"5220662","VIOLATION_ISSUE_DT":"07/14/2026","SIG_SUB":"N","PART_SECTION":"57.5001(a)/.5005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"07/17/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"1451365","VIOLATION_NO":"5220661","VIOLATION_ISSUE_DT":"07/14/2026","SIG_SUB":"N","PART_SECTION":"57.3200","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"07/15/2026","PROPOSED_PENALTY":"549","AMOUNT_DUE":"549","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-07-14"},{"SOURCE_ROW_NUMBER":"1451364","VIOLATION_NO":"9768158","VIOLATION_ISSUE_DT":"07/08/2026","SIG_SUB":"N","PART_SECTION":"57.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/08/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-07-08"},{"SOURCE_ROW_NUMBER":"1451363","VIOLATION_NO":"9768157","VIOLATION_ISSUE_DT":"07/07/2026","SIG_SUB":"N","PART_SECTION":"57.16005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/07/2026","PROPOSED_PENALTY":"165","AMOUNT_DUE":"165","AMOUNT_PAID":"165","CONTESTED_IND":"N","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"1451362","VIOLATION_NO":"9768156","VIOLATION_ISSUE_DT":"07/07/2026","SIG_SUB":"N","PART_SECTION":"57.12030","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/07/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"1451361","VIOLATION_NO":"9768155","VIOLATION_ISSUE_DT":"07/07/2026","SIG_SUB":"N","PART_SECTION":"57.12025","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/07/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-07-07"}]}],"safety":{"href":"/api/v1/mines/2302487/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2302487/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":"Loading, blasting, and security.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6306","part":"57","subchapter":"K","subpart":"E","id":"57.6306","citation":"30 CFR 57.6306","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Exposure limits for airborne contaminants.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001","part":"56","subchapter":"K","subpart":"D","id":"56.5001","citation":"30 CFR 56.5001","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","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 62.130","heading":"Permissible exposure level.","id":"62.130","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.130","part":"62","partHeading":"PART 62—OCCUPATIONAL NOISE EXPOSURE","subchapter":"M","subchapterHeading":"SUBCHAPTER M—UNIFORM MINE HEALTH REGULATIONS","subpart":"","subpartHeading":"","text":"(a) The mine operator must assure that no miner is exposed during any work shift to noise that exceeds the permissible exposure level. If during any work shift a miner's noise exposure exceeds the permissible exposure level, the mine operator must use all feasible engineering and administrative controls to reduce the miner's noise exposure to the permissible exposure level, and enroll the miner in a hearing conservation program that complies with § 62.150 of this part. When a mine operator uses administrative controls to reduce a miner's exposure, the mine operator must post the procedures for such controls on the mine bulletin board and provide a copy to the affected miner.\n\n(b) If a miner's noise exposure continues to exceed the permissible exposure level despite the use of all feasible engineering and administrative controls, the mine operator must continue to use the engineering and administrative controls to reduce the miner's noise exposure to as low a level as is feasible.\n\n(c) The mine operator must assure that no miner is exposed at any time to sound levels exceeding 115 dBA, as determined without adjustment for the use of any hearing protector.","occurrenceCount":2},{"chapter":"I","heading":"Safety defects; examination, correction and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100","part":"57","subchapter":"K","subpart":"M","id":"57.14100","citation":"30 CFR 57.14100","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Ventilation plan.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-G/section-57.8520","part":"57","subchapter":"K","subpart":"G","id":"57.8520","citation":"30 CFR 57.8520","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Exposure limits for airborne contaminants.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5001","part":"57","subchapter":"K","subpart":"D","id":"57.5001","citation":"30 CFR 57.5001","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Correction of hazardous conditions.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200","part":"57","subchapter":"K","subpart":"B","id":"57.3200","citation":"30 CFR 57.3200","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Electrical conductors.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004","part":"57","subchapter":"K","subpart":"K","id":"57.12004","citation":"30 CFR 57.12004","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Securing gas cylinders.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-O/section-57.16005","part":"57","subchapter":"K","subpart":"O","id":"57.16005","citation":"30 CFR 57.16005","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Correction of dangerous conditions.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12030","part":"57","subchapter":"K","subpart":"K","id":"57.12030","citation":"30 CFR 57.12030","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Grounding circuit enclosures.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12025","part":"57","subchapter":"K","subpart":"K","id":"57.12025","citation":"30 CFR 57.12025","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"2302487","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}