{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"0504509","name":"Penrose Ranch Gravel Pit","status":"Active","status_date":"2016-10-01","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"CO","county":"Fremont","nearest_town":"Florence","operator_id":"L16197","operator_name":"Martin Marietta Materials Inc.","controller_id":"M00174","controller_name":"Martin Marietta Materials Inc","district":"M6","office":"Denver CO Field Office","employees":11,"latitude":38.353889,"longitude":-105.030278},"coverage":{"contributingSources":15,"registeredSources":20,"sourceRows":520},"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":"0504509","name":"Penrose Ranch Gravel Pit"},"operator":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc."},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"0504509","name":"Penrose Ranch Gravel Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|M00174|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04747","name":"Stephen  Schnurr"},"object":{"type":"mine","id":"0504509","name":"Penrose Ranch Gravel Pit"},"validFrom":"1990-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|M04747|1990-11-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11985","name":"Rocky Mountain Materials & Asphalt Inc"},"object":{"type":"mine","id":"0504509","name":"Penrose Ranch Gravel Pit"},"validFrom":"1992-12-01","validTo":"2016-03-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|L11985|1992-12-01|2016-03-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04747","name":"Stephen  Schnurr"},"object":{"type":"operator","id":"L11985","name":"Rocky Mountain Materials & Asphalt Inc"},"validFrom":"1992-12-01","validTo":"2016-03-03","current":false,"derived":true,"evidenceMineId":"0504509","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|L11985|1992-12-01|M04747|1990-11-01|132680"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc."},"object":{"type":"mine","id":"0504509","name":"Penrose Ranch Gravel Pit"},"validFrom":"2016-03-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|L16197|2016-03-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc."},"validFrom":"2016-03-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504509","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0504509|L16197|2016-03-04|M00174|1950-01-01|105663"}}],"coverage":{"historyRecords":2,"edgeCount":6,"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":1,"firstDate":"2016-11-15","lastDate":"2016-11-15","metrics":{"daysLost":2,"injuries":1,"fatalities":0,"recentRows":0,"restrictedDays":16,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"164020","DOCUMENT_NO":"220163360013","ACCIDENT_DT":"11/15/2016","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"STEPPING OR KNEELING ON OBJECT","ACCIDENT_TYPE":"Struck against stationary object","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","DAYS_LOST":"2","NARRATIVE":"Employee was climbing up the ladder on the loader on the pit floor when ee felt a slight pull in the back area on the right leg just above the knee. Employee then climbed down and notified supervisor about the incident that had just happened.","sourceDate":"2016-11-15"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2016-10-01","lastDate":"2016-10-01","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":129,"firstDate":"2000-01-13","lastDate":"2026-06-04","metrics":{"ss":25,"delinquent":123,"recentRows":22,"paidPenalty":31702,"proposedPenalty":37908,"currentAssessment":31702},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2994050","VIOLATION_NO":"5057170","ISSUE_DT":"06/04/2026","CFR_STANDARD_CD":"56.14101(a)(3)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-06-04"},{"SOURCE_ROW_NUMBER":"2994049","VIOLATION_NO":"5057169","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"56.18002(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"2994048","VIOLATION_NO":"5057168","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"45.4(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"2994047","VIOLATION_NO":"5057167","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"56.20011","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"2994046","VIOLATION_NO":"5057166","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"56.14132(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":"2026-06-03"},{"SOURCE_ROW_NUMBER":"2994045","VIOLATION_NO":"5057165","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"56.4101","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"3019206","VIOLATION_NO":"5054274","ISSUE_DT":"11/06/2025","CFR_STANDARD_CD":"56.14100(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-11-06"},{"SOURCE_ROW_NUMBER":"3019205","VIOLATION_NO":"5054273","ISSUE_DT":"11/06/2025","CFR_STANDARD_CD":"56.12008","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"193.00","CURRENT_ASSESSMENT_AMT":"193.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-11-06"},{"SOURCE_ROW_NUMBER":"2972484","VIOLATION_NO":"5050466","ISSUE_DT":"04/15/2025","CFR_STANDARD_CD":"56.14101(a)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"2972483","VIOLATION_NO":"5050465","ISSUE_DT":"04/15/2025","CFR_STANDARD_CD":"56.14132(b)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"2766224","VIOLATION_NO":"9822608","ISSUE_DT":"07/12/2024","CFR_STANDARD_CD":"56.16005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"204.00","CURRENT_ASSESSMENT_AMT":"204.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-07-12"},{"SOURCE_ROW_NUMBER":"2766223","VIOLATION_NO":"9822607","ISSUE_DT":"07/12/2024","CFR_STANDARD_CD":"56.14101(a)(3)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-07-12"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":9,"firstDate":"2016-06-13","lastDate":"2023-08-23","metrics":{"appeals":0,"decisions":9,"recentRows":1,"decisionPenalty":8568,"originalPenalty":14774},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"448929","VIOLATION_NO":"9728673","DOCKET_NO":"WEST 2023-0199","DECISION_DT":"08/23/2023","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"143.00","DECISION_PENALTY_AMT":"143.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2023-08-23"},{"SOURCE_ROW_NUMBER":"436265","VIOLATION_NO":"9398523","DOCKET_NO":"WEST 2020-0420","DECISION_DT":"12/31/2020","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"123.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2020-12-31"},{"SOURCE_ROW_NUMBER":"193607","VIOLATION_NO":"9398524","DOCKET_NO":"WEST 2020-0420","DECISION_DT":"12/31/2020","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"123.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2020-12-31"},{"SOURCE_ROW_NUMBER":"397196","VIOLATION_NO":"8931842","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1700.00","DECISION_PENALTY_AMT":"800.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"},{"SOURCE_ROW_NUMBER":"397036","VIOLATION_NO":"8931843","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1700.00","DECISION_PENALTY_AMT":"800.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"},{"SOURCE_ROW_NUMBER":"396646","VIOLATION_NO":"8931855","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"5080.00","DECISION_PENALTY_AMT":"3000.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"},{"SOURCE_ROW_NUMBER":"155509","VIOLATION_NO":"8931847","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"138.00","DECISION_PENALTY_AMT":"138.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"},{"SOURCE_ROW_NUMBER":"155292","VIOLATION_NO":"8931856","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"5080.00","DECISION_PENALTY_AMT":"3000.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"},{"SOURCE_ROW_NUMBER":"154333","VIOLATION_NO":"8931846","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"687.00","DECISION_PENALTY_AMT":"687.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2016-06-13"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":3,"firstDate":"2006-11-01","lastDate":"2006-11-01","metrics":{"linkedIssuances":3},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":9,"firstDate":"2015-04-29","lastDate":"2023-02-22","metrics":{"decisions":9,"ssChanged":3,"recentRows":1,"decisionPenalty":8568,"proposedPenalty":14774},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"108046","CITATION_NO":"9728673","CITATION_ISSUE_DT":"02/22/2023","DOCKET_NO":"WEST 2023-0199","DECISION_DT":"08/23/2023","CFR_STANDARD_CODE":"56.20003(a)","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"143.00","DECISION_PENALTY_AMT":"143.00","sourceDate":"2023-02-22"},{"SOURCE_ROW_NUMBER":"441171","CITATION_NO":"9398523","CITATION_ISSUE_DT":"06/23/2020","DOCKET_NO":"WEST 2020-0420","DECISION_DT":"12/31/2020","CFR_STANDARD_CODE":"56.16009","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"123.00","DECISION_PENALTY_AMT":".00","sourceDate":"2020-06-23"},{"SOURCE_ROW_NUMBER":"330192","CITATION_NO":"9398524","CITATION_ISSUE_DT":"06/23/2020","DOCKET_NO":"WEST 2020-0420","DECISION_DT":"12/31/2020","CFR_STANDARD_CODE":"56.14201(b)","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"123.00","DECISION_PENALTY_AMT":".00","sourceDate":"2020-06-23"},{"SOURCE_ROW_NUMBER":"437827","CITATION_NO":"8931846","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.14132(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"687.00","DECISION_PENALTY_AMT":"687.00","sourceDate":"2015-04-29"},{"SOURCE_ROW_NUMBER":"432271","CITATION_NO":"8931843","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.11001","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1700.00","DECISION_PENALTY_AMT":"800.00","sourceDate":"2015-04-29"},{"SOURCE_ROW_NUMBER":"431849","CITATION_NO":"8931847","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.14107(a)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"138.00","DECISION_PENALTY_AMT":"138.00","sourceDate":"2015-04-29"},{"SOURCE_ROW_NUMBER":"375174","CITATION_NO":"8931856","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.12004","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"5080.00","DECISION_PENALTY_AMT":"3000.00","sourceDate":"2015-04-29"},{"SOURCE_ROW_NUMBER":"322447","CITATION_NO":"8931855","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.12004","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"5080.00","DECISION_PENALTY_AMT":"3000.00","sourceDate":"2015-04-29"},{"SOURCE_ROW_NUMBER":"148971","CITATION_NO":"8931842","CITATION_ISSUE_DT":"04/29/2015","DOCKET_NO":"WEST 2015-0833","DECISION_DT":"06/13/2016","CFR_STANDARD_CODE":"56.15005","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1700.00","DECISION_PENALTY_AMT":"800.00","sourceDate":"2015-04-29"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":61,"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":18,"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":"1992-12-01","lastDate":"2016-03-04","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":59,"firstDate":"2000-01-13","lastDate":"2026-06-02","metrics":{"inspectors":60,"recentRows":14,"onSiteHours":622.75,"inspectionHours":1043,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"22836","EVENT_NO":"F01CB63","INSPECTION_BEGIN_DT":"06/02/2026","INSPECTION_END_DT":"06/05/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"39.5","SUM_TOTAL_ON_SITE_HOURS":"21.5","sourceDate":"2026-06-02"},{"SOURCE_ROW_NUMBER":"1112135","EVENT_NO":"F02CF3B","INSPECTION_BEGIN_DT":"11/06/2025","INSPECTION_END_DT":"11/12/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"20","SUM_TOTAL_ON_SITE_HOURS":"13.5","sourceDate":"2025-11-06"},{"SOURCE_ROW_NUMBER":"1150461","EVENT_NO":"F01582D","INSPECTION_BEGIN_DT":"04/14/2025","INSPECTION_END_DT":"04/17/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"22.5","SUM_TOTAL_ON_SITE_HOURS":"12.25","sourceDate":"2025-04-14"},{"SOURCE_ROW_NUMBER":"510571","EVENT_NO":"F004234","INSPECTION_BEGIN_DT":"01/06/2025","INSPECTION_END_DT":"01/07/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2025-01-06"},{"SOURCE_ROW_NUMBER":"1049811","EVENT_NO":"6947699","INSPECTION_BEGIN_DT":"07/11/2024","INSPECTION_END_DT":"07/12/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17.5","SUM_TOTAL_ON_SITE_HOURS":"8.75","sourceDate":"2024-07-11"},{"SOURCE_ROW_NUMBER":"1064040","EVENT_NO":"6947788","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":"872072","EVENT_NO":"6947764","INSPECTION_BEGIN_DT":"02/27/2024","INSPECTION_END_DT":"02/28/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"26","SUM_TOTAL_ON_SITE_HOURS":"18.25","sourceDate":"2024-02-27"},{"SOURCE_ROW_NUMBER":"689917","EVENT_NO":"6946443","INSPECTION_BEGIN_DT":"07/18/2023","INSPECTION_END_DT":"07/18/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2023-07-18"},{"SOURCE_ROW_NUMBER":"1131981","EVENT_NO":"6941046","INSPECTION_BEGIN_DT":"02/21/2023","INSPECTION_END_DT":"02/22/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"22.25","SUM_TOTAL_ON_SITE_HOURS":"15.75","sourceDate":"2023-02-21"},{"SOURCE_ROW_NUMBER":"252229","EVENT_NO":"6858224","INSPECTION_BEGIN_DT":"06/02/2022","INSPECTION_END_DT":"06/06/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"22.75","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2022-06-02"},{"SOURCE_ROW_NUMBER":"500630","EVENT_NO":"6858209","INSPECTION_BEGIN_DT":"03/22/2022","INSPECTION_END_DT":"03/23/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"7.5","sourceDate":"2022-03-22"},{"SOURCE_ROW_NUMBER":"760745","EVENT_NO":"6853561","INSPECTION_BEGIN_DT":"11/02/2021","INSPECTION_END_DT":"11/03/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"23","SUM_TOTAL_ON_SITE_HOURS":"16.75","sourceDate":"2021-11-02"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":12,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002-Q4":{"hours":1378,"employees":2,"production":0},"2002-Q3":{"hours":1441,"employees":2,"production":0},"2002-Q2":{"hours":1397,"employees":2,"production":0},"2002-Q1":{"hours":889,"employees":2,"production":0},"2001-Q4":{"hours":1204,"employees":2,"production":0},"2001-Q3":{"hours":1333,"employees":2,"production":0},"2001-Q2":{"hours":1344,"employees":2,"production":0},"2001-Q1":{"hours":2057,"employees":4,"production":0},"2000-Q4":{"hours":962,"employees":2,"production":0},"2000-Q3":{"hours":1251,"employees":2,"production":0},"2000-Q2":{"hours":1396,"employees":5,"production":0},"2000-Q1":{"hours":733,"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":50,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":24133,"employees":10,"production":0},"2018":{"hours":23285,"employees":9,"production":0},"2019":{"hours":24629,"employees":10,"production":0},"2020":{"hours":23637,"employees":11,"production":0},"2021":{"hours":23030,"employees":11,"production":0},"2022":{"hours":23683,"employees":11,"production":0},"2023":{"hours":28674,"employees":12,"production":0},"2024":{"hours":21470,"employees":10,"production":0},"2025":{"hours":18456,"employees":10,"production":0},"2026":{"hours":8673,"employees":8,"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":35,"firstDate":"2005-10-05","lastDate":"2024-02-28","metrics":{"recentRows":12,"actionTaken":35,"maxExposureRatio":0.3,"overExposureLimit":0,"exposureRatioTotal":2.79},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"285709","EVENT_NO":"6947764","SAMPLE_NO":"000000202400880700","SAMPLE_DATE":"02/28/2024","CONTAMINANT_DESC":"Respirable dust, <.1mg","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":"2024-02-28"},{"SOURCE_ROW_NUMBER":"285708","EVENT_NO":"6947764","SAMPLE_NO":"000000202400880600","SAMPLE_DATE":"02/28/2024","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.12","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Dry Screen Plant Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-02-28"},{"SOURCE_ROW_NUMBER":"285707","EVENT_NO":"6947764","SAMPLE_NO":"000000202400880500","SAMPLE_DATE":"02/28/2024","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.13","EXPOSURE_LIMIT":"0000.75","C_OVER_E":"00.17","JOB_CD_DESC":"Mechanic","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-02-28"},{"SOURCE_ROW_NUMBER":"285706","EVENT_NO":"6947764","SAMPLE_NO":"000000202400880400","SAMPLE_DATE":"02/28/2024","CONTAMINANT_DESC":"Respirable dust, <.1mg","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":"2024-02-28"},{"SOURCE_ROW_NUMBER":"267799","EVENT_NO":"6941046","SAMPLE_NO":"000000202300774000","SAMPLE_DATE":"02/22/2023","CONTAMINANT_DESC":"Respirable dust, <.1mg","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":"2023-02-22"},{"SOURCE_ROW_NUMBER":"267798","EVENT_NO":"6941046","SAMPLE_NO":"000000202300773900","SAMPLE_DATE":"02/22/2023","CONTAMINANT_DESC":"Respirable dust, <.1mg","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":"2023-02-22"},{"SOURCE_ROW_NUMBER":"267797","EVENT_NO":"6941046","SAMPLE_NO":"000000202300773800","SAMPLE_DATE":"02/22/2023","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Mechanic","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2023-02-22"},{"SOURCE_ROW_NUMBER":"267796","EVENT_NO":"6941046","SAMPLE_NO":"000000202300773700","SAMPLE_DATE":"02/22/2023","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Laborer, Bullgang","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2023-02-22"},{"SOURCE_ROW_NUMBER":"251900","EVENT_NO":"6853561","SAMPLE_NO":"000000202104568800","SAMPLE_DATE":"11/03/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","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":"2021-11-03"},{"SOURCE_ROW_NUMBER":"251899","EVENT_NO":"6853561","SAMPLE_NO":"000000202104568700","SAMPLE_DATE":"11/03/2021","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.17","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Laborer, Bullgang","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-11-03"},{"SOURCE_ROW_NUMBER":"251898","EVENT_NO":"6853561","SAMPLE_NO":"000000202104568600","SAMPLE_DATE":"11/03/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Laborer, Bullgang","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-11-03"},{"SOURCE_ROW_NUMBER":"251897","EVENT_NO":"6853561","SAMPLE_NO":"000000202104568500","SAMPLE_DATE":"11/03/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Mechanic","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-11-03"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":130,"firstDate":"2000-01-13","lastDate":"2026-06-04","metrics":{"ss":25,"amountDue":31702,"contested":0,"amountPaid":31702,"recentRows":22,"section104d":0,"unterminated":0,"proposedPenalty":37908},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"325289","VIOLATION_NO":"5057170","VIOLATION_ISSUE_DT":"06/04/2026","SIG_SUB":"N","PART_SECTION":"56.14101(a)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/04/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-04"},{"SOURCE_ROW_NUMBER":"325288","VIOLATION_NO":"5057169","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"56.18002(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"06/04/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"325287","VIOLATION_NO":"5057168","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"45.4(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/03/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"325286","VIOLATION_NO":"5057167","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"56.20011","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/03/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"325285","VIOLATION_NO":"5057166","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"56.14132(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/04/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"325284","VIOLATION_NO":"5057165","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"56.4101","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/03/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"325337","VIOLATION_NO":"5054274","VIOLATION_ISSUE_DT":"11/06/2025","SIG_SUB":"N","PART_SECTION":"56.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"11/12/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-11-06"},{"SOURCE_ROW_NUMBER":"325336","VIOLATION_NO":"5054273","VIOLATION_ISSUE_DT":"11/06/2025","SIG_SUB":"N","PART_SECTION":"56.12008","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"11/12/2025","PROPOSED_PENALTY":"193","AMOUNT_DUE":"193","AMOUNT_PAID":"193","CONTESTED_IND":"N","sourceDate":"2025-11-06"},{"SOURCE_ROW_NUMBER":"325260","VIOLATION_NO":"5050466","VIOLATION_ISSUE_DT":"04/15/2025","SIG_SUB":"N","PART_SECTION":"56.14101(a)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/15/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"325259","VIOLATION_NO":"5050465","VIOLATION_ISSUE_DT":"04/15/2025","SIG_SUB":"N","PART_SECTION":"56.14132(b)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/15/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"325304","VIOLATION_NO":"9822608","VIOLATION_ISSUE_DT":"07/12/2024","SIG_SUB":"N","PART_SECTION":"56.16005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/12/2024","PROPOSED_PENALTY":"204","AMOUNT_DUE":"204","AMOUNT_PAID":"204","CONTESTED_IND":"N","sourceDate":"2024-07-12"},{"SOURCE_ROW_NUMBER":"325303","VIOLATION_NO":"9822607","VIOLATION_ISSUE_DT":"07/12/2024","SIG_SUB":"N","PART_SECTION":"56.14101(a)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"07/12/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-07-12"}]}],"safety":{"href":"/api/v1/mines/0504509/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0504509/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":"Brakes.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101","part":"56","subchapter":"K","subpart":"M","id":"56.14101","citation":"30 CFR 56.14101","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":3},{"chapter":"I","heading":"Examination of working places.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18002","part":"56","subchapter":"K","subpart":"Q","id":"56.18002","citation":"30 CFR 56.18002","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":"Independent contractor register.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4","part":"45","subchapter":"G","subpart":"","id":"45.4","citation":"30 CFR 45.4","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER G—FILING AND OTHER ADMINISTRATIVE REQUIREMENTS","partHeading":"PART 45—INDEPENDENT CONTRACTORS","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Barricades and warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011","part":"56","subchapter":"K","subpart":"S","id":"56.20011","citation":"30 CFR 56.20011","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":"Warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101","part":"56","subchapter":"K","subpart":"C","id":"56.4101","citation":"30 CFR 56.4101","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":"Safety defects; examination, correction and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100","part":"56","subchapter":"K","subpart":"M","id":"56.14100","citation":"30 CFR 56.14100","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":"Insulation and fittings for power wires and cables.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008","part":"56","subchapter":"K","subpart":"K","id":"56.12008","citation":"30 CFR 56.12008","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":"Securing gas cylinders.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005","part":"56","subchapter":"K","subpart":"O","id":"56.16005","citation":"30 CFR 56.16005","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":"0504509","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}