{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3303816","name":"Strip #3","status":"Abandoned","status_date":"2012-01-06","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"OH","county":"Jefferson","nearest_town":"Adena","operator_id":"P01493","operator_name":"Valley Mining, Inc.","controller_id":"C00186","controller_name":"Mary J  Brown","district":"C03","office":"St. Clairsville OH Field Office","employees":0,"latitude":40.218611,"longitude":-80.873055},"coverage":{"contributingSources":12,"registeredSources":20,"sourceRows":251},"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":"3303816","name":"Strip #3"},"operator":{"type":"operator","id":"P01493","name":"Valley Mining, Inc."},"controller":{"type":"controller","id":"C00186","name":"Mary J  Brown"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00186","name":"Mary J  Brown"},"object":{"type":"mine","id":"3303816","name":"Strip #3"},"validFrom":"1972-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3303816|C00186|1972-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01493","name":"Valley Mining, Inc."},"object":{"type":"mine","id":"3303816","name":"Strip #3"},"validFrom":"1980-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3303816|P01493|1980-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00186","name":"Mary J  Brown"},"object":{"type":"operator","id":"P01493","name":"Valley Mining, Inc."},"validFrom":"1980-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3303816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3303816|P01493|1980-05-01|C00186|1972-12-01|44756"}}],"coverage":{"historyRecords":1,"edgeCount":3,"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":3,"firstDate":"2001-07-26","lastDate":"2003-09-22","metrics":{"daysLost":7,"injuries":3,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"114144","DOCUMENT_NO":"220032690019","ACCIDENT_DT":"09/22/2003","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Welder (shop)","NO_INJURIES":"1","DAYS_LOST":"5","NARRATIVE":"EMPLOYEE WAS ASSISTING MECHANIC PUT A ROLLER ON D-10L DOZER. HE WELDED A BOGIE PIN TO THE FRAME TO GET ROLLER UNDER MACHINE WHEN THE WELD BROKE WHILE HE WAS PUTTING THE ROLLER IN PLACE. THE RO LLER BOGIE FELL DOWN, PINCHING HIS RIGHT ARM BETWEEN THE BOGIE AND A ROLLER ON THE GROUND.","sourceDate":"2003-09-22"},{"SOURCE_ROW_NUMBER":"256239","DOCUMENT_NO":"220022520118","ACCIDENT_DT":"08/15/2002","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall from machine","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"EMPLOYEE WAS GETTING OUT OF THE BACK OF THE PIT TRUCK AND SLIPPED AND FELL. HE PUT HIS RIGHT HAND DOWN TO CATCH HIMSELF FROM HITTING THE GROUND AND FRACTURED HIS RIGHT WRIST.","sourceDate":"2002-08-15"},{"SOURCE_ROW_NUMBER":"131241","DOCUMENT_NO":"220012190013","ACCIDENT_DT":"07/26/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall onto or against objects","OCCUPATION":"Coal/ore shovel operator,  Shoveler,  Power shoveler","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"OPERATOR WAS DISMOUNTING HIS MACHINE TO CHECK ON A 6\" WATER PUMP AND SLIPPED OFF THE MUDDY TRACK HITTING HIS STOMACH ON THE TRACK WHEN HE FELL.","sourceDate":"2001-07-26"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2012-01-06","lastDate":"2012-01-06","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":13,"firstDate":"2001-05-16","lastDate":"2006-04-04","metrics":{"ss":7,"delinquent":11,"recentRows":0,"paidPenalty":1239,"proposedPenalty":1239,"currentAssessment":1239},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"727466","VIOLATION_NO":"7125759","ISSUE_DT":"04/04/2006","CFR_STANDARD_CD":"77.403-ad)(2(iiib)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"727465","VIOLATION_NO":"7125758","ISSUE_DT":"04/04/2006","CFR_STANDARD_CD":"77.410(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"725105","VIOLATION_NO":"7123466","ISSUE_DT":"04/18/2005","CFR_STANDARD_CD":"77.1605(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-04-18"},{"SOURCE_ROW_NUMBER":"725104","VIOLATION_NO":"7123465","ISSUE_DT":"04/18/2005","CFR_STANDARD_CD":"77.1606(c)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"99.00","CURRENT_ASSESSMENT_AMT":"99.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-04-18"},{"SOURCE_ROW_NUMBER":"741383","VIOLATION_NO":"7118630","ISSUE_DT":"04/20/2004","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"135.00","CURRENT_ASSESSMENT_AMT":"135.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"741382","VIOLATION_NO":"7118629","ISSUE_DT":"04/20/2004","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"135.00","CURRENT_ASSESSMENT_AMT":"135.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"741380","VIOLATION_NO":"7118631","ISSUE_DT":"04/20/2004","CFR_STANDARD_CD":"71.403(d)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"741381","VIOLATION_NO":"7118628","ISSUE_DT":"04/19/2004","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"135.00","CURRENT_ASSESSMENT_AMT":"135.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-04-19"},{"SOURCE_ROW_NUMBER":"740741","VIOLATION_NO":"7119776","ISSUE_DT":"07/15/2003","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2003-07-15"},{"SOURCE_ROW_NUMBER":"740740","VIOLATION_NO":"7119775","ISSUE_DT":"07/09/2003","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2003-07-09"},{"SOURCE_ROW_NUMBER":"738440","VIOLATION_NO":"7133159","ISSUE_DT":"06/03/2002","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"131.00","CURRENT_ASSESSMENT_AMT":"131.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-06-03"},{"SOURCE_ROW_NUMBER":"738439","VIOLATION_NO":"7133158","ISSUE_DT":"05/23/2002","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"131.00","CURRENT_ASSESSMENT_AMT":"131.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-05-23"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":61,"firstDate":"2000-01-12","lastDate":"2006-11-15","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":1,"validSamples":60,"maxConcentration":12.61,"concentrationTotal":26.767},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"948393","CASS_NUM":"57638709","SMP_TAKEN_DT":"11/15/2006","CONC":".299","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BACKHOE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2006-11-15"},{"SOURCE_ROW_NUMBER":"423385","CASS_NUM":"57638754","SMP_TAKEN_DT":"11/15/2006","CONC":".267","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2006-11-15"},{"SOURCE_ROW_NUMBER":"1158675","CASS_NUM":"57616791","SMP_TAKEN_DT":"4/4/2006","CONC":".038","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"381560","CASS_NUM":"57527398","SMP_TAKEN_DT":"11/1/2005","CONC":".109","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-11-01"},{"SOURCE_ROW_NUMBER":"1527349","CASS_NUM":"57507468","SMP_TAKEN_DT":"4/19/2005","CONC":".197","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"ROTARY BUCKET EXCAVATOR OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-19"},{"SOURCE_ROW_NUMBER":"1448375","CASS_NUM":"57506930","SMP_TAKEN_DT":"4/19/2005","CONC":".513","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-19"},{"SOURCE_ROW_NUMBER":"900090","CASS_NUM":"57507444","SMP_TAKEN_DT":"4/19/2005","CONC":".233","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-19"},{"SOURCE_ROW_NUMBER":"886881","CASS_NUM":"57506902","SMP_TAKEN_DT":"4/19/2005","CONC":".451","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"SCRAPPER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-19"},{"SOURCE_ROW_NUMBER":"334672","CASS_NUM":"57507490","SMP_TAKEN_DT":"4/19/2005","CONC":".369","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-19"},{"SOURCE_ROW_NUMBER":"183725","CASS_NUM":"50736207","SMP_TAKEN_DT":"4/6/2005","CONC":".079","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-04-06"},{"SOURCE_ROW_NUMBER":"94478","CASS_NUM":"50736244","SMP_TAKEN_DT":"2/22/2005","CONC":".107","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"1233152","CASS_NUM":"50736236","SMP_TAKEN_DT":"12/6/2004","CONC":".244","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2004-12-06"}]},{"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":"1980-05-01","lastDate":"1980-05-01","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":35,"firstDate":"2000-01-11","lastDate":"2007-09-17","metrics":{"inspectors":38,"recentRows":0,"onSiteHours":414.75,"inspectionHours":652.25,"inspectionSamples":6},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"362358","EVENT_NO":"4065657","INSPECTION_BEGIN_DT":"09/17/2007","INSPECTION_END_DT":"09/18/2007","ACTIVITY_CODE":"E25","ACTIVITY":"Part 50 Audit","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.5","SUM_TOTAL_ON_SITE_HOURS":"3.25","sourceDate":"2007-09-17"},{"SOURCE_ROW_NUMBER":"83908","EVENT_NO":"4064997","INSPECTION_BEGIN_DT":"03/21/2007","INSPECTION_END_DT":"03/21/2007","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.5","SUM_TOTAL_ON_SITE_HOURS":"5.75","sourceDate":"2007-03-21"},{"SOURCE_ROW_NUMBER":"5568","EVENT_NO":"4065352","INSPECTION_BEGIN_DT":"11/08/2006","INSPECTION_END_DT":"11/27/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"24.5","SUM_TOTAL_ON_SITE_HOURS":"15","sourceDate":"2006-11-08"},{"SOURCE_ROW_NUMBER":"526850","EVENT_NO":"4065122","INSPECTION_BEGIN_DT":"04/04/2006","INSPECTION_END_DT":"04/25/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"21","SUM_TOTAL_ON_SITE_HOURS":"14.5","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"230728","EVENT_NO":"4064775","INSPECTION_BEGIN_DT":"10/31/2005","INSPECTION_END_DT":"11/16/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"39.5","SUM_TOTAL_ON_SITE_HOURS":"15.25","sourceDate":"2005-10-31"},{"SOURCE_ROW_NUMBER":"309013","EVENT_NO":"4064524","INSPECTION_BEGIN_DT":"04/18/2005","INSPECTION_END_DT":"04/27/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"49","SUM_TOTAL_ON_SITE_HOURS":"34.5","sourceDate":"2005-04-18"},{"SOURCE_ROW_NUMBER":"1085004","EVENT_NO":"4064206","INSPECTION_BEGIN_DT":"11/18/2004","INSPECTION_END_DT":"11/24/2004","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"36","SUM_TOTAL_ON_SITE_HOURS":"21","sourceDate":"2004-11-18"},{"SOURCE_ROW_NUMBER":"828954","EVENT_NO":"4069877","INSPECTION_BEGIN_DT":"06/14/2004","INSPECTION_END_DT":"06/14/2004","ACTIVITY_CODE":"BBB","ACTIVITY":"NOISE TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"11.5","sourceDate":"2004-06-14"},{"SOURCE_ROW_NUMBER":"335731","EVENT_NO":"4069874","INSPECTION_BEGIN_DT":"06/01/2004","INSPECTION_END_DT":"06/02/2004","ACTIVITY_CODE":"BBB","ACTIVITY":"NOISE TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"25.75","SUM_TOTAL_ON_SITE_HOURS":"20","sourceDate":"2004-06-01"},{"SOURCE_ROW_NUMBER":"811838","EVENT_NO":"4069873","INSPECTION_BEGIN_DT":"05/24/2004","INSPECTION_END_DT":"05/24/2004","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2004-05-24"},{"SOURCE_ROW_NUMBER":"822858","EVENT_NO":"4077046","INSPECTION_BEGIN_DT":"04/28/2004","INSPECTION_END_DT":"04/28/2004","ACTIVITY_CODE":"CEF","ACTIVITY":"OTHER TECHNICAL INVESTIGATION","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2004-04-28"},{"SOURCE_ROW_NUMBER":"961642","EVENT_NO":"4069626","INSPECTION_BEGIN_DT":"04/19/2004","INSPECTION_END_DT":"04/26/2004","ACTIVITY_CODE":"BBB","ACTIVITY":"NOISE TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13","SUM_TOTAL_ON_SITE_HOURS":"8.5","sourceDate":"2004-04-19"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":78,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2011-Q1":{"hours":141,"employees":2,"production":0},"2010-Q4":{"hours":105,"employees":3,"production":0},"2009-Q3":{"hours":225,"employees":2,"production":0},"2009-Q2":{"hours":285,"employees":3,"production":0},"2009-Q1":{"hours":86,"employees":2,"production":0},"2008-Q4":{"hours":160,"employees":7,"production":0},"2008-Q3":{"hours":458,"employees":10,"production":0},"2008-Q1":{"hours":559,"employees":12,"production":0},"2007-Q4":{"hours":812,"employees":7,"production":0},"2007-Q3":{"hours":1318,"employees":14,"production":0},"2007-Q2":{"hours":4469,"employees":13,"production":0},"2007-Q1":{"hours":953,"employees":18,"production":678}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":18,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002":{"hours":62809,"employees":23,"production":146086},"2003":{"hours":37774,"employees":15,"production":126724},"2004":{"hours":23555,"employees":10,"production":59175},"2005":{"hours":27425,"employees":10,"production":73338},"2006":{"hours":18257,"employees":24,"production":42783},"2007":{"hours":7552,"employees":13,"production":678},"2008":{"hours":1177,"employees":10,"production":0},"2009":{"hours":596,"employees":2,"production":0},"2010":{"hours":105,"employees":3,"production":0},"2011":{"hours":141,"employees":2,"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-noise-samples","name":"Noise Samples","domains":["health","safety","equipment"],"products":["hearing exposure","machine and manufacturer patterns","occupation coverage"],"rowCount":26,"firstDate":"2000-05-09","lastDate":"2006-11-15","metrics":{"recentRows":0,"doseOver100":12,"actDoseTotal":3098,"pelDoseTotal":2380},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"129648","EVENT_NO":"4065352","SURVEY_DATE":"11/15/2006","OCCUPATION_CD_DESC":"BACKHOE OPERATOR","MACHINE_CD":"40","MANUFACTURER_CD":"018","ACT_DOSE_85":"88","PEL_DOSE_90":"52","SURVEY_TYPE":"I","sourceDate":"2006-11-15"},{"SOURCE_ROW_NUMBER":"129647","EVENT_NO":"4065352","SURVEY_DATE":"11/15/2006","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"80","PEL_DOSE_90":"32","SURVEY_TYPE":"I","sourceDate":"2006-11-15"},{"SOURCE_ROW_NUMBER":"129646","EVENT_NO":"4064775","SURVEY_DATE":"11/01/2005","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"018","ACT_DOSE_85":"54","PEL_DOSE_90":"43","SURVEY_TYPE":"I","sourceDate":"2005-11-01"},{"SOURCE_ROW_NUMBER":"129645","EVENT_NO":"4064524","SURVEY_DATE":"05/20/2005","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"075","ACT_DOSE_85":"138","PEL_DOSE_90":"123","SURVEY_TYPE":"I","sourceDate":"2005-05-20"},{"SOURCE_ROW_NUMBER":"129644","EVENT_NO":"4064524","SURVEY_DATE":"05/20/2005","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"122","PEL_DOSE_90":"109","SURVEY_TYPE":"I","sourceDate":"2005-05-20"},{"SOURCE_ROW_NUMBER":"129643","EVENT_NO":"4064524","SURVEY_DATE":"05/20/2005","OCCUPATION_CD_DESC":"ROTARY BUCKET EXCAVATOR OPERATOR","MACHINE_CD":"31","MANUFACTURER_CD":"018","ACT_DOSE_85":"29","PEL_DOSE_90":"8","SURVEY_TYPE":"I","sourceDate":"2005-05-20"},{"SOURCE_ROW_NUMBER":"129666","EVENT_NO":"4069877","SURVEY_DATE":"06/14/2004","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"075","ACT_DOSE_85":"113","PEL_DOSE_90":"83","SURVEY_TYPE":"F","sourceDate":"2004-06-14"},{"SOURCE_ROW_NUMBER":"129665","EVENT_NO":"4069874","SURVEY_DATE":"06/02/2004","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"87","PEL_DOSE_90":"71","SURVEY_TYPE":"F","sourceDate":"2004-06-02"},{"SOURCE_ROW_NUMBER":"129664","EVENT_NO":"4069874","SURVEY_DATE":"06/01/2004","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"92","PEL_DOSE_90":"37","SURVEY_TYPE":"F","sourceDate":"2004-06-01"},{"SOURCE_ROW_NUMBER":"129663","EVENT_NO":"4069626","SURVEY_DATE":"04/19/2004","OCCUPATION_CD_DESC":"SCRAPPER OPERATOR","MACHINE_CD":"33","MANUFACTURER_CD":"105","ACT_DOSE_85":"70","PEL_DOSE_90":"66","SURVEY_TYPE":"I","sourceDate":"2004-04-19"},{"SOURCE_ROW_NUMBER":"129662","EVENT_NO":"4069626","SURVEY_DATE":"04/19/2004","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"195","PEL_DOSE_90":"192","SURVEY_TYPE":"I","sourceDate":"2004-04-19"},{"SOURCE_ROW_NUMBER":"129661","EVENT_NO":"4069436","SURVEY_DATE":"11/17/2003","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"120","PEL_DOSE_90":"70","SURVEY_TYPE":"I","sourceDate":"2003-11-17"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":1,"firstDate":"2003-01-07","lastDate":"2003-01-07","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":24.4,"validSamples":1,"quartzPctTotal":24.4},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"78802","CASSETTE_NO":"57390808","SAMPLE_DT":"01/07/2003","QUARTZ_PCT":"24.4","OCC_CODE_DESC":"BULLDOZER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2003-01-07"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":13,"firstDate":"2001-05-16","lastDate":"2006-04-04","metrics":{"ss":7,"amountDue":1239,"contested":0,"amountPaid":1239,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":1239},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1753898","VIOLATION_NO":"7125759","VIOLATION_ISSUE_DT":"04/04/2006","SIG_SUB":"N","PART_SECTION":"77.403-ad)(2(iiib)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"04/06/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"1753897","VIOLATION_NO":"7125758","VIOLATION_ISSUE_DT":"04/04/2006","SIG_SUB":"N","PART_SECTION":"77.410(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"04/04/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"1753900","VIOLATION_NO":"7123466","VIOLATION_ISSUE_DT":"04/18/2005","SIG_SUB":"N","PART_SECTION":"77.1605(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/27/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-04-18"},{"SOURCE_ROW_NUMBER":"1753899","VIOLATION_NO":"7123465","VIOLATION_ISSUE_DT":"04/18/2005","SIG_SUB":"Y","PART_SECTION":"77.1606(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/19/2005","PROPOSED_PENALTY":"99","AMOUNT_DUE":"99","AMOUNT_PAID":"99","CONTESTED_IND":"N","sourceDate":"2005-04-18"},{"SOURCE_ROW_NUMBER":"1753904","VIOLATION_NO":"7118631","VIOLATION_ISSUE_DT":"04/20/2004","SIG_SUB":"N","PART_SECTION":"71.403(d)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"10","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"05/03/2004","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"1753903","VIOLATION_NO":"7118630","VIOLATION_ISSUE_DT":"04/20/2004","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/01/2004","PROPOSED_PENALTY":"135","AMOUNT_DUE":"135","AMOUNT_PAID":"135","CONTESTED_IND":"N","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"1753902","VIOLATION_NO":"7118629","VIOLATION_ISSUE_DT":"04/20/2004","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/14/2004","PROPOSED_PENALTY":"135","AMOUNT_DUE":"135","AMOUNT_PAID":"135","CONTESTED_IND":"N","sourceDate":"2004-04-20"},{"SOURCE_ROW_NUMBER":"1753901","VIOLATION_NO":"7118628","VIOLATION_ISSUE_DT":"04/19/2004","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/02/2004","PROPOSED_PENALTY":"135","AMOUNT_DUE":"135","AMOUNT_PAID":"135","CONTESTED_IND":"N","sourceDate":"2004-04-19"},{"SOURCE_ROW_NUMBER":"1753909","VIOLATION_NO":"7119776","VIOLATION_ISSUE_DT":"07/15/2003","SIG_SUB":"N","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"NoNegligence","TERMINATION_DT":"08/18/2003","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2003-07-15"},{"SOURCE_ROW_NUMBER":"1753908","VIOLATION_NO":"7119775","VIOLATION_ISSUE_DT":"07/09/2003","SIG_SUB":"N","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"NoNegligence","TERMINATION_DT":"08/18/2003","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2003-07-09"},{"SOURCE_ROW_NUMBER":"1753907","VIOLATION_NO":"7133159","VIOLATION_ISSUE_DT":"06/03/2002","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/11/2002","PROPOSED_PENALTY":"131","AMOUNT_DUE":"131","AMOUNT_PAID":"131","CONTESTED_IND":"N","sourceDate":"2002-06-03"},{"SOURCE_ROW_NUMBER":"1753906","VIOLATION_NO":"7133158","VIOLATION_ISSUE_DT":"05/23/2002","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/23/2002","PROPOSED_PENALTY":"131","AMOUNT_DUE":"131","AMOUNT_PAID":"131","CONTESTED_IND":"N","sourceDate":"2002-05-23"}]}],"safety":{"href":"/api/v1/mines/3303816/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3303816/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":"Mobile equipment; falling object protective structures (FOPS).","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.403","part":"77","subchapter":"O","subpart":"E","id":"77.403","citation":"30 CFR 77.403","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.410","heading":"Mobile equipment; automatic warning devices.","id":"77.410","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Safeguards for Mechanical Equipment","text":"(a) Mobile equipment such as front-end loaders, forklifts, tractors, graders, and trucks, except pickup trucks with an unobstructed rear view, shall be equipped with a warning device that—\n\n(1) Gives an audible alarm when the equipment is put in reverse; or\n\n(2) Uses infrared light, ultrasonic waves, radar, or other effective devices to detect objects or persons at the rear of the equipment, and sounds an audible alarm when a person or object is detected. This type of discriminating warning device shall—\n\n(i) Have a sensing area of a sufficient size that would allow endangered persons adequate time to get out of the danger zone.\n\n(ii) Give audible and visual alarms inside the operator's compartment and an audible alarm outside of the operator's compartment when a person or object is detected in the sensing area; and\n\n(iii) When the equipment is put in reverse, activate and give a one-time audible and visual alarm inside the operator's compartment and a one-time audible alarm outside the operator's compartment.\n\n(b) Alarms shall be audible above the surrounding noise levels.\n\n(c) Warning devices shall be maintained in functional condition.\n\n(d) An automatic reverse-activated strobe light may be substituted for an audible alarm when mobile equipment is operated at night.\n\n[54 FR 30517, July 20, 1989]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1605","heading":"Loading and haulage equipment; installations.","id":"77.1605","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Cab windows shall be of safety glass or equivalent, in good condition and shall be kept clean.\n\n(b) Mobile equipment shall be equipped with adequate brakes, and all trucks and front-end loaders shall also be equipped with parking brakes.\n\n(c) Positive-action type brakes shall be provided on aerial tramways.\n\n(d) Mobile equipment shall be provided with audible warning devices. Lights shall be provided on both ends when required.\n\n(e) Guard nets or other suitable protection shall be provided where tramways pass over roadways, walkways, or buildings.\n\n(f) Guards shall be installed to prevent swaying buckets from hitting towers.\n\n(g) Aerial tramway cable connections shall be designed to offer minimum obstruction to the passage of wheels.\n\n(h) Rocker-bottom or bottom-dump cars shall be equipped with positive locking devices, or other suitable devices.\n\n(i) Ramps and dumps shall be of solid construction, of ample width, have ample clearance and headroom, and be kept reasonably free of spillage.\n\n(j) Chute-loading installations shall be designed so that the men pulling chutes are not required to be in a hazardous position during loading operations.\n\n(k) Berms or guards shall be provided on the outer bank of elevated roadways.\n\n(l) Berms, bumper blocks, safety hooks, or similar means shall be provided to prevent overtravel and overturning at dumping locations.\n\n(m) Roadbeds, rails, joints, switches, frogs, and other elements on railroads shall be designed, installed, and maintained in a safe manner consistent with the speed and type of haulage.\n\n(n) Where practicable, a minimum of 30 inches continuous clearance from the farthest projection of moving railroad equipment shall be provided on at least one side of the tracks; all places where it is not possible to provide 30-inch clearance shall be marked conspicuously.\n\n(o) Track guardrails, lead rails, and frogs shall be protected or blocked so as to prevent a person's foot from becoming wedged.\n\n(p) Positive-acting stop-blocks, derail devices, track skates, or other adequate means shall be installed wherever necessary to protect persons from runaway or moving railroad equipment.\n\n(q) Switch throws shall be installed so as to provide adequate clearance for switchmen.\n\n(r) Where necessary, bumper blocks or the equivalent shall be provided at all track dead ends.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1606","heading":"Loading and haulage equipment; inspection and maintenance.","id":"77.1606","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Mobile loading and haulage equipment shall be inspected by a competent person before such equipment is placed in operation. Equipment defects affecting safety shall be recorded and reported to the mine operator.\n\n(b) Carriers on aerial tramways, including loading and unloading mechanisms, shall be inspected each shift; brakes shall be inspected daily; ropes and supports shall be inspected as recommended by the manufacturer or as physical conditions warrant. Equipment defects affecting safety shall be reported to the mine operator.\n\n(c) Equipment defects affecting safety shall be corrected before the equipment is used.","occurrenceCount":1},{"chapter":"I","heading":"Waiver of surface facilities requirements; posting of waiver.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.403","part":"71","subchapter":"O","subpart":"E","id":"71.403","citation":"30 CFR 71.403","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 71—MANDATORY HEALTH STANDARDS—SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL 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":7}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"3303816","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}