{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4406921","name":"Whitley Fork Surface Mine","status":"Abandoned","status_date":"2002-06-07","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"VA","county":"Wise","nearest_town":"Pardee","operator_id":"P23653","operator_name":"Mill Branch Coal Corp","controller_id":"0041211","controller_name":"Alpha Natural Resources, Inc.","district":"C05","office":"Norton VA Field Office","employees":0,"latitude":37.000278,"longitude":-82.757222},"coverage":{"contributingSources":14,"registeredSources":20,"sourceRows":336},"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":"4406921","name":"Whitley Fork Surface Mine"},"operator":{"type":"operator","id":"P23653","name":"Mill Branch Coal Corp"},"controller":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07082","name":"Cumberland Resources Corporation"},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"1996-12-01","validTo":"2010-04-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|C07082|1996-12-01|2010-04-18"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23995","name":"Tri-State Leasing Corp"},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"1998-07-01","validTo":"2012-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23995|1998-07-01|2012-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07719","name":"Steven R  Mullins"},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"1998-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|C07719|1998-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07719","name":"Steven R  Mullins"},"object":{"type":"operator","id":"P23995","name":"Tri-State Leasing Corp"},"validFrom":"1998-07-01","validTo":"2012-12-31","current":false,"derived":true,"evidenceMineId":"4406921","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23995|1998-07-01|C07719|1998-07-01|75507"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"2010-04-19","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|C02508|2010-04-19|2011-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"2011-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|0041211|2011-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23653","name":"Mill Branch Coal Corp"},"object":{"type":"mine","id":"4406921","name":"Whitley Fork Surface Mine"},"validFrom":"2013-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23653|2013-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P23653","name":"Mill Branch Coal Corp"},"validFrom":"2013-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406921","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23653|2013-01-01|0041211|2011-06-01|2297"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P23653","name":"Mill Branch Coal Corp"},"validFrom":"2013-01-01","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4406921","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23653|2013-01-01|C02508|2010-04-19|59596"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07082","name":"Cumberland Resources Corporation"},"object":{"type":"operator","id":"P23653","name":"Mill Branch Coal Corp"},"validFrom":"2013-01-01","validTo":"2010-04-18","current":false,"derived":true,"evidenceMineId":"4406921","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406921|P23653|2013-01-01|C07082|1996-12-01|73709"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":2,"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":10,"firstDate":"2000-01-18","lastDate":"2001-11-02","metrics":{"daysLost":125,"injuries":10,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":1},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"244224","DOCUMENT_NO":"220013170097","ACCIDENT_DT":"11/02/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Miner, NEC","NO_INJURIES":"1","DAYS_LOST":"2","NARRATIVE":"STEAM CLEANING A PICKUP TRUCK, HIS CLEANING HOSE HAD GOT DOWN INT HE MUD AROUND THE TRUCK, HE JERKED THE HOSE TO GET IT OUT OF THE MUD, CAUSING A CRICK IN HIS NECK.","sourceDate":"2001-11-02"},{"SOURCE_ROW_NUMBER":"59135","DOCUMENT_NO":"220011130098","ACCIDENT_DT":"04/13/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Truck driver","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"WHILE HE WAS TRYING TO MOVE A ROCK FROM UNDER HIS HAULER HE GOT HIS FOOT IN A STRAIN AND SPRAINED A MUSCLE.","sourceDate":"2001-04-13"},{"SOURCE_ROW_NUMBER":"265728","DOCUMENT_NO":"220011060135","ACCIDENT_DT":"04/05/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Greaser, Grease man, Oiler, Lube man, Dragline oiler","NO_INJURIES":"1","DAYS_LOST":"2","NARRATIVE":"HE WAS SERVICING A 992G AND WAS GIVING TO DRAIN THE ENGINE OIL. WHEN HE TRIED TO LOOSEN THE PLUG THE RATCHET SLIPPED AND HIT HIM IN THE MOUTH ADN BROKE HIS TOOTH.","sourceDate":"2001-04-05"},{"SOURCE_ROW_NUMBER":"205480","DOCUMENT_NO":"220010920021","ACCIDENT_DT":"03/22/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","DAYS_LOST":"6","NARRATIVE":"EE WAS EXITING HIS LOADER AT THE END OF THE SHIFT WHEN HIS KNEE GAVE AWAY","sourceDate":"2001-03-22"},{"SOURCE_ROW_NUMBER":"261547","DOCUMENT_NO":"220020030019","ACCIDENT_DT":"02/28/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"13","NARRATIVE":"WHILE UNLOADING PALLETS EE TWISTED AROUND TO THROW ONE OFF THE TRUCK AND TWISTED HIS ANKLE.","sourceDate":"2001-02-28"},{"SOURCE_ROW_NUMBER":"265727","DOCUMENT_NO":"220003570003","ACCIDENT_DT":"12/08/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"MACHINERY","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Auger operator, Auger Crew supervisor","NO_INJURIES":"1","DAYS_LOST":"45","NARRATIVE":"A ROCK FELL OFF THE HIGHWALL AND STRUCK EE'S RIGHT ARM.","sourceDate":"2000-12-08"},{"SOURCE_ROW_NUMBER":"110640","DOCUMENT_NO":"220003110043","ACCIDENT_DT":"10/25/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall from machine","OCCUPATION":"Coal/ore shovel operator,  Shoveler,  Power shoveler","NO_INJURIES":"1","DAYS_LOST":"35","NARRATIVE":"HE WAS GETTING ON THE EXCAVATOR WHEN HIS RIGHT KNEE GAVE OUT ON HIM AND CAUSED HIM TO FALL.","sourceDate":"2000-10-25"},{"SOURCE_ROW_NUMBER":"183997","DOCUMENT_NO":"220002840081","ACCIDENT_DT":"10/02/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall from machine","OCCUPATION":"Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer","NO_INJURIES":"1","DAYS_LOST":"21","NARRATIVE":"OPERATOR WAS EXITING MACHINE, DESCENDING FRONT LADDER WHEN HE SLIPPED. THIS RESULTED IN A FALL OF APPROX 8' TO THE GROUND, WHERE HE LANDED ON HIS BACK, ARM AND HIP. FOREMAN TRANSPORTED OPERATO R TO NORTON COMMUNITY HOSPITAL WHERE DR EXAMINED AND RELEASED HIM. AN APPOINTMENT WITH OCCUMED WAS SCHEDULED 10/3/00.","sourceDate":"2000-10-02"},{"SOURCE_ROW_NUMBER":"231303","DOCUMENT_NO":"220002690076","ACCIDENT_DT":"09/19/2000","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Blaster, Shooter, Shotfirer, Explosive worker, Powder gang/monkey","NO_INJURIES":"1","NARRATIVE":"EE WAS TRIMMING A CONE TO BE USED IN A DRILL HOLE. HE WAS HOLDING THE CONE BETWEEN HIS LEGS, WHEN HIS HAND SLIPPED & THE KNIFE CUT HIS THIGH","sourceDate":"2000-09-19"},{"SOURCE_ROW_NUMBER":"115003","DOCUMENT_NO":"220000260039","ACCIDENT_DT":"01/18/2000","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Caught in, under or between NEC","OCCUPATION":"Transit man, Surveyor/Transit worker","NO_INJURIES":"1","NARRATIVE":"PINCHED LITTLE FINGER ON RIGHT HAND IN LEGS OF SURVEYING INSTRUMENT. CAUSED DEEP LACERATION REQUIRING 8 STITCHES TO CLOSE THE WOUND. ACCIDENT OCCURRED WHILE TRYING TO SET UP SURVEYING TRIPOD.","sourceDate":"2000-01-18"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2002-06-07","lastDate":"2002-06-07","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":5,"firstDate":"2000-01-19","lastDate":"2001-06-26","metrics":{"ss":2,"delinquent":5,"recentRows":0,"paidPenalty":483,"proposedPenalty":483,"currentAssessment":483},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"894753","VIOLATION_NO":"7320277","ISSUE_DT":"06/26/2001","CFR_STANDARD_CD":"77.1606(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-06-26"},{"SOURCE_ROW_NUMBER":"894752","VIOLATION_NO":"7320276","ISSUE_DT":"06/25/2001","CFR_STANDARD_CD":"77.1605(k)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-06-25"},{"SOURCE_ROW_NUMBER":"893973","VIOLATION_NO":"7308085","ISSUE_DT":"06/17/2000","CFR_STANDARD_CD":"77.1606(c)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"122.00","CURRENT_ASSESSMENT_AMT":"122.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-06-17"},{"SOURCE_ROW_NUMBER":"893972","VIOLATION_NO":"7308084","ISSUE_DT":"06/17/2000","CFR_STANDARD_CD":"72.620","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"196.00","CURRENT_ASSESSMENT_AMT":"196.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-06-17"},{"SOURCE_ROW_NUMBER":"893893","VIOLATION_NO":"7307532","ISSUE_DT":"01/19/2000","CFR_STANDARD_CD":"71.400","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-01-19"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":16,"firstDate":"2000-01-19","lastDate":"2001-06-26","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":1,"validSamples":15,"maxConcentration":0.648,"concentrationTotal":2.421},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"852994","CASS_NUM":"57360674","SMP_TAKEN_DT":"6/26/2001","CONC":".081","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":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2001-06-26"},{"SOURCE_ROW_NUMBER":"154597","CASS_NUM":"57360711","SMP_TAKEN_DT":"6/26/2001","CONC":"0","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"INSUFFICIENT DUST OBSERVED","OCC_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2001-06-26"},{"SOURCE_ROW_NUMBER":"121460","CASS_NUM":"57361486","SMP_TAKEN_DT":"6/26/2001","CONC":".086","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":"2001-06-26"},{"SOURCE_ROW_NUMBER":"1361391","CASS_NUM":"57322482","SMP_TAKEN_DT":"2/7/2001","CONC":".114","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":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2001-02-07"},{"SOURCE_ROW_NUMBER":"1111812","CASS_NUM":"57322512","SMP_TAKEN_DT":"2/7/2001","CONC":".019","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":"2001-02-07"},{"SOURCE_ROW_NUMBER":"1093687","CASS_NUM":"57322470","SMP_TAKEN_DT":"2/7/2001","CONC":".045","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":"2001-02-07"},{"SOURCE_ROW_NUMBER":"283554","CASS_NUM":"57522586","SMP_TAKEN_DT":"2/7/2001","CONC":".326","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":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2001-02-07"},{"SOURCE_ROW_NUMBER":"170567","CASS_NUM":"57322492","SMP_TAKEN_DT":"2/7/2001","CONC":".28","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":"BLASTER/SHOOTER/SHOTFIRER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2001-02-07"},{"SOURCE_ROW_NUMBER":"1046781","CASS_NUM":"57282473","SMP_TAKEN_DT":"6/19/2000","CONC":".141","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":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2000-06-19"},{"SOURCE_ROW_NUMBER":"713864","CASS_NUM":"57282651","SMP_TAKEN_DT":"6/19/2000","CONC":".092","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":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2000-06-19"},{"SOURCE_ROW_NUMBER":"463892","CASS_NUM":"57282674","SMP_TAKEN_DT":"6/19/2000","CONC":".058","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":"2000-06-19"},{"SOURCE_ROW_NUMBER":"139444","CASS_NUM":"57282699","SMP_TAKEN_DT":"6/19/2000","CONC":".092","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":"2000-06-19"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":207,"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":48,"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":4,"firstDate":"1998-07-01","lastDate":"2013-01-01","metrics":{"recentRows":0,"currentOperatorTenures":3,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":15,"firstDate":"2000-01-18","lastDate":"2002-04-22","metrics":{"inspectors":17,"recentRows":0,"onSiteHours":197.25,"inspectionHours":272.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1111474","EVENT_NO":"4138058","INSPECTION_BEGIN_DT":"04/22/2002","INSPECTION_END_DT":"04/22/2002","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2002-04-22"},{"SOURCE_ROW_NUMBER":"1035233","EVENT_NO":"4138038","INSPECTION_BEGIN_DT":"01/15/2002","INSPECTION_END_DT":"01/28/2002","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.5","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2002-01-15"},{"SOURCE_ROW_NUMBER":"229082","EVENT_NO":"4138025","INSPECTION_BEGIN_DT":"11/19/2001","INSPECTION_END_DT":"12/28/2001","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"21","SUM_TOTAL_ON_SITE_HOURS":"13.5","sourceDate":"2001-11-19"},{"SOURCE_ROW_NUMBER":"642678","EVENT_NO":"4140644","INSPECTION_BEGIN_DT":"06/27/2001","INSPECTION_END_DT":"07/30/2001","ACTIVITY_CODE":"BBB","ACTIVITY":"NOISE TECHNICAL INVESTIGATION","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"17.5","SUM_TOTAL_ON_SITE_HOURS":"14.25","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"962175","EVENT_NO":"4140111","INSPECTION_BEGIN_DT":"06/26/2001","INSPECTION_END_DT":"07/17/2001","ACTIVITY_CODE":"BAF","ACTIVITY":"RESP DUST TECH INSP - SURFACE MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2001-06-26"},{"SOURCE_ROW_NUMBER":"915155","EVENT_NO":"4140110","INSPECTION_BEGIN_DT":"06/25/2001","INSPECTION_END_DT":"07/17/2001","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"55.5","SUM_TOTAL_ON_SITE_HOURS":"43.25","sourceDate":"2001-06-25"},{"SOURCE_ROW_NUMBER":"513676","EVENT_NO":"4140621","INSPECTION_BEGIN_DT":"04/11/2001","INSPECTION_END_DT":"04/30/2001","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.5","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2001-04-11"},{"SOURCE_ROW_NUMBER":"504000","EVENT_NO":"4137277","INSPECTION_BEGIN_DT":"02/07/2001","INSPECTION_END_DT":"02/20/2001","ACTIVITY_CODE":"BAF","ACTIVITY":"RESP DUST TECH INSP - SURFACE MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2001-02-07"},{"SOURCE_ROW_NUMBER":"392783","EVENT_NO":"4137275","INSPECTION_BEGIN_DT":"01/30/2001","INSPECTION_END_DT":"02/20/2001","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"33","SUM_TOTAL_ON_SITE_HOURS":"24.5","sourceDate":"2001-01-30"},{"SOURCE_ROW_NUMBER":"445883","EVENT_NO":"4124387","INSPECTION_BEGIN_DT":"12/21/2000","INSPECTION_END_DT":"12/22/2000","ACTIVITY_CODE":"CED","ACTIVITY":"RESP DUST TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1.25","sourceDate":"2000-12-21"},{"SOURCE_ROW_NUMBER":"921435","EVENT_NO":"4139499","INSPECTION_BEGIN_DT":"06/19/2000","INSPECTION_END_DT":"06/29/2000","ACTIVITY_CODE":"BAF","ACTIVITY":"RESP DUST TECH INSP - SURFACE MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2000-06-19"},{"SOURCE_ROW_NUMBER":"656455","EVENT_NO":"4139498","INSPECTION_BEGIN_DT":"06/15/2000","INSPECTION_END_DT":"06/29/2000","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"35.5","SUM_TOTAL_ON_SITE_HOURS":"26","sourceDate":"2000-06-15"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":10,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002-Q2":{"hours":212,"employees":3,"production":0},"2002-Q1":{"hours":2715,"employees":6,"production":0},"2001-Q4":{"hours":15005,"employees":22,"production":45670},"2001-Q3":{"hours":18448,"employees":30,"production":66260},"2001-Q2":{"hours":24897,"employees":35,"production":95943},"2001-Q1":{"hours":27587,"employees":47,"production":109843},"2000-Q4":{"hours":34215,"employees":50,"production":132565},"2000-Q3":{"hours":30101,"employees":54,"production":162305},"2000-Q2":{"hours":37460,"employees":54,"production":130045},"2000-Q1":{"hours":32805,"employees":54,"production":154204}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":3,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":134581,"employees":53,"production":579119},"2001":{"hours":85937,"employees":34,"production":317716},"2002":{"hours":2927,"employees":5,"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":9,"firstDate":"2000-05-17","lastDate":"2001-06-27","metrics":{"recentRows":0,"doseOver100":0,"actDoseTotal":311,"pelDoseTotal":127},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"203458","EVENT_NO":"4140644","SURVEY_DATE":"06/27/2001","OCCUPATION_CD_DESC":"HIGHWALL DRILL OPERATOR","MACHINE_CD":"21","MANUFACTURER_CD":"053","ACT_DOSE_85":"15","PEL_DOSE_90":"6","SURVEY_TYPE":"I","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"203457","EVENT_NO":"4140644","SURVEY_DATE":"06/27/2001","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"018","ACT_DOSE_85":"8","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"203456","EVENT_NO":"4140644","SURVEY_DATE":"06/27/2001","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"71","PEL_DOSE_90":"33","SURVEY_TYPE":"I","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"203455","EVENT_NO":"4140644","SURVEY_DATE":"06/27/2001","OCCUPATION_CD_DESC":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","MACHINE_CD":"39","MANUFACTURER_CD":"018","ACT_DOSE_85":"10","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"203454","EVENT_NO":"4140644","SURVEY_DATE":"06/27/2001","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"018","ACT_DOSE_85":"9","PEL_DOSE_90":"2","SURVEY_TYPE":"I","sourceDate":"2001-06-27"},{"SOURCE_ROW_NUMBER":"203453","EVENT_NO":"4139493","SURVEY_DATE":"05/17/2000","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"018","ACT_DOSE_85":"25","PEL_DOSE_90":"3","SURVEY_TYPE":"I","sourceDate":"2000-05-17"},{"SOURCE_ROW_NUMBER":"203452","EVENT_NO":"4139493","SURVEY_DATE":"05/17/2000","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","MANUFACTURER_CD":"018","ACT_DOSE_85":"64","PEL_DOSE_90":"26","SURVEY_TYPE":"I","sourceDate":"2000-05-17"},{"SOURCE_ROW_NUMBER":"203451","EVENT_NO":"4139493","SURVEY_DATE":"05/17/2000","OCCUPATION_CD_DESC":"HIGHWALL DRILL OPERATOR","MACHINE_CD":"21","MANUFACTURER_CD":"053","ACT_DOSE_85":"80","PEL_DOSE_90":"52","SURVEY_TYPE":"I","sourceDate":"2000-05-17"},{"SOURCE_ROW_NUMBER":"203450","EVENT_NO":"4139493","SURVEY_DATE":"05/17/2000","OCCUPATION_CD_DESC":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","MACHINE_CD":"39","MANUFACTURER_CD":"018","ACT_DOSE_85":"29","PEL_DOSE_90":"4","SURVEY_TYPE":"I","sourceDate":"2000-05-17"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":2,"firstDate":"2000-01-19","lastDate":"2001-02-07","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":23.3,"validSamples":2,"quartzPctTotal":39.5},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"161900","CASSETTE_NO":"57522586","SAMPLE_DT":"02/07/2001","QUARTZ_PCT":"23.3","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2001-02-07"},{"SOURCE_ROW_NUMBER":"143004","CASSETTE_NO":"57204090","SAMPLE_DT":"01/19/2000","QUARTZ_PCT":"16.2","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2000-01-19"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":5,"firstDate":"2000-01-19","lastDate":"2001-06-26","metrics":{"ss":2,"amountDue":483,"contested":0,"amountPaid":483,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":483},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2382527","VIOLATION_NO":"7320277","VIOLATION_ISSUE_DT":"06/26/2001","SIG_SUB":"N","PART_SECTION":"77.1606(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/26/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-06-26"},{"SOURCE_ROW_NUMBER":"2382526","VIOLATION_NO":"7320276","VIOLATION_ISSUE_DT":"06/25/2001","SIG_SUB":"N","PART_SECTION":"77.1605(k)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/25/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-06-25"},{"SOURCE_ROW_NUMBER":"2382525","VIOLATION_NO":"7308085","VIOLATION_ISSUE_DT":"06/17/2000","SIG_SUB":"Y","PART_SECTION":"77.1606(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/17/2000","PROPOSED_PENALTY":"122","AMOUNT_DUE":"122","AMOUNT_PAID":"122","CONTESTED_IND":"N","sourceDate":"2000-06-17"},{"SOURCE_ROW_NUMBER":"2382524","VIOLATION_NO":"7308084","VIOLATION_ISSUE_DT":"06/17/2000","SIG_SUB":"Y","PART_SECTION":"72.620","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"3","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/19/2000","PROPOSED_PENALTY":"196","AMOUNT_DUE":"196","AMOUNT_PAID":"196","CONTESTED_IND":"N","sourceDate":"2000-06-17"},{"SOURCE_ROW_NUMBER":"2382523","VIOLATION_NO":"7307532","VIOLATION_ISSUE_DT":"01/19/2000","SIG_SUB":"N","PART_SECTION":"71.400","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"49","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"01/19/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-01-19"}]}],"safety":{"href":"/api/v1/mines/4406921/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4406921/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","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":2},{"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","heading":"Drill dust control at surface mines and surface areas of underground mines.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.620","part":"72","subchapter":"O","subpart":"E","id":"72.620","citation":"30 CFR 72.620","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 72—HEALTH STANDARDS FOR COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Bathing facilities; change rooms; sanitary flush toilet facilities.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-E/section-71.400","part":"71","subchapter":"O","subpart":"E","id":"71.400","citation":"30 CFR 71.400","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4406921","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}