{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0504864","name":"King II","status":"Active","status_date":"2007-07-24","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"CO","county":"La Plata","nearest_town":"Hesperus","operator_id":"0059743","operator_name":"GCC Energy LLC","controller_id":"M10343","controller_name":"GCC SAB de CV","district":"C09","office":"Farmington NM Field Office","employees":48,"latitude":37.251111,"longitude":-108.098056},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":17324},"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":"0504864","name":"King II"},"operator":{"type":"operator","id":"0059743","name":"GCC Energy LLC"},"controller":{"type":"controller","id":"M10343","name":"GCC SAB de CV"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10343","name":"GCC SAB de CV"},"object":{"type":"mine","id":"0504864","name":"King II"},"validFrom":"2005-04-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504864|M10343|2005-04-14|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0059743","name":"GCC Energy LLC"},"object":{"type":"mine","id":"0504864","name":"King II"},"validFrom":"2007-02-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504864|0059743|2007-02-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10343","name":"GCC SAB de CV"},"object":{"type":"operator","id":"0059743","name":"GCC Energy LLC"},"validFrom":"2007-02-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504864|0059743|2007-02-27|M10343|2005-04-14|149047"}}],"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":84,"firstDate":"2007-07-27","lastDate":"2026-02-20","metrics":{"daysLost":747,"injuries":59,"fatalities":0,"recentRows":14,"restrictedDays":341,"contractorRecords":13},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"86606","DOCUMENT_NO":"220260910028","ACCIDENT_DT":"02/20/2026","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall down stairs","OCCUPATION":"Utility man, Shift tech, Service/Dump truck operator","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"After shift ended, employee left the main building to the parking lot where there is one set of stairs before reaching the lower level. It had snowed about 6\"-8\" the evening of their shift. Employee slipped on the second to last stair landing on their back. On their way home employee felt a sharp strong pain in their mid-back when moving.","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"245823","DOCUMENT_NO":"220251780013","ACCIDENT_DT":"06/19/2025","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"2 NSM XC4, 7 Entry. A roof fall occurred and was found by a weekly mine examiner. Approx. 27 feet long x 17' wide. The fall was above the 7' bolt anchorage zone.","sourceDate":"2025-06-19"},{"SOURCE_ROW_NUMBER":"241568","DOCUMENT_NO":"220250140009","ACCIDENT_DT":"01/13/2025","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by flying object","OCCUPATION":"Electrician, Lineman","NO_INJURIES":"1","NARRATIVE":"Employee lifted a new cutting blade into place on the continuous miner gathering head to weld. A floor jack was used to pressure it into place. The jack extension was side loaded not center loaded causing it to break free, flying out and hitting the employee above the right eye. The extension cut through the right eyebrow onto the eye lid. It required 6 stitches to close it up.","sourceDate":"2025-01-13"},{"SOURCE_ROW_NUMBER":"78037","DOCUMENT_NO":"220241280013","ACCIDENT_DT":"05/01/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"5 NM XC 38, Entry 6 to entry 7 a roof fall occurred, was found by a weekly mine examiner. Approx. 26 feet long X 18' wide to the level of the 7' bolt anchorage zone, contained in the Crosscut crushing an intake to return stopping.","sourceDate":"2024-05-01"},{"SOURCE_ROW_NUMBER":"237234","DOCUMENT_NO":"220233200012","ACCIDENT_DT":"11/07/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"ELECTRICAL","ACCIDENT_TYPE":"Contact with electrical current","OCCUPATION":"Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"Fusing HDPE pipe in Beltline, damp rockdust on floor, employee was sweating. Advancing fuser inby, Hand dragging extension cord. Employee stated employee felt a shock in Arm and Upper body. Happened on Tuesday Reported on Thursday.","sourceDate":"2023-11-07"},{"SOURCE_ROW_NUMBER":"241567","DOCUMENT_NO":"220232440022","ACCIDENT_DT":"08/30/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Beltman, Conveyor man,  Conveyor belt worker, Mobile bridge carrierman, Feeder operator, Conveyor rider","NO_INJURIES":"1","DAYS_LOST":"2","NARRATIVE":"While pulling pieces of conveyor belting by hand 10'- 13' long, a back strain occurred. Doctor's diagnoses: Acute thoracic back pain.","sourceDate":"2023-08-30"},{"SOURCE_ROW_NUMBER":"60727","DOCUMENT_NO":"220231350012","ACCIDENT_DT":"05/05/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck by powered moving object","OCCUPATION":"Utility man, Errand boy, Service truck operator","NO_INJURIES":"1","DAYS_LOST":"20","NARRATIVE":"A shuttle car operator got stuck. A battery scoop operator pulled it out, the car rolled back down, they started the car and backed up to give chain slack. They bumped the scoop operator with the car on the upper shins. The Maintenance manager took them to the doctor. the X Rays taken revealed that there was a small hairline fracture in the upper right shin.","sourceDate":"2023-05-05"},{"SOURCE_ROW_NUMBER":"198320","DOCUMENT_NO":"220230750008","ACCIDENT_DT":"03/07/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Utility man, Errand boy, Service truck operator","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"Employee was walking around the corner, rolled their ankle on a chunk of coal.","sourceDate":"2023-03-07"},{"SOURCE_ROW_NUMBER":"129372","DOCUMENT_NO":"220230600021","ACCIDENT_DT":"02/22/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"6","NARRATIVE":"THERE HAD BEEN A SNOW STORM THROUGH THE NIGHT SO A LOADER HAD PUSHED THE TRAVEL WAYS OF THE SURFACE WORK AREAS. EMPLOYEE WAS WALKING TO THE ROCK PICKING PLATFORM AND STEPPED ON AN ICY SLICK AREA. EE STATES TWISTED LEFT ANKLE RESULTING IN A SPRAIN INJURY.","sourceDate":"2023-02-22"},{"SOURCE_ROW_NUMBER":"172618","DOCUMENT_NO":"220230530006","ACCIDENT_DT":"02/14/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Fall to the walkway or working surface","OCCUPATION":"Laborer, Bull gang, Faceman, Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"66","NARRATIVE":"PULLING VENTILATION TUBES TO THE FACE AND TRIPPED ON UNEVEN FLOOR CONDITIONS STRIKING RIGHT KNEE ON A PIECE OF COAL CAUSING A BRUISE AND PAIN\\TENDERNESS","sourceDate":"2023-02-14"},{"SOURCE_ROW_NUMBER":"99329","DOCUMENT_NO":"220230480015","ACCIDENT_DT":"02/12/2023","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"EMPLOYEE WAS ASSISTING OTHER CREW MEMBERS PULLING UP 2/0 CONTINUOUS MINER CABLE SLACK, NEXT TO THE POWER CENTER. EMPLOYEE FELT A BURNING SENSATION IN RIGHT CALF, LEG MUSCLE. SPRAINED MUSCLE","sourceDate":"2023-02-12"},{"SOURCE_ROW_NUMBER":"159763","DOCUMENT_NO":"220222240017","ACCIDENT_DT":"08/01/2022","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"OTHER","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Laborer, Bull gang, Faceman, Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"Got a small piece of coal in eye","sourceDate":"2022-08-01"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2007-07-24","lastDate":"2007-07-24","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":1635,"firstDate":"2007-09-18","lastDate":"2026-08-18","metrics":{"ss":222,"delinquent":1562,"recentRows":604,"paidPenalty":808203.65,"proposedPenalty":1048925,"currentAssessment":815449},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2932949","VIOLATION_NO":"9735062","ISSUE_DT":"08/18/2026","CFR_STANDARD_CD":"75.333(h)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"209.00","CURRENT_ASSESSMENT_AMT":"209.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-08-18"},{"SOURCE_ROW_NUMBER":"2932948","VIOLATION_NO":"9735061","ISSUE_DT":"08/17/2026","CFR_STANDARD_CD":"75.370(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-08-17"},{"SOURCE_ROW_NUMBER":"2932947","VIOLATION_NO":"9735060","ISSUE_DT":"08/13/2026","CFR_STANDARD_CD":"75.512","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-08-13"},{"SOURCE_ROW_NUMBER":"2932946","VIOLATION_NO":"9735059","ISSUE_DT":"08/12/2026","CFR_STANDARD_CD":"75.333(h)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Printed","sourceDate":"2026-08-12"},{"SOURCE_ROW_NUMBER":"2998709","VIOLATION_NO":"5037360","ISSUE_DT":"06/09/2026","CFR_STANDARD_CD":"49.16(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":"2026-06-09"},{"SOURCE_ROW_NUMBER":"2998708","VIOLATION_NO":"5037359","ISSUE_DT":"06/03/2026","CFR_STANDARD_CD":"77.410(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"2998707","VIOLATION_NO":"5037354","ISSUE_DT":"05/28/2026","CFR_STANDARD_CD":"75.1725(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-05-28"},{"SOURCE_ROW_NUMBER":"2998706","VIOLATION_NO":"5037353","ISSUE_DT":"05/21/2026","CFR_STANDARD_CD":"75.1916(e)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-05-21"},{"SOURCE_ROW_NUMBER":"2998705","VIOLATION_NO":"5037352","ISSUE_DT":"05/19/2026","CFR_STANDARD_CD":"75.1107-9(a)(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":"2026-05-19"},{"SOURCE_ROW_NUMBER":"2998704","VIOLATION_NO":"5037351","ISSUE_DT":"05/05/2026","CFR_STANDARD_CD":"75.1505(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":"2026-05-05"},{"SOURCE_ROW_NUMBER":"2998703","VIOLATION_NO":"5037350","ISSUE_DT":"04/27/2026","CFR_STANDARD_CD":"75.1731(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"193.00","CURRENT_ASSESSMENT_AMT":"193.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-04-27"},{"SOURCE_ROW_NUMBER":"2998702","VIOLATION_NO":"5037349","ISSUE_DT":"04/27/2026","CFR_STANDARD_CD":"75.333(b)(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":"2026-04-27"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":461,"firstDate":"2009-10-27","lastDate":"2025-12-17","metrics":{"appeals":0,"decisions":458,"recentRows":42,"decisionPenalty":518803,"originalPenalty":771671},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"458381","VIOLATION_NO":"9734813","DOCKET_NO":"WEST 2025-0325","DECISION_DT":"12/17/2025","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"959.00","DECISION_PENALTY_AMT":"959.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2025-12-17"},{"SOURCE_ROW_NUMBER":"457614","VIOLATION_NO":"9734711","DOCKET_NO":"WEST 2025-0236","DECISION_DT":"11/12/2025","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"959.00","DECISION_PENALTY_AMT":"959.00","JUDGE_FIRST_NAME":"Glynn","JUDGE_LAST_NAME":"Voisin","sourceDate":"2025-11-12"},{"SOURCE_ROW_NUMBER":"165344","VIOLATION_NO":"9734622","DOCKET_NO":"WEST 2025-0236","DECISION_DT":"11/12/2025","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"2503.00","DECISION_PENALTY_AMT":"2503.00","JUDGE_FIRST_NAME":"Glynn","JUDGE_LAST_NAME":"Voisin","sourceDate":"2025-11-12"},{"SOURCE_ROW_NUMBER":"455510","VIOLATION_NO":"9734617","DOCKET_NO":"WEST 2025-0186","DECISION_DT":"06/03/2025","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"1431.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Jacqueline","JUDGE_LAST_NAME":"Bulluck","sourceDate":"2025-06-03"},{"SOURCE_ROW_NUMBER":"450980","VIOLATION_NO":"9156613","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"576.00","DECISION_PENALTY_AMT":"576.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"449867","VIOLATION_NO":"9156728","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"388.00","DECISION_PENALTY_AMT":"357.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"449866","VIOLATION_NO":"9156611","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"492.00","DECISION_PENALTY_AMT":"492.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"449811","VIOLATION_NO":"9156743","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"204.00","DECISION_PENALTY_AMT":"147.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"449751","VIOLATION_NO":"9156559","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"535.00","DECISION_PENALTY_AMT":"535.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"161535","VIOLATION_NO":"9156563","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"161470","VIOLATION_NO":"9156562","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2862.00","DECISION_PENALTY_AMT":"861.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"},{"SOURCE_ROW_NUMBER":"161469","VIOLATION_NO":"9156561","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"9510.00","DECISION_PENALTY_AMT":"2862.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2025-04-04"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":9664,"firstDate":"2007-09-04","lastDate":"2026-10-08","metrics":{"recentRows":3917,"cpdmSamples":6967,"voidSamples":2522,"validSamples":7142,"maxConcentration":16.951,"concentrationTotal":5421.673},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2432073","SMP_TAKEN_DT":"10/8/2026","CONC":".496","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2026-10-08"},{"SOURCE_ROW_NUMBER":"2773800","SMP_TAKEN_DT":"10/7/2026","CONC":".154","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2026-10-07"},{"SOURCE_ROW_NUMBER":"2091451","SMP_TAKEN_DT":"10/6/2026","CONC":".187","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2026-10-06"},{"SOURCE_ROW_NUMBER":"2773152","SMP_TAKEN_DT":"10/5/2026","CONC":".168","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2026-10-05"},{"SOURCE_ROW_NUMBER":"1418670","CASS_NUM":"58493436","SMP_TAKEN_DT":"9/23/2026","CONC":".068","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":"TIPPLE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"579279","CASS_NUM":"58493460","SMP_TAKEN_DT":"9/23/2026","CONC":".082","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":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"1578276","CASS_NUM":"51656374","SMP_TAKEN_DT":"9/15/2026","CONC":".044","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-15"},{"SOURCE_ROW_NUMBER":"867056","CASS_NUM":"51656380","SMP_TAKEN_DT":"9/9/2026","CONC":"1.052","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"EXCESS SAMPLE","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"558231","CASS_NUM":"51656377","SMP_TAKEN_DT":"9/9/2026","CONC":".533","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"EXCESS SAMPLE","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"24835","CASS_NUM":"51656382","SMP_TAKEN_DT":"9/9/2026","CONC":".715","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"EXCESS SAMPLE","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"1527800","CASS_NUM":"51656368","SMP_TAKEN_DT":"9/8/2026","CONC":".719","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-08"},{"SOURCE_ROW_NUMBER":"543772","CASS_NUM":"51656379","SMP_TAKEN_DT":"9/8/2026","CONC":"1.421","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-08"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":30,"firstDate":"2008-05-20","lastDate":"2024-06-21","metrics":{"linkedIssuances":30},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":465,"firstDate":"2007-10-03","lastDate":"2025-11-20","metrics":{"decisions":462,"ssChanged":104,"recentRows":40,"decisionPenalty":527203,"proposedPenalty":801370},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"337430","CITATION_NO":"9734987","CITATION_ISSUE_DT":"11/20/2025","DOCKET_NO":"WEST 2026-0089","CFR_STANDARD_CODE":"75.370(a)(1)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6037.00","sourceDate":"2025-11-20"},{"SOURCE_ROW_NUMBER":"223650","CITATION_NO":"9734988","CITATION_ISSUE_DT":"11/20/2025","DOCKET_NO":"WEST 2026-0089","CFR_STANDARD_CODE":"75.370(a)(1)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6037.00","sourceDate":"2025-11-20"},{"SOURCE_ROW_NUMBER":"54486","CITATION_NO":"9734986","CITATION_ISSUE_DT":"11/20/2025","DOCKET_NO":"WEST 2026-0089","CFR_STANDARD_CODE":"75.370(a)(1)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1818.00","sourceDate":"2025-11-20"},{"SOURCE_ROW_NUMBER":"225095","CITATION_NO":"9734813","CITATION_ISSUE_DT":"05/21/2025","DOCKET_NO":"WEST 2025-0325","DECISION_DT":"12/17/2025","CFR_STANDARD_CODE":"75.202(a)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"959.00","DECISION_PENALTY_AMT":"959.00","sourceDate":"2025-05-21"},{"SOURCE_ROW_NUMBER":"108398","CITATION_NO":"9734711","CITATION_ISSUE_DT":"03/03/2025","DOCKET_NO":"WEST 2025-0236","DECISION_DT":"11/12/2025","CFR_STANDARD_CODE":"75.1107-16(b)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"959.00","DECISION_PENALTY_AMT":"959.00","sourceDate":"2025-03-03"},{"SOURCE_ROW_NUMBER":"168367","CITATION_NO":"9734622","CITATION_ISSUE_DT":"02/11/2025","DOCKET_NO":"WEST 2025-0236","DECISION_DT":"11/12/2025","CFR_STANDARD_CODE":"75.380(d)(7)(vii)(B)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2503.00","DECISION_PENALTY_AMT":"2503.00","sourceDate":"2025-02-11"},{"SOURCE_ROW_NUMBER":"51974","CITATION_NO":"9734617","CITATION_ISSUE_DT":"02/03/2025","DOCKET_NO":"WEST 2025-0186","DECISION_DT":"06/03/2025","CFR_STANDARD_CODE":"75.380(b)(2)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1431.00","DECISION_PENALTY_AMT":".00","sourceDate":"2025-02-03"},{"SOURCE_ROW_NUMBER":"53104","CITATION_NO":"9156743","CITATION_ISSUE_DT":"05/30/2024","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","CFR_STANDARD_CODE":"75.1107-9(a)(1)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"204.00","DECISION_PENALTY_AMT":"147.00","sourceDate":"2024-05-30"},{"SOURCE_ROW_NUMBER":"165735","CITATION_NO":"9156728","CITATION_ISSUE_DT":"05/21/2024","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","CFR_STANDARD_CODE":"75.403","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"388.00","DECISION_PENALTY_AMT":"357.00","sourceDate":"2024-05-21"},{"SOURCE_ROW_NUMBER":"222424","CITATION_NO":"9156709","CITATION_ISSUE_DT":"04/08/2024","DOCKET_NO":"WEST 2024-0234","DECISION_DT":"11/18/2024","CFR_STANDARD_CODE":"75.1909(d)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"626.00","DECISION_PENALTY_AMT":"189.00","sourceDate":"2024-04-08"},{"SOURCE_ROW_NUMBER":"278009","CITATION_NO":"9156707","CITATION_ISSUE_DT":"04/02/2024","DOCKET_NO":"WEST 2024-0246","DECISION_DT":"09/09/2024","CFR_STANDARD_CODE":"75.1715","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"147.00","DECISION_PENALTY_AMT":"147.00","sourceDate":"2024-04-02"},{"SOURCE_ROW_NUMBER":"452044","CITATION_NO":"9156559","CITATION_ISSUE_DT":"11/21/2023","DOCKET_NO":"WEST 2025-0054","DECISION_DT":"04/04/2025","CFR_STANDARD_CODE":"75.370(a)(1)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"535.00","DECISION_PENALTY_AMT":"535.00","sourceDate":"2023-11-21"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":1591,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":17,"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":342,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":15,"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":1,"firstDate":"2007-02-27","lastDate":"2007-02-27","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":172,"firstDate":"2007-09-17","lastDate":"2026-08-10","metrics":{"inspectors":397,"recentRows":48,"onSiteHours":13889.5,"inspectionHours":23331.25,"inspectionSamples":2147},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1099690","EVENT_NO":"F00AC95","INSPECTION_BEGIN_DT":"08/10/2026","INSPECTION_END_DT":"09/24/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"254","SUM_TOTAL_ON_SITE_HOURS":"160.75","sourceDate":"2026-08-10"},{"SOURCE_ROW_NUMBER":"34591","EVENT_NO":"F0211EF","INSPECTION_BEGIN_DT":"04/01/2026","INSPECTION_END_DT":"06/09/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"295.5","SUM_TOTAL_ON_SITE_HOURS":"189.25","sourceDate":"2026-04-01"},{"SOURCE_ROW_NUMBER":"512273","EVENT_NO":"F00AC87","INSPECTION_BEGIN_DT":"01/05/2026","INSPECTION_END_DT":"03/12/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"403.75","SUM_TOTAL_ON_SITE_HOURS":"256.5","sourceDate":"2026-01-05"},{"SOURCE_ROW_NUMBER":"636410","EVENT_NO":"F008081","INSPECTION_BEGIN_DT":"12/28/2025","INSPECTION_END_DT":"12/30/2025","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"18.5","SUM_TOTAL_ON_SITE_HOURS":"7.5","sourceDate":"2025-12-28"},{"SOURCE_ROW_NUMBER":"800663","EVENT_NO":"F020362","INSPECTION_BEGIN_DT":"12/15/2025","INSPECTION_END_DT":"12/18/2025","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"24","SUM_TOTAL_ON_SITE_HOURS":"9","sourceDate":"2025-12-15"},{"SOURCE_ROW_NUMBER":"530589","EVENT_NO":"F00807C","INSPECTION_BEGIN_DT":"10/01/2025","INSPECTION_END_DT":"12/16/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"502.25","SUM_TOTAL_ON_SITE_HOURS":"319.75","sourceDate":"2025-10-01"},{"SOURCE_ROW_NUMBER":"311097","EVENT_NO":"F00DC2D","INSPECTION_BEGIN_DT":"09/10/2025","INSPECTION_END_DT":"09/10/2025","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2025-09-10"},{"SOURCE_ROW_NUMBER":"949625","EVENT_NO":"F00AC77","INSPECTION_BEGIN_DT":"07/01/2025","INSPECTION_END_DT":"09/03/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"4","SUM_TOTAL_INSP_HOURS":"407","SUM_TOTAL_ON_SITE_HOURS":"248.5","sourceDate":"2025-07-01"},{"SOURCE_ROW_NUMBER":"563658","EVENT_NO":"F00806B","INSPECTION_BEGIN_DT":"06/19/2025","INSPECTION_END_DT":"07/02/2025","ACTIVITY_CODE":"E08","ACTIVITY":"Non-Injury Accident Investigation","NBR_INSPECTOR":"4","SUM_TOTAL_INSP_HOURS":"43.75","SUM_TOTAL_ON_SITE_HOURS":"17.5","sourceDate":"2025-06-19"},{"SOURCE_ROW_NUMBER":"94159","EVENT_NO":"F008069","INSPECTION_BEGIN_DT":"04/01/2025","INSPECTION_END_DT":"06/12/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"318.25","SUM_TOTAL_ON_SITE_HOURS":"203","sourceDate":"2025-04-01"},{"SOURCE_ROW_NUMBER":"322553","EVENT_NO":"6468839","INSPECTION_BEGIN_DT":"01/23/2025","INSPECTION_END_DT":"03/13/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"344","SUM_TOTAL_ON_SITE_HOURS":"216","sourceDate":"2025-01-23"},{"SOURCE_ROW_NUMBER":"106989","EVENT_NO":"F00CE62","INSPECTION_BEGIN_DT":"12/10/2024","INSPECTION_END_DT":"12/10/2024","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2024-12-10"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":221,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":15852,"employees":38,"production":52735},"2026-Q1":{"hours":22127,"employees":46,"production":75670},"2025-Q4":{"hours":27153,"employees":70,"production":98718},"2025-Q3":{"hours":21615,"employees":77,"production":69623},"2025-Q2":{"hours":31126,"employees":80,"production":97505},"2025-Q1":{"hours":40524,"employees":99,"production":129634},"2024-Q4":{"hours":38961,"employees":103,"production":133370},"2024-Q3":{"hours":38698,"employees":103,"production":160733},"2024-Q2":{"hours":42265,"employees":103,"production":139607},"2024-Q1":{"hours":47708,"employees":105,"production":148632},"2023-Q4":{"hours":45726,"employees":108,"production":156006},"2023-Q3":{"hours":46185,"employees":109,"production":196378}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":57,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":178146,"employees":83,"production":546616},"2018":{"hours":179752,"employees":84,"production":615947},"2019":{"hours":200683,"employees":88,"production":657782},"2020":{"hours":160943,"employees":85,"production":592669},"2021":{"hours":138863,"employees":71,"production":466410},"2022":{"hours":139716,"employees":84,"production":468530},"2023":{"hours":185614,"employees":106,"production":643143},"2024":{"hours":167632,"employees":105,"production":582342},"2025":{"hours":120418,"employees":81,"production":395480},"2026":{"hours":37979,"employees":43,"production":128405}},"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":488,"firstDate":"2007-10-02","lastDate":"2026-09-23","metrics":{"recentRows":263,"doseOver100":35,"actDoseTotal":25499,"pelDoseTotal":15491},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"17995","EVENT_NO":"F00AC95","SURVEY_DATE":"09/23/2026","OCCUPATION_CD_DESC":"TIPPLE OPERATOR","MACHINE_CD":"40","ACT_DOSE_85":"8","PEL_DOSE_90":"2","SURVEY_TYPE":"I","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"17994","EVENT_NO":"F00AC95","SURVEY_DATE":"09/23/2026","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","ACT_DOSE_85":"8","PEL_DOSE_90":"3","SURVEY_TYPE":"I","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"17993","EVENT_NO":"F00AC95","SURVEY_DATE":"08/25/2026","OCCUPATION_CD_DESC":"(STANDARD SIDE) SHUTTLE CAR OPERATOR","MACHINE_CD":"37","ACT_DOSE_85":"34","PEL_DOSE_90":"10","SURVEY_TYPE":"I","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"17992","EVENT_NO":"F00AC95","SURVEY_DATE":"08/25/2026","OCCUPATION_CD_DESC":"UTILITY MAN","MACHINE_CD":"40","ACT_DOSE_85":"40","PEL_DOSE_90":"20","SURVEY_TYPE":"I","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"17991","EVENT_NO":"F00AC95","SURVEY_DATE":"08/25/2026","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (OFF STANDARD)","MACHINE_CD":"37","ACT_DOSE_85":"33","PEL_DOSE_90":"9","SURVEY_TYPE":"I","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"17990","EVENT_NO":"F00AC95","SURVEY_DATE":"08/25/2026","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR HELPER","MACHINE_CD":"40","ACT_DOSE_85":"0","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"17989","EVENT_NO":"F00AC95","SURVEY_DATE":"08/25/2026","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","MACHINE_CD":"37","ACT_DOSE_85":"37","PEL_DOSE_90":"18","SURVEY_TYPE":"I","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"18018","EVENT_NO":"F0211EF","SURVEY_DATE":"06/03/2026","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","ACT_DOSE_85":"5","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"18017","EVENT_NO":"F0211EF","SURVEY_DATE":"06/03/2026","OCCUPATION_CD_DESC":"FOREMAN","MACHINE_CD":"40","ACT_DOSE_85":"10","PEL_DOSE_90":"3","SURVEY_TYPE":"I","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"17988","EVENT_NO":"F00AC87","SURVEY_DATE":"03/04/2026","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","ACT_DOSE_85":"16","PEL_DOSE_90":"2","SURVEY_TYPE":"I","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"17987","EVENT_NO":"F00AC87","SURVEY_DATE":"03/04/2026","OCCUPATION_CD_DESC":"TIPPLE OPERATOR","MACHINE_CD":"40","ACT_DOSE_85":"6","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"17986","EVENT_NO":"F00AC87","SURVEY_DATE":"02/26/2026","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","MACHINE_CD":"30","ACT_DOSE_85":"80","PEL_DOSE_90":"42","SURVEY_TYPE":"I","sourceDate":"2026-02-26"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":440,"firstDate":"2008-08-04","lastDate":"2026-08-25","metrics":{"recentRows":201,"voidSamples":18,"maxQuartzPct":14.7,"validSamples":422,"quartzPctTotal":930.4},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"59730","CASSETTE_NO":"58493469","SAMPLE_DT":"08/25/2026","QUARTZ_MICROGRAMS":"0","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-08-25"},{"SOURCE_ROW_NUMBER":"107314","CASSETTE_NO":"58493618","SAMPLE_DT":"05/12/2026","QUARTZ_MICROGRAMS":"0","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-05-12"},{"SOURCE_ROW_NUMBER":"99700","CASSETTE_NO":"58493616","SAMPLE_DT":"05/12/2026","QUARTZ_PCT":"00.1","QUARTZ_MICROGRAMS":"1","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-05-12"},{"SOURCE_ROW_NUMBER":"6676","CASSETTE_NO":"58493558","SAMPLE_DT":"05/12/2026","QUARTZ_PCT":"00.2","QUARTZ_MICROGRAMS":"2","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-05-12"},{"SOURCE_ROW_NUMBER":"145104","CASSETTE_NO":"58493665","SAMPLE_DT":"04/14/2026","QUARTZ_PCT":"01.5","QUARTZ_MICROGRAMS":"11","OCC_CODE_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-14"},{"SOURCE_ROW_NUMBER":"137682","CASSETTE_NO":"58493433","SAMPLE_DT":"04/14/2026","QUARTZ_PCT":"00.9","QUARTZ_MICROGRAMS":"3","OCC_CODE_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-14"},{"SOURCE_ROW_NUMBER":"74720","CASSETTE_NO":"58493613","SAMPLE_DT":"04/14/2026","QUARTZ_PCT":"01.1","QUARTZ_MICROGRAMS":"5","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-14"},{"SOURCE_ROW_NUMBER":"129563","CASSETTE_NO":"58516951","SAMPLE_DT":"04/07/2026","QUARTZ_PCT":"01.4","QUARTZ_MICROGRAMS":"6","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-07"},{"SOURCE_ROW_NUMBER":"97189","CASSETTE_NO":"58516825","SAMPLE_DT":"04/07/2026","QUARTZ_PCT":"01.0","QUARTZ_MICROGRAMS":"3","OCC_CODE_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-07"},{"SOURCE_ROW_NUMBER":"58973","CASSETTE_NO":"58516974","SAMPLE_DT":"04/07/2026","QUARTZ_PCT":"01.7","QUARTZ_MICROGRAMS":"5","OCC_CODE_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-07"},{"SOURCE_ROW_NUMBER":"56805","CASSETTE_NO":"58516820","SAMPLE_DT":"04/07/2026","QUARTZ_PCT":"01.0","QUARTZ_MICROGRAMS":"4","OCC_CODE_DESC":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-07"},{"SOURCE_ROW_NUMBER":"33546","CASSETTE_NO":"58516819","SAMPLE_DT":"04/07/2026","QUARTZ_PCT":"02.0","QUARTZ_MICROGRAMS":"5","OCC_CODE_DESC":"SHUTTLE CAR OPERATOR (OFF STANDARD)","SAMPLE_TYPE_DESC":"NON DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-04-07"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":1671,"firstDate":"2007-09-18","lastDate":"2026-09-23","metrics":{"ss":223,"amountDue":815449,"contested":83,"amountPaid":808203.65,"recentRows":614,"section104d":3,"unterminated":4,"proposedPenalty":1048925},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"342504","VIOLATION_NO":"9735067","VIOLATION_ISSUE_DT":"09/23/2026","SIG_SUB":"N","PART_SECTION":"47.41(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/23/2026","CONTESTED_IND":"N","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"342503","VIOLATION_NO":"9735066","VIOLATION_ISSUE_DT":"09/21/2026","SIG_SUB":"N","PART_SECTION":"75.503","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/21/2026","CONTESTED_IND":"N","sourceDate":"2026-09-21"},{"SOURCE_ROW_NUMBER":"342502","VIOLATION_NO":"9735065","VIOLATION_ISSUE_DT":"09/15/2026","SIG_SUB":"Y","PART_SECTION":"75.202(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"3","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/15/2026","CONTESTED_IND":"N","sourceDate":"2026-09-15"},{"SOURCE_ROW_NUMBER":"342501","VIOLATION_NO":"9735064","VIOLATION_ISSUE_DT":"09/14/2026","SIG_SUB":"N","PART_SECTION":"75.1100-3","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/14/2026","CONTESTED_IND":"N","sourceDate":"2026-09-14"},{"SOURCE_ROW_NUMBER":"342500","VIOLATION_NO":"9735063","VIOLATION_ISSUE_DT":"09/09/2026","SIG_SUB":"N","PART_SECTION":"75.1600-2(e)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/09/2026","CONTESTED_IND":"N","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"342499","VIOLATION_NO":"9735062","VIOLATION_ISSUE_DT":"08/18/2026","SIG_SUB":"N","PART_SECTION":"75.333(h)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/18/2026","PROPOSED_PENALTY":"209","AMOUNT_DUE":"209","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-08-18"},{"SOURCE_ROW_NUMBER":"342498","VIOLATION_NO":"9735061","VIOLATION_ISSUE_DT":"08/17/2026","SIG_SUB":"N","PART_SECTION":"75.370(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/18/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-08-17"},{"SOURCE_ROW_NUMBER":"342497","VIOLATION_NO":"9735060","VIOLATION_ISSUE_DT":"08/13/2026","SIG_SUB":"N","PART_SECTION":"75.512","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/13/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-08-13"},{"SOURCE_ROW_NUMBER":"342496","VIOLATION_NO":"9735059","VIOLATION_ISSUE_DT":"08/12/2026","SIG_SUB":"N","PART_SECTION":"75.333(h)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/12/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-08-12"},{"SOURCE_ROW_NUMBER":"341892","VIOLATION_NO":"5037360","VIOLATION_ISSUE_DT":"06/09/2026","SIG_SUB":"N","PART_SECTION":"49.16(b)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/09/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-06-09"},{"SOURCE_ROW_NUMBER":"341891","VIOLATION_NO":"5037359","VIOLATION_ISSUE_DT":"06/03/2026","SIG_SUB":"N","PART_SECTION":"77.410(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/03/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-06-03"},{"SOURCE_ROW_NUMBER":"341890","VIOLATION_NO":"5037354","VIOLATION_ISSUE_DT":"05/28/2026","SIG_SUB":"N","PART_SECTION":"75.1725(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/28/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-05-28"}]}],"safety":{"href":"/api/v1/mines/0504864/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0504864/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":{"averageEmployees":104,"companyType":"Independent Producer Operator","components":[{"averageEmployees":104,"laborHours":167632,"mineType":"Underground","productionTons":582342}],"county":"La Plata","laborHours":167632,"mineName":"King Ii","mineType":"Underground","mshaId":"0504864","operatingAddress":"6473 County Road 120, Hesperus, CO 81326","operatingCompany":"Gcc Energy Llc","operationType":"Mine only","productionTons":582342,"reportedRows":1,"sourceUrl":"https://www.eia.gov/coal/data/public/xls/coalpublic2024.xlsx","state":"Colorado","status":"Active","supplyRegion":"Western","union":"","year":2024},"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 47.41","heading":"Requirement for container labels.","id":"47.41","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41","part":"47","partHeading":"PART 47—HAZARD COMMUNICATION (HazCom)","subchapter":"H","subchapterHeading":"SUBCHAPTER H—EDUCATION AND TRAINING","subpart":"E","subpartHeading":"Subpart E—Container Labels and Other Forms of Warning","text":"(a) The operator must ensure that each container of a hazardous chemical has a label. If a container is tagged or marked with the appropriate information, it is labeled.\n\n(1) The operator must replace a container label immediately if it is missing or if the hazard information on the label is unreadable.\n\n(2) The operator must not remove or deface existing labels on containers of hazardous chemicals.\n\n(b) For each hazardous chemical produced at the mine, the operator must prepare a container label and update this label with any significant, new information about the chemical's hazards within 3 months of becoming aware of this information.\n\n(c) For each hazardous chemical brought to the mine, the operator must replace an outdated label when a revised label is received from the chemical's manufacturer or supplier. The operator is not responsible for an inaccurate label obtained from the chemical's manufacturer or supplier.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.503","heading":"Permissible electric face equipment; maintenance.","id":"75.503","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"[Statutory Provisions]\n\nThe operator of each coal mine shall maintain in permissible condition all electric face equipment required by §§ 75.500, 75.501, 75.504 to be permissible which is taken into or used inby the last open crosscut of any such mine.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.202","heading":"Protection from falls of roof, face and ribs.","id":"75.202","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.202","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"C","subpartHeading":"Subpart C—Roof Support","text":"(a) The roof, face and ribs of areas where persons work or travel shall be supported or otherwise controlled to protect persons from hazards related to falls of the roof, face or ribs and coal or rock bursts.\n\n(b) No person shall work or travel under unsupported roof unless in accordance with this subpart.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1100-3","heading":"Condition and examination of firefighting equipment.","id":"75.1100-3","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-3","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"L","subpartHeading":"Subpart L—Fire Protection","text":"All firefighting equipment shall be maintained in a usable and operative condition. Chemical extinguishers shall be examined every 6 months and the date of the examination shall be written on a permanent tag attached to the extinguisher.\n\n[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1600-2","heading":"Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms.","id":"75.1600-2","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-Q/section-75.1600-2","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Communications","text":"(a) Telephones or equivalent two-way communication facilities provided at each working section shall be located not more than 500 feet outby the last open crosscut and not more than 800 feet from the farthest point of penetration of the working places on such section.\n\n(b) The incoming communication signal shall activate an audible alarm, distinguishable from the surrounding noise level, or a visual alarm that can be seen by a miner regularly employed on the working section.\n\n(c) If a communication system other than telephones is used and its operation depends entirely upon power from the mine electric system, means shall be provided to permit continued communication in the event the mine electric power fails or is cut off; provided, however, that where trolley phones and telephones are both used, an alternate source of power for the trolley phone system is not required.\n\n(d) Trolley phones connected to the trolley wire shall be grounded in accordance with Subpart H of this part.\n\n(e) Telephones or equivalent two-way communication facilities shall be maintained in good operating condition at all times. In the event of any failure in the system that results in loss of communication, repairs shall be started immediately, and the system restored to operating condition as soon as possible.\n\n[38 FR 29999, Oct. 31, 1973]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.333","heading":"Ventilation controls.","id":"75.333","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a) For purposes of this section, “doors” include any door frames.\n\n(b) Permanent stoppings or other permanent ventilation control devices constructed after November 15, 1992, shall be built and maintained—\n\n(1) Between intake and return air courses, except temporary controls may be used in rooms that are 600 feet or less from the centerline of the entry from which the room was developed including where continuous face haulage systems are used in such rooms. Unless otherwise approved in the ventilation plan, these stoppings or controls shall be maintained to and including the third connecting crosscut outby the working face;\n\n(2) To separate belt conveyor haulageways from return air courses, except where belt entries in areas of mines developed before March 30, 1970, are used as return air courses;\n\n(3) To separate belt conveyor haulageways from intake air courses when the air in the intake air courses is used to provide air to active working places. Temporary ventilation controls may be used in rooms that are 600 feet or less from the centerline of the entry from which the rooms were developed including where continuous face haulage systems are used in such rooms. When continuous face haulage systems are used, permanent stoppings or other permanent ventilation control devices shall be built and maintained to the outby most point of travel of the dolly or 600 feet from the point of deepest penetration in the conveyor belt entry, whichever distance is closer to the point of deepest penetration, to separate the continuous haulage entry from the intake entries;\n\n(4) To separate the primary escapeway from belt and trolley haulage entries, as required by § 75.380(g). For the purposes of § 75.380(g), the loading point for a continuous haulage system shall be the outby most point of travel of the dolly or 600 feet from the point of deepest penetration, whichever distance is less; and\n\n(5) In return air courses to direct air into adjacent worked-out areas.\n\n(c) Personnel doors shall be constructed of noncombustible material and shall be of sufficient strength to serve their intended purpose of maintaining separation and permitting travel between air courses, and shall be installed as follows in permanent stoppings constructed after November 15, 1992:\n\n(1) The distance between personnel doors shall be no more than 300 feet in seam heights below 48 inches and 600 feet in seam heights 48 inches or higher.\n\n(2) The location of all personnel doors in stoppings along escapeways shall be clearly marked so that the doors may be easily identified by anyone traveling in the escapeway and in the entries on either side of the doors.\n\n(3) When not in use, personnel doors shall be closed.\n\n(4) An airlock shall be established where the air pressure differential between air courses creates a static force exceeding 125 pounds on closed personnel doors along escapeways.\n\n(d) Doors, other than personnel doors, constructed after November 15, 1992, that are used in lieu of permanent stoppings or to control ventilation within an air course shall be:\n\n(1) Made of noncombustible material or coated on all accessible surfaces with flame-retardant materials having a flame-spread index of 25 or less, as tested under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(2) Of sufficient strength to serve their intended purpose of maintaining separation and permitting travel between or within air courses or entries.\n\n(3) Installed in pairs to form an airlock. When an airlock is used, one side of the airlock shall remain closed. When not in use, both sides shall be closed.\n\n(e)(1)(i) Except as provided in paragraphs (e)(2), (3), and (4) of this section, all overcasts, undercasts, shaft partitions, permanent stoppings, and regulators, installed after June 10, 1996, shall be constructed in a traditionally accepted method and of materials that have been demonstrated to perform adequately or in a method and of materials that have been tested and shown to have a minimum strength equal to or greater than the traditionally accepted in-mine controls. Tests may be performed under ASTM E72-80, “Standard Methods of Conducting Strength Tests of Panels for Building Construction” (Section 12-Transverse Load-Specimen Vertical, load, only), or the operator may conduct comparative in-mine tests. In-mine tests shall be designed to demonstrate the comparative strength of the proposed construction and a traditionally accepted in-mine control. The publication ASTM E72-80, “Standard Methods of Conducting Strength Tests of Panels for Building Construction,” is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(ii) All overcasts, undercasts, shaft partitions, permanent stoppings, and regulators, installed after November 15, 1992, shall be constructed of noncombustible material. Materials that are suitable for the construction of overcasts, undercasts, shaft partitions, permanent stoppings, and regulators include concrete, concrete block, brick, cinder block, tile, or steel. No ventilation controls installed after November 15, 1992, shall be constructed of aluminum.\n\n(2) In anthracite mines, permanent stoppings may be constructed of overlapping layers of hardwood mine boards, if the stoppings are a minimum 2 inches thick.\n\n(3) When timbers are used to create permanent stoppings in heaving or caving areas, the stoppings shall be coated on all accessible surfaces with a flame-retardant material having a flame-spread index of 25 or less, as tested under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(4) In anthracite mines, doors and regulators may be constructed of overlapping layers of hardwood boards, if the doors, door frames, and regulators are a minimum 2 inches thick.\n\n(f) When sealants are applied to ventilation controls, the sealant shall have a flame-spread index of 25 or less under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(g) Before mining is discontinued in an entry or room that is advanced more than 20 feet from the inby rib, a crosscut shall be made or line brattice shall be installed and maintained to provide adequate ventilation. When conditions such as methane liberation warrant a distance less than 20 feet, the approved ventilation plan shall specify the location of such rooms or entries and the maximum distance they will be developed before a crosscut is made or line brattice is installed.\n\n(h) All ventilation controls, including seals, shall be maintained to serve the purpose for which they were built.\n\n[61 FR 9829, Mar. 11, 1996; 61 FR 20877, May 8, 1996; 61 FR 26442, May 28, 1996; 61 FR 29288, 29289, June 10, 1996, as amended at 67 FR 38386, June 4, 2002; 71 FR 16668, Apr. 3, 2006; 73 FR 80612, Dec. 31, 2008; 80 FR 52991, Sept. 2, 2015; 91 FR 9448, Feb. 26, 2026]","occurrenceCount":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.370","heading":"Mine ventilation plan; submission and approval.","id":"75.370","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a)(1) The operator shall develop and follow a ventilation plan approved by the district manager. The plan shall be designed to control methane and respirable dust and shall be suitable to the conditions and mining system at the mine. The ventilation plan shall consist of two parts, the plan content as prescribed in § 75.371 and the ventilation map with information as prescribed in § 75.372. Only that portion of the map which contains information required under § 75.371 will be subject to approval by the district manager.\n\n(2) The proposed ventilation plan and any revision to the plan shall be submitted in writing to the district manager. When revisions to a ventilation plan are proposed, only the revised pages, maps, or sketches of the plan need to be submitted. When required in writing by the district manager, the operator shall submit a fully revised plan by consolidating the plan and all revisions in an orderly manner and by deleting all outdated material.\n\n(3) (i) The mine operator shall notify the representative of miners at least 5 days prior to submission of a mine ventilation plan and any revision to a mine ventilation plan. If requested, the mine operator shall provide a copy to the representative of miners at the time of notification. In the event of a situation requiring immediate action on a plan revision, notification of the revision shall be given, and if requested, a copy of the revision shall be provided, to the representative of miners by the operator at the time of submittal;\n\n(ii) A copy of the proposed ventilation plan, and a copy of any proposed revision, submitted for approval shall be made available for inspection by the representative of miners; and\n\n(iii) A copy of the proposed ventilation plan, and a copy of any proposed revision, submitted for approval shall be posted on the mine bulletin board at the time of submittal. The proposed plan or proposed revision shall remain posted until it is approved, withdrawn or denied.\n\n(b) Following receipt of the proposed plan or proposed revision, the representative of miners may submit timely comments to the district manager, in writing, for consideration during the review process. A copy of these comments shall also be provided to the operator by the district manager upon request.\n\n(c) (1) The district manager will notify the operator in writing of the approval or denial of approval of a proposed ventilation plan or proposed revision. A copy of this notification will be sent to the representative of miners by the district manager.\n\n(2) If the district manager denies approval of a proposed plan or revision, the deficiencies of the plan or revision shall be specified in writing and the operator will be provided an opportunity to discuss the deficiencies with the district manager.\n\n(d) No proposed ventilation plan shall be implemented before it is approved by the district manager. Any intentional change to the ventilation system that alters the main air current or any split of the main air current in a manner that could materially affect the safety and health of the miners, or any change to the information required in § 75.371 shall be submitted to and approved by the district manager before implementation.\n\n(e) Before implementing an approved ventilation plan or a revision to a ventilation plan, persons affected by the revision shall be instructed by the operator in its provisions.\n\n(f) The approved ventilation plan and any revisions shall be—\n\n(1) Provided upon request to the representative of miners by the operator following notification of approval;\n\n(2) Made available for inspection by the representative of miners; and\n\n(3) Posted on the mine bulletin board within 1 working day following notification of approval. The approved plan and revisions shall remain posted on the bulletin board for the period that they are in effect.\n\n(g) The ventilation plan for each mine shall be reviewed every 6 months by an authorized representative of the Secretary to assure that it is suitable to current conditions in the mine.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.512","heading":"Electric equipment; examination, testing and maintenance.","id":"75.512","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"[Statutory Provision]\n\nAll electric equipment shall be frequently examined, tested, and properly maintained by a qualified person to assure safe operating conditions. When a potentially dangerous condition is found on electric equipment, such equipment shall be removed from service until such condition is corrected. A record of such examinations shall be kept and made available to an authorized representative of the Secretary and to the miners in such mine.\n\n[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995]","occurrenceCount":1},{"chapter":"I","heading":"Equipment and maintenance requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-49/subpart-B/section-49.16","part":"49","subchapter":"H","subpart":"B","id":"49.16","citation":"30 CFR 49.16","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER H—EDUCATION AND TRAINING","partHeading":"PART 49—MINE RESCUE TEAMS","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 75.1725","heading":"Machinery and equipment; operation and maintenance.","id":"75.1725","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"R","subpartHeading":"Subpart R—Miscellaneous","text":"(a) Mobile and stationary machinery and equipment shall be maintained in safe operating condition and machinery or equipment in unsafe condition shall be removed from service immediately.\n\n(b) Machinery and equipment shall be operated only by persons authorized to operate such machinery or equipment.\n\n(c) Repairs or maintenance shall not be performed on machinery until the power is off and the machinery is blocked against motion, except where machinery motion is necessary to make adjustments.\n\n(d) Machinery shall not be lubricated manually while in motion, unless equipped with extended fittings or cups.\n\n[38 FR 4976, Feb. 23, 1973]","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"0504864","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}