{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3304565","name":"Bergholz 7","status":"Abandoned and Sealed","status_date":"2024-05-29","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"OH","county":"Jefferson","nearest_town":"Bergholz","operator_id":"P09635","operator_name":"Rosebud Mining Company","controller_id":"C07485","controller_name":"J Clifford  Forrest III","district":"C03","office":"St. Clairsville OH Field Office","employees":0,"latitude":40.511389,"longitude":-80.840556},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":3058},"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":"3304565","name":"Bergholz 7"},"operator":{"type":"operator","id":"P09635","name":"Rosebud Mining Company"},"controller":{"type":"controller","id":"C07485","name":"J Clifford  Forrest III"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07485","name":"J Clifford  Forrest III"},"object":{"type":"mine","id":"3304565","name":"Bergholz 7"},"validFrom":"1979-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|C07485|1979-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13727","name":"Forest Coal Company"},"object":{"type":"mine","id":"3304565","name":"Bergholz 7"},"validFrom":"1989-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|C13727|1989-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20103","name":"Mountain Spring Coal Company"},"object":{"type":"mine","id":"3304565","name":"Bergholz 7"},"validFrom":"2006-02-27","validTo":"2010-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|P20103|2006-02-27|2010-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13727","name":"Forest Coal Company"},"object":{"type":"operator","id":"P20103","name":"Mountain Spring Coal Company"},"validFrom":"2006-02-27","validTo":"2010-03-31","current":false,"derived":true,"evidenceMineId":"3304565","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|P20103|2006-02-27|C13727|1989-03-01|90939"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P09635","name":"Rosebud Mining Company"},"object":{"type":"mine","id":"3304565","name":"Bergholz 7"},"validFrom":"2010-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|P09635|2010-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07485","name":"J Clifford  Forrest III"},"object":{"type":"operator","id":"P09635","name":"Rosebud Mining Company"},"validFrom":"2010-04-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3304565","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3304565|P09635|2010-04-01|C07485|1979-08-01|74740"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":49,"firstDate":"2006-09-28","lastDate":"2017-01-06","metrics":{"daysLost":245,"injuries":25,"fatalities":0,"recentRows":0,"restrictedDays":397,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"217532","DOCUMENT_NO":"220170170050","ACCIDENT_DT":"01/06/2017","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Assistant mine foreman, Assistant mine manager","NO_INJURIES":"1","DAYS_LOST":"46","NARRATIVE":"A worker was helping put tin on the roof of a new shed that was being built on the surface near a new fan location that was enclosing some electrical enclosures. EE went to pick up on the cables that were coming out the mast to slide a piece of roof tin under them and felt a tear and heard a pop sound in right arm. EE tore the ligament that attaches the bicep to the elbow.","sourceDate":"2017-01-06"},{"SOURCE_ROW_NUMBER":"28327","DOCUMENT_NO":"220143070069","ACCIDENT_DT":"10/21/2014","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer","NO_INJURIES":"1","DAYS_LOST":"35","NARRATIVE":"MOBILE OPERATOR TURNING INTO A 3 TO 2 AND WAS PINCHED BETWEEN MOBILE AND RIB","sourceDate":"2014-10-21"},{"SOURCE_ROW_NUMBER":"148740","DOCUMENT_NO":"220142950018","ACCIDENT_DT":"10/12/2014","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Roof fall in the #3,#2,#1 entry at 40 x-cut of the A-butt section. Roof fall was above anchorage and blocking our secondary escape way.","sourceDate":"2014-10-12"},{"SOURCE_ROW_NUMBER":"49745","DOCUMENT_NO":"220142040029","ACCIDENT_DT":"07/15/2014","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against a moving object","OCCUPATION":"Beltman, Conveyor man,  Conveyor belt worker, Mobile bridge carrierman, Feeder operator, Conveyor rider","NO_INJURIES":"1","DAYS_LOST":"4","NARRATIVE":"Was tramming mobile when his shoulder popped.","sourceDate":"2014-07-15"},{"SOURCE_ROW_NUMBER":"101216","DOCUMENT_NO":"220141540019","ACCIDENT_DT":"05/15/2014","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck against stationary object","OCCUPATION":"Supply man, Supply worker, Nipper","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"tramming scoop and jammed head into roof causing pain in neck","sourceDate":"2014-05-15"},{"SOURCE_ROW_NUMBER":"221809","DOCUMENT_NO":"220141430005","ACCIDENT_DT":"05/07/2014","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)","NO_INJURIES":"1","DAYS_LOST":"26","NARRATIVE":"Crawling back to move up bolter and twisted left knee.","sourceDate":"2014-05-07"},{"SOURCE_ROW_NUMBER":"140086","DOCUMENT_NO":"220140640014","ACCIDENT_DT":"02/18/2014","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)","NO_INJURIES":"1","DAYS_LOST":"4","NARRATIVE":"employee was putting supplies on his bolter, when he turned he felt a sharp pain in his knee","sourceDate":"2014-02-18"},{"SOURCE_ROW_NUMBER":"101215","DOCUMENT_NO":"220133540041","ACCIDENT_DT":"12/08/2013","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"Roof fall at 19 cross cut 5 belt across 2-4-5 entry.","sourceDate":"2013-12-08"},{"SOURCE_ROW_NUMBER":"269111","DOCUMENT_NO":"220130220058","ACCIDENT_DT":"01/11/2013","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Bull gang foreman, Labor foreman, Leadman, Section foreman, Shift boss","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Miner was dumping duster out of scoop bucket and had his hand on scoop kitchen and went to swing scoop and smashed his finger between stop and scoop frame.","sourceDate":"2013-01-11"},{"SOURCE_ROW_NUMBER":"157319","DOCUMENT_NO":"220122370039","ACCIDENT_DT":"08/21/2012","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"4","NARRATIVE":"Backing scoop and caught left hand between stop and kitchen. Smashed little finger and ring finger.","sourceDate":"2012-08-21"},{"SOURCE_ROW_NUMBER":"131252","DOCUMENT_NO":"220121500049","ACCIDENT_DT":"05/23/2012","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Miner was driving a pin on a piece of equipment and struck left hand hurting pinkie finger.","sourceDate":"2012-05-23"},{"SOURCE_ROW_NUMBER":"165936","DOCUMENT_NO":"220120830018","ACCIDENT_DT":"03/16/2012","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Miner was cleaning a gob out on outside screen with a rock bar when a rock fell striking the back of his left hand.","sourceDate":"2012-03-16"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2024-05-29","lastDate":"2024-05-29","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":685,"firstDate":"2006-06-05","lastDate":"2018-11-05","metrics":{"ss":176,"delinquent":681,"recentRows":0,"paidPenalty":178827,"proposedPenalty":213415,"currentAssessment":178827},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1750073","VIOLATION_NO":"9183466","ISSUE_DT":"11/05/2018","CFR_STANDARD_CD":"75.364(h)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"1749986","VIOLATION_NO":"9180198","ISSUE_DT":"08/06/2018","CFR_STANDARD_CD":"75.312(g)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-08-06"},{"SOURCE_ROW_NUMBER":"1749985","VIOLATION_NO":"9127519","ISSUE_DT":"07/31/2018","CFR_STANDARD_CD":"75.364(b)(4)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-07-31"},{"SOURCE_ROW_NUMBER":"1751511","VIOLATION_NO":"9180402","ISSUE_DT":"05/01/2018","CFR_STANDARD_CD":"75.202(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-05-01"},{"SOURCE_ROW_NUMBER":"1749549","VIOLATION_NO":"9128001","ISSUE_DT":"02/27/2018","CFR_STANDARD_CD":"77.208(e)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-02-27"},{"SOURCE_ROW_NUMBER":"1749548","VIOLATION_NO":"9127359","ISSUE_DT":"02/27/2018","CFR_STANDARD_CD":"75.202(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2018-02-27"},{"SOURCE_ROW_NUMBER":"1749658","VIOLATION_NO":"9125251","ISSUE_DT":"11/14/2017","CFR_STANDARD_CD":"75.333(d)(3)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"118.00","CURRENT_ASSESSMENT_AMT":"118.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-11-14"},{"SOURCE_ROW_NUMBER":"1751991","VIOLATION_NO":"9125802","ISSUE_DT":"06/13/2017","CFR_STANDARD_CD":"75.512-2","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-06-13"},{"SOURCE_ROW_NUMBER":"1751990","VIOLATION_NO":"9125801","ISSUE_DT":"06/13/2017","CFR_STANDARD_CD":"75.1714-3(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-06-13"},{"SOURCE_ROW_NUMBER":"1743205","VIOLATION_NO":"9124589","ISSUE_DT":"05/16/2017","CFR_STANDARD_CD":"75.333(d)(3)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-05-16"},{"SOURCE_ROW_NUMBER":"1742926","VIOLATION_NO":"9123185","ISSUE_DT":"01/24/2017","CFR_STANDARD_CD":"77.1110","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-01-24"},{"SOURCE_ROW_NUMBER":"1742925","VIOLATION_NO":"9123184","ISSUE_DT":"01/24/2017","CFR_STANDARD_CD":"77.502","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-01-24"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":157,"firstDate":"2009-04-02","lastDate":"2016-01-25","metrics":{"appeals":0,"decisions":157,"recentRows":0,"decisionPenalty":63338,"originalPenalty":97926},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"375934","VIOLATION_NO":"9082479","DOCKET_NO":"LAKE 2015-0636","DECISION_DT":"01/25/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1111.00","DECISION_PENALTY_AMT":"1111.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2016-01-25"},{"SOURCE_ROW_NUMBER":"375438","VIOLATION_NO":"9082480","DOCKET_NO":"LAKE 2015-0636","DECISION_DT":"01/25/2016","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"645.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2016-01-25"},{"SOURCE_ROW_NUMBER":"372807","VIOLATION_NO":"9082180","DOCKET_NO":"LAKE 2015-0478","DECISION_DT":"10/13/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1304.00","DECISION_PENALTY_AMT":"1304.00","JUDGE_FIRST_NAME":"Kenneth","JUDGE_LAST_NAME":"Andrews","sourceDate":"2015-10-13"},{"SOURCE_ROW_NUMBER":"370786","VIOLATION_NO":"8061546","DOCKET_NO":"LAKE 2015-0327","DECISION_DT":"08/19/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1304.00","DECISION_PENALTY_AMT":"1304.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2015-08-19"},{"SOURCE_ROW_NUMBER":"111824","VIOLATION_NO":"8061250","DOCKET_NO":"LAKE 2015-0216","DECISION_DT":"06/23/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"285.00","DECISION_PENALTY_AMT":"285.00","JUDGE_FIRST_NAME":"John","JUDGE_LAST_NAME":"Lewis","sourceDate":"2015-06-23"},{"SOURCE_ROW_NUMBER":"361994","VIOLATION_NO":"8297681","DOCKET_NO":"LAKE 2014-0638","DECISION_DT":"12/17/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"700.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-12-17"},{"SOURCE_ROW_NUMBER":"361993","VIOLATION_NO":"8054368","DOCKET_NO":"LAKE 2014-0638","DECISION_DT":"12/17/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"334.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-12-17"},{"SOURCE_ROW_NUMBER":"360438","VIOLATION_NO":"8297683","DOCKET_NO":"LAKE 2014-0548","DECISION_DT":"10/22/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"500.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-10-22"},{"SOURCE_ROW_NUMBER":"358970","VIOLATION_NO":"8054180","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"300.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-10-22"},{"SOURCE_ROW_NUMBER":"358910","VIOLATION_NO":"8054725","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"745.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-10-22"},{"SOURCE_ROW_NUMBER":"106676","VIOLATION_NO":"8054731","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2106.00","DECISION_PENALTY_AMT":"1500.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2014-10-22"},{"SOURCE_ROW_NUMBER":"354608","VIOLATION_NO":"8052010","DOCKET_NO":"LAKE 2014-0243","DECISION_DT":"07/09/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"634.00","DECISION_PENALTY_AMT":"507.00","JUDGE_FIRST_NAME":"Kenneth","JUDGE_LAST_NAME":"Andrews","sourceDate":"2014-07-09"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":806,"firstDate":"2006-07-06","lastDate":"2018-11-05","metrics":{"recentRows":0,"cpdmSamples":83,"voidSamples":226,"validSamples":580,"maxConcentration":10.467,"concentrationTotal":651.567},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1533637","CASS_NUM":"58306067","SMP_TAKEN_DT":"11/5/2018","CONC":".104","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"LABORER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"1173217","CASS_NUM":"58306882","SMP_TAKEN_DT":"11/5/2018","CONC":".259","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":"FORKLIFT OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"1063647","CASS_NUM":"58306963","SMP_TAKEN_DT":"11/5/2018","CONC":".191","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"LABORER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"814723","CASS_NUM":"58306962","SMP_TAKEN_DT":"11/5/2018","CONC":".038","SMP_TYPE_CD_DESC":"INTAKE AIR","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"263235","CASS_NUM":"58306060","SMP_TAKEN_DT":"11/5/2018","CONC":".054","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"MECHANIC","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"419729","CASS_NUM":"58307256","SMP_TAKEN_DT":"8/28/2018","CONC":".066","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":"FORKLIFT OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2018-08-28"},{"SOURCE_ROW_NUMBER":"713363","CASS_NUM":"58276878","SMP_TAKEN_DT":"6/6/2017","CONC":".016","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":"ELECTRICIAN","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2017-06-06"},{"SOURCE_ROW_NUMBER":"1844158","SMP_TAKEN_DT":"12/23/2016","CONC":".381","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2016-12-23"},{"SOURCE_ROW_NUMBER":"1673119","SMP_TAKEN_DT":"12/23/2016","CONC":".682","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2016-12-23"},{"SOURCE_ROW_NUMBER":"2780684","SMP_TAKEN_DT":"12/22/2016","CONC":".443","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2016-12-22"},{"SOURCE_ROW_NUMBER":"1928405","SMP_TAKEN_DT":"12/22/2016","CONC":".328","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2016-12-22"},{"SOURCE_ROW_NUMBER":"2865480","SMP_TAKEN_DT":"12/21/2016","CONC":".361","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"Sample Transmitted Late","OCC_CD_DESC":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CPDM","sourceDate":"2016-12-21"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":4,"firstDate":"2007-03-08","lastDate":"2007-12-12","metrics":{"linkedIssuances":4},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":157,"firstDate":"2007-10-23","lastDate":"2015-05-13","metrics":{"decisions":157,"ssChanged":46,"recentRows":0,"decisionPenalty":63338,"proposedPenalty":97926},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"436723","CITATION_NO":"9082479","CITATION_ISSUE_DT":"05/13/2015","DOCKET_NO":"LAKE 2015-0636","DECISION_DT":"01/25/2016","CFR_STANDARD_CODE":"75.1722(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1111.00","DECISION_PENALTY_AMT":"1111.00","sourceDate":"2015-05-13"},{"SOURCE_ROW_NUMBER":"36761","CITATION_NO":"9082480","CITATION_ISSUE_DT":"05/13/2015","DOCKET_NO":"LAKE 2015-0636","DECISION_DT":"01/25/2016","CFR_STANDARD_CODE":"75.512","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"645.00","sourceDate":"2015-05-13"},{"SOURCE_ROW_NUMBER":"206450","CITATION_NO":"9082180","CITATION_ISSUE_DT":"02/24/2015","DOCKET_NO":"LAKE 2015-0478","DECISION_DT":"10/13/2015","CFR_STANDARD_CODE":"75.321(a)(1)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1304.00","DECISION_PENALTY_AMT":"1304.00","sourceDate":"2015-02-24"},{"SOURCE_ROW_NUMBER":"260678","CITATION_NO":"8061546","CITATION_ISSUE_DT":"12/11/2014","DOCKET_NO":"LAKE 2015-0327","DECISION_DT":"08/19/2015","CFR_STANDARD_CODE":"75.517","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"1304.00","DECISION_PENALTY_AMT":"1304.00","sourceDate":"2014-12-11"},{"SOURCE_ROW_NUMBER":"378852","CITATION_NO":"8061250","CITATION_ISSUE_DT":"10/29/2014","DOCKET_NO":"LAKE 2015-0216","DECISION_DT":"06/23/2015","CFR_STANDARD_CODE":"75.1731(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"285.00","DECISION_PENALTY_AMT":"285.00","sourceDate":"2014-10-29"},{"SOURCE_ROW_NUMBER":"373386","CITATION_NO":"8054368","CITATION_ISSUE_DT":"05/28/2014","DOCKET_NO":"LAKE 2014-0638","DECISION_DT":"12/17/2014","CFR_STANDARD_CODE":"75.400","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"334.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2014-05-28"},{"SOURCE_ROW_NUMBER":"372978","CITATION_NO":"8297683","CITATION_ISSUE_DT":"04/28/2014","DOCKET_NO":"LAKE 2014-0548","DECISION_DT":"10/22/2014","CFR_STANDARD_CODE":"75.1722(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"500.00","sourceDate":"2014-04-28"},{"SOURCE_ROW_NUMBER":"264297","CITATION_NO":"8297681","CITATION_ISSUE_DT":"04/28/2014","DOCKET_NO":"LAKE 2014-0638","DECISION_DT":"12/17/2014","CFR_STANDARD_CODE":"75.360(b)(3)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"700.00","sourceDate":"2014-04-28"},{"SOURCE_ROW_NUMBER":"90559","CITATION_NO":"8054731","CITATION_ISSUE_DT":"03/26/2014","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","CFR_STANDARD_CODE":"75.340(a)(1)(i)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"2106.00","DECISION_PENALTY_AMT":"1500.00","sourceDate":"2014-03-26"},{"SOURCE_ROW_NUMBER":"430231","CITATION_NO":"8054725","CITATION_ISSUE_DT":"03/12/2014","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","CFR_STANDARD_CODE":"75.1725(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"745.00","sourceDate":"2014-03-12"},{"SOURCE_ROW_NUMBER":"207819","CITATION_NO":"8054180","CITATION_ISSUE_DT":"03/10/2014","DOCKET_NO":"LAKE 2014-0485","DECISION_DT":"10/22/2014","CFR_STANDARD_CODE":"75.606","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"745.00","DECISION_PENALTY_AMT":"300.00","sourceDate":"2014-03-10"},{"SOURCE_ROW_NUMBER":"374837","CITATION_NO":"8052010","CITATION_ISSUE_DT":"12/17/2013","DOCKET_NO":"LAKE 2014-0243","DECISION_DT":"07/09/2014","CFR_STANDARD_CODE":"77.1605(k)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"634.00","DECISION_PENALTY_AMT":"507.00","sourceDate":"2013-12-17"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":55,"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":19,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":2,"firstDate":"2006-02-27","lastDate":"2010-04-01","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":140,"firstDate":"2006-05-03","lastDate":"2019-03-14","metrics":{"inspectors":295,"recentRows":0,"onSiteHours":4770.25,"inspectionHours":9505.25,"inspectionSamples":725},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"661440","EVENT_NO":"6279205","INSPECTION_BEGIN_DT":"03/14/2019","INSPECTION_END_DT":"03/15/2019","ACTIVITY_CODE":"E21","ACTIVITY":"Ventilation Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.5","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2019-03-14"},{"SOURCE_ROW_NUMBER":"261150","EVENT_NO":"6276531","INSPECTION_BEGIN_DT":"01/07/2019","INSPECTION_END_DT":"03/28/2019","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2019-01-07"},{"SOURCE_ROW_NUMBER":"126997","EVENT_NO":"6279125","INSPECTION_BEGIN_DT":"11/28/2018","INSPECTION_END_DT":"11/28/2018","ACTIVITY_CODE":"E20","ACTIVITY":"Roof Control Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"3.5","sourceDate":"2018-11-28"},{"SOURCE_ROW_NUMBER":"171060","EVENT_NO":"6276053","INSPECTION_BEGIN_DT":"10/01/2018","INSPECTION_END_DT":"12/27/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"66","SUM_TOTAL_ON_SITE_HOURS":"28","sourceDate":"2018-10-01"},{"SOURCE_ROW_NUMBER":"1050932","EVENT_NO":"6276037","INSPECTION_BEGIN_DT":"07/01/2018","INSPECTION_END_DT":"09/26/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"107.75","SUM_TOTAL_ON_SITE_HOURS":"48.5","sourceDate":"2018-07-01"},{"SOURCE_ROW_NUMBER":"686781","EVENT_NO":"6277748","INSPECTION_BEGIN_DT":"05/14/2018","INSPECTION_END_DT":"05/16/2018","ACTIVITY_CODE":"E20","ACTIVITY":"Roof Control Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2018-05-14"},{"SOURCE_ROW_NUMBER":"453913","EVENT_NO":"6276582","INSPECTION_BEGIN_DT":"04/02/2018","INSPECTION_END_DT":"06/28/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"4","SUM_TOTAL_INSP_HOURS":"80.25","SUM_TOTAL_ON_SITE_HOURS":"33","sourceDate":"2018-04-02"},{"SOURCE_ROW_NUMBER":"757529","EVENT_NO":"6277583","INSPECTION_BEGIN_DT":"03/13/2018","INSPECTION_END_DT":"03/13/2018","ACTIVITY_CODE":"E19","ACTIVITY":"Electrical Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2018-03-13"},{"SOURCE_ROW_NUMBER":"542053","EVENT_NO":"6277269","INSPECTION_BEGIN_DT":"01/23/2018","INSPECTION_END_DT":"02/27/2018","ACTIVITY_CODE":"E21","ACTIVITY":"Ventilation Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2018-01-23"},{"SOURCE_ROW_NUMBER":"476405","EVENT_NO":"6275898","INSPECTION_BEGIN_DT":"01/02/2018","INSPECTION_END_DT":"03/27/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"51.25","SUM_TOTAL_ON_SITE_HOURS":"24","sourceDate":"2018-01-02"},{"SOURCE_ROW_NUMBER":"291071","EVENT_NO":"6276087","INSPECTION_BEGIN_DT":"12/07/2017","INSPECTION_END_DT":"12/19/2017","ACTIVITY_CODE":"E20","ACTIVITY":"Roof Control Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2017-12-07"},{"SOURCE_ROW_NUMBER":"37313","EVENT_NO":"6273678","INSPECTION_BEGIN_DT":"11/03/2017","INSPECTION_END_DT":"12/29/2017","ACTIVITY_CODE":"E17","ACTIVITY":"Special Emphasis Programs","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.25","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2017-11-03"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":136,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2019-Q1":{"hours":1821,"employees":3,"production":0},"2018-Q4":{"hours":2407,"employees":5,"production":0},"2018-Q3":{"hours":1544,"employees":2,"production":0},"2018-Q2":{"hours":234,"employees":2,"production":0},"2018-Q1":{"hours":658,"employees":2,"production":0},"2017-Q4":{"hours":830,"employees":2,"production":0},"2017-Q3":{"hours":1793,"employees":8,"production":0},"2017-Q2":{"hours":1624,"employees":14,"production":0},"2017-Q1":{"hours":1102,"employees":3,"production":1392},"2016-Q4":{"hours":7274,"employees":14,"production":26443},"2016-Q3":{"hours":6378,"employees":14,"production":16367},"2016-Q2":{"hours":3380,"employees":6,"production":18952}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":33,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2010":{"hours":105830,"employees":46,"production":176487},"2011":{"hours":100501,"employees":40,"production":161591},"2012":{"hours":69624,"employees":36,"production":217765},"2013":{"hours":71438,"employees":36,"production":282283},"2014":{"hours":77518,"employees":35,"production":339203},"2015":{"hours":49886,"employees":26,"production":184562},"2016":{"hours":23170,"employees":13,"production":92519},"2017":{"hours":5349,"employees":8,"production":1392},"2018":{"hours":4843,"employees":3,"production":0},"2019":{"hours":1821,"employees":3,"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":100,"firstDate":"2006-07-06","lastDate":"2018-11-05","metrics":{"recentRows":0,"doseOver100":14,"actDoseTotal":6158,"pelDoseTotal":4474},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"132941","EVENT_NO":"6276053","SURVEY_DATE":"11/05/2018","OCCUPATION_CD_DESC":"LABORER","MACHINE_CD":"40","MANUFACTURER_CD":"120","ACT_DOSE_85":"11","PEL_DOSE_90":"3","SURVEY_TYPE":"I","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"132940","EVENT_NO":"6276053","SURVEY_DATE":"11/05/2018","OCCUPATION_CD_DESC":"MECHANIC","MACHINE_CD":"40","MANUFACTURER_CD":"120","ACT_DOSE_85":"109","PEL_DOSE_90":"7","SURVEY_TYPE":"I","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"132939","EVENT_NO":"6276053","SURVEY_DATE":"11/05/2018","OCCUPATION_CD_DESC":"LABORER","MACHINE_CD":"40","MANUFACTURER_CD":"120","ACT_DOSE_85":"9","PEL_DOSE_90":"6","SURVEY_TYPE":"I","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"132938","EVENT_NO":"6276053","SURVEY_DATE":"11/05/2018","OCCUPATION_CD_DESC":"LABORER","MACHINE_CD":"40","MANUFACTURER_CD":"120","ACT_DOSE_85":"18","PEL_DOSE_90":"14","SURVEY_TYPE":"I","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"132937","EVENT_NO":"6276053","SURVEY_DATE":"11/05/2018","OCCUPATION_CD_DESC":"FORKLIFT OPERATOR","MACHINE_CD":"17","MANUFACTURER_CD":"017","ACT_DOSE_85":"13","PEL_DOSE_90":"6","SURVEY_TYPE":"I","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"132936","EVENT_NO":"6276037","SURVEY_DATE":"08/28/2018","OCCUPATION_CD_DESC":"FORKLIFT OPERATOR","MACHINE_CD":"17","MANUFACTURER_CD":"017","ACT_DOSE_85":"5","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2018-08-28"},{"SOURCE_ROW_NUMBER":"132935","EVENT_NO":"6276037","SURVEY_DATE":"08/20/2018","OCCUPATION_CD_DESC":"LABORER","MACHINE_CD":"38","MANUFACTURER_CD":"018","ACT_DOSE_85":"20","PEL_DOSE_90":"2","SURVEY_TYPE":"I","sourceDate":"2018-08-20"},{"SOURCE_ROW_NUMBER":"132934","EVENT_NO":"6276037","SURVEY_DATE":"08/20/2018","OCCUPATION_CD_DESC":"BULLGANG FOREMAN/LABOR FOREMAN","MACHINE_CD":"40","MANUFACTURER_CD":"119","ACT_DOSE_85":"12","PEL_DOSE_90":"5","SURVEY_TYPE":"I","sourceDate":"2018-08-20"},{"SOURCE_ROW_NUMBER":"132933","EVENT_NO":"6273647","SURVEY_DATE":"06/06/2017","OCCUPATION_CD_DESC":"ELECTRICIAN","MACHINE_CD":"40","MANUFACTURER_CD":"119","ACT_DOSE_85":"41","PEL_DOSE_90":"19","SURVEY_TYPE":"I","sourceDate":"2017-06-06"},{"SOURCE_ROW_NUMBER":"132925","EVENT_NO":"6273209","SURVEY_DATE":"09/13/2016","OCCUPATION_CD_DESC":"DISPATCHER","ACT_DOSE_85":"15","PEL_DOSE_90":"11","SURVEY_TYPE":"I","sourceDate":"2016-09-13"},{"SOURCE_ROW_NUMBER":"132924","EVENT_NO":"6273209","SURVEY_DATE":"09/13/2016","OCCUPATION_CD_DESC":"HIGHLIFT OPERATOR/FRONT END LOADER","MACHINE_CD":"18","MANUFACTURER_CD":"018","ACT_DOSE_85":"10","PEL_DOSE_90":"5","SURVEY_TYPE":"I","sourceDate":"2016-09-13"},{"SOURCE_ROW_NUMBER":"132932","EVENT_NO":"6273209","SURVEY_DATE":"08/23/2016","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"80","PEL_DOSE_90":"59","SURVEY_TYPE":"I","sourceDate":"2016-08-23"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":19,"firstDate":"2006-12-04","lastDate":"2016-12-12","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":6.7,"validSamples":19,"quartzPctTotal":60.9},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"63977","CASSETTE_NO":"58276599","SAMPLE_DT":"12/12/2016","QUARTZ_PCT":"03.4","QUARTZ_MICROGRAMS":"30","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2016-12-12"},{"SOURCE_ROW_NUMBER":"85675","CASSETTE_NO":"58253353","SAMPLE_DT":"09/07/2016","QUARTZ_PCT":"02.7","QUARTZ_MICROGRAMS":"25","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2016-09-07"},{"SOURCE_ROW_NUMBER":"125708","CASSETTE_NO":"58218727","SAMPLE_DT":"12/15/2015","QUARTZ_PCT":"02.7","QUARTZ_MICROGRAMS":"17","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2015-12-15"},{"SOURCE_ROW_NUMBER":"55559","CASSETTE_NO":"58218762","SAMPLE_DT":"09/09/2015","QUARTZ_PCT":"06.7","QUARTZ_MICROGRAMS":"57","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2015-09-09"},{"SOURCE_ROW_NUMBER":"84503","CASSETTE_NO":"58202980","SAMPLE_DT":"06/09/2015","QUARTZ_PCT":"03.6","QUARTZ_MICROGRAMS":"17","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2015-06-09"},{"SOURCE_ROW_NUMBER":"49169","CASSETTE_NO":"58186649","SAMPLE_DT":"11/17/2014","QUARTZ_PCT":"03.3","QUARTZ_MICROGRAMS":"48","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2014-11-17"},{"SOURCE_ROW_NUMBER":"51933","CASSETTE_NO":"58177047","SAMPLE_DT":"08/12/2014","QUARTZ_PCT":"03.5","QUARTZ_MICROGRAMS":"27","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2014-08-12"},{"SOURCE_ROW_NUMBER":"89864","CASSETTE_NO":"58005445","SAMPLE_DT":"05/01/2013","QUARTZ_PCT":"03.1","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2013-05-01"},{"SOURCE_ROW_NUMBER":"36712","CASSETTE_NO":"58003930","SAMPLE_DT":"02/19/2013","QUARTZ_PCT":"03.6","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2013-02-19"},{"SOURCE_ROW_NUMBER":"92230","CASSETTE_NO":"57994241","SAMPLE_DT":"11/14/2012","QUARTZ_PCT":"03.2","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2012-11-14"},{"SOURCE_ROW_NUMBER":"64055","CASSETTE_NO":"57904601","SAMPLE_DT":"03/01/2011","QUARTZ_PCT":"02.8","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2011-03-01"},{"SOURCE_ROW_NUMBER":"58552","CASSETTE_NO":"57904633","SAMPLE_DT":"02/15/2011","QUARTZ_PCT":"02.1","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2011-02-15"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":694,"firstDate":"2006-06-05","lastDate":"2018-11-05","metrics":{"ss":177,"amountDue":178827,"contested":103,"amountPaid":178827,"recentRows":0,"section104d":6,"unterminated":1,"proposedPenalty":213415},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1771236","VIOLATION_NO":"9183466","VIOLATION_ISSUE_DT":"11/05/2018","SIG_SUB":"N","PART_SECTION":"75.364(h)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"11/05/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-11-05"},{"SOURCE_ROW_NUMBER":"1771019","VIOLATION_NO":"9180198","VIOLATION_ISSUE_DT":"08/06/2018","SIG_SUB":"N","PART_SECTION":"75.312(g)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/06/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-08-06"},{"SOURCE_ROW_NUMBER":"1771018","VIOLATION_NO":"9127519","VIOLATION_ISSUE_DT":"07/31/2018","SIG_SUB":"N","PART_SECTION":"75.364(b)(4)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/05/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-07-31"},{"SOURCE_ROW_NUMBER":"1770845","VIOLATION_NO":"9180402","VIOLATION_ISSUE_DT":"05/01/2018","SIG_SUB":"N","PART_SECTION":"75.202(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"05/08/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-05-01"},{"SOURCE_ROW_NUMBER":"1770659","VIOLATION_NO":"9128001","VIOLATION_ISSUE_DT":"02/27/2018","SIG_SUB":"N","PART_SECTION":"77.208(e)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/27/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-02-27"},{"SOURCE_ROW_NUMBER":"1770658","VIOLATION_NO":"9127359","VIOLATION_ISSUE_DT":"02/27/2018","SIG_SUB":"N","PART_SECTION":"75.202(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"02/27/2018","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2018-02-27"},{"SOURCE_ROW_NUMBER":"1771257","VIOLATION_NO":"9125251","VIOLATION_ISSUE_DT":"11/14/2017","SIG_SUB":"N","PART_SECTION":"75.333(d)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"11/14/2017","PROPOSED_PENALTY":"118","AMOUNT_DUE":"118","AMOUNT_PAID":"118","CONTESTED_IND":"N","sourceDate":"2017-11-14"},{"SOURCE_ROW_NUMBER":"1770927","VIOLATION_NO":"9125802","VIOLATION_ISSUE_DT":"06/13/2017","SIG_SUB":"N","PART_SECTION":"75.512-2","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/20/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-06-13"},{"SOURCE_ROW_NUMBER":"1770926","VIOLATION_NO":"9125801","VIOLATION_ISSUE_DT":"06/13/2017","SIG_SUB":"N","PART_SECTION":"75.1714-3(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/20/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-06-13"},{"SOURCE_ROW_NUMBER":"1770852","VIOLATION_NO":"9124589","VIOLATION_ISSUE_DT":"05/16/2017","SIG_SUB":"N","PART_SECTION":"75.333(d)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/20/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-05-16"},{"SOURCE_ROW_NUMBER":"1770804","VIOLATION_NO":"9123185","VIOLATION_ISSUE_DT":"01/24/2017","SIG_SUB":"N","PART_SECTION":"77.1110","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"01/24/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-01-24"},{"SOURCE_ROW_NUMBER":"1770803","VIOLATION_NO":"9123184","VIOLATION_ISSUE_DT":"01/24/2017","SIG_SUB":"N","PART_SECTION":"77.502","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"01/24/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-01-24"}]}],"safety":{"href":"/api/v1/mines/3304565/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3304565/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 75.364","heading":"Weekly examination.","id":"75.364","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364","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) Worked-out areas. (1) At least every 7 days, a certified person shall examine unsealed worked-out areas where no pillars have been recovered by traveling to the area of deepest penetration; measuring methane and oxygen concentrations and air quantities and making tests to determine if the air is moving in the proper direction in the area. The locations of measurement points where tests and measurements will be performed shall be included in the mine ventilation plan and shall be adequate in number and location to assure ventilation and air quality in the area. Air quantity measurements shall also be made where the air enters and leaves the worked-out area. An alternative method of evaluating the ventilation of the area may be approved in the ventilation plan.\n\n(2) At least every 7 days, a certified person shall evaluate the effectiveness of bleeder systems required by § 75.334 as follows:\n\n(i) Measurements of methane and oxygen concentrations and air quantity and a test to determine if the air is moving in its proper direction shall be made where air enters the worked-out area.\n\n(ii) Measurements of methane and oxygen concentrations and air quantity and a test to determine if the air is moving in the proper direction shall be made immediately before the air enters a return split of air.\n\n(iii) At least one entry of each set of bleeder entries used as part of a bleeder system under § 75.334 shall be traveled in its entirety. Measurements of methane and oxygen concentrations and air quantities and a test to determine if the air is moving in the proper direction shall be made at the measurement point locations specified in the mine ventilation plan to determine the effectiveness of the bleeder system.\n\n(iv) In lieu of the requirements of paragraphs (a)(2)(i) and (iii) of this section, an alternative method of evaluation may be specified in the ventilation plan provided the alternative method results in proper evaluation of the effectiveness of the bleeder system.\n\n(b) Hazardous conditions and violations of mandatory health or safety standards. At least every 7 days, an examination for hazardous conditions and violations of the mandatory health or safety standards referenced in paragraph (b)(8) of this section shall be made by a certified person designated by the operator at the following locations:\n\n(1) In at least one entry of each intake air course, in its entirety, so that the entire air course is traveled.\n\n(2) In at least one entry of each return air course, in its entirety, so that the entire air course is traveled.\n\n(3) In each longwall or shortwall travelway in its entirety, so that the entire travelway is traveled.\n\n(4) At each seal along return and bleeder air courses and at each seal along intake air courses not examined under § 75.360(b)(5).\n\n(5) In each escapeway so that the entire escapeway is traveled.\n\n(6) On each working section not examined under § 75.360(b)(3) during the previous 7 days.\n\n(7) At each water pump not examined during a preshift examination conducted during the previous 7 days.\n\n(8) Weekly examinations shall include examinations to identify violations of the standards listed below:\n\n(i) §§ 75.202(a) and 75.220(a)(1)—roof control;\n\n(ii) §§ 75.333(h) and 75.370(a)(1)—ventilation, methane;\n\n(iii) §§ 75.400 and 75.403—accumulations of combustible materials and application of rock dust; and\n\n(iv) § 75.1403—maintenance of off track haulage roadways, and track haulage, track switches, and other components for haulage;\n\n(v) § 75.1722(a)—guarding moving machine parts; and\n\n(vi) § 75.1731(a)—maintenance of belt conveyor components.\n\n(c) Measurements and tests. At least every 7 days, a certified person shall—\n\n(1) Determine the volume of air entering the main intakes and in each intake split;\n\n(2) Determine the volume of air and test for methane in the last open crosscut in any pair or set of developing entries or rooms, in the return of each split of air immediately before it enters the main returns, and where the air leaves the main returns; and\n\n(3) Test for methane in the return entry nearest each set of seals immediately after the air passes the seals.\n\n(d) Hazardous conditions shall be corrected immediately. If the condition creates an imminent danger, everyone except those persons referred to in section 104(c) of the Act shall be withdrawn from the area affected to a safe area until the hazardous condition is corrected. Any violation of the nine mandatory health or safety standards found during a weekly examination shall be corrected.\n\n(e) The weekly examination may be conducted at the same time as the preshift or on-shift examinations.\n\n(f) (1) The weekly examination is not required during any 7 day period in which no one enters any underground area of the mine.\n\n(2) Except for certified persons required to make examinations, no one shall enter any underground area of the mine if a weekly examination has not been completed within the previous 7 days.\n\n(g) Certification. The person making the weekly examinations shall certify by initials, date, and the time that the examination was made. Certifications and times shall appear at enough locations to show that the entire area has been examined.\n\n(h) Recordkeeping. At the completion of any shift during which a portion of a weekly examination is conducted, a record of the results of each weekly examination, including a record of hazardous conditions and violations of the nine mandatory health or safety standards found during each examination and their locations, the corrective action taken, and the results and location of air and methane measurements, shall be made. The results of methane tests shall be recorded as the percentage of methane measured by the examiner. The record shall be made by the person making the examination or a person designated by the operator. If made by a person other than the examiner, the examiner shall verify the record by initials and date by or at the end of the shift for which the examination was made. The record shall be countersigned by the mine foreman or equivalent mine official by the end of the mine foreman's or equivalent mine official's next regularly scheduled working shift. The records required by this section shall be made in a secure book that is not susceptible to alteration or electronically in a computer system so as to be secure and not susceptible to alteration.\n\n(i) Retention period. Records shall be retained at a surface location at the mine for at least 1 year and shall be made available for inspection by authorized representatives of the Secretary and the representative of miners.\n\n[61 FR 9829, Mar. 11, 1996, as amended at 77 FR 20715, Apr. 6, 2012]","occurrenceCount":2},{"chapter":"I","heading":"Main mine fan examinations and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.312","part":"75","subchapter":"O","subpart":"D","id":"75.312","citation":"30 CFR 75.312","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"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":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.208","heading":"Storage of materials.","id":"77.208","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.208","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":"C","subpartHeading":"Subpart C—Surface Installations","text":"(a) Materials shall be stored and stacked in a manner which minimizes stumbling or fall-of-material hazards.\n\n(b) Materials that can create hazards if accidentally liberated from their containers shall be stored in a manner that minimizes the dangers.\n\n(c) Containers holding hazardous materials must be of a type approved for such use by recognized agencies.\n\n(d) Compressed and liquid gas cylinders shall be secured in a safe manner.\n\n(e) Valves on compressed gas cylinders shall be protected by covers when being transported or stored, and by a safe location when the cylinders are in use.\n\n[36 FR 9364, May 22, 1971, as amended at 67 FR 42389, June 21, 2002]","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 75.512-2","heading":"Frequency of examinations.","id":"75.512-2","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512-2","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":"The examinations and tests required by § 75.512 shall be made at least weekly. Permissible equipment shall be examined to see that it is in permissible condition.","occurrenceCount":1},{"chapter":"I","heading":"Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-3","part":"75","subchapter":"O","subpart":"R","id":"75.1714-3","citation":"30 CFR 75.1714-3","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1110","heading":"Examination and maintenance of firefighting equipment.","id":"77.1110","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110","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":"L","subpartHeading":"Subpart L—Fire Protection","text":"Firefighting equipment shall be continuously maintained in a usable and operative condition. Fire extinguishers shall be examined at least once every 6 months and the date of such examination shall be recorded on a permanent tag attached to the extinguisher.\n\n(Pub. L. No. 96-511, 94 Stat. 2812 (44 U.S.C. 3501 et seq.))\n\n[36 FR 9364, May 22, 1971, 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 77.502","heading":"Electric equipment; examination, testing, and maintenance.","id":"77.502","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502","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":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"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.","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"3304565","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}