{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4407179","name":"#2","status":"Abandoned and Sealed","status_date":"2011-01-28","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"VA","county":"Buchanan","nearest_town":"GRUNDY","operator_id":"0056178","operator_name":"Tech Leasing & Rebuild, LLC","controller_id":"0095015","controller_name":"Elizabeth K  Justus-Dickenson","district":"C05","office":"Vansant VA Field Office","employees":0,"latitude":37.290277,"longitude":-82.186388},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":2539},"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":"4407179","name":"#2"},"operator":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"controller":{"type":"controller","id":"0095015","name":"Elizabeth K  Justus-Dickenson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2001-08-01","validTo":"2006-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|C13340|2001-08-01|2006-02-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15662","name":"Jeffrey K  Justus et al"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2004-12-21","validTo":"2007-04-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|C15662|2004-12-21|2007-04-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2006-02-10","validTo":"2009-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|C00375|2006-02-10|2009-04-29"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2006-06-15","validTo":"2006-10-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|P24715|2006-06-15|2006-10-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00375","name":"United  Company"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2006-06-15","validTo":"2006-10-01","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|P24715|2006-06-15|C00375|2006-02-10|46781"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13340","name":"Kenneth L  Stacy"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2006-06-15","validTo":"2006-02-09","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|P24715|2006-06-15|C13340|2001-08-01|89343"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2006-10-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0056178|2006-10-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15662","name":"Jeffrey K  Justus et al"},"object":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"validFrom":"2006-10-02","validTo":"2007-04-23","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0056178|2006-10-02|C15662|2004-12-21|96447"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0067371","name":"Dennis  Daniels"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2007-04-24","validTo":"2007-12-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0067371|2007-04-24|2007-12-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0067371","name":"Dennis  Daniels"},"object":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"validFrom":"2007-04-24","validTo":"2007-12-02","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0056178|2006-10-02|0067371|2007-04-24|9434"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0072191","name":"Willard H.  Cook"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2007-12-03","validTo":"2010-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0072191|2007-12-03|2010-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0072191","name":"Willard H.  Cook"},"object":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"validFrom":"2007-12-03","validTo":"2010-06-30","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0056178|2006-10-02|0072191|2007-12-03|11158"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2009-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0085453|2009-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085453","name":"Metinvest B V"},"object":{"type":"operator","id":"P24715","name":"Surface Minerals Company"},"validFrom":"2009-04-30","validTo":"2006-10-01","current":false,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|P24715|2006-06-15|0085453|2009-04-30|13579"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0095015","name":"Elizabeth K  Justus-Dickenson"},"object":{"type":"mine","id":"4407179","name":"#2"},"validFrom":"2010-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0095015|2010-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0095015","name":"Elizabeth K  Justus-Dickenson"},"object":{"type":"operator","id":"0056178","name":"Tech Leasing & Rebuild, LLC"},"validFrom":"2010-07-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4407179","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4407179|0056178|2006-10-02|0095015|2010-07-01|15659"}}],"coverage":{"historyRecords":7,"edgeCount":16,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":11,"firstDate":"2007-04-16","lastDate":"2010-10-29","metrics":{"daysLost":319,"injuries":6,"fatalities":0,"recentRows":0,"restrictedDays":5,"contractorRecords":1},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"252864","DOCUMENT_NO":"220103090030","ACCIDENT_DT":"10/29/2010","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 in area that was timbered off and dangered off.","sourceDate":"2010-10-29"},{"SOURCE_ROW_NUMBER":"85069","DOCUMENT_NO":"220102880049","ACCIDENT_DT":"10/02/2010","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 in idle area outby","sourceDate":"2010-10-02"},{"SOURCE_ROW_NUMBER":"235696","DOCUMENT_NO":"220102800034","ACCIDENT_DT":"09/22/2010","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 discovered in entry adjacent to primary escapeway.","sourceDate":"2010-09-22"},{"SOURCE_ROW_NUMBER":"261582","DOCUMENT_NO":"220102880048","ACCIDENT_DT":"08/16/2010","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 in face area, slick side, high angular.","sourceDate":"2010-08-16"},{"SOURCE_ROW_NUMBER":"102071","DOCUMENT_NO":"220101900026","ACCIDENT_DT":"06/30/2010","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Shuttle car operator, Mantrip operator, Ramcar operator, Rail runner, Buggy operator","NO_INJURIES":"1","DAYS_LOST":"250","NARRATIVE":"Jack set to change tire mantrip fell on victim's hand. Victim changing tire on mantrip and let the jack down with his hand under the ride.","sourceDate":"2010-06-30"},{"SOURCE_ROW_NUMBER":"261581","DOCUMENT_NO":"220101650050","ACCIDENT_DT":"06/04/2010","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against stationary object","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"10","NARRATIVE":"The employee was driving permissible man trip - hit an idle tail piece and lost control and was thrown from man trip.","sourceDate":"2010-06-04"},{"SOURCE_ROW_NUMBER":"239995","DOCUMENT_NO":"220091530065","ACCIDENT_DT":"05/19/2009","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck by powered moving object","OCCUPATION":"Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"45","NARRATIVE":"Victim backed into by personnel ride.","sourceDate":"2009-05-19"},{"SOURCE_ROW_NUMBER":"16270","DOCUMENT_NO":"220081820087","ACCIDENT_DT":"06/21/2008","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"MACHINERY","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"Injury of victim's finger due to placing hand on top of drill head of bolter.","sourceDate":"2008-06-21"},{"SOURCE_ROW_NUMBER":"235695","DOCUMENT_NO":"220081820085","ACCIDENT_DT":"06/19/2008","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"STRIKING OR BUMPING","ACCIDENT_TYPE":"Struck against stationary object","OCCUPATION":"Shuttle car operator, Mantrip operator, Ramcar operator, Rail runner, Buggy operator","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Victim struck head on belt hanger.","sourceDate":"2008-06-19"},{"SOURCE_ROW_NUMBER":"93533","DOCUMENT_NO":"220071340048","ACCIDENT_DT":"05/04/2007","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall onto or against objects","OCCUPATION":"Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"11","NARRATIVE":"EE a general laborer was helping move a mining machine when the cable that was hanging from the top fell on his back & neck knocking him against the rib.","sourceDate":"2007-05-04"},{"SOURCE_ROW_NUMBER":"184031","DOCUMENT_NO":"220071160029","ACCIDENT_DT":"04/16/2007","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"INUNDATION","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"Heavy rain flooded section of mine covering bolter and shuttle car with water. No reportable injuries.","sourceDate":"2007-04-16"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2011-01-28","lastDate":"2011-01-28","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":543,"firstDate":"2006-11-21","lastDate":"2010-11-02","metrics":{"ss":142,"delinquent":543,"recentRows":0,"paidPenalty":123698.32,"proposedPenalty":484874,"currentAssessment":474625},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1350258","VIOLATION_NO":"8176041","ISSUE_DT":"11/02/2010","CFR_STANDARD_CD":"75.1200(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-11-02"},{"SOURCE_ROW_NUMBER":"1350257","VIOLATION_NO":"8176039","ISSUE_DT":"10/29/2010","CFR_STANDARD_CD":"75.1200(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-29"},{"SOURCE_ROW_NUMBER":"1350256","VIOLATION_NO":"8176033","ISSUE_DT":"10/26/2010","CFR_STANDARD_CD":"77.508-1","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-26"},{"SOURCE_ROW_NUMBER":"1350263","VIOLATION_NO":"8176433","ISSUE_DT":"10/21/2010","CFR_STANDARD_CD":"75.364(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Order","PROPOSED_PENALTY_AMT":"4000.00","CURRENT_ASSESSMENT_AMT":"4000.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-21"},{"SOURCE_ROW_NUMBER":"1350262","VIOLATION_NO":"8176432","ISSUE_DT":"10/21/2010","CFR_STANDARD_CD":"75.364(a)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Order","PROPOSED_PENALTY_AMT":"4000.00","CURRENT_ASSESSMENT_AMT":"4000.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-21"},{"SOURCE_ROW_NUMBER":"1350266","VIOLATION_NO":"8179133","ISSUE_DT":"10/20/2010","CFR_STANDARD_CD":"75.1725(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"162.00","CURRENT_ASSESSMENT_AMT":"162.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"1350265","VIOLATION_NO":"8179132","ISSUE_DT":"10/20/2010","CFR_STANDARD_CD":"75.362(d)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"1350261","VIOLATION_NO":"8176430","ISSUE_DT":"10/15/2010","CFR_STANDARD_CD":"75.364(b)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Order","PROPOSED_PENALTY_AMT":"4000.00","CURRENT_ASSESSMENT_AMT":"4000.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-15"},{"SOURCE_ROW_NUMBER":"1350260","VIOLATION_NO":"8176201","ISSUE_DT":"10/14/2010","CFR_STANDARD_CD":"75.370(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"1350259","VIOLATION_NO":"8176200","ISSUE_DT":"10/14/2010","CFR_STANDARD_CD":"72.630(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"1350255","VIOLATION_NO":"8176031","ISSUE_DT":"10/14/2010","CFR_STANDARD_CD":"75.400","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"540.00","CURRENT_ASSESSMENT_AMT":"540.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"1350254","VIOLATION_NO":"8176030","ISSUE_DT":"10/13/2010","CFR_STANDARD_CD":"75.1103-1(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"108.00","CURRENT_ASSESSMENT_AMT":"108.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-10-13"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":350,"firstDate":"2008-12-01","lastDate":"2014-05-07","metrics":{"appeals":0,"decisions":350,"recentRows":0,"decisionPenalty":407350,"originalPenalty":417699},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"303976","VIOLATION_NO":"8179125","DOCKET_NO":"VA 2011-555","DECISION_DT":"05/07/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"125100.00","DECISION_PENALTY_AMT":"125100.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2014-05-07"},{"SOURCE_ROW_NUMBER":"303909","VIOLATION_NO":"8179123","DOCKET_NO":"VA 2011-555","DECISION_DT":"05/07/2014","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"125100.00","DECISION_PENALTY_AMT":"125100.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2014-05-07"},{"SOURCE_ROW_NUMBER":"39401","VIOLATION_NO":"8157659","DOCKET_NO":"VA 2009-286","DECISION_DT":"12/27/2012","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"127.00","DECISION_PENALTY_AMT":"127.00","JUDGE_FIRST_NAME":"Jerold","JUDGE_LAST_NAME":"Feldman","sourceDate":"2012-12-27"},{"SOURCE_ROW_NUMBER":"300224","VIOLATION_NO":"8177501","DOCKET_NO":"VA 2011-347","DECISION_DT":"12/18/2012","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"51900.00","DECISION_PENALTY_AMT":"51900.00","JUDGE_FIRST_NAME":"Priscilla","JUDGE_LAST_NAME":"Rae","sourceDate":"2012-12-18"},{"SOURCE_ROW_NUMBER":"296818","VIOLATION_NO":"8176228","DOCKET_NO":"VA 2011-281","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2161.00","DECISION_PENALTY_AMT":"2161.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"294120","VIOLATION_NO":"8179124","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"162.00","DECISION_PENALTY_AMT":"162.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"294119","VIOLATION_NO":"8176031","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"540.00","DECISION_PENALTY_AMT":"540.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"294118","VIOLATION_NO":"8176227","DOCKET_NO":"VA 2011-175","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"13600.00","DECISION_PENALTY_AMT":"13600.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"293844","VIOLATION_NO":"8179132","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"293843","VIOLATION_NO":"8179128","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"634.00","DECISION_PENALTY_AMT":"634.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"293842","VIOLATION_NO":"8176434","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"},{"SOURCE_ROW_NUMBER":"293841","VIOLATION_NO":"8176026","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"108.00","DECISION_PENALTY_AMT":"108.00","JUDGE_FIRST_NAME":"James","JUDGE_LAST_NAME":"Gilbert","sourceDate":"2012-10-15"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":302,"firstDate":"2006-12-20","lastDate":"2010-10-14","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":35,"validSamples":267,"maxConcentration":13.452,"concentrationTotal":137.429},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"647326","CASS_NUM":"57888518","SMP_TAKEN_DT":"10/14/2010","CONC":".077","SMP_TYPE_CD_DESC":"DESIGNATED AREA","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":"2010-10-14"},{"SOURCE_ROW_NUMBER":"433773","CASS_NUM":"57888514","SMP_TAKEN_DT":"10/14/2010","CONC":".245","SMP_TYPE_CD_DESC":"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":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"432452","CASS_NUM":"57888541","SMP_TAKEN_DT":"10/14/2010","CONC":".158","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":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"403151","CASS_NUM":"57888517","SMP_TAKEN_DT":"10/14/2010","CONC":".158","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":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"326552","CASS_NUM":"57888494","SMP_TAKEN_DT":"10/14/2010","CONC":".13","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":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"262946","CASS_NUM":"57888558","SMP_TAKEN_DT":"10/14/2010","CONC":".28","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":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"219588","CASS_NUM":"57888553","SMP_TAKEN_DT":"10/14/2010","CONC":".241","SMP_TYPE_CD_DESC":"DESIGNATED AREA","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":"2010-10-14"},{"SOURCE_ROW_NUMBER":"171927","CASS_NUM":"57888511","SMP_TAKEN_DT":"10/14/2010","CONC":".086","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":"2010-10-14"},{"SOURCE_ROW_NUMBER":"1059286","CASS_NUM":"51062076","SMP_TAKEN_DT":"9/21/2010","CONC":".421","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-09-21"},{"SOURCE_ROW_NUMBER":"1544588","CASS_NUM":"51062078","SMP_TAKEN_DT":"9/20/2010","CONC":".488","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-09-20"},{"SOURCE_ROW_NUMBER":"1476894","CASS_NUM":"51062110","SMP_TAKEN_DT":"9/18/2010","CONC":".457","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-09-18"},{"SOURCE_ROW_NUMBER":"1641603","CASS_NUM":"51062079","SMP_TAKEN_DT":"9/15/2010","CONC":".264","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2010-09-15"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":47,"firstDate":"2007-02-15","lastDate":"2011-10-26","metrics":{"linkedIssuances":47},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":355,"firstDate":"2007-01-17","lastDate":"2012-02-21","metrics":{"decisions":355,"ssChanged":137,"recentRows":0,"decisionPenalty":436450,"proposedPenalty":446799},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"417483","CITATION_NO":"8179125-00016174A","CITATION_ISSUE_DT":"02/21/2012","DOCKET_NO":"VA 2012-346","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.220(a)(1)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6200.00","DECISION_PENALTY_AMT":"6200.00","sourceDate":"2012-02-21"},{"SOURCE_ROW_NUMBER":"363387","CITATION_NO":"8177499-00016174A","CITATION_ISSUE_DT":"02/21/2012","DOCKET_NO":"VA 2012-346","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"50.10(d)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6800.00","DECISION_PENALTY_AMT":"6800.00","sourceDate":"2012-02-21"},{"SOURCE_ROW_NUMBER":"363386","CITATION_NO":"8179122-00016174A","CITATION_ISSUE_DT":"02/21/2012","DOCKET_NO":"VA 2012-346","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.223(b)(1)","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"2400.00","DECISION_PENALTY_AMT":"2400.00","sourceDate":"2012-02-21"},{"SOURCE_ROW_NUMBER":"82141","CITATION_NO":"8179123-00016174A","CITATION_ISSUE_DT":"02/21/2012","DOCKET_NO":"VA 2012-346","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.364(b)(5)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6900.00","DECISION_PENALTY_AMT":"6900.00","sourceDate":"2012-02-21"},{"SOURCE_ROW_NUMBER":"77952","CITATION_NO":"8177501-00016174A","CITATION_ISSUE_DT":"02/21/2012","DOCKET_NO":"VA 2012-346","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.380(d)(1)","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"6800.00","DECISION_PENALTY_AMT":"6800.00","sourceDate":"2012-02-21"},{"SOURCE_ROW_NUMBER":"115813","CITATION_NO":"8176434","CITATION_ISSUE_DT":"11/10/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.372(a)(1)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-11-10"},{"SOURCE_ROW_NUMBER":"22121","CITATION_NO":"8176039","CITATION_ISSUE_DT":"10/29/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.1200(b)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-10-29"},{"SOURCE_ROW_NUMBER":"21716","CITATION_NO":"8176033","CITATION_ISSUE_DT":"10/26/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"77.508-1","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-10-26"},{"SOURCE_ROW_NUMBER":"304483","CITATION_NO":"8179132","CITATION_ISSUE_DT":"10/20/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.362(d)(2)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"248043","CITATION_NO":"8179133","CITATION_ISSUE_DT":"10/20/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.1725(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"162.00","DECISION_PENALTY_AMT":"162.00","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"417672","CITATION_NO":"8176200","CITATION_ISSUE_DT":"10/14/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"72.630(b)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"192746","CITATION_NO":"8176201","CITATION_ISSUE_DT":"10/14/2010","DOCKET_NO":"VA 2011-176","DECISION_DT":"10/15/2012","CFR_STANDARD_CODE":"75.370(a)(1)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-10-14"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":174,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":7,"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":45,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":6,"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":7,"firstDate":"2006-06-15","lastDate":"2006-10-02","metrics":{"recentRows":0,"currentOperatorTenures":4,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":62,"firstDate":"2006-07-31","lastDate":"2011-01-25","metrics":{"inspectors":113,"recentRows":0,"onSiteHours":1808.25,"inspectionHours":2999.75,"inspectionSamples":313},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"729593","EVENT_NO":"4413072","INSPECTION_BEGIN_DT":"01/25/2011","INSPECTION_END_DT":"01/25/2011","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.25","SUM_TOTAL_ON_SITE_HOURS":"1.75","sourceDate":"2011-01-25"},{"SOURCE_ROW_NUMBER":"668662","EVENT_NO":"4403397","INSPECTION_BEGIN_DT":"10/04/2010","INSPECTION_END_DT":"10/04/2010","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2010-10-04"},{"SOURCE_ROW_NUMBER":"473729","EVENT_NO":"4407129","INSPECTION_BEGIN_DT":"10/01/2010","INSPECTION_END_DT":"11/29/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"4","SUM_TOTAL_INSP_HOURS":"180.5","SUM_TOTAL_ON_SITE_HOURS":"104.75","sourceDate":"2010-10-01"},{"SOURCE_ROW_NUMBER":"1002154","EVENT_NO":"4413055","INSPECTION_BEGIN_DT":"09/22/2010","INSPECTION_END_DT":"09/29/2010","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"48.5","SUM_TOTAL_ON_SITE_HOURS":"20.75","sourceDate":"2010-09-22"},{"SOURCE_ROW_NUMBER":"102739","EVENT_NO":"4413052","INSPECTION_BEGIN_DT":"09/03/2010","INSPECTION_END_DT":"09/03/2010","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.75","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2010-09-03"},{"SOURCE_ROW_NUMBER":"1096896","EVENT_NO":"4403394","INSPECTION_BEGIN_DT":"09/01/2010","INSPECTION_END_DT":"09/07/2010","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13","SUM_TOTAL_ON_SITE_HOURS":"7.5","sourceDate":"2010-09-01"},{"SOURCE_ROW_NUMBER":"244473","EVENT_NO":"4412128","INSPECTION_BEGIN_DT":"08/16/2010","INSPECTION_END_DT":"09/03/2010","ACTIVITY_CODE":"E08","ACTIVITY":"Non-Injury Accident Investigation","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"41.25","SUM_TOTAL_ON_SITE_HOURS":"23.5","sourceDate":"2010-08-16"},{"SOURCE_ROW_NUMBER":"954745","EVENT_NO":"4413045","INSPECTION_BEGIN_DT":"07/01/2010","INSPECTION_END_DT":"08/31/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"163.25","SUM_TOTAL_ON_SITE_HOURS":"107","sourceDate":"2010-07-01"},{"SOURCE_ROW_NUMBER":"567490","EVENT_NO":"4413041","INSPECTION_BEGIN_DT":"06/22/2010","INSPECTION_END_DT":"07/01/2010","ACTIVITY_CODE":"E07","ACTIVITY":"Non-Fatal Accident Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14.75","SUM_TOTAL_ON_SITE_HOURS":"8.75","sourceDate":"2010-06-22"},{"SOURCE_ROW_NUMBER":"148808","EVENT_NO":"4407047","INSPECTION_BEGIN_DT":"04/21/2010","INSPECTION_END_DT":"04/22/2010","ACTIVITY_CODE":"E21","ACTIVITY":"Ventilation Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2010-04-21"},{"SOURCE_ROW_NUMBER":"890102","EVENT_NO":"4406872","INSPECTION_BEGIN_DT":"04/13/2010","INSPECTION_END_DT":"04/13/2010","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.25","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2010-04-13"},{"SOURCE_ROW_NUMBER":"1004596","EVENT_NO":"4403834","INSPECTION_BEGIN_DT":"04/01/2010","INSPECTION_END_DT":"06/16/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"125.5","SUM_TOTAL_ON_SITE_HOURS":"78","sourceDate":"2010-04-01"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":33,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2010-Q4":{"hours":4284,"employees":14,"production":4284},"2010-Q3":{"hours":8631,"employees":15,"production":17177},"2010-Q2":{"hours":8886,"employees":15,"production":14500},"2010-Q1":{"hours":6392,"employees":15,"production":12425},"2009-Q4":{"hours":7228,"employees":15,"production":17476},"2009-Q3":{"hours":6823,"employees":15,"production":14662},"2009-Q2":{"hours":9660,"employees":15,"production":13212},"2009-Q1":{"hours":8417,"employees":15,"production":14668},"2008-Q4":{"hours":7161,"employees":20,"production":14880},"2008-Q3":{"hours":7185,"employees":20,"production":18846},"2008-Q2":{"hours":8843,"employees":25,"production":28727},"2008-Q1":{"hours":7754,"employees":30,"production":26948}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":9,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2006":{"hours":308,"employees":5,"production":618},"2007":{"hours":19542,"employees":21,"production":71624},"2008":{"hours":30943,"employees":24,"production":89401},"2009":{"hours":32128,"employees":15,"production":60018},"2010":{"hours":28193,"employees":15,"production":48386}},"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":34,"firstDate":"2007-01-04","lastDate":"2010-10-08","metrics":{"recentRows":0,"doseOver100":2,"actDoseTotal":2181,"pelDoseTotal":1593},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"210259","EVENT_NO":"4407129","SURVEY_DATE":"10/08/2010","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"61","PEL_DOSE_90":"32","SURVEY_TYPE":"I","sourceDate":"2010-10-08"},{"SOURCE_ROW_NUMBER":"210258","EVENT_NO":"4407129","SURVEY_DATE":"10/08/2010","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"63","PEL_DOSE_90":"38","SURVEY_TYPE":"I","sourceDate":"2010-10-08"},{"SOURCE_ROW_NUMBER":"210257","EVENT_NO":"4407129","SURVEY_DATE":"10/08/2010","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"40","MANUFACTURER_CD":"050","ACT_DOSE_85":"37","PEL_DOSE_90":"28","SURVEY_TYPE":"I","sourceDate":"2010-10-08"},{"SOURCE_ROW_NUMBER":"210256","EVENT_NO":"4407129","SURVEY_DATE":"10/08/2010","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"40","MANUFACTURER_CD":"050","ACT_DOSE_85":"70","PEL_DOSE_90":"50","SURVEY_TYPE":"I","sourceDate":"2010-10-08"},{"SOURCE_ROW_NUMBER":"210255","EVENT_NO":"4407129","SURVEY_DATE":"10/08/2010","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"058","ACT_DOSE_85":"71","PEL_DOSE_90":"56","SURVEY_TYPE":"I","sourceDate":"2010-10-08"},{"SOURCE_ROW_NUMBER":"210254","EVENT_NO":"4406772","SURVEY_DATE":"10/27/2009","OCCUPATION_CD_DESC":"UTILITY MAN","MACHINE_CD":"40","MANUFACTURER_CD":"120","ACT_DOSE_85":"18","PEL_DOSE_90":"8","SURVEY_TYPE":"I","sourceDate":"2009-10-27"},{"SOURCE_ROW_NUMBER":"210253","EVENT_NO":"4406772","SURVEY_DATE":"10/20/2009","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"058","ACT_DOSE_85":"96","PEL_DOSE_90":"80","SURVEY_TYPE":"I","sourceDate":"2009-10-20"},{"SOURCE_ROW_NUMBER":"210252","EVENT_NO":"4406772","SURVEY_DATE":"10/20/2009","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"66","PEL_DOSE_90":"43","SURVEY_TYPE":"I","sourceDate":"2009-10-20"},{"SOURCE_ROW_NUMBER":"210251","EVENT_NO":"4406772","SURVEY_DATE":"10/20/2009","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"62","PEL_DOSE_90":"42","SURVEY_TYPE":"I","sourceDate":"2009-10-20"},{"SOURCE_ROW_NUMBER":"210250","EVENT_NO":"4406772","SURVEY_DATE":"10/20/2009","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"08","MANUFACTURER_CD":"056","ACT_DOSE_85":"78","PEL_DOSE_90":"48","SURVEY_TYPE":"I","sourceDate":"2009-10-20"},{"SOURCE_ROW_NUMBER":"210249","EVENT_NO":"4406772","SURVEY_DATE":"10/20/2009","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"08","MANUFACTURER_CD":"056","ACT_DOSE_85":"22","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2009-10-20"},{"SOURCE_ROW_NUMBER":"210248","EVENT_NO":"4406721","SURVEY_DATE":"07/28/2009","OCCUPATION_CD_DESC":"UTILITY MAN","MACHINE_CD":"40","MANUFACTURER_CD":"119","ACT_DOSE_85":"11","PEL_DOSE_90":"3","SURVEY_TYPE":"F","sourceDate":"2009-07-28"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":9,"firstDate":"2007-12-18","lastDate":"2010-02-26","metrics":{"recentRows":0,"voidSamples":2,"maxQuartzPct":8.2,"validSamples":7,"quartzPctTotal":37.7},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"111519","CASSETTE_NO":"51060683","SAMPLE_DT":"02/26/2010","QUARTZ_PCT":"00.9","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2010-02-26"},{"SOURCE_ROW_NUMBER":"129192","CASSETTE_NO":"51060627","SAMPLE_DT":"02/05/2010","QUARTZ_PCT":"00.7","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2010-02-05"},{"SOURCE_ROW_NUMBER":"150519","CASSETTE_NO":"57845021","SAMPLE_DT":"01/13/2010","QUARTZ_PCT":"07.0","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2010-01-13"},{"SOURCE_ROW_NUMBER":"4865","CASSETTE_NO":"51007496","SAMPLE_DT":"05/08/2009","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"INSUFFICIENT WEIGHT GAIN","sourceDate":"2009-05-08"},{"SOURCE_ROW_NUMBER":"14505","CASSETTE_NO":"57783761","SAMPLE_DT":"04/15/2009","QUARTZ_PCT":"06.5","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2009-04-15"},{"SOURCE_ROW_NUMBER":"11752","CASSETTE_NO":"50990517","SAMPLE_DT":"01/19/2009","QUARTZ_PCT":"07.5","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2009-01-19"},{"SOURCE_ROW_NUMBER":"83065","CASSETTE_NO":"50912027","SAMPLE_DT":"01/15/2008","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"CONTAMINATED","sourceDate":"2008-01-15"},{"SOURCE_ROW_NUMBER":"107629","CASSETTE_NO":"57683884","SAMPLE_DT":"12/18/2007","QUARTZ_PCT":"08.2","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2007-12-18"},{"SOURCE_ROW_NUMBER":"96713","CASSETTE_NO":"57683997","SAMPLE_DT":"12/18/2007","QUARTZ_PCT":"06.9","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2007-12-18"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":556,"firstDate":"2006-11-21","lastDate":"2010-11-02","metrics":{"ss":142,"amountDue":474625,"contested":338,"amountPaid":123698.32,"recentRows":0,"section104d":18,"unterminated":1,"proposedPenalty":484874},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2425834","VIOLATION_NO":"8176041","VIOLATION_ISSUE_DT":"11/02/2010","SIG_SUB":"N","PART_SECTION":"75.1200(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"11/15/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-11-02"},{"SOURCE_ROW_NUMBER":"2425833","VIOLATION_NO":"8176039","VIOLATION_ISSUE_DT":"10/29/2010","SIG_SUB":"N","PART_SECTION":"75.1200(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"11/15/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-29"},{"SOURCE_ROW_NUMBER":"2425832","VIOLATION_NO":"8176033","VIOLATION_ISSUE_DT":"10/26/2010","SIG_SUB":"N","PART_SECTION":"77.508-1","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/29/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-26"},{"SOURCE_ROW_NUMBER":"2425839","VIOLATION_NO":"8176433","VIOLATION_ISSUE_DT":"10/21/2010","SIG_SUB":"N","PART_SECTION":"75.364(a)(1)","CIT_ORD_SAFE":"Order","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"5","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"10/21/2010","PROPOSED_PENALTY":"4000","AMOUNT_DUE":"4000","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-10-21"},{"SOURCE_ROW_NUMBER":"2425838","VIOLATION_NO":"8176432","VIOLATION_ISSUE_DT":"10/21/2010","SIG_SUB":"N","PART_SECTION":"75.364(a)(2)","CIT_ORD_SAFE":"Order","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"5","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"10/21/2010","PROPOSED_PENALTY":"4000","AMOUNT_DUE":"4000","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-10-21"},{"SOURCE_ROW_NUMBER":"2425842","VIOLATION_NO":"8179133","VIOLATION_ISSUE_DT":"10/20/2010","SIG_SUB":"Y","PART_SECTION":"75.1725(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/25/2010","PROPOSED_PENALTY":"162","AMOUNT_DUE":"162","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"2425841","VIOLATION_NO":"8179132","VIOLATION_ISSUE_DT":"10/20/2010","SIG_SUB":"N","PART_SECTION":"75.362(d)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/25/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-20"},{"SOURCE_ROW_NUMBER":"2425837","VIOLATION_NO":"8176430","VIOLATION_ISSUE_DT":"10/15/2010","SIG_SUB":"N","PART_SECTION":"75.364(b)(2)","CIT_ORD_SAFE":"Order","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"5","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"10/15/2010","PROPOSED_PENALTY":"4000","AMOUNT_DUE":"4000","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-10-15"},{"SOURCE_ROW_NUMBER":"2425836","VIOLATION_NO":"8176201","VIOLATION_ISSUE_DT":"10/14/2010","SIG_SUB":"N","PART_SECTION":"75.370(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/25/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"2425835","VIOLATION_NO":"8176200","VIOLATION_ISSUE_DT":"10/14/2010","SIG_SUB":"N","PART_SECTION":"72.630(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"2","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/14/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"2425831","VIOLATION_NO":"8176031","VIOLATION_ISSUE_DT":"10/14/2010","SIG_SUB":"Y","PART_SECTION":"75.400","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"8","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/15/2010","PROPOSED_PENALTY":"540","AMOUNT_DUE":"540","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-14"},{"SOURCE_ROW_NUMBER":"2425830","VIOLATION_NO":"8176030","VIOLATION_ISSUE_DT":"10/13/2010","SIG_SUB":"N","PART_SECTION":"75.1103-1(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"8","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/19/2010","PROPOSED_PENALTY":"108","AMOUNT_DUE":"108","AMOUNT_PAID":"0","CONTESTED_IND":"Y","DOCKET_NO":"VA 2011-176","sourceDate":"2010-10-13"}]}],"safety":{"href":"/api/v1/mines/4407179/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4407179/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","heading":"Mine map.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-M/section-75.1200","part":"75","subchapter":"O","subpart":"M","id":"75.1200","citation":"30 CFR 75.1200","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":2},{"chapter":"I","heading":"Lightning arresters; wires entering buildings.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.508-1","part":"77","subchapter":"O","subpart":"F","id":"77.508-1","citation":"30 CFR 77.508-1","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 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":3},{"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},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.362","heading":"On-shift examination.","id":"75.362","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.362","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) At least once during each shift, or more often if necessary for safety, a certified person designated by the operator shall conduct an on-shift examination of each section where anyone is assigned to work during the shift and any area where mechanized mining equipment is being installed or removed during the shift. The certified person shall check for hazardous conditions and violations of the mandatory health or safety standards referenced in paragraph (a)(3) of this section, test for methane and oxygen deficiency, and determine if the air is moving in its proper direction.\n\n(2) A person designated by the operator shall conduct an examination and record the results and the corrective actions taken to assure compliance with the respirable dust control parameters specified in the approved mine ventilation plan. In those instances when a shift change is accomplished without an interruption in production on a section, the examination shall be made anytime within 1 hour after the shift change. In those instances when there is an interruption in production during the shift change, the examination shall be made before production begins on a section. Deficiencies in dust controls shall be corrected before production begins or resumes. The examination shall include: Air quantities and velocities; water pressures and flow rates; excessive leakage in the water delivery system; water spray numbers and orientations; section ventilation and control device placement; roof bolting machine dust collector vacuum levels; scrubber air flow rate; work practices required by the ventilation plan; and any other dust suppression measures. Measurements of the air velocity and quantity, water pressure and flow rates are not required if continuous monitoring of these controls is used and indicates that the dust controls are functioning properly.\n\n(3) On-shift 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;\n\n(iv) § 75.1403—other safeguards, limited to maintenance of travelways along belt conveyors, 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(b) During each shift that coal is produced, a certified person shall examine for hazardous conditions and violations of the mandatory health or safety standards referenced in paragraph (a)(3) of this section along each belt conveyor haulageway where a belt conveyor is operated. This examination may be conducted at the same time as the preshift examination of belt conveyors and belt conveyor haulageways, if the examination is conducted within 3 hours before the oncoming shift.\n\n(c) Persons conducting the on-shift examination shall determine at the following locations:\n\n(1) The volume of air in the last open crosscut of each set of entries or rooms on each section and areas where mechanized mining equipment is being installed or removed. The last open crosscut is the crosscut in the line of pillars containing the permanent stoppings that separate the intake air courses and the return air courses.\n\n(2) The volume of air on a longwall or shortwall, including areas where longwall or shortwall equipment is being installed or removed, in the intake entry or entries at the intake end of the longwall or shortwall.\n\n(3) The velocity of air at each end of the longwall or shortwall face at the locations specified in the approved ventilation plan.\n\n(4) The volume of air at the intake end of any pillar line—\n\n(i) Where a single split of air is used in the intake entry furthest from the return air course immediately outby the first open crosscut outby the line of pillars being mined; or\n\n(ii) Where a split system is used in the intake entries of each split immediately inby the split point.\n\n(d) (1) A qualified person shall make tests for methane—\n\n(i) At the start of each shift at each working place before electrically operated equipment is energized; and\n\n(ii) Immediately before equipment is energized, taken into, or operated in a working place; and\n\n(iii) At 20-minute intervals, or more often if required in the approved ventilation plan at specific locations, during the operation of equipment in the working place.\n\n(2) Except as provided for in paragraph (d)(3) of this section, these methane tests shall be made at the face from under permanent roof support, using extendable probes or other acceptable means. When longwall or shortwall mining systems are used, these methane tests shall be made at the shearer, the plow, or the cutting head. When mining has been stopped for more than 20 minutes, methane tests shall be conducted prior to the start up of equipment.\n\n(3) As an alternative method of compliance with paragraph (d)(2) of this section during roof bolting, methane tests may be made by sweeping an area not less than 16 feet inby the last area of permanently supported roof, using a probe or other acceptable means. This method of testing is conditioned on meeting the following requirements:\n\n(i) The roof bolting machine must be equipped with an integral automated temporary roof support (ATRS) system that meets the requirements of 30 CFR 75.209.\n\n(ii) The roof bolting machine must have a permanently mounted, MSHA-approved methane monitor which meets the maintenance and calibration requirements of 30 CFR 75.342(a)(4), the warning signal requirements of 30 CFR 75.342(b), and the automatic de-energization requirements of 30 CFR 75.342(c).\n\n(iii) The methane monitor sensor must be mounted near the inby end and within 18 inches of the longitudinal center of the ATRS support, and positioned at least 12 inches from the roof when the ATRS is fully deployed.\n\n(iv) Manual methane tests must be made at intervals not exceeding 20 minutes. The test may be made either from under permanent roof support or from the roof bolter's work position protected by the deployed ATRS.\n\n(v) Once a methane test is made at the face, all subsequent methane tests in the same area of unsupported roof must also be made at the face, from under permanent roof support, using extendable probes or other acceptable means at intervals not exceeding 20 minutes.\n\n(vi) The district manager may require that the ventilation plan include the minimum air quantity and the position and placement of ventilation controls to be maintained during roof bolting.\n\n(e) If auxiliary fans and tubing are used, they shall be inspected frequently.\n\n(f) During each shift that coal is produced and at intervals not exceeding 4 hours, tests for methane shall be made by a certified person or by an atmospheric monitoring system (AMS) in each return split of air from each working section between the last working place, or longwall or shortwall face, ventilated by that split of air and the junction of the return air split with another air split, seal, or worked-out area. If auxiliary fans and tubing are used, the tests shall be made at a location outby the auxiliary fan discharge.\n\n(g) Certification. (1) The person conducting the on-shift examination in belt haulage entries shall certify by initials, date, and time that the examination was made. The certified person shall certify by initials, date, and the time at enough locations to show that the entire area has been examined.\n\n(2) The certified person directing the on-shift examination to assure compliance with the respirable dust control parameters specified in the approved mine ventilation plan shall:\n\n(i) Certify by initials, date, and time on a board maintained at the section load-out or similar location showing that the examination was made prior to resuming production; and\n\n(ii) Verify, by initials and date, the record of the results of the examination required under (a)(2) of this section to assure compliance with the respirable dust control parameters specified in the mine ventilation plan. The verification shall be made no later than the end of the shift for which the examination was made.\n\n(3) The mine foreman or equivalent mine official shall countersign each examination record required under (a)(2) of this section after it is verified by the certified person under (g)(2)(ii) of this section, and no later than the end of the mine foreman's or equivalent mine official's next regularly scheduled working shift. The record 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(4) 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; 61 FR 26442, May 28, 1996, as amended at 68 FR 40138, July 7, 2003; 77 FR 20715, Apr. 6, 2012; 79 FR 24987, May 1, 2014]","occurrenceCount":1},{"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 72.630","heading":"Drill dust control at underground areas of underground mines.","id":"72.630","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-72/subpart-E/section-72.630","part":"72","partHeading":"PART 72—HEALTH STANDARDS FOR COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Miscellaneous","text":"(a) Dust resulting from drilling in rock shall be controlled by use of permissible dust collectors, or by water, or water with a wetting agent, or by ventilation, or by any other method or device approved by the Secretary that is as effective in controlling the dust.\n\n(b) Dust collectors. Dust collectors shall be maintained in permissible and operating condition. Dust collectors approved under Part 33—Dust Collectors for Use in Connection with Rock Drilling in Coal Mines of this title or under Bureau of Mines Schedule 25B are permissible dust collectors for the purpose of this section.\n\n(c) Water control. Water used to control dust from drilling rock shall be applied through a hollow drill steel or stem or by the flooding of vertical drill holes in the floor.\n\n(d) Ventilation control. To adequately control dust from drilling rock, the air current shall be so directed that the dust is readily dispersed and carried away from the drill operator or any other miners in the area.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.400","heading":"Accumulation of combustible materials.","id":"75.400","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Combustible Materials and Rock Dusting","text":"Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible materials, shall be cleaned up and not be permitted to accumulate in active workings, or on diesel-powered and electric equipment therein.\n\n[61 FR 55527, Oct. 25, 1996]","occurrenceCount":1},{"chapter":"I","heading":"Automatic fire sensors.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1103-1","part":"75","subchapter":"O","subpart":"L","id":"75.1103-1","citation":"30 CFR 75.1103-1","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4407179","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}