{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4801200","name":"Buckskin Mine","status":"Active","status_date":"1982-10-18","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"WY","county":"Campbell","nearest_town":"Gillette","operator_id":"0138733","operator_name":"Buckskin Mining Company","controller_id":"C02111","controller_name":"Kiewit Peter Sons' Inc","district":"C09","office":"Gillette WY Field Office","employees":120,"latitude":44.433611,"longitude":-105.528611},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":7336},"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":"4801200","name":"Buckskin Mine"},"operator":{"type":"operator","id":"0138733","name":"Buckskin Mining Company"},"controller":{"type":"controller","id":"C02111","name":"Kiewit Peter Sons' Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12529","name":"Triton Coal Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1978-11-01","validTo":"1992-11-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P12529|1978-11-01|1992-11-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01012","name":"Shell Oil Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1978-11-01","validTo":"1992-11-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C01012|1978-11-01|1992-11-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01012","name":"Shell Oil Company"},"object":{"type":"operator","id":"P12529","name":"Triton Coal Company"},"validFrom":"1978-11-01","validTo":"1992-11-23","current":false,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P12529|1978-11-01|C01012|1978-11-01|51676"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22229","name":"Triton Coal Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1992-11-24","validTo":"1998-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P22229|1992-11-24|1998-09-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11633","name":"Zeigler Coal Holding Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1992-11-24","validTo":"1998-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C11633|1992-11-24|1998-09-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11633","name":"Zeigler Coal Holding Company"},"object":{"type":"operator","id":"P22229","name":"Triton Coal Company"},"validFrom":"1992-11-24","validTo":"1998-09-01","current":false,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P22229|1992-11-24|C11633|1992-11-24|85081"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24209","name":"Triton Coal Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1998-09-02","validTo":"1998-12-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P24209|1998-09-02|1998-12-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06656","name":"Horizon Natural Resources Incorporated"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1998-09-02","validTo":"1998-12-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C06656|1998-09-02|1998-12-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06656","name":"Horizon Natural Resources Incorporated"},"object":{"type":"operator","id":"P24209","name":"Triton Coal Company"},"validFrom":"1998-09-02","validTo":"1998-12-13","current":false,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P24209|1998-09-02|C06656|1998-09-02|72625"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24210","name":"Triton Coal Company Llc"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1998-12-14","validTo":"2004-08-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P24210|1998-12-14|2004-08-20"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15762","name":"Vulcan Partners"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"1998-12-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C15762|1998-12-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15762","name":"Vulcan Partners"},"object":{"type":"operator","id":"P24210","name":"Triton Coal Company Llc"},"validFrom":"1998-12-14","validTo":"2004-08-20","current":false,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|P24210|1998-12-14|C15762|1998-12-14|96713"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0053919","name":"Kiewit Mining Group Inc."},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"2004-08-21","validTo":"2015-05-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|0053919|2004-08-21|2015-05-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02111","name":"Kiewit Peter Sons' Inc"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"2004-08-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C02111|2004-08-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02111","name":"Kiewit Peter Sons' Inc"},"object":{"type":"operator","id":"0053919","name":"Kiewit Mining Group Inc."},"validFrom":"2004-08-21","validTo":"2015-05-03","current":false,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|0053919|2004-08-21|C02111|2004-08-21|57496"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0138733","name":"Buckskin Mining Company"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"2015-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|0138733|2015-05-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02111","name":"Kiewit Peter Sons' Inc"},"object":{"type":"mine","id":"4801200","name":"Buckskin Mine"},"validFrom":"2015-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|C02111|2015-05-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02111","name":"Kiewit Peter Sons' Inc"},"object":{"type":"operator","id":"0138733","name":"Buckskin Mining Company"},"validFrom":"2015-05-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801200","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801200|0138733|2015-05-04|C02111|2015-05-04|57497"}}],"coverage":{"historyRecords":6,"edgeCount":18,"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":122,"firstDate":"2000-01-13","lastDate":"2025-09-17","metrics":{"daysLost":1018,"injuries":88,"fatalities":0,"recentRows":35,"restrictedDays":196,"contractorRecords":33},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"115865","DOCUMENT_NO":"220252610019","ACCIDENT_DT":"09/17/2025","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We had another smoker start up and we have all our rubber tire dozers down. We are waiting to get a tire replaced on a rubber tire dozer then it will go out and put the smoker out.","sourceDate":"2025-09-17"},{"SOURCE_ROW_NUMBER":"8554","DOCUMENT_NO":"220252610018","ACCIDENT_DT":"09/15/2025","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We had a Smoker on our Anderson coal seam bench. We got our RTD working on getting them out.","sourceDate":"2025-09-15"},{"SOURCE_ROW_NUMBER":"159067","DOCUMENT_NO":"220243030006","ACCIDENT_DT":"10/20/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Contractor left their master switch on and it caused a fire to their motorgrader. No one was operating the machine and it was away from anything that could burn. No one was hurt, the blade was burnt up. They took it off site.","sourceDate":"2024-10-20"},{"SOURCE_ROW_NUMBER":"249413","DOCUMENT_NO":"220241310015","ACCIDENT_DT":"05/10/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We have a couple of smokers on our A seam and C Seams of coal. We are trying to get to them to put them out. Our pit is very muddy. We are going to bury them as soon as we get to them.","sourceDate":"2024-05-10"},{"SOURCE_ROW_NUMBER":"64281","DOCUMENT_NO":"220241290020","ACCIDENT_DT":"05/08/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We have a smoker on our A-Seam in the Northwest cut. We are digging it out and pushing material over to get it put out. Lots of rain is hindering us from getting it out in a timely manner.","sourceDate":"2024-05-08"},{"SOURCE_ROW_NUMBER":"102904","DOCUMENT_NO":"220241000009","ACCIDENT_DT":"04/09/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Found we had 2 smokers on our Canyon coal seam and 2 smokers on our Anderson coal seam that flared up this morning around 7:15am. We are working on getting them all put out, it is just going to take longer then 30 minutes.","sourceDate":"2024-04-09"},{"SOURCE_ROW_NUMBER":"240901","DOCUMENT_NO":"220240990011","ACCIDENT_DT":"04/08/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We have a Coal Smoker on our west end of the Canyon Coal Seam. We will Not have it out in the 30 minutes. We did not have anyone on night shift because of a winter storm, We are getting crews out to get the smokers put out.","sourceDate":"2024-04-08"},{"SOURCE_ROW_NUMBER":"236544","DOCUMENT_NO":"220240940012","ACCIDENT_DT":"04/03/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"We have a couple of smokers in our Anderson coal seam. We are needing more time to put them out because of where they are located. We have a dozer in the process of getting the smokers put out.","sourceDate":"2024-04-03"},{"SOURCE_ROW_NUMBER":"81651","DOCUMENT_NO":"220240880017","ACCIDENT_DT":"03/28/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Had some smokers flare up on us that we were not able to get it out in the proper time. We are pushing material over on to the smoker to snuff it out. It was on our Canyon coal seam.","sourceDate":"2024-03-28"},{"SOURCE_ROW_NUMBER":"262411","DOCUMENT_NO":"220240810025","ACCIDENT_DT":"03/21/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Coal fire that started from spontaneous combustion and wind in the north C 1-2 face.","sourceDate":"2024-03-21"},{"SOURCE_ROW_NUMBER":"25839","DOCUMENT_NO":"220240680017","ACCIDENT_DT":"03/08/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"East A1/2 catch bench has a coal fire burning that was caused by windy conditions and spontaneous combustion of the coal. The catch bench is hard to get to so it will be 5 to 6 hours before a piece of equipment will be able to get to the fire to dig it out.","sourceDate":"2024-03-08"},{"SOURCE_ROW_NUMBER":"193380","DOCUMENT_NO":"220240680005","ACCIDENT_DT":"03/07/2024","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","NARRATIVE":"Smoldering coal which was started by the high winds and spontaneous combustion was noticed at 12:00 PM in the North A1/2 face and it was going to be several hours before a rubber tire dozer could get to it to bury it because of the shovel trailing cable across the road. A cable duct was put in place and a rubber tire dozer was able to cross the cable and bury the hot spot.","sourceDate":"2024-03-07"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"1982-10-18","lastDate":"1982-10-18","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":420,"firstDate":"2001-01-22","lastDate":"2026-03-04","metrics":{"ss":69,"delinquent":371,"recentRows":143,"paidPenalty":146819.99,"proposedPenalty":217240,"currentAssessment":185493},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2943984","VIOLATION_NO":"9732831","ISSUE_DT":"03/04/2026","CFR_STANDARD_CD":"77.404(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"755.00","CURRENT_ASSESSMENT_AMT":"755.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"2943983","VIOLATION_NO":"9732830","ISSUE_DT":"03/04/2026","CFR_STANDARD_CD":"77.1110","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"2943982","VIOLATION_NO":"9732829","ISSUE_DT":"02/20/2026","CFR_STANDARD_CD":"77.1607(b)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"2503.00","CURRENT_ASSESSMENT_AMT":"2503.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"2943985","VIOLATION_NO":"9733015","ISSUE_DT":"02/19/2026","CFR_STANDARD_CD":"77.502","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"398.00","CURRENT_ASSESSMENT_AMT":"398.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-02-19"},{"SOURCE_ROW_NUMBER":"2943981","VIOLATION_NO":"9732828","ISSUE_DT":"02/19/2026","CFR_STANDARD_CD":"77.2104(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-02-19"},{"SOURCE_ROW_NUMBER":"2943980","VIOLATION_NO":"9732827","ISSUE_DT":"02/19/2026","CFR_STANDARD_CD":"77.106","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-02-19"},{"SOURCE_ROW_NUMBER":"2943979","VIOLATION_NO":"9732826","ISSUE_DT":"02/18/2026","CFR_STANDARD_CD":"77.410(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"177.00","CURRENT_ASSESSMENT_AMT":"177.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-02-18"},{"SOURCE_ROW_NUMBER":"2919333","VIOLATION_NO":"5034125","ISSUE_DT":"09/25/2025","CFR_STANDARD_CD":"77.807","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"2919332","VIOLATION_NO":"5034124","ISSUE_DT":"09/25/2025","CFR_STANDARD_CD":"47.42(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"177.00","CURRENT_ASSESSMENT_AMT":"177.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2025-09-25"},{"SOURCE_ROW_NUMBER":"2919323","VIOLATION_NO":"5033706","ISSUE_DT":"09/24/2025","CFR_STANDARD_CD":"77.205(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"177.00","CURRENT_ASSESSMENT_AMT":"177.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2025-09-24"},{"SOURCE_ROW_NUMBER":"2919337","VIOLATION_NO":"9732353","ISSUE_DT":"09/23/2025","CFR_STANDARD_CD":"77.509(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"177.00","CURRENT_ASSESSMENT_AMT":"177.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2025-09-23"},{"SOURCE_ROW_NUMBER":"2919336","VIOLATION_NO":"9732352","ISSUE_DT":"09/23/2025","CFR_STANDARD_CD":"77.502","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"177.00","CURRENT_ASSESSMENT_AMT":"177.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2025-09-23"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":15,"firstDate":"2013-02-27","lastDate":"2025-05-23","metrics":{"appeals":0,"decisions":15,"recentRows":9,"decisionPenalty":30991,"originalPenalty":71728},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"453193","VIOLATION_NO":"9731383","DOCKET_NO":"WEST 2025-0134","DECISION_DT":"05/23/2025","DECISION_TYPE_CODE_DESC":"Default","ORIGINAL_PENALTY_AMT":"1098.00","DECISION_PENALTY_AMT":"1098.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2025-05-23"},{"SOURCE_ROW_NUMBER":"453940","VIOLATION_NO":"9732186","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1918.00","DECISION_PENALTY_AMT":"861.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"453876","VIOLATION_NO":"9732188","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1637.00","DECISION_PENALTY_AMT":"1637.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"452801","VIOLATION_NO":"9731160","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"3642.00","DECISION_PENALTY_AMT":"3642.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"452663","VIOLATION_NO":"9731162","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"9510.00","DECISION_PENALTY_AMT":"1918.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"452662","VIOLATION_NO":"9731157","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"6905.00","DECISION_PENALTY_AMT":"6905.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"163211","VIOLATION_NO":"9731158","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1773.00","DECISION_PENALTY_AMT":"797.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"163145","VIOLATION_NO":"9731161","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"15369.00","DECISION_PENALTY_AMT":"6905.00","JUDGE_FIRST_NAME":"Michael","JUDGE_LAST_NAME":"Young","sourceDate":"2025-04-18"},{"SOURCE_ROW_NUMBER":"448904","VIOLATION_NO":"9731331","DOCKET_NO":"WEST 2024-0211","DECISION_DT":"11/18/2024","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"19539.00","DECISION_PENALTY_AMT":"5881.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2024-11-18"},{"SOURCE_ROW_NUMBER":"394300","VIOLATION_NO":"8486868","DOCKET_NO":"WEST 2017-0520","DECISION_DT":"11/08/2017","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"5785.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2017-11-08"},{"SOURCE_ROW_NUMBER":"394172","VIOLATION_NO":"8486869","DOCKET_NO":"WEST 2017-0521","DECISION_DT":"10/25/2017","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"116.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2017-10-25"},{"SOURCE_ROW_NUMBER":"339673","VIOLATION_NO":"8476092","DOCKET_NO":"WEST 2013-471","DECISION_DT":"08/28/2013","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"2282.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2013-08-28"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":519,"firstDate":"2000-03-06","lastDate":"2026-09-22","metrics":{"recentRows":172,"cpdmSamples":0,"voidSamples":26,"validSamples":493,"maxConcentration":2.445,"concentrationTotal":58.102},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1462616","CASS_NUM":"58000938","SMP_TAKEN_DT":"9/22/2026","CONC":".24","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"1369057","CASS_NUM":"58000944","SMP_TAKEN_DT":"9/22/2026","CONC":".005","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":"CLEANUP MAN","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"1134123","CASS_NUM":"58000862","SMP_TAKEN_DT":"9/22/2026","CONC":".019","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"875276","CASS_NUM":"58000942","SMP_TAKEN_DT":"9/22/2026","CONC":".013","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"202236","CASS_NUM":"51669714","SMP_TAKEN_DT":"9/22/2026","CONC":".232","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"169605","CASS_NUM":"58000870","SMP_TAKEN_DT":"9/22/2026","CONC":".039","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":"ROAD GRADER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"144325","CASS_NUM":"51669704","SMP_TAKEN_DT":"8/26/2026","CONC":".057","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-08-26"},{"SOURCE_ROW_NUMBER":"1548208","CASS_NUM":"51669710","SMP_TAKEN_DT":"8/24/2026","CONC":".017","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-08-24"},{"SOURCE_ROW_NUMBER":"648336","CASS_NUM":"51669707","SMP_TAKEN_DT":"7/7/2026","CONC":".033","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-07-07"},{"SOURCE_ROW_NUMBER":"412862","CASS_NUM":"51669332","SMP_TAKEN_DT":"6/9/2026","CONC":".039","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-06-09"},{"SOURCE_ROW_NUMBER":"1337226","CASS_NUM":"51669342","SMP_TAKEN_DT":"5/5/2026","CONC":".052","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"BULLDOZER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-05-05"},{"SOURCE_ROW_NUMBER":"944828","CASS_NUM":"51669345","SMP_TAKEN_DT":"4/9/2026","CONC":".094","SMP_TYPE_CD_DESC":"DESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT YET USED IN DETERMINATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"HIGHWALL DRILL OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2026-04-09"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":2,"firstDate":"2004-09-03","lastDate":"2012-03-27","metrics":{"linkedIssuances":2},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":15,"firstDate":"2011-09-29","lastDate":"2024-10-16","metrics":{"decisions":15,"ssChanged":7,"recentRows":9,"decisionPenalty":30991,"proposedPenalty":71728},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"451221","CITATION_NO":"9731383","CITATION_ISSUE_DT":"10/16/2024","DOCKET_NO":"WEST 2025-0134","DECISION_DT":"05/23/2025","CFR_STANDARD_CODE":"77.502","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1098.00","DECISION_PENALTY_AMT":"1098.00","sourceDate":"2024-10-16"},{"SOURCE_ROW_NUMBER":"278320","CITATION_NO":"9732188","CITATION_ISSUE_DT":"09/25/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.701","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1637.00","DECISION_PENALTY_AMT":"1637.00","sourceDate":"2024-09-25"},{"SOURCE_ROW_NUMBER":"221732","CITATION_NO":"9732186","CITATION_ISSUE_DT":"09/24/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.502","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1918.00","DECISION_PENALTY_AMT":"861.00","sourceDate":"2024-09-24"},{"SOURCE_ROW_NUMBER":"392624","CITATION_NO":"9731161","CITATION_ISSUE_DT":"09/23/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.502","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"15369.00","DECISION_PENALTY_AMT":"6905.00","sourceDate":"2024-09-23"},{"SOURCE_ROW_NUMBER":"109375","CITATION_NO":"9731162","CITATION_ISSUE_DT":"09/23/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.512","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"9510.00","DECISION_PENALTY_AMT":"1918.00","sourceDate":"2024-09-23"},{"SOURCE_ROW_NUMBER":"220978","CITATION_NO":"9731160","CITATION_ISSUE_DT":"09/19/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.1110","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"3642.00","DECISION_PENALTY_AMT":"3642.00","sourceDate":"2024-09-19"},{"SOURCE_ROW_NUMBER":"338286","CITATION_NO":"9731158","CITATION_ISSUE_DT":"09/17/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.1109(e)(1)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1773.00","DECISION_PENALTY_AMT":"797.00","sourceDate":"2024-09-17"},{"SOURCE_ROW_NUMBER":"166051","CITATION_NO":"9731157","CITATION_ISSUE_DT":"09/17/2024","DOCKET_NO":"WEST 2025-0095","DECISION_DT":"04/18/2025","CFR_STANDARD_CODE":"77.1110","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"6905.00","DECISION_PENALTY_AMT":"6905.00","sourceDate":"2024-09-17"},{"SOURCE_ROW_NUMBER":"278414","CITATION_NO":"9731331","CITATION_ISSUE_DT":"02/14/2024","DOCKET_NO":"WEST 2024-0211","DECISION_DT":"11/18/2024","CFR_STANDARD_CODE":"77.512","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"19539.00","DECISION_PENALTY_AMT":"5881.00","sourceDate":"2024-02-14"},{"SOURCE_ROW_NUMBER":"321059","CITATION_NO":"8486869","CITATION_ISSUE_DT":"04/04/2017","DOCKET_NO":"WEST 2017-0521","DECISION_DT":"10/25/2017","CFR_STANDARD_CODE":"50.12","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"116.00","DECISION_PENALTY_AMT":".00","sourceDate":"2017-04-04"},{"SOURCE_ROW_NUMBER":"41991","CITATION_NO":"8486868","CITATION_ISSUE_DT":"04/04/2017","DOCKET_NO":"WEST 2017-0520","DECISION_DT":"11/08/2017","CFR_STANDARD_CODE":"50.10(b)","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"5785.00","DECISION_PENALTY_AMT":".00","sourceDate":"2017-04-04"},{"SOURCE_ROW_NUMBER":"145982","CITATION_NO":"8476092","CITATION_ISSUE_DT":"12/14/2012","DOCKET_NO":"WEST 2013-471","DECISION_DT":"08/28/2013","CFR_STANDARD_CODE":"77.408","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2282.00","DECISION_PENALTY_AMT":".00","sourceDate":"2012-12-14"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":4176,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":24,"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":867,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":24,"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":6,"firstDate":"1978-11-01","lastDate":"2015-05-04","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":5},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":132,"firstDate":"2000-03-01","lastDate":"2026-09-09","metrics":{"inspectors":274,"recentRows":28,"onSiteHours":4809.5,"inspectionHours":6686.75,"inspectionSamples":236},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1041566","EVENT_NO":"F010EF7","INSPECTION_BEGIN_DT":"09/09/2026","INSPECTION_END_DT":"09/28/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"6","SUM_TOTAL_INSP_HOURS":"143.25","SUM_TOTAL_ON_SITE_HOURS":"92.75","sourceDate":"2026-09-09"},{"SOURCE_ROW_NUMBER":"1366","EVENT_NO":"F00F36F","INSPECTION_BEGIN_DT":"02/04/2026","INSPECTION_END_DT":"03/06/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"121.25","SUM_TOTAL_ON_SITE_HOURS":"83.5","sourceDate":"2026-02-04"},{"SOURCE_ROW_NUMBER":"681279","EVENT_NO":"F0065CB","INSPECTION_BEGIN_DT":"10/01/2025","INSPECTION_END_DT":"10/06/2025","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"1.75","sourceDate":"2025-10-01"},{"SOURCE_ROW_NUMBER":"397729","EVENT_NO":"F0065C6","INSPECTION_BEGIN_DT":"09/10/2025","INSPECTION_END_DT":"09/26/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"6","SUM_TOTAL_INSP_HOURS":"131.75","SUM_TOTAL_ON_SITE_HOURS":"88","sourceDate":"2025-09-10"},{"SOURCE_ROW_NUMBER":"604515","EVENT_NO":"F0032FD","INSPECTION_BEGIN_DT":"09/04/2025","INSPECTION_END_DT":"09/04/2025","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2025-09-04"},{"SOURCE_ROW_NUMBER":"353680","EVENT_NO":"6462398","INSPECTION_BEGIN_DT":"06/30/2025","INSPECTION_END_DT":"06/30/2025","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"5.25","sourceDate":"2025-06-30"},{"SOURCE_ROW_NUMBER":"870801","EVENT_NO":"6472762","INSPECTION_BEGIN_DT":"06/04/2025","INSPECTION_END_DT":"06/09/2025","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2025-06-04"},{"SOURCE_ROW_NUMBER":"945664","EVENT_NO":"6469247","INSPECTION_BEGIN_DT":"10/06/2024","INSPECTION_END_DT":"03/27/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"149","SUM_TOTAL_ON_SITE_HOURS":"84.75","sourceDate":"2024-10-06"},{"SOURCE_ROW_NUMBER":"931141","EVENT_NO":"F0102F1","INSPECTION_BEGIN_DT":"09/16/2024","INSPECTION_END_DT":"09/26/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"92","SUM_TOTAL_ON_SITE_HOURS":"67.5","sourceDate":"2024-09-16"},{"SOURCE_ROW_NUMBER":"774015","EVENT_NO":"6469198","INSPECTION_BEGIN_DT":"04/20/2024","INSPECTION_END_DT":"04/23/2024","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2024-04-20"},{"SOURCE_ROW_NUMBER":"1161416","EVENT_NO":"6469196","INSPECTION_BEGIN_DT":"04/03/2024","INSPECTION_END_DT":"04/04/2024","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2024-04-03"},{"SOURCE_ROW_NUMBER":"673923","EVENT_NO":"6472788","INSPECTION_BEGIN_DT":"03/21/2024","INSPECTION_END_DT":"03/25/2024","ACTIVITY_CODE":"E03","ACTIVITY":"103 (g) Written Notification Hazard Complaint Inspectio","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"2.25","sourceDate":"2024-03-21"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":318,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":48888,"employees":102,"production":1031087},"2026-Q1":{"hours":59239,"employees":124,"production":1205153},"2025-Q4":{"hours":65826,"employees":130,"production":1338117},"2025-Q3":{"hours":72023,"employees":111,"production":1908769},"2025-Q2":{"hours":77381,"employees":141,"production":1526574},"2025-Q1":{"hours":61340,"employees":135,"production":2039860},"2024-Q4":{"hours":56964,"employees":131,"production":1725223},"2024-Q3":{"hours":60382,"employees":153,"production":1874113},"2024-Q2":{"hours":76356,"employees":162,"production":1345876},"2024-Q1":{"hours":83878,"employees":272,"production":1807358},"2023-Q4":{"hours":79979,"employees":175,"production":2436795},"2023-Q3":{"hours":108309,"employees":215,"production":3077772}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":80,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":435367,"employees":198,"production":14517853},"2018":{"hours":405754,"employees":191,"production":13508689},"2019":{"hours":547581,"employees":237,"production":17633296},"2020":{"hours":375894,"employees":176,"production":9699282},"2021":{"hours":354240,"employees":177,"production":10639487},"2022":{"hours":512400,"employees":246,"production":18233969},"2023":{"hours":472379,"employees":221,"production":12462134},"2024":{"hours":277580,"employees":180,"production":6752570},"2025":{"hours":276570,"employees":129,"production":6813320},"2026":{"hours":108127,"employees":114,"production":2236240}},"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":204,"firstDate":"2000-03-07","lastDate":"2026-09-22","metrics":{"recentRows":54,"doseOver100":14,"actDoseTotal":8329,"pelDoseTotal":4217},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"274900","EVENT_NO":"F010EF7","SURVEY_DATE":"09/22/2026","OCCUPATION_CD_DESC":"OILER/GREASER","MACHINE_CD":"40","ACT_DOSE_85":"20","PEL_DOSE_90":"7","SURVEY_TYPE":"I","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"274899","EVENT_NO":"F010EF7","SURVEY_DATE":"09/22/2026","OCCUPATION_CD_DESC":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","MACHINE_CD":"39","ACT_DOSE_85":"10","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"274898","EVENT_NO":"F010EF7","SURVEY_DATE":"09/22/2026","OCCUPATION_CD_DESC":"ROAD GRADER OPERATOR","MACHINE_CD":"28","ACT_DOSE_85":"30","PEL_DOSE_90":"5","SURVEY_TYPE":"I","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"274897","EVENT_NO":"F010EF7","SURVEY_DATE":"09/22/2026","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","ACT_DOSE_85":"23","PEL_DOSE_90":"4","SURVEY_TYPE":"I","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"274893","EVENT_NO":"F00F36F","SURVEY_DATE":"02/26/2026","OCCUPATION_CD_DESC":"HIGHWALL DRILL OPERATOR","MACHINE_CD":"21","ACT_DOSE_85":"7","PEL_DOSE_90":"2","SURVEY_TYPE":"I","sourceDate":"2026-02-26"},{"SOURCE_ROW_NUMBER":"274892","EVENT_NO":"F00F36F","SURVEY_DATE":"02/20/2026","OCCUPATION_CD_DESC":"REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE","MACHINE_CD":"39","ACT_DOSE_85":"2","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"274891","EVENT_NO":"F00F36F","SURVEY_DATE":"02/20/2026","OCCUPATION_CD_DESC":"ROAD GRADER OPERATOR","MACHINE_CD":"28","ACT_DOSE_85":"3","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"274890","EVENT_NO":"F00F36F","SURVEY_DATE":"02/20/2026","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","ACT_DOSE_85":"5","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"274889","EVENT_NO":"F00F36F","SURVEY_DATE":"02/20/2026","OCCUPATION_CD_DESC":"BULLDOZER OPERATOR","MACHINE_CD":"03","ACT_DOSE_85":"16","PEL_DOSE_90":"1","SURVEY_TYPE":"I","sourceDate":"2026-02-20"},{"SOURCE_ROW_NUMBER":"274888","EVENT_NO":"F0065C6","SURVEY_DATE":"09/18/2025","OCCUPATION_CD_DESC":"OILER/GREASER","MACHINE_CD":"40","ACT_DOSE_85":"32","PEL_DOSE_90":"16","SURVEY_TYPE":"I","sourceDate":"2025-09-18"},{"SOURCE_ROW_NUMBER":"274887","EVENT_NO":"F0065C6","SURVEY_DATE":"09/18/2025","OCCUPATION_CD_DESC":"SILO OPERATOR","MACHINE_CD":"40","ACT_DOSE_85":"1","PEL_DOSE_90":"0","SURVEY_TYPE":"I","sourceDate":"2025-09-18"},{"SOURCE_ROW_NUMBER":"274886","EVENT_NO":"F0065C6","SURVEY_DATE":"09/18/2025","OCCUPATION_CD_DESC":"HIGHWALL DRILL OPERATOR","MACHINE_CD":"21","ACT_DOSE_85":"20","PEL_DOSE_90":"8","SURVEY_TYPE":"I","sourceDate":"2025-09-18"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":27,"firstDate":"2000-07-12","lastDate":"2026-09-22","metrics":{"recentRows":14,"voidSamples":0,"maxQuartzPct":17.6,"validSamples":27,"quartzPctTotal":183.5},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"153783","CASSETTE_NO":"58000938","SAMPLE_DT":"09/22/2026","QUARTZ_PCT":"03.7","QUARTZ_MICROGRAMS":"8","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-09-22"},{"SOURCE_ROW_NUMBER":"85760","CASSETTE_NO":"58541956","SAMPLE_DT":"02/26/2026","QUARTZ_PCT":"01.1","QUARTZ_MICROGRAMS":"7","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2026-02-26"},{"SOURCE_ROW_NUMBER":"12343","CASSETTE_NO":"58486840","SAMPLE_DT":"10/24/2024","QUARTZ_PCT":"09.6","QUARTZ_MICROGRAMS":"12","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2024-10-24"},{"SOURCE_ROW_NUMBER":"166785","CASSETTE_NO":"58324930","SAMPLE_DT":"09/19/2024","QUARTZ_PCT":"05.1","QUARTZ_MICROGRAMS":"9","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2024-09-19"},{"SOURCE_ROW_NUMBER":"52533","CASSETTE_NO":"58486383","SAMPLE_DT":"09/17/2024","QUARTZ_PCT":"06.4","QUARTZ_MICROGRAMS":"10","OCC_CODE_DESC":"BULLDOZER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2024-09-17"},{"SOURCE_ROW_NUMBER":"113705","CASSETTE_NO":"58472657","SAMPLE_DT":"02/21/2024","QUARTZ_PCT":"08.6","QUARTZ_MICROGRAMS":"13","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2024-02-21"},{"SOURCE_ROW_NUMBER":"22055","CASSETTE_NO":"58447930","SAMPLE_DT":"04/24/2023","QUARTZ_PCT":"06.9","QUARTZ_MICROGRAMS":"8","OCC_CODE_DESC":"BULLDOZER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2023-04-24"},{"SOURCE_ROW_NUMBER":"103257","CASSETTE_NO":"58447054","SAMPLE_DT":"12/09/2022","QUARTZ_PCT":"03.9","QUARTZ_MICROGRAMS":"4","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2022-12-09"},{"SOURCE_ROW_NUMBER":"67914","CASSETTE_NO":"58447053","SAMPLE_DT":"12/09/2022","QUARTZ_PCT":"08.2","QUARTZ_MICROGRAMS":"13","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2022-12-09"},{"SOURCE_ROW_NUMBER":"100255","CASSETTE_NO":"58417212","SAMPLE_DT":"02/15/2022","QUARTZ_PCT":"09.6","QUARTZ_MICROGRAMS":"34","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2022-02-15"},{"SOURCE_ROW_NUMBER":"52209","CASSETTE_NO":"58417186","SAMPLE_DT":"02/15/2022","QUARTZ_PCT":"03.0","QUARTZ_MICROGRAMS":"19","OCC_CODE_DESC":"HIGHWALL DRILL OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2022-02-15"},{"SOURCE_ROW_NUMBER":"7825","CASSETTE_NO":"58417185","SAMPLE_DT":"02/15/2022","QUARTZ_PCT":"09.8","QUARTZ_MICROGRAMS":"9","OCC_CODE_DESC":"BULLDOZER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2022-02-15"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":431,"firstDate":"2001-01-22","lastDate":"2026-09-25","metrics":{"ss":72,"amountDue":185493,"contested":0,"amountPaid":146819.99,"recentRows":154,"section104d":0,"unterminated":0,"proposedPenalty":217240},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"3057517","VIOLATION_NO":"5034574","VIOLATION_ISSUE_DT":"09/25/2026","SIG_SUB":"N","PART_SECTION":"77.404(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/25/2026","CONTESTED_IND":"N","sourceDate":"2026-09-25"},{"SOURCE_ROW_NUMBER":"3057515","VIOLATION_NO":"5033804","VIOLATION_ISSUE_DT":"09/24/2026","SIG_SUB":"Y","PART_SECTION":"77.1104","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/25/2026","CONTESTED_IND":"N","sourceDate":"2026-09-24"},{"SOURCE_ROW_NUMBER":"3057514","VIOLATION_NO":"5033803","VIOLATION_ISSUE_DT":"09/24/2026","SIG_SUB":"N","PART_SECTION":"77.410(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/25/2026","CONTESTED_IND":"N","sourceDate":"2026-09-24"},{"SOURCE_ROW_NUMBER":"3057513","VIOLATION_NO":"5033802","VIOLATION_ISSUE_DT":"09/24/2026","SIG_SUB":"Y","PART_SECTION":"77.1104","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/24/2026","CONTESTED_IND":"N","sourceDate":"2026-09-24"},{"SOURCE_ROW_NUMBER":"3057512","VIOLATION_NO":"5033801","VIOLATION_ISSUE_DT":"09/23/2026","SIG_SUB":"N","PART_SECTION":"77.512","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/23/2026","CONTESTED_IND":"N","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"3057511","VIOLATION_NO":"5033800","VIOLATION_ISSUE_DT":"09/23/2026","SIG_SUB":"N","PART_SECTION":"77.1303(g)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/23/2026","CONTESTED_IND":"N","sourceDate":"2026-09-23"},{"SOURCE_ROW_NUMBER":"3057510","VIOLATION_NO":"5033799","VIOLATION_ISSUE_DT":"09/21/2026","SIG_SUB":"N","PART_SECTION":"77.904","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/21/2026","CONTESTED_IND":"N","sourceDate":"2026-09-21"},{"SOURCE_ROW_NUMBER":"3057516","VIOLATION_NO":"5034569","VIOLATION_ISSUE_DT":"09/14/2026","SIG_SUB":"N","PART_SECTION":"77.807","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/14/2026","CONTESTED_IND":"N","sourceDate":"2026-09-14"},{"SOURCE_ROW_NUMBER":"3057509","VIOLATION_NO":"5033798","VIOLATION_ISSUE_DT":"09/14/2026","SIG_SUB":"N","PART_SECTION":"77.904","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/14/2026","CONTESTED_IND":"N","sourceDate":"2026-09-14"},{"SOURCE_ROW_NUMBER":"3057508","VIOLATION_NO":"5033797","VIOLATION_ISSUE_DT":"09/14/2026","SIG_SUB":"N","PART_SECTION":"77.1101(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/14/2026","CONTESTED_IND":"N","sourceDate":"2026-09-14"},{"SOURCE_ROW_NUMBER":"3057263","VIOLATION_NO":"9732831","VIOLATION_ISSUE_DT":"03/04/2026","SIG_SUB":"Y","PART_SECTION":"77.404(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"03/05/2026","PROPOSED_PENALTY":"755","AMOUNT_DUE":"755","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-03-04"},{"SOURCE_ROW_NUMBER":"3057262","VIOLATION_NO":"9732830","VIOLATION_ISSUE_DT":"03/04/2026","SIG_SUB":"N","PART_SECTION":"77.1110","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"03/05/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-03-04"}]}],"safety":{"href":"/api/v1/mines/4801200/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4801200/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":{"averageEmployees":180,"companyType":"Independent Producer Operator","components":[{"averageEmployees":180,"laborHours":277580,"mineType":"Surface","productionTons":6752570}],"county":"Campbell","laborHours":277580,"mineName":"Buckskin Mine","mineType":"Surface","mshaId":"4801200","operatingAddress":"P.O. Box 3027, Gillette, WY 82717","operatingCompany":"Buckskin Mining Company","operationType":"Mine and Preparation Plant","productionTons":6752570,"reportedRows":1,"sourceUrl":"https://www.eia.gov/coal/data/public/xls/coalpublic2024.xlsx","state":"Wyoming","status":"Active","supplyRegion":"Powder River Basin","union":"","year":2024},"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.404","heading":"Machinery and equipment; operation and maintenance.","id":"77.404","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Safeguards for Mechanical Equipment","text":"(a) Mobile 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 trained in the use of and 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 while in motion where a hazard exists, unless equipped with extended fittings or cups.","occurrenceCount":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1104","heading":"Accumulations of combustible materials.","id":"77.1104","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104","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":"Combustible materials, grease, lubricants, paints, or flammable liquids shall not be allowed to accumulate where they can create a fire hazard.","occurrenceCount":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.410","heading":"Mobile equipment; automatic warning devices.","id":"77.410","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.410","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Safeguards for Mechanical Equipment","text":"(a) Mobile equipment such as front-end loaders, forklifts, tractors, graders, and trucks, except pickup trucks with an unobstructed rear view, shall be equipped with a warning device that—\n\n(1) Gives an audible alarm when the equipment is put in reverse; or\n\n(2) Uses infrared light, ultrasonic waves, radar, or other effective devices to detect objects or persons at the rear of the equipment, and sounds an audible alarm when a person or object is detected. This type of discriminating warning device shall—\n\n(i) Have a sensing area of a sufficient size that would allow endangered persons adequate time to get out of the danger zone.\n\n(ii) Give audible and visual alarms inside the operator's compartment and an audible alarm outside of the operator's compartment when a person or object is detected in the sensing area; and\n\n(iii) When the equipment is put in reverse, activate and give a one-time audible and visual alarm inside the operator's compartment and a one-time audible alarm outside the operator's compartment.\n\n(b) Alarms shall be audible above the surrounding noise levels.\n\n(c) Warning devices shall be maintained in functional condition.\n\n(d) An automatic reverse-activated strobe light may be substituted for an audible alarm when mobile equipment is operated at night.\n\n[54 FR 30517, July 20, 1989]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.512","heading":"Inspection and cover plates.","id":"77.512","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.512","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":"Inspection and cover plates on electrical equipment shall be kept in place at all times except during testing or repairs.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1303","heading":"Explosives, handling and use.","id":"77.1303","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-N/section-77.1303","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":"N","subpartHeading":"Subpart N—Explosives and Blasting","text":"(a) Persons who use or handle explosives or detonators shall be experienced men who understand the hazards involved; trainees shall do such work only under the supervision of and in the immediate presence of experienced men.\n\n(b) Blasting operations shall be under the direct control of authorized persons.\n\n(c) Substantial nonconductive closed containers shall be used to carry explosives, other than blasting agents to the blasting site.\n\n(d) Damaged or deteriorated explosives or detonators shall be destroyed in a safe manner.\n\n(e) Where electric blasting is to be performed, electric circuits to equipment in the immediate area to be blasted shall be deenergized before explosives or detonators are brought into the area; the power shall not be turned on again until after the shots are fired.\n\n(f) Explosives shall be kept separated from detonators until charging is started.\n\n(g) Areas in which charged holes are awaiting firing shall be guarded, or barricaded and posted, or flagged against unauthorized entry.\n\n(h) Ample warning shall be given before blasts are fired. All persons shall be cleared and removed from the blasting area unless suitable blasting shelters are provided to protect men endangered by concussion or flyrock from blasting.\n\n(i) Lead wires and blasting lines shall not be strung across power conductors, pipelines, railroad tracks, or within 20 feet of bare powerlines. They shall be protected from sources of static or other electrical contact.\n\n(j) For the protection of underground workers, special precautions shall be taken when blasting in close proximity to underground operations, and no blasting shall be done that would be hazardous to persons working underground.\n\n(k) Holes shall not be drilled where there is danger of intersecting a charged or misfired hole.\n\n(l) Only wooden or other nonsparking implements shall be used to punch holes in an explosive cartridge.\n\n(m) Tamping poles shall be blunt and squared at one end and made of wood, nonsparking material, or of special plastic acceptable to the Mine Safety and Health Administration.\n\n(n) Delay connectors for firing detonating cord shall be treated and handled with the same safety precautions as blasting caps and electric detonators.\n\n(o) Capped primers shall be made up at the time of charging and as close to the blasting site as conditions allow.\n\n(p) A capped primer shall be prepared so that the detonator is contained securely and is completely embedded within the explosive cartridge.\n\n(q) No tamping shall be done directly on a capped primer.\n\n(r) Detonating cord shall not be used if it has been kinked, bent, or otherwise handled in such a manner that the train of detonation may be interrupted.\n\n(s) Fuse shall not be used if it has been kinked, bent sharply, or handled roughly in such a manner that the train of deflagration may be interrupted.\n\n(t) Blasting caps shall be crimped to fuses only with implements designed for that specific purpose.\n\n(u) When firing from 1 to 15 blast-holes with safety fuse ignited individually using hand-held lighters, the fuses shall be of such lengths to provide the minimum burning time specified in the following table for a particular size round:\n\nNumber of holes in a round Minimum burning time, minutes 1 2 2 to 5 22⁄3 6 to 10 31⁄3 11 to 15 5\n\nIn no case shall any 40-second-per-foot safety fuse less than 36 inches long or any 30-second-per-foot safety fuse less than 48 inches long be used.\n\n(v) The burning rate of the safety fuse in use at any time shall be measured, posted in conspicuous locations, and brought to the attention of all men concerned with blasting.\n\n(w) Electric detonators of different brands shall not be used in the same round.\n\n(x) Adequate priming shall be employed to guard against misfires, increased toxic fumes, and poor performance.\n\n(y) Except when being tested with a blasting galvanometer:\n\n(1) Electric detonators shall be kept shunted until they are being connected to the blasting line or wired into a blasting round.\n\n(2) Wired rounds shall be kept shunted until they are being connected to the blasting line.\n\n(3) Blasting lines shall be kept shunted until immediately before blasting.\n\n(z) Completely wired rounds shall be tested with a blasting galvanometer before connections are made to the blasting line.\n\n(aa) Permanent blasting lines shall be properly supported, insulated, and kept in good repair.\n\n(bb) At least a 5-foot airgap shall be provided between the blasting circuit and the power circuit.\n\n(cc) When instantaneous blasting is performed, the double-trunkline or loop system shall be used in detonating-cord blasting.\n\n(dd) When instantaneous blasting is performed, trunklines, in multiple-row blasts, shall make one or more complete loops, with crossties between loops at intervals of not over 200 feet.\n\n(ee) All detonating cord knots shall be tight and all connections shall be kept at right angles to the trunklines.\n\n(ff) Power sources shall be suitable for the number of electrical detonators to be fired and for the type of circuits used.\n\n(gg) Electric circuits from the blasting switches to the blast area shall not be grounded.\n\n(hh) Safety switches and blasting switches shall be labeled, encased in boxes, and arranged so that the covers of the boxes cannot be closed with the switches in the through-circuit or firing position.\n\n(ii) Blasting switches shall be locked in the open position, except when closed to fire the blast. Lead wires shall not be connected to the blasting switch until the shot is ready to be fired.\n\n(jj) The key or other control to an electrical firing device shall be entrusted only to the person designated to fire the round or rounds.\n\n(kk) If branch circuits are used when blasts are fired from power circuits, safety switches located at safe distances from the blast areas shall be provided in addition to the main blasting switch.\n\n(ll) Misfires shall be reported to the proper supervisor and shall be disposed of safely before any other work is performed in that blasting area.\n\n(mm) When safety fuse has been used, men shall not return to misfired holes for at least 30 minutes.\n\n(nn) When electric blasting caps have been used, men shall not return to misfired holes for at least 15 minutes.\n\n(oo) If explosives are suspected of burning in a hole, all persons in the endangered area shall move to a safe location and no one should return to the hole until the danger has passed, but in no case within 1 hour.\n\n(pp) Blasted areas shall be examined for undetonated explosives after each blast and undetonated explosives found shall be disposed of safely.\n\n(qq) Blasted areas shall not be reentered by any person after firing until such time as concentrations of smoke, dust, or fumes have been reduced to safe limits.\n\n(rr) In secondary blasting, if more than one shot is to be fired at one time, blasting shall be done electrically or with detonating cord.\n\n(ss) Unused explosives and detonators shall be moved to a safe location as soon as charging operations are completed.\n\n(tt) When electric detonators are used, charging shall be stopped immediately when the presence of static electricity or stray currents is detected; the condition shall be remedied before charging is resumed.\n\n(uu) When electric detonators are used, charging shall be suspended and men withdrawn to a safe location upon the approach of an electrical storm.","occurrenceCount":1},{"chapter":"I","heading":"Identification of circuit breakers.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.904","part":"77","subchapter":"O","subpart":"J","id":"77.904","citation":"30 CFR 77.904","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":2},{"chapter":"I","heading":"Installation of high-voltage transmission cables.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-I/section-77.807","part":"77","subchapter":"O","subpart":"I","id":"77.807","citation":"30 CFR 77.807","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","heading":"Escape and evacuation; plan.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1101","part":"77","subchapter":"O","subpart":"L","id":"77.1101","citation":"30 CFR 77.1101","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1110","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4801200","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}