{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4406787","name":"Mine #3","status":"Abandoned and Sealed","status_date":"2005-05-18","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"VA","county":"Dickenson","nearest_town":"Clintwood","operator_id":"P24642","operator_name":"Champion Coal Co Inc","controller_id":"C16054","controller_name":"Garrick  Miller","district":"C05","office":"Norton VA Field Office","employees":0,"latitude":37.173611,"longitude":-82.484722},"coverage":{"contributingSources":15,"registeredSources":20,"sourceRows":819},"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":"4406787","name":"Mine #3"},"operator":{"type":"operator","id":"P24642","name":"Champion Coal Co Inc"},"controller":{"type":"controller","id":"C16054","name":"Garrick  Miller"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02467","name":"Dennis B  Sutherland et al"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C02467|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02467","name":"Dennis B  Sutherland et al"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1979-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C02467|1979-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13728","name":"Charles  Hunt"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1993-09-01","validTo":"2000-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C13728|1993-09-01|2000-03-07"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02876","name":"Lambert Coal Company Inc"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1994-12-01","validTo":"1996-07-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P02876|1994-12-01|1996-07-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02467","name":"Dennis B  Sutherland et al"},"object":{"type":"operator","id":"P02876","name":"Lambert Coal Company Inc"},"validFrom":"1994-12-01","validTo":"1996-07-29","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P02876|1994-12-01|C02467|1950-01-01|58576"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02467","name":"Arlie J  Lambert et al"},"object":{"type":"operator","id":"P02876","name":"Lambert Coal Company Inc"},"validFrom":"1994-12-01","validTo":"1996-07-29","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P02876|1994-12-01|C02467|1950-01-01|58577"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23554","name":"L & J Equipment Company"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1996-07-30","validTo":"1997-03-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P23554|1996-07-30|1997-03-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C09311","name":"Fred  McGlothlin et al"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1996-07-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C09311|1996-07-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C09311","name":"Fred  McGlothlin et al"},"object":{"type":"operator","id":"P23554","name":"L & J Equipment Company"},"validFrom":"1996-07-30","validTo":"1997-03-24","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P23554|1996-07-30|C09311|1996-07-30|79332"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22558","name":"J Cress Enterprises Inc"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"1997-03-25","validTo":"2000-03-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P22558|1997-03-25|2000-03-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13728","name":"Charles  Hunt"},"object":{"type":"operator","id":"P22558","name":"J Cress Enterprises Inc"},"validFrom":"1997-03-25","validTo":"2000-03-07","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P22558|1997-03-25|C13728|1993-09-01|90948"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24355","name":"Trico Inc"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2000-03-08","validTo":"2000-10-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24355|2000-03-08|2000-10-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15364","name":"Mason  Whited"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2000-03-08","validTo":"2000-10-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C15364|2000-03-08|2000-10-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15364","name":"Mason  Whited"},"object":{"type":"operator","id":"P24355","name":"Trico Inc"},"validFrom":"2000-03-08","validTo":"2000-10-01","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24355|2000-03-08|C15364|2000-03-08|95409"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24518","name":"Outback Mining Llc"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2000-10-02","validTo":"2001-10-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24518|2000-10-02|2001-10-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15990","name":"James  Meadows  et al"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2000-10-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C15990|2000-10-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15990","name":"James  Meadows  et al"},"object":{"type":"operator","id":"P24518","name":"Outback Mining Llc"},"validFrom":"2000-10-02","validTo":"2001-10-17","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24518|2000-10-02|C15990|2000-10-02|97930"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C16054","name":"Garrick  Miller"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2001-04-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|C16054|2001-04-23|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24661","name":"GBL Enterprises, Inc."},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2001-10-18","validTo":"2003-10-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24661|2001-10-18|2003-10-06"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02467","name":"Dennis B  Sutherland et al"},"object":{"type":"operator","id":"P24661","name":"GBL Enterprises, Inc."},"validFrom":"2001-10-18","validTo":"2003-10-06","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24661|2001-10-18|C02467|1979-04-01|58582"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02467","name":"Arlie J  Lambert et al"},"object":{"type":"operator","id":"P24661","name":"GBL Enterprises, Inc."},"validFrom":"2001-10-18","validTo":"2003-10-06","current":false,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24661|2001-10-18|C02467|1979-04-01|58583"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24642","name":"Champion Coal Co Inc"},"object":{"type":"mine","id":"4406787","name":"Mine #3"},"validFrom":"2003-10-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24642|2003-10-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C16054","name":"Garrick  Miller"},"object":{"type":"operator","id":"P24642","name":"Champion Coal Co Inc"},"validFrom":"2003-10-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406787|P24642|2003-10-07|C16054|2001-04-23|98194"}}],"coverage":{"historyRecords":9,"edgeCount":23,"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":6,"firstDate":"2000-06-12","lastDate":"2005-02-17","metrics":{"daysLost":236,"injuries":6,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"63389","DOCUMENT_NO":"220050540050","ACCIDENT_DT":"02/17/2005","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"MACHINERY","ACCIDENT_TYPE":"Struck by flying object","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"EE was cutting lug nuts off of mantrip when inflated tire expanded & exploded due to heat from torches. Tire exploded blowing dirt & debris into face & eyes. Safety glasses were being worn at time of accident.","sourceDate":"2005-02-17"},{"SOURCE_ROW_NUMBER":"205449","DOCUMENT_NO":"220012880026","ACCIDENT_DT":"09/27/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"57","NARRATIVE":"SPLICING SHUTTLE CAR CABLE, WIRE FROM CABLE PUNCTURE BACK OFLEFT HAND. @ 0130 A 9\" DIAMETER PIECE OF ROCK FELL AND STRUCK INJURED HAND ON SAME INJURED AREA WHERE WIRE ENTERED HAND.","sourceDate":"2001-09-27"},{"SOURCE_ROW_NUMBER":"97757","DOCUMENT_NO":"220010290153","ACCIDENT_DT":"12/28/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Caught in, under or between NEC","OCCUPATION":"Miner, NEC","NO_INJURIES":"1","DAYS_LOST":"44","NARRATIVE":"EE BECAME ENTANGLED IN BELT DRIVE DISLOCATED SHOULDER BROKE CHEEK BONE","sourceDate":"2000-12-28"},{"SOURCE_ROW_NUMBER":"196686","DOCUMENT_NO":"220001780161","ACCIDENT_DT":"06/21/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall to the walkway or working surface","OCCUPATION":"Miner, NEC","NO_INJURIES":"1","DAYS_LOST":"45","NARRATIVE":"EMPLOYEE WAS CARRYING BOLT DOWN STEPS AND FELL HURTING BACK, NECK, KNEE.","sourceDate":"2000-06-21"},{"SOURCE_ROW_NUMBER":"71998","DOCUMENT_NO":"220001780162","ACCIDENT_DT":"06/21/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall to the walkway or working surface","OCCUPATION":"Miner, NEC","NO_INJURIES":"1","DAYS_LOST":"45","NARRATIVE":"EMPLOYEE WAS CARRYING BOLT DOWN STEPS AND FELL HURT BACK AND KNEE.","sourceDate":"2000-06-21"},{"SOURCE_ROW_NUMBER":"239931","DOCUMENT_NO":"220001780197","ACCIDENT_DT":"06/12/2000","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Shuttle car operator, Mantrip operator, Ramcar operator, Rail runner, Buggy operator","NO_INJURIES":"1","DAYS_LOST":"45","NARRATIVE":"EMPLOYEE WAS PULLING MINER CABLE AND FELT SHARP PAIN IN BACK.","sourceDate":"2000-06-12"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2005-05-18","lastDate":"2005-05-18","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":182,"firstDate":"2000-03-14","lastDate":"2005-02-28","metrics":{"ss":74,"delinquent":182,"recentRows":0,"paidPenalty":1789,"proposedPenalty":29995,"currentAssessment":29995},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"893779","VIOLATION_NO":"7344131","ISSUE_DT":"02/28/2005","CFR_STANDARD_CD":"77.1607(l)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"268.00","CURRENT_ASSESSMENT_AMT":"268.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-28"},{"SOURCE_ROW_NUMBER":"893778","VIOLATION_NO":"7344130","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.1713-1(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893777","VIOLATION_NO":"7344129","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.1722(b)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"191.00","CURRENT_ASSESSMENT_AMT":"191.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893776","VIOLATION_NO":"7344128","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.1722(b)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"191.00","CURRENT_ASSESSMENT_AMT":"191.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893775","VIOLATION_NO":"7344127","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.523-3(b)(3)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"191.00","CURRENT_ASSESSMENT_AMT":"191.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893774","VIOLATION_NO":"7344126","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.503","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893773","VIOLATION_NO":"7344125","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.503","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893772","VIOLATION_NO":"7344124","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.1722(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"191.00","CURRENT_ASSESSMENT_AMT":"191.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"893771","VIOLATION_NO":"7344123","ISSUE_DT":"02/22/2005","CFR_STANDARD_CD":"75.333(d)(3)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"878664","VIOLATION_NO":"9870341","ISSUE_DT":"02/17/2005","CFR_STANDARD_CD":"70.208(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-02-17"},{"SOURCE_ROW_NUMBER":"917142","VIOLATION_NO":"7330393","ISSUE_DT":"12/15/2004","CFR_STANDARD_CD":"75.1103-11","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-12-15"},{"SOURCE_ROW_NUMBER":"917141","VIOLATION_NO":"7330392","ISSUE_DT":"12/09/2004","CFR_STANDARD_CD":"75.333(c)(3)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"286.00","CURRENT_ASSESSMENT_AMT":"286.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2004-12-09"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":214,"firstDate":"2000-05-31","lastDate":"2005-02-10","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":36,"validSamples":178,"maxConcentration":8.136,"concentrationTotal":119.466},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"720596","CASS_NUM":"50784604","SMP_TAKEN_DT":"2/10/2005","CONC":".185","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":"2005-02-10"},{"SOURCE_ROW_NUMBER":"1448168","CASS_NUM":"50784628","SMP_TAKEN_DT":"2/9/2005","CONC":".178","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":"2005-02-09"},{"SOURCE_ROW_NUMBER":"818258","CASS_NUM":"50784629","SMP_TAKEN_DT":"2/4/2005","CONC":".152","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-02-04"},{"SOURCE_ROW_NUMBER":"1067224","CASS_NUM":"50784626","SMP_TAKEN_DT":"2/3/2005","CONC":".255","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"DA NOT IN PRODUCING STATUS","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-02-03"},{"SOURCE_ROW_NUMBER":"1106066","CASS_NUM":"50784627","SMP_TAKEN_DT":"2/2/2005","CONC":".214","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-02-02"},{"SOURCE_ROW_NUMBER":"844722","CASS_NUM":"50784616","SMP_TAKEN_DT":"2/1/2005","CONC":".33","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":"2005-02-01"},{"SOURCE_ROW_NUMBER":"1258539","CASS_NUM":"50784619","SMP_TAKEN_DT":"1/31/2005","CONC":".126","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":"2005-01-31"},{"SOURCE_ROW_NUMBER":"953048","CASS_NUM":"50784624","SMP_TAKEN_DT":"1/28/2005","CONC":".501","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":"2005-01-28"},{"SOURCE_ROW_NUMBER":"1339052","CASS_NUM":"50784608","SMP_TAKEN_DT":"1/27/2005","CONC":".498","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"INVALID PRODUCTION","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-01-27"},{"SOURCE_ROW_NUMBER":"883910","CASS_NUM":"50784615","SMP_TAKEN_DT":"1/26/2005","CONC":".326","SMP_TYPE_CD_DESC":"INVALID SAMPLE TYPE","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"INVALID SAMPLE TYPE","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2005-01-26"},{"SOURCE_ROW_NUMBER":"1452317","CASS_NUM":"57553400","SMP_TAKEN_DT":"1/20/2005","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":"2005-01-20"},{"SOURCE_ROW_NUMBER":"1423108","CASS_NUM":"57553384","SMP_TAKEN_DT":"1/20/2005","CONC":".421","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":"2005-01-20"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":1,"firstDate":"2001-02-07","lastDate":"2001-02-07","metrics":{"linkedIssuances":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":41,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":9,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":9,"firstDate":"1994-12-01","lastDate":"2003-10-07","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":8},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":73,"firstDate":"2000-02-25","lastDate":"2005-04-04","metrics":{"inspectors":86,"recentRows":0,"onSiteHours":770.75,"inspectionHours":1411.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"330977","EVENT_NO":"4125297","INSPECTION_BEGIN_DT":"04/04/2005","INSPECTION_END_DT":"04/05/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2005-04-04"},{"SOURCE_ROW_NUMBER":"468582","EVENT_NO":"4125873","INSPECTION_BEGIN_DT":"02/16/2005","INSPECTION_END_DT":"02/18/2005","ACTIVITY_CODE":"CED","ACTIVITY":"RESP DUST TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1.75","sourceDate":"2005-02-16"},{"SOURCE_ROW_NUMBER":"411881","EVENT_NO":"4128179","INSPECTION_BEGIN_DT":"02/14/2005","INSPECTION_END_DT":"02/16/2005","ACTIVITY_CODE":"CDA","ACTIVITY":"ROOF CONTROL SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2005-02-14"},{"SOURCE_ROW_NUMBER":"728272","EVENT_NO":"4138892","INSPECTION_BEGIN_DT":"01/03/2005","INSPECTION_END_DT":"03/09/2005","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"70","SUM_TOTAL_ON_SITE_HOURS":"41.5","sourceDate":"2005-01-03"},{"SOURCE_ROW_NUMBER":"562323","EVENT_NO":"4132249","INSPECTION_BEGIN_DT":"11/15/2004","INSPECTION_END_DT":"11/15/2004","ACTIVITY_CODE":"CEC","ACTIVITY":"VENTILATION TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.5","SUM_TOTAL_ON_SITE_HOURS":"2.75","sourceDate":"2004-11-15"},{"SOURCE_ROW_NUMBER":"1139173","EVENT_NO":"4154248","INSPECTION_BEGIN_DT":"10/29/2004","INSPECTION_END_DT":"12/16/2004","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"45.5","SUM_TOTAL_ON_SITE_HOURS":"19.5","sourceDate":"2004-10-29"},{"SOURCE_ROW_NUMBER":"473218","EVENT_NO":"4125284","INSPECTION_BEGIN_DT":"10/28/2004","INSPECTION_END_DT":"11/05/2004","ACTIVITY_CODE":"CCC","ACTIVITY":"VENTILATION TECHNICAL INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"18","SUM_TOTAL_ON_SITE_HOURS":"12","sourceDate":"2004-10-28"},{"SOURCE_ROW_NUMBER":"218421","EVENT_NO":"4128137","INSPECTION_BEGIN_DT":"10/18/2004","INSPECTION_END_DT":"10/25/2004","ACTIVITY_CODE":"CCA","ACTIVITY":"ROOF CONTROL TECHNICAL INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2004-10-18"},{"SOURCE_ROW_NUMBER":"555997","EVENT_NO":"4156077","INSPECTION_BEGIN_DT":"09/23/2004","INSPECTION_END_DT":"10/21/2004","ACTIVITY_CODE":"BAB","ACTIVITY":"RESP DUST TECH INSP - U. G. MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"31","SUM_TOTAL_ON_SITE_HOURS":"20","sourceDate":"2004-09-23"},{"SOURCE_ROW_NUMBER":"1044425","EVENT_NO":"4154653","INSPECTION_BEGIN_DT":"07/28/2004","INSPECTION_END_DT":"09/30/2004","ACTIVITY_CODE":"BAB","ACTIVITY":"RESP DUST TECH INSP - U. G. MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"4.5","sourceDate":"2004-07-28"},{"SOURCE_ROW_NUMBER":"456523","EVENT_NO":"4154652","INSPECTION_BEGIN_DT":"07/28/2004","INSPECTION_END_DT":"09/30/2004","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"72.5","SUM_TOTAL_ON_SITE_HOURS":"38","sourceDate":"2004-07-28"},{"SOURCE_ROW_NUMBER":"106219","EVENT_NO":"4127916","INSPECTION_BEGIN_DT":"07/27/2004","INSPECTION_END_DT":"07/29/2004","ACTIVITY_CODE":"CDA","ACTIVITY":"ROOF CONTROL SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.5","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2004-07-27"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":50,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2005-Q2":{"hours":0,"employees":0,"production":0},"2005-Q1":{"hours":4630,"employees":16,"production":8128},"2004-Q4":{"hours":9746,"employees":20,"production":32489},"2004-Q3":{"hours":8304,"employees":18,"production":30133},"2004-Q2":{"hours":7874,"employees":17,"production":36154},"2004-Q1":{"hours":8984,"employees":16,"production":36658},"2003-Q4":{"hours":5844,"employees":16,"production":21210},"2003-Q3":{"hours":0,"employees":0,"production":0},"2003-Q2":{"hours":0,"employees":0,"production":0},"2003-Q1":{"hours":0,"employees":0,"production":0},"2002-Q4":{"hours":0,"employees":0,"production":0},"2002-Q3":{"hours":0,"employees":0,"production":0}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":13,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":3913,"employees":9,"production":26554},"2001":{"hours":19006,"employees":13,"production":41053},"2003":{"hours":5844,"employees":16,"production":21210},"2004":{"hours":34908,"employees":19,"production":135434},"2005":{"hours":4630,"employees":16,"production":8128}},"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":11,"firstDate":"2001-04-11","lastDate":"2004-09-30","metrics":{"recentRows":0,"doseOver100":2,"actDoseTotal":713,"pelDoseTotal":514},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"201302","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"SCOOP CAR OPERATOR","MACHINE_CD":"38","MANUFACTURER_CD":"098","ACT_DOSE_85":"49","PEL_DOSE_90":"40","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201301","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"ROOF BOLTER (SINGLE HEAD)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"45","PEL_DOSE_90":"18","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201300","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"ROOF BOLTER (SINGLE HEAD)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"48","PEL_DOSE_90":"34","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201299","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"08","MANUFACTURER_CD":"056","ACT_DOSE_85":"78","PEL_DOSE_90":"56","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201298","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"08","MANUFACTURER_CD":"056","ACT_DOSE_85":"122","PEL_DOSE_90":"109","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201297","EVENT_NO":"4154652","SURVEY_DATE":"09/30/2004","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"056","ACT_DOSE_85":"129","PEL_DOSE_90":"113","SURVEY_TYPE":"I","sourceDate":"2004-09-30"},{"SOURCE_ROW_NUMBER":"201296","EVENT_NO":"4137158","SURVEY_DATE":"04/11/2001","OCCUPATION_CD_DESC":"UTILITY MAN","MACHINE_CD":"38","MANUFACTURER_CD":"098","ACT_DOSE_85":"34","PEL_DOSE_90":"15","SURVEY_TYPE":"I","sourceDate":"2001-04-11"},{"SOURCE_ROW_NUMBER":"201295","EVENT_NO":"4137158","SURVEY_DATE":"04/11/2001","OCCUPATION_CD_DESC":"SCOOP CAR OPERATOR","MACHINE_CD":"38","MANUFACTURER_CD":"098","ACT_DOSE_85":"37","PEL_DOSE_90":"21","SURVEY_TYPE":"I","sourceDate":"2001-04-11"},{"SOURCE_ROW_NUMBER":"201294","EVENT_NO":"4137158","SURVEY_DATE":"04/11/2001","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","MACHINE_CD":"37","MANUFACTURER_CD":"058","ACT_DOSE_85":"45","PEL_DOSE_90":"24","SURVEY_TYPE":"I","sourceDate":"2001-04-11"},{"SOURCE_ROW_NUMBER":"201293","EVENT_NO":"4137158","SURVEY_DATE":"04/11/2001","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"058","ACT_DOSE_85":"56","PEL_DOSE_90":"40","SURVEY_TYPE":"I","sourceDate":"2001-04-11"},{"SOURCE_ROW_NUMBER":"201292","EVENT_NO":"4137158","SURVEY_DATE":"04/11/2001","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (OFF STANDARD)","MACHINE_CD":"37","MANUFACTURER_CD":"058","ACT_DOSE_85":"70","PEL_DOSE_90":"44","SURVEY_TYPE":"I","sourceDate":"2001-04-11"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":22,"firstDate":"2000-05-31","lastDate":"2004-09-27","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":8.9,"validSamples":22,"quartzPctTotal":145.4},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"62408","CASSETTE_NO":"57561917","SAMPLE_DT":"09/27/2004","QUARTZ_PCT":"06.5","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-09-27"},{"SOURCE_ROW_NUMBER":"15456","CASSETTE_NO":"57561906","SAMPLE_DT":"09/27/2004","QUARTZ_PCT":"05.3","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-09-27"},{"SOURCE_ROW_NUMBER":"45938","CASSETTE_NO":"57543311","SAMPLE_DT":"07/29/2004","QUARTZ_PCT":"08.0","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-07-29"},{"SOURCE_ROW_NUMBER":"143160","CASSETTE_NO":"57553080","SAMPLE_DT":"04/29/2004","QUARTZ_PCT":"07.2","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-04-29"},{"SOURCE_ROW_NUMBER":"152803","CASSETTE_NO":"50737164","SAMPLE_DT":"04/08/2004","QUARTZ_PCT":"04.1","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-04-08"},{"SOURCE_ROW_NUMBER":"26067","CASSETTE_NO":"57529462","SAMPLE_DT":"03/12/2004","QUARTZ_PCT":"07.5","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2004-03-12"},{"SOURCE_ROW_NUMBER":"135421","CASSETTE_NO":"57531145","SAMPLE_DT":"12/11/2003","QUARTZ_PCT":"03.4","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2003-12-11"},{"SOURCE_ROW_NUMBER":"110072","CASSETTE_NO":"57531069","SAMPLE_DT":"12/09/2003","QUARTZ_PCT":"06.8","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2003-12-09"},{"SOURCE_ROW_NUMBER":"26645","CASSETTE_NO":"57492510","SAMPLE_DT":"11/21/2003","QUARTZ_PCT":"05.3","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2003-11-21"},{"SOURCE_ROW_NUMBER":"15348","CASSETTE_NO":"57492508","SAMPLE_DT":"11/21/2003","QUARTZ_PCT":"06.7","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2003-11-21"},{"SOURCE_ROW_NUMBER":"63947","CASSETTE_NO":"57361255","SAMPLE_DT":"08/21/2001","QUARTZ_PCT":"07.3","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2001-08-21"},{"SOURCE_ROW_NUMBER":"148388","CASSETTE_NO":"57361695","SAMPLE_DT":"07/12/2001","QUARTZ_PCT":"06.7","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2001-07-12"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":186,"firstDate":"2000-03-14","lastDate":"2005-02-28","metrics":{"ss":74,"amountDue":29995,"contested":0,"amountPaid":1789,"recentRows":0,"section104d":7,"unterminated":4,"proposedPenalty":29995},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2362168","VIOLATION_NO":"7344131","VIOLATION_ISSUE_DT":"02/28/2005","SIG_SUB":"Y","PART_SECTION":"77.1607(l)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"268","AMOUNT_DUE":"268","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-28"},{"SOURCE_ROW_NUMBER":"2362167","VIOLATION_NO":"7344130","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"N","PART_SECTION":"75.1713-1(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362166","VIOLATION_NO":"7344129","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"Y","PART_SECTION":"75.1722(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"191","AMOUNT_DUE":"191","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362165","VIOLATION_NO":"7344128","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"Y","PART_SECTION":"75.1722(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"191","AMOUNT_DUE":"191","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362164","VIOLATION_NO":"7344127","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"Y","PART_SECTION":"75.523-3(b)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"191","AMOUNT_DUE":"191","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362163","VIOLATION_NO":"7344126","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"N","PART_SECTION":"75.503","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/22/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362162","VIOLATION_NO":"7344125","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"N","PART_SECTION":"75.503","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/22/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362161","VIOLATION_NO":"7344124","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"Y","PART_SECTION":"75.1722(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2005","PROPOSED_PENALTY":"191","AMOUNT_DUE":"191","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362160","VIOLATION_NO":"7344123","VIOLATION_ISSUE_DT":"02/22/2005","SIG_SUB":"N","PART_SECTION":"75.333(d)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"02/22/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-22"},{"SOURCE_ROW_NUMBER":"2362211","VIOLATION_NO":"9870341","VIOLATION_ISSUE_DT":"02/17/2005","SIG_SUB":"N","PART_SECTION":"70.208(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/17/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2005-02-17"},{"SOURCE_ROW_NUMBER":"2362336","VIOLATION_NO":"7330393","VIOLATION_ISSUE_DT":"12/15/2004","SIG_SUB":"N","PART_SECTION":"75.1103-11","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"6","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"12/15/2004","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2004-12-15"},{"SOURCE_ROW_NUMBER":"2362335","VIOLATION_NO":"7330392","VIOLATION_ISSUE_DT":"12/09/2004","SIG_SUB":"Y","PART_SECTION":"75.333(c)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"6","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/09/2004","PROPOSED_PENALTY":"286","AMOUNT_DUE":"286","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2004-12-09"}]}],"safety":{"href":"/api/v1/mines/4406787/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4406787/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1607","heading":"Loading and haulage equipment; operation.","id":"77.1607","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Vehicles shall follow at a safe distance; passing shall be limited to areas of adequate clearance and visibility.\n\n(b) Mobile equipment operators shall have full control of the equipment while it is in motion.\n\n(c) Equipment operating speeds shall be prudent and consistent with conditions of roadway, grades, clearance, visibility, traffic, and the type of equipment used.\n\n(d) Cabs of mobile equipment shall be kept free of extraneous materials.\n\n(e) Operators shall sit facing the direction of travel while operating equipment with dual controls.\n\n(f) When an equipment operator is present, men shall notify him before getting on or off equipment.\n\n(g) Equipment operators shall be certain, by signal or other means, that all persons are clear before starting or moving equipment.\n\n(h) Where possible, aerial tramways shall not be started until the tramway operator has ascertained that everyone is in the clear.\n\n(i) Dust control measures shall be taken where dust significantly reduces visibility of equipment operators.\n\n(j) Dippers, buckets, loading booms, or heavy suspended loads shall not be swung over the cabs of haulage vehicles until the drivers are out of the cabs and in safe locations, unless the trucks are designed specifically to protect the drivers from falling material.\n\n(k) Men shall not work or pass under the buckets or booms of loaders in operation.\n\n(l) Tires shall be deflated before repairs on them are started and adequate means shall be provided to prevent wheel locking rims from creating a hazard during tire inflation.\n\n(m) Electrically powered mobile equipment shall not be left unattended unless the master switch is in the off position, all operating controls are in the neutral position, and the brakes are set or other equivalent precautions are taken against rolling.\n\n(n) Mobile equipment shall not be left unattended unless the brakes are set. The wheels shall be turned into a bank or berm, or shall be blocked, when such equipment is parked on a grade.\n\n(o) Lights, flares, or other warning devices shall be posted when parked equipment creates a hazard to vehicular traffic.\n\n(p) Dippers, buckets, scraper blades, and similar movable parts shall be secured or lowered to the ground when not in use.\n\n(q) Shovel trailing cables shall not be moved with the shovel dipper unless cable slings or sleds are used.\n\n(r) Equipment which is to be hauled shall be loaded and protected so as to prevent sliding or spillage.\n\n(s) When moving between work areas, the equipment shall be secured in the travel position.\n\n(t) Any load extending more than 4 feet beyond the rear of the vehicle body should be marked clearly with a red flag by day and a red light at night.\n\n(u) Tow bars shall be used to tow heavy equipment and a safety chain shall be used in conjunction with each tow bar.\n\n(v) Railroad cars shall be kept under control at all times by the car dropper. Cars shall be dropped at a safe rate and in a manner that will insure that the car dropper maintains a safe position while working and traveling around the cars.\n\n(w) Railroad cars shall not be coupled or uncoupled manually from the inside of curves unless the railroad and cars are so designed to eliminate any hazard from coupling or uncoupling cars from inside of curves.\n\n(x) Persons shall wear safety belts when dropping railroad cars.\n\n(y) Railcars shall not be left on sidetracks unless ample clearance is provided for traffic on adjacent tracks.\n\n(z) Parked railcars, unless held effectively by brakes, shall be blocked securely.\n\n(aa) Railroad cars and all trucks shall be trimmed properly when they have been loaded higher than the confines of their cargo space.\n\n(bb) When the entire length of a conveyor is visible from the starting switch, the operator shall visually check to make certain that all persons are in the clear before starting the conveyor. When the entire length of the conveyor is not visible from the starting switch, a positive audible or visible warning system shall be installed and operated to warn persons that the conveyor will be started.\n\n(cc) Unguarded conveyors with walkways shall be equipped with emergency stop devices or cords along their full length.\n\n(dd) Adequate backstops or brakes shall be installed on inclined-conveyor drive units to prevent conveyors from running in reverse if a hazard to personnel would be caused.\n\n(ee) Aerial tram conveyor buckets shall not be overloaded, and feed shall be regulated to prevent spillage.","occurrenceCount":1},{"chapter":"I","heading":"Arrangements for emergency medical assistance and transportation for injured persons; agreements; reporting requirements; posting requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1713-1","part":"75","subchapter":"O","subpart":"R","id":"75.1713-1","citation":"30 CFR 75.1713-1","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},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1722","heading":"Mechanical equipment guards.","id":"75.1722","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1722","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) Gears; sprockets; chains; drive, head, tail, and takeup pulleys; flywheels; couplings, shafts; sawblades; fan inlets; and similar exposed moving machine parts which may be contacted by persons, and which may cause injury to persons shall be guarded.\n\n(b) Guards at conveyor-drive, conveyor-head, and conveyor-tail pulleys shall extend a distance sufficient to prevent a person from reaching behind the guard and becoming caught between the belt and the pulley.\n\n(c) Except when testing the machinery, guards shall be securely in place while machinery is being operated.\n\n[38 FR 4976, Feb. 23, 1973]","occurrenceCount":3},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.523-3","heading":"Automatic emergency-parking brakes.","id":"75.523-3","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.523-3","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"(a) Except for personnel carriers, rubber-tired, self-propelled electric haulage equipment used in the active workings of underground coal mines shall be equipped with automatic emergency-parking brakes in accordance with the following schedule.\n\n(1) On and after May 23, 1989—\n\n(i) All new equipment ordered; and\n\n(ii) All equipment originally furnished with or retrofitted with automatic emergency-parking brakes which meet the requirements of this section.\n\n(2) On and after May 23, 1991, all other equipment.\n\n(b) Automatic emergency-parking brakes shall—\n\n(1) Be activated immediately by the emergency deenergization device required by 30 CFR 75.523-1 and 75.523-2;\n\n(2) Engage automatically within 5.0 seconds when the equipment is deenergized;\n\n(3) Safely bring the equipment when fully loaded to a complete stop on the maximum grade on which it is operated;\n\n(4) Hold the equipment stationary despite any contraction of brake parts, exhaustion of any non-mechanical source of energy, or leakage; and\n\n(5) Release only by a manual control that does not operate any other equipment function.\n\n(c) Automatic emergency-parking brakes shall include a means in the equipment operator's compartment to—\n\n(1) Apply the brakes manually without deenergizing the equipment; and\n\n(2) Release and reengage the brakes without energizing the equipment.\n\n(d) On and after November 24, 1989, rubber-tired, self-propelled electric face equipment not covered by paragraph (a) of this section shall be equipped with a means incorporated on the equipment and operable from each tramming station to hold the equipment stationary—\n\n(1) On the maximum grade on which it is operated; and\n\n(2) Despite any contraction of components, exhaustion of any non-mechanical source of energy, or leakage.\n\n(e) The brake systems required by paragraphs (a) or (d) of this section shall be applied when the equipment operator is not at the controls of the equipment, except during movement of disabled equipment.\n\n[54 FR 12412, Mar. 24, 1989]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.503","heading":"Permissible electric face equipment; maintenance.","id":"75.503","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.503","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"[Statutory Provisions]\n\nThe operator of each coal mine shall maintain in permissible condition all electric face equipment required by §§ 75.500, 75.501, 75.504 to be permissible which is taken into or used inby the last open crosscut of any such mine.","occurrenceCount":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.333","heading":"Ventilation controls.","id":"75.333","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.333","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a) For purposes of this section, “doors” include any door frames.\n\n(b) Permanent stoppings or other permanent ventilation control devices constructed after November 15, 1992, shall be built and maintained—\n\n(1) Between intake and return air courses, except temporary controls may be used in rooms that are 600 feet or less from the centerline of the entry from which the room was developed including where continuous face haulage systems are used in such rooms. Unless otherwise approved in the ventilation plan, these stoppings or controls shall be maintained to and including the third connecting crosscut outby the working face;\n\n(2) To separate belt conveyor haulageways from return air courses, except where belt entries in areas of mines developed before March 30, 1970, are used as return air courses;\n\n(3) To separate belt conveyor haulageways from intake air courses when the air in the intake air courses is used to provide air to active working places. Temporary ventilation controls may be used in rooms that are 600 feet or less from the centerline of the entry from which the rooms were developed including where continuous face haulage systems are used in such rooms. When continuous face haulage systems are used, permanent stoppings or other permanent ventilation control devices shall be built and maintained to the outby most point of travel of the dolly or 600 feet from the point of deepest penetration in the conveyor belt entry, whichever distance is closer to the point of deepest penetration, to separate the continuous haulage entry from the intake entries;\n\n(4) To separate the primary escapeway from belt and trolley haulage entries, as required by § 75.380(g). For the purposes of § 75.380(g), the loading point for a continuous haulage system shall be the outby most point of travel of the dolly or 600 feet from the point of deepest penetration, whichever distance is less; and\n\n(5) In return air courses to direct air into adjacent worked-out areas.\n\n(c) Personnel doors shall be constructed of noncombustible material and shall be of sufficient strength to serve their intended purpose of maintaining separation and permitting travel between air courses, and shall be installed as follows in permanent stoppings constructed after November 15, 1992:\n\n(1) The distance between personnel doors shall be no more than 300 feet in seam heights below 48 inches and 600 feet in seam heights 48 inches or higher.\n\n(2) The location of all personnel doors in stoppings along escapeways shall be clearly marked so that the doors may be easily identified by anyone traveling in the escapeway and in the entries on either side of the doors.\n\n(3) When not in use, personnel doors shall be closed.\n\n(4) An airlock shall be established where the air pressure differential between air courses creates a static force exceeding 125 pounds on closed personnel doors along escapeways.\n\n(d) Doors, other than personnel doors, constructed after November 15, 1992, that are used in lieu of permanent stoppings or to control ventilation within an air course shall be:\n\n(1) Made of noncombustible material or coated on all accessible surfaces with flame-retardant materials having a flame-spread index of 25 or less, as tested under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(2) Of sufficient strength to serve their intended purpose of maintaining separation and permitting travel between or within air courses or entries.\n\n(3) Installed in pairs to form an airlock. When an airlock is used, one side of the airlock shall remain closed. When not in use, both sides shall be closed.\n\n(e)(1)(i) Except as provided in paragraphs (e)(2), (3), and (4) of this section, all overcasts, undercasts, shaft partitions, permanent stoppings, and regulators, installed after June 10, 1996, shall be constructed in a traditionally accepted method and of materials that have been demonstrated to perform adequately or in a method and of materials that have been tested and shown to have a minimum strength equal to or greater than the traditionally accepted in-mine controls. Tests may be performed under ASTM E72-80, “Standard Methods of Conducting Strength Tests of Panels for Building Construction” (Section 12-Transverse Load-Specimen Vertical, load, only), or the operator may conduct comparative in-mine tests. In-mine tests shall be designed to demonstrate the comparative strength of the proposed construction and a traditionally accepted in-mine control. The publication ASTM E72-80, “Standard Methods of Conducting Strength Tests of Panels for Building Construction,” is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(ii) All overcasts, undercasts, shaft partitions, permanent stoppings, and regulators, installed after November 15, 1992, shall be constructed of noncombustible material. Materials that are suitable for the construction of overcasts, undercasts, shaft partitions, permanent stoppings, and regulators include concrete, concrete block, brick, cinder block, tile, or steel. No ventilation controls installed after November 15, 1992, shall be constructed of aluminum.\n\n(2) In anthracite mines, permanent stoppings may be constructed of overlapping layers of hardwood mine boards, if the stoppings are a minimum 2 inches thick.\n\n(3) When timbers are used to create permanent stoppings in heaving or caving areas, the stoppings shall be coated on all accessible surfaces with a flame-retardant material having a flame-spread index of 25 or less, as tested under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(4) In anthracite mines, doors and regulators may be constructed of overlapping layers of hardwood boards, if the doors, door frames, and regulators are a minimum 2 inches thick.\n\n(f) When sealants are applied to ventilation controls, the sealant shall have a flame-spread index of 25 or less under ASTM E162-87, “Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source.” This publication is incorporated by reference and may be inspected at any MSHA Coal Mine Safety and Health District Office, or at MSHA's Office of Standards, Regulations, and Variances, 200 Constitution Avenue NW, Washington, DC 20210; 202-693-9440; and at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. In addition, copies of the document can be purchased from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959; 610-832-9500; http://www.astm.org. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.\n\n(g) Before mining is discontinued in an entry or room that is advanced more than 20 feet from the inby rib, a crosscut shall be made or line brattice shall be installed and maintained to provide adequate ventilation. When conditions such as methane liberation warrant a distance less than 20 feet, the approved ventilation plan shall specify the location of such rooms or entries and the maximum distance they will be developed before a crosscut is made or line brattice is installed.\n\n(h) All ventilation controls, including seals, shall be maintained to serve the purpose for which they were built.\n\n[61 FR 9829, Mar. 11, 1996; 61 FR 20877, May 8, 1996; 61 FR 26442, May 28, 1996; 61 FR 29288, 29289, June 10, 1996, as amended at 67 FR 38386, June 4, 2002; 71 FR 16668, Apr. 3, 2006; 73 FR 80612, Dec. 31, 2008; 80 FR 52991, Sept. 2, 2015; 91 FR 9448, Feb. 26, 2026]","occurrenceCount":2},{"chapter":"I","heading":"Quarterly sampling; mechanized mining units.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-70/subpart-C/section-70.208","part":"70","subchapter":"O","subpart":"C","id":"70.208","citation":"30 CFR 70.208","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 70—MANDATORY HEALTH STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Tests of fire hydrants and fire hose; record of tests.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1103-11","part":"75","subchapter":"O","subpart":"L","id":"75.1103-11","citation":"30 CFR 75.1103-11","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":"4406787","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}