{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4702651","name":"Plant #27","status":"Abandoned","status_date":"2009-05-14","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"WI","county":"La Crosse","nearest_town":"Tomah","operator_id":"L16472","operator_name":"Milestone Materials Div/Mathy Construction Co","controller_id":"M00893","controller_name":"Mathy Construction Company","district":"M4","office":"Duluth District","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":10,"registeredSources":20,"sourceRows":134},"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":"4702651","name":"Plant #27"},"operator":{"type":"operator","id":"L16472","name":"Milestone Materials Div/Mathy Construction Co"},"controller":{"type":"controller","id":"M00893","name":"Mathy Construction Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00029","name":"Adolph T Schwartz"},"object":{"type":"mine","id":"4702651","name":"Plant #27"},"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":"4702651|M00029|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00893","name":"Mathy Construction Company"},"object":{"type":"mine","id":"4702651","name":"Plant #27"},"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":"4702651|M00893|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00080","name":"Arthur Overgaard Inc"},"object":{"type":"mine","id":"4702651","name":"Plant #27"},"validFrom":"1980-03-01","validTo":"1985-06-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4702651|L00080|1980-03-01|1985-06-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00029","name":"Adolph T Schwartz"},"object":{"type":"operator","id":"L00080","name":"Arthur Overgaard Inc"},"validFrom":"1980-03-01","validTo":"1985-06-03","current":false,"derived":true,"evidenceMineId":"4702651","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4702651|L00080|1980-03-01|M00029|1950-01-01|102138"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16472","name":"Milestone Materials Div/Mathy Construction Co"},"object":{"type":"mine","id":"4702651","name":"Plant #27"},"validFrom":"1985-06-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4702651|L16472|1985-06-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00893","name":"Mathy Construction Company"},"object":{"type":"operator","id":"L16472","name":"Milestone Materials Div/Mathy Construction Co"},"validFrom":"1985-06-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4702651","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4702651|L16472|1985-06-04|M00893|1950-01-01|115716"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":8,"firstDate":"2000-11-01","lastDate":"2005-03-10","metrics":{"daysLost":15,"injuries":8,"fatalities":0,"recentRows":0,"restrictedDays":29,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"167578","DOCUMENT_NO":"220050970016","ACCIDENT_DT":"03/10/2005","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Haul/Off road/Coal/Ore/Pit/Quarry/Rock/Rubber tire truck driver, Transportation truck driver","NO_INJURIES":"1","DAYS_LOST":"11","NARRATIVE":"As Employee was binding down the load he felt a pop in his low back and could not stand straight.","sourceDate":"2005-03-10"},{"SOURCE_ROW_NUMBER":"184780","DOCUMENT_NO":"220050840018","ACCIDENT_DT":"02/17/2005","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall to the walkway or working surface","OCCUPATION":"Outside foreman, Leadman","NO_INJURIES":"1","DAYS_LOST":"3","NARRATIVE":"Slipped and fell on the ice on his way to shut the feeder off.","sourceDate":"2005-02-17"},{"SOURCE_ROW_NUMBER":"90069","DOCUMENT_NO":"220032870102","ACCIDENT_DT":"07/22/2003","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","NARRATIVE":"EE LACERATED HIS LEFT THUMB WHILE CUTTING WATER HOSE.","sourceDate":"2003-07-22"},{"SOURCE_ROW_NUMBER":"132951","DOCUMENT_NO":"220021680051","ACCIDENT_DT":"06/05/2002","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"OTHER","ACCIDENT_TYPE":"Unclassified, insufficient data","OCCUPATION":"Mine manager, Mine foreman, Mine owner","NO_INJURIES":"1","NARRATIVE":"EE REPORTS THAT HE HAD SWELLING IN HIS LEFT KNEE ON 6-5-02 AFTER CHANGING OIL IN MOTORS. HE SOUGHT MEDICAL TREATMENT AND HAD CC FLUID REMOVED FROM HIS KNEE.","sourceDate":"2002-06-05"},{"SOURCE_ROW_NUMBER":"51367","DOCUMENT_NO":"220013040020","ACCIDENT_DT":"08/08/2001","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against a moving object","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"EE WAS BOUNCING IN HIS LOADER OVER ROUGH TERRAIN MUSH OF THE DAY, CAUSING PAIN IN BACK & LEGS.","sourceDate":"2001-08-08"},{"SOURCE_ROW_NUMBER":"68534","DOCUMENT_NO":"220012010046","ACCIDENT_DT":"05/11/2001","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","NARRATIVE":"WHILE PICKING UP A PALLET OF ROLLERS, EE STRAINED HIS BACK. PAIN GOT WORSE OVER TIME, CAUSING HIM TO SEEK TREATMENT.","sourceDate":"2001-05-11"},{"SOURCE_ROW_NUMBER":"132950","DOCUMENT_NO":"220011090014","ACCIDENT_DT":"03/14/2001","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Welder (shop)","NO_INJURIES":"1","NARRATIVE":"WHEN CHANGING THE IMPACT BARS ONTHE MILL. EE STRUCK HIS HAND W/HAMMER. HE ATTEMPTED TO REMOVE A BOLT W/HAMMER AND PUNCH.","sourceDate":"2001-03-14"},{"SOURCE_ROW_NUMBER":"223473","DOCUMENT_NO":"220010240033","ACCIDENT_DT":"11/01/2000","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Front-end loader, Scraper-loader operator, Pan operator, Payloader, Scraper rig operator","NO_INJURIES":"1","NARRATIVE":"WHEN CLIMBING UP THE LADDER OF LOADER EE MISSED A RUNG OF THE LADDER. HE CAUGHT HIMSELF WITH RIGHT ARM, TWISTING HIS BODY. HIS SHOULDER POPPED AND HE COULD NOT RAISE HIS ARM ALL DAY. SOUGHT ME DICAL TREATMENT BUT HAD NO LOSS TIME.","sourceDate":"2000-11-01"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2009-05-14","lastDate":"2009-05-14","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":13,"firstDate":"2000-06-29","lastDate":"2007-09-11","metrics":{"ss":1,"delinquent":13,"recentRows":0,"paidPenalty":855,"proposedPenalty":855,"currentAssessment":855},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"379987","VIOLATION_NO":"6198324","ISSUE_DT":"09/11/2007","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2007-09-11"},{"SOURCE_ROW_NUMBER":"379986","VIOLATION_NO":"6198323","ISSUE_DT":"09/11/2007","CFR_STANDARD_CD":"56.12030","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2007-09-11"},{"SOURCE_ROW_NUMBER":"346117","VIOLATION_NO":"6182113","ISSUE_DT":"07/26/2006","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"346116","VIOLATION_NO":"6182112","ISSUE_DT":"07/26/2006","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"331962","VIOLATION_NO":"6165225","ISSUE_DT":"11/08/2004","CFR_STANDARD_CD":"56.13015(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":"2004-11-08"},{"SOURCE_ROW_NUMBER":"318331","VIOLATION_NO":"6139025","ISSUE_DT":"09/18/2002","CFR_STANDARD_CD":"56.4201(a)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"318330","VIOLATION_NO":"6139024","ISSUE_DT":"09/18/2002","CFR_STANDARD_CD":"56.14100(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"318329","VIOLATION_NO":"6139023","ISSUE_DT":"09/18/2002","CFR_STANDARD_CD":"56.14108","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"147714","VIOLATION_NO":"7836972","ISSUE_DT":"08/28/2000","CFR_STANDARD_CD":"56.5001(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-08-28"},{"SOURCE_ROW_NUMBER":"147713","VIOLATION_NO":"7836917","ISSUE_DT":"07/06/2000","CFR_STANDARD_CD":"56.5050","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-07-06"},{"SOURCE_ROW_NUMBER":"147712","VIOLATION_NO":"7836916","ISSUE_DT":"06/29/2000","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-06-29"},{"SOURCE_ROW_NUMBER":"147711","VIOLATION_NO":"7836915","ISSUE_DT":"06/29/2000","CFR_STANDARD_CD":"56.20003(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"90.00","CURRENT_ASSESSMENT_AMT":"90.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-06-29"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":2,"firstDate":"1980-03-01","lastDate":"1985-06-04","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":13,"firstDate":"2000-06-29","lastDate":"2008-06-18","metrics":{"inspectors":14,"recentRows":0,"onSiteHours":95.5,"inspectionHours":170.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"813123","EVENT_NO":"1006461","INSPECTION_BEGIN_DT":"06/18/2008","INSPECTION_END_DT":"06/18/2008","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.25","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2008-06-18"},{"SOURCE_ROW_NUMBER":"912508","EVENT_NO":"1009172","INSPECTION_BEGIN_DT":"09/11/2007","INSPECTION_END_DT":"09/11/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15.5","SUM_TOTAL_ON_SITE_HOURS":"10.5","sourceDate":"2007-09-11"},{"SOURCE_ROW_NUMBER":"697111","EVENT_NO":"0988060","INSPECTION_BEGIN_DT":"07/26/2006","INSPECTION_END_DT":"07/26/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19","SUM_TOTAL_ON_SITE_HOURS":"11","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"585950","EVENT_NO":"0992098","INSPECTION_BEGIN_DT":"06/07/2006","INSPECTION_END_DT":"06/07/2006","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2006-06-07"},{"SOURCE_ROW_NUMBER":"840135","EVENT_NO":"0987524","INSPECTION_BEGIN_DT":"03/07/2006","INSPECTION_END_DT":"03/07/2006","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.75","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2006-03-07"},{"SOURCE_ROW_NUMBER":"182252","EVENT_NO":"0991571","INSPECTION_BEGIN_DT":"01/25/2005","INSPECTION_END_DT":"01/25/2005","ACTIVITY_CODE":"16","ACTIVITY":"PART 50 AUDIT","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2005-01-25"},{"SOURCE_ROW_NUMBER":"1095776","EVENT_NO":"0977856","INSPECTION_BEGIN_DT":"11/08/2004","INSPECTION_END_DT":"11/09/2004","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"28","SUM_TOTAL_ON_SITE_HOURS":"15","sourceDate":"2004-11-08"},{"SOURCE_ROW_NUMBER":"1093752","EVENT_NO":"0977702","INSPECTION_BEGIN_DT":"11/13/2003","INSPECTION_END_DT":"11/14/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2003-11-13"},{"SOURCE_ROW_NUMBER":"565229","EVENT_NO":"0968600","INSPECTION_BEGIN_DT":"08/20/2003","INSPECTION_END_DT":"08/20/2003","ACTIVITY_CODE":"82","ACTIVITY":"AT MINE TRAINING ACTIVITIES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2003-08-20"},{"SOURCE_ROW_NUMBER":"794538","EVENT_NO":"0969768","INSPECTION_BEGIN_DT":"04/29/2003","INSPECTION_END_DT":"04/29/2003","ACTIVITY_CODE":"44","ACTIVITY":"SPECIAL ENFORCEMENT 3","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2003-04-29"},{"SOURCE_ROW_NUMBER":"227290","EVENT_NO":"0969767","INSPECTION_BEGIN_DT":"04/29/2003","INSPECTION_END_DT":"04/29/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2003-04-29"},{"SOURCE_ROW_NUMBER":"490978","EVENT_NO":"0967165","INSPECTION_BEGIN_DT":"09/18/2002","INSPECTION_END_DT":"09/19/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"24","SUM_TOTAL_ON_SITE_HOURS":"19","sourceDate":"2002-09-18"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":63,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2009-Q1":{"hours":1,"employees":1,"production":0},"2008-Q4":{"hours":533,"employees":1,"production":0},"2008-Q3":{"hours":9,"employees":1,"production":0},"2008-Q2":{"hours":1338,"employees":2,"production":0},"2008-Q1":{"hours":1,"employees":1,"production":0},"2007-Q4":{"hours":1901,"employees":3,"production":0},"2007-Q3":{"hours":2658,"employees":3,"production":0},"2007-Q2":{"hours":1,"employees":1,"production":0},"2007-Q1":{"hours":556,"employees":1,"production":0},"2006-Q4":{"hours":4039,"employees":5,"production":0},"2006-Q3":{"hours":4858,"employees":6,"production":0},"2006-Q2":{"hours":4146,"employees":5,"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":17761,"employees":6,"production":0},"2001":{"hours":21805,"employees":7,"production":0},"2002":{"hours":25132,"employees":8,"production":0},"2003":{"hours":21278,"employees":9,"production":0},"2004":{"hours":22206,"employees":9,"production":0},"2005":{"hours":23129,"employees":7,"production":0},"2006":{"hours":17815,"employees":6,"production":0},"2007":{"hours":5116,"employees":3,"production":0},"2008":{"hours":1881,"employees":2,"production":0},"2009":{"hours":1,"employees":1,"production":0}},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-personal-health-samples","name":"Metal and Nonmetal Personal Health Samples","domains":["health","safety"],"products":["personal exposure trend","occupation patterns","analyte coverage"],"rowCount":7,"firstDate":"2002-09-19","lastDate":"2006-07-26","metrics":{"recentRows":0,"actionTaken":7,"maxExposureRatio":0.79,"overExposureLimit":0,"exposureRatioTotal":2.05},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"51901","EVENT_NO":"0988060","SAMPLE_NO":"000000200606133200","SAMPLE_DATE":"07/26/2006","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0001.38","EXPOSURE_LIMIT":"0001.74","C_OVER_E":"00.79","JOB_CD_DESC":"Cleanup Man","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"71274","EVENT_NO":"0977856","SAMPLE_NO":"000000200410088000","SAMPLE_DATE":"11/09/2004","CONTAMINANT_DESC":"Unlisted Particulate, respirable, <1% Qtz","CONCENTRATION":"0000.38","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Drill Operator, Rotary","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2004-11-09"},{"SOURCE_ROW_NUMBER":"71128","EVENT_NO":"0977856","SAMPLE_NO":"000000200410087900","SAMPLE_DATE":"11/09/2004","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.65","EXPOSURE_LIMIT":"0001.74","C_OVER_E":"00.37","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2004-11-09"},{"SOURCE_ROW_NUMBER":"71127","EVENT_NO":"0977856","SAMPLE_NO":"000000200410087800","SAMPLE_DATE":"11/09/2004","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.95","EXPOSURE_LIMIT":"0001.53","C_OVER_E":"00.62","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2004-11-09"},{"SOURCE_ROW_NUMBER":"20443","EVENT_NO":"0967165","SAMPLE_NO":"000000200207185600","SAMPLE_DATE":"09/19/2002","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2002-09-19"},{"SOURCE_ROW_NUMBER":"20442","EVENT_NO":"0967165","SAMPLE_NO":"000000200207185500","SAMPLE_DATE":"09/19/2002","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.32","EXPOSURE_LIMIT":"0001.29","C_OVER_E":"00.25","JOB_CD_DESC":"Supervisor, Co. Official","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2002-09-19"},{"SOURCE_ROW_NUMBER":"20441","EVENT_NO":"0967165","SAMPLE_NO":"000000200207185400","SAMPLE_DATE":"09/19/2002","CONTAMINANT_DESC":"Nuisance dust, respirable, <1% Qtz","CONCENTRATION":"0000.24","EXPOSURE_LIMIT":"0010.00","C_OVER_E":"00.02","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2002-09-19"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":13,"firstDate":"2000-06-29","lastDate":"2007-09-11","metrics":{"ss":1,"amountDue":855,"contested":0,"amountPaid":855,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":855},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"3011007","VIOLATION_NO":"6198324","VIOLATION_ISSUE_DT":"09/11/2007","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/11/2007","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2007-09-11"},{"SOURCE_ROW_NUMBER":"3011006","VIOLATION_NO":"6198323","VIOLATION_ISSUE_DT":"09/11/2007","SIG_SUB":"N","PART_SECTION":"56.12030","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/11/2007","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2007-09-11"},{"SOURCE_ROW_NUMBER":"3011005","VIOLATION_NO":"6182113","VIOLATION_ISSUE_DT":"07/26/2006","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/26/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"3011004","VIOLATION_NO":"6182112","VIOLATION_ISSUE_DT":"07/26/2006","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/26/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-07-26"},{"SOURCE_ROW_NUMBER":"3011011","VIOLATION_NO":"6165225","VIOLATION_ISSUE_DT":"11/08/2004","SIG_SUB":"N","PART_SECTION":"56.13015(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"11/09/2004","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2004-11-08"},{"SOURCE_ROW_NUMBER":"3011010","VIOLATION_NO":"6139025","VIOLATION_ISSUE_DT":"09/18/2002","SIG_SUB":"N","PART_SECTION":"56.4201(a)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/19/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"3011009","VIOLATION_NO":"6139024","VIOLATION_ISSUE_DT":"09/18/2002","SIG_SUB":"N","PART_SECTION":"56.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/19/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"3011008","VIOLATION_NO":"6139023","VIOLATION_ISSUE_DT":"09/18/2002","SIG_SUB":"N","PART_SECTION":"56.14108","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/19/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-09-18"},{"SOURCE_ROW_NUMBER":"3011003","VIOLATION_NO":"7836972","VIOLATION_ISSUE_DT":"08/28/2000","SIG_SUB":"N","PART_SECTION":"56.5001(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"03/04/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-08-28"},{"SOURCE_ROW_NUMBER":"3011002","VIOLATION_NO":"7836917","VIOLATION_ISSUE_DT":"07/06/2000","SIG_SUB":"N","PART_SECTION":"56.5050","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/04/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-07-06"},{"SOURCE_ROW_NUMBER":"3011001","VIOLATION_NO":"7836916","VIOLATION_ISSUE_DT":"06/29/2000","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/30/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-06-29"},{"SOURCE_ROW_NUMBER":"3011000","VIOLATION_NO":"7836915","VIOLATION_ISSUE_DT":"06/29/2000","SIG_SUB":"Y","PART_SECTION":"56.20003(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/30/2000","PROPOSED_PENALTY":"90","AMOUNT_DUE":"90","AMOUNT_PAID":"90","CONTESTED_IND":"N","sourceDate":"2000-06-29"}]}],"safety":{"href":"/api/v1/mines/4702651/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4702651/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","heading":"Moving machine parts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107","part":"56","subchapter":"K","subpart":"M","id":"56.14107","citation":"30 CFR 56.14107","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":2},{"chapter":"I","heading":"Correction of dangerous conditions.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030","part":"56","subchapter":"K","subpart":"K","id":"56.12030","citation":"30 CFR 56.12030","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Testing grounding systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028","part":"56","subchapter":"K","subpart":"K","id":"56.12028","citation":"30 CFR 56.12028","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Electrical conductors.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004","part":"56","subchapter":"K","subpart":"K","id":"56.12004","citation":"30 CFR 56.12004","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Inspection of compressed-air receivers and other unfired pressure vessels.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13015","part":"56","subchapter":"K","subpart":"L","id":"56.13015","citation":"30 CFR 56.13015","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Inspection.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201","part":"56","subchapter":"K","subpart":"C","id":"56.4201","citation":"30 CFR 56.4201","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Safety defects; examination, correction and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100","part":"56","subchapter":"K","subpart":"M","id":"56.14100","citation":"30 CFR 56.14100","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Overhead drive belts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14108","part":"56","subchapter":"K","subpart":"M","id":"56.14108","citation":"30 CFR 56.14108","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Exposure limits for airborne contaminants.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001","part":"56","subchapter":"K","subpart":"D","id":"56.5001","citation":"30 CFR 56.5001","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Housekeeping.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003","part":"56","subchapter":"K","subpart":"S","id":"56.20003","citation":"30 CFR 56.20003","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4702651","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}