{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2101843","name":"MN Portable #8","status":"Intermittent","status_date":"2026-03-11","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MN","county":"Sherburne","nearest_town":"Elk River","operator_id":"L06176","operator_name":"Barton Sand & Gravel Co","controller_id":"M00174","controller_name":"Martin Marietta Materials Inc","district":"M4","office":"Duluth MN Field Office","employees":5,"latitude":45.085833,"longitude":-93.431111},"coverage":{"contributingSources":10,"registeredSources":20,"sourceRows":368},"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":"2101843","name":"MN Portable #8"},"operator":{"type":"operator","id":"L06176","name":"Barton Sand & Gravel Co"},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00051","name":"Barton Contracting Company"},"object":{"type":"mine","id":"2101843","name":"MN Portable #8"},"validFrom":"1950-01-01","validTo":"1983-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|L00051|1950-01-01|1983-02-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02956","name":"Eugene  Barton"},"object":{"type":"mine","id":"2101843","name":"MN Portable #8"},"validFrom":"1950-01-01","validTo":"1983-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|M02956|1950-01-01|1983-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02956","name":"Eugene  Barton"},"object":{"type":"operator","id":"L00051","name":"Barton Contracting Company"},"validFrom":"1950-01-01","validTo":"1983-02-28","current":false,"derived":true,"evidenceMineId":"2101843","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|L00051|1950-01-01|M02956|1950-01-01|127444"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06176","name":"Barton Sand & Gravel Co"},"object":{"type":"mine","id":"2101843","name":"MN Portable #8"},"validFrom":"1983-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|L06176|1983-03-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04929","name":"Tiller Corp"},"object":{"type":"mine","id":"2101843","name":"MN Portable #8"},"validFrom":"1983-03-01","validTo":"2021-05-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|M04929|1983-03-01|2021-05-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04929","name":"Tiller Corp"},"object":{"type":"operator","id":"L06176","name":"Barton Sand & Gravel Co"},"validFrom":"1983-03-01","validTo":"2021-05-03","current":false,"derived":true,"evidenceMineId":"2101843","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|L06176|1983-03-01|M04929|1983-03-01|133269"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"2101843","name":"MN Portable #8"},"validFrom":"2021-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|M00174|2021-05-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L06176","name":"Barton Sand & Gravel Co"},"validFrom":"2021-05-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"2101843","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2101843|L06176|1983-03-01|M00174|2021-05-04|106543"}}],"coverage":{"historyRecords":3,"edgeCount":8,"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":4,"firstDate":"2003-03-21","lastDate":"2012-04-02","metrics":{"daysLost":0,"injuries":4,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"10407","DOCUMENT_NO":"220121000040","ACCIDENT_DT":"04/02/2012","DEGREE_INJURY":"OCCUPATNAL ILLNESS NOT DEG 1-6","CLASSIFICATION":"DISORDERS (REPEATED TRAUMA)","ACCIDENT_TYPE":"NEC","OCCUPATION":"Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Hearing Loss","sourceDate":"2012-04-02"},{"SOURCE_ROW_NUMBER":"234071","DOCUMENT_NO":"220111010001","ACCIDENT_DT":"03/28/2011","DEGREE_INJURY":"OCCUPATNAL ILLNESS NOT DEG 1-6","CLASSIFICATION":"DISORDERS (REPEATED TRAUMA)","ACCIDENT_TYPE":"NEC","OCCUPATION":"Greaser, Grease man, Oiler, Lube man, Dragline oiler","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"hearing loss","sourceDate":"2011-03-28"},{"SOURCE_ROW_NUMBER":"6162","DOCUMENT_NO":"220080880011","ACCIDENT_DT":"03/07/2008","DEGREE_INJURY":"OCCUPATNAL ILLNESS NOT DEG 1-6","CLASSIFICATION":"DISORDERS (REPEATED TRAUMA)","ACCIDENT_TYPE":"NEC","OCCUPATION":"Prep plant foreman, Supervisor, Mill plant supervisor, Kiln supervisor","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Hearing loss discovered during annual hearing test.","sourceDate":"2008-03-07"},{"SOURCE_ROW_NUMBER":"57627","DOCUMENT_NO":"220030840036","ACCIDENT_DT":"03/21/2003","DEGREE_INJURY":"OCCUPATNAL ILLNESS NOT DEG 1-6","CLASSIFICATION":"DISORDERS (REPEATED TRAUMA)","ACCIDENT_TYPE":"NEC","OCCUPATION":"Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator","NO_INJURIES":"1","NARRATIVE":"HEARING LOSS RECORDED ON HIS ANNUAL HEARING TEST.","sourceDate":"2003-03-21"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2026-03-11","lastDate":"2026-03-11","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":42,"firstDate":"2000-09-07","lastDate":"2021-10-06","metrics":{"ss":9,"delinquent":40,"recentRows":2,"paidPenalty":4580,"proposedPenalty":4580,"currentAssessment":4580},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2688699","VIOLATION_NO":"6493731","ISSUE_DT":"10/06/2021","CFR_STANDARD_CD":"56.9300(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"125.00","CURRENT_ASSESSMENT_AMT":"125.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2021-10-06"},{"SOURCE_ROW_NUMBER":"2688698","VIOLATION_NO":"6493730","ISSUE_DT":"10/06/2021","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"125.00","CURRENT_ASSESSMENT_AMT":"125.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2021-10-06"},{"SOURCE_ROW_NUMBER":"2463776","VIOLATION_NO":"9448244","ISSUE_DT":"05/22/2019","CFR_STANDARD_CD":"56.12030","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"121.00","CURRENT_ASSESSMENT_AMT":"121.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2019-05-22"},{"SOURCE_ROW_NUMBER":"2463775","VIOLATION_NO":"9448243","ISSUE_DT":"05/22/2019","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"121.00","CURRENT_ASSESSMENT_AMT":"121.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2019-05-22"},{"SOURCE_ROW_NUMBER":"2450928","VIOLATION_NO":"8897200","ISSUE_DT":"10/11/2017","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"2450927","VIOLATION_NO":"8897199","ISSUE_DT":"10/11/2017","CFR_STANDARD_CD":"56.12005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"2450446","VIOLATION_NO":"8897718","ISSUE_DT":"07/11/2017","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-07-11"},{"SOURCE_ROW_NUMBER":"2392352","VIOLATION_NO":"8897648","ISSUE_DT":"04/26/2017","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-04-26"},{"SOURCE_ROW_NUMBER":"2269271","VIOLATION_NO":"8840084","ISSUE_DT":"06/02/2015","CFR_STANDARD_CD":"56.14101(a)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"2269270","VIOLATION_NO":"8840083","ISSUE_DT":"06/02/2015","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"2269269","VIOLATION_NO":"8840082","ISSUE_DT":"06/02/2015","CFR_STANDARD_CD":"56.14132(b)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"2268498","VIOLATION_NO":"8672668","ISSUE_DT":"08/08/2013","CFR_STANDARD_CD":"56.11011","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-08-08"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":3,"firstDate":"1950-01-01","lastDate":"1983-03-01","metrics":{"recentRows":0,"currentOperatorTenures":2,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":33,"firstDate":"2000-09-07","lastDate":"2026-03-18","metrics":{"inspectors":35,"recentRows":4,"onSiteHours":264.25,"inspectionHours":422.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"603757","EVENT_NO":"F037B04","INSPECTION_BEGIN_DT":"03/18/2026","INSPECTION_END_DT":"03/18/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.25","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2026-03-18"},{"SOURCE_ROW_NUMBER":"580109","EVENT_NO":"6906679","INSPECTION_BEGIN_DT":"06/21/2023","INSPECTION_END_DT":"06/21/2023","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":".5","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2023-06-21"},{"SOURCE_ROW_NUMBER":"1108583","EVENT_NO":"6901373","INSPECTION_BEGIN_DT":"10/05/2021","INSPECTION_END_DT":"10/19/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"26","SUM_TOTAL_ON_SITE_HOURS":"18","sourceDate":"2021-10-05"},{"SOURCE_ROW_NUMBER":"13311","EVENT_NO":"6901050","INSPECTION_BEGIN_DT":"05/24/2021","INSPECTION_END_DT":"05/25/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13","SUM_TOTAL_ON_SITE_HOURS":"10.5","sourceDate":"2021-05-24"},{"SOURCE_ROW_NUMBER":"67303","EVENT_NO":"6837337","INSPECTION_BEGIN_DT":"03/04/2020","INSPECTION_END_DT":"03/04/2020","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2020-03-04"},{"SOURCE_ROW_NUMBER":"1140350","EVENT_NO":"6750316","INSPECTION_BEGIN_DT":"05/22/2019","INSPECTION_END_DT":"05/23/2019","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15.5","SUM_TOTAL_ON_SITE_HOURS":"10.25","sourceDate":"2019-05-22"},{"SOURCE_ROW_NUMBER":"964042","EVENT_NO":"6750613","INSPECTION_BEGIN_DT":"08/01/2018","INSPECTION_END_DT":"08/07/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.25","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2018-08-01"},{"SOURCE_ROW_NUMBER":"66785","EVENT_NO":"6743644","INSPECTION_BEGIN_DT":"10/10/2017","INSPECTION_END_DT":"10/12/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"24","SUM_TOTAL_ON_SITE_HOURS":"17","sourceDate":"2017-10-10"},{"SOURCE_ROW_NUMBER":"86536","EVENT_NO":"6743326","INSPECTION_BEGIN_DT":"07/11/2017","INSPECTION_END_DT":"07/12/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.75","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2017-07-11"},{"SOURCE_ROW_NUMBER":"1028857","EVENT_NO":"6708186","INSPECTION_BEGIN_DT":"04/26/2017","INSPECTION_END_DT":"05/03/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12.5","SUM_TOTAL_ON_SITE_HOURS":"6.25","sourceDate":"2017-04-26"},{"SOURCE_ROW_NUMBER":"1158852","EVENT_NO":"6708664","INSPECTION_BEGIN_DT":"07/06/2016","INSPECTION_END_DT":"07/06/2016","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.75","SUM_TOTAL_ON_SITE_HOURS":"4.75","sourceDate":"2016-07-06"},{"SOURCE_ROW_NUMBER":"239562","EVENT_NO":"6633594","INSPECTION_BEGIN_DT":"06/02/2015","INSPECTION_END_DT":"06/04/2015","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2015-06-02"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":174,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":1754,"employees":4,"production":0},"2026-Q1":{"hours":254,"employees":4,"production":0},"2023-Q2":{"hours":0,"employees":0,"production":0},"2023-Q1":{"hours":0,"employees":0,"production":0},"2022-Q4":{"hours":0,"employees":0,"production":0},"2022-Q3":{"hours":0,"employees":0,"production":0},"2022-Q2":{"hours":0,"employees":0,"production":0},"2022-Q1":{"hours":0,"employees":0,"production":0},"2021-Q4":{"hours":0,"employees":0,"production":0},"2021-Q3":{"hours":2896,"employees":4,"production":0},"2021-Q2":{"hours":2896,"employees":4,"production":0},"2020-Q4":{"hours":812,"employees":4,"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":44,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2013":{"hours":14517,"employees":8,"production":0},"2014":{"hours":10095,"employees":6,"production":0},"2015":{"hours":7598,"employees":5,"production":0},"2016":{"hours":9100,"employees":6,"production":0},"2017":{"hours":10205,"employees":6,"production":0},"2018":{"hours":8854,"employees":5,"production":0},"2019":{"hours":8365,"employees":5,"production":0},"2020":{"hours":6965,"employees":4,"production":0},"2021":{"hours":5792,"employees":4,"production":0},"2026":{"hours":2008,"employees":4,"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":23,"firstDate":"2002-11-07","lastDate":"2021-05-25","metrics":{"recentRows":3,"actionTaken":23,"maxExposureRatio":1.27,"overExposureLimit":1,"exposureRatioTotal":3.64},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"256617","EVENT_NO":"6901050","SAMPLE_NO":"000000202102243200","SAMPLE_DATE":"05/25/2021","CONTAMINANT_DESC":"Unlisted Particulate, respirable, <1% Qtz","CONCENTRATION":"0000.14","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-05-25"},{"SOURCE_ROW_NUMBER":"256616","EVENT_NO":"6901050","SAMPLE_NO":"000000202102243100","SAMPLE_DATE":"05/25/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-05-25"},{"SOURCE_ROW_NUMBER":"256615","EVENT_NO":"6901050","SAMPLE_NO":"000000202102243000","SAMPLE_DATE":"05/25/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-05-25"},{"SOURCE_ROW_NUMBER":"211089","EVENT_NO":"6743644","SAMPLE_NO":"000000201705910500","SAMPLE_DATE":"10/11/2017","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.16","EXPOSURE_LIMIT":"0001.72","C_OVER_E":"00.09","JOB_CD_DESC":"Bulldozer Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"211088","EVENT_NO":"6743644","SAMPLE_NO":"000000201705910400","SAMPLE_DATE":"10/11/2017","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Tractor Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"211087","EVENT_NO":"6743644","SAMPLE_NO":"000000201705910300","SAMPLE_DATE":"10/11/2017","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Dry Screen Plant Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"211086","EVENT_NO":"6743644","SAMPLE_NO":"000000201705910200","SAMPLE_DATE":"10/11/2017","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"159023","EVENT_NO":"6633308","SAMPLE_NO":"000000201306151200","SAMPLE_DATE":"08/08/2013","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.26","EXPOSURE_LIMIT":"0000.96","C_OVER_E":"00.27","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"CITATION/ORDER TERMINATED","sourceDate":"2013-08-08"},{"SOURCE_ROW_NUMBER":"149506","EVENT_NO":"6633302","SAMPLE_NO":"000000201305365000","SAMPLE_DATE":"07/02/2013","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Bulldozer Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2013-07-02"},{"SOURCE_ROW_NUMBER":"149505","EVENT_NO":"6633302","SAMPLE_NO":"000000201305364900","SAMPLE_DATE":"07/02/2013","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":"2013-07-02"},{"SOURCE_ROW_NUMBER":"149504","EVENT_NO":"6633302","SAMPLE_NO":"000000201305364800","SAMPLE_DATE":"07/02/2013","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.19","EXPOSURE_LIMIT":"0000.75","C_OVER_E":"00.25","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2013-07-02"},{"SOURCE_ROW_NUMBER":"149503","EVENT_NO":"6633302","SAMPLE_NO":"000000201305364700","SAMPLE_DATE":"07/02/2013","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.84","EXPOSURE_LIMIT":"0000.66","C_OVER_E":"01.27","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"CITATION/ORDER ISSUED","sourceDate":"2013-07-02"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":43,"firstDate":"2000-09-07","lastDate":"2021-10-06","metrics":{"ss":9,"amountDue":4580,"contested":0,"amountPaid":4580,"recentRows":2,"section104d":0,"unterminated":1,"proposedPenalty":4580},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1354976","VIOLATION_NO":"6493731","VIOLATION_ISSUE_DT":"10/06/2021","SIG_SUB":"N","PART_SECTION":"56.9300(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/06/2021","PROPOSED_PENALTY":"125","AMOUNT_DUE":"125","AMOUNT_PAID":"125","CONTESTED_IND":"N","sourceDate":"2021-10-06"},{"SOURCE_ROW_NUMBER":"1354975","VIOLATION_NO":"6493730","VIOLATION_ISSUE_DT":"10/06/2021","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/19/2021","PROPOSED_PENALTY":"125","AMOUNT_DUE":"125","AMOUNT_PAID":"125","CONTESTED_IND":"N","sourceDate":"2021-10-06"},{"SOURCE_ROW_NUMBER":"1354953","VIOLATION_NO":"9448244","VIOLATION_ISSUE_DT":"05/22/2019","SIG_SUB":"N","PART_SECTION":"56.12030","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/22/2019","PROPOSED_PENALTY":"121","AMOUNT_DUE":"121","AMOUNT_PAID":"121","CONTESTED_IND":"N","sourceDate":"2019-05-22"},{"SOURCE_ROW_NUMBER":"1354952","VIOLATION_NO":"9448243","VIOLATION_ISSUE_DT":"05/22/2019","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/22/2019","PROPOSED_PENALTY":"121","AMOUNT_DUE":"121","AMOUNT_PAID":"121","CONTESTED_IND":"N","sourceDate":"2019-05-22"},{"SOURCE_ROW_NUMBER":"1354978","VIOLATION_NO":"8897200","VIOLATION_ISSUE_DT":"10/11/2017","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/12/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"1354977","VIOLATION_NO":"8897199","VIOLATION_ISSUE_DT":"10/11/2017","SIG_SUB":"N","PART_SECTION":"56.12005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/11/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-10-11"},{"SOURCE_ROW_NUMBER":"1354965","VIOLATION_NO":"8897718","VIOLATION_ISSUE_DT":"07/11/2017","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"07/12/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-07-11"},{"SOURCE_ROW_NUMBER":"1354951","VIOLATION_NO":"8897648","VIOLATION_ISSUE_DT":"04/26/2017","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"04/26/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-04-26"},{"SOURCE_ROW_NUMBER":"1354958","VIOLATION_NO":"8840084","VIOLATION_ISSUE_DT":"06/02/2015","SIG_SUB":"N","PART_SECTION":"56.14101(a)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/04/2015","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"1354957","VIOLATION_NO":"8840083","VIOLATION_ISSUE_DT":"06/02/2015","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/03/2015","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"1354956","VIOLATION_NO":"8840082","VIOLATION_ISSUE_DT":"06/02/2015","SIG_SUB":"N","PART_SECTION":"56.14132(b)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"06/03/2015","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2015-06-02"},{"SOURCE_ROW_NUMBER":"1354968","VIOLATION_NO":"8672668","VIOLATION_ISSUE_DT":"08/08/2013","SIG_SUB":"Y","PART_SECTION":"56.11011","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/08/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-08-08"}]}],"safety":{"href":"/api/v1/mines/2101843/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2101843/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":"Berms or guardrails.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300","part":"56","subchapter":"K","subpart":"H","id":"56.9300","citation":"30 CFR 56.9300","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":"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":"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":4},{"chapter":"I","heading":"Protection of power conductors from mobile equipment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12005","part":"56","subchapter":"K","subpart":"K","id":"56.12005","citation":"30 CFR 56.12005","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":"Brakes.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101","part":"56","subchapter":"K","subpart":"M","id":"56.14101","citation":"30 CFR 56.14101","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":"Horns and backup alarms.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132","part":"56","subchapter":"K","subpart":"M","id":"56.14132","citation":"30 CFR 56.14132","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":"Use of ladders.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11011","part":"56","subchapter":"K","subpart":"J","id":"56.11011","citation":"30 CFR 56.11011","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":"2101843","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}