{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4500572","name":"Matheson Pit","status":"Abandoned","status_date":"2012-12-03","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"WA","county":"Benton","nearest_town":"Kennewick","operator_id":"L00029","operator_name":"Central Pre-Mix Concrete Co.","controller_id":"M06183","controller_name":"CRH PLC","district":"M7","office":"Boise ID Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":14,"registeredSources":20,"sourceRows":289},"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":"4500572","name":"Matheson Pit"},"operator":{"type":"operator","id":"L00029","name":"Central Pre-Mix Concrete Co."},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01884","name":"Acme Concrete Company"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"1950-01-01","validTo":"1988-07-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L01884|1950-01-01|1988-07-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01697","name":"Donald H  Herak"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"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":"4500572|M01697|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01697","name":"Donald H  Herak"},"object":{"type":"operator","id":"L01884","name":"Acme Concrete Company"},"validFrom":"1950-01-01","validTo":"1988-07-14","current":false,"derived":true,"evidenceMineId":"4500572","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L01884|1950-01-01|M01697|1950-01-01|120380"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"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":"4500572|M06183|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10395","name":"Acme Concrete Company"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"1988-07-15","validTo":"1988-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L10395|1988-07-15|1988-11-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"1988-07-15","validTo":"1988-11-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|M00002|1988-07-15|1988-11-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00002","name":"Koppers Company Inc"},"object":{"type":"operator","id":"L10395","name":"Acme Concrete Company"},"validFrom":"1988-07-15","validTo":"1988-11-13","current":false,"derived":true,"evidenceMineId":"4500572","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L10395|1988-07-15|M00002|1988-07-15|100421"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11595","name":"Acme Materials & Construction Company"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"1988-11-14","validTo":"2000-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L11595|1988-11-14|2000-06-29"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"1988-11-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|M00521|1988-11-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L11595","name":"Acme Materials & Construction Company"},"validFrom":"1988-11-14","validTo":"2000-06-29","current":false,"derived":true,"evidenceMineId":"4500572","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L11595|1988-11-14|M00521|1988-11-14|112489"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00029","name":"Central Pre-Mix Concrete Co."},"object":{"type":"mine","id":"4500572","name":"Matheson Pit"},"validFrom":"2000-06-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L00029|2000-06-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L00029","name":"Central Pre-Mix Concrete Co."},"validFrom":"2000-06-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4500572","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500572|L00029|2000-06-30|M06183|1950-01-01|136433"}}],"coverage":{"historyRecords":4,"edgeCount":12,"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":1,"firstDate":"2002-01-24","lastDate":"2002-01-24","metrics":{"daysLost":0,"injuries":1,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"231391","DOCUMENT_NO":"220020980053","ACCIDENT_DT":"01/24/2002","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by flying object","OCCUPATION":"Miner, NEC","NO_INJURIES":"1","NARRATIVE":"FOREIGN BODY ENTERED RIGHT EYE SOMETHING DINING THE COURSE OF WORKDAY BETWEEN 8:30-3:00","sourceDate":"2002-01-24"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2012-12-03","lastDate":"2012-12-03","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":51,"firstDate":"2000-03-07","lastDate":"2008-12-09","metrics":{"ss":6,"delinquent":51,"recentRows":0,"paidPenalty":3242,"proposedPenalty":4281,"currentAssessment":3242},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"612506","VIOLATION_NO":"6430732","ISSUE_DT":"12/09/2008","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":"2008-12-09"},{"SOURCE_ROW_NUMBER":"612505","VIOLATION_NO":"6430731","ISSUE_DT":"12/09/2008","CFR_STANDARD_CD":"56.12032","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-12-09"},{"SOURCE_ROW_NUMBER":"612504","VIOLATION_NO":"6430730","ISSUE_DT":"12/09/2008","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":"2008-12-09"},{"SOURCE_ROW_NUMBER":"612503","VIOLATION_NO":"6430729","ISSUE_DT":"12/09/2008","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":"2008-12-09"},{"SOURCE_ROW_NUMBER":"596173","VIOLATION_NO":"6436101","ISSUE_DT":"04/08/2008","CFR_STANDARD_CD":"56.12032","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-04-08"},{"SOURCE_ROW_NUMBER":"582991","VIOLATION_NO":"7959465","ISSUE_DT":"05/02/2007","CFR_STANDARD_CD":"56.11005","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"162.00","CURRENT_ASSESSMENT_AMT":"162.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2007-05-02"},{"SOURCE_ROW_NUMBER":"581787","VIOLATION_NO":"6384404","ISSUE_DT":"04/18/2006","CFR_STANDARD_CD":"56.14207","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-04-18"},{"SOURCE_ROW_NUMBER":"581786","VIOLATION_NO":"6384403","ISSUE_DT":"04/18/2006","CFR_STANDARD_CD":"56.9300(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-04-18"},{"SOURCE_ROW_NUMBER":"564007","VIOLATION_NO":"6364000","ISSUE_DT":"07/20/2005","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":"2005-07-20"},{"SOURCE_ROW_NUMBER":"564006","VIOLATION_NO":"6363902","ISSUE_DT":"07/20/2005","CFR_STANDARD_CD":"56.4101","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-07-20"},{"SOURCE_ROW_NUMBER":"563513","VIOLATION_NO":"6363709","ISSUE_DT":"05/03/2005","CFR_STANDARD_CD":"45.4(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"563512","VIOLATION_NO":"6363707","ISSUE_DT":"05/03/2005","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":"2005-05-03"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":18,"firstDate":"2000-10-11","lastDate":"2001-02-22","metrics":{"appeals":0,"decisions":18,"recentRows":0,"decisionPenalty":1160,"originalPenalty":2599},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"179659","VIOLATION_NO":"7924312","DOCKET_NO":"WEST20000473M","DECISION_DT":"02/22/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1000.00","DECISION_PENALTY_AMT":"600.00","JUDGE_FIRST_NAME":"August","JUDGE_LAST_NAME":"Cetti","sourceDate":"2001-02-22"},{"SOURCE_ROW_NUMBER":"481138","VIOLATION_NO":"7979734","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"481137","VIOLATION_NO":"7979730","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"480959","VIOLATION_NO":"7979729","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"480249","VIOLATION_NO":"7979732","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"480248","VIOLATION_NO":"7979727","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"479733","VIOLATION_NO":"7979735","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"479732","VIOLATION_NO":"7979721","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"179660","VIOLATION_NO":"7979722","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"179365","VIOLATION_NO":"7979738","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"179364","VIOLATION_NO":"7979733","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"},{"SOURCE_ROW_NUMBER":"179363","VIOLATION_NO":"7979724","DOCKET_NO":"WEST20000473M","DECISION_DT":"01/12/2001","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"55.00","DECISION_PENALTY_AMT":"55.00","JUDGE_FIRST_NAME":"David","JUDGE_LAST_NAME":"Barbour","sourceDate":"2001-01-12"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":18,"firstDate":"2000-03-31","lastDate":"2000-03-31","metrics":{"linkedIssuances":18},"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":1,"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":1,"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":4,"firstDate":"1950-01-01","lastDate":"2000-06-30","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":25,"firstDate":"2000-03-06","lastDate":"2010-01-05","metrics":{"inspectors":28,"recentRows":0,"onSiteHours":241,"inspectionHours":426.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"468973","EVENT_NO":"1151501","INSPECTION_BEGIN_DT":"01/05/2010","INSPECTION_END_DT":"01/06/2010","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2010-01-05"},{"SOURCE_ROW_NUMBER":"866381","EVENT_NO":"1145050","INSPECTION_BEGIN_DT":"12/08/2008","INSPECTION_END_DT":"12/10/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"22.5","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2008-12-08"},{"SOURCE_ROW_NUMBER":"194843","EVENT_NO":"1138412","INSPECTION_BEGIN_DT":"04/08/2008","INSPECTION_END_DT":"04/08/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2008-04-08"},{"SOURCE_ROW_NUMBER":"1124999","EVENT_NO":"1138166","INSPECTION_BEGIN_DT":"12/06/2007","INSPECTION_END_DT":"12/06/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12.75","SUM_TOTAL_ON_SITE_HOURS":"3.5","sourceDate":"2007-12-06"},{"SOURCE_ROW_NUMBER":"338857","EVENT_NO":"1131846","INSPECTION_BEGIN_DT":"05/02/2007","INSPECTION_END_DT":"05/03/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"21","SUM_TOTAL_ON_SITE_HOURS":"11","sourceDate":"2007-05-02"},{"SOURCE_ROW_NUMBER":"1076601","EVENT_NO":"1131196","INSPECTION_BEGIN_DT":"04/18/2006","INSPECTION_END_DT":"04/19/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2006-04-18"},{"SOURCE_ROW_NUMBER":"799698","EVENT_NO":"1131174","INSPECTION_BEGIN_DT":"01/31/2006","INSPECTION_END_DT":"01/31/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15.5","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2006-01-31"},{"SOURCE_ROW_NUMBER":"1049020","EVENT_NO":"1123691","INSPECTION_BEGIN_DT":"07/19/2005","INSPECTION_END_DT":"07/20/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19.5","SUM_TOTAL_ON_SITE_HOURS":"15","sourceDate":"2005-07-19"},{"SOURCE_ROW_NUMBER":"900448","EVENT_NO":"1123421","INSPECTION_BEGIN_DT":"05/03/2005","INSPECTION_END_DT":"05/04/2005","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"180148","EVENT_NO":"1123422","INSPECTION_BEGIN_DT":"05/03/2005","INSPECTION_END_DT":"05/04/2005","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"577452","EVENT_NO":"1118618","INSPECTION_BEGIN_DT":"11/03/2004","INSPECTION_END_DT":"11/04/2004","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"21","SUM_TOTAL_ON_SITE_HOURS":"13","sourceDate":"2004-11-03"},{"SOURCE_ROW_NUMBER":"604246","EVENT_NO":"1123217","INSPECTION_BEGIN_DT":"08/30/2004","INSPECTION_END_DT":"08/30/2004","ACTIVITY_CODE":"82","ACTIVITY":"AT MINE TRAINING ACTIVITIES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2004-08-30"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":80,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2009-Q4":{"hours":316,"employees":19,"production":0},"2009-Q3":{"hours":1136,"employees":27,"production":0},"2009-Q2":{"hours":458,"employees":32,"production":0},"2009-Q1":{"hours":250,"employees":17,"production":0},"2008-Q4":{"hours":1668,"employees":17,"production":0},"2008-Q3":{"hours":2052,"employees":17,"production":0},"2008-Q2":{"hours":1899,"employees":4,"production":0},"2008-Q1":{"hours":2862,"employees":5,"production":0},"2007-Q4":{"hours":2204,"employees":5,"production":0},"2007-Q3":{"hours":2171,"employees":5,"production":0},"2007-Q2":{"hours":2273,"employees":5,"production":0},"2007-Q1":{"hours":2590,"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":20,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":13479,"employees":11,"production":0},"2001":{"hours":8645,"employees":5,"production":0},"2002":{"hours":10592,"employees":6,"production":0},"2003":{"hours":9071,"employees":8,"production":0},"2004":{"hours":7618,"employees":6,"production":0},"2005":{"hours":7347,"employees":6,"production":0},"2006":{"hours":8494,"employees":6,"production":0},"2007":{"hours":9238,"employees":5,"production":0},"2008":{"hours":8481,"employees":11,"production":0},"2009":{"hours":2160,"employees":24,"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":14,"firstDate":"2001-03-27","lastDate":"2005-07-20","metrics":{"recentRows":0,"actionTaken":14,"maxExposureRatio":0.61,"overExposureLimit":0,"exposureRatioTotal":2.71},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"60498","EVENT_NO":"1123691","SAMPLE_NO":"000000200506633500","SAMPLE_DATE":"07/20/2005","CONTAMINANT_DESC":"Unlisted Particulate, respirable, <1% Qtz","CONCENTRATION":"0000.32","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2005-07-20"},{"SOURCE_ROW_NUMBER":"60497","EVENT_NO":"1123691","SAMPLE_NO":"000000200506633400","SAMPLE_DATE":"07/20/2005","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.37","EXPOSURE_LIMIT":"0000.61","C_OVER_E":"00.61","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2005-07-20"},{"SOURCE_ROW_NUMBER":"25213","EVENT_NO":"1118141","SAMPLE_NO":"000000200309914600","SAMPLE_DATE":"12/04/2003","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":"2003-12-04"},{"SOURCE_ROW_NUMBER":"25212","EVENT_NO":"1118141","SAMPLE_NO":"000000200309914500","SAMPLE_DATE":"12/04/2003","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.18","EXPOSURE_LIMIT":"0000.52","C_OVER_E":"00.35","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2003-12-04"},{"SOURCE_ROW_NUMBER":"25211","EVENT_NO":"1118141","SAMPLE_NO":"000000200309914400","SAMPLE_DATE":"12/04/2003","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2003-12-04"},{"SOURCE_ROW_NUMBER":"32082","EVENT_NO":"1118213","SAMPLE_NO":"000000200304962800","SAMPLE_DATE":"06/05/2003","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.37","EXPOSURE_LIMIT":"0000.85","C_OVER_E":"00.44","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2003-06-05"},{"SOURCE_ROW_NUMBER":"32081","EVENT_NO":"1118213","SAMPLE_NO":"000000200304962700","SAMPLE_DATE":"06/05/2003","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.19","EXPOSURE_LIMIT":"0000.92","C_OVER_E":"00.21","JOB_CD_DESC":"Forklift Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2003-06-05"},{"SOURCE_ROW_NUMBER":"32080","EVENT_NO":"1118213","SAMPLE_NO":"000000200304962600","SAMPLE_DATE":"06/05/2003","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.19","EXPOSURE_LIMIT":"0000.49","C_OVER_E":"00.39","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2003-06-05"},{"SOURCE_ROW_NUMBER":"1887","EVENT_NO":"0778483","SAMPLE_NO":"000000200202324100","SAMPLE_DATE":"04/03/2002","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.50","EXPOSURE_LIMIT":"0001.71","C_OVER_E":"00.29","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2002-04-03"},{"SOURCE_ROW_NUMBER":"1886","EVENT_NO":"0778483","SAMPLE_NO":"000000200202324000","SAMPLE_DATE":"04/03/2002","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.20","EXPOSURE_LIMIT":"0000.68","C_OVER_E":"00.29","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2002-04-03"},{"SOURCE_ROW_NUMBER":"1885","EVENT_NO":"0778483","SAMPLE_NO":"000000200202323900","SAMPLE_DATE":"04/03/2002","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":"2002-04-03"},{"SOURCE_ROW_NUMBER":"5035","EVENT_NO":"0708001","SAMPLE_NO":"000000200101179600","SAMPLE_DATE":"03/27/2001","CONTAMINANT_DESC":"Unlisted Particulate, respirable, <1% Qtz","CONCENTRATION":"0000.43","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Laborer, Bullgang","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2001-03-27"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":54,"firstDate":"2000-03-07","lastDate":"2008-12-09","metrics":{"ss":6,"amountDue":3242,"contested":17,"amountPaid":3242,"recentRows":0,"section104d":0,"unterminated":3,"proposedPenalty":4281},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2450234","VIOLATION_NO":"6430732","VIOLATION_ISSUE_DT":"12/09/2008","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/09/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-12-09"},{"SOURCE_ROW_NUMBER":"2450233","VIOLATION_NO":"6430731","VIOLATION_ISSUE_DT":"12/09/2008","SIG_SUB":"N","PART_SECTION":"56.12032","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/10/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-12-09"},{"SOURCE_ROW_NUMBER":"2450232","VIOLATION_NO":"6430730","VIOLATION_ISSUE_DT":"12/09/2008","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"12/10/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-12-09"},{"SOURCE_ROW_NUMBER":"2450231","VIOLATION_NO":"6430729","VIOLATION_ISSUE_DT":"12/09/2008","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"12/10/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-12-09"},{"SOURCE_ROW_NUMBER":"2450202","VIOLATION_NO":"6436101","VIOLATION_ISSUE_DT":"04/08/2008","SIG_SUB":"N","PART_SECTION":"56.12032","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/08/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-04-08"},{"SOURCE_ROW_NUMBER":"2450210","VIOLATION_NO":"7959465","VIOLATION_ISSUE_DT":"05/02/2007","SIG_SUB":"Y","PART_SECTION":"56.11005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/02/2007","PROPOSED_PENALTY":"162","AMOUNT_DUE":"162","AMOUNT_PAID":"162","CONTESTED_IND":"N","sourceDate":"2007-05-02"},{"SOURCE_ROW_NUMBER":"2450209","VIOLATION_NO":"6384404","VIOLATION_ISSUE_DT":"04/18/2006","SIG_SUB":"N","PART_SECTION":"56.14207","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/18/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-04-18"},{"SOURCE_ROW_NUMBER":"2450208","VIOLATION_NO":"6384403","VIOLATION_ISSUE_DT":"04/18/2006","SIG_SUB":"N","PART_SECTION":"56.9300(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/18/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-04-18"},{"SOURCE_ROW_NUMBER":"2450228","VIOLATION_NO":"6364000","VIOLATION_ISSUE_DT":"07/20/2005","SIG_SUB":"N","PART_SECTION":"56.13015(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/15/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-07-20"},{"SOURCE_ROW_NUMBER":"2450227","VIOLATION_NO":"6363902","VIOLATION_ISSUE_DT":"07/20/2005","SIG_SUB":"N","PART_SECTION":"56.4101","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"07/20/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-07-20"},{"SOURCE_ROW_NUMBER":"2450219","VIOLATION_NO":"6363709","VIOLATION_ISSUE_DT":"05/03/2005","SIG_SUB":"N","PART_SECTION":"45.4(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"05/03/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"2450218","VIOLATION_NO":"6363707","VIOLATION_ISSUE_DT":"05/03/2005","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"05/03/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-05-03"}]}],"safety":{"href":"/api/v1/mines/4500572/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4500572/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":3},{"chapter":"I","heading":"Inspection and cover plates.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032","part":"56","subchapter":"K","subpart":"K","id":"56.12032","citation":"30 CFR 56.12032","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":"Fixed ladder anchorage and toe clearance.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11005","part":"56","subchapter":"K","subpart":"J","id":"56.11005","citation":"30 CFR 56.11005","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":"Parking procedures for unattended equipment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207","part":"56","subchapter":"K","subpart":"M","id":"56.14207","citation":"30 CFR 56.14207","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":"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":"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":"Warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101","part":"56","subchapter":"K","subpart":"C","id":"56.4101","citation":"30 CFR 56.4101","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":"Independent contractor register.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-45/section-45.4","part":"45","subchapter":"G","subpart":"","id":"45.4","citation":"30 CFR 45.4","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER G—FILING AND OTHER ADMINISTRATIVE REQUIREMENTS","partHeading":"PART 45—INDEPENDENT CONTRACTORS","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4500572","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}